894 Commits

Author SHA1 Message Date
82fc57fd6b gdb: move go_language class declaration into header file
Move the go_language class into go-lang.h, this allows us to have
member functions implemented directly in the different go-*.c files
instead of having to trampoline out to global functions.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* go-exp.y (go_parse): Rename to...
	(go_language::parser): ...this.
	* go-lang.c (go_demangle): Rename to...
	(go_language::demangle_symbol): ...this.
	(go_language::expression_ops): Implementation moved here out of
	class declaration.
	(go_op_print_tab): Rename to...
	(go_language::op_print_tab): ...this, update comment.
	(class go_language): Declaration moved to go-lang.h.
	(go_language::language_arch_info): Implementation moved here out
	of class declaration.
	* go-lang.h (go_parse): Delete declaration.
	(go_demangle): Delete declaration.
	(go_print_type): Delete declaration.
	(go_value_print_inner): Delete declaration.
	(class go_language): Declaration moved here from go-lang.c.
	* go-typeprint.c (go_print_type): Rename to...
	(go_language::print_type): ...this.
	* go-valprint.c (go_value_print_inner): Rename to...
	(go_language::value_print_inner): ...this.
	* symtab.c (demangle_for_lookup): Call demangle_symbol method on
	the go_language object.
2020-12-23 20:53:14 +00:00
50a5f1878e gdb: introduce new 'maint flush ' prefix command
We currently have two flushing commands 'flushregs' and 'maint
flush-symbol-cache'.  I'm planning to add at least one more so I
thought it might be nice if we bundled these together into one place.

And so I created the 'maint flush ' command prefix.  Currently there
are two commands:

  (gdb) maint flush symbol-cache
  (gdb) maint flush register-cache

Unfortunately, even though both of the existing flush commands are
maintenance commands, I don't know how keen we about deleting existing
commands for fear of breaking things in the wild.  So, both of the
existing flush commands 'maint flush-symbol-cache' and 'flushregs' are
still around as deprecated aliases to the new commands.

I've updated the testsuite to use the new command syntax, and updated
the documentation too.

gdb/ChangeLog:

	* NEWS: Mention new commands, and that the old commands are now
	deprecated.
	* cli/cli-cmds.c (maintenanceflushlist): Define.
	* cli/cli-cmds.h (maintenanceflushlist): Declare.
	* maint.c (_initialize_maint_cmds): Initialise
	maintenanceflushlist.
	* regcache.c: Add 'cli/cli-cmds.h' include.
	(reg_flush_command): Add header comment.
	(_initialize_regcache): Create new 'maint flush register-cache'
	command, make 'flushregs' an alias.
	* symtab.c: Add 'cli/cli-cmds.h' include.
	(_initialize_symtab): Create new 'maint flush symbol-cache'
	command, make old command an alias.

gdb/doc/ChangeLog:

	* gdb.texinfo (Symbols): Document 'maint flush symbol-cache'.
	(Maintenance Commands): Document 'maint flush register-cache'.

gdb/testsuite/ChangeLog:

	* gdb.base/c-linkage-name.exp: Update to use new 'maint flush ...'
	commands.
	* gdb.base/killed-outside.exp: Likewise.
	* gdb.opt/inline-bt.exp: Likewise.
	* gdb.perf/gmonster-null-lookup.py: Likewise.
	* gdb.perf/gmonster-print-cerr.py: Likewise.
	* gdb.perf/gmonster-ptype-string.py: Likewise.
	* gdb.python/py-unwind.exp: Likewise.
2020-12-13 12:36:15 +00:00
1f2624a354 Fix Rust regression with -readnow
PR rust/26799 points out that a certain test case fails with -readnow.
This happens because, with -readnow, there are no partial symtabs; but
find_symbol_at_address requires these.

This patch fixes this problem by searching all of an objfile's
compunit symtabs if it does not have partial symbols.

Note that this test will still fail with .gdb_index.  I don't think
that is readily fixable.

gdb/ChangeLog
2020-11-12  Tom Tromey  <tom@tromey.com>

	PR rust/26799:
	* symtab.c (find_symbol_at_address): Search symtabs if no psymtabs
	exist.

gdb/testsuite/ChangeLog
2020-11-12  Tom Tromey  <tom@tromey.com>

	PR rust/26799:
	* gdb.rust/traits.exp: Remove kfails.
2020-11-12 08:47:09 -07:00
dda83cd783 gdb, gdbserver, gdbsupport: fix leading space vs tabs issues
Many spots incorrectly use only spaces for indentation (for example,
there are a lot of spots in ada-lang.c).  I've always found it awkward
when I needed to edit one of these spots: do I keep the original wrong
indentation, or do I fix it?  What if the lines around it are also
wrong, do I fix them too?  I probably don't want to fix them in the same
patch, to avoid adding noise to my patch.

So I propose to fix as much as possible once and for all (hopefully).

One typical counter argument for this is that it makes code archeology
more difficult, because git-blame will show this commit as the last
change for these lines.  My counter counter argument is: when
git-blaming, you often need to do "blame the file at the parent commit"
anyway, to go past some other refactor that touched the line you are
interested in, but is not the change you are looking for.  So you
already need a somewhat efficient way to do this.

Using some interactive tool, rather than plain git-blame, makes this
trivial.  For example, I use "tig blame <file>", where going back past
the commit that changed the currently selected line is one keystroke.
It looks like Magit in Emacs does it too (though I've never used it).
Web viewers of Github and Gitlab do it too.  My point is that it won't
really make archeology more difficult.

The other typical counter argument is that it will cause conflicts with
existing patches.  That's true... but it's a one time cost, and those
are not conflicts that are difficult to resolve.  I have also tried "git
rebase --ignore-whitespace", it seems to work well.  Although that will
re-introduce the faulty indentation, so one needs to take care of fixing
the indentation in the patch after that (which is easy).

gdb/ChangeLog:

	* aarch64-linux-tdep.c: Fix indentation.
	* aarch64-ravenscar-thread.c: Fix indentation.
	* aarch64-tdep.c: Fix indentation.
	* aarch64-tdep.h: Fix indentation.
	* ada-lang.c: Fix indentation.
	* ada-lang.h: Fix indentation.
	* ada-tasks.c: Fix indentation.
	* ada-typeprint.c: Fix indentation.
	* ada-valprint.c: Fix indentation.
	* ada-varobj.c: Fix indentation.
	* addrmap.c: Fix indentation.
	* addrmap.h: Fix indentation.
	* agent.c: Fix indentation.
	* aix-thread.c: Fix indentation.
	* alpha-bsd-nat.c: Fix indentation.
	* alpha-linux-tdep.c: Fix indentation.
	* alpha-mdebug-tdep.c: Fix indentation.
	* alpha-nbsd-tdep.c: Fix indentation.
	* alpha-obsd-tdep.c: Fix indentation.
	* alpha-tdep.c: Fix indentation.
	* amd64-bsd-nat.c: Fix indentation.
	* amd64-darwin-tdep.c: Fix indentation.
	* amd64-linux-nat.c: Fix indentation.
	* amd64-linux-tdep.c: Fix indentation.
	* amd64-nat.c: Fix indentation.
	* amd64-obsd-tdep.c: Fix indentation.
	* amd64-tdep.c: Fix indentation.
	* amd64-windows-tdep.c: Fix indentation.
	* annotate.c: Fix indentation.
	* arc-tdep.c: Fix indentation.
	* arch-utils.c: Fix indentation.
	* arch/arm-get-next-pcs.c: Fix indentation.
	* arch/arm.c: Fix indentation.
	* arm-linux-nat.c: Fix indentation.
	* arm-linux-tdep.c: Fix indentation.
	* arm-nbsd-tdep.c: Fix indentation.
	* arm-pikeos-tdep.c: Fix indentation.
	* arm-tdep.c: Fix indentation.
	* arm-tdep.h: Fix indentation.
	* arm-wince-tdep.c: Fix indentation.
	* auto-load.c: Fix indentation.
	* auxv.c: Fix indentation.
	* avr-tdep.c: Fix indentation.
	* ax-gdb.c: Fix indentation.
	* ax-general.c: Fix indentation.
	* bfin-linux-tdep.c: Fix indentation.
	* block.c: Fix indentation.
	* block.h: Fix indentation.
	* blockframe.c: Fix indentation.
	* bpf-tdep.c: Fix indentation.
	* break-catch-sig.c: Fix indentation.
	* break-catch-syscall.c: Fix indentation.
	* break-catch-throw.c: Fix indentation.
	* breakpoint.c: Fix indentation.
	* breakpoint.h: Fix indentation.
	* bsd-uthread.c: Fix indentation.
	* btrace.c: Fix indentation.
	* build-id.c: Fix indentation.
	* buildsym-legacy.h: Fix indentation.
	* buildsym.c: Fix indentation.
	* c-typeprint.c: Fix indentation.
	* c-valprint.c: Fix indentation.
	* c-varobj.c: Fix indentation.
	* charset.c: Fix indentation.
	* cli/cli-cmds.c: Fix indentation.
	* cli/cli-decode.c: Fix indentation.
	* cli/cli-decode.h: Fix indentation.
	* cli/cli-script.c: Fix indentation.
	* cli/cli-setshow.c: Fix indentation.
	* coff-pe-read.c: Fix indentation.
	* coffread.c: Fix indentation.
	* compile/compile-cplus-types.c: Fix indentation.
	* compile/compile-object-load.c: Fix indentation.
	* compile/compile-object-run.c: Fix indentation.
	* completer.c: Fix indentation.
	* corefile.c: Fix indentation.
	* corelow.c: Fix indentation.
	* cp-abi.h: Fix indentation.
	* cp-namespace.c: Fix indentation.
	* cp-support.c: Fix indentation.
	* cp-valprint.c: Fix indentation.
	* cris-linux-tdep.c: Fix indentation.
	* cris-tdep.c: Fix indentation.
	* darwin-nat-info.c: Fix indentation.
	* darwin-nat.c: Fix indentation.
	* darwin-nat.h: Fix indentation.
	* dbxread.c: Fix indentation.
	* dcache.c: Fix indentation.
	* disasm.c: Fix indentation.
	* dtrace-probe.c: Fix indentation.
	* dwarf2/abbrev.c: Fix indentation.
	* dwarf2/attribute.c: Fix indentation.
	* dwarf2/expr.c: Fix indentation.
	* dwarf2/frame.c: Fix indentation.
	* dwarf2/index-cache.c: Fix indentation.
	* dwarf2/index-write.c: Fix indentation.
	* dwarf2/line-header.c: Fix indentation.
	* dwarf2/loc.c: Fix indentation.
	* dwarf2/macro.c: Fix indentation.
	* dwarf2/read.c: Fix indentation.
	* dwarf2/read.h: Fix indentation.
	* elfread.c: Fix indentation.
	* eval.c: Fix indentation.
	* event-top.c: Fix indentation.
	* exec.c: Fix indentation.
	* exec.h: Fix indentation.
	* expprint.c: Fix indentation.
	* f-lang.c: Fix indentation.
	* f-typeprint.c: Fix indentation.
	* f-valprint.c: Fix indentation.
	* fbsd-nat.c: Fix indentation.
	* fbsd-tdep.c: Fix indentation.
	* findvar.c: Fix indentation.
	* fork-child.c: Fix indentation.
	* frame-unwind.c: Fix indentation.
	* frame-unwind.h: Fix indentation.
	* frame.c: Fix indentation.
	* frv-linux-tdep.c: Fix indentation.
	* frv-tdep.c: Fix indentation.
	* frv-tdep.h: Fix indentation.
	* ft32-tdep.c: Fix indentation.
	* gcore.c: Fix indentation.
	* gdb_bfd.c: Fix indentation.
	* gdbarch.sh: Fix indentation.
	* gdbarch.c: Re-generate
	* gdbarch.h: Re-generate.
	* gdbcore.h: Fix indentation.
	* gdbthread.h: Fix indentation.
	* gdbtypes.c: Fix indentation.
	* gdbtypes.h: Fix indentation.
	* glibc-tdep.c: Fix indentation.
	* gnu-nat.c: Fix indentation.
	* gnu-nat.h: Fix indentation.
	* gnu-v2-abi.c: Fix indentation.
	* gnu-v3-abi.c: Fix indentation.
	* go32-nat.c: Fix indentation.
	* guile/guile-internal.h: Fix indentation.
	* guile/scm-cmd.c: Fix indentation.
	* guile/scm-frame.c: Fix indentation.
	* guile/scm-iterator.c: Fix indentation.
	* guile/scm-math.c: Fix indentation.
	* guile/scm-ports.c: Fix indentation.
	* guile/scm-pretty-print.c: Fix indentation.
	* guile/scm-value.c: Fix indentation.
	* h8300-tdep.c: Fix indentation.
	* hppa-linux-nat.c: Fix indentation.
	* hppa-linux-tdep.c: Fix indentation.
	* hppa-nbsd-nat.c: Fix indentation.
	* hppa-nbsd-tdep.c: Fix indentation.
	* hppa-obsd-nat.c: Fix indentation.
	* hppa-tdep.c: Fix indentation.
	* hppa-tdep.h: Fix indentation.
	* i386-bsd-nat.c: Fix indentation.
	* i386-darwin-nat.c: Fix indentation.
	* i386-darwin-tdep.c: Fix indentation.
	* i386-dicos-tdep.c: Fix indentation.
	* i386-gnu-nat.c: Fix indentation.
	* i386-linux-nat.c: Fix indentation.
	* i386-linux-tdep.c: Fix indentation.
	* i386-nto-tdep.c: Fix indentation.
	* i386-obsd-tdep.c: Fix indentation.
	* i386-sol2-nat.c: Fix indentation.
	* i386-tdep.c: Fix indentation.
	* i386-tdep.h: Fix indentation.
	* i386-windows-tdep.c: Fix indentation.
	* i387-tdep.c: Fix indentation.
	* i387-tdep.h: Fix indentation.
	* ia64-libunwind-tdep.c: Fix indentation.
	* ia64-libunwind-tdep.h: Fix indentation.
	* ia64-linux-nat.c: Fix indentation.
	* ia64-linux-tdep.c: Fix indentation.
	* ia64-tdep.c: Fix indentation.
	* ia64-tdep.h: Fix indentation.
	* ia64-vms-tdep.c: Fix indentation.
	* infcall.c: Fix indentation.
	* infcmd.c: Fix indentation.
	* inferior.c: Fix indentation.
	* infrun.c: Fix indentation.
	* iq2000-tdep.c: Fix indentation.
	* language.c: Fix indentation.
	* linespec.c: Fix indentation.
	* linux-fork.c: Fix indentation.
	* linux-nat.c: Fix indentation.
	* linux-tdep.c: Fix indentation.
	* linux-thread-db.c: Fix indentation.
	* lm32-tdep.c: Fix indentation.
	* m2-lang.c: Fix indentation.
	* m2-typeprint.c: Fix indentation.
	* m2-valprint.c: Fix indentation.
	* m32c-tdep.c: Fix indentation.
	* m32r-linux-tdep.c: Fix indentation.
	* m32r-tdep.c: Fix indentation.
	* m68hc11-tdep.c: Fix indentation.
	* m68k-bsd-nat.c: Fix indentation.
	* m68k-linux-nat.c: Fix indentation.
	* m68k-linux-tdep.c: Fix indentation.
	* m68k-tdep.c: Fix indentation.
	* machoread.c: Fix indentation.
	* macrocmd.c: Fix indentation.
	* macroexp.c: Fix indentation.
	* macroscope.c: Fix indentation.
	* macrotab.c: Fix indentation.
	* macrotab.h: Fix indentation.
	* main.c: Fix indentation.
	* mdebugread.c: Fix indentation.
	* mep-tdep.c: Fix indentation.
	* mi/mi-cmd-catch.c: Fix indentation.
	* mi/mi-cmd-disas.c: Fix indentation.
	* mi/mi-cmd-env.c: Fix indentation.
	* mi/mi-cmd-stack.c: Fix indentation.
	* mi/mi-cmd-var.c: Fix indentation.
	* mi/mi-cmds.c: Fix indentation.
	* mi/mi-main.c: Fix indentation.
	* mi/mi-parse.c: Fix indentation.
	* microblaze-tdep.c: Fix indentation.
	* minidebug.c: Fix indentation.
	* minsyms.c: Fix indentation.
	* mips-linux-nat.c: Fix indentation.
	* mips-linux-tdep.c: Fix indentation.
	* mips-nbsd-tdep.c: Fix indentation.
	* mips-tdep.c: Fix indentation.
	* mn10300-linux-tdep.c: Fix indentation.
	* mn10300-tdep.c: Fix indentation.
	* moxie-tdep.c: Fix indentation.
	* msp430-tdep.c: Fix indentation.
	* namespace.h: Fix indentation.
	* nat/fork-inferior.c: Fix indentation.
	* nat/gdb_ptrace.h: Fix indentation.
	* nat/linux-namespaces.c: Fix indentation.
	* nat/linux-osdata.c: Fix indentation.
	* nat/netbsd-nat.c: Fix indentation.
	* nat/x86-dregs.c: Fix indentation.
	* nbsd-nat.c: Fix indentation.
	* nbsd-tdep.c: Fix indentation.
	* nios2-linux-tdep.c: Fix indentation.
	* nios2-tdep.c: Fix indentation.
	* nto-procfs.c: Fix indentation.
	* nto-tdep.c: Fix indentation.
	* objfiles.c: Fix indentation.
	* objfiles.h: Fix indentation.
	* opencl-lang.c: Fix indentation.
	* or1k-tdep.c: Fix indentation.
	* osabi.c: Fix indentation.
	* osabi.h: Fix indentation.
	* osdata.c: Fix indentation.
	* p-lang.c: Fix indentation.
	* p-typeprint.c: Fix indentation.
	* p-valprint.c: Fix indentation.
	* parse.c: Fix indentation.
	* ppc-linux-nat.c: Fix indentation.
	* ppc-linux-tdep.c: Fix indentation.
	* ppc-nbsd-nat.c: Fix indentation.
	* ppc-nbsd-tdep.c: Fix indentation.
	* ppc-obsd-nat.c: Fix indentation.
	* ppc-ravenscar-thread.c: Fix indentation.
	* ppc-sysv-tdep.c: Fix indentation.
	* ppc64-tdep.c: Fix indentation.
	* printcmd.c: Fix indentation.
	* proc-api.c: Fix indentation.
	* producer.c: Fix indentation.
	* producer.h: Fix indentation.
	* prologue-value.c: Fix indentation.
	* prologue-value.h: Fix indentation.
	* psymtab.c: Fix indentation.
	* python/py-arch.c: Fix indentation.
	* python/py-bpevent.c: Fix indentation.
	* python/py-event.c: Fix indentation.
	* python/py-event.h: Fix indentation.
	* python/py-finishbreakpoint.c: Fix indentation.
	* python/py-frame.c: Fix indentation.
	* python/py-framefilter.c: Fix indentation.
	* python/py-inferior.c: Fix indentation.
	* python/py-infthread.c: Fix indentation.
	* python/py-objfile.c: Fix indentation.
	* python/py-prettyprint.c: Fix indentation.
	* python/py-registers.c: Fix indentation.
	* python/py-signalevent.c: Fix indentation.
	* python/py-stopevent.c: Fix indentation.
	* python/py-stopevent.h: Fix indentation.
	* python/py-threadevent.c: Fix indentation.
	* python/py-tui.c: Fix indentation.
	* python/py-unwind.c: Fix indentation.
	* python/py-value.c: Fix indentation.
	* python/py-xmethods.c: Fix indentation.
	* python/python-internal.h: Fix indentation.
	* python/python.c: Fix indentation.
	* ravenscar-thread.c: Fix indentation.
	* record-btrace.c: Fix indentation.
	* record-full.c: Fix indentation.
	* record.c: Fix indentation.
	* reggroups.c: Fix indentation.
	* regset.h: Fix indentation.
	* remote-fileio.c: Fix indentation.
	* remote.c: Fix indentation.
	* reverse.c: Fix indentation.
	* riscv-linux-tdep.c: Fix indentation.
	* riscv-ravenscar-thread.c: Fix indentation.
	* riscv-tdep.c: Fix indentation.
	* rl78-tdep.c: Fix indentation.
	* rs6000-aix-tdep.c: Fix indentation.
	* rs6000-lynx178-tdep.c: Fix indentation.
	* rs6000-nat.c: Fix indentation.
	* rs6000-tdep.c: Fix indentation.
	* rust-lang.c: Fix indentation.
	* rx-tdep.c: Fix indentation.
	* s12z-tdep.c: Fix indentation.
	* s390-linux-tdep.c: Fix indentation.
	* score-tdep.c: Fix indentation.
	* ser-base.c: Fix indentation.
	* ser-mingw.c: Fix indentation.
	* ser-uds.c: Fix indentation.
	* ser-unix.c: Fix indentation.
	* serial.c: Fix indentation.
	* sh-linux-tdep.c: Fix indentation.
	* sh-nbsd-tdep.c: Fix indentation.
	* sh-tdep.c: Fix indentation.
	* skip.c: Fix indentation.
	* sol-thread.c: Fix indentation.
	* solib-aix.c: Fix indentation.
	* solib-darwin.c: Fix indentation.
	* solib-frv.c: Fix indentation.
	* solib-svr4.c: Fix indentation.
	* solib.c: Fix indentation.
	* source.c: Fix indentation.
	* sparc-linux-tdep.c: Fix indentation.
	* sparc-nbsd-tdep.c: Fix indentation.
	* sparc-obsd-tdep.c: Fix indentation.
	* sparc-ravenscar-thread.c: Fix indentation.
	* sparc-tdep.c: Fix indentation.
	* sparc64-linux-tdep.c: Fix indentation.
	* sparc64-nbsd-tdep.c: Fix indentation.
	* sparc64-obsd-tdep.c: Fix indentation.
	* sparc64-tdep.c: Fix indentation.
	* stabsread.c: Fix indentation.
	* stack.c: Fix indentation.
	* stap-probe.c: Fix indentation.
	* stubs/ia64vms-stub.c: Fix indentation.
	* stubs/m32r-stub.c: Fix indentation.
	* stubs/m68k-stub.c: Fix indentation.
	* stubs/sh-stub.c: Fix indentation.
	* stubs/sparc-stub.c: Fix indentation.
	* symfile-mem.c: Fix indentation.
	* symfile.c: Fix indentation.
	* symfile.h: Fix indentation.
	* symmisc.c: Fix indentation.
	* symtab.c: Fix indentation.
	* symtab.h: Fix indentation.
	* target-float.c: Fix indentation.
	* target.c: Fix indentation.
	* target.h: Fix indentation.
	* tic6x-tdep.c: Fix indentation.
	* tilegx-linux-tdep.c: Fix indentation.
	* tilegx-tdep.c: Fix indentation.
	* top.c: Fix indentation.
	* tracefile-tfile.c: Fix indentation.
	* tracepoint.c: Fix indentation.
	* tui/tui-disasm.c: Fix indentation.
	* tui/tui-io.c: Fix indentation.
	* tui/tui-regs.c: Fix indentation.
	* tui/tui-stack.c: Fix indentation.
	* tui/tui-win.c: Fix indentation.
	* tui/tui-winsource.c: Fix indentation.
	* tui/tui.c: Fix indentation.
	* typeprint.c: Fix indentation.
	* ui-out.h: Fix indentation.
	* unittests/copy_bitwise-selftests.c: Fix indentation.
	* unittests/memory-map-selftests.c: Fix indentation.
	* utils.c: Fix indentation.
	* v850-tdep.c: Fix indentation.
	* valarith.c: Fix indentation.
	* valops.c: Fix indentation.
	* valprint.c: Fix indentation.
	* valprint.h: Fix indentation.
	* value.c: Fix indentation.
	* value.h: Fix indentation.
	* varobj.c: Fix indentation.
	* vax-tdep.c: Fix indentation.
	* windows-nat.c: Fix indentation.
	* windows-tdep.c: Fix indentation.
	* xcoffread.c: Fix indentation.
	* xml-syscall.c: Fix indentation.
	* xml-tdesc.c: Fix indentation.
	* xstormy16-tdep.c: Fix indentation.
	* xtensa-config.c: Fix indentation.
	* xtensa-linux-nat.c: Fix indentation.
	* xtensa-linux-tdep.c: Fix indentation.
	* xtensa-tdep.c: Fix indentation.

gdbserver/ChangeLog:

	* ax.cc: Fix indentation.
	* dll.cc: Fix indentation.
	* inferiors.h: Fix indentation.
	* linux-low.cc: Fix indentation.
	* linux-nios2-low.cc: Fix indentation.
	* linux-ppc-ipa.cc: Fix indentation.
	* linux-ppc-low.cc: Fix indentation.
	* linux-x86-low.cc: Fix indentation.
	* linux-xtensa-low.cc: Fix indentation.
	* regcache.cc: Fix indentation.
	* server.cc: Fix indentation.
	* tracepoint.cc: Fix indentation.

gdbsupport/ChangeLog:

	* common-exceptions.h: Fix indentation.
	* event-loop.cc: Fix indentation.
	* fileio.cc: Fix indentation.
	* filestuff.cc: Fix indentation.
	* gdb-dlfcn.cc: Fix indentation.
	* gdb_string_view.h: Fix indentation.
	* job-control.cc: Fix indentation.
	* signals.cc: Fix indentation.

Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695
2020-11-02 10:28:45 -05:00
1b00ef063f [gdb/symtab] Fix language of frame without debug info
On openSUSE Leap 15.2, I run into this FAIL with target board readnow and
test-case gdb.dwarf2/dw2-align.exp:
...
(gdb) set lang c++^M
Warning: the current language does not match this frame.^M
(gdb) FAIL: gdb.dwarf2/dw2-align.exp: set lang c++
...

Adding some extra debugging shows that the current language differs without
and with readnow:
...
 Breakpoint 1, 0x00000000004004ab in main ()^M
 (gdb) show lang^M
-The current source language is "auto; currently c".^M
+The current source language is "auto; currently asm".^M
...

This is explained by find_pc_compunit_symtab (0x4004ab) called from
select_frame, which:
- without readnow: returns NULL, and
- with readnow: returns the symtab for the CU crtn.S, wich has language
  "MIPS assembler".

In the former case, the symtab for crtn.S is not expanded, and
find_pc_compunit_symtab hits the default NULL return.  In the latter case, the
symtab for crtn.S is expanded, and the "best match" loop in
find_pc_compunit_symtab returns that symtab as its best match.

The GLOBAL_BLOCK for crtn.S has these outer limits of the address range:
...
(gdb) p /x b.startaddr
$6 = 0x4003c2
(gdb) p /x b.endaddr
$7 = 0x40053d
...
and 0x4004ab indeed fits in that range, which explains why the CU is
considered a match.

However, the actual address ranges for the CU are:
...
    00000040 ffffffffffffffff 0000000000000000 (base address)
    00000040 00000000004003c2 00000000004003c7
    00000040 0000000000400538 000000000040053d
    00000040 <End of list>
...
which confirms that the CU should not be considered a match.

The problem is that the "best match" loop is based on the assumption that a
symtab with a better match will be found, but in this case we don't find a
better match because there's no debug info describing main.

Fix this by preferring to use the addres map in the "best match" loop, which
will accurately tell us that addrmap_find (bv.map, 0x4004ab) == NULL.

Tested on x86_64-linux (that is, openSUSE Leap 15.2), with and without
readnow.  In the case of a readnow run, brings down the number of unexpected
failures from 66 to 38.

The FAIL does not reproduce on f.i. Ubuntu 18.04.5, because there the exec
does not contain debug info for crtn.S.  The dwarf assembly test-case mimics
the scenario described above, and reproduces the FAIL with and without
-readnow, for both mentioned OS configurations.

Also fixes PR25980 - "Overlapping Dwarf Compile Units with non-overlapping
subranges gives incorrect line information".

gdb/ChangeLog:

2020-10-28  Tom de Vries  <tdevries@suse.de>

	PR symtab/26772
	* symtab.c (find_pc_sect_compunit_symtab): In case there's an address
	map, check it in the "best match" loop.

gdb/testsuite/ChangeLog:

2020-10-28  Tom de Vries  <tdevries@suse.de>

	PR symtab/26772
	* gdb.dwarf2/dw2-ranges-overlap.c: New test.
	* gdb.dwarf2/dw2-ranges-overlap.exp: New file.
2020-10-28 21:04:12 +01:00
bd24c5d65b [gdb/testsuite] Fix section matching in find_pc_sect_compunit_symtab
When running test-case gdb.base/list-ambiguous.exp with target board readnow,
we run into:
...
FAIL: gdb.base/list-ambiguous.exp: list ambiguous_fun
...

The test-case contains two static functions ambiguous_fun, one in
list-ambiguous0.c and one in list-ambiguous1.c.

The list command is supposed to show both, but only the one from
list-ambiguous0.c is shown.

This is due to the section check in find_pc_sect_compunit_symtab.  It checks
whether the candidate compunit_symtab contains a symbol that has the required
section.  This check is only done for GLOBAL_BLOCK symbols.

The check succeeds for the compunit_symtab for list-ambiguous0.c, because it
contains main, but it fails for list-ambiguous0.c because it has no global
symbols.

Fix this by extending the section check to STATIC_BLOCK symbols.

Tested on x86_64-linux.

gdb/ChangeLog:

2020-10-27  Tom de Vries  <tdevries@suse.de>

	* symtab.c (find_pc_sect_compunit_symtab): Include STATIC_BLOCK
	symbols in section check.

gdb/testsuite/ChangeLog:

2020-10-27  Tom de Vries  <tdevries@suse.de>

	* gdb.base/list-ambiguous-readnow.exp: New file.
2020-10-27 13:28:27 +01:00
61eb46a4fb [gdb/symtab] Use early continue in find_pc_sect_compunit_symtab
Function find_pc_sect_compunit_symtab contains a loop:
...
  for (compunit_symtab *cust : obj_file->compunits ())
    {
      ...
      if (...)
        {
          /* Lots of code.  */
        }
    }
...

Reduce indentation level and improve readability by using early continue.

Tested on x86_64-linux.

gdb/ChangeLog:

2020-10-27  Tom de Vries  <tdevries@suse.de>

	* symtab.c (find_pc_sect_compunit_symtab): Use early continue.
2020-10-27 13:28:27 +01:00
31a8f60f2f gdb: handle unmapped overlays in find_pc_line
I configured and built an m32r-elf toolchain, and ran the
gdb.base/overlays.exp test.  I saw a couple of errors where GDB would
place a breakpoint in the wrong place when placing a breakpoint using
a function name, for example in this function:

/* 1 */  int foo (int x)
/* 2 */  {
/* 3 */    if (x)
/* 4 */      return some_global_variable;
/* 5 */    else
/* 6 */      return 0;
/* 7 */  }

GDB would place the breakpoint on line 2 instead of line 3.  The issue
is that GDB was failing to skip the prologue correctly.

The reason for this is that in m32r-tdep.c:m32r_skip_prologue, we
first use find_pc_partial_function to find the functions start and end
addresses, then we use find_pc_line to find the start and end of the
first line of the function.

Currently, if the pc value passed to find_pc_partial_function is in an
unmapped overlay then the function start and end addresses that are
returned are also the unmapped addresses.

However, this is not the case for find_pc_line, here, if the address
passed in is in an unmapped overlay then we still get back a
symtab_and_line describing the mapped location.

What this means is that if a function's mapped location is 0x100 ->
0x120, and its unmapped locations is 0x400 -> 0x420 then we think that
the start/end is 0x400 and 0x420 respectively, but the first line
might run from 0x100 to 0x108.

GDB will then try to scan the prologue starting from 0x400 and ending
at 0x108, this immediately gives up as it thinks we have gone past the
end of the prologue and the breakpoint is placed at 0x400.

In this commit I propose that we change find_pc_line to return
addresses in the unmapped range if the address passed in is already in
the unmapped range.  Now the first line will appear to run from 0x400
to 0x408 and the prologue scanner will correctly find the end of the
prologue.

With this commit gdb.base/overlays.exp now completely passes with an
m32r-elf toolchain.

gdb/ChangeLog:

	* symtab.c (find_pc_line): Return unmapped addresses when the
	requested address is also unmapped.
2020-10-06 11:18:37 +01:00
1ac14a0402 gdb: Convert language_data::la_macro_expansion to a method
Convert language_data::la_macro_expansion member variable to a virtual
method language_defn::macro_expansion.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_language_data): Remove la_macro_expansion
	initializer.
	* c-lang.c (c_language_data): Likewise.
	(c_language::macro_expansion): New member function.
	(cplus_language_data): Likewise.
	(cplus_language::macro_expansion): New member function.
	(asm_language_data): Likewise.
	(asm_language::macro_expansion): New member function.
	(minimal_language_data): Likewise.
	(minimal_language::macro_expansion): New member function.
	* d-lang.c (d_language_data): Remove la_macro_expansion
	initializer.
	* f-lang.c (f_language_data): Likewise.
	* go-lang.c (go_language_data): Likewise.
	* language.c (unknown_language_data): Likewise.
	(auto_language_data): Likewise.
	* language.h (language_data): Remove la_macro_expansion field.
	(language_defn::macro_expansion): New member function.
	* m2-lang.c (m2_language_data): Remove la_macro_expansion
	initializer.
	* objc-lang.c (objc_language_data): Likewise.
	(objc_language::macro_expansion): New member function.
	* opencl-lang.c (opencl_language_data): Likewise.
	(opencl_language::macro_expansion): New member function.
	* p-lang.c (pascal_language_data): Remove la_macro_expansion
	initializer.
	* rust-lang.c (rust_language_data): Likewise.
	* symtab.c (default_collect_symbol_completion_matches_break_on):
	Update call to macro_expansion.
2020-09-16 11:04:03 +01:00
6f7664a9c3 gdb: Convert la_name and la_natural_name to methods
Convert the two language_data member variables la_name and
la_natural_name to virtual methods in language_defn struct called name
and natural_name respectively.

The virtual methods in the language_defn base class are pure virtual,
as every language must implement these, and as every language has a
unique name there's no sensible default here.

Given that every language must implement these methods I did wonder
about making this data passed into the base class constructor, but in
the end I went with the virtual method approach.  I'm open to changing
this approach if people prefer the constructor approach.

During updating the calls to language_defn::name I found in
add_set_language_command a place where we took la_name and then
capitalised the first letter to create a language name that could be
used in the documentation string.  I replaced this with a use of
natural_name instead as this seemed a better choice, in most cases
this will make no difference, as for most languages the natural_name
is just the name with the first character in upper case, but for some
languages, for example 'Open-CL' and 'Objective-C' this is not the
case.

In the case of asm_language the name is 'asm', while the natural_name
was previously 'assembly'.  I changed the natural name to 'Assembly',
this makes the documentation string case above cleaner, however, this
will change the MI output for -var-info-expression, where the 'lang'
field will change from 'assembly' to 'Assembly'.  It is possible this
could be a breaking change if a front-end is relying on the existing
name.

gdb/ChangeLog:

	* ada-lang.c (ada_language_data): Remove la_name and
	la_natural_name initializers.
	(ada_language::name): New member function.
	(ada_language::natural_name): New member function.
	* c-lang.c (c_language_data): Remove la_name and
	la_natural_name initializers.
	(c_language::name): New member function.
	(c_language::natural_name): New member function.
	(cplus_language_data): Remove la_name and
	la_natural_name initializers.
	(cplus_language::name): New member function.
	(cplus_language::natural_name): New member function.
	(asm_language_data): Remove la_name and
	la_natural_name initializers.
	(asm_language::name): New member function.
	(asm_language::natural_name): New member function.
	(minimal_language_data): Remove la_name and
	la_natural_name initializers.
	(minimal_language::name): New member function.
	(minimal_language::natural_name): New member function.
	* compile/compile.c (compile_to_object): Update call to
	lanugage_defn::name.
	* d-lang.c (d_language_data): Remove la_name and
	la_natural_name initializers.
	(d_language::name): New member function.
	(d_language::natural_name): New member function.
	* expprint.c (print_subexp_standard): Update call to
	language_defn::name.
	(dump_raw_expression): Likewise
	(dump_prefix_expression): Likewise.
	* f-lang.c (f_language_data): Remove la_name and
	la_natural_name initializers.
	(f_language::name): New member function.
	(f_language::natural_name): New member function.
	* go-lang.c (go_language_data): Remove la_name and
	la_natural_name initializers.
	(go_language::name): New member function.
	(go_language::natural_name): New member function.
	* language.c (show_language_command): Update call to
	language_defn::name.
	(set_language_command): Likewise.
	(language_enum): Likewise.
	(language_str): Likewise.
	(add_set_language_command): Likewise, use
	language_defn::natural_name in the doc string.
	(unknown_language_data): Remove la_name and
	la_natural_name initializers.
	(unknown_language::name): New member function.
	(unknown_language::natural_name): New member function.
	(auto_language_data): Remove la_name and
	la_natural_name initializers.
	(auto_language::name): New member function.
	(auto_language::natural_name): New member function.
	(language_lookup_primitive_type_as_symbol): Update call to
	language_defn::name.
	* language.h (language_data): Remove la_name and la_natural_name
	member variables.
	(language_defn::name): New member function.
	(language_defn::natural_name): New member function.
	* m2-lang.c (m2_language_data): Remove la_name and
	la_natural_name initializers.
	(m2_language::name): New member function.
	(m2_language::natural_name): New member function.
	* mi/mi-cmd-var.c (mi_cmd_var_info_expression): Update call to
	language_defn::natural_name.
	* objc-lang.c (objc_language_data): Remove la_name and
	la_natural_name initializers.
	(objc_language::name): New member function.
	(objc_language::natural_name): New member function.
	* opencl-lang.c (opencl_language_data): Remove la_name and
	la_natural_name initializers.
	(opencl_language::name): New member function.
	(opencl_language::natural_name): New member function.
	* p-lang.c (pascal_language_data): Remove la_name and
	la_natural_name initializers.
	(pascal_language::name): New member function.
	(pascal_language::natural_name): New member function.
	* rust-lang.c (rust_language_data): Remove la_name and
	la_natural_name initializers.
	(rust_language::name): New member function.
	(rust_language::natural_name): New member function.
	* symtab.c (lookup_language_this): Update call to
	language_defn::name.
2020-09-16 10:16:45 +01:00
5bae7c4e04 gdb: Convert la_name_of_this to a method
Convert language_data::la_name_of_this member variable to a virtual
method language_defn::name_of_this.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_language_data): Remove la_name_of_this
	initializer.
	* ax-gdb.c (gen_expr): Update call to name_of_this.
	* c-exp.y (classify_name): Likewise.
	* c-lang.c (c_language_data): Remove la_name_of_this initializer.
	(cplus_language_data): Likewise.
	(cplus_language::name_of_this): New member function.
	(asm_language_data): Remove la_name_of_this initializer.
	(minimal_language_data): Likewise.
	* d-lang.c (d_language_data): Likewise.
	(d_language::name_of_this): New member function.
	* expprint.c (print_subexp_standard): Update call to name_of_this.
	* f-lang.c (f_language_data): Remove la_name_of_this initializer.
	* go-lang.c (go_language_data): Likewise.
	* language.c (unknown_language_data): Likewise.
	(unknown_language::name_of_this): New member function.
	(auto_language_data): Remove la_name_of_this initializer.
	(auto_language::name_of_this): New member function.
	* language.h (language_data): Delete la_name_of_this member
	variable.
	(language_defn::name_of_this): New member function.
	* m2-lang.c (m2_language_data): Remove la_name_of_this
	initializer.
	* objc-lang.c (objc_language_data): Likewise.
	(objc_language::name_of_this): New member function.
	* opencl-lang.c (opencl_language_data): Remove la_name_of_this
	initializer.
	* p-lang.c (pascal_language_data): Likewise.
	(pascal_language::name_of_this): New member function.
	* rust-lang.c (rust_language_data): Remove la_name_of_this
	initializer.
	* symtab.c (lookup_language_this): Update call to name_of_this.
	(lookup_symbol_aux): Likewise.
	* valops.c (value_of_this): Likewise.
2020-09-16 10:16:45 +01:00
d8cc8af6a1 [gdb/symtab] Fix line-table end-of-sequence sorting
Consider test-case gdb.dwarf2/dw2-ranges-base.exp.  It has (ignoring
non-sensical entries that are filtered out by buildsym_compunit::record_line)
a line-table for dw2-ranges-base.c like this:
...
 Line Number Statements:
  [0x0000014e]  Extended opcode 2: set Address to 0x4004ba
  [0x00000159]  Advance Line by 10 to 11
  [0x0000015b]  Copy
  [0x0000015c]  Advance PC by 12 to 0x4004c6
  [0x0000015e]  Extended opcode 1: End of Sequence

  [0x00000161]  Extended opcode 2: set Address to 0x4004ae
  [0x0000016c]  Advance Line by 20 to 21
  [0x0000016e]  Copy
  [0x0000016f]  Advance PC by 12 to 0x4004ba
  [0x00000171]  Extended opcode 1: End of Sequence

  [0x00000174]  Extended opcode 2: set Address to 0x4004a7
  [0x0000017f]  Advance Line by 30 to 31
  [0x00000181]  Copy
  [0x00000182]  Advance PC by 7 to 0x4004ae
  [0x00000184]  Extended opcode 1: End of Sequence
...

If we disable the sorting in buildsym_compunit::end_symtab_with_blockvector,
we have the unsorted line table:
...
INDEX  LINE   ADDRESS            IS-STMT
0      11     0x00000000004004ba Y
1      END    0x00000000004004c6 Y
2      21     0x00000000004004ae Y
3      END    0x00000000004004ba Y
4      31     0x00000000004004a7 Y
5      END    0x00000000004004ae Y
...
It contains 3 sequences, 11/END, 21/END and 31/END.

We want to sort the 3 sequences relative to each other, while sorting on
address, to get:
...
INDEX  LINE   ADDRESS            IS-STMT
0      31     0x00000000004004a7 Y
1      END    0x00000000004004ae Y
2      21     0x00000000004004ae Y
3      END    0x00000000004004ba Y
4      11     0x00000000004004ba Y
5      END    0x00000000004004c6 Y
...

However, if we re-enable the sorting, we have instead:
...
INDEX  LINE   ADDRESS            IS-STMT
0      31     0x00000000004004a7 Y
1      21     0x00000000004004ae Y
2      END    0x00000000004004ae Y
3      11     0x00000000004004ba Y
4      END    0x00000000004004ba Y
5      END    0x00000000004004c6 Y
...

This is a regression since commit 3d92a3e313 "gdb: Don't reorder line table
entries too much when sorting", that introduced sorting on address while
keeping entries with the same address in pre-sort order.

Indeed the entries 1 and 2 are in pre-sort order (they map to entries 2 and 5
in the unsorted line table), but entry 1 does not belong in the sequence
terminated by 2.

Fix this by handling End-Of-Sequence entries in the sorting function, such
that they are sorted before other entries with the same address.

Also, revert the find_pc_sect_line workaround introduced in commit 3d92a3e313,
since that's no longer necessary.

Tested on x86_64-linux.

gdb/ChangeLog:

2020-07-06  Tom de Vries  <tdevries@suse.de>

	* buildsym.c (buildsym_compunit::end_symtab_with_blockvector): Handle
	End-Of-Sequence in lte_is_less_than.
	* symtab.c (find_pc_sect_line): Revert change from commit 3d92a3e313
	"gdb: Don't reorder line table entries too much when sorting".

gdb/testsuite/ChangeLog:

2020-07-06  Tom de Vries  <tdevries@suse.de>

	* gdb.dwarf2/dw2-ranges-base.exp: Test line-table order.
2020-07-06 14:28:58 +02:00
a78a19b152 gdb: Convert language la_lookup_symbol_nonlocal field to a method
This commit changes the language_data::la_lookup_symbol_nonlocal
function pointer member variable into a member function of
language_defn.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_lookup_symbol_nonlocal): Rename to
	ada_language::lookup_symbol_nonlocal.
	(ada_language_data): Delete la_lookup_symbol_nonlocal initializer.
	(ada_language::lookup_symbol_nonlocal): New member function,
	implementation from ada_lookup_symbol_nonlocal.
	* c-lang.c (c_language_data): Delete la_lookup_symbol_nonlocal
	initializer.
	(cplus_language_data): Delete la_lookup_symbol_nonlocal
	initializer.
	(cplus_language::lookup_symbol_nonlocal): New member function.
	(asm_language_data): Delete la_lookup_symbol_nonlocal initializer.
	(minimal_language_data) Likewise.
	* cp-namespace.c (cp_lookup_nested_symbol): Update comment.
	* d-lang.c (d_language_data): Delete la_lookup_symbol_nonlocal
	initializer.
	(d_language::lookup_symbol_nonlocal): New member function.
	* f-lang.c (f_language_data): Delete la_lookup_symbol_nonlocal
	initializer.
	(f_language::lookup_symbol_nonlocal): New member function.
	* go-lang.c (go_language_data): Delete la_lookup_symbol_nonlocal
	initializer.
	* language.c (unknown_language_data): Likewise.
	(auto_language_data): Likewise.
	* language.h (language_data): Delete la_lookup_symbol_nonlocal
	field.
	(language_defn::lookup_symbol_nonlocal): New member function.
	* m2-lang.c (m2_language_data): Delete la_lookup_symbol_nonlocal
	initializer.
	* objc-lang.c (objc_language_data): Likewise.
	* opencl-lang.c (opencl_language_data): Likewise.
	* p-lang.c (pascal_language_data): Likewise.
	* rust-lang.c (rust_lookup_symbol_nonlocal): Rename to
	rust_language::lookup_symbol_nonlocal.
	(rust_language_data): Delete la_lookup_symbol_nonlocal
	initializer.
	(rust_language::lookup_symbol_nonlocal): New member function,
	implementation from rust_lookup_symbol_nonlocal.
	* symtab.c (lookup_symbol_aux): Update call to
	lookup_symbol_nonlocal.
	(basic_lookup_symbol_nonlocal): Rename to...
	(language_defn::lookup_symbol_nonlocal): ...this, and update
	header comment.  Remove language_defn parameter, and replace with
	uses of `this'.
	* symtab.h (basic_lookup_symbol_nonlocal): Delete declaration.
2020-06-17 09:25:12 +01:00
7e56227dff gdb: Convert language la_collect_symbol_completion_matches field to a method
This commit changes the
language_data::la_collect_symbol_completion_matches function pointer
member variable into a member function of language_defn.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_collect_symbol_completion_matches): Rename to
	ada_language::collect_symbol_completion_matches.
	(ada_language_data): Delete la_collect_symbol_completion_matches
	initializer.
	(ada_language::collect_symbol_completion_matches): New member
	function, implementation from
	ada_collect_symbol_completion_matches.
	* c-lang.c (c_language_data): Delete
	la_collect_symbol_completion_matches initializer.
	(cplus_language_data): Likewise.
	(asm_language_data): Likewise.
	(minimal_language_data): Likewise.
	* d-lang.c (d_language_data): Likewise.
	* f-lang.c (f_collect_symbol_completion_matches): Rename to
	f_language::collect_symbol_completion_matches.
	(f_language_data): Delete la_collect_symbol_completion_matches
	initializer.
	(f_language::collect_symbol_completion_matches) New member
	function, implementation from f_collect_symbol_completion_matches.
	* go-lang.c (go_language_data): Delete
	la_collect_symbol_completion_matches initializer.
	* language.c (unknown_language_data): Likewise.
	(auto_language_data): Likewise.
	* language.h (language_data): Delete
	la_collect_symbol_completion_matches field.
	(language_defn::collect_symbol_completion_matches): New member
	function.
	* m2-lang.c (m2_language_data): Delete
	la_collect_symbol_completion_matches initializer.
	* objc-lang.c (objc_language_data): Likewise.
	* opencl-lang.c (opencl_language_data): Likewise.
	* p-lang.c (pascal_language_data): Likewise.
	* rust-lang.c (rust_language_data): Likewise.
	* symtab.c (default_collect_symbol_completion_matches): Delete.
	(collect_symbol_completion_matches): Update call to
	collect_symbol_completion_matches.
	(collect_symbol_completion_matches_type): Likewise.
	* symtab.h (default_collect_symbol_completion_matches): Delete
	declaration.
2020-06-17 09:25:10 +01:00
c9debfb97e gdb: Convert language la_get_symbol_name_matcher field to a method
This commit changes the language_data::la_get_symbol_name_matcher
function pointer member variable into a member function of
language_defn.

There should be no user visible changes after this commit.

Before this commit access to the la_get_symbol_name_matcher function
pointer was through the get_symbol_name_matcher function, which looked
something like this (is pseudo-code):

  <return-type>
  get_symbol_name_matcher (language_defn *lang, <other args>)
  {
    if (current_language == ada)
      current_language->la_get_symbol_name_matcher (<other args>);
    else
      lang->la_get_symbol_name_matcher (<other args>);
  }

In this commit I moved the get_symbol_name_matcher as a non-virtual
function in the language_defn base class, I then add a new virtual
method that is only used from within get_symbol_name_matcher, this can
then be overridden by specific languages as needed.  So we now have:

  class language_defn
  {
    <return-type> get_symbol_name_matcher (<args>)
    {
      if (current_language == ada)
        return current_language->get_symbol_name_matcher_inner (<args>);
      else
        return this->get_symbol_name_matcher_inner (<args>);
    }

    virtual <return-type> get_symbol_name_matcher_inner (<args>)
    {
        ....
    }
  }

gdb/ChangeLog:

	* ada-lang.c (ada_get_symbol_name_matcher): Update header comment.
	(ada_language_data): Delete la_get_symbol_name_matcher
	initializer.
	(language_defn::get_symbol_name_matcher_inner): New member
	function.
	* c-lang.c (c_language_data): Delete la_get_symbol_name_matcher
	initializer.
	(cplus_language_data): Likewise.
	(cplus_language::get_symbol_name_matcher_inner): New member
	function.
	(asm_language_data): Delete la_get_symbol_name_matcher initializer.
	(minimal_language_data): Likewise.
	* cp-support.h (cp_get_symbol_name_matcher): Update header comment.
	* d-lang.c (d_language_data): Delete la_get_symbol_name_matcher
	initializer.
	* dictionary.c (iter_match_first_hashed): Update call to
	get_symbol_name_matcher.
	(iter_match_next_hashed): Likewise.
	(iter_match_next_linear): Likewise.
	* dwarf2/read.c (dw2_expand_symtabs_matching_symbol): Likewise.
	* f-lang.c (f_language_data): Delete la_get_symbol_name_matcher
	initializer.
	(f_language::get_symbol_name_matcher_inner): New member function.
	* go-lang.c (go_language_data): Delete la_get_symbol_name_matcher
	initializer.
	* language.c (default_symbol_name_matcher): Update header comment,
	make static.
	(language_defn::get_symbol_name_matcher): New definition.
	(language_defn::get_symbol_name_matcher_inner): Likewise.
	(get_symbol_name_matcher): Delete.
	(unknown_language_data): Delete la_get_symbol_name_matcher
	initializer.
	(auto_language_data): Likewise.
	* language.h (language_data): Delete la_get_symbol_name_matcher
	field.
	(language_defn::get_symbol_name_matcher): New member function.
	(language_defn::get_symbol_name_matcher_inner): Likewise.
	(default_symbol_name_matcher): Delete declaration.
	* linespec.c (find_methods): Update call to
	get_symbol_name_matcher.
	* m2-lang.c (m2_language_data): Delete la_get_symbol_name_matcher
	initializer.
	* minsyms.c (lookup_minimal_symbol): Update call to
	get_symbol_name_matcher.
	(iterate_over_minimal_symbols): Likewise.
	* objc-lang.c (objc_language_data): Delete
	la_get_symbol_name_matcher initializer.
	* opencl-lang.c (opencl_language_data): Likewise.
	* p-lang.c (pascal_language_data): Likewise.
	* psymtab.c (psymbol_name_matches): Update call to
	get_symbol_name_matcher.
	* rust-lang.c (rust_language_data): Delete
	la_get_symbol_name_matcher initializer.
	* symtab.c (symbol_matches_search_name): Update call to
	get_symbol_name_matcher.
	(compare_symbol_name): Likewise.
2020-06-17 09:25:09 +01:00
2c074f4902 Handle Windows drives in rbreak paths
Fixes this testsuite fail on Windows:
FAIL: gdb.base/fullpath-expand.exp: rbreak XXX/fullpath-expand-func.c:func

If the found colon is actually part of a Windows drive, look for another.

gdb/ChangeLog:

2020-06-14  Hannes Domani  <ssbssa@yahoo.de>

	* symtab.c (rbreak_command): Ignore Windows drive colon.
2020-06-14 17:38:23 +02:00
6f8270197a gdb: Convert language la_sniff_from_mangled_name field to a method
This commit changes the language_data::la_sniff_from_mangled_name
function pointer member variable into a member function of
language_defn.

Previously the la_sniff_from_mangled_name pointer was NULL for some
languages, however, all uses of this function pointer were through the
function language_sniff_from_mangled_name which provided a default
implementation.

This default implementation now becomes the implementation in the base
class language_defn, which is then overridden as required in various
language sub-classes.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_sniff_from_mangled_name): Delete function,
	implementation moves to...
	(ada_language::sniff_from_mangled_name): ...here.  Update return
	type.
	(ada_language_data): Delete la_sniff_from_mangled_name
	initializer.
	* c-lang.c (c_language_data): Likewise.
	(cplus_language_data): Likewise.
	(cplus_language::sniff_from_mangled_name): New member function,
	implementation taken from gdb_sniff_from_mangled_name.
	(asm_language_data): Delete la_sniff_from_mangled_name
	initializer.
	(minimal_language_data): Likewise.
	* cp-support.c (gdb_sniff_from_mangled_name): Delete,
	implementation moves to cplus_language::sniff_from_mangled_name.
	* cp-support.h (gdb_sniff_from_mangled_name): Delete declaration.
	* d-lang.c (d_sniff_from_mangled_name): Delete, implementation
	moves to...
	(d_language::sniff_from_mangled_name): ...here.
	(d_language_data): Delete la_sniff_from_mangled_name initializer.
	* f-lang.c (f_language_data): Likewise.
	* go-lang.c (go_sniff_from_mangled_name): Delete, implementation
	moves to...
	(go_language::sniff_from_mangled_name): ...here.
	(go_language_data): Delete la_sniff_from_mangled_name initializer.
	* language.c (language_sniff_from_mangled_name): Delete.
	(unknown_language_data): Delete la_sniff_from_mangled_name
	initializer.
	(auto_language_data): Likewise.
	* language.h (language_data): Delete la_sniff_from_mangled_name
	field.
	(language_defn::sniff_from_mangled_name): New function.
	(language_sniff_from_mangled_name): Delete declaration.
	* m2-lang.c (m2_language_data): Delete la_sniff_from_mangled_name
	field.
	* objc-lang.c (objc_sniff_from_mangled_name): Delete,
	implementation moves to...
	(objc_language::sniff_from_mangled_name): ...here.
	(objc_language_data): Delete la_sniff_from_mangled_name initializer.
	* opencl-lang.c (opencl_language_data): Likewise.
	* p-lang.c (pascal_language_data): Likewise.
	* rust-lang.c (rust_sniff_from_mangled_name): Delete,
	implementation moves to...
	(rust_language::sniff_from_mangled_name): ...here.
	(rust_language_data): Delete la_sniff_from_mangled_name
	initializer.
	* symtab.c (symbol_find_demangled_name): Call
	sniff_from_mangled_name member function.
2020-06-02 13:53:11 +01:00
fb8006fd35 gdb: Convert language la_search_name_hash field to a method
This commit changes the language_data::la_search_name_hash
function pointer member variable into a member function of
language_defn.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_language_data): Delete la_search_name_hash
	initializer.
	* c-lang.c (c_language_data): Likewise.
	(cplus_language_data): Likewise.
	(cplus_language::search_name_hash): New member function.
	(asm_language_data): Delete la_search_name_hash initializer.
	(minimal_language_data): Likewise.
	* d-lang.c (d_language_data): Likewise.
	* dictionary.c (default_search_name_hash): Rename to...
	(language_defn::search_name_hash): ...this.
	* f-lang.c (f_language_data): Likewise.
	(f_language::search_name_hash): New member function.
	* go-lang.c (go_language_data): Delete la_search_name_hash
	initializer.
	* language.c (unknown_language_data): Likewise.
	(auto_language_data): Likewise.
	* language.h (struct language_data): Delete la_search_name_hash
	field.
	(language_defn::search_name_hash): Declare new member function.
	(default_search_name_hash): Delete declaration.
	* m2-lang.c (m2_language_data): Delete la_search_name_hash
	initializer.
	* objc-lang.c (objc_language_data): Likewise.
	* opencl-lang.c (opencl_language_data): Likewise.
	* p-lang.c (pascal_language_data): Likewise.
	* rust-lang.c (rust_language_data): Likewise.
	* symtab.c (search_name_hash): Update call.
2020-06-02 13:53:10 +01:00
54f4ca4610 gdb: Convert language la_lookup_transparent_type field to a method
This commit changes the language_data::la_lookup_transparent_type
function pointer member variable into a member function of
language_defn.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_language_data): Delete
	la_lookup_transparent_type initializer.
	* c-lang.c (c_language_data): Likewise.
	(cplus_language_data): Likewise.
	(cplus_language::lookup_transparent_type): New member function.
	(asm_language_data): Delete la_lookup_transparent_type
	initializer.
	(minimal_language_data): Likewise.
	* d-lang.c (d_language_data): Likewise.
	* f-lang.c (f_language_data): Likewise.
	* go-lang.c (go_language_data): Likewise.
	* language.c (unknown_language_data): Likewise.
	(auto_language_data): Likewise.
	* language.h (struct language_data): Delete
	la_lookup_transparent_type field.
	(language_defn::lookup_transparent_type): New member function.
	* m2-lang.c (m2_language_data): Delete la_lookup_transparent_type
	initializer.
	* objc-lang.c (objc_language_data): Likewise.
	* opencl-lang.c (opencl_language_data): Likewise.
	* p-lang.c (pascal_language_data): Likewise.
	* rust-lang.c (rust_language_data): Likewise.
	* symtab.c (symbol_matches_domain): Update call.
2020-06-02 13:53:10 +01:00
e08bd6c508 Don't remove C++ aliases from completions if symbol doesn't match
completion_list_add_symbol currently tries to remove C++ function
aliases from the completions match list even if the symbol passed down
wasn't successfully added to the completion list because it didn't
match.  I.e., we call cp_canonicalize_string_no_typedefs for each and
every C++ function in the program, which is useful work.  This patch
skips that useless work.

gdb/ChangeLog:
2020-05-24  Pedro Alves  <palves@redhat.com>

	* symtab.c (completion_list_add_name): Return boolean indication
	of whether the symbol matched.
	(completion_list_add_symbol): Don't try to remove C++ aliases if
	the symbol didn't match in the first place.
	* symtab.h (completion_list_add_name): Return bool.
2020-05-24 13:32:25 +01:00
ceacbf6edf gdb: remove TYPE_FIELD macro
Replace all uses of it by type::field.

Note that since type::field returns a reference to the field, some spots
are used to assign the whole field structure.  See ctfread.c, function
attach_fields_to_type, for example.  This is the same as was happening
with the macro, so I don't think it's a problem, but if anybody sees a
really nicer way to do this, now could be a good time to implement it.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_FIELD): Remove.  Replace all uses with
	type::field.
2020-05-23 17:39:54 -04:00
1f704f761b gdb: remove TYPE_NFIELDS macro
Remove `TYPE_NFIELDS`, changing all the call sites to use
`type::num_fields` directly.  This is quite a big diff, but this was
mostly done using sed and coccinelle.  A few call sites were done by
hand.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_NFIELDS): Remove.  Change all cal sites to use
	type::num_fields instead.

Change-Id: Ib73be4c36f9e770e0f729bac3b5257d7cb2f9591
2020-05-22 16:55:15 -04:00
7d93a1e0b6 gdb: remove TYPE_NAME macro
Remove `TYPE_NAME`, changing all the call sites to use `type::name`
directly.  This is quite a big diff, but this was mostly done using sed
and coccinelle.  A few call sites were done by hand.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_NAME): Remove.  Change all cal sites to use
	type::name instead.
2020-05-16 12:36:05 -04:00
d6bc0792ed Remove lookup_objfile_from_block
lookup_objfile_from_block mostly duplicates the functionality of
block_objfile, but in a less efficient way.  This patch removes this
function and changes the callers to use block_objfile instead.

Tested by the buildbot.

gdb/ChangeLog
2020-05-15  Tom Tromey  <tom@tromey.com>

	* symtab.c (lookup_language_this, lookup_symbol_aux): Use
	block_objfile.
	(lookup_objfile_from_block): Remove.
	(lookup_symbol_in_block, lookup_symbol_in_static_block)
	(lookup_global_symbol): Use block_objfile.
	* symtab.h (lookup_objfile_from_block): Don't declare.
	* printcmd.c (clear_dangling_display_expressions): Use
	block_objfile.
	* parse.c (operator_check_standard): Use block_objfile.
2020-05-15 16:24:07 -06:00
8c14c3a373 Remove allocate_symbol et al
This removes allocate_symbol, allocate_template_symbol, and
initialize_objfile_symbol in favor of changing the default values for
symbol members, and updating the one per-arch caller.

gdb/ChangeLog
2020-05-15  Tom Tromey  <tom@tromey.com>

	* language.c (language_alloc_type_symbol): Set
	SYMBOL_SECTION.
	* symtab.c (initialize_objfile_symbol): Remove.
	(allocate_symbol): Remove.
	(allocate_template_symbol): Remove.
	* dwarf2/read.c (fixup_go_packaging): Use "new".
	(new_symbol): Use "new".
	(read_variable): Don't call initialize_objfile_symbol.  Use
	"new".
	(read_func_scope): Use "new".
	* xcoffread.c (process_xcoff_symbol): Don't call
	initialize_objfile_symbol.
	(SYMBOL_DUP): Remove.
	* coffread.c (process_coff_symbol, coff_read_enum_type): Use
	"new".
	* symtab.h (allocate_symbol, initialize_objfile_symbol)
	(allocate_template_symbol): Don't declare.
	(struct symbol): Add copy constructor.  Change defaults.
	* jit.c (finalize_symtab): Use "new".
	* ctfread.c (ctf_add_enum_member_cb, new_symbol, ctf_add_var_cb):
	Use "new".
	* stabsread.c (patch_block_stabs, define_symbol, read_enum_type)
	(common_block_end): Use "new".
	* mdebugread.c (parse_symbol): Use "new".
	(new_symbol): Likewise.
2020-05-15 16:11:34 -06:00
7813437494 gdb: remove TYPE_CODE macro
Remove TYPE_CODE, changing all the call sites to use type::code
directly.  This is quite a big diff, but this was mostly done using sed
and coccinelle.  A few call sites were done by hand.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_CODE): Remove.  Change all call sites to use
	type::code instead.
2020-05-14 13:46:38 -04:00
94c93c35b5 Remove ALL_PSPACES
This removes the ALL_PSPACES macro.  In this case it seemed cleanest
to change how program spaces are stored -- instead of using a linked
list, they are now stored in a std::vector.

gdb/ChangeLog
2020-05-08  Tom Tromey  <tom@tromey.com>

	* symtab.c (set_symbol_cache_size)
	(maintenance_print_symbol_cache, maintenance_flush_symbol_cache)
	(maintenance_print_symbol_cache_statistics): Update.
	* symmisc.c (print_symbol_bcache_statistics)
	(print_objfile_statistics, maintenance_print_objfiles)
	(maintenance_info_symtabs, maintenance_check_symtabs)
	(maintenance_expand_symtabs, maintenance_info_line_tables):
	Update.
	* symfile-debug.c (set_debug_symfile): Update.
	* source.c (forget_cached_source_info): Update.
	* python/python.c (gdbpy_progspaces): Update.
	* psymtab.c (maintenance_info_psymtabs): Update.
	* probe.c (parse_probes): Update.
	* linespec.c (iterate_over_all_matching_symtabs)
	(collect_symtabs_from_filename, search_minsyms_for_name): Update.
	* guile/scm-progspace.c (gdbscm_progspaces): Update.
	* exec.c (exec_target::close): Update.
	* ada-tasks.c (ada_tasks_new_objfile_observer): Update.
	* breakpoint.c (print_one_breakpoint_location)
	(create_longjmp_master_breakpoint)
	(create_std_terminate_master_breakpoint): Update.
	* progspace.c (program_spaces): Now a std::vector.
	(maybe_new_address_space): Update.
	(add_program_space): Remove.
	(program_space::program_space): Update.
	(remove_program_space): Update.
	(number_of_program_spaces): Remove.
	(print_program_space, update_address_spaces): Update.
	* progspace.h (program_spaces): Change type.
	(ALL_PSPACES): Remove.
	(number_of_program_spaces): Don't declare.
	(struct program_space) <next>: Remove.
2020-05-08 14:21:22 -06:00
596dc4adff Speed up psymbol reading by removing a copy
I noticed that cp_canonicalize_string and friends copy a
unique_xmalloc_ptr to a std::string.  However, this copy isn't
genuinely needed anywhere, and it serves to slow down DWARF psymbol
reading.

This patch removes the copy and updates the callers to adapt.

This speeds up the reader from 1.906 seconds (mean of 10 runs, of gdb
on a copy of itself) to 1.888 seconds (mean of 10 runs, on the same
copy as the first trial).

gdb/ChangeLog
2020-05-08  Tom Tromey  <tom@tromey.com>

	* symtab.h (class demangle_result_storage) <set_malloc_ptr>: New
	overload.
	<swap_string, m_string>: Remove.
	* symtab.c (demangle_for_lookup, completion_list_add_symbol):
	Update.
	* stabsread.c (define_symbol, read_type): Update.
	* linespec.c (find_linespec_symbols): Update.
	* gnu-v3-abi.c (gnuv3_get_typeid): Update.
	* dwarf2/read.c (dwarf2_canonicalize_name): Update.
	* dbxread.c (read_dbx_symtab): Update.
	* cp-support.h (cp_canonicalize_string_full)
	(cp_canonicalize_string, cp_canonicalize_string_no_typedefs):
	Return unique_xmalloc_ptr.
	* cp-support.c (inspect_type): Update.
	(cp_canonicalize_string_full): Return unique_xmalloc_ptr.
	(cp_canonicalize_string_no_typedefs, cp_canonicalize_string):
	Likewise.
	* c-typeprint.c (print_name_maybe_canonical): Update.
	* break-catch-throw.c (check_status_exception_catchpoint):
	Update.
2020-05-08 14:14:06 -06:00
7151c1af38 Remove symbol_get_demangled_name
Now that symbol_get_demangled_name is only used by general_symbol_info
methods, and because these methods already check the symbol's language
to decide what to return, symbol_get_demangled_name is no longer
needed.  This patch removes it.

gdb/ChangeLog
2020-04-24  Tom Tromey  <tom@tromey.com>

	* symtab.h (symbol_get_demangled_name): Don't declare.
	* symtab.c (symbol_get_demangled_name): Remove.
	(general_symbol_info::natural_name)
	(general_symbol_info::demangled_name): Update.
2020-04-24 15:35:04 -06:00
8c87a4527f Fix two latent Rust bugs
Two methods on general_symbol_info did not handle the language_rust
case.  I don't think these problems can be noticed with the current
code (which is why the bugs went unnoticed), but a future patch will
change this.

gdb/ChangeLog
2020-04-24  Tom Tromey  <tom@tromey.com>

	* symtab.c (general_symbol_info::natural_name)
	(general_symbol_info::demangled_name): Check for language_rust.
2020-04-24 15:35:02 -06:00
ff98567107 Convert symbol_set_demangled_name to a method
This changes symbol_set_demangled_name to be a method on
general_symbol_info, and updates the users.

gdb/ChangeLog
2020-04-24  Tom Tromey  <tom@tromey.com>

	* symtab.h (struct general_symbol_info) <set_demangled_name>: New
	method.
	(symbol_set_demangled_name): Don't declare.
	* symtab.c (general_symbol_info::set_demangled_name): Rename from
	symbol_set_demangled_name.
	(general_symbol_info::set_language)
	(general_symbol_info::compute_and_set_names): Update.
	* minsyms.c (minimal_symbol_reader::install): Update.
	* dwarf2/read.c (new_symbol): Update.
2020-04-24 15:35:02 -06:00
70bc38f513 [gdb/symtab] Prefer def over decl (inter-CU case, with context)
This is a follow-up patch on "[PATCH][gdb/symtab] Prefer def over decl
(inter-CU case)" (
https://sourceware.org/pipermail/gdb-patches/2020-April/167489.html ).

Consider the test-case from that patch.  It contains a decl and def of var a
in different CUs, and tests whether var a can be printed using the def, even
if the decl is found first.

However, the test-case does this in a contextless environment, so if we add to
the test-case like this to set the context to the CU containing main:
...
 gdb_test "p a" { = \{1, 2\}}
+
+if ![runto_main] then {
+    fail "can't run to main"
+    return 0
+}
+
+gdb_test "p a" { = \{1, 2\}}
...
then the second test fails, because the decl is found in the context.

Fix this by preferring defs over decls in lookup_global_symbol.

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-04-23  Tom de Vries  <tdevries@suse.de>

	* symtab.c (lookup_global_symbol): Prefer def over decl.

gdb/testsuite/ChangeLog:

2020-04-23  Tom de Vries  <tdevries@suse.de>

	* gdb.base/decl-before-def.exp: Run to main and print a again.
2020-04-23 15:42:47 +02:00
de82891ce5 [gdb/symtab] Prefer def over decl (inter-CU case)
When running test-case gdb.threads/tls.exp with target board -readnow, we
have:
...
(gdb) print a_thread_local^M
Cannot find thread-local storage for process 0, executable file tls/tls:^M
Cannot find thread-local variables on this target^M
(gdb) FAIL: gdb.threads/tls.exp: print a_thread_local
...
while with native we have:
...
(gdb) print a_thread_local^M
Cannot read `a_thread_local' without registers^M
(gdb) PASS: gdb.threads/tls.exp: print a_thread_local
...

The difference in behaviour can be explained as follows.  Without -readnow, we
have two a_thread_locals, the def and the decl, each in a different CU:
...
$ gdb -batch outputs/gdb.threads/tls/tls \
    -ex "maint expand-symtabs" \
    -ex "print a_thread_local" \
    -ex "maint print symbols" \
    | grep "a_thread_local;"
Cannot read `a_thread_local' without registers
 int a_thread_local; computed at runtime
 int a_thread_local; unresolved
...
and with -readnow, we have the opposite order:
...
$ gdb -readnow -batch outputs/gdb.threads/tls/tls  \
    -ex "maint expand-symtabs" \
    -ex "print a_thread_local" \
    -ex "maint print symbols" \
    | grep "a_thread_local;"
Cannot find thread-local storage for process 0, executable file tls/tls:
Cannot find thread-local variables on this target
 int a_thread_local; unresolved
 int a_thread_local; computed at runtime
...

Fix the FAIL by preferring the def over the decl (something we already do
intra-CU since the fix for PR24971, commit 93e55f0a03 "[gdb/symtab] Prefer var
def over decl").

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-04-23  Tom de Vries  <tdevries@suse.de>

	PR symtab/25807
	* block.c (best_symbol, better_symbol): Promote to external.
	* block.h (best_symbol, better_symbol): Declare.
	* symtab.c (lookup_symbol_in_objfile_symtabs): Prefer def over
	decl.

gdb/testsuite/ChangeLog:

2020-04-23  Tom de Vries  <tdevries@suse.de>

	* gdb.base/decl-before-def-decl.c: New test.
	* gdb.base/decl-before-def-def.c: New test.
	* gdb.base/decl-before-def.exp: New file.
2020-04-23 15:42:47 +02:00
08feed99cb Change get_objfile_arch to a method on objfile
This changes get_objfile_arch to be a new inline method,
objfile::arch.

To my surprise, this function came up while profiling DWARF psymbol
reading.  Making this change improved performance from 1.986 seconds
to 1.869 seconds.  Both measurements were done by taking the mean of
10 runs on a fixed copy of the gdb executable.

gdb/ChangeLog
2020-04-18  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (enter_line_range, scan_xcoff_symtab): Update.
	* value.c (value_fn_field): Update.
	* valops.c (find_function_in_inferior)
	(value_allocate_space_in_inferior): Update.
	* tui/tui-winsource.c (tui_update_source_windows_with_line):
	Update.
	* tui/tui-source.c (tui_source_window::set_contents): Update.
	* symtab.c (lookup_global_or_static_symbol)
	(find_function_start_sal_1, skip_prologue_sal)
	(print_msymbol_info, find_gnu_ifunc, symbol_arch): Update.
	* symmisc.c (dump_msymbols, dump_symtab_1)
	(maintenance_print_one_line_table): Update.
	* symfile.c (init_entry_point_info, section_is_mapped)
	(list_overlays_command, simple_read_overlay_table)
	(simple_overlay_update_1): Update.
	* stap-probe.c (handle_stap_probe): Update.
	* stabsread.c (dbx_init_float_type, define_symbol)
	(read_one_struct_field, read_enum_type, read_range_type): Update.
	* source.c (info_line_command): Update.
	* python/python.c (gdbpy_source_objfile_script)
	(gdbpy_execute_objfile_script): Update.
	* python/py-type.c (save_objfile_types): Update.
	* python/py-objfile.c (py_free_objfile): Update.
	* python/py-inferior.c (python_new_objfile): Update.
	* psymtab.c (psym_find_pc_sect_compunit_symtab, dump_psymtab)
	(dump_psymtab_addrmap_1, maintenance_info_psymtabs)
	(maintenance_check_psymtabs): Update.
	* printcmd.c (info_address_command): Update.
	* objfiles.h (struct objfile) <arch>: New method, from
	get_objfile_arch.
	(get_objfile_arch): Don't declare.
	* objfiles.c (get_objfile_arch): Remove.
	(filter_overlapping_sections): Update.
	* minsyms.c (msymbol_is_function): Update.
	* mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines)
	(output_nondebug_symbol): Update.
	* mdebugread.c (parse_symbol, basic_type, parse_partial_symbols)
	(mdebug_expand_psymtab): Update.
	* machoread.c (macho_add_oso_symfile): Update.
	* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap):
	Update.
	* linux-fork.c (checkpoint_command): Update.
	* linespec.c (convert_linespec_to_sals): Update.
	* jit.c (finalize_symtab): Update.
	* infrun.c (insert_exception_resume_from_probe): Update.
	* ia64-tdep.c (ia64_find_unwind_table): Update.
	* hppa-tdep.c (internalize_unwinds): Update.
	* gdbtypes.c (get_type_arch, init_float_type, objfile_type):
	Update.
	* gcore.c (call_target_sbrk): Update.
	* elfread.c (record_minimal_symbol, elf_symtab_read)
	(elf_rel_plt_read, elf_gnu_ifunc_record_cache)
	(elf_gnu_ifunc_resolve_by_got): Update.
	* dwarf2/read.c (create_addrmap_from_index)
	(create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab)
	(read_debug_names_from_section)
	(process_psymtab_comp_unit_reader, add_partial_symbol)
	(add_partial_subprogram, process_full_comp_unit)
	(read_file_scope, read_func_scope, read_lexical_block_scope)
	(read_call_site_scope, dwarf2_ranges_read)
	(dwarf2_record_block_ranges, dwarf2_add_field)
	(mark_common_block_symbol_computed, read_tag_pointer_type)
	(read_tag_string_type, dwarf2_init_float_type)
	(dwarf2_init_complex_target_type, read_base_type)
	(partial_die_info::read, partial_die_info::read)
	(read_attribute_value, dwarf_decode_lines_1, new_symbol)
	(dwarf2_fetch_die_loc_sect_off): Update.
	* dwarf2/loc.c (dwarf2_find_location_expression)
	(class dwarf_evaluate_loc_desc, rw_pieced_value)
	(dwarf2_evaluate_loc_desc_full, dwarf2_locexpr_baton_eval)
	(dwarf2_loc_desc_get_symbol_read_needs)
	(locexpr_describe_location_piece, locexpr_describe_location_1)
	(loclist_describe_location): Update.
	* dwarf2/index-write.c (write_debug_names): Update.
	* dwarf2/frame.c (dwarf2_build_frame_info): Update.
	* dtrace-probe.c (dtrace_process_dof): Update.
	* dbxread.c (read_dbx_symtab, dbx_end_psymtab)
	(process_one_symbol): Update.
	* ctfread.c (ctf_init_float_type, read_base_type): Update.
	* coffread.c (coff_symtab_read, enter_linenos, decode_base_type)
	(coff_read_enum_type): Update.
	* cli/cli-cmds.c (edit_command, list_command): Update.
	* buildsym.c (buildsym_compunit::finish_block_internal): Update.
	* breakpoint.c (create_overlay_event_breakpoint)
	(create_longjmp_master_breakpoint)
	(create_std_terminate_master_breakpoint)
	(create_exception_master_breakpoint, get_sal_arch): Update.
	* block.c (block_gdbarch): Update.
	* annotate.c (annotate_source_line): Update.
2020-04-18 08:35:04 -06:00
0743fc83c0 Replace most calls to help_list and cmd_show_list
Currently there are many prefix commands that do nothing but call
either help_list or cmd_show_list.  I happened to notice that one such
call, for "set print type", used the wrong command list parameter,
causing incorrect output.

Rather than fix this bug in isolation, I decided to eliminate this
possibility by adding two new ways to add prefix commands, which
simply route the call to help_list or cmd_show_list, as appropriate.
This makes it impossible for a mismatch to occur.

In some cases, a bit of output was removed; however, I don't think
this output in general was very useful.  It seemed redundant with
what's already printed by help_list.  A representative example is this
hunk, removed from ada-lang.c:

-  printf_unfiltered (_(\
-"\"set ada\" must be followed by the name of a setting.\n"));

This simplified the CLI style set/show commands quite a bit, and
allowed the deletion of a macro.

This also cleans up some unusual code in windows-tdep.c.

Tested on x86-64 Fedora 30.  Note that I have no way to build the
go32-nat.c change.

gdb/ChangeLog
2020-04-17  Tom Tromey  <tromey@adacore.com>

	* auto-load.c (show_auto_load_cmd): Remove.
	(auto_load_show_cmdlist_get): Use add_show_prefix_cmd.
	* arc-tdep.c (_initialize_arc_tdep): Use add_show_prefix_cmd.
	(maintenance_print_arc_command): Remove.
	* tui/tui-win.c (tui_command): Remove.
	(tui_get_cmd_list): Use add_basic_prefix_cmd.
	* tui/tui-layout.c (tui_layout_command): Remove.
	(_initialize_tui_layout): Use add_basic_prefix_cmd.
	* python/python.c (user_set_python, user_show_python): Remove.
	(_initialize_python): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* guile/guile.c (set_guile_command, show_guile_command): Remove.
	(install_gdb_commands): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(info_guile_command): Remove.
	* dwarf2/read.c (set_dwarf_cmd, show_dwarf_cmd): Remove.
	(_initialize_dwarf2_read): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cli/cli-style.h (class cli_style_option) <add_setshow_commands>:
	Remove do_set and do_show parameters.
	* cli/cli-style.c (set_style, show_style): Remove.
	(_initialize_cli_style): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(cli_style_option::add_setshow_commands): Remove do_set and
	do_show parameters.
	(cli_style_option::add_setshow_commands): Use
	add_basic_prefix_cmd, add_show_prefix_cmd.
	(STYLE_ADD_SETSHOW_COMMANDS): Remove macro.
	(set_style_name): Remove.
	* cli/cli-dump.c (dump_command, append_command): Remove.
	(srec_dump_command, ihex_dump_command, verilog_dump_command)
	(tekhex_dump_command, binary_dump_command)
	(binary_append_command): Remove.
	(_initialize_cli_dump): Use add_basic_prefix_cmd.
	* windows-tdep.c (w32_prefix_command_valid): Remove global.
	(init_w32_command_list): Remove; move into ...
	(_initialize_windows_tdep): ... here.  Use add_basic_prefix_cmd.
	* valprint.c (set_print, show_print, set_print_raw)
	(show_print_raw): Remove.
	(_initialize_valprint): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* typeprint.c (set_print_type, show_print_type): Remove.
	(_initialize_typeprint): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* record.c (set_record_command, show_record_command): Remove.
	(_initialize_record): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cli/cli-cmds.c (_initialize_cli_cmds): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(info_command, show_command, set_debug, show_debug): Remove.
	* top.h (set_history, show_history): Don't declare.
	* top.c (set_history, show_history): Remove.
	* target-descriptions.c (set_tdesc_cmd, show_tdesc_cmd)
	(unset_tdesc_cmd): Remove.
	(_initialize_target_descriptions): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* symtab.c (info_module_command): Remove.
	(_initialize_symtab): Use add_basic_prefix_cmd.
	* symfile.c (overlay_command): Remove.
	(_initialize_symfile): Use add_basic_prefix_cmd.
	* sparc64-tdep.c (info_adi_command): Remove.
	(_initialize_sparc64_adi_tdep): Use add_basic_prefix_cmd.
	* sh-tdep.c (show_sh_command, set_sh_command): Remove.
	(_initialize_sh_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* serial.c (serial_set_cmd, serial_show_cmd): Remove.
	(_initialize_serial): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ser-tcp.c (set_tcp_cmd, show_tcp_cmd): Remove.
	(_initialize_ser_tcp): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* rs6000-tdep.c (set_powerpc_command, show_powerpc_command)
	(_initialize_rs6000_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* riscv-tdep.c (show_riscv_command, set_riscv_command)
	(show_debug_riscv_command, set_debug_riscv_command): Remove.
	(_initialize_riscv_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* remote.c (remote_command, set_remote_cmd): Remove.
	(_initialize_remote): Use add_basic_prefix_cmd.
	* record-full.c (set_record_full_command)
	(show_record_full_command): Remove.
	(_initialize_record_full): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* record-btrace.c (cmd_set_record_btrace)
	(cmd_show_record_btrace, cmd_set_record_btrace_bts)
	(cmd_show_record_btrace_bts, cmd_set_record_btrace_pt)
	(cmd_show_record_btrace_pt): Remove.
	(_initialize_record_btrace): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ravenscar-thread.c (set_ravenscar_command)
	(show_ravenscar_command): Remove.
	(_initialize_ravenscar): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* mips-tdep.c (show_mips_command, set_mips_command)
	(_initialize_mips_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* maint.c (maintenance_command, maintenance_info_command)
	(maintenance_check_command, maintenance_print_command)
	(maintenance_set_cmd, maintenance_show_cmd): Remove.
	(_initialize_maint_cmds): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(show_per_command_cmd): Remove.
	* maint-test-settings.c (maintenance_set_test_settings_cmd):
	Remove.
	(maintenance_show_test_settings_cmd): Remove.
	(_initialize_maint_test_settings): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* maint-test-options.c (maintenance_test_options_command):
	Remove.
	(_initialize_maint_test_options): Use add_basic_prefix_cmd.
	* macrocmd.c (macro_command): Remove
	(_initialize_macrocmd): Use add_basic_prefix_cmd.
	* language.c (set_check, show_check): Remove.
	(_initialize_language): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* infcmd.c (unset_command): Remove.
	(_initialize_infcmd): Use add_basic_prefix_cmd.
	* i386-tdep.c (set_mpx_cmd, show_mpx_cmd): Remove.
	(_initialize_i386_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* go32-nat.c (go32_info_dos_command): Remove.
	(_initialize_go32_nat): Use add_basic_prefix_cmd.
	* cli/cli-decode.c (do_prefix_cmd, add_basic_prefix_cmd)
	(do_show_prefix_cmd, add_show_prefix_cmd): New functions.
	* frame.c (set_backtrace_cmd, show_backtrace_cmd): Remove.
	(_initialize_frame): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* dcache.c (set_dcache_command, show_dcache_command): Remove.
	(_initialize_dcache): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cp-support.c (maint_cplus_command): Remove.
	(_initialize_cp_support): Use add_basic_prefix_cmd.
	* btrace.c (maint_btrace_cmd, maint_btrace_set_cmd)
	(maint_btrace_show_cmd, maint_btrace_pt_set_cmd)
	(maint_btrace_pt_show_cmd, _initialize_btrace): Use
	add_basic_prefix_cmd, add_show_prefix_cmd.
	* breakpoint.c (save_command): Remove.
	(_initialize_breakpoint): Use add_basic_prefix_cmd.
	* arm-tdep.c (set_arm_command, show_arm_command): Remove.
	(_initialize_arm_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ada-lang.c (maint_set_ada_cmd, maint_show_ada_cmd)
	(set_ada_command, show_ada_command): Remove.
	(_initialize_ada_language): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* command.h (add_basic_prefix_cmd, add_show_prefix_cmd): Declare.

gdb/testsuite/ChangeLog
2020-04-17  Tom Tromey  <tromey@adacore.com>

	* gdb.cp/maint.exp (test_help): Simplify multiple_help_body.
	Update tests.
	* gdb.btrace/cpu.exp: Update tests.
	* gdb.base/maint.exp: Update tests.
	* gdb.base/default.exp: Update tests.
	* gdb.base/completion.exp: Update tests.
2020-04-17 15:13:41 -06:00
c1a66c0629 [gdb] Expand symbolless symtabs using maint expand-symtabs
Consider this test-case, consisting of header file hello.h:
...
inline static const char*
foo (void)
{
  return "foo";
}
...
and source file hello.c:
...
int
main (void)
{
  printf ("hello: %s\n", foo ());
  return 0;
}
...
compiled with -g:
...
$ gcc hello.c -g
...

When trying to expand the partial symtab for hello.h:
...
$ gdb -batch \
  -iex "set language c" \
  a.out \
  -ex "maint expand-symtabs hello.h" \
  -ex "maint info psymtabs"
...
we in fact find that the partial symtab for hello.h (and corresponding
includer partial symtab hello.c) have not been expanded:
...
  { psymtab hello.h ((struct partial_symtab *) 0x27cf070)
    readin no
  ...
  { psymtab hello.c ((struct partial_symtab *) 0x2cf09e0)
    readin no
...

This is due to the recursively_search_psymtabs call in
psym_expand_symtabs_matching:
...
      if (recursively_search_psymtabs (ps, objfile, domain,
                                      lookup_name, symbol_matcher))
...
which always returns false for symbolless partial symtabs.

The same problem occurs with CUs where the dwarf is generated by gas
--gdwarf-2 for a foo.S: if we read such a test-case with -readnow, we'll have
a symbolless symtab for foo.S.  But if we read the test-case with partial
symtabs, and expand those using "maint expand-symtabs", the foo.S psymtab
remains unexpanded.

Fix this by passing a NULL symbol_matcher and lookup_name to
expand_symtabs_matching in maintenance_expand_symtabs, and skipping the call
to recursively_search_psymtabs if symbol_matcher == NULL and
lookup_name == NULL.

Build and tested on x86_64-linux, with native.

In addition, tested test-case with target boards cc-with-gdb-index.exp,
cc-with-debug-names.exp and readnow.exp.

gdb/ChangeLog:

2020-04-14  Tom de Vries  <tdevries@suse.de>

	PR symtab/25720
	* symmisc.c (maintenance_expand_symtabs): Call expand_symtabs_matching
	with NULL symbol_matcher and lookup_name.
	* psymtab.c (psym_expand_symtabs_matching): Handle NULL symbol_matcher
	and lookup_name.
	* dwarf2/read.c (dw2_expand_symtabs_matching)
	(dw2_debug_names_expand_symtabs_matching): Same.
	* symfile.h (struct quick_symbol_functions::expand_symtabs_matching):
	Make lookup_name a pointer.  Update comment.
	* symtab.c (global_symbol_searcher::expand_symtabs): Handle
	lookup_name being a pointer.
	* symfile.c (expand_symtabs_matching): Same.
	* symfile-debug.c (debug_qf_expand_symtabs_matching): Same.
	* linespec.c (iterate_over_all_matching_symtabs): Same.

gdb/testsuite/ChangeLog:

2020-04-14  Tom de Vries  <tdevries@suse.de>

	PR symtab/25720
	* gdb.base/maint-expand-symbols-header-file.c: New test.
	* gdb.base/maint-expand-symbols-header-file.exp: New file.
	* gdb.base/maint-expand-symbols-header-file.h: New test.
2020-04-14 15:08:42 +02:00
3e65b3e9af Skip separate debug files when handling copy relocations
get_symbol_address and get_msymbol_address call
lookup_minimal_symbol_linkage, which iterates over the separate debug
files of the objfile that is passed in.

This means that if these functions pass in a separate debug objfile,
then they are doing unnecessary work.

This patch avoids the extra work by skipping separate debug objfiles
in the loops.

gdb/ChangeLog
2020-04-10  Tom Tromey  <tromey@adacore.com>

	* symtab.c (get_symbol_address, get_msymbol_address): Skip
	separate debug files.
2020-04-10 07:21:16 -06:00
d321419811 [gdb] Use partial symbol table to find language for main
When language is set to auto, part of loading an executable is to update the
language accordingly.  This is implemented by set_initial_language.

The implementation of set_initial_language works as follows:
- check if any objfile in the progspace has name_of_main/language_of_main
  set, and if so, use the first one found. [ This is what you get f.i. when
  using dwarf with DW_AT_main_subprogram. ]
- otherwise, check for known names in the minimal symbols, and either:
- use the associated language if any (f.i. for ada), or
- lookup the symbol in the symtab for the name and use the symbol language
  (f.i. for c/c++).

The symbol lookup can be slow though.

In the case of the cc1 binary from PR23710 comment 1, getting to the initial
prompt takes ~8s:
...
$ time.sh gdb cc1 -batch -ex "show language"
The current source language is "auto; currently c++".
maxmem: 1272260
real: 8.05
user: 7.73
system: 0.38
...
but if we skip guessing the initial language by setting it instead, it takes
only ~4s:
...
$ time.sh gdb -iex "set language c++" cc1 -batch -ex "show language"
The current source language is "c++".
maxmem: 498272
real: 3.99
user: 3.90
system: 0.15
...

In both cases, we load the partial symbols for the executable, but in the
first case only we also do a lookup of main, which causes the corresponding
partial symtab to be expanded into a full symtab.

Ideally, we'd like to get the language of the symbol without triggering
expansion into a full symtab, and get the speedup without having to set the
language manually.

There's a related fixme in the header comment of set_initial_language:
...
/* Set the initial language.

   FIXME: A better solution would be to record the language in the
   psymtab when reading partial symbols, and then use it (if known) to
   set the language.  This would be a win for formats that encode the
   language in an easily discoverable place, such as DWARF.  For
   stabs, we can jump through hoops looking for specially named
   symbols or try to intuit the language from the specific type of
   stabs we find, but we can't do that until later when we read in
   full symbols.  */

void
set_initial_language (void)
...

Since we're already tracking the language of partial symbols, use this to set
the language for the main symbol.

Note that this search in partial symbol tables is not guaranteed to yield the
same result as the lookup_symbol_in_language call currently done in
set_initial_language.

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-04-02  Tom de Vries  <tdevries@suse.de>

	* dwarf2/read.c (dwarf2_gdb_index_functions,
	dwarf2_debug_names_functions): Init lookup_global_symbol_language with
	NULL.
	* psymtab.c (psym_lookup_global_symbol_language): New function.
	(psym_functions): Init psym_lookup_global_symbol_language with
	psym_lookup_global_symbol_language.
	* symfile-debug.c (debug_sym_quick_functions): Init
	lookup_global_symbol_language with NULL.
	* symfile.c (set_initial_language): Remove fixme comment.
	* symfile.h (struct quick_symbol_functions): Add
	lookup_global_symbol_language.
	* symtab.c (find_quick_global_symbol_language): New function.
	(find_main_name): Use find_quick_global_symbol_language.

gdb/testsuite/ChangeLog:

2020-04-02  Tom de Vries  <tdevries@suse.de>

	* gdb.base/main-psymtab.exp: New file.
2020-04-02 08:47:49 +02:00
e0802d5996 Avoid copying in lookup_name_info
lookup_name_info always copies the name that is passed in.  However,
normally a copy is not needed.  This patch changes this class to avoid
copying.  This required changing the "name" method to return something
else; I chose a gdb::string_view, to avoid excessive calls to strlen
in the code using the lookup_name_info.  However, as this class does
not allow an arbitrary string_view, I've also added a c_str method
that guarantees a \0-terminated result -- a pedantic difference but
one that respects the string_view contract, IMO.

gdb/ChangeLog
2020-04-01  Tom Tromey  <tromey@adacore.com>

	* symtab.h (class lookup_name_info) <lookup_name_info>: Change
	"name" parameter to rvalue reference.  Initialize m_name_holder.
	<lookup_name_info>: New overloads.
	<name>: Return gdb::string_view.
	<c_str>: New method.
	<make_ignore_params>: Update.
	<search_name_hash>: Update.
	<language_lookup_name>: Return const char *.
	<m_name>: Change type.
	* symtab.c (demangle_for_lookup_info::demangle_for_lookup_info)
	(demangle_for_lookup_info::demangle_for_lookup_info): Update.
	(lookup_name_info::match_any): Update.
	* psymtab.c (match_partial_symbol, lookup_partial_symbol):
	Update.
	* minsyms.c (linkage_name_str): Update.
	* language.c (default_symbol_name_matcher): Update.
	* dwarf2/read.c (mapped_index_base::find_name_components_bounds):
	Update.
	* ada-lang.c (ada_fold_name): Change parameter to string_view.
	(ada_lookup_name_info::ada_lookup_name_info): Update.
	(literal_symbol_name_matcher): Update.
2020-04-01 07:47:13 -06:00
19a2740f7f gdb: Remove C++ symbol aliases from completion list
Consider debugging the following C++ program:

  struct object
  { int a; };

  typedef object *object_p;

  static int
  get_value (object_p obj)
  {
    return obj->a;
  }

  int
  main ()
  {
    object obj;
    obj.a = 0;

    return get_value (&obj);
  }

Now in a GDB session:

  (gdb) complete break get_value
  break get_value(object*)
  break get_value(object_p)

Or:

  (gdb) break get_va<TAB>
  (gdb) break get_value(object<RETURN>
  Function "get_value(object" not defined.
  Make breakpoint pending on future shared library load? (y or [n]) n

The reason this happens is that we add completions based on the
msymbol names and on the symbol names.  For C++ both of these names
include the parameter list, however, the msymbol names have some
differences from the symbol names, for example:

  + typedefs are resolved,
  + whitespace rules are different around pointers,
  + the 'const' keyword is placed differently.

What this means is that the msymbol names and symbol names appear to
be completely different to GDB's completion tracker, and therefore to
readline when it offers the completions.

This commit builds on the previous commit which reworked the
completion_tracker class.  It is now trivial to add a
remove_completion member function, this is then used along with
cp_canonicalize_string_no_typedefs to remove the msymbol aliases from
the completion tracker as we add the symbol names.

Now, for the above program GDB only presents a single completion for
'get_value', which is 'get_value(object_p)'.

It is still possible to reference the symbol using the msymbol name,
so a user can manually type out 'break get_value (object *)' if they
wish and will get the expected behaviour.

I did consider adding an option to make this alias exclusion optional,
in the end I didn't bother as I didn't think it would be very useful,
but I can easily add such an option if people think it would be
useful.

gdb/ChangeLog:

	* completer.c (completion_tracker::remove_completion): Define new
	function.
	* completer.h (completion_tracker::remove_completion): Declare new
	function.
	* symtab.c (completion_list_add_symbol): Remove aliasing msymbols
	when adding a C++ function symbol.

gdb/testsuite/ChangeLog:

	* gdb.linespec/cp-completion-aliases.cc: New file.
	* gdb.linespec/cp-completion-aliases.exp: New file.

Change-Id: Ie5c7c9fc8ecf973072cfb4a9650867104bf7f50c
2020-03-19 08:23:30 +00:00
dd69bf7a78 Avoid infinite recursion in find_pc_sect_line
A patch somewhat like this patch has been in Fedora GDB for well over
a decade.  The Fedora patch was written by Jan Kratochvil.  The Fedora
version prints a warning and attempts to continue.  This version will
error out, fatally.  An earlier version of this patch was more like
the Fedora version than this one.  Simon Marchi recommended use of an
assertion to test for the infinite recursion; I decided to use an
explicit test (with an "if" statement) along with a call to
internal_error() if the condition is met.  This way, I could include
a plea to file a bug report.

It was motivated by a customer reported bug (back in 2006!) which
showed infinite mutual recursion between find_pc_sect_line and
find_pc_line.  Here is a portion of the backtrace from the bug report:

    (gdb) bt
    #0  0x00000000004450a4 in lookup_minimal_symbol_by_pc_section (
	pc=251700325328, section=0x570f500) at gdb/minsyms.c:484
    #1  0x00000000004bbfb2 in find_pc_sect_line (pc=251700325328,
	section=0x570f500, notcurrent=0) at gdb/symtab.c:2057
    #2  0x00000000004bc480 in find_pc_line (pc=251700325328, notcurrent=0)
	at gdb/symtab.c:2232
    #3  0x00000000004bc1ff in find_pc_sect_line (pc=251700325328,
	section=0x570f500, notcurrent=0) at gdb/symtab.c:2081

    ...   (lots and lots of the same two functions with the same parameters)

    #1070 0x00000000004bc480 in find_pc_line (pc=251700325328, notcurrent=0)
	at gdb/symtab.c:2232
    #1071 0x00000000004bc1ff in find_pc_sect_line (pc=251700325328,
	section=0x570f500, notcurrent=0) at gdb/symtab.c:2081
    #1072 0x00000000004bc480 in find_pc_line (pc=251700325328, notcurrent=0)
	at gdb/symtab.c:2232
    #1073 0x00000000004bc1ff in find_pc_sect_line (pc=251700325328,
	section=0x570f500, notcurrent=0) at gdb/symtab.c:2081
    #1074 0x00000000004bc480 in find_pc_line (pc=251700325328, notcurrent=0)
	at gdb/symtab.c:2232
    #1075 0x00000000004bc1ff in find_pc_sect_line (pc=251696794399,
	section=0x59b0df8, notcurrent=0) at gdb/symtab.c:2081
    #1076 0x00000000004bc480 in find_pc_line (pc=251696794399, notcurrent=0)
	at gdb/symtab.c:2232
    #1077 0x000000000055550e in find_frame_sal (frame=0xb3f3e0, sal=0x7fff1d1a8200)
	at gdb/frame.c:1392
    #1078 0x00000000004d86fd in set_current_sal_from_frame (frame=0x1648, center=1)
	at gdb/stack.c:379
    #1079 0x00000000004cf137 in normal_stop () at gdb/infrun.c:3147
    ...

The test case was a large application.  Attempts were made to make a
small(er) test case, but those attempts were not successful.
Therefore, I cannot provide a new test for this patch.

That said, we ought to guard against recursively calling
find_pc_sect_line (via find_pc_line) with the identical PC value that
it had been called with.  Should this happen, infinite recursion (as
shown in the above backtrace) is the result.  This patch prevents
that from happening.

If this should happens, there is a bug somewhere, perhaps in GDB, perhaps
in some other part of the toolchain or a library.  We error out fatally
with a message briefly describing the condition along with a plea to file
a bug report.

I spent some time looking at the surrounding code and commentary which
handle the case of PC being in a stub/trampoline.  It first appeared
in the public GDB repository in April, 1999.  The ChangeLog entry for
this commit is from 1998-12-31.  The relevant portion is:

	(find_pc_sect_line): Return correct information if pc is in import
	or export stub (trampoline).

What's remarkable about the overall ChangeLog entry is that it's over
2500+ lines long!  I believe that this was part of the infamous "HP
merge" (in which insufficient due diligence was given in accepting
a large batch of changes from an outside source).  In the years that
followed, much of this code was either significantly revised or
outright removed.

For this particular case, I'm grateful that extensive comments were
provided by "RT".  (I haven't been able to figure out who RT is/was.)
I've decided against attempting to revise this stub/trampoline handling
code any further than adding Jan's test which prevents an obvious case
of infinite recursion.

I've tested on Fedora 31, x86-64.  I see no regressions.  I've also
searched the logfile for the new message, but as expected, no message
was found (which is good).

gdb/ChangeLog:

	* symtab.c (find_pc_sect_line): Add check which prevents infinite
	recursion.

Change-Id: I595470be6ab5f61ca7e4e9e70c61a252c0deaeaa
2020-03-11 22:56:51 -07:00
8c95582da8 gdb: Add support for tracking the DWARF line table is-stmt field
This commit brings support for the DWARF line table is_stmt field to
GDB.  The is_stmt field is used by the compiler when a single source
line is split into multiple assembler instructions, especially if the
assembler instructions are interleaved with instruction from other
source lines.

The compiler will set the is_stmt flag false from some instructions
from the source lines, these instructions are not a good place to
insert a breakpoint in order to stop at the source line.
Instructions which are marked with the is_stmt flag true are a good
place to insert a breakpoint for that source line.

Currently GDB ignores all instructions for which is_stmt is false.
This is fine in a lot of cases, however, there are some cases where
this means the debug experience is not as good as it could be.

Consider stopping at a random instruction, currently this instruction
will be attributed to the last line table entry before this point for
which is_stmt was true - as these are the only line table entries that
GDB tracks.  This can easily be incorrect in code with even a low
level of optimisation.

With is_stmt tracking in place, when stopping at a random instruction
we now attribute the instruction back to the real source line, even
when is_stmt is false for that instruction in the line table.

When inserting breakpoints we still select line table entries for
which is_stmt is true, so the breakpoint placing behaviour should not
change.

When stepping though code (at the line level, not the instruction
level) we will still stop at instruction where is_stmt is true, I
think this is more likely to be the desired behaviour.

Instruction stepping is, of course, unchanged, stepping one
instruction at a time, but we should now report more accurate line
table information with each instruction step.

The original motivation for this work was a patch posted by Bernd
here:
  https://sourceware.org/ml/gdb-patches/2019-11/msg00792.html

As part of that thread it was suggested that many issues would be
resolved if GDB supported line table views, this isn't something I've
attempted in this patch, though reading the spec, it seems like this
would be a useful feature to support in GDB in the future.  The spec
is here:
  http://dwarfstd.org/ShowIssue.php?issue=170427.1

And Bernd gives a brief description of the benefits here:
  https://sourceware.org/ml/gdb-patches/2020-01/msg00147.html

With that all said, I think that there is benefit to having proper
is_stmt support regardless of whether we have views support, so I
think we should consider getting this in first, and then building view
support on top of this.

The gdb.cp/step-and-next-inline.exp test is based off a test proposed
by Bernd Edlinger in this message:
  https://sourceware.org/ml/gdb-patches/2019-12/msg00842.html

gdb/ChangeLog:

	* buildsym-legacy.c (record_line): Pass extra parameter to
	record_line.
	* buildsym.c (buildsym_compunit::record_line): Take an extra
	parameter, reduce duplication in the line table, and record the
	is_stmt flag in the line table.
	* buildsym.h (buildsym_compunit::record_line): Add extra
	parameter.
	* disasm.c (do_mixed_source_and_assembly_deprecated): Ignore
	non-statement lines.
	* dwarf2/read.c (dwarf_record_line_1): Add extra parameter, pass
	this to the symtab builder.
	(dwarf_finish_line): Pass extra parameter to dwarf_record_line_1.
	(lnp_state_machine::record_line): Pass a suitable is_stmt flag
	through to dwarf_record_line_1.
	* infrun.c (process_event_stop_test): When stepping, don't stop at
	a non-statement instruction, and only refresh the step info when
	we land in the middle of a line's range.  Also add an extra
	comment.
	* jit.c (jit_symtab_line_mapping_add_impl): Initialise is_stmt
	field.
	* record-btrace.c (btrace_find_line_range): Only record lines
	marked as is-statement.
	* stack.c (frame_show_address): Show the frame address if we are
	in a non-statement sal.
	* symmisc.c (dump_symtab_1): Print the is_stmt flag.
	(maintenance_print_one_line_table): Print a header for the is_stmt
	column, and include is_stmt information in the output.
	* symtab.c (find_pc_sect_line): Find lines marked as statements in
	preference to non-statements.
	(find_pcs_for_symtab_line): Prefer is-statement entries.
	(find_line_common): Likewise.
	* symtab.h (struct linetable_entry): Add is_stmt field.
	(struct symtab_and_line): Likewise.
	* xcoffread.c (arrange_linetable): Initialise is_stmt field when
	arranging the line table.

gdb/testsuite/ChangeLog:

	* gdb.cp/step-and-next-inline.cc: New file.
	* gdb.cp/step-and-next-inline.exp: New file.
	* gdb.cp/step-and-next-inline.h: New file.
	* gdb.dwarf2/dw2-is-stmt.c: New file.
	* gdb.dwarf2/dw2-is-stmt.exp: New file.
	* gdb.dwarf2/dw2-is-stmt-2.c: New file.
	* gdb.dwarf2/dw2-is-stmt-2.exp: New file.
	* gdb.dwarf2/dw2-ranges-base.exp: Update line table pattern.
2020-03-10 22:32:07 +00:00
869d89506c Two compute_and_set_names simplifications
This patch simplifies compute_and_set_names in a couple of ways.

First, it changes one spot to use obstack_strndup, which is
equivalent, but more concise.

Second, the function ends with two calls to symbol_set_demangled_name.
This can be simplified to a single call.

gdb/ChangeLog
2020-02-19  Tom Tromey  <tom@tromey.com>

	* symtab.c (general_symbol_info::compute_and_set_names): Use
	obstack_strndup.  Simplify call to symbol_set_demangled_name.
2020-02-19 17:22:13 -07:00
095252be0b Disambiguate info_print_options
struct info_print_options is defined in both symtab.c and stack.c, which is
an ODR violation. So, I am renaming info_print_options and related
structs/functions in symtab.c:

info_print_options                ==> info_vars_funcs_options
info_print_options_defs           ==> info_vars_funcs_options_defs
make_info_print_options_def_group ==> make_info_vars_funcs_options_def_group
info_print_command_completer      ==> info_vars_funcs_command_completer

gdb/ChangeLog:

	* symtab.c (info_print_options): Rename to
	info_vars_funcs_options.
	(info_print_options_defs): Rename to
	info_vars_funcs_options_defs.
	(make_info_print_options_def_group): Rename to
	make_info_vars_funcs_options_def_group.
	(info_print_command_completer): Rename to
	info_vars_funcs_command_completer.
	(info_variables_command): Apply name changes.
	(info_functions_command): Likewise.
	(_initialize_symtab): Likewise.
2020-02-05 17:35:18 -08:00
3d92a3e313 gdb: Don't reorder line table entries too much when sorting.
Don't reorder line table entries for the same address when sorting the
line table, maintain the compiler given line order.  Usually this will
reflect the order in which lines are conceptually encountered at a
given address.

Consider this example:

/* 1  */    volatile int global_var;
/* 2  */    int  __attribute__ ((noinline))
/* 3  */    bar ()
/* 4  */    {
/* 5  */      return global_var;
/* 6  */    }
/* 7  */    static inline int __attribute__ ((always_inline))
/* 8  */    foo ()
/* 9  */    {
/* 10 */      return bar ();
/* 11 */    }
/* 12 */    int
/* 13 */    main ()
/* 14 */    {
/* 15 */      global_var = 0;
/* 16 */      return foo ();
/* 17 */    }

GCC 10 currently generates a line table like this (as shown by
objdump):

  CU: ./test.c:
  File name          Line number    Starting address
  test.c                       4            0x4004b0
  test.c                       5            0x4004b0
  test.c                       6            0x4004b6
  test.c                       6            0x4004b7

  test.c                      14            0x4003b0
  test.c                      15            0x4003b0
  test.c                      16            0x4003ba
  test.c                      10            0x4003ba
  test.c                      10            0x4003c1

The interesting entries are those for lines 16 and 10 at address
0x4003ba, these represent the call to foo and the inlined body of
foo.

With the current line table sorting GDB builds the line table like
this (as shown by 'maintenance info line-table'):

  INDEX    LINE ADDRESS
  0          14 0x00000000004003b0
  1          15 0x00000000004003b0
  2          10 0x00000000004003ba
  3          16 0x00000000004003ba
  4         END 0x00000000004003c1
  5           4 0x00000000004004b0
  6           5 0x00000000004004b0
  7         END 0x00000000004004b7

Notice that entries 2 and 3 for lines 10 and 16 are now in a different
order to the line table as given by the compiler.  With this patch
applied the order is now:

  INDEX    LINE ADDRESS
  0          14 0x00000000004003b0
  1          15 0x00000000004003b0
  2          16 0x00000000004003ba
  3          10 0x00000000004003ba
  4         END 0x00000000004003c1
  5           4 0x00000000004004b0
  6           5 0x00000000004004b0
  7         END 0x00000000004004b7

Notice that entries 2 and 3 are now in their original order again.

The consequence of the incorrect ordering is that when stepping
through inlined functions GDB will display the wrong line for the
inner most frame.  Here's a GDB session before this patch is applied:

  Starting program: /home/andrew/tmp/inline/test

  Temporary breakpoint 1, main () at test.c:15
  15	/* 15 */      global_var = 0;
  (gdb) step
  16	/* 16 */      return foo ();
  (gdb) step
  foo () at test.c:16
  16	/* 16 */      return foo ();
  (gdb) step
  bar () at test.c:5
  5	/* 5  */      return global_var;

The step from line 15 to 16 was fine, but the next step should have
taken us to line 10, instead we are left at line 16.  The final step
to line 5 is as expected.

With this patch applied the session goes better:

  Starting program: /home/andrew/tmp/inline/test

  Temporary breakpoint 1, main () at test.c:15
  15	/* 15 */      global_var = 0;
  (gdb) step
  16	/* 16 */      return foo ();
  (gdb) step
  foo () at test.c:10
  10	/* 10 */      return bar ();
  (gdb) step
  bar () at test.c:5
  5	/* 5  */      return global_var;

We now visit the lines as 15, 16, 10, 5 as we would like.

The reason for this issue is that the inline frame unwinder is
detecting that foo is inlined in main.  When we stop at the shared
address 0x4003ba the inline frame unwinder first shows us the outer
frame, this information is extracted from the DWARF's
DW_TAG_inlined_subroutine entries and passed via GDB's block data.

When we step again the inlined frame unwinder moves us up the call
stack to the inner most frame at which point the frame is displayed as
normal, with the location for the address being looked up in the line
table.

As GDB uses the last line table entry for an address as "the" line to
report for that address it is critical that GDB maintain the order of
the line table entries.  In the first case, by reordering the line
table we report the wrong location.

I had to make a small adjustment in find_pc_sect_line in order to
correctly find the previous line in the line table.  In some line
tables I was seeing an actual line entry and an end of sequence marker
at the same address, before this commit these would reorder to move
the end of sequence marker before the line entry (end of sequence has
line number 0).  Now the end of sequence marker remains in its correct
location, and in order to find a previous line we should step backward
over any end of sequence markers.

As an example, the binary:
  gdb/testsuite/outputs/gdb.dwarf2/dw2-ranges-func/dw2-ranges-func-lo-cold

Has this line table before the patch:

  INDEX    LINE ADDRESS
  0          48 0x0000000000400487
  1         END 0x000000000040048e
  2          52 0x000000000040048e
  3          54 0x0000000000400492
  4          56 0x0000000000400497
  5         END 0x000000000040049a
  6          62 0x000000000040049a
  7         END 0x00000000004004a1
  8          66 0x00000000004004a1
  9          68 0x00000000004004a5
  10         70 0x00000000004004aa
  11         72 0x00000000004004b9
  12        END 0x00000000004004bc
  13         76 0x00000000004004bc
  14         78 0x00000000004004c0
  15         80 0x00000000004004c5
  16        END 0x00000000004004cc

And after this patch:

  INDEX    LINE ADDRESS
  0          48 0x0000000000400487
  1          52 0x000000000040048e
  2         END 0x000000000040048e
  3          54 0x0000000000400492
  4          56 0x0000000000400497
  5         END 0x000000000040049a
  6          62 0x000000000040049a
  7          66 0x00000000004004a1
  8         END 0x00000000004004a1
  9          68 0x00000000004004a5
  10         70 0x00000000004004aa
  11         72 0x00000000004004b9
  12        END 0x00000000004004bc
  13         76 0x00000000004004bc
  14         78 0x00000000004004c0
  15         80 0x00000000004004c5
  16        END 0x00000000004004cc

When calling find_pc_sect_line with the address 0x000000000040048e, in
both cases we find entry #3, we then try to find the previous entry,
which originally found this entry '2         52 0x000000000040048e',
after the patch it finds '2         END 0x000000000040048e', which
cases the lookup to fail.

By skipping the END marker after this patch we get back to the correct
entry, which is now #1: '1          52 0x000000000040048e', and
everything works again.

gdb/ChangeLog:

	* buildsym.c (lte_is_less_than): Delete.
	(buildsym_compunit::end_symtab_with_blockvector): Create local
	lambda function to sort line table entries, and use
	std::stable_sort instead of std::sort.
	* symtab.c (find_pc_sect_line): Skip backward over end of sequence
	markers when looking for a previous line.

gdb/testsuite/ChangeLog:

	* gdb.dwarf2/dw2-inline-stepping.c: New file.
	* gdb.dwarf2/dw2-inline-stepping.exp: New file.

Change-Id: Ia0309494be4cfd9dcc554f30209477f5f040b21b
2020-01-24 23:43:16 +00:00
6c2659886f gdb: add back declarations for _initialize functions
I'd like to enable the -Wmissing-declarations warning.  However, it
warns for every _initialize function, for example:

      CXX    dcache.o
    /home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’:
    /home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations]
     _initialize_dcache (void)
     ^~~~~~~~~~~~~~~~~~

The only practical way forward I found is to add back the declarations,
which were removed by this commit:

    commit 481695ed5f6e0a8a9c9c50bfac1cdd2b3151e6c9
    Author: John Baldwin <jhb@FreeBSD.org>
    Date:   Sat Sep 9 11:02:37 2017 -0700

        Remove unnecessary function prototypes.

I don't think it's a big problem to have the declarations for these
functions, but if anybody has a better solution for this, I'll be happy
to use it.

gdb/ChangeLog:

	* aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration.
	* aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration.
	* aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration.
	* aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration.
	* aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration.
	* aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration.
	* ada-exp.y (_initialize_ada_exp): Add declaration.
	* ada-lang.c (_initialize_ada_language): Add declaration.
	* ada-tasks.c (_initialize_tasks): Add declaration.
	* agent.c (_initialize_agent): Add declaration.
	* aix-thread.c (_initialize_aix_thread): Add declaration.
	* alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration.
	* alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration.
	* alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration.
	* alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration.
	* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration.
	* alpha-tdep.c (_initialize_alpha_tdep): Add declaration.
	* amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration.
	* amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration.
	* amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration.
	* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration.
	* amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration.
	* amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration.
	* amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration.
	* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration.
	* amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration.
	* amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration.
	* amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration.
	* amd64-tdep.c (_initialize_amd64_tdep): Add declaration.
	* amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration.
	* amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration.
	* annotate.c (_initialize_annotate): Add declaration.
	* arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration.
	* arc-tdep.c (_initialize_arc_tdep): Add declaration.
	* arch-utils.c (_initialize_gdbarch_utils): Add declaration.
	* arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration.
	* arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration.
	* arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration.
	* arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration.
	* arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration.
	* arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration.
	* arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration.
	* arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration.
	* arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration.
	* arm-tdep.c (_initialize_arm_tdep): Add declaration.
	* arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration.
	* auto-load.c (_initialize_auto_load): Add declaration.
	* auxv.c (_initialize_auxv): Add declaration.
	* avr-tdep.c (_initialize_avr_tdep): Add declaration.
	* ax-gdb.c (_initialize_ax_gdb): Add declaration.
	* bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration.
	* bfin-tdep.c (_initialize_bfin_tdep): Add declaration.
	* break-catch-sig.c (_initialize_break_catch_sig): Add declaration.
	* break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration.
	* break-catch-throw.c (_initialize_break_catch_throw): Add declaration.
	* breakpoint.c (_initialize_breakpoint): Add declaration.
	* bsd-uthread.c (_initialize_bsd_uthread): Add declaration.
	* btrace.c (_initialize_btrace): Add declaration.
	* charset.c (_initialize_charset): Add declaration.
	* cli/cli-cmds.c (_initialize_cli_cmds): Add declaration.
	* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
	* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
	* cli/cli-logging.c (_initialize_cli_logging): Add declaration.
	* cli/cli-script.c (_initialize_cli_script): Add declaration.
	* cli/cli-style.c (_initialize_cli_style): Add declaration.
	* coff-pe-read.c (_initialize_coff_pe_read): Add declaration.
	* coffread.c (_initialize_coffread): Add declaration.
	* compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration.
	* compile/compile.c (_initialize_compile): Add declaration.
	* complaints.c (_initialize_complaints): Add declaration.
	* completer.c (_initialize_completer): Add declaration.
	* copying.c (_initialize_copying): Add declaration.
	* corefile.c (_initialize_core): Add declaration.
	* corelow.c (_initialize_corelow): Add declaration.
	* cp-abi.c (_initialize_cp_abi): Add declaration.
	* cp-namespace.c (_initialize_cp_namespace): Add declaration.
	* cp-support.c (_initialize_cp_support): Add declaration.
	* cp-valprint.c (_initialize_cp_valprint): Add declaration.
	* cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration.
	* cris-tdep.c (_initialize_cris_tdep): Add declaration.
	* csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration.
	* csky-tdep.c (_initialize_csky_tdep): Add declaration.
	* ctfread.c (_initialize_ctfread): Add declaration.
	* d-lang.c (_initialize_d_language): Add declaration.
	* darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration.
	* darwin-nat.c (_initialize_darwin_nat): Add declaration.
	* dbxread.c (_initialize_dbxread): Add declaration.
	* dcache.c (_initialize_dcache): Add declaration.
	* disasm-selftests.c (_initialize_disasm_selftests): Add declaration.
	* disasm.c (_initialize_disasm): Add declaration.
	* dtrace-probe.c (_initialize_dtrace_probe): Add declaration.
	* dummy-frame.c (_initialize_dummy_frame): Add declaration.
	* dwarf-index-cache.c (_initialize_index_cache): Add declaration.
	* dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration.
	* dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration.
	* dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration.
	* dwarf2expr.c (_initialize_dwarf2expr): Add declaration.
	* dwarf2loc.c (_initialize_dwarf2loc): Add declaration.
	* dwarf2read.c (_initialize_dwarf2_read): Add declaration.
	* elfread.c (_initialize_elfread): Add declaration.
	* exec.c (_initialize_exec): Add declaration.
	* extension.c (_initialize_extension): Add declaration.
	* f-lang.c (_initialize_f_language): Add declaration.
	* f-valprint.c (_initialize_f_valprint): Add declaration.
	* fbsd-nat.c (_initialize_fbsd_nat): Add declaration.
	* fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration.
	* filesystem.c (_initialize_filesystem): Add declaration.
	* findcmd.c (_initialize_mem_search): Add declaration.
	* findvar.c (_initialize_findvar): Add declaration.
	* fork-child.c (_initialize_fork_child): Add declaration.
	* frame-base.c (_initialize_frame_base): Add declaration.
	* frame-unwind.c (_initialize_frame_unwind): Add declaration.
	* frame.c (_initialize_frame): Add declaration.
	* frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration.
	* frv-tdep.c (_initialize_frv_tdep): Add declaration.
	* ft32-tdep.c (_initialize_ft32_tdep): Add declaration.
	* gcore.c (_initialize_gcore): Add declaration.
	* gdb-demangle.c (_initialize_gdb_demangle): Add declaration.
	* gdb_bfd.c (_initialize_gdb_bfd): Add declaration.
	* gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration.
	* gdbarch.c (_initialize_gdbarch): Add declaration.
	* gdbtypes.c (_initialize_gdbtypes): Add declaration.
	* gnu-nat.c (_initialize_gnu_nat): Add declaration.
	* gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration.
	* gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration.
	* go-lang.c (_initialize_go_language): Add declaration.
	* go32-nat.c (_initialize_go32_nat): Add declaration.
	* guile/guile.c (_initialize_guile): Add declaration.
	* h8300-tdep.c (_initialize_h8300_tdep): Add declaration.
	* hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration.
	* hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration.
	* hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration.
	* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration.
	* hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration.
	* hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration.
	* hppa-tdep.c (_initialize_hppa_tdep): Add declaration.
	* i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration.
	* i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration.
	* i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration.
	* i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration.
	* i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration.
	* i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration.
	* i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration.
	* i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration.
	* i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration.
	* i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration.
	* i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration.
	* i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration.
	* i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration.
	* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration.
	* i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration.
	* i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration.
	* i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration.
	* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration.
	* i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration.
	* i386-tdep.c (_initialize_i386_tdep): Add declaration.
	* i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration.
	* ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration.
	* ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration.
	* ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration.
	* ia64-tdep.c (_initialize_ia64_tdep): Add declaration.
	* ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration.
	* infcall.c (_initialize_infcall): Add declaration.
	* infcmd.c (_initialize_infcmd): Add declaration.
	* inflow.c (_initialize_inflow): Add declaration.
	* infrun.c (_initialize_infrun): Add declaration.
	* interps.c (_initialize_interpreter): Add declaration.
	* iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration.
	* jit.c (_initialize_jit): Add declaration.
	* language.c (_initialize_language): Add declaration.
	* linux-fork.c (_initialize_linux_fork): Add declaration.
	* linux-nat.c (_initialize_linux_nat): Add declaration.
	* linux-tdep.c (_initialize_linux_tdep): Add declaration.
	* linux-thread-db.c (_initialize_thread_db): Add declaration.
	* lm32-tdep.c (_initialize_lm32_tdep): Add declaration.
	* m2-lang.c (_initialize_m2_language): Add declaration.
	* m32c-tdep.c (_initialize_m32c_tdep): Add declaration.
	* m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration.
	* m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration.
	* m32r-tdep.c (_initialize_m32r_tdep): Add declaration.
	* m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration.
	* m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration.
	* m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration.
	* m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration.
	* m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration.
	* m68k-tdep.c (_initialize_m68k_tdep): Add declaration.
	* machoread.c (_initialize_machoread): Add declaration.
	* macrocmd.c (_initialize_macrocmd): Add declaration.
	* macroscope.c (_initialize_macroscope): Add declaration.
	* maint-test-options.c (_initialize_maint_test_options): Add declaration.
	* maint-test-settings.c (_initialize_maint_test_settings): Add declaration.
	* maint.c (_initialize_maint_cmds): Add declaration.
	* mdebugread.c (_initialize_mdebugread): Add declaration.
	* memattr.c (_initialize_mem): Add declaration.
	* mep-tdep.c (_initialize_mep_tdep): Add declaration.
	* mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration.
	* mi/mi-cmds.c (_initialize_mi_cmds): Add declaration.
	* mi/mi-interp.c (_initialize_mi_interp): Add declaration.
	* mi/mi-main.c (_initialize_mi_main): Add declaration.
	* microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration.
	* microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration.
	* mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration.
	* mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration.
	* mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration.
	* mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration.
	* mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration.
	* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration.
	* mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration.
	* mips-tdep.c (_initialize_mips_tdep): Add declaration.
	* mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration.
	* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration.
	* mipsread.c (_initialize_mipsread): Add declaration.
	* mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration.
	* mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration.
	* moxie-tdep.c (_initialize_moxie_tdep): Add declaration.
	* msp430-tdep.c (_initialize_msp430_tdep): Add declaration.
	* nds32-tdep.c (_initialize_nds32_tdep): Add declaration.
	* nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration.
	* nios2-tdep.c (_initialize_nios2_tdep): Add declaration.
	* nto-procfs.c (_initialize_procfs): Add declaration.
	* objc-lang.c (_initialize_objc_language): Add declaration.
	* observable.c (_initialize_observer): Add declaration.
	* opencl-lang.c (_initialize_opencl_language): Add declaration.
	* or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration.
	* or1k-tdep.c (_initialize_or1k_tdep): Add declaration.
	* osabi.c (_initialize_gdb_osabi): Add declaration.
	* osdata.c (_initialize_osdata): Add declaration.
	* p-valprint.c (_initialize_pascal_valprint): Add declaration.
	* parse.c (_initialize_parse): Add declaration.
	* ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration.
	* ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration.
	* ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration.
	* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration.
	* ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration.
	* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration.
	* ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration.
	* ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration.
	* printcmd.c (_initialize_printcmd): Add declaration.
	* probe.c (_initialize_probe): Add declaration.
	* proc-api.c (_initialize_proc_api): Add declaration.
	* proc-events.c (_initialize_proc_events): Add declaration.
	* proc-service.c (_initialize_proc_service): Add declaration.
	* procfs.c (_initialize_procfs): Add declaration.
	* producer.c (_initialize_producer): Add declaration.
	* psymtab.c (_initialize_psymtab): Add declaration.
	* python/python.c (_initialize_python): Add declaration.
	* ravenscar-thread.c (_initialize_ravenscar): Add declaration.
	* record-btrace.c (_initialize_record_btrace): Add declaration.
	* record-full.c (_initialize_record_full): Add declaration.
	* record.c (_initialize_record): Add declaration.
	* regcache-dump.c (_initialize_regcache_dump): Add declaration.
	* regcache.c (_initialize_regcache): Add declaration.
	* reggroups.c (_initialize_reggroup): Add declaration.
	* remote-notif.c (_initialize_notif): Add declaration.
	* remote-sim.c (_initialize_remote_sim): Add declaration.
	* remote.c (_initialize_remote): Add declaration.
	* reverse.c (_initialize_reverse): Add declaration.
	* riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration.
	* riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration.
	* riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration.
	* riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration.
	* riscv-tdep.c (_initialize_riscv_tdep): Add declaration.
	* rl78-tdep.c (_initialize_rl78_tdep): Add declaration.
	* rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration.
	* rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep):
	Add declaration.
	* rs6000-nat.c (_initialize_rs6000_nat): Add declaration.
	* rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration.
	* run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration.
	* rust-exp.y (_initialize_rust_exp): Add declaration.
	* rx-tdep.c (_initialize_rx_tdep): Add declaration.
	* s12z-tdep.c (_initialize_s12z_tdep): Add declaration.
	* s390-linux-nat.c (_initialize_s390_nat): Add declaration.
	* s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration.
	* s390-tdep.c (_initialize_s390_tdep): Add declaration.
	* score-tdep.c (_initialize_score_tdep): Add declaration.
	* ser-go32.c (_initialize_ser_dos): Add declaration.
	* ser-mingw.c (_initialize_ser_windows): Add declaration.
	* ser-pipe.c (_initialize_ser_pipe): Add declaration.
	* ser-tcp.c (_initialize_ser_tcp): Add declaration.
	* ser-uds.c (_initialize_ser_socket): Add declaration.
	* ser-unix.c (_initialize_ser_hardwire): Add declaration.
	* serial.c (_initialize_serial): Add declaration.
	* sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration.
	* sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration.
	* sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration.
	* sh-tdep.c (_initialize_sh_tdep): Add declaration.
	* skip.c (_initialize_step_skip): Add declaration.
	* sol-thread.c (_initialize_sol_thread): Add declaration.
	* solib-aix.c (_initialize_solib_aix): Add declaration.
	* solib-darwin.c (_initialize_darwin_solib): Add declaration.
	* solib-dsbt.c (_initialize_dsbt_solib): Add declaration.
	* solib-frv.c (_initialize_frv_solib): Add declaration.
	* solib-svr4.c (_initialize_svr4_solib): Add declaration.
	* solib-target.c (_initialize_solib_target): Add declaration.
	* solib.c (_initialize_solib): Add declaration.
	* source-cache.c (_initialize_source_cache): Add declaration.
	* source.c (_initialize_source): Add declaration.
	* sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration.
	* sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration.
	* sparc-nat.c (_initialize_sparc_nat): Add declaration.
	* sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration.
	* sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration.
	* sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration.
	* sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration.
	* sparc-tdep.c (_initialize_sparc_tdep): Add declaration.
	* sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration.
	* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration.
	* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration.
	* sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration.
	* sparc64-nat.c (_initialize_sparc64_nat): Add declaration.
	* sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration.
	* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration.
	* sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration.
	* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration.
	* sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration.
	* sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration.
	* stabsread.c (_initialize_stabsread): Add declaration.
	* stack.c (_initialize_stack): Add declaration.
	* stap-probe.c (_initialize_stap_probe): Add declaration.
	* std-regs.c (_initialize_frame_reg): Add declaration.
	* symfile-debug.c (_initialize_symfile_debug): Add declaration.
	* symfile-mem.c (_initialize_symfile_mem): Add declaration.
	* symfile.c (_initialize_symfile): Add declaration.
	* symmisc.c (_initialize_symmisc): Add declaration.
	* symtab.c (_initialize_symtab): Add declaration.
	* target.c (_initialize_target): Add declaration.
	* target-connection.c (_initialize_target_connection): Add
	declaration.
	* target-dcache.c (_initialize_target_dcache): Add declaration.
	* target-descriptions.c (_initialize_target_descriptions): Add declaration.
	* thread.c (_initialize_thread): Add declaration.
	* tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration.
	* tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration.
	* tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration.
	* tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration.
	* tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration.
	* tracectf.c (_initialize_ctf): Add declaration.
	* tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration.
	* tracefile.c (_initialize_tracefile): Add declaration.
	* tracepoint.c (_initialize_tracepoint): Add declaration.
	* tui/tui-hooks.c (_initialize_tui_hooks): Add declaration.
	* tui/tui-interp.c (_initialize_tui_interp): Add declaration.
	* tui/tui-layout.c (_initialize_tui_layout): Add declaration.
	* tui/tui-regs.c (_initialize_tui_regs): Add declaration.
	* tui/tui-stack.c (_initialize_tui_stack): Add declaration.
	* tui/tui-win.c (_initialize_tui_win): Add declaration.
	* tui/tui.c (_initialize_tui): Add declaration.
	* typeprint.c (_initialize_typeprint): Add declaration.
	* ui-style.c (_initialize_ui_style): Add declaration.
	* unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration.
	* unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration.
	* unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration.
	* unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration.
	* unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration.
	* unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration.
	* unittests/filtered_iterator-selftests.c
	(_initialize_filtered_iterator_selftests): Add declaration.
	* unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration.
	* unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration.
	* unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration.
	* unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration.
	* unittests/main-thread-selftests.c
	(_initialize_main_thread_selftests): Add declaration.
	* unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration.
	* unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration.
	* unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration.
	* unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration.
	* unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration.
	* unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration.
	* unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration.
	* unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration.
	* unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration.
	* unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration.
	* unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration.
	* unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration.
	* unittests/style-selftests.c (_initialize_style_selftest): Add declaration.
	* unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration.
	* unittests/tui-selftests.c (_initialize_tui_selftest): Add
	declaration.
	* unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration.
	* unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration.
	* unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration.
	* unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration.
	* user-regs.c (_initialize_user_regs): Add declaration.
	* utils.c (_initialize_utils): Add declaration.
	* v850-tdep.c (_initialize_v850_tdep): Add declaration.
	* valops.c (_initialize_valops): Add declaration.
	* valprint.c (_initialize_valprint): Add declaration.
	* value.c (_initialize_values): Add declaration.
	* varobj.c (_initialize_varobj): Add declaration.
	* vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration.
	* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration.
	* vax-tdep.c (_initialize_vax_tdep): Add declaration.
	* windows-nat.c (_initialize_windows_nat): Add declaration.
	(_initialize_check_for_gdb_ini): Add declaration.
	(_initialize_loadable): Add declaration.
	* windows-tdep.c (_initialize_windows_tdep): Add declaration.
	* x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration.
	* x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration.
	* xcoffread.c (_initialize_xcoffread): Add declaration.
	* xml-support.c (_initialize_xml_support): Add declaration.
	* xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration.
	* xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration.
	* xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration.
	* xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration.

Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
2020-01-13 14:01:38 -05:00
57d7500265 Fix memory leak of the demangled symbol name
compute_and_set_names would only free the name if we did not find the name
in the hashtable, but it needs to always free it.  Solve this by moving the
smart pointer outside the if.

Thanks to PhilippeW for finding this.

gdb/ChangeLog:

2020-01-09  Christian Biesinger  <cbiesinger@google.com>

	* symtab.c (general_symbol_info::compute_and_set_names): Move the
	unique_xmalloc_ptr outside the if to always free the demangled name.

Change-Id: Id7c6b8408432183700ccb5ff634818d6c5a3ac95
2020-01-09 13:13:04 -06:00
6a053cb1ff Change section_offsets to a std::vector
This changes section_offsets to be specialization of a std::vector and
updates all the users.  It also removes the ANOFFSET and
SIZEOF_N_SECTION_OFFSETS macros.

Most of this is just a generic sort of cleanup, that reduces the
number of lines of code.  However, a couple spots were doing weird
things.

objfile_relocate did:

-      std::vector<struct section_offsets>
-	new_debug_offsets (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections));

... which seems to greatly over-estimate the number of elements
needed.

This appeared in set_objfile_default_section_offset:

-  std::vector<struct section_offsets> offsets (objf->num_sections,
-					       { { offset } });

... which makes sense due to type safety, but is also actively
confusing given that section_offsets was previously also a kind of
vector type.

Tested on x86-64 Fedora 30.

gdb/ChangeLog
2020-01-08  Tom Tromey  <tromey@adacore.com>

	* xcoffread.c (enter_line_range, read_xcoff_symtab)
	(process_xcoff_symbol, xcoff_symfile_offsets): Update.
	* symtab.h (MSYMBOL_VALUE_ADDRESS): Update.
	(struct section_offsets, ANOFFSET, SIZEOF_N_SECTION_OFFSETS):
	Remove.
	(section_offsets): New typedef.
	* symtab.c (fixup_section, get_msymbol_address): Update.
	* symmisc.c (dump_msymbols): Update.
	* symfile.h (relative_addr_info_to_section_offsets)
	(symfile_map_offsets_to_segments): Update.
	* symfile.c (build_section_addr_info_from_objfile)
	(init_objfile_sect_indices): Update.
	(struct place_section_arg): Change type of "offsets".
	(place_section): Update.
	(relative_addr_info_to_section_offsets): Change type of
	"section_offsets".  Remove "num_sections" parameter.
	(default_symfile_offsets, syms_from_objfile_1)
	(set_objfile_default_section_offset): Update.
	(reread_symbols): No need to preserve section offsets by hand.
	(symfile_map_offsets_to_segments): Change type of "offsets".
	* stap-probe.c (relocate_address): Update.
	* stabsread.h (process_one_symbol): Update.
	* solib-target.c (struct lm_info_target) <offsets>: Change type.
	(solib_target_relocate_section_addresses): Update.
	* solib-svr4.c (enable_break, svr4_relocate_main_executable):
	Update.
	* solib-frv.c (frv_relocate_main_executable): Update.
	* solib-dsbt.c (dsbt_relocate_main_executable): Update.
	* solib-aix.c (solib_aix_get_section_offsets): Change return
	type.
	(solib_aix_solib_create_inferior_hook): Update.
	* remote.c (remote_target::get_offsets): Update.
	* psymtab.c (find_pc_sect_psymtab): Update.
	* psympriv.h (struct partial_symbol) <address, text_low,
	text_high>: Update.
	* objfiles.h (obj_section_offset): Update.
	(struct objfile) <section_offsets>: Change type.
	<num_sections>: Remove.
	(objfile_relocate): Update.
	* objfiles.c (entry_point_address_query): Update
	(relocate_one_symbol): Change type of "section_offsets".
	(objfile_relocate1, objfile_relocate1): Change type of
	"new_offsets".
	(objfile_rebase1): Update.
	* mipsread.c (mipscoff_symfile_read): Update.
	(read_alphacoff_dynamic_symtab): Remove "section_offsets"
	parameter.
	* mdebugread.c (parse_symbol): Change type of "section_offsets".
	(parse_external, psymtab_to_symtab_1): Update.
	* machoread.c (macho_symfile_offsets): Update.
	* ia64-tdep.c (ia64_find_unwind_table): Update.
	* hppa-tdep.c (read_unwind_info): Update.
	* hppa-bsd-tdep.c (hppabsd_find_global_pointer): Update.
	* dwarf2read.c (create_addrmap_from_index)
	(create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab)
	(process_psymtab_comp_unit_reader, add_partial_symbol)
	(add_partial_subprogram, process_full_comp_unit)
	(read_file_scope, read_func_scope, read_lexical_block_scope)
	(read_call_site_scope, dwarf2_rnglists_process)
	(dwarf2_ranges_process, dwarf2_ranges_read)
	(dwarf_decode_lines_1, var_decode_location, new_symbol)
	(dwarf2_fetch_die_loc_sect_off, dwarf2_per_cu_text_offset):
	Update.
	* dwarf2-frame.c (execute_cfa_program, dwarf2_frame_find_fde):
	Update.
	* dtrace-probe.c (dtrace_probe::get_relocated_address): Update.
	* dbxread.c (read_dbx_symtab, read_ofile_symtab): Update.
	(process_one_symbol): Change type of "section_offsets".
	* ctfread.c (get_objfile_text_range): Update.
	* coffread.c (coff_symtab_read, enter_linenos)
	(process_coff_symbol): Update.
	* coff-pe-read.c (add_pe_forwarded_sym): Update.
	* amd64-windows-tdep.c (amd64_windows_find_unwind_info): Update.

Change-Id: I147eb967e9b44d82f4048039de7bb44b80cd72fb
2020-01-08 15:32:41 -07:00
b811d2c292 Update copyright year range in all GDB files.
gdb/ChangeLog:

        Update copyright year range in all GDB files.
2020-01-01 10:20:53 +04:00
4d4eaa3005 Make symbol_set_names a member function
This also renames it to make it clearer that this is not a cheap
function (to compute_and_set_names).  Also renames name to m_name
to make the implementation of the renamed function more readable.

Most of the places that access sym->m_name directly were also changed
to call linkage_name () instead, to make it clearer which name they
are accessing.

gdb/ChangeLog:

2019-12-26  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_decode_symbol): Update.
	* buildsym.c (add_symbol_to_list): Update.
	* coffread.c (process_coff_symbol): Update.
	* ctfread.c (ctf_add_enum_member_cb): Update.
	(new_symbol): Update.
	(ctf_add_var_cb): Update.
	* dwarf2read.c (fixup_go_packaging): Update.
	(dwarf2_compute_name): Update.
	(new_symbol): Update.
	* jit.c (finalize_symtab): Update.
	* language.c (language_alloc_type_symbol): Update.
	* mdebugread.c (new_symbol): Update.
	* minsyms.c (minimal_symbol_reader::record_full): Update.
	(minimal_symbol_reader::install): Update.
	* psymtab.c (print_partial_symbols): Update.
	(psymbol_hash): Update.
	(psymbol_compare): Update.
	(add_psymbol_to_bcache): Update.
	(maintenance_check_psymtabs): Update.
	* stabsread.c (define_symbol): Update.
	* symtab.c (symbol_set_names): Rename to...
	(general_symbol_info::compute_and_set_names): ...this.
	(general_symbol_info::natural_name): Update.
	(general_symbol_info::search_name): Update.
	(fixup_section): Update.
	* symtab.h (struct general_symbol_info) <name>: Rename to...
	<m_name>: ...this.
	<compute_and_set_names>: Rename from...
	(symbol_set_names): ...this.
	(SYMBOL_SET_NAMES): Remove.
	(struct symbol) <ctor>: Update.

Change-Id: I8da1f10cab4e0b89f19d5750fa4e6e2ac8d2b24f
2019-12-27 01:41:35 -03:00