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4 Commits

Author SHA1 Message Date
Keith Seitz
ac9b8c676e Constify target_desc declarations 
This patch changes various global target_desc declarations to const, thereby
correcting a prominent source of ODR violations in PowerPC-related target code.
The majority of files/changes are mechanical const-ifications accomplished by
regenerating the C files in features/.

This also required manually updating mips-linux-tdep.h,  s390-linux-tdep.h,
nios2-tdep.h, s390-tdep.h, arch/ppc-linux-tdesc.h, arch/ppc-linux-common.c,
and rs6000-tdep.c.

Patch tested against the sourceware trybot, and fully regression tested against
our (Red Hat's) internal  test infrastructure on Rawhide aarch64, s390x, x86_64,
and powerpcle.

With this patch, I can finally enable LTO in our GDB package builds. [Tested
with a rawhide scratch build containing this patch.]

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=22395
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=24835
 2022-09-29 10:00:13 -07:00
Andrew Burgess
51a948fdf0 gdb: Have allocate_target_description return a unique_ptr 
Update allocate_target_description to return a target_desc_up, a
specialisation of unique_ptr.

This commit does not attempt to make use of the unique_ptr in the
best possible way, in almost all cases we immediately release the
pointer from within the unique_ptr and then continue as before.

There are a few places where it was easy to handle the unique_ptr, and
in these cases I've done that.

Everything under gdb/features/* is auto-regenerated.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* arch/aarch32.c (aarch32_create_target_description): Release
	unique_ptr returned from allocate_target_description.
	* arch/aarch64.c (aarch64_create_target_description): Likewise.
	* arch/amd64.c (amd64_create_target_description): Likewise.
	* arch/arc.c (arc_create_target_description): Likewise.
	* arch/arm.c (arm_create_target_description): Likewise.
	* arch/i386.c (i386_create_target_description): Likewise.
	* arch/riscv.c (riscv_create_target_description): Update return
	type.  Handle allocate_target_description returning a unique_ptr.
	(riscv_lookup_target_description): Update to handle unique_ptr.
	* arch/tic6x.c (tic6x_create_target_description): Release
	unique_ptr returned from allocate_target_description.
	* features/microblaze-with-stack-protect.c: Regenerate.
	* features/microblaze.c: Regenerate.
	* features/mips-dsp-linux.c: Regenerate.
	* features/mips-linux.c: Regenerate.
	* features/mips64-dsp-linux.c: Regenerate.
	* features/mips64-linux.c: Regenerate.
	* features/nds32.c: Regenerate.
	* features/nios2.c: Regenerate.
	* features/or1k.c: Regenerate.
	* features/rs6000/powerpc-32.c: Regenerate.
	* features/rs6000/powerpc-32l.c: Regenerate.
	* features/rs6000/powerpc-403.c: Regenerate.
	* features/rs6000/powerpc-403gc.c: Regenerate.
	* features/rs6000/powerpc-405.c: Regenerate.
	* features/rs6000/powerpc-505.c: Regenerate.
	* features/rs6000/powerpc-601.c: Regenerate.
	* features/rs6000/powerpc-602.c: Regenerate.
	* features/rs6000/powerpc-603.c: Regenerate.
	* features/rs6000/powerpc-604.c: Regenerate.
	* features/rs6000/powerpc-64.c: Regenerate.
	* features/rs6000/powerpc-64l.c: Regenerate.
	* features/rs6000/powerpc-7400.c: Regenerate.
	* features/rs6000/powerpc-750.c: Regenerate.
	* features/rs6000/powerpc-860.c: Regenerate.
	* features/rs6000/powerpc-altivec32.c: Regenerate.
	* features/rs6000/powerpc-altivec32l.c: Regenerate.
	* features/rs6000/powerpc-altivec64.c: Regenerate.
	* features/rs6000/powerpc-altivec64l.c: Regenerate.
	* features/rs6000/powerpc-e500.c: Regenerate.
	* features/rs6000/powerpc-e500l.c: Regenerate.
	* features/rs6000/powerpc-isa205-32l.c: Regenerate.
	* features/rs6000/powerpc-isa205-64l.c: Regenerate.
	* features/rs6000/powerpc-isa205-altivec32l.c: Regenerate.
	* features/rs6000/powerpc-isa205-altivec64l.c: Regenerate.
	* features/rs6000/powerpc-isa205-ppr-dscr-vsx32l.c: Regenerate.
	* features/rs6000/powerpc-isa205-ppr-dscr-vsx64l.c: Regenerate.
	* features/rs6000/powerpc-isa205-vsx32l.c: Regenerate.
	* features/rs6000/powerpc-isa205-vsx64l.c: Regenerate.
	* features/rs6000/powerpc-isa207-htm-vsx32l.c: Regenerate.
	* features/rs6000/powerpc-isa207-htm-vsx64l.c: Regenerate.
	* features/rs6000/powerpc-isa207-vsx32l.c: Regenerate.
	* features/rs6000/powerpc-isa207-vsx64l.c: Regenerate.
	* features/rs6000/powerpc-vsx32.c: Regenerate.
	* features/rs6000/powerpc-vsx32l.c: Regenerate.
	* features/rs6000/powerpc-vsx64.c: Regenerate.
	* features/rs6000/powerpc-vsx64l.c: Regenerate.
	* features/rs6000/rs6000.c: Regenerate.
	* features/rx.c: Regenerate.
	* features/s390-gs-linux64.c: Regenerate.
	* features/s390-linux32.c: Regenerate.
	* features/s390-linux32v1.c: Regenerate.
	* features/s390-linux32v2.c: Regenerate.
	* features/s390-linux64.c: Regenerate.
	* features/s390-linux64v1.c: Regenerate.
	* features/s390-linux64v2.c: Regenerate.
	* features/s390-te-linux64.c: Regenerate.
	* features/s390-tevx-linux64.c: Regenerate.
	* features/s390-vx-linux64.c: Regenerate.
	* features/s390x-gs-linux64.c: Regenerate.
	* features/s390x-linux64.c: Regenerate.
	* features/s390x-linux64v1.c: Regenerate.
	* features/s390x-linux64v2.c: Regenerate.
	* features/s390x-te-linux64.c: Regenerate.
	* features/s390x-tevx-linux64.c: Regenerate.
	* features/s390x-vx-linux64.c: Regenerate.
	* mips-tdep.c (_initialize_mips_tdep): Release unique_ptr returned
	from allocate_target_description.
	* target-descriptions.c (allocate_target_description): Update
	return type.
	(print_c_tdesc::visit_pre): Release unique_ptr returned from
	allocate_target_description.

gdbserver/ChangeLog:

	* linux-low.cc (linux_process_target::handle_extended_wait):
	Release the unique_ptr returned from allocate_target_description.
	* linux-riscv-low.cc (riscv_target::low_arch_setup): Likewise.
	* linux-x86-low.cc (tdesc_amd64_linux_no_xml): Change type.
	(tdesc_i386_linux_no_xml): Change type.
	(x86_linux_read_description): Borrow pointer from unique_ptr
	object.
	(x86_target::get_ipa_tdesc_idx): Likewise.
	(initialize_low_arch): Likewise.
	* tdesc.cc (allocate_target_description): Update return type.

gdbsupport/ChangeLog:

	* tdesc.h (allocate_target_description): Update return type.
 2020-10-08 10:14:14 +01:00
Yao Qi
6eb1e6a8c1 Use visitor pattern for "maint print c-tdesc" 
Target description can be modeled as a tree, the target description
is the root node, features are children nodes, registers and types are
grand-children nodes.  So command "maint print c-tdesc" in effect
traverse/visit each node, and print them in c.  This can be
implemented by visitor pattern, this is the first reason.  Secondly,
I want to this command prints c files in a different way for some
specific xml files, but still print c files the same way for the rest
of xml files.  Third, I even want to print xml files from target
descriptions, so that GDBserver can use it to reply GDB's query
qXfer:features:read:target.xml.

gdb:

2017-07-26  Yao Qi  <yao.qi@linaro.org>

	* target-descriptions.c (tdesc_element_visitor): New class.
	(tdesc_element): New class.
	(tdesc_reg): Inherit from tdesc_element.
	(tdesc_reg::accept): New function.
	(tdesc_type): Inherit from tdesc_element.
	(tdesc_type::accept): New function.
	(tdesc_feature): Inherit from tdesc_element.
	(tdesc_feature::accept): New function.
	(target_desc): Inherit from tdesc_element.
	(target_desc::target_desc): New.
	(target_desc::~target_desc): New.
	(target_desc::accept): New.
	(allocate_target_description): Use new.
	(free_target_description): Use delete.
	(print_c_tdesc): New class.
	(maint_print_c_tdesc_cmd): Adjust.

	* features/aarch64.c: Re-generated.
	* features/arc-arcompact.c: Re-generated.
	* features/arc-v2.c: Re-generated.
	* features/arm/arm-with-iwmmxt.c: Re-generated.
	* features/arm/arm-with-m.c: Re-generated.
	* features/arm/arm-with-m-fpa-layout.c: Re-generated.
	* features/arm/arm-with-m-vfp-d16.c: Re-generated.
	* features/arm/arm-with-neon.c: Re-generated.
	* features/arm/arm-with-vfpv2.c: Re-generated.
	* features/arm/arm-with-vfpv3.c: Re-generated.
	* features/i386/amd64-avx-avx512.c: Re-generated.
	* features/i386/amd64-avx-avx512-linux.c: Re-generated.
	* features/i386/amd64-avx.c: Re-generated.
	* features/i386/amd64-avx-linux.c: Re-generated.
	* features/i386/amd64-avx-mpx-avx512-pku.c: Re-generated.
	* features/i386/amd64-avx-mpx-avx512-pku-linux.c: Re-generated.
	* features/i386/amd64-avx-mpx.c: Re-generated.
	* features/i386/amd64-avx-mpx-linux.c: Re-generated.
	* features/i386/amd64.c: Re-generated.
	* features/i386/amd64-linux.c: Re-generated.
	* features/i386/amd64-mpx.c: Re-generated.
	* features/i386/amd64-mpx-linux.c: Re-generated.
	* features/i386/i386-avx-avx512.c: Re-generated.
	* features/i386/i386-avx-avx512-linux.c: Re-generated.
	* features/i386/i386-avx.c: Re-generated.
	* features/i386/i386-avx-linux.c: Re-generated.
	* features/i386/i386-avx-mpx-avx512-pku.c: Re-generated.
	* features/i386/i386-avx-mpx-avx512-pku-linux.c: Re-generated.
	* features/i386/i386-avx-mpx.c: Re-generated.
	* features/i386/i386-avx-mpx-linux.c: Re-generated.
	* features/i386/i386.c: Re-generated.
	* features/i386/i386-linux.c: Re-generated.
	* features/i386/i386-mmx.c: Re-generated.
	* features/i386/i386-mmx-linux.c: Re-generated.
	* features/i386/i386-mpx.c: Re-generated.
	* features/i386/i386-mpx-linux.c: Re-generated.
	* features/i386/x32-avx-avx512.c: Re-generated.
	* features/i386/x32-avx-avx512-linux.c: Re-generated.
	* features/i386/x32-avx.c: Re-generated.
	* features/i386/x32-avx-linux.c: Re-generated.
	* features/i386/x32.c: Re-generated.
	* features/i386/x32-linux.c: Re-generated.
	* features/microblaze.c: Re-generated.
	* features/microblaze-with-stack-protect.c: Re-generated.
	* features/mips64-dsp-linux.c: Re-generated.
	* features/mips64-linux.c: Re-generated.
	* features/mips-dsp-linux.c: Re-generated.
	* features/mips-linux.c: Re-generated.
	* features/nds32.c: Re-generated.
	* features/nios2.c: Re-generated.
	* features/nios2-linux.c: Re-generated.
	* features/rs6000/powerpc-32.c: Re-generated.
	* features/rs6000/powerpc-32l.c: Re-generated.
	* features/rs6000/powerpc-403.c: Re-generated.
	* features/rs6000/powerpc-403gc.c : Re-generated.
	* features/rs6000/powerpc-405.c: Re-generated.
	* features/rs6000/powerpc-505.c: Re-generated.
	* features/rs6000/powerpc-601.c: Re-generated.
	* features/rs6000/powerpc-602.c: Re-generated.
	* features/rs6000/powerpc-603.c: Re-generated.
	* features/rs6000/powerpc-604.c: Re-generated.
	* features/rs6000/powerpc-64.c: Re-generated.
	* features/rs6000/powerpc-64l.c: Re-generated.
	* features/rs6000/powerpc-7400.c: Re-generated.
	* features/rs6000/powerpc-750.c: Re-generated.
	* features/rs6000/powerpc-860.c: Re-generated.
	* features/rs6000/powerpc-altivec32.c: Re-generated.
	* features/rs6000/powerpc-altivec32l.c: Re-generated.
	* features/rs6000/powerpc-altivec64.c: Re-generated.
	* features/rs6000/powerpc-altivec64l.c: Re-generated.
	* features/rs6000/powerpc-cell32l.c: Re-generated.
	* features/rs6000/powerpc-cell64l.c: Re-generated.
	* features/rs6000/powerpc-e500.c: Re-generated.
	* features/rs6000/powerpc-e500l.c: Re-generated.
	* features/rs6000/powerpc-isa205-32l.c: Re-generated.
	* features/rs6000/powerpc-isa205-64l.c: Re-generated.
	* features/rs6000/powerpc-isa205-altivec32l.c: Re-generated.
	* features/rs6000/powerpc-isa205-altivec64l.c: Re-generated.
	* features/rs6000/powerpc-isa205-vsx32l.c: Re-generated.
	* features/rs6000/powerpc-isa205-vsx64l.c: Re-generated.
	* features/rs6000/powerpc-vsx32.c: Re-generated.
	* features/rs6000/powerpc-vsx32l.c: Re-generated.
	* features/rs6000/powerpc-vsx64.c: Re-generated.
	* features/rs6000/powerpc-vsx64l.c: Re-generated.
	* features/rs6000/rs6000.c: Re-generated.
	* features/s390-linux32.c: Re-generated.
	* features/s390-linux32v1.c: Re-generated.
	* features/s390-linux32v2.c: Re-generated.
	* features/s390-linux64.c: Re-generated.
	* features/s390-linux64v1.c: Re-generated.
	* features/s390-linux64v2.c: Re-generated.
	* features/s390-te-linux64.c: Re-generated.
	* features/s390-tevx-linux64.c: Re-generated.
	* features/s390-vx-linux64.c: Re-generated.
	* features/s390x-linux64.c: Re-generated.
	* features/s390x-linux64v1.c: Re-generated.
	* features/s390x-linux64v2.c: Re-generated.
	* features/s390x-te-linux64.c: Re-generated.
	* features/s390x-tevx-linux64.c: Re-generated.
	* features/s390x-vx-linux64.c: Re-generated.
	* features/sparc/sparc32-solaris.c: Re-generated.
	* features/sparc/sparc64-solaris.c: Re-generated.
	* features/tic6x-c62x.c: Re-generated.
	* features/tic6x-c62x-linux.c: Re-generated.
	* features/tic6x-c64x.c: Re-generated.
	* features/tic6x-c64x-linux.c: Re-generated.
	* features/tic6x-c64xp.c: Re-generated.
	* features/tic6x-c64xp-linux.c: Re-generated.
 2017-07-26 12:56:54 +01:00
Ulrich Weigand
4ac33720d6 gdb/ChangeLog: 
2013-09-13  Andreas Arnez  <arnez@linux.vnet.ibm.com>

	* NEWS: Mention TDB support.
	* features/s390-tdb.xml: New file.
	* features/s390-te-linux64.xml: New file.
	* features/s390x-te-linux64.xml: New file.
	* features/Makefile (WHICH): Add new tdescs above.
	(s390-te-linux64-expedite): Set.
	(s390x-te-linux64-expedite): Set.
	* features/s390-te-linux64.c: New file (generated).
	* features/s390x-te-linux64.c: New file (generated).
	* regformats/s390-te-linux64.dat: New file (generated).
	* regformats/s390x-te-linux64.dat: New file (generated).
	* s390-tdep.h (HWCAP_S390_HIGH_GPRS): Define.
	(HWCAP_S390_TE): Likewise.
	(S390_TDB_DWORD0_REGNUM): Likewise.
	(S390_TDB_DWORD0_REGNUM): Likewise.
	(S390_TDB_ABORT_CODE_REGNUM): Likewise.
	(S390_TDB_CONFLICT_TOKEN_REGNUM): Likewise.
	(S390_TDB_ATIA_REGNUM): Likewise.
	(S390_TDB_R0_REGNUM): Likewise.
	(S390_TDB_R1_REGNUM): Likewise.
	(S390_TDB_R2_REGNUM): Likewise.
	(S390_TDB_R3_REGNUM): Likewise.
	(S390_TDB_R4_REGNUM): Likewise.
	(S390_TDB_R5_REGNUM): Likewise.
	(S390_TDB_R6_REGNUM): Likewise.
	(S390_TDB_R7_REGNUM): Likewise.
	(S390_TDB_R8_REGNUM): Likewise.
	(S390_TDB_R9_REGNUM): Likewise.
	(S390_TDB_R10_REGNUM): Likewise.
	(S390_TDB_R11_REGNUM): Likewise.
	(S390_TDB_R12_REGNUM): Likewise.
	(S390_TDB_R13_REGNUM): Likewise.
	(S390_TDB_R14_REGNUM): Likewise.
	(S390_TDB_R15_REGNUM): Likewise.
	(S390_NUM_REGS): Increase.
	(S390_IS_TDBREGSET_REGNUM): New macro.
	(s390_regmap_tdb): Declare.
	(s390_sizeof_tdbregset): Define.
	(tdesc_s390_te_linux64): Declare.
	(tdesc_s390x_te_linux64): Likewise.
	* s390-tdep.c: Add includes for "auxv.h", <elf.h>,
	"features/s390-te-linux64.c", and "features/s390x-te-linux64.c".
	(s390_regmap_tdb): New regmap.
	(s390_supply_tdb_regset): New function.
	(s390_tdb_regset): New regset.
	(s390_linux64v2_regset_sections): Add TDB regset to list.
	(s390x_linux64v2_regset_sections): Likewise.
	(s390_regset_from_core_section): Recognize TDB core note section.
	(s390_core_read_description): If HWCAP indicates TE support,
	select tdesc_s390_te_linux64 or tdesc_s390_s390x_te_linux64.
	(s390_gdbarch_init): Handle TDB regset.
	(_initialize_s390_tdep): Initialize new tdescs.
	* s390-nat.c (HWCAP_S390_HIGH_GPRS): Remove define.
	(have_regset_tdb): New variable.
	(s390_native_supply): Support register invalidation.
	(fetch_regset): Invalidate registers if ptrace yields ENODATA.
	(check_regset): Treat ENODATA as "regset exists".
	(s390_linux_fetch_inferior_registers): Add TDB.
	(s390_read_description): Check for TDB existence and select
	appropriate tdesc.
	* gdbserver/Makefile.in (clean): Add removal of new makefile
	targets.
	(s390-te-linux64.c): New makefile target.
	(s390x-te-linux64.c): Likewise.
	* gdbserver/configure.srv (srv_regobj): Append new objects
	s390-te-linux64.o and s390x-te-linux64.o.
	(srv_xmlfiles): Append new files s390-te-linux64.xml,
	s390x-te-linux64.xml, and s390-tdb.xml.
	* gdbserver/linux-s390-low.c (init_registers_s390_te_linux64): New
	declaration.
	(tdesc_s390_te_linux64): Likewise.
	(init_registers_s390x_te_linux64): Likewise.
	(tdesc_s390x_te_linux64): Likewise.
	(s390_check_regset): Treat ENODATA as "regset exists".
	(s390_arch_setup): Add TDB regset support.
	(initialize_low_arch): Initialize registers for new tdescs.

gdb/doc/ChangeLog:
2013-09-13  Andreas Arnez  <arnez@linux.vnet.ibm.com>

	* gdb.texinfo (Decimal Floating Point format): Mention S/390.
	(Standard Target Features): Add new node to menu.
	(S/390 and System z Features): New node.

gdb/testsuite/ChangeLog:
2013-09-13  Andreas Arnez  <arnez@linux.vnet.ibm.com>

	* gdb.arch/s390-tdbregs.c: New file.
	* gdb.arch/s390-tdbregs.exp: New file.
 2013-09-13 14:17:31 +00:00