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d9eaeb59a4
The build_address_symbolic funnction filters out data symbols if
their size is set to zero. But the problem is that the COFF symbol
table (for instance) does not provide any size information, leaving
the size to its default value of zero, thus always triggering
the filter.
This shows up when trying to print the address of a global variable
when debugging a Windows executable, for instance.
gdb/ChangeLog:
* symtab.h (struct minimal_symbol) [has_size]: New field.
(MSYMBOL_SIZE): Adjust to forbid macro from being used as lvalue.
(SET_MSYMBOL_SIZE, MSYMBOL_HAS_SIZE): New macros.
* printcmd.c (build_address_symbolic): Only filter out zero-sized
minimal symbols if the symbol's size is actually known.
* minsyms.c (prim_record_minimal_symbol_full): Adjust setting
of msymbol's size field. Add comment.
* elfread.c (elf_symtab_read, elf_rel_plt_read): Use
SET_MSYMBOL_SIZE to set the minimal symbol size.
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.