From 5b5d99cf4d5ded93b60fd64c6069d45e3eeab1d3 Mon Sep 17 00:00:00 2001 From: Jim Blandy Date: Thu, 23 Jan 2003 23:03:32 +0000 Subject: gdb/ChangeLog: 2003-01-23 Alexander Larsson Jim Blandy Add support for executables whose debug info has been separated out into a separate file, leaving only a link behind. * objfiles.h (struct objfile): New fields: separate_debug_objfile and separate_debug_objfile_backlink. (put_objfile_before): New declaration. * symfile.c: #include "filenames.h". (symbol_file_add_with_addrs_or_offsets): If this objfile has its debug info in a separate file, read that, too. Save the addrs argument, so we can use it again to read the separated debug info; syms_from_objfile modifies the table we pass it. (reread_symbols): After re-reading an objfile, call reread_separate_symbols to refresh its separate debug info objfile, if it has one. (reread_separate_symbols, find_separate_debug_file, get_debug_link_info, separate_debug_file_exists): New functions. (debug_file_directory): New global var. (_initialize_symfile): Initialize debug_file_directory, and provide the new `set debug-file-directory' command to let the user change it. * objfiles.c (free_objfile): If this objfile has its debug info in a separate objfile, free that one too. If this is itself a separate debug info objfile, clear our parent's backlink. (put_objfile_before): New function. * utils.c (gnu_debuglink_crc32): New function. * defs.h (gnu_debuglink_crc32): New declaration. * Makefile.in (symfile.o): Note dependency on "filenames.h". * configure.in: Handle --with-separate-debug-dir config option. * acinclude.m4 (AC_DEFINE_DIR): New macro. * acconfig.h (DEBUGDIR): New macro. * configure, aclocal.m4, config.in: Regenerated. gdb/doc/ChangeLog: 2003-01-23 Jim Blandy * gdb.texinfo (Separate Debug Files): New section. --- gdb/objfiles.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'gdb/objfiles.c') diff --git a/gdb/objfiles.c b/gdb/objfiles.c index ae1613d..d62b28f 100644 --- a/gdb/objfiles.c +++ b/gdb/objfiles.c @@ -333,6 +333,30 @@ allocate_objfile (bfd *abfd, int flags) return (objfile); } +/* Put one object file before a specified on in the global list. + This can be used to make sure an object file is destroyed before + another when using ALL_OBJFILES_SAFE to free all objfiles. */ +void +put_objfile_before (struct objfile *objfile, struct objfile *before_this) +{ + struct objfile **objp; + + unlink_objfile (objfile); + + for (objp = &object_files; *objp != NULL; objp = &((*objp)->next)) + { + if (*objp == before_this) + { + objfile->next = *objp; + *objp = objfile; + return; + } + } + + internal_error (__FILE__, __LINE__, + "put_objfile_before: before objfile not in list"); +} + /* Put OBJFILE at the front of the list. */ void @@ -405,6 +429,18 @@ unlink_objfile (struct objfile *objfile) void free_objfile (struct objfile *objfile) { + if (objfile->separate_debug_objfile) + { + free_objfile (objfile->separate_debug_objfile); + } + + if (objfile->separate_debug_objfile_backlink) + { + /* We freed the separate debug file, make sure the base objfile + doesn't reference it. */ + objfile->separate_debug_objfile_backlink->separate_debug_objfile = NULL; + } + /* First do any symbol file specific actions required when we are finished with a particular symbol file. Note that if the objfile is using reusable symbol information (via mmalloc) then each of -- cgit v1.1