diff options
Diffstat (limited to 'gdb/objfiles.c')
| -rw-r--r-- | gdb/objfiles.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/gdb/objfiles.c b/gdb/objfiles.c index 436dcb8..123c230 100644 --- a/gdb/objfiles.c +++ b/gdb/objfiles.c @@ -74,6 +74,11 @@ int mapped_symbol_files; /* Try to use mapped symbol files */ #define TARGET_KEEP_SECTION(ASECT) 0 #endif +/* Called via bfd_map_over_sections to build up the section table that + the objfile references. The objfile contains pointers to the start + of the table (objfile->sections) and to the first location after + the end of the table (objfile->sections_end). */ + static void add_to_objfile_sections (abfd, asect, objfile_p_char) bfd *abfd; @@ -103,7 +108,19 @@ add_to_objfile_sections (abfd, asect, objfile_p_char) /* Builds a section table for OBJFILE. Returns 0 if OK, 1 on error (in which case bfd_error contains the - error). */ + error). + + Note that while we are building the table, which goes into the + psymbol obstack, we hijack the sections_end pointer to instead hold + a count of the number of sections. When bfd_map_over_sections + returns, this count is used to compute the pointer to the end of + the sections table, which then overwrites the count. + + Also note that the OFFSET and OVLY_MAPPED in each table entry + are initialized to zero. + + Also note that if anything else writes to the psymbol obstack while + we are building the table, we're pretty much hosed. */ int build_objfile_section_table (objfile) @@ -632,8 +649,7 @@ objfile_relocate (objfile, new_offsets) abfd = objfile->obfd; - for (s = objfile->sections; - s < objfile->sections_end; ++s) + ALL_OBJFILE_OSECTIONS (objfile, s) { flagword flags; @@ -944,8 +960,7 @@ find_pc_sect_section (pc, section) struct obj_section *s; struct objfile *objfile; - ALL_OBJFILES (objfile) - for (s = objfile->sections; s < objfile->sections_end; ++s) + ALL_OBJSECTIONS (objfile, s) #if defined(HPUXHPPA) if ((section == 0 || section == s->the_bfd_section) && s->addr <= pc && pc <= s->endaddr) |