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authorStan Shebs <shebs@codesourcery.com>1999-04-26 18:34:20 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-26 18:34:20 +0000
commit7a292a7adf506b866905b06b3024c0fd411c4583 (patch)
tree5b208bb48269b8a82d5c3a5f19c87b45a62a22f4 /gdb/dbxread.c
parent1996fae84682e8ddd146215dd2959ad1ec924c09 (diff)
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import gdb-19990422 snapshot
Diffstat (limited to 'gdb/dbxread.c')
-rw-r--r--gdb/dbxread.c53
1 files changed, 48 insertions, 5 deletions
diff --git a/gdb/dbxread.c b/gdb/dbxread.c
index 0749412..f752130 100644
--- a/gdb/dbxread.c
+++ b/gdb/dbxread.c
@@ -197,6 +197,51 @@ struct complaint repeated_header_complaint =
struct complaint unclaimed_bincl_complaint =
{"N_BINCL %s not in entries for any file, at symtab pos %d", 0, 0};
+/* find_text_range --- find start and end of loadable code sections
+
+ The find_text_range function finds the shortest address range that
+ encloses all sections containing executable code, and stores it in
+ objfile's text_addr and text_size members.
+
+ dbx_symfile_read will use this to finish off the partial symbol
+ table, in some cases. */
+
+static void
+find_text_range (bfd *sym_bfd, struct objfile *objfile)
+{
+ asection *sec;
+ int found_any = 0;
+ CORE_ADDR start, end;
+
+ for (sec = sym_bfd->sections; sec; sec = sec->next)
+ if (bfd_get_section_flags (sym_bfd, sec) & SEC_CODE)
+ {
+ CORE_ADDR sec_start = bfd_section_vma (sym_bfd, sec);
+ CORE_ADDR sec_end = sec_start + bfd_section_size (sym_bfd, sec);
+
+ if (found_any)
+ {
+ if (sec_start < start) start = sec_start;
+ if (sec_end > end) end = sec_end;
+ }
+ else
+ {
+ start = sec_start;
+ end = sec_end;
+ }
+
+ found_any = 1;
+ }
+
+ if (! found_any)
+ error ("Can't find any code sections in symbol file");
+
+ DBX_TEXT_ADDR (objfile) = start;
+ DBX_TEXT_SIZE (objfile) = end - start;
+}
+
+
+
/* During initial symbol readin, we need to have a structure to keep
track of which psymtabs have which bincls in them. This structure
is used during readin to setup the list of dependencies within each
@@ -2589,11 +2634,9 @@ elfstab_build_psymtabs (objfile, section_offsets, mainline,
It might even contain some info from the ELF symtab to help us. */
info = objfile->sym_stab_info;
- text_sect = bfd_get_section_by_name (sym_bfd, ".text");
- if (!text_sect)
- error ("Can't find .text section in symbol file");
- DBX_TEXT_ADDR (objfile) = bfd_section_vma (sym_bfd, text_sect);
- DBX_TEXT_SIZE (objfile) = bfd_section_size (sym_bfd, text_sect);
+ /* Find the first and last text address. dbx_symfile_read seems to
+ want this. */
+ find_text_range (sym_bfd, objfile);
#define ELF_STABS_SYMBOL_SIZE 12 /* XXX FIXME XXX */
DBX_SYMBOL_SIZE (objfile) = ELF_STABS_SYMBOL_SIZE;