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Additions to support stabs-in-coff.

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Stan Shebs
1993-09-29 01:53:52 +00:00
parent a0ad6c0f18
commit b5b186a2cd
3 changed files with 182 additions and 18 deletions
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77
gdb/dbxread.c
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@@ -2056,6 +2056,83 @@ copy_pending (beg, endi, end)
return new;
}
/* Scan and build partial symbols for an coff symbol file.
The coff file has already been processed to get its minimal symbols.
This routine is the equivalent of dbx_symfile_init and dbx_symfile_read
rolled into one.
OBJFILE is the object file we are reading symbols from.
ADDR is the address relative to which the symbols are (e.g.
the base address of the text segment).
MAINLINE is true if we are reading the main symbol
table (as opposed to a shared lib or dynamically loaded file).
STABOFFSET and STABSIZE define the location in OBJFILE where the .stab
section exists.
STABSTROFFSET and STABSTRSIZE define the location in OBJFILE where the
.stabstr section exists.
This routine is mostly copied from dbx_symfile_init and dbx_symfile_read,
adjusted for coff details. */
void
coffstab_build_psymtabs (objfile, section_offsets, mainline,
staboffset, stabsize,
stabstroffset, stabstrsize)
struct objfile *objfile;
struct section_offsets *section_offsets;
int mainline;
file_ptr staboffset;
unsigned int stabsize;
file_ptr stabstroffset;
unsigned int stabstrsize;
{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd);
struct dbx_symfile_info *info;
/* There is already a dbx_symfile_info allocated by our caller.
It might even contain some info from the coff symtab to help us. */
info = (struct dbx_symfile_info *) objfile->sym_private;
DBX_TEXT_SECT (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
if (!DBX_TEXT_SECT (objfile))
error ("Can't find .text section in symbol file");
#define COFF_STABS_SYMBOL_SIZE 12 /* XXX FIXME XXX */
DBX_SYMBOL_SIZE (objfile) = COFF_STABS_SYMBOL_SIZE;
DBX_SYMCOUNT (objfile) = stabsize / DBX_SYMBOL_SIZE (objfile);
DBX_STRINGTAB_SIZE (objfile) = stabstrsize;
DBX_SYMTAB_OFFSET (objfile) = staboffset;
if (stabstrsize > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", stabstrsize);
DBX_STRINGTAB (objfile) = (char *)
obstack_alloc (&objfile->psymbol_obstack, stabstrsize+1);
/* Now read in the string table in one big gulp. */
val = bfd_seek (sym_bfd, stabstroffset, SEEK_SET);
if (val < 0)
perror_with_name (name);
val = bfd_read (DBX_STRINGTAB (objfile), stabstrsize, 1, sym_bfd);
if (val != stabstrsize)
perror_with_name (name);
stabsread_new_init ();
buildsym_new_init ();
free_header_files ();
init_header_files ();
processing_acc_compilation = 1;
/* In a coff file, we've already installed the minimal symbols that came
from the coff (non-stab) symbol table, so always act like an
incremental load here. */
dbx_symfile_read (objfile, section_offsets, 0);
}
/* Scan and build partial symbols for an ELF symbol file.
This ELF file has already been processed to get its minimal symbols,
and any DWARF symbols that were in it.