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* coffread.c, dbxread.c, elfread.c, mipsread.c, nlmread.c,

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os9kread.c: Replace identical sym_offsets functions with
	default_symfile_offsets.
	* somread.c (som_symfile_offsets): Use new SIZEOF_SECTION_OFFSETS
	macro to allocate section_offsets.
	* symfile.c (default_symfile_offsets): New function.
	* symfile.h: Declare default_symfile_offsets.
	* symtab.h: Define SIZEOF_SECTION_OFFSETS macro to
	simplify allocation of section_offsets.
This commit is contained in:
Mark Alexander
1996-07-03 05:11:40 +00:00
parent 7647e0dd79
commit e74acce48c
11 changed files with 164 additions and 234 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
gdb/mipsread.c
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@@ -1,5 +1,5 @@
/* Read a symbol table in MIPS' format (Third-Eye).
Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994
Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
Free Software Foundation, Inc.
Contributed by Alessandro Forin (af@cs.cmu.edu) at CMU. Major work
by Per Bothner, John Gilmore and Ian Lance Taylor at Cygnus Support.
@@ -18,7 +18,7 @@ GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Read symbols from an ECOFF file. Most of the work is done in
mdebugread.c. */
@@ -54,9 +54,6 @@ mipscoff_symfile_read PARAMS ((struct objfile *, struct section_offsets *,
static void
mipscoff_symfile_finish PARAMS ((struct objfile *));
static struct section_offsets *
mipscoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
static void
read_alphacoff_dynamic_symtab PARAMS ((struct section_offsets *,
struct objfile *objfile));
@@ -108,16 +105,33 @@ mipscoff_symfile_read (objfile, section_offsets, mainline)
mdebug_build_psymtabs (objfile, &ecoff_backend (abfd)->debug_swap,
&ecoff_data (abfd)->debug_info, section_offsets);
/* Add the dynamic symbols if we are reading the main symbol table. */
/* Add alpha coff dynamic symbols. */
if (mainline)
read_alphacoff_dynamic_symtab (section_offsets, objfile);
read_alphacoff_dynamic_symtab (section_offsets, objfile);
/* Install any minimal symbols that have been collected as the current
minimal symbols for this objfile. */
install_minimal_symbols (objfile);
/* If the entry_file bounds are still unknown after processing the
partial symbols, then try to set them from the minimal symbols
surrounding the entry_point. */
if (mainline
&& objfile->ei.entry_point != INVALID_ENTRY_POINT
&& objfile->ei.entry_file_lowpc == INVALID_ENTRY_LOWPC)
{
struct minimal_symbol *m;
m = lookup_minimal_symbol_by_pc (objfile->ei.entry_point);
if (m && SYMBOL_NAME (m + 1))
{
objfile->ei.entry_file_lowpc = SYMBOL_VALUE_ADDRESS (m);
objfile->ei.entry_file_highpc = SYMBOL_VALUE_ADDRESS (m + 1);
}
}
do_cleanups (back_to);
}
@@ -130,29 +144,6 @@ mipscoff_symfile_finish (objfile)
{
}
/* Fake up identical offsets for all sections. */
static struct section_offsets *
mipscoff_symfile_offsets (objfile, addr)
struct objfile *objfile;
CORE_ADDR addr;
{
struct section_offsets *section_offsets;
int i;
objfile->num_sections = SECT_OFF_MAX;
section_offsets = ((struct section_offsets *)
obstack_alloc (&objfile->psymbol_obstack,
(sizeof (struct section_offsets)
+ (sizeof (section_offsets->offsets)
* (SECT_OFF_MAX - 1)))));
for (i = 0; i < SECT_OFF_MAX; i++)
ANOFFSET (section_offsets, i) = addr;
return section_offsets;
}
/* Alpha OSF/1 encapsulates the dynamic symbols in ELF format in a
standard coff section. The ELF format for the symbols differs from
the format defined in elf/external.h. It seems that a normal ELF 32 bit
@@ -309,12 +300,15 @@ read_alphacoff_dynamic_symtab (section_offsets, objfile)
break;
else if (dyn_tag == DT_MIPS_LOCAL_GOTNO)
{
dt_mips_local_gotno = bfd_h_get_32 (abfd,
(bfd_byte *) x_dynp->d_un.d_val);
if (dt_mips_local_gotno < 0)
dt_mips_local_gotno
= bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_un.d_val);
}
else if (dyn_tag == DT_MIPS_GOTSYM)
{
dt_mips_gotsym = bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_un.d_val);
if (dt_mips_gotsym < 0)
dt_mips_gotsym
= bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_un.d_val);
}
}
if (dt_mips_local_gotno < 0 || dt_mips_gotsym < 0)
@@ -446,7 +440,7 @@ static struct sym_fns ecoff_sym_fns =
mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */
mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */
mipscoff_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */
default_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */
NULL /* next: pointer to next struct sym_fns */
};