/* Read a symbol table in MIPS' format (Third-Eye).
- Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994
+ Copyright 1986, 87, 89, 90, 91, 92, 93, 94, 95, 96, 1998
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.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ 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. */
+ 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., 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. */
#include "defs.h"
-#include <string.h>
+#include "gdb_string.h"
#include "bfd.h"
#include "symtab.h"
#include "symfile.h"
#include "elf/common.h"
#include "elf/mips.h"
-static void
-mipscoff_new_init PARAMS ((struct objfile *));
+extern void _initialize_mipsread (void);
-static void
-mipscoff_symfile_init PARAMS ((struct objfile *));
+static void mipscoff_new_init (struct objfile *);
-static void
-mipscoff_symfile_read PARAMS ((struct objfile *, struct section_offsets *,
- int));
+static void mipscoff_symfile_init (struct objfile *);
-static void
-mipscoff_symfile_finish PARAMS ((struct objfile *));
+static void mipscoff_symfile_read (struct objfile *, int);
-static struct section_offsets *
-mipscoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
+static void mipscoff_symfile_finish (struct objfile *);
static void
-read_alphacoff_dynamic_symtab PARAMS ((struct section_offsets *,
- struct objfile *objfile));
+read_alphacoff_dynamic_symtab (struct section_offsets *,
+ struct objfile *objfile);
/* Initialize anything that needs initializing when a completely new
symbol file is specified (not just adding some symbols from another
extern CORE_ADDR sigtramp_address;
static void
-mipscoff_new_init (ignore)
- struct objfile *ignore;
+mipscoff_new_init (struct objfile *ignore)
{
sigtramp_address = 0;
stabsread_new_init ();
/* Initialize to read a symbol file (nothing to do). */
static void
-mipscoff_symfile_init (objfile)
- struct objfile *objfile;
+mipscoff_symfile_init (struct objfile *objfile)
{
}
/* Read a symbol file from a file. */
static void
-mipscoff_symfile_read (objfile, section_offsets, mainline)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline;
+mipscoff_symfile_read (struct objfile *objfile, int mainline)
{
bfd *abfd = objfile->obfd;
- struct cleanup * back_to;
+ struct cleanup *back_to;
init_minimal_symbol_collection ();
- back_to = make_cleanup (discard_minimal_symbols, 0);
+ back_to = make_cleanup_discard_minimal_symbols ();
/* Now that the executable file is positioned at symbol table,
process it and define symbols accordingly. */
- if (ecoff_slurp_symbolic_info (abfd) == false)
+ if (!((*ecoff_backend (abfd)->debug_swap.read_debug_info)
+ (abfd, (asection *) NULL, &ecoff_data (abfd)->debug_info)))
error ("Error reading symbol table: %s", bfd_errmsg (bfd_get_error ()));
mdebug_build_psymtabs (objfile, &ecoff_backend (abfd)->debug_swap,
- &ecoff_data (abfd)->debug_info, section_offsets);
+ &ecoff_data (abfd)->debug_info);
- /* 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);
-
- if (!have_partial_symbols ())
- {
- wrap_here ("");
- printf_filtered ("(no debugging symbols found)...");
- wrap_here ("");
- }
+ read_alphacoff_dynamic_symtab (objfile->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);
}
particular objfile. */
static void
-mipscoff_symfile_finish (objfile)
- struct objfile *objfile;
+mipscoff_symfile_finish (struct objfile *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
/* Format of an alpha external ELF symbol. */
-typedef struct {
- unsigned char st_name[4]; /* Symbol name, index in string tbl */
- unsigned char st_pad[4]; /* Pad to long word boundary */
- unsigned char st_value[8]; /* Value of the symbol */
- unsigned char st_size[4]; /* Associated symbol size */
- unsigned char st_info[1]; /* Type and binding attributes */
- unsigned char st_other[1]; /* No defined meaning, 0 */
- unsigned char st_shndx[2]; /* Associated section index */
-} Elfalpha_External_Sym;
+typedef struct
+{
+ unsigned char st_name[4]; /* Symbol name, index in string tbl */
+ unsigned char st_pad[4]; /* Pad to long word boundary */
+ unsigned char st_value[8]; /* Value of the symbol */
+ unsigned char st_size[4]; /* Associated symbol size */
+ unsigned char st_info[1]; /* Type and binding attributes */
+ unsigned char st_other[1]; /* No defined meaning, 0 */
+ unsigned char st_shndx[2]; /* Associated section index */
+}
+Elfalpha_External_Sym;
/* Format of an alpha external ELF dynamic info structure. */
-typedef struct {
- unsigned char d_tag[4]; /* Tag */
- unsigned char d_pad[4]; /* Pad to long word boundary */
- union {
- unsigned char d_ptr[8]; /* Pointer value */
- unsigned char d_val[4]; /* Integer value */
- } d_un;
-} Elfalpha_External_Dyn;
+typedef struct
+ {
+ unsigned char d_tag[4]; /* Tag */
+ unsigned char d_pad[4]; /* Pad to long word boundary */
+ union
+ {
+ unsigned char d_ptr[8]; /* Pointer value */
+ unsigned char d_val[4]; /* Integer value */
+ }
+ d_un;
+ }
+Elfalpha_External_Dyn;
/* Struct to obtain the section pointers for alpha dynamic symbol info. */
-struct alphacoff_dynsecinfo {
- asection *sym_sect; /* Section pointer for .dynsym section */
- asection *str_sect; /* Section pointer for .dynstr section */
- asection *dyninfo_sect; /* Section pointer for .dynamic section */
- asection *got_sect; /* Section pointer for .got section */
-};
+struct alphacoff_dynsecinfo
+ {
+ asection *sym_sect; /* Section pointer for .dynsym section */
+ asection *str_sect; /* Section pointer for .dynstr section */
+ asection *dyninfo_sect; /* Section pointer for .dynamic section */
+ asection *got_sect; /* Section pointer for .got section */
+ };
-static void
-alphacoff_locate_sections PARAMS ((bfd *, asection *, void *));
+static void alphacoff_locate_sections (bfd *, asection *, void *);
/* We are called once per section from read_alphacoff_dynamic_symtab.
We need to examine each section we are passed, check to see
if so, stash away some access information for the section. */
static void
-alphacoff_locate_sections (ignore_abfd, sectp, sip)
- bfd *ignore_abfd;
- asection *sectp;
- PTR sip;
+alphacoff_locate_sections (bfd *ignore_abfd, asection *sectp, PTR sip)
{
register struct alphacoff_dynsecinfo *si;
add them to the minimal symbol table. */
static void
-read_alphacoff_dynamic_symtab (section_offsets, objfile)
- struct section_offsets *section_offsets;
- struct objfile *objfile;
+read_alphacoff_dynamic_symtab (struct section_offsets *section_offsets,
+ struct objfile *objfile)
{
bfd *abfd = objfile->obfd;
struct alphacoff_dynsecinfo si;
/* Locate the dynamic symbols sections and read them in. */
memset ((char *) &si, 0, sizeof (si));
- bfd_map_over_sections (abfd, alphacoff_locate_sections, (PTR) &si);
+ bfd_map_over_sections (abfd, alphacoff_locate_sections, (PTR) & si);
if (si.sym_sect == NULL
|| si.str_sect == NULL
|| si.dyninfo_sect == NULL
got_secptr = alloca (got_secsize);
if (!bfd_get_section_contents (abfd, si.sym_sect, sym_secptr,
- (file_ptr)0, sym_secsize))
+ (file_ptr) 0, sym_secsize))
return;
if (!bfd_get_section_contents (abfd, si.str_sect, str_secptr,
- (file_ptr)0, str_secsize))
+ (file_ptr) 0, str_secsize))
return;
if (!bfd_get_section_contents (abfd, si.dyninfo_sect, dyninfo_secptr,
- (file_ptr)0, dyninfo_secsize))
+ (file_ptr) 0, dyninfo_secsize))
return;
if (!bfd_get_section_contents (abfd, si.got_sect, got_secptr,
- (file_ptr)0, got_secsize))
+ (file_ptr) 0, got_secsize))
return;
/* Find the number of local GOT entries and the index for the
dyninfo_p < dyninfo_end;
dyninfo_p += sizeof (Elfalpha_External_Dyn))
{
- Elfalpha_External_Dyn *x_dynp = (Elfalpha_External_Dyn *)dyninfo_p;
+ Elfalpha_External_Dyn *x_dynp = (Elfalpha_External_Dyn *) dyninfo_p;
long dyn_tag;
dyn_tag = bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_tag);
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)
if (sym_value == 0)
{
int got_entry_offset =
- (i - dt_mips_gotsym + dt_mips_local_gotno) * got_entry_size;
+ (i - dt_mips_gotsym + dt_mips_local_gotno) * got_entry_size;
if (got_entry_offset < 0 || got_entry_offset >= got_secsize)
continue;
ms_type = mst_text;
else
ms_type = mst_file_text;
- sym_value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ sym_value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
}
else if (sym_shndx == SHN_MIPS_DATA)
{
ms_type = mst_data;
else
ms_type = mst_file_data;
- sym_value += ANOFFSET (section_offsets, SECT_OFF_DATA);
+ sym_value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
}
else if (sym_shndx == SHN_MIPS_ACOMMON)
{
ms_type = mst_bss;
else
ms_type = mst_file_bss;
- sym_value += ANOFFSET (section_offsets, SECT_OFF_BSS);
+ sym_value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile));
}
else if (sym_shndx == SHN_ABS)
{
}
}
- prim_record_minimal_symbol (obsavestring (name,
- strlen (name),
- &objfile -> symbol_obstack),
- sym_value,
- ms_type,
- objfile);
+ prim_record_minimal_symbol (name, sym_value, ms_type, objfile);
}
}
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 */
};
void
-_initialize_mipsread ()
+_initialize_mipsread (void)
{
add_symtab_fns (&ecoff_sym_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff