/* Read a symbol table in MIPS' format (Third-Eye).
- Copyright (C) 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1998, 1999, 2000, 2001, 2003, 2004, 2007 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 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.
mdebugread.c. */
#include "defs.h"
-#include "gdb_string.h"
#include "bfd.h"
#include "symtab.h"
#include "objfiles.h"
-#include "buildsym.h"
#include "stabsread.h"
+#include "mdebugread.h"
#include "coff/sym.h"
#include "coff/internal.h"
#include "libcoff.h" /* Private BFD COFF information. */
#include "libecoff.h" /* Private BFD ECOFF information. */
#include "elf/common.h"
+#include "elf/internal.h"
#include "elf/mips.h"
+#include "psymtab.h"
+
static void
-read_alphacoff_dynamic_symtab (struct section_offsets *,
+read_alphacoff_dynamic_symtab (minimal_symbol_reader &,
struct objfile *objfile);
/* Initialize anything that needs initializing when a completely new
mipscoff_new_init (struct objfile *ignore)
{
stabsread_new_init ();
- buildsym_new_init ();
}
/* Initialize to read a symbol file (nothing to do). */
/* Read a symbol file from a file. */
static void
-mipscoff_symfile_read (struct objfile *objfile, int mainline)
+mipscoff_symfile_read (struct objfile *objfile, symfile_add_flags symfile_flags)
{
bfd *abfd = objfile->obfd;
- struct cleanup *back_to;
- init_minimal_symbol_collection ();
- back_to = make_cleanup_discard_minimal_symbols ();
+ minimal_symbol_reader reader (objfile);
/* Now that the executable file is positioned at symbol table,
process it and define symbols accordingly. */
if (!((*ecoff_backend (abfd)->debug_swap.read_debug_info)
- (abfd, (asection *) NULL, &ecoff_data (abfd)->debug_info)))
+ (abfd, 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,
+ mdebug_build_psymtabs (reader, objfile, &ecoff_backend (abfd)->debug_swap,
&ecoff_data (abfd)->debug_info);
/* Add alpha coff dynamic symbols. */
- read_alphacoff_dynamic_symtab (objfile->section_offsets, objfile);
+ read_alphacoff_dynamic_symtab (reader, objfile);
/* Install any minimal symbols that have been collected as the current
- minimal symbols for this objfile. */
+ minimal symbols for this objfile. */
- install_minimal_symbols (objfile);
- do_cleanups (back_to);
+ reader.install ();
}
/* Perform any local cleanups required when we are done with 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 is used, and the representation only changes because
- longs are 64-bit on the alpha. In addition, the handling of
+ longs are 64-bit on the alpha. In addition, the handling of
text/data section indices for symbols is different from the ELF
ABI. As the BFD linker currently does not support dynamic linking
on the alpha, there seems to be no reason to pollute BFD with
them to the minimal symbol table. */
static void
-read_alphacoff_dynamic_symtab (struct section_offsets *section_offsets,
+read_alphacoff_dynamic_symtab (minimal_symbol_reader &reader,
struct objfile *objfile)
{
bfd *abfd = objfile->obfd;
struct alphacoff_dynsecinfo si;
- char *sym_secptr;
- char *str_secptr;
- char *dyninfo_secptr;
- char *got_secptr;
- bfd_size_type sym_secsize;
- bfd_size_type str_secsize;
- bfd_size_type dyninfo_secsize;
- bfd_size_type got_secsize;
int sym_count;
int i;
int stripped;
Elfalpha_External_Sym *x_symp;
- char *dyninfo_p;
- char *dyninfo_end;
+ gdb_byte *dyninfo_p;
+ gdb_byte *dyninfo_end;
int got_entry_size = 8;
int dt_mips_local_gotno = -1;
int dt_mips_gotsym = -1;
- struct cleanup *cleanups;
/* We currently only know how to handle alpha dynamic symbols. */
if (bfd_get_arch (abfd) != bfd_arch_alpha)
|| si.dyninfo_sect == NULL || si.got_sect == NULL)
return;
- sym_secsize = bfd_get_section_size (si.sym_sect);
- str_secsize = bfd_get_section_size (si.str_sect);
- dyninfo_secsize = bfd_get_section_size (si.dyninfo_sect);
- got_secsize = bfd_get_section_size (si.got_sect);
- sym_secptr = xmalloc (sym_secsize);
- cleanups = make_cleanup (free, sym_secptr);
- str_secptr = xmalloc (str_secsize);
- make_cleanup (free, str_secptr);
- dyninfo_secptr = xmalloc (dyninfo_secsize);
- make_cleanup (free, dyninfo_secptr);
- got_secptr = xmalloc (got_secsize);
- make_cleanup (free, got_secptr);
-
- if (!bfd_get_section_contents (abfd, si.sym_sect, sym_secptr,
- (file_ptr) 0, sym_secsize))
+ gdb::byte_vector sym_sec (bfd_section_size (si.sym_sect));
+ gdb::byte_vector str_sec (bfd_section_size (si.str_sect));
+ gdb::byte_vector dyninfo_sec (bfd_section_size (si.dyninfo_sect));
+ gdb::byte_vector got_sec (bfd_section_size (si.got_sect));
+
+ if (!bfd_get_section_contents (abfd, si.sym_sect, sym_sec.data (),
+ (file_ptr) 0, sym_sec.size ()))
return;
- if (!bfd_get_section_contents (abfd, si.str_sect, str_secptr,
- (file_ptr) 0, str_secsize))
+ if (!bfd_get_section_contents (abfd, si.str_sect, str_sec.data (),
+ (file_ptr) 0, str_sec.size ()))
return;
- if (!bfd_get_section_contents (abfd, si.dyninfo_sect, dyninfo_secptr,
- (file_ptr) 0, dyninfo_secsize))
+ if (!bfd_get_section_contents (abfd, si.dyninfo_sect, dyninfo_sec.data (),
+ (file_ptr) 0, dyninfo_sec.size ()))
return;
- if (!bfd_get_section_contents (abfd, si.got_sect, got_secptr,
- (file_ptr) 0, got_secsize))
+ if (!bfd_get_section_contents (abfd, si.got_sect, got_sec.data (),
+ (file_ptr) 0, got_sec.size ()))
return;
- /* Find the number of local GOT entries and the index for the the
+ /* Find the number of local GOT entries and the index for the
first dynamic symbol in the GOT. */
- for (dyninfo_p = dyninfo_secptr, dyninfo_end = dyninfo_p + dyninfo_secsize;
+ for ((dyninfo_p = dyninfo_sec.data (),
+ dyninfo_end = dyninfo_p + dyninfo_sec.size ());
dyninfo_p < dyninfo_end;
dyninfo_p += sizeof (Elfalpha_External_Dyn))
{
/* Scan all dynamic symbols and enter them into the minimal symbol
table if appropriate. */
- sym_count = sym_secsize / sizeof (Elfalpha_External_Sym);
+ sym_count = sym_sec.size () / sizeof (Elfalpha_External_Sym);
stripped = (bfd_get_symcount (abfd) == 0);
/* Skip first symbol, which is a null dummy. */
- for (i = 1, x_symp = (Elfalpha_External_Sym *) sym_secptr + 1;
+ for (i = 1, x_symp = (Elfalpha_External_Sym *) sym_sec.data () + 1;
i < sym_count;
i++, x_symp++)
{
enum minimal_symbol_type ms_type;
strx = bfd_h_get_32 (abfd, (bfd_byte *) x_symp->st_name);
- if (strx >= str_secsize)
+ if (strx >= str_sec.size ())
continue;
- name = str_secptr + strx;
+ name = (char *) (str_sec.data () + strx);
if (*name == '\0' || *name == '.')
continue;
sym_value = bfd_h_get_64 (abfd, (bfd_byte *) x_symp->st_value);
sym_info = bfd_h_get_8 (abfd, (bfd_byte *) x_symp->st_info);
sym_shndx = bfd_h_get_16 (abfd, (bfd_byte *) x_symp->st_shndx);
+ if (sym_shndx >= (SHN_LORESERVE & 0xffff))
+ sym_shndx += SHN_LORESERVE - (SHN_LORESERVE & 0xffff);
isglobal = (ELF_ST_BIND (sym_info) == STB_GLOBAL);
if (sym_shndx == SHN_UNDEF)
int got_entry_offset =
(i - dt_mips_gotsym + dt_mips_local_gotno) * got_entry_size;
- if (got_entry_offset < 0 || got_entry_offset >= got_secsize)
+ if (got_entry_offset < 0
+ || got_entry_offset >= got_sec.size ())
continue;
sym_value =
bfd_h_get_64 (abfd,
- (bfd_byte *) (got_secptr + got_entry_offset));
+ (bfd_byte *) (got_sec.data ()
+ + got_entry_offset));
if (sym_value == 0)
continue;
}
}
else
{
- /* Symbols defined in the executable itself. We only care
+ /* Symbols defined in the executable itself. We only care
about them if this is a stripped executable, otherwise
they have been retrieved from the normal symbol table
already. */
ms_type = mst_text;
else
ms_type = mst_file_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 (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 (objfile));
}
else if (sym_shndx == SHN_ABS)
{
}
}
- prim_record_minimal_symbol (name, sym_value, ms_type, objfile);
+ reader.record (name, sym_value, ms_type);
}
-
- do_cleanups (cleanups);
}
/* Initialization. */
-static struct sym_fns ecoff_sym_fns =
+static const struct sym_fns ecoff_sym_fns =
{
- bfd_target_ecoff_flavour,
- mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
- 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 */
- default_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */
- default_symfile_segments, /* sym_segments: Get segment information from
- a file. */
- NULL, /* sym_read_linetable */
- NULL /* next: pointer to next struct sym_fns */
+ mipscoff_new_init, /* init anything gbl to entire symtab */
+ mipscoff_symfile_init, /* read initial info, setup for sym_read() */
+ mipscoff_symfile_read, /* read a symbol file into symtab */
+ NULL, /* sym_read_psymbols */
+ mipscoff_symfile_finish, /* finished with file, cleanup */
+ default_symfile_offsets, /* dummy FIXME til implem sym reloc */
+ default_symfile_segments, /* Get segment information from a file. */
+ NULL,
+ default_symfile_relocate, /* Relocate a debug section. */
+ NULL, /* sym_probe_fns */
+ &psym_functions
};
-/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_mipsread (void);
-
+void _initialize_mipsread ();
void
-_initialize_mipsread (void)
+_initialize_mipsread ()
{
- add_symtab_fns (&ecoff_sym_fns);
+ add_symtab_fns (bfd_target_ecoff_flavour, &ecoff_sym_fns);
}
projects / deliverable / binutils-gdb.git / blobdiff