summaryrefslogtreecommitdiff
path: root/pstack/rddbg.c
diff options
context:
space:
mode:
Diffstat (limited to 'pstack/rddbg.c')
-rw-r--r--pstack/rddbg.c462
1 files changed, 0 insertions, 462 deletions
diff --git a/pstack/rddbg.c b/pstack/rddbg.c
deleted file mode 100644
index be3dfc21c57..00000000000
--- a/pstack/rddbg.c
+++ /dev/null
@@ -1,462 +0,0 @@
-/* rddbg.c -- Read debugging information into a generic form.
- Copyright (C) 1995, 96, 1997 Free Software Foundation, Inc.
- Written by Ian Lance Taylor <ian@cygnus.com>.
-
- This file is part of GNU Binutils.
-
- 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.
-
- 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. */
-
-/* This file reads debugging information into a generic form. This
- file knows how to dig the debugging information out of an object
- file. */
-
-#include <bfd.h>
-#include "bucomm.h"
-#include <libiberty.h>
-#include "debug.h"
-#include "budbg.h"
-
-static boolean read_section_stabs_debugging_info
- PARAMS ((bfd *, asymbol **, long, PTR, boolean *));
-static boolean read_symbol_stabs_debugging_info
- PARAMS ((bfd *, asymbol **, long, PTR, boolean *));
-static boolean read_ieee_debugging_info PARAMS ((bfd *, PTR, boolean *));
-static void save_stab PARAMS ((int, int, bfd_vma, const char *));
-static void stab_context PARAMS ((void));
-static void free_saved_stabs PARAMS ((void));
-
-/* Read debugging information from a BFD. Returns a generic debugging
- pointer. */
-
-PTR
-read_debugging_info (abfd, syms, symcount)
- bfd *abfd;
- asymbol **syms;
- long symcount;
-{
- PTR dhandle;
- boolean found;
-
- dhandle = debug_init ();
- if (dhandle == NULL)
- return NULL;
-
- if (! read_section_stabs_debugging_info (abfd, syms, symcount, dhandle,
- &found))
- return NULL;
-
- if (bfd_get_flavour (abfd) == bfd_target_aout_flavour)
- {
- if (! read_symbol_stabs_debugging_info (abfd, syms, symcount, dhandle,
- &found))
- return NULL;
- }
-
- if (bfd_get_flavour (abfd) == bfd_target_ieee_flavour)
- {
- if (! read_ieee_debugging_info (abfd, dhandle, &found))
- return NULL;
- }
-
- /* Try reading the COFF symbols if we didn't find any stabs in COFF
- sections. */
- if (! found
- && bfd_get_flavour (abfd) == bfd_target_coff_flavour
- && symcount > 0)
- {
-#if 0
-/*
- * JZ: Do we need coff?
- */
- if (! parse_coff (abfd, syms, symcount, dhandle))
-#else
- fprintf (stderr, "%s: COFF support temporarily disabled\n",
- bfd_get_filename (abfd));
- return NULL;
-#endif
- return NULL;
- found = true;
- }
-
- if (! found)
- {
- fprintf (stderr, "%s: no recognized debugging information\n",
- bfd_get_filename (abfd));
- return NULL;
- }
-
- return dhandle;
-}
-
-/* Read stabs in sections debugging information from a BFD. */
-
-static boolean
-read_section_stabs_debugging_info (abfd, syms, symcount, dhandle, pfound)
- bfd *abfd;
- asymbol **syms;
- long symcount;
- PTR dhandle;
- boolean *pfound;
-{
- static struct
- {
- const char *secname;
- const char *strsecname;
- } names[] = { { ".stab", ".stabstr" } };
- unsigned int i;
- PTR shandle;
-
- *pfound = false;
- shandle = NULL;
-
- for (i = 0; i < sizeof names / sizeof names[0]; i++)
- {
- asection *sec, *strsec;
-
- sec = bfd_get_section_by_name (abfd, names[i].secname);
- strsec = bfd_get_section_by_name (abfd, names[i].strsecname);
- if (sec != NULL && strsec != NULL)
- {
- bfd_size_type stabsize, strsize;
- bfd_byte *stabs, *strings;
- bfd_byte *stab;
- bfd_size_type stroff, next_stroff;
-
- stabsize = bfd_section_size (abfd, sec);
- stabs = (bfd_byte *) xmalloc (stabsize);
- if (! bfd_get_section_contents (abfd, sec, stabs, 0, stabsize))
- {
- fprintf (stderr, "%s: %s: %s\n",
- bfd_get_filename (abfd), names[i].secname,
- bfd_errmsg (bfd_get_error ()));
- return false;
- }
-
- strsize = bfd_section_size (abfd, strsec);
- strings = (bfd_byte *) xmalloc (strsize);
- if (! bfd_get_section_contents (abfd, strsec, strings, 0, strsize))
- {
- fprintf (stderr, "%s: %s: %s\n",
- bfd_get_filename (abfd), names[i].strsecname,
- bfd_errmsg (bfd_get_error ()));
- return false;
- }
-
- if (shandle == NULL)
- {
- shandle = start_stab (dhandle, abfd, true, syms, symcount);
- if (shandle == NULL)
- return false;
- }
-
- *pfound = true;
-
- stroff = 0;
- next_stroff = 0;
- for (stab = stabs; stab < stabs + stabsize; stab += 12)
- {
- bfd_size_type strx;
- int type;
- int other;
- int desc;
- bfd_vma value;
-
- /* This code presumes 32 bit values. */
-
- strx = bfd_get_32 (abfd, stab);
- type = bfd_get_8 (abfd, stab + 4);
- other = bfd_get_8 (abfd, stab + 5);
- desc = bfd_get_16 (abfd, stab + 6);
- value = bfd_get_32 (abfd, stab + 8);
-
- if (type == 0)
- {
- /* Special type 0 stabs indicate the offset to the
- next string table. */
- stroff = next_stroff;
- next_stroff += value;
- }
- else
- {
- char *f, *s;
-
- f = NULL;
- s = (char *) strings + stroff + strx;
- while (s[strlen (s) - 1] == '\\'
- && stab + 12 < stabs + stabsize)
- {
- char *p;
-
- stab += 12;
- p = s + strlen (s) - 1;
- *p = '\0';
- s = concat (s,
- ((char *) strings
- + stroff
- + bfd_get_32 (abfd, stab)),
- (const char *) NULL);
-
- /* We have to restore the backslash, because, if
- the linker is hashing stabs strings, we may
- see the same string more than once. */
- *p = '\\';
-
- if (f != NULL)
- free (f);
- f = s;
- }
-
- save_stab (type, desc, value, s);
-
- if (! parse_stab (dhandle, shandle, type, desc, value, s))
- {
-#if 0
-/*
- * JZ: skip the junk.
- */
- stab_context ();
- free_saved_stabs ();
- return false;
-#endif
- }
-
- /* Don't free f, since I think the stabs code
- expects strings to hang around. This should be
- straightened out. FIXME. */
- }
- }
-
- free_saved_stabs ();
- free (stabs);
-
- /* Don't free strings, since I think the stabs code expects
- the strings to hang around. This should be straightened
- out. FIXME. */
- }
- }
-
- if (shandle != NULL)
- {
- if (! finish_stab (dhandle, shandle))
- return false;
- }
-
- return true;
-}
-
-/* Read stabs in the symbol table. */
-
-static boolean
-read_symbol_stabs_debugging_info (abfd, syms, symcount, dhandle, pfound)
- bfd *abfd;
- asymbol **syms;
- long symcount;
- PTR dhandle;
- boolean *pfound;
-{
- PTR shandle;
- asymbol **ps, **symend;
-
- shandle = NULL;
- symend = syms + symcount;
- for (ps = syms; ps < symend; ps++)
- {
- symbol_info i;
-
- bfd_get_symbol_info (abfd, *ps, &i);
-
- if (i.type == '-')
- {
- const char *s;
- char *f;
-
- if (shandle == NULL)
- {
- shandle = start_stab (dhandle, abfd, false, syms, symcount);
- if (shandle == NULL)
- return false;
- }
-
- *pfound = true;
-
- s = i.name;
- f = NULL;
- while (s[strlen (s) - 1] == '\\'
- && ps + 1 < symend)
- {
- char *sc, *n;
-
- ++ps;
- sc = xstrdup (s);
- sc[strlen (sc) - 1] = '\0';
- n = concat (sc, bfd_asymbol_name (*ps), (const char *) NULL);
- free (sc);
- if (f != NULL)
- free (f);
- f = n;
- s = n;
- }
-
- save_stab (i.stab_type, i.stab_desc, i.value, s);
-
- if (! parse_stab (dhandle, shandle, i.stab_type, i.stab_desc,
- i.value, s))
- {
- stab_context ();
- free_saved_stabs ();
- return false;
- }
-
- /* Don't free f, since I think the stabs code expects
- strings to hang around. This should be straightened out.
- FIXME. */
- }
- }
-
- free_saved_stabs ();
-
- if (shandle != NULL)
- {
- if (! finish_stab (dhandle, shandle))
- return false;
- }
-
- return true;
-}
-
-/* Read IEEE debugging information. */
-
-static boolean
-read_ieee_debugging_info (abfd, dhandle, pfound)
- bfd *abfd;
- PTR dhandle;
- boolean *pfound;
-{
- asection *dsec;
- bfd_size_type size;
- bfd_byte *contents;
-
- /* The BFD backend puts the debugging information into a section
- named .debug. */
-
- dsec = bfd_get_section_by_name (abfd, ".debug");
- if (dsec == NULL)
- return true;
-
- size = bfd_section_size (abfd, dsec);
- contents = (bfd_byte *) xmalloc (size);
- if (! bfd_get_section_contents (abfd, dsec, contents, 0, size))
- return false;
-
- if (! parse_ieee (dhandle, abfd, contents, size))
- return false;
-
- free (contents);
-
- *pfound = true;
-
- return true;
-}
-
-/* Record stabs strings, so that we can give some context for errors. */
-
-#define SAVE_STABS_COUNT (16)
-
-struct saved_stab
-{
- int type;
- int desc;
- bfd_vma value;
- char *string;
-};
-
-static struct saved_stab saved_stabs[SAVE_STABS_COUNT];
-static int saved_stabs_index;
-
-/* Save a stabs string. */
-
-static void
-save_stab (type, desc, value, string)
- int type;
- int desc;
- bfd_vma value;
- const char *string;
-{
- if (saved_stabs[saved_stabs_index].string != NULL)
- free (saved_stabs[saved_stabs_index].string);
- saved_stabs[saved_stabs_index].type = type;
- saved_stabs[saved_stabs_index].desc = desc;
- saved_stabs[saved_stabs_index].value = value;
- saved_stabs[saved_stabs_index].string = xstrdup (string);
- saved_stabs_index = (saved_stabs_index + 1) % SAVE_STABS_COUNT;
-}
-
-/* Provide context for an error. */
-
-static void
-stab_context ()
-{
- int i;
-
- fprintf (stderr, "Last stabs entries before error:\n");
- fprintf (stderr, "n_type n_desc n_value string\n");
-
- i = saved_stabs_index;
- do
- {
- struct saved_stab *stabp;
-
- stabp = saved_stabs + i;
- if (stabp->string != NULL)
- {
- const char *s;
-
- s = bfd_get_stab_name (stabp->type);
- if (s != NULL)
- fprintf (stderr, "%-6s", s);
- else if (stabp->type == 0)
- fprintf (stderr, "HdrSym");
- else
- fprintf (stderr, "%-6d", stabp->type);
- fprintf (stderr, " %-6d ", stabp->desc);
- fprintf_vma (stderr, stabp->value);
- if (stabp->type != 0)
- fprintf (stderr, " %s", stabp->string);
- fprintf (stderr, "\n");
- }
- i = (i + 1) % SAVE_STABS_COUNT;
- }
- while (i != saved_stabs_index);
-}
-
-/* Free the saved stab strings. */
-
-static void
-free_saved_stabs ()
-{
- int i;
-
- for (i = 0; i < SAVE_STABS_COUNT; i++)
- {
- if (saved_stabs[i].string != NULL)
- {
- free (saved_stabs[i].string);
- saved_stabs[i].string = NULL;
- }
- }
-
- saved_stabs_index = 0;
-}
View Lorry Controller Status