/* corefile.c
- Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1999-2014 Free Software Foundation, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
\f
-#include "libiberty.h"
#include "gprof.h"
+#include "libiberty.h"
+#include "filenames.h"
#include "search_list.h"
#include "source.h"
#include "symtab.h"
+#include "hist.h"
#include "corefile.h"
+#include "safe-ctype.h"
bfd *core_bfd;
static int core_num_syms;
static asymbol **core_syms;
asection *core_text_sect;
-PTR core_text_space;
+void * core_text_space;
static int min_insn_size;
int offset_to_code;
/* For mapping symbols to specific .o files during file ordering. */
-struct function_map *symbol_map;
+struct function_map * symbol_map;
unsigned int symbol_map_count;
static void read_function_mappings (const char *);
extern void tahoe_find_call (Sym *, bfd_vma, bfd_vma);
extern void sparc_find_call (Sym *, bfd_vma, bfd_vma);
extern void mips_find_call (Sym *, bfd_vma, bfd_vma);
+extern void aarch64_find_call (Sym *, bfd_vma, bfd_vma);
+
+static void
+parse_error (const char *filename)
+{
+ fprintf (stderr, _("%s: unable to parse mapping file %s.\n"), whoami, filename);
+ done (1);
+}
+
+/* Compare two function_map structs based on function name.
+ We want to sort in ascending order. */
+
+static int
+cmp_symbol_map (const void * l, const void * r)
+{
+ return strcmp (((struct function_map *) l)->function_name,
+ ((struct function_map *) r)->function_name);
+}
static void
read_function_mappings (const char *filename)
{
- FILE *file = fopen (filename, "r");
+ FILE * file = fopen (filename, "r");
char dummy[1024];
int count = 0;
+ unsigned int i;
if (!file)
{
matches = fscanf (file, "%[^\n:]", dummy);
if (!matches)
- {
- fprintf (stderr, _("%s: unable to parse mapping file %s.\n"),
- whoami, filename);
- done (1);
- }
+ parse_error (filename);
/* Just skip messages about files with no symbols. */
if (!strncmp (dummy, "No symbols in ", 14))
{
- fscanf (file, "\n");
+ matches = fscanf (file, "\n");
+ if (matches == EOF)
+ parse_error (filename);
continue;
}
/* Don't care what else is on this line at this point. */
- fscanf (file, "%[^\n]\n", dummy);
+ matches = fscanf (file, "%[^\n]\n", dummy);
+ if (!matches)
+ parse_error (filename);
count++;
}
matches = fscanf (file, "%[^\n:]", dummy);
if (!matches)
- {
- fprintf (stderr, _("%s: unable to parse mapping file %s.\n"),
- whoami, filename);
- done (1);
- }
+ parse_error (filename);
/* Just skip messages about files with no symbols. */
if (!strncmp (dummy, "No symbols in ", 14))
{
- fscanf (file, "\n");
+ matches = fscanf (file, "\n");
+ if (matches == EOF)
+ parse_error (filename);
continue;
}
/* dummy has the filename, go ahead and copy it. */
- symbol_map[count].file_name = xmalloc (strlen (dummy) + 1);
+ symbol_map[count].file_name = (char *) xmalloc (strlen (dummy) + 1);
strcpy (symbol_map[count].file_name, dummy);
/* Now we need the function name. */
- fscanf (file, "%[^\n]\n", dummy);
+ matches = fscanf (file, "%[^\n]\n", dummy);
+ if (!matches)
+ parse_error (filename);
tmp = strrchr (dummy, ' ') + 1;
- symbol_map[count].function_name = xmalloc (strlen (tmp) + 1);
+ symbol_map[count].function_name = (char *) xmalloc (strlen (tmp) + 1);
strcpy (symbol_map[count].function_name, tmp);
count++;
}
/* Record the size of the map table for future reference. */
symbol_map_count = count;
-}
+ for (i = 0; i < symbol_map_count; ++i)
+ if (i == 0
+ || filename_cmp (symbol_map[i].file_name, symbol_map[i - 1].file_name))
+ symbol_map[i].is_first = 1;
+
+ qsort (symbol_map, symbol_map_count, sizeof (struct function_map), cmp_symbol_map);
+
+ fclose (file);
+}
void
-core_init (const char *aout_name)
+core_init (const char * aout_name)
{
int core_sym_bytes;
asymbol *synthsyms;
if (!bfd_check_format (core_bfd, bfd_object))
{
- fprintf (stderr, _("%s: %s: not in a.out format\n"), whoami, aout_name);
+ fprintf (stderr, _("%s: %s: not in executable format\n"), whoami, aout_name);
done (1);
}
long i;
new_size = (core_num_syms + synth_count + 1) * sizeof (*core_syms);
- core_syms = xrealloc (core_syms, new_size);
+ core_syms = (asymbol **) xrealloc (core_syms, new_size);
symp = core_syms + core_num_syms;
core_num_syms += synth_count;
for (i = 0; i < synth_count; i++)
void
find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
{
+ if (core_text_space == 0)
+ return;
+
+ hist_clip_symbol_address (&p_lowpc, &p_highpc);
+
switch (bfd_get_arch (core_bfd))
{
case bfd_arch_i386:
mips_find_call (parent, p_lowpc, p_highpc);
break;
+ case bfd_arch_aarch64:
+ aarch64_find_call (parent, p_lowpc, p_highpc);
+ break;
+
default:
fprintf (stderr, _("%s: -c not supported on architecture %s\n"),
whoami, bfd_printable_name(core_bfd));
for (name = sym->name; *name; ++name)
{
- if (*name == '.' || *name == '$')
- return 0;
+ if (*name == '$')
+ return 0;
+
+ while (*name == '.')
+ {
+ /* Allow both nested subprograms (which end with ".NNN", where N is
+ a digit) and GCC cloned functions (which contain ".clone").
+ Allow for multiple iterations of both - apparently GCC can clone
+ clones and subprograms. */
+ int digit_seen = 0;
+#define CLONE_NAME ".clone."
+#define CLONE_NAME_LEN strlen (CLONE_NAME)
+#define CONSTPROP_NAME ".constprop."
+#define CONSTPROP_NAME_LEN strlen (CONSTPROP_NAME)
+
+ if (strlen (name) > CLONE_NAME_LEN
+ && strncmp (name, CLONE_NAME, CLONE_NAME_LEN) == 0)
+ name += CLONE_NAME_LEN - 1;
+
+ else if (strlen (name) > CONSTPROP_NAME_LEN
+ && strncmp (name, CONSTPROP_NAME, CONSTPROP_NAME_LEN) == 0)
+ name += CONSTPROP_NAME_LEN - 1;
+
+ for (name++; *name; name++)
+ if (digit_seen && *name == '.')
+ break;
+ else if (ISDIGIT (*name))
+ digit_seen = 1;
+ else
+ return 0;
+ }
}
/* On systems where the C compiler adds an underscore to all
else
{
DBG (AOUTDEBUG, printf ("[get_src_info] no info for 0x%lx (%s:%d,%s)\n",
- (long) addr, fname ? fname : "<unknown>", l,
+ (unsigned long) addr,
+ fname ? fname : "<unknown>", l,
func_name ? func_name : "<unknown>"));
return FALSE;
}
}
+/* Return number of symbols in a symbol-table file. */
+
+static int
+num_of_syms_in (FILE * f)
+{
+ const int BUFSIZE = 1024;
+ char * buf = (char *) xmalloc (BUFSIZE);
+ char * address = (char *) xmalloc (BUFSIZE);
+ char type;
+ char * name = (char *) xmalloc (BUFSIZE);
+ int num = 0;
+
+ while (!feof (f) && fgets (buf, BUFSIZE - 1, f))
+ {
+ if (sscanf (buf, "%s %c %s", address, &type, name) == 3)
+ if (type == 't' || type == 'T')
+ ++num;
+ }
+
+ free (buf);
+ free (address);
+ free (name);
+
+ return num;
+}
+
+/* Read symbol table from a file. */
+
+void
+core_create_syms_from (const char * sym_table_file)
+{
+ const int BUFSIZE = 1024;
+ char * buf = (char *) xmalloc (BUFSIZE);
+ char * address = (char *) xmalloc (BUFSIZE);
+ char type;
+ char * name = (char *) xmalloc (BUFSIZE);
+ bfd_vma min_vma = ~(bfd_vma) 0;
+ bfd_vma max_vma = 0;
+ FILE * f;
+
+ f = fopen (sym_table_file, "r");
+ if (!f)
+ {
+ fprintf (stderr, _("%s: could not open %s.\n"), whoami, sym_table_file);
+ done (1);
+ }
+
+ /* Pass 1 - determine upper bound on number of function names. */
+ symtab.len = num_of_syms_in (f);
+
+ if (symtab.len == 0)
+ {
+ fprintf (stderr, _("%s: file `%s' has no symbols\n"), whoami, sym_table_file);
+ done (1);
+ }
+
+ symtab.base = (Sym *) xmalloc (symtab.len * sizeof (Sym));
+
+ /* Pass 2 - create symbols. */
+ symtab.limit = symtab.base;
+
+ if (fseek (f, 0, SEEK_SET) != 0)
+ {
+ perror (sym_table_file);
+ done (1);
+ }
+
+ while (!feof (f) && fgets (buf, BUFSIZE - 1, f))
+ {
+ if (sscanf (buf, "%s %c %s", address, &type, name) == 3)
+ if (type != 't' && type != 'T')
+ continue;
+
+ sym_init (symtab.limit);
+
+ sscanf (address, "%" BFD_VMA_FMT "x", &(symtab.limit->addr) );
+
+ symtab.limit->name = (char *) xmalloc (strlen (name) + 1);
+ strcpy ((char *) symtab.limit->name, name);
+ symtab.limit->mapped = 0;
+ symtab.limit->is_func = TRUE;
+ symtab.limit->is_bb_head = TRUE;
+ symtab.limit->is_static = (type == 't');
+ min_vma = MIN (symtab.limit->addr, min_vma);
+ max_vma = MAX (symtab.limit->addr, max_vma);
+
+ ++symtab.limit;
+ }
+ fclose (f);
+
+ symtab.len = symtab.limit - symtab.base;
+ symtab_finalize (&symtab);
+
+ free (buf);
+ free (address);
+ free (name);
+}
+
+static int
+search_mapped_symbol (const void * l, const void * r)
+{
+ return strcmp ((const char *) l, ((const struct function_map *) r)->function_name);
+}
+
/* Read in symbol table from core.
One symbol per function is entered. */
void
-core_create_function_syms ()
+core_create_function_syms (void)
{
- bfd_vma min_vma = ~(bfd_vma) 0;
+ bfd_vma min_vma = ~ (bfd_vma) 0;
bfd_vma max_vma = 0;
- int class;
- long i, found, skip;
- unsigned int j;
+ int cxxclass;
+ long i;
+ struct function_map * found = NULL;
+ int core_has_func_syms = 0;
+
+ switch (core_bfd->xvec->flavour)
+ {
+ default:
+ break;
+ case bfd_target_coff_flavour:
+ case bfd_target_ecoff_flavour:
+ case bfd_target_xcoff_flavour:
+ case bfd_target_elf_flavour:
+ case bfd_target_nlm_flavour:
+ case bfd_target_som_flavour:
+ core_has_func_syms = 1;
+ }
/* Pass 1 - determine upper bound on number of function names. */
symtab.len = 0;
if (!core_sym_class (core_syms[i]))
continue;
- /* This should be replaced with a binary search or hashed
- search. Gross.
-
- Don't create a symtab entry for a function that has
+ /* Don't create a symtab entry for a function that has
a mapping to a file, unless it's the first function
in the file. */
- skip = 0;
- for (j = 0; j < symbol_map_count; j++)
- if (!strcmp (core_syms[i]->name, symbol_map[j].function_name))
- {
- if (j > 0 && ! strcmp (symbol_map [j].file_name,
- symbol_map [j - 1].file_name))
- skip = 1;
- break;
- }
-
- if (!skip)
+ if (symbol_map_count != 0)
+ {
+ /* Note: some systems (SunOS 5.8) crash if bsearch base argument
+ is NULL. */
+ found = (struct function_map *) bsearch
+ (core_syms[i]->name, symbol_map, symbol_map_count,
+ sizeof (struct function_map), search_mapped_symbol);
+ }
+ if (found == NULL || found->is_first)
++symtab.len;
}
done (1);
}
- /* The "+ 2" is for the sentinels. */
- symtab.base = (Sym *) xmalloc ((symtab.len + 2) * sizeof (Sym));
+ symtab.base = (Sym *) xmalloc (symtab.len * sizeof (Sym));
/* Pass 2 - create symbols. */
symtab.limit = symtab.base;
{
asection *sym_sec;
- class = core_sym_class (core_syms[i]);
+ cxxclass = core_sym_class (core_syms[i]);
- if (!class)
+ if (!cxxclass)
{
DBG (AOUTDEBUG,
printf ("[core_create_function_syms] rejecting: 0x%lx %s\n",
continue;
}
- /* This should be replaced with a binary search or hashed
- search. Gross. */
- skip = 0;
- found = 0;
-
- for (j = 0; j < symbol_map_count; j++)
- if (!strcmp (core_syms[i]->name, symbol_map[j].function_name))
- {
- if (j > 0 && ! strcmp (symbol_map [j].file_name,
- symbol_map [j - 1].file_name))
- skip = 1;
- else
- found = j;
- break;
- }
-
- if (skip)
+ if (symbol_map_count != 0)
+ {
+ /* Note: some systems (SunOS 5.8) crash if bsearch base argument
+ is NULL. */
+ found = (struct function_map *) bsearch
+ (core_syms[i]->name, symbol_map, symbol_map_count,
+ sizeof (struct function_map), search_mapped_symbol);
+ }
+ if (found && ! found->is_first)
continue;
sym_init (symtab.limit);
if (sym_sec)
symtab.limit->addr += bfd_get_section_vma (sym_sec->owner, sym_sec);
- if (symbol_map_count
- && !strcmp (core_syms[i]->name, symbol_map[found].function_name))
+ if (found)
{
- symtab.limit->name = symbol_map[found].file_name;
+ symtab.limit->name = found->file_name;
symtab.limit->mapped = 1;
}
else
/* Lookup filename and line number, if we can. */
{
- const char *filename, *func_name;
+ const char * filename;
+ const char * func_name;
- if (get_src_info (symtab.limit->addr, &filename, &func_name,
- &symtab.limit->line_num))
+ if (get_src_info (symtab.limit->addr, & filename, & func_name,
+ & symtab.limit->line_num))
{
symtab.limit->file = source_file_lookup_path (filename);
}
}
- symtab.limit->is_func = TRUE;
+ symtab.limit->is_func = (!core_has_func_syms
+ || (core_syms[i]->flags & BSF_FUNCTION) != 0);
symtab.limit->is_bb_head = TRUE;
- if (class == 't')
+ if (cxxclass == 't')
symtab.limit->is_static = TRUE;
/* Keep track of the minimum and maximum vma addresses used by all
else
max_vma = MAX (symtab.limit->addr, max_vma);
- /* If we see "main" without an initial '_', we assume names
- are *not* prefixed by '_'. */
- if (symtab.limit->name[0] == 'm' && discard_underscores
- && strcmp (symtab.limit->name, "main") == 0)
- discard_underscores = 0;
-
DBG (AOUTDEBUG, printf ("[core_create_function_syms] %ld %s 0x%lx\n",
(long) (symtab.limit - symtab.base),
symtab.limit->name,
++symtab.limit;
}
- /* Create sentinels. */
- sym_init (symtab.limit);
- symtab.limit->name = "<locore>";
- symtab.limit->addr = 0;
- symtab.limit->end_addr = min_vma - 1;
- ++symtab.limit;
-
- sym_init (symtab.limit);
- symtab.limit->name = "<hicore>";
- symtab.limit->addr = max_vma + 1;
- symtab.limit->end_addr = ~(bfd_vma) 0;
- ++symtab.limit;
-
symtab.len = symtab.limit - symtab.base;
symtab_finalize (&symtab);
}
One symbol per line of source code is entered. */
void
-core_create_line_syms ()
+core_create_line_syms (void)
{
char *prev_name, *prev_filename;
unsigned int prev_name_len, prev_filename_len;
bfd_vma vma, min_vma = ~(bfd_vma) 0, max_vma = 0;
- Sym *prev, dummy, *sentinel, *sym;
+ Sym *prev, dummy, *sym;
const char *filename;
int prev_line_num;
Sym_Table ltab;
BFD would provide an iterator for enumerating all line infos. */
prev_name_len = PATH_MAX;
prev_filename_len = PATH_MAX;
- prev_name = xmalloc (prev_name_len);
- prev_filename = xmalloc (prev_filename_len);
+ prev_name = (char *) xmalloc (prev_name_len);
+ prev_filename = (char *) xmalloc (prev_filename_len);
ltab.len = 0;
prev_line_num = 0;
|| (prev_line_num == dummy.line_num
&& prev_name != NULL
&& strcmp (prev_name, dummy.name) == 0
- && strcmp (prev_filename, filename) == 0))
+ && filename_cmp (prev_filename, filename) == 0))
continue;
++ltab.len;
{
prev_name_len = len + 1024;
free (prev_name);
- prev_name = xmalloc (prev_name_len);
+ prev_name = (char *) xmalloc (prev_name_len);
}
strcpy (prev_name, dummy.name);
{
prev_filename_len = len + 1024;
free (prev_filename);
- prev_filename = xmalloc (prev_filename_len);
+ prev_filename = (char *) xmalloc (prev_filename_len);
}
strcpy (prev_filename, filename);
if (!get_src_info (vma, &filename, <ab.limit->name, <ab.limit->line_num)
|| (prev && prev->line_num == ltab.limit->line_num
&& strcmp (prev->name, ltab.limit->name) == 0
- && strcmp (prev->file->name, filename) == 0))
+ && filename_cmp (prev->file->name, filename) == 0))
continue;
/* Make name pointer a malloc'ed string. */
else
{
sym = sym_lookup(&symtab, ltab.limit->addr);
- ltab.limit->is_static = sym->is_static;
+ if (sym)
+ ltab.limit->is_static = sym->is_static;
}
prev = ltab.limit;
- /* If we see "main" without an initial '_', we assume names
- are *not* prefixed by '_'. */
- if (ltab.limit->name[0] == 'm' && discard_underscores
- && strcmp (ltab.limit->name, "main") == 0)
- discard_underscores = 0;
-
DBG (AOUTDEBUG, printf ("[core_create_line_syms] %lu %s 0x%lx\n",
(unsigned long) (ltab.limit - ltab.base),
ltab.limit->name,
++ltab.limit;
}
- /* Update sentinels. */
- sentinel = sym_lookup (&symtab, (bfd_vma) 0);
-
- if (sentinel
- && strcmp (sentinel->name, "<locore>") == 0
- && min_vma <= sentinel->end_addr)
- sentinel->end_addr = min_vma - 1;
-
- sentinel = sym_lookup (&symtab, ~(bfd_vma) 0);
-
- if (sentinel
- && strcmp (sentinel->name, "<hicore>") == 0
- && max_vma >= sentinel->addr)
- sentinel->addr = max_vma + 1;
-
/* Copy in function symbols. */
memcpy (ltab.limit, symtab.base, symtab.len * sizeof (Sym));
ltab.limit += symtab.len;