/* corefile.c
- Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 1999-2019 Free Software Foundation, Inc.
This file is part of GNU Binutils.
\f
#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"
+#include <limits.h> /* For UINT_MAX. */
bfd *core_bfd;
static int core_num_syms;
extern void i386_find_call (Sym *, bfd_vma, bfd_vma);
extern void alpha_find_call (Sym *, bfd_vma, bfd_vma);
extern void vax_find_call (Sym *, bfd_vma, bfd_vma);
-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)
static int
cmp_symbol_map (const void * l, const void * r)
{
- return strcmp (((struct function_map *) l)->function_name,
+ return strcmp (((struct function_map *) l)->function_name,
((struct function_map *) r)->function_name);
}
+#define BUFSIZE (1024)
+/* This is BUFSIZE - 1 as a string. Suitable for use in fprintf/sscanf format strings. */
+#define STR_BUFSIZE "1023"
+
static void
read_function_mappings (const char *filename)
{
FILE * file = fopen (filename, "r");
- char dummy[1024];
+ char dummy[BUFSIZE];
int count = 0;
unsigned int i;
{
int matches;
- matches = fscanf (file, "%[^\n:]", dummy);
+ matches = fscanf (file, "%" STR_BUFSIZE "[^\n:]", dummy);
if (!matches)
parse_error (filename);
}
/* Don't care what else is on this line at this point. */
- matches = fscanf (file, "%[^\n]\n", dummy);
+ matches = fscanf (file, "%" STR_BUFSIZE "[^\n]\n", dummy);
if (!matches)
parse_error (filename);
count++;
int matches;
char *tmp;
- matches = fscanf (file, "%[^\n:]", dummy);
+ matches = fscanf (file, "%" STR_BUFSIZE "[^\n:]", dummy);
if (!matches)
parse_error (filename);
}
/* 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. */
- matches = fscanf (file, "%[^\n]\n", dummy);
+ matches = fscanf (file, "%" STR_BUFSIZE "[^\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++;
}
symbol_map_count = count;
for (i = 0; i < symbol_map_count; ++i)
- if (i == 0 || strcmp (symbol_map[i].file_name, symbol_map[i - 1].file_name))
+ 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
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++)
switch (bfd_get_arch (core_bfd))
{
case bfd_arch_vax:
- case bfd_arch_tahoe:
offset_to_code = 2;
break;
sparc_find_call (parent, p_lowpc, p_highpc);
break;
- case bfd_arch_tahoe:
- tahoe_find_call (parent, p_lowpc, p_highpc);
- break;
-
case bfd_arch_mips:
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));
if (*name == '$')
return 0;
- /* Do not discard nested subprograms (those
- which end with .NNN, where N are digits). */
- if (*name == '.')
- for (name++; *name; name++)
- if (! ISDIGIT (*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
}
}
+static char buf[BUFSIZE];
+static char address[BUFSIZE];
+static char name[BUFSIZE];
+
/* Return number of symbols in a symbol-table file. */
-static int
+static unsigned 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;
-
+ unsigned int num = 0;
+
while (!feof (f) && fgets (buf, BUFSIZE - 1, f))
{
- if (sscanf (buf, "%s %c %s", address, &type, name) == 3)
+ if (sscanf (buf, "%" STR_BUFSIZE "s %c %" STR_BUFSIZE "s", address, &type, name) == 3)
if (type == 't' || type == 'T')
- ++num;
+ {
+ /* PR 20499 - prevent integer overflow computing argument to xmalloc. */
+ if (++num >= UINT_MAX / sizeof (Sym))
+ return -1U;
+ }
}
- free (buf);
- free (address);
- free (name);
-
return num;
}
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;
fprintf (stderr, _("%s: file `%s' has no symbols\n"), whoami, sym_table_file);
done (1);
}
+ else if (symtab.len == -1U)
+ {
+ fprintf (stderr, _("%s: file `%s' has too many symbols\n"),
+ whoami, sym_table_file);
+ done (1);
+ }
symtab.base = (Sym *) xmalloc (symtab.len * sizeof (Sym));
done (1);
}
- while (!feof (f) && fgets (buf, sizeof (buf), f))
+ while (!feof (f) && fgets (buf, BUFSIZE - 1, f))
{
- if (sscanf (buf, "%s %c %s", address, &type, name) == 3)
- if (type != 't' && type != 'T')
- continue;
+ if (sscanf (buf, "%" STR_BUFSIZE "s %c %" STR_BUFSIZE "s", address, &type, name) != 3)
+ continue;
+ if (type != 't' && type != 'T')
+ continue;
sym_init (symtab.limit);
symtab.len = symtab.limit - symtab.base;
symtab_finalize (&symtab);
-
- free (buf);
- free (address);
- free (name);
}
static int
{
bfd_vma min_vma = ~ (bfd_vma) 0;
bfd_vma max_vma = 0;
- int class;
+ int cxxclass;
long i;
- struct function_map * found;
+ 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_som_flavour:
+ core_has_func_syms = 1;
+ }
/* Pass 1 - determine upper bound on number of function names. */
symtab.len = 0;
/* 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. */
- found = bsearch (core_syms[i]->name, symbol_map, symbol_map_count,
- sizeof (struct function_map), search_mapped_symbol);
+ 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;
}
{
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;
}
- found = bsearch (core_syms[i]->name, symbol_map, symbol_map_count,
- sizeof (struct function_map), search_mapped_symbol);
+ 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;
}
}
- symtab.limit->is_func = (core_syms[i]->flags & BSF_FUNCTION) != 0;
+ 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
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);
The old way called symtab_finalize before the is_static pass,
causing a problem since symtab_finalize uses is_static as part of
its address conflict resolution algorithm. Since global symbols
- were prefered over static symbols, and all line symbols were
+ were preferred over static symbols, and all line symbols were
global at that point, static function names that conflicted with
their own line numbers (static, but labeled as global) were
rejected in favor of the line num.
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. */
projects / deliverable / binutils-gdb.git / blobdiff