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authorGreg McGary <greg@mcgary.org>2000-07-29 08:11:47 +0000
committerGreg McGary <greg@mcgary.org>2000-07-29 08:11:47 +0000
commit41d998a6830b3ee58bdde684a4f7908c320aad66 (patch)
treeccf14ab4c678ef83f88475698ca60b34008c5fa7 /sysdeps/i386/backtrace.c
parentf2897624e20cfc8e89fc30c8e8e1619ebbc1aacf (diff)
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Update.
2000-07-29 Greg McGary <greg@mcgary.org> * Rules (test-bp-inputs, make-test-out): New variables. ($(objpfx)%-bp.out): New rule. ($(objpfx)%.out): Rewrite in terms of new variables. * libio/iovswscanf.c (vswscanf): Pass _IO_FILE_plus pointer to internal function that uses vtable. * libio/vsnprintf.c (_IO_vsnprintf): Likewise. * libio/vswprintf.c (_IO_vswprintf): Likewise. * malloc/malloc.c (mem2chunk): Define in terms of chunk_at_offset. (malloc_extend_top): Convert brk to chunk using chunk_at_offset. (chunk_align): Likewise. * time/asctime.c (ab_day_name, ab_month_name): Rewrite expression in a way that conforms to decl, and avoids spurious bounds violation. * sysdeps/arm/frame.h (struct layout): Make pointers __unbounded. * sysdeps/generic/frame.h: Likewise. * sysdeps/generic/backtrace.c (ADVANCE_STACK_FRAME): Wrap bounds around return value. (__backtrace): Qualify frame-pointer chain and return address pointers as __unbounded. Wrap bounds around variable `current'. * sysdeps/generic/segfault.c (ADVANCE_STACK_FRAME): Wrap bounds around return value. (catch_segfault): Qualify frame-pointer chain and return address pointers as __unbounded. Wrap bounds around variable `current'. * sysdeps/i386/backtrace.c (struct layout): Make pointers __unbounded. (ADVANCE_STACK_FRAME): Wrap bounds around return value. * sysdeps/powerpc/backtrace.c (struct layout): Make pointers __unbounded. (__backtrace): Qualify frame-pointer chain and return address pointers as __unbounded. Wrap bounds around variable `current'. * sysdeps/i386/addmul_1.S: s2_limb is scalar so remove bounds check. * sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/submul_1.S: Likewise. * sysdeps/i386/i586/addmul_1.S: Likewise. * sysdeps/i386/i586/mul_1.S: Add bounds checks. * sysdeps/i386/i586/submul_1.S: Likewise.
Diffstat (limited to 'sysdeps/i386/backtrace.c')
-rw-r--r--sysdeps/i386/backtrace.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/sysdeps/i386/backtrace.c b/sysdeps/i386/backtrace.c
index 38635988f4..b2b92f796a 100644
--- a/sysdeps/i386/backtrace.c
+++ b/sysdeps/i386/backtrace.c
@@ -1,5 +1,5 @@
/* Return backtrace of current program state.
- Copyright (C) 1998 Free Software Foundation, Inc.
+ Copyright (C) 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
@@ -19,6 +19,7 @@
Boston, MA 02111-1307, USA. */
#include <execinfo.h>
+#include <bp-checks.h>
/* This is a global variable set at program start time. It marks the
@@ -36,8 +37,8 @@ extern void *__libc_stack_end;
*/
struct layout
{
- struct layout *next;
- void *return_address;
+ struct layout *__unbounded next;
+ void *__unbounded return_address;
};
int
@@ -52,7 +53,7 @@ __backtrace (array, size)
int cnt = 0;
/* We skip the call to this function, it makes no sense to record it. */
- current = (struct layout *) ebp;
+ current = BOUNDED_1 ((struct layout *) ebp);
while (cnt < size)
{
if ((void *) current < esp || (void *) current > __libc_stack_end)