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1998-08-28 09:22  Ulrich Drepper  <drepper@cygnus.com>

	* elf/rtld.c (process_envvars): Fix copy&paste error.

	* malloc/malloc.c (malloc_hook_ini): Don't overwrite realloc and
	memalign hook.
	(realloc_hook_ini): Don't overwrite memalign hook.
	(memalign_hook_ini): Don't overwrite malloc and memalign hooks.
	Reported by Philippe Troin <phil@fifi.org>.

	* malloc/mcheck.c (mprobe): Call checkhdr with adjusted pointer.
	Patch by Philippe Troin <phil@fifi.org>.

1998-08-26  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/generic/segfault.c (install_handler): Protect the
	non-POSIX signals with #ifdef.
	(catch_segfault): Add missing mode parameter for open.
	* debug/catchsegv.sh: Avoid termination message from shell.  Allow
	other termination signals.

1998-08-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* debug/Makefile (distribute): Add register-dump.h.

1998-08-28 10:41  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
This commit is contained in:
Ulrich Drepper 1998-08-28 09:29:49 +00:00
parent 0b49f866c5
commit 997a416551
6 changed files with 39 additions and 13 deletions
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27
ChangeLog
View File

@ -1,4 +1,29 @@
Fri Aug 28 10:41:38 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
1998-08-28 09:22 Ulrich Drepper <drepper@cygnus.com>
* elf/rtld.c (process_envvars): Fix copy&paste error.
* malloc/malloc.c (malloc_hook_ini): Don't overwrite realloc and
memalign hook.
(realloc_hook_ini): Don't overwrite memalign hook.
(memalign_hook_ini): Don't overwrite malloc and memalign hooks.
Reported by Philippe Troin <phil@fifi.org>.
* malloc/mcheck.c (mprobe): Call checkhdr with adjusted pointer.
Patch by Philippe Troin <phil@fifi.org>.
1998-08-26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/generic/segfault.c (install_handler): Protect the
non-POSIX signals with #ifdef.
(catch_segfault): Add missing mode parameter for open.
* debug/catchsegv.sh: Avoid termination message from shell. Allow
other termination signals.
1998-08-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* debug/Makefile (distribute): Add register-dump.h.
1998-08-28 10:41 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/m68k/register-dump.h: New file.

10
debug/catchsegv.sh
View File

@ -52,15 +52,17 @@ fi
segv_output=`basename "$prog"`.segv.$$
# Redirect stderr to avoid termination message from shell.
(exec 3>&2 2>/dev/null
LD_PRELOAD=${LD_PRELOAD:+${LD_PRELOAD}:}@SLIB@/libSegFault.so \
SEGFAULT_USE_ALTSTACK=1 \
SEGFAULT_OUTPUT_NAME=$segv_output \
"$prog" ${1+"$@"}
"$prog" ${1+"$@"} 2>&3 3>&-)
exval=$?
# Check for a segmentation error.
if test $exval -eq 139 && test -f "$segv_output"; then
# We caught a segmentation error. The output is in the file with the
# Check for signal termination.
if test $exval -gt 128 && test -f "$segv_output"; then
# The program caught a signal. The output is in the file with the
# name we have in SEGFAULT_OUTPUT_NAME. In the output the names of
# functions in shared objects are available, but names in the static
# part of the program are not. We use addr2line to get this information.

2
elf/rtld.c
View File

@ -1169,7 +1169,7 @@ process_envvars (enum mode *modep, int *lazyp)
/* Path where the binary is found. */
if (!__libc_enable_secure
&& memcmp (&envline[3], "ORIGIN_PATH", 11) == 0)
_dl_hwcap_mask = strtoul (&envline[15], NULL, 0);
_dl_origin_path = &envline[15];
break;
case 12:

5
malloc/malloc.c
View File

@ -1702,8 +1702,6 @@ malloc_hook_ini(sz) size_t sz;
#endif
{
__malloc_hook = NULL;
__realloc_hook = NULL;
__memalign_hook = NULL;
ptmalloc_init();
return mALLOc(sz);
}
@ -1718,7 +1716,6 @@ realloc_hook_ini(ptr, sz, caller)
{
__malloc_hook = NULL;
__realloc_hook = NULL;
__memalign_hook = NULL;
ptmalloc_init();
return rEALLOc(ptr, sz);
}
@ -1731,8 +1728,6 @@ memalign_hook_ini(sz, alignment, caller)
size_t sz; size_t alignment; const __malloc_ptr_t caller;
#endif
{
__malloc_hook = NULL;
__realloc_hook = NULL;
__memalign_hook = NULL;
ptmalloc_init();
return mEMALIGn(sz, alignment);

2
malloc/mcheck.c
View File

@ -246,5 +246,5 @@ mcheck (func)
enum mcheck_status
mprobe (__ptr_t ptr)
{
return mcheck_used ? checkhdr (ptr) : MCHECK_DISABLED;
return mcheck_used ? checkhdr (((struct hdr *) ptr) - 1) : MCHECK_DISABLED;
}

6
sysdeps/generic/segfault.c
View File

@ -90,7 +90,7 @@ catch_segfault (int signal, SIGCONTEXT ctx)
fname = getenv ("SEGFAULT_OUTPUT_NAME");
if (fname != NULL && fname[0] != '\0')
{
fd = open (fname, O_TRUNC | O_WRONLY | O_CREAT);
fd = open (fname, O_TRUNC | O_WRONLY | O_CREAT, 0666);
if (fd == -1)
fd = 2;
}
@ -182,8 +182,12 @@ install_handler (void)
INSTALL_FOR_SIG (SIGSEGV, "segv");
INSTALL_FOR_SIG (SIGILL, "ill");
#ifdef SIGBUS
INSTALL_FOR_SIG (SIGBUS, "bus");
#endif
#ifdef SIGSTKFLT
INSTALL_FOR_SIG (SIGSTKFLT, "stkflt");
#endif
INSTALL_FOR_SIG (SIGABRT, "abrt");
INSTALL_FOR_SIG (SIGFPE, "fpe");
}