From 41d998a6830b3ee58bdde684a4f7908c320aad66 Mon Sep 17 00:00:00 2001 From: Greg McGary Date: Sat, 29 Jul 2000 08:11:47 +0000 Subject: Update. 2000-07-29 Greg McGary * 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. --- sysdeps/generic/backtrace.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'sysdeps/generic/backtrace.c') diff --git a/sysdeps/generic/backtrace.c b/sysdeps/generic/backtrace.c index b9242b587b..f743b56b4b 100644 --- a/sysdeps/generic/backtrace.c +++ b/sysdeps/generic/backtrace.c @@ -1,5 +1,5 @@ /* Return backtrace of current program state. Generic version. - 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 , 1998. @@ -22,6 +22,7 @@ #include #include #include +#include /* This is a global variable set at program start time. It marks the highest used stack address. */ @@ -54,7 +55,7 @@ extern void *__libc_stack_end; /* By default assume the `next' pointer in struct layout points to the next struct layout. */ #ifndef ADVANCE_STACK_FRAME -# define ADVANCE_STACK_FRAME(next) ((struct layout *) (next)) +# define ADVANCE_STACK_FRAME(next) BOUNDED_1 ((struct layout *) (next)) #endif int @@ -63,15 +64,15 @@ __backtrace (array, size) int size; { struct layout *current; - void *top_frame; - void *top_stack; + void *__unbounded top_frame; + void *__unbounded top_stack; int cnt = 0; top_frame = __builtin_frame_address (0); top_stack = CURRENT_STACK_FRAME; /* We skip the call to this function, it makes no sense to record it. */ - current = (struct layout *) top_frame; + current = BOUNDED_1 ((struct layout *) top_frame); while (cnt < size) { if ((void *) current INNER_THAN top_stack -- cgit 1.4.1