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| author | Greg McGary <greg@mcgary.org> | 2000-07-29 08:11:47 +0000 |
|---|---|---|
| committer | Greg McGary <greg@mcgary.org> | 2000-07-29 08:11:47 +0000 |
| commit | 41d998a6830b3ee58bdde684a4f7908c320aad66 (patch) | |
| tree | ccf14ab4c678ef83f88475698ca60b34008c5fa7 /sysdeps/powerpc | |
| parent | f2897624e20cfc8e89fc30c8e8e1619ebbc1aacf (diff) | |
| download | glibc-41d998a6830b3ee58bdde684a4f7908c320aad66.zip glibc-41d998a6830b3ee58bdde684a4f7908c320aad66.tar.gz glibc-41d998a6830b3ee58bdde684a4f7908c320aad66.tar.bz2 | |
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/powerpc')
| -rw-r--r-- | sysdeps/powerpc/backtrace.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sysdeps/powerpc/backtrace.c b/sysdeps/powerpc/backtrace.c index a89d332..fdf84f8 100644 --- a/sysdeps/powerpc/backtrace.c +++ b/sysdeps/powerpc/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. The GNU C Library is free software; you can redistribute it and/or @@ -19,6 +19,7 @@ #include <execinfo.h> #include <stddef.h> +#include <bp-checks.h> /* This is the stack layout we see with every stack frame. Note that every routine is required by the ABI to lay out the stack @@ -32,8 +33,8 @@ */ struct layout { - struct layout *next; - void *return_address; + struct layout *__unbounded next; + void *__unbounded return_address; }; int @@ -47,10 +48,11 @@ __backtrace (void **array, int size) /* Get the address on top-of-stack. */ asm volatile ("lwz %0,0(1)" : "=r"(current)); + current = BOUNDED_1 (current); for ( count = 0; current != NULL && count < size; - current = current->next, count++) + current = BOUNDED_1 (current->next), count++) array[count] = current->return_address; /* It's possible the second-last stack frame can't return |