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authorUlrich Drepper <drepper@redhat.com>1998-06-17 10:24:52 +0000
committerUlrich Drepper <drepper@redhat.com>1998-06-17 10:24:52 +0000
commite021cda255e14eebecde2fc1c92446e25a2ee761 (patch)
tree6746be232f86a08ad1d4d253907fafddd47b697a /sysdeps
parent0751550d36d19aed015a210f8c5868a1ee6508ed (diff)
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Update.
1998-06-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/backtrace.c (INNER_THAN): New definition, use it to compare stack addresses.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/generic/backtrace.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/generic/backtrace.c b/sysdeps/generic/backtrace.c
index 7ac1d5f2c4..2d329e19cf 100644
--- a/sysdeps/generic/backtrace.c
+++ b/sysdeps/generic/backtrace.c
@@ -44,6 +44,11 @@ extern void *__libc_stack_end;
# define CURRENT_STACK_FRAME ({ char __csf; &__csf; })
#endif
+/* By default we assume that the stack grows downward. */
+#ifndef INNER_THAN
+# define INNER_THAN <
+#endif
+
struct layout
{
struct layout *next;
@@ -67,7 +72,8 @@ __backtrace (array, size)
current = (struct layout *) top_frame;
while (cnt < size)
{
- if ((void *) current < top_stack || (void *) current > __libc_stack_end)
+ if ((void *) current INNER_THAN top_stack
+ || !((void *) current INNER_THAN __libc_stack_end))
/* This means the address is out of range. Note that for the
toplevel we see a frame pointer with value NULL which clearly is
out of range. */