Changeset 5434000 in mainline for uspace/lib/libc/generic/stacktrace.c

Timestamp:

2010-01-02T17:51:14Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c83d2b4

Parents:

50286ec

Message:

Tail call optimization can be harmful for the functionality of stack_trace() on
some architectures.

File:

• uspace/lib/libc/generic/stacktrace.c (modified) (1 diff)

uspace/lib/libc/generic/stacktrace.c

@@ -52 +52 @@
 {
         stack_trace_fp_pc(frame_pointer_get(), program_counter_get());
+        /*
+         * Prevent the tail call optimization of the previous call by
+         * making it a non-tail call.
+         */
+        (void) frame_pointer_get();
 }