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authorPaul Pluzhnikov <ppluzhnikov@google.com>2015-08-15 11:42:43 -0700
committerPaul Pluzhnikov <ppluzhnikov@google.com>2015-08-15 11:42:43 -0700
commitd5dff793af80b6534e9fb2e4f0301993bd209a4f (patch)
treec3df534ffb1c966cb96ac71fee5cc0c4f17d3d57 /sysdeps/microblaze
parent3cda1b6d56335a101ec3de0053248f68f010eee1 (diff)
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Fix BZ #18084 -- backtrace (..., 0) dumps core on x86.
Other architectures also had bugs, or did unnecessary work.
Diffstat (limited to 'sysdeps/microblaze')
-rw-r--r--sysdeps/microblaze/backtrace.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/microblaze/backtrace.c b/sysdeps/microblaze/backtrace.c
index 24e827ac39..c043ba7681 100644
--- a/sysdeps/microblaze/backtrace.c
+++ b/sysdeps/microblaze/backtrace.c
@@ -114,6 +114,9 @@ __backtrace (void **array, int size)
   int count;
   int rc = 0;
 
+  if (size <= 0)
+    return 0;
+
   __asm__ __volatile__ ("mfs %0, rpc"
                         : "=r"(pc));