malloc: bug or feature ?
James R. Van Artsalen
james at jrv.org
Fri Apr 9 01:32:17 PDT 2004
Peter Wemm wrote:
> The SEGV looks suspicious though. I wonder if malloc is trying to put
> the junk in without checking if malloc failed.
Attached is a proposed patch for this bug. It fixes the test program
(which now fails the ASSERT in main() as it ought to). I have not
tested it in any other way.
Without this change I expect every brk(2) call that fails to crash.
I haven't checked for equivalent bugs in other functions.
-------------- next part --------------
--- lib/libc/amd64/sys/brk.S.~1~ Sat May 24 12:35:23 2003
+++ lib/libc/amd64/sys/brk.S Fri Apr 9 02:02:22 2004
@@ -78,6 +78,7 @@
+ popq %rdi
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