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authorAlex Barcelo <abarcelo@ac.upc.edu>2012-02-09 23:55:46 +0000
committerAlexander Graf <agraf@suse.de>2012-03-15 13:12:10 +0100
commit32a2003af9cb0cb11b3992fd3248cb89752c53e9 (patch)
tree5abe6db595501da363dad4a7152db86e7f489b25
parentae7d54d489540b49b7c13a7df7ddc220588a2ced (diff)
Bad zero comparison for sas_ss_flags on powerpc
All architectures work the same way, and all check for sas_ss_flags == 0. The powerpc lines are wrong, and do the check the other way round (it's a qemu internal check, which is done wrong only for this architecture, it's more a typo than a bug). It's NOT ppc specific, it's POSIX standard (sigaltstack) and qemu internal. I have a test source that I will send in a follow-up (it's longer than I would have wished, I'm sure that a better test case can be written if needed) Signed-off-by: Alex Barcelo <abarcelo@ac.upc.edu> Signed-off-by: Alexander Graf <agraf@suse.de>
-rw-r--r--linux-user/signal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c
index fca51e2b1..b1e139d6f 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -4118,7 +4118,7 @@ static target_ulong get_sigframe(struct target_sigaction *ka,
oldsp = env->gpr[1];
if ((ka->sa_flags & TARGET_SA_ONSTACK) &&
- (sas_ss_flags(oldsp))) {
+ (sas_ss_flags(oldsp) == 0)) {
oldsp = (target_sigaltstack_used.ss_sp
+ target_sigaltstack_used.ss_size);
}