[compiler-rt] 2a408f2 - [TSAN] Disable clone_setns test case on PPC64 RHEL 7.9 Targets

[Kamau Bridgeman via llvm-commits]

Author: Kamau Bridgeman
Date: 2022-07-19T13:25:21-05:00
New Revision: 2a408f200cb590c003a8d015e365f759c7a5e4a1

URL: https://github.com/llvm/llvm-project/commit/2a408f200cb590c003a8d015e365f759c7a5e4a1
DIFF: https://github.com/llvm/llvm-project/commit/2a408f200cb590c003a8d015e365f759c7a5e4a1.diff

LOG: [TSAN] Disable clone_setns test case on PPC64 RHEL 7.9 Targets

The compler-rt test case tsan/Linux/clone_setns.cpp fails on
PowerPC64 RHEL 7.9 targets.
Unshare fails with errno code EINVAL.
It is unclear why this happens specifically on RHEL 7.9 and no other
operating system like Ubuntu 18 or RHEL 8.4 for example.
This patch uses marcos to disable the test case for ppc64 rhel7.9
because there are no XFAIL directives to target rhel 7.9 specifically.

Reviewed By: dvyukov

Differential Revision: https://reviews.llvm.org/D130086

Added: 
    

Modified: 
    compiler-rt/test/tsan/Linux/clone_setns.cpp

Removed: 
    


################################################################################
diff  --git a/compiler-rt/test/tsan/Linux/clone_setns.cpp b/compiler-rt/test/tsan/Linux/clone_setns.cpp
index 88acb6917d45b..1bd812ff6b6a7 100644
--- a/compiler-rt/test/tsan/Linux/clone_setns.cpp
+++ b/compiler-rt/test/tsan/Linux/clone_setns.cpp
@@ -9,7 +9,15 @@
 #include <sched.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#ifdef __linux__
+#  include <linux/version.h>
+#endif
 
+#if __PPC64__ && RHEL_MAJOR == 7 && RHEL_MINOR == 9
+#  define PPC64_RHEL7_9 1
+#endif
+
+#ifndef PPC64_RHEL7_9
 static int cloned(void *arg) {
   // Unshare can fail for other reasons, e.g. no permissions,
   // so check only the error we are interested in:
@@ -21,8 +29,10 @@ static int cloned(void *arg) {
   exit(0);
   return 0;
 }
+#endif
 
 int main() {
+#ifndef PPC64_RHEL7_9
   char stack[64 << 10] __attribute__((aligned(64)));
   int pid = clone(cloned, stack + sizeof(stack), SIGCHLD, 0);
   if (pid == -1) {
@@ -36,6 +46,7 @@ int main() {
     fprintf(stderr, "child failed: %d\n", status);
     exit(1);
   }
+#endif
   fprintf(stderr, "DONE\n");
 }