Author: labath
Date: Fri Jan 8 05:16:45 2016
New Revision: 257165
URL: http://llvm.org/viewvc/llvm-project?rev=257165&view=rev
Log:
Another fix for TestBatchMode on linux
On locked down systems (such as our buildbot) one needs to do a special dance
to allow attaching
to processes. This commit adds this code to the TestBatchMode inferior.
Modified:
lldb/trunk/packages/Python/lldbsuite/test/driver/batch_mode/main.c
Modified: lldb/trunk/packages/Python/lldbsuite/test/driver/batch_mode/main.c
URL:
http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/driver/batch_mode/main.c?rev=257165&r1=257164&r2=257165&view=diff
==============================================================================
--- lldb/trunk/packages/Python/lldbsuite/test/driver/batch_mode/main.c
(original)
+++ lldb/trunk/packages/Python/lldbsuite/test/driver/batch_mode/main.c Fri Jan
8 05:16:45 2016
@@ -2,9 +2,26 @@
#include <string.h>
#include <unistd.h>
+#if defined(__linux__)
+#include <sys/prctl.h>
+#endif
+
int
main (int argc, char **argv)
{
+#if defined(__linux__)
+ // Immediately enable any ptracer so that we can allow the stub attach
+ // operation to succeed. Some Linux kernels are locked down so that
+ // only an ancestor process can be a ptracer of a process. This
disables that
+ // restriction. Without it, attach-related stub tests will fail.
+#if defined(PR_SET_PTRACER) && defined(PR_SET_PTRACER_ANY)
+ // For now we execute on best effort basis. If this fails for
+ // some reason, so be it.
+ const int prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0,
0, 0);
+ (void) prctl_result;
+#endif
+#endif
+
int do_crash = 0;
int do_wait = 0;
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