Centralize the handling of attach permissions on linux in tests

Summary:
On linux we need the process to give us special permissions before we can attach to it.
Previously, the code for this was copied into every file that needed it. This moves the code to a
central place to reduce code duplication.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D15992

llvm-svn: 257319

1 files changed, 1 insertions, 16 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/process_group/main.c b/lldb/packages/Python/lldbsuite/test/functionalities/process_group/main.c
index c730c629e8b..7e986bbac65 100644
--- a/lldb/packages/Python/lldbsuite/test/functionalities/process_group/main.c
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/process_group/main.c
@@ -2,10 +2,6 @@
 #include <unistd.h>
 #include <sys/wait.h>
 
-#if defined(__linux__)
-#include <sys/prctl.h>
-#endif
-
 volatile int release_child_flag = 0;
 
 int main(int argc, char const *argv[])
@@ -61,18 +57,7 @@ int main(int argc, char const *argv[])
     }
     else
     { // child
-#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
+        lldb_enable_attach();
 
         while (! release_child_flag) // Wait for debugger to attach
             sleep(1);