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, 14 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/tools/lldb-server/main.cpp b/lldb/packages/Python/lldbsuite/test/tools/lldb-server/main.cpp
index c65b2257159..b97c6ebc18e 100644
--- a/lldb/packages/Python/lldbsuite/test/tools/lldb-server/main.cpp
+++ b/lldb/packages/Python/lldbsuite/test/tools/lldb-server/main.cpp
@@ -20,10 +20,6 @@ int pthread_threadid_np(pthread_t,__uint64_t*);
 #include <sys/syscall.h>
 #endif
 
-#if defined(__linux__)
-#include <sys/prctl.h>
-#endif
-
 static const char *const RETVAL_PREFIX               = "retval:";
 static const char *const SLEEP_PREFIX                = "sleep:";
 static const char *const STDERR_PREFIX               = "stderr:";
@@ -210,16 +206,7 @@ thread_func (void *arg)
 
 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 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)
-    const int prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
-    static_cast<void> (prctl_result);
-#endif
-#endif
+	lldb_enable_attach();
 
 	std::vector<pthread_t> threads;
 	std::unique_ptr<uint8_t[]> heap_array_up;