diff options
| -rw-r--r-- | lldb/test/functionalities/attach_resume/main.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lldb/test/functionalities/attach_resume/main.cpp b/lldb/test/functionalities/attach_resume/main.cpp index a93bc3c5081..f94f6747f6f 100644 --- a/lldb/test/functionalities/attach_resume/main.cpp +++ b/lldb/test/functionalities/attach_resume/main.cpp @@ -4,6 +4,10 @@ #include <chrono> #include <thread> +#if defined(__linux__) +#include <sys/prctl.h> +#endif + void *start(void *data) { int i; @@ -19,6 +23,19 @@ void *start(void *data) int main(int argc, char const *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); + static_cast<void> (prctl_result); +#endif +#endif + static const size_t nthreads = 16; std::thread threads[nthreads]; size_t i; |
