From 789d29df34169e21d40bd8581c303e1b3a29f6d2 Mon Sep 17 00:00:00 2001 From: Todd Fiala Date: Sun, 26 Oct 2014 22:25:33 +0000 Subject: [PATCH] Fix up TestRegisters for Linux ptracer lock-down. All of these test fixups are prep work for when llgs is running with llgs for local process debugging, where these tests fail without the ptracer lock-down suppression. llvm-svn: 220656 --- lldb/test/functionalities/register/main.cpp | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/lldb/test/functionalities/register/main.cpp b/lldb/test/functionalities/register/main.cpp index 4877ae2..7e74322 100644 --- a/lldb/test/functionalities/register/main.cpp +++ b/lldb/test/functionalities/register/main.cpp @@ -9,8 +9,25 @@ #include #include +#if defined(__linux__) +#include +#endif + 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 (prctl_result); +#endif +#endif + char my_string[] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 0}; double my_double = 1234.5678; -- 2.7.4