diff options
Diffstat (limited to 'lib/profile/InstrProfilingUtil.c')
-rw-r--r-- | lib/profile/InstrProfilingUtil.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/profile/InstrProfilingUtil.c b/lib/profile/InstrProfilingUtil.c index 321c7192cc60..fb68f30a5e1f 100644 --- a/lib/profile/InstrProfilingUtil.c +++ b/lib/profile/InstrProfilingUtil.c @@ -29,6 +29,11 @@ #include <stdlib.h> #include <string.h> +#if defined(__linux__) +#include <signal.h> +#include <sys/prctl.h> +#endif + COMPILER_RT_VISIBILITY void __llvm_profile_recursive_mkdir(char *path) { int i; @@ -219,3 +224,21 @@ COMPILER_RT_VISIBILITY const char *lprofFindLastDirSeparator(const char *Path) { #endif return Sep; } + +COMPILER_RT_VISIBILITY int lprofSuspendSigKill() { +#if defined(__linux__) + int PDeachSig = 0; + /* Temporarily suspend getting SIGKILL upon exit of the parent process. */ + if (prctl(PR_GET_PDEATHSIG, &PDeachSig) == 0 && PDeachSig == SIGKILL) + prctl(PR_SET_PDEATHSIG, 0); + return (PDeachSig == SIGKILL); +#else + return 0; +#endif +} + +COMPILER_RT_VISIBILITY void lprofRestoreSigKill() { +#if defined(__linux__) + prctl(PR_SET_PDEATHSIG, SIGKILL); +#endif +} |