diff options
Diffstat (limited to 'src/pal/src/exception/signal.cpp')
| -rw-r--r-- | src/pal/src/exception/signal.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/pal/src/exception/signal.cpp b/src/pal/src/exception/signal.cpp index c2c217993a..26e2a012c5 100644 --- a/src/pal/src/exception/signal.cpp +++ b/src/pal/src/exception/signal.cpp @@ -100,6 +100,10 @@ static bool registered_sigterm_handler = false; struct sigaction g_previous_activation; #endif +// Offset of the local variable containing native context in the common_signal_handler function. +// This offset is relative to the frame pointer. +int g_common_signal_handler_context_locvar_offset = 0; + /* public function definitions ************************************************/ /*++ @@ -582,6 +586,7 @@ Note: the "pointers" parameter should contain a valid exception record pointer, but the ContextRecord pointer will be overwritten. --*/ +__attribute__((noinline)) static bool common_signal_handler(int code, siginfo_t *siginfo, void *sigcontext, int numParams, ...) { sigset_t signal_set; @@ -590,6 +595,7 @@ static bool common_signal_handler(int code, siginfo_t *siginfo, void *sigcontext native_context_t *ucontext; ucontext = (native_context_t *)sigcontext; + g_common_signal_handler_context_locvar_offset = (int)((char*)&ucontext - (char*)__builtin_frame_address(0)); AllocateExceptionRecords(&exceptionRecord, &contextRecord); |