src: fix incorrect SIGSEGV handling in NODE_USE_V8_WASM_TRAP_HANDLER

Pass SA_SIGINFO to sa_flags so the TrapWebAssemblyOrContinue is treated as sa_sigaction, not sa_handler, otherwise siginfo_t* info contains some garbage PR-URL: nodejs#35282 Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Rich Trott <[email protected]> Reviewed-By: Minwoo Jung <[email protected]>
joesepi · Oct 22, 2020 · 5b497d2 · 5b497d2
1 parent 07a8787
commit 5b497d2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/node.cc b/src/node.cc
@@ -661,6 +661,7 @@ inline void PlatformInit() {
     struct sigaction sa;
     memset(&sa, 0, sizeof(sa));
     sa.sa_sigaction = TrapWebAssemblyOrContinue;
+    sa.sa_flags = SA_SIGINFO;
     CHECK_EQ(sigaction(SIGSEGV, &sa, nullptr), 0);
   }
 #endif  // defined(_WIN32)