path: root/user/erlang/safe-signal-handling.patch

--- otp-OTP-21.2.6.orig/erts/emulator/hipe/hipe_x86_signal.c
+++ otp-OTP-21.2.6/erts/emulator/hipe/hipe_x86_signal.c
@@ -159,16 +159,10 @@
 
 #if !(defined(__GLIBC__) || defined(__DARWIN__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__sun__))
 /*
- * Unknown libc -- assume musl.  Note: musl deliberately does not provide a musl-specific
- * feature test macro, so we cannot check for it.
- *
- * sigaction is a weak alias for __sigaction, which is a wrapper for __libc_sigaction.
- * There are libc-internal calls to __libc_sigaction which install handlers, so we must
- * override __libc_sigaction rather than __sigaction.
+ * Unknown libc -- assume musl.  Also assume signal delivery on musl is safe.
  */
-#define NEXT_SIGACTION "__libc_sigaction"
-#define LIBC_SIGACTION __libc_sigaction
-#define OVERRIDE_SIGACTION
+#undef NEXT_SIGACTION
+#undef OVERRIDE_SIGACTION
 #ifndef _NSIG
 #define _NSIG NSIG
 #endif