From 3988f935b8715ddeffc994472c146e62448c8749 Mon Sep 17 00:00:00 2001
From: Peter Crozier <peter@crozier.com>
Date: Wed, 13 May 2020 13:09:08 +0100
Subject: [PATCH] Extend YS_DEBUGTRAP to MacOS.

---
 kernel/log.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/log.h b/kernel/log.h
index dee5d44d7..4b60ffb0d 100644
--- a/kernel/log.h
+++ b/kernel/log.h
@@ -86,7 +86,7 @@ YOSYS_NAMESPACE_BEGIN
 # endif
 # if __has_builtin(__builtin_debugtrap)
 #  define YS_DEBUGTRAP __builtin_debugtrap()
-# elif defined(__unix__)
+# elif defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
 #  define YS_DEBUGTRAP raise(SIGTRAP)
 # else
 #  define YS_DEBUGTRAP do {} while(0)
@@ -103,6 +103,9 @@ YOSYS_NAMESPACE_BEGIN
 # define YS_DEBUGTRAP_IF_DEBUGGING do { \
 		sighandler_t old = signal(SIGTRAP, SIG_IGN); raise(SIGTRAP); signal(SIGTRAP, old); \
 	} while(0)
+#elif defined(__APPLE__) && defined(__MACH__)
+// MacOS
+#define YS_DEBUGTRAP_IF_DEBUGGING { sig_t old = signal(SIGTRAP, SIG_IGN); raise(SIGTRAP); signal(SIGTRAP, old); }
 #else
 # define YS_DEBUGTRAP_IF_DEBUGGING do {} while(0)
 #endif