From ce55d03eef8cefff5ed731c0e1176425d59c600f Mon Sep 17 00:00:00 2001
From: Michael Matz <matz@suse.de>
Date: Mon, 26 Sep 2016 21:52:57 +0200
Subject: [PATCH] Handle __builtin_extract_return_addr

Our architectures don't need anything special for this
builtin, just pass through the argument.
---
 libtcc.c        | 3 +++
 tests/tcctest.c | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/libtcc.c b/libtcc.c
index 1346fa6..76ee11c 100644
--- a/libtcc.c
+++ b/libtcc.c
@@ -904,6 +904,9 @@ LIBTCCAPI TCCState *tcc_new(void)
 # endif
 #endif /* ndef TCC_TARGET_PE */
 
+    /* Some GCC builtins that are simple to express as macros.  */
+    tcc_define_symbol(s, "__builtin_extract_return_addr(x)", "x");
+
     return s;
 }
 
diff --git a/tests/tcctest.c b/tests/tcctest.c
index ff88688..0485a74 100644
--- a/tests/tcctest.c
+++ b/tests/tcctest.c
@@ -3027,6 +3027,8 @@ void builtin_test(void)
     printf("bce: %d\n", i);
     i = sizeof (__builtin_choose_expr (0, ll, s));
     printf("bce: %d\n", i);
+
+    printf("bera: %p\n", __builtin_extract_return_addr((void*)43));
 }
 
 #ifndef _WIN32