From b068e29df753192bdcec5b1e41401bdc21812136 Mon Sep 17 00:00:00 2001
From: Michael Matz <address@hidden>
Date: Mon, 16 Apr 2012 00:39:24 +0200
Subject: [PATCH 7/9] x86_64: Implement GET_CALLER_FP

TCC always uses %rbp frames, so we can use that one.
---
 lib/bcheck.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/lib/bcheck.c b/lib/bcheck.c
index 9996649..48d7606 100644
--- a/lib/bcheck.c
+++ b/lib/bcheck.c
@@ -216,6 +216,14 @@ BOUND_PTR_INDIR(16)
     __asm__ __volatile__ ("movl %%ebp,%0" :"=g" (fp1));\
     fp = fp1[0];\
 }
+#elif defined(__x86_64__)
+/* TCC always creates %rbp frames also on x86_64, so use them.  */
+#define GET_CALLER_FP(fp)\
+{\
+    unsigned long *fp1;\
+    __asm__ __volatile__ ("movq %%rbp,%0" :"=g" (fp1));\
+    fp = fp1[0];\
+}
 #else
 #error put code to extract the calling frame pointer
 #endif
-- 
1.7.3.4