[PATCH v2] gdb: x86: fix x32 builds with inline asm

[Mike Frysinger <vapier@gentoo.org>]

We need to cast the pointer up to 64bits so that the push works on x32
targets.  For 64bit targets, this makes no difference.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

2012-01-08  Mike Frysinger  <vapier@gentoo.org>

	* common/linux-ptrace.c (linux_ptrace_test_ret_to_nx) [__x86_64__]:
	Cast return_address to 64bits.
---
v2
	- just cast the value in the x86_64 path to fix x32 builds

 gdb/common/linux-ptrace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gdb/common/linux-ptrace.c b/gdb/common/linux-ptrace.c
index 761ef59..886be80 100644
--- a/gdb/common/linux-ptrace.c
+++ b/gdb/common/linux-ptrace.c
@@ -114,7 +114,8 @@ linux_ptrace_test_ret_to_nx (void)
 			".globl linux_ptrace_test_ret_to_nx_instr;"
 			"linux_ptrace_test_ret_to_nx_instr:"
 			"ret"
-			: : "r" (return_address) : "%rsp", "memory");
+			: : "r" ((uint64_t) (uintptr_t) return_address)
+			: "%rsp", "memory");
 #else
 # error "!__i386__ && !__x86_64__"
 #endif
-- 
1.8.0.2