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[newlib-cygwin] cygwin: disable -Wframe-address warning only on GCC 6 or later
- From: Corinna Vinschen <corinna at sourceware dot org>
- To: cygwin-cvs at sourceware dot org
- Date: 9 Oct 2017 16:09:47 -0000
- Subject: [newlib-cygwin] cygwin: disable -Wframe-address warning only on GCC 6 or later
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7346a162f2956c53f36a0cabf969e7b8186d81b0
commit 7346a162f2956c53f36a0cabf969e7b8186d81b0
Author: Corinna Vinschen <corinna@vinschen.de>
Date: Mon Oct 9 18:08:10 2017 +0200
cygwin: disable -Wframe-address warning only on GCC 6 or later
This is required as long as we don't have a GCC 6.x cross compiler
on Linux.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diff:
---
winsup/cygwin/crt0.c | 4 ++++
winsup/cygwin/init.cc | 6 +++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/winsup/cygwin/crt0.c b/winsup/cygwin/crt0.c
index 271f5b9..fee4b2e 100644
--- a/winsup/cygwin/crt0.c
+++ b/winsup/cygwin/crt0.c
@@ -20,9 +20,13 @@ void
mainCRTStartup ()
{
#ifdef __i386__
+#if __GNUC_PREREQ(6,0)
#pragma GCC diagnostic ignored "-Wframe-address"
+#endif
(void)__builtin_return_address(1);
+#if __GNUC_PREREQ(6,0)
#pragma GCC diagnostic pop
+#endif
asm volatile ("andl $-16,%%esp" ::: "%esp");
#endif
diff --git a/winsup/cygwin/init.cc b/winsup/cygwin/init.cc
index 2d4299e..aeeeac7 100644
--- a/winsup/cygwin/init.cc
+++ b/winsup/cygwin/init.cc
@@ -22,10 +22,14 @@ static bool dll_finished_loading;
static void WINAPI
threadfunc_fe (VOID *arg)
{
-#ifndef __x86_64__
+#ifdef __i386__
+#if __GNUC_PREREQ(6,0)
#pragma GCC diagnostic ignored "-Wframe-address"
+#endif
(void)__builtin_return_address(1);
+#if __GNUC_PREREQ(6,0)
#pragma GCC diagnostic pop
+#endif
asm volatile ("andl $-16,%%esp" ::: "%esp");
#endif
_cygtls::call ((DWORD (*) (void *, void *)) TlsGetValue (_my_oldfunc), arg);