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authorDavid Woodhouse <dwmw@amazon.co.uk>2018-02-19 13:50:57 +0300
committerIngo Molnar <mingo@kernel.org>2018-02-20 13:17:58 +0300
commit87358710c1fb4f1bf96bbe2349975ff9953fc9b2 (patch)
treee299a6ab64aadb44ffd431ae8342e0ae0b266cba /include/linux/compiler-clang.h
parentdd84441a797150dcc49298ec95c459a8891d8bb1 (diff)
downloadlinux-87358710c1fb4f1bf96bbe2349975ff9953fc9b2.tar.xz
x86/retpoline: Support retpoline builds with Clang
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: arjan.van.de.ven@intel.com Cc: bp@alien8.de Cc: dave.hansen@intel.com Cc: jmattson@google.com Cc: karahmed@amazon.de Cc: kvm@vger.kernel.org Cc: pbonzini@redhat.com Cc: rkrcmar@redhat.com Link: http://lkml.kernel.org/r/1519037457-7643-5-git-send-email-dwmw@amazon.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/compiler-clang.h')
-rw-r--r--include/linux/compiler-clang.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index d02a4df3f473..d3f264a5b04d 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -27,3 +27,8 @@
#if __has_feature(address_sanitizer)
#define __SANITIZE_ADDRESS__
#endif
+
+/* Clang doesn't have a way to turn it off per-function, yet. */
+#ifdef __noretpoline
+#undef __noretpoline
+#endif