17dae7d98c
Make it possible to build old kernels with gcc4 for armv7 and aarch64. The packages have been generated with (as usually): $ pmbootstrap aportgen gcc4-aarch64 gcc4-armv7 [ci:skip-build]: I have tested that this builds locally. Fixes #193.
28 lines
1 KiB
Diff
28 lines
1 KiB
Diff
libitm checks for AVX support in the assembler and adds -mavx to x86_avx.cc
|
|
which defines the needed typedefs. User CFLAGS can override -mavx however,
|
|
so also use the fallback typedef if __AVX__ isn't defined.
|
|
|
|
https://bugs.gentoo.org/417271
|
|
http://gcc.gnu.org/PR53113
|
|
|
|
|
|
--- a/libitm/config/x86/x86_avx.cc
|
|
+++ b/libitm/config/x86/x86_avx.cc
|
|
@@ -29,7 +29,7 @@
|
|
|
|
extern "C" {
|
|
|
|
-#ifndef HAVE_AS_AVX
|
|
+#if !defined (HAVE_AS_AVX) || !defined(__AVX__)
|
|
// If we don't have an AVX capable assembler, we didn't set -mavx on the
|
|
// command-line either, which means that libitm.h defined neither this type
|
|
// nor the functions in this file. Define the type and unconditionally
|
|
@@ -40,7 +40,7 @@ typedef float _ITM_TYPE_M256 __attribute__((vector_size(32), may_alias));
|
|
// Re-define the memcpy implementations so that we can frob the
|
|
// interface to deal with possibly missing AVX instruction set support.
|
|
|
|
-#ifdef HAVE_AS_AVX
|
|
+#if defined(HAVE_AS_AVX) && defined(__AVX__)
|
|
#define RETURN(X) return X
|
|
#define STORE(X,Y) X = Y
|
|
#define OUTPUT(T) _ITM_TYPE_##T
|