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authorSergei Trofimovich <slyfox@gentoo.org>2018-07-23 07:16:50 +0100
committerSergei Trofimovich <slyfox@gentoo.org>2018-07-23 07:17:09 +0100
commit2125b084cea6e23fc24d07e748dc0a3b5521c8f9 (patch)
treeb46c2efe8d83389b1e826b2240d3fa6bd1ebd6d3 /games-emulation/pcsx2/files
parentdev-ruby/rack-test: add 1.1.0 (diff)
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games-emulation/pcsx2: tweak for gcc-8
It's a backport of upstream commit 171e7f016dc9e132f9faf40a22f0312d45d356a5 "common: Work around GCC8 _xgetbv bug" Bug: https://gcc.gnu.org/PR85684 Package-Manager: Portage-2.3.43, Repoman-2.3.10
Diffstat (limited to 'games-emulation/pcsx2/files')
-rw-r--r--games-emulation/pcsx2/files/pcsx2-1.4.0-xgetbv.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/games-emulation/pcsx2/files/pcsx2-1.4.0-xgetbv.patch b/games-emulation/pcsx2/files/pcsx2-1.4.0-xgetbv.patch
new file mode 100644
index 000000000000..e90b0df9b6e2
--- /dev/null
+++ b/games-emulation/pcsx2/files/pcsx2-1.4.0-xgetbv.patch
@@ -0,0 +1,26 @@
+From 171e7f016dc9e132f9faf40a22f0312d45d356a5 Mon Sep 17 00:00:00 2001
+From: Jonathan Li <jonathan.li@hotmail.co.uk>
+Date: Fri, 11 May 2018 01:42:27 +0100
+Subject: [PATCH] common: Work around GCC8 _xgetbv bug
+
+clang and earlier GCC versions do not provide the _xgetbv intrinsic.
+GCC8 does, but unfortunately it's broken.
+(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85684).
+
+Re-use our _xgetbv implementation to avoid the bug, but rename it to
+avoid compilation errors as well.
+---
+ common/include/x86emitter/x86_intrin.h | 7 ++++---
+ common/src/x86emitter/cpudetect.cpp | 2 +-
+ 2 files changed, 5 insertions(+), 4 deletions(-)
+
+--- a/common/include/intrin_x86.h
++++ b/common/include/intrin_x86.h
+@@ -107 +107 @@ static __inline__ __attribute__((always_inline)) void __cpuidex(int CPUInfo[], c
+-static __inline__ __attribute__((always_inline)) unsigned long long _xgetbv(unsigned int index)
++static __inline__ __attribute__((always_inline)) unsigned long long _xgetbv_pcsx2(unsigned int index)
+--- a/common/src/x86emitter/cpudetect.cpp
++++ b/common/src/x86emitter/cpudetect.cpp
+@@ -273 +276 @@ void x86capabilities::Identify()
+- if((_xgetbv(0) & 6) == 6) // XFEATURE_ENABLED_MASK[2:1] = '11b' (XMM state and YMM state are enabled by OS).
++ if((_xgetbv_pcsx2(0) & 6) == 6) // XFEATURE_ENABLED_MASK[2:1] = '11b' (XMM state and YMM state are enabled by OS).