29 lines
1.0 KiB
Diff
29 lines
1.0 KiB
Diff
From 5f7cda29add367c5381775a314ec9f90e311457a Mon Sep 17 00:00:00 2001
|
|
From: Rosen Penev <rosenp@gmail.com>
|
|
Date: Fri, 15 Nov 2019 12:43:50 -0800
|
|
Subject: [PATCH] cpu_relax: Fix MIPS check
|
|
|
|
BOOST_ARCH_MIPS as a macro is totally broken. It always gets defined to either 32
|
|
or 64 with a bunch of zeroes depending on the architecture.
|
|
|
|
Use GCC's internal define to check the architecture properly.
|
|
|
|
Signed-off-by: Rosen Penev <rosenp@gmail.com>
|
|
---
|
|
boost/fiber/detail/cpu_relax.hpp | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/boost/fiber/detail/cpu_relax.hpp b/boost/fiber/detail/cpu_relax.hpp
|
|
index 72564394..f40545c2 100644
|
|
--- a/boost/fiber/detail/cpu_relax.hpp
|
|
+++ b/boost/fiber/detail/cpu_relax.hpp
|
|
@@ -47,7 +47,7 @@ namespace detail {
|
|
# else
|
|
# define cpu_relax() asm volatile ("nop" ::: "memory");
|
|
# endif
|
|
-#elif BOOST_ARCH_MIPS
|
|
+#elif BOOST_ARCH_MIPS && (__mips_isa_rev > 1)
|
|
# define cpu_relax() asm volatile ("pause" ::: "memory");
|
|
#elif BOOST_ARCH_PPC
|
|
// http://code.metager.de/source/xref/gnu/glibc/sysdeps/powerpc/sys/platform/ppc.h
|