diff options
Diffstat (limited to 'meta/recipes-core/glibc/glibc/use_64bit_atomics.patch')
| -rw-r--r-- | meta/recipes-core/glibc/glibc/use_64bit_atomics.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/meta/recipes-core/glibc/glibc/use_64bit_atomics.patch b/meta/recipes-core/glibc/glibc/use_64bit_atomics.patch new file mode 100644 index 0000000000..eb7f2b29be --- /dev/null +++ b/meta/recipes-core/glibc/glibc/use_64bit_atomics.patch @@ -0,0 +1,24 @@ +This patch alows using 64 bit atomic instructions on a +32 bit platform. This is safe, providing x86 is Pentium or +later (would not work on i386, i486). Using 64 bit atomic +instructions bypasses code containing a bug as documented in +https://bugzilla.yoctoproject.org/show_bug.cgi?id=8140 + +Upstream-Status: TBD + +Signed-off-by: Juro Bystricky <juro.bystricky@intel.com> + + +Index: libc/sysdeps/i386/i486/bits/atomic.h +=================================================================== +--- libc.orig/sysdeps/i386/i486/bits/atomic.h ++++ libc/sysdeps/i386/i486/bits/atomic.h +@@ -54,7 +54,7 @@ typedef uintmax_t uatomic_max_t; + # endif + #endif + +-#define __HAVE_64B_ATOMICS 0 ++#define __HAVE_64B_ATOMICS 1 + #define USE_ATOMIC_COMPILER_BUILTINS 0 + + |