diff options
Diffstat (limited to 'meta/recipes-core/glibc/glibc/0001-Add-atomic_exchange_relaxed.patch')
| -rw-r--r-- | meta/recipes-core/glibc/glibc/0001-Add-atomic_exchange_relaxed.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/meta/recipes-core/glibc/glibc/0001-Add-atomic_exchange_relaxed.patch b/meta/recipes-core/glibc/glibc/0001-Add-atomic_exchange_relaxed.patch new file mode 100644 index 0000000000..a33a135f78 --- /dev/null +++ b/meta/recipes-core/glibc/glibc/0001-Add-atomic_exchange_relaxed.patch @@ -0,0 +1,58 @@ +From ce74a620bf9e1a40b7ba06d35160e20633a4d8bb Mon Sep 17 00:00:00 2001 +From: Catalin Enache <catalin.enache@windriver.com> +Date: Fri, 7 Jul 2017 13:11:16 +0300 +Subject: [PATCH 1/6] Add atomic_exchange_relaxed. + +* include/atomic.h (atomic_exchange_relaxed): New + +Upstream-Status: Backport + +Author: Torvald Riegel <triegel@redhat.com> +Signed-off-by: Catalin Enache <catalin.enache@windriver.com> +--- + ChangeLog | 4 ++++ + include/atomic.h | 9 +++++++++ + 2 files changed, 13 insertions(+) + +diff --git a/ChangeLog b/ChangeLog +index 0fbda90..cb87279 100644 +--- a/ChangeLog ++++ b/ChangeLog +@@ -1,3 +1,7 @@ ++2016-08-05 Torvald Riegel <triegel@redhat.com> ++ ++ * include/atomic.h (atomic_exchange_relaxed): New. ++ + 2016-01-28 Carlos O'Donell <carlos@redhat.com> + Alexey Makhalov <amakhalov@vmware.com> + Florian Weimer <fweimer@redhat.com> +diff --git a/include/atomic.h b/include/atomic.h +index ad3db25..129ee24 100644 +--- a/include/atomic.h ++++ b/include/atomic.h +@@ -588,6 +588,9 @@ void __atomic_link_error (void); + __atomic_compare_exchange_n ((mem), (expected), (desired), 1, \ + __ATOMIC_RELEASE, __ATOMIC_RELAXED); }) + ++# define atomic_exchange_relaxed(mem, desired) \ ++ ({ __atomic_check_size((mem)); \ ++ __atomic_exchange_n ((mem), (desired), __ATOMIC_RELAXED); }) + # define atomic_exchange_acquire(mem, desired) \ + ({ __atomic_check_size((mem)); \ + __atomic_exchange_n ((mem), (desired), __ATOMIC_ACQUIRE); }) +@@ -684,6 +687,12 @@ void __atomic_link_error (void); + *(expected) == __atg103_expected; }) + # endif + ++/* XXX Fall back to acquire MO because archs do not define a weaker ++ atomic_exchange. */ ++# ifndef atomic_exchange_relaxed ++# define atomic_exchange_relaxed(mem, val) \ ++ atomic_exchange_acq ((mem), (val)) ++# endif + # ifndef atomic_exchange_acquire + # define atomic_exchange_acquire(mem, val) \ + atomic_exchange_acq ((mem), (val)) +-- +2.10.2 + |