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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-06-27 10:45:04 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2018-07-24 14:06:54 -0300
commit18d59c1b36e97d438ed964eb483c119517c18fee (patch)
tree331c95cbaed55bfef162c5696db9e3820a5f9c16 /nptl/Versions
parentce7528f637f7b9cddb3c22081d7e09b2a26c89bf (diff)
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nptl: Add C11 threads mtx_* functions
This patch adds the mtx_* definitions from C11 threads (ISO/IEC 9899:2011), more specifically mtx_init, mtx_destroy, mtx_lock, mtx_timedlock, mtx_trylock, mtx_unlock, and required types. Mostly of the definitions are composed based on POSIX conterparts, and mtx_t is also based on internal pthread fields, but with a distinct internal layout to avoid possible issues with code interchange (such as trying to pass POSIX structure on C11 functions and to avoid inclusion of pthread.h). The idea is to make possible to share POSIX internal implementations for mostly of the code (and making adjustment only when required). Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu, powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu, and x86_64-linux-gnu). Also ran a full check on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, arm-linux-gnueabhf, and powerpc64le-linux-gnu. [BZ #14092] * conform/data/threads.h-data (mtx_plain): New constant. (mtx_recursive): Likewise. (mtx_timed): Likewise. (mtx_t): New type. (mtx_init): New function. (mtx_lock): Likewise. (mtx_timedlock): Likewise. (mtx_trylock): Likewise. (mtx_unlock): Likewise. (mtx_destroy): Likewise. * nptl/Makefile (libpthread-routines): Add mtx_destroy, mtx_init, mtx_lock, mtx_timedlock, mtx_trylock, and mtx_unlock object. * nptl/Versions (libpthread) [GLIBC_2.28]): Add mtx_init, mtx_lock, mtx_timedlock, mtx_trylock, mtx_unlock, and mtx_destroy. * nptl/mtx_destroy.c: New file. * nptl/mtx_init.c: Likewise. * nptl/mtx_lock.c: Likewise. * nptl/mtx_timedlock.c: Likewise. * nptl/mtx_trylock.c: Likewise. * nptl/mtx_unlock.c: Likewise. * sysdeps/nptl/threads.h (mtx_plain): New enumeration. (mtx_recursive): Likewise. (mtx_timed): Likewise. (mtx_t): New type. (mtx_init): New prototype. (mtx_lock): Likewise. (mtx_timedlock): Likewise. (mtx_trylock): Likewise. (mtx_unlock): Likewise. (mtx_destroy): Likewise.
Diffstat (limited to 'nptl/Versions')
-rw-r--r--nptl/Versions1
1 files changed, 1 insertions, 0 deletions
diff --git a/nptl/Versions b/nptl/Versions
index 38d7e48..ca1be37 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -272,6 +272,7 @@ libpthread {
# C11 thread symbols.
GLIBC_2.28 {
thrd_create; thrd_detach; thrd_exit; thrd_join;
+ mtx_init; mtx_lock; mtx_timedlock; mtx_trylock; mtx_unlock; mtx_destroy;
}
GLIBC_PRIVATE {