From 3c20a679b6e31af07542e56a446e2433fba53a7e Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Tue, 27 Jun 2017 10:49:51 -0300 Subject: nptl: Add C11 threads call_once functions This patch adds the call_* definitions from C11 threads (ISO/IEC 9899:2011), more specifically call_once and required types. Mostly of the definitions are composed based on POSIX conterparts,including once_flag (pthread_once_t). 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 (ONCE_FLAG_INIT): New macro. (once_flag): New type. (call_once): New function. * nptl/Makefile (libpthread-routines): Add call_once object. * nptl/Versions (libphread) [GLIBC_2.28]: Add call_once symbol. * nptl/call_once.c: New file. * sysdeps/nptl/threads.h (ONCE_FLAG_INIT): New define. (once_flag): New type. (call_once): New prototype. --- conform/data/threads.h-data | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'conform') diff --git a/conform/data/threads.h-data b/conform/data/threads.h-data index bb5ca75..70b2fe0 100644 --- a/conform/data/threads.h-data +++ b/conform/data/threads.h-data @@ -1,5 +1,7 @@ #if defined ISO11 +macro ONCE_FLAG_INIT + constant thrd_success constant thrd_busy constant thrd_error @@ -13,6 +15,7 @@ constant mtx_timed type thrd_t type thrd_start_t type mtx_t +type once_flag function int thrd_create (thrd_t*, thrd_start_t, void*) function int thrd_equal (thrd_t, thrd_t) @@ -30,6 +33,8 @@ function int mtx_trylock (mtx_t*) function int mtx_unlock (mtx_t*) function void mtx_destroy (mtx_t*) +function void call_once (once_flag*, void (*)(void)) + #include "time.h-data" #endif -- cgit v1.1