https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65083
--- Comment #3 from Joseph S. Myers ---
Author: jsm28
Date: Wed Nov 18 22:13:44 2015
New Revision: 230578
URL: https://gcc.gnu.org/viewcvs?rev=230578&root=gcc&view=rev
Log:
Add out-of-line versions of some functions (PR c/65083).
PR c/65083 notes that some functions in are normal
functions, not generic functions, and so need to have out-of-line
copies that can be called when macro expansion is suppressed (unlike
the generic functions where DR#419 makes it undefined if you suppress
a macro expansion).
This patch adds such out-of-line definitions in libatomic for those
six functions, at a new LIBATOMIC_1.2 symbol version, as trivial
wrappers to the macros, along with declarations of those
functions in . Tests are added that are based on the
corresponding tests for the macros, but with parentheses around the
function names to force the out-of-line functions to be used.
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc:
* ginclude/stdatomic.h (atomic_thread_fence, atomic_signal_fence)
(atomic_flag_test_and_set, atomic_flag_test_and_set_explicit)
(atomic_flag_clear, atomic_flag_clear_explicit): Declare as
functions before defining as macros.
gcc/testsuite:
* gcc.dg/atomic/stdatomic-fence-2.c,
gcc.dg/atomic/stdatomic-flag-2.c: New tests.
libatomic:
* fence.c, flag.c: New files.
* Makefile.am (libatomic_la_SOURCES): Add fence.c and flag.c.
* Makefile.in: Regenerate.
* configure.ac (libtool_VERSION): Change to 3:0:2.
* configure: Regenerate.
* libatomic.map (LIBATOMIC_1.2): New symbol version.
Added:
trunk/gcc/testsuite/gcc.dg/atomic/stdatomic-fence-2.c
trunk/gcc/testsuite/gcc.dg/atomic/stdatomic-flag-2.c
trunk/libatomic/fence.c
trunk/libatomic/flag.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ginclude/stdatomic.h
trunk/gcc/testsuite/ChangeLog
trunk/libatomic/ChangeLog
trunk/libatomic/Makefile.am
trunk/libatomic/Makefile.in
trunk/libatomic/configure
trunk/libatomic/configure.ac
trunk/libatomic/libatomic.map
