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gcc/libatomic
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Joseph Myers c29c36ad5d Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 
PR c/65083 notes that some functions in <stdatomic.h> 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 <stdatomic.h> macros, along with declarations of those
functions in <stdatomic.h>.  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.

From-SVN: r230578
2015-11-18 22:13:44 +00:00
..
config Update copyright years. 2015-01-05 13:33:28 +01:00
testsuite Testsuite: add dg-{begin|end}-multiline-output commands 2015-10-09 13:55:23 +00:00
.gitignore
acinclude.m4 acinclude.m4 (LIBAT_CHECK_IFUNC): Clarify message. 2012-11-05 00:27:03 +01:00
aclocal.m4 Makefile.am (libatomic_la_LDFLAGS): Add lt_host_flags. 2014-06-17 22:43:18 +02:00
auto-config.h.in tree-core.h (enum cv_qualifier): Add TYPE_QUAL_ATOMIC. 2013-11-07 21:15:25 +00:00
cas_n.c Update copyright years. 2015-01-05 13:33:28 +01:00
ChangeLog Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
configure Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
configure.ac Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
configure.tgt configure.tgt: Add *-*-dragonfly to supported targets. 2015-07-14 16:36:51 +01:00
exch_n.c Update copyright years. 2015-01-05 13:33:28 +01:00
fadd_n.c Update copyright years. 2015-01-05 13:33:28 +01:00
fand_n.c
fence.c Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
fenv.c Update copyright years. 2015-01-05 13:33:28 +01:00
fior_n.c
flag.c Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
fnand_n.c
fop_n.c Avoid misaligned atomic operations 2015-01-21 09:17:03 -08:00
fsub_n.c
fxor_n.c
gcas.c Update copyright years. 2015-01-05 13:33:28 +01:00
gexch.c Update copyright years. 2015-01-05 13:33:28 +01:00
glfree.c Update copyright years. 2015-01-05 13:33:28 +01:00
gload.c Update copyright years. 2015-01-05 13:33:28 +01:00
gstore.c Update copyright years. 2015-01-05 13:33:28 +01:00
host-config.h Update copyright years. 2015-01-05 13:33:28 +01:00
init.c
libatomic_i.h Update copyright years. 2015-01-05 13:33:28 +01:00
libatomic.map Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
load_n.c Update copyright years. 2015-01-05 13:33:28 +01:00
Makefile.am Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
Makefile.in Add out-of-line versions of some <stdatomic.h> functions (PR c/65083). 2015-11-18 22:13:44 +00:00
store_n.c Update copyright years. 2015-01-05 13:33:28 +01:00
tas_n.c Update copyright years. 2015-01-05 13:33:28 +01:00