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Libatomic: Define per-file identifier macros

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In order to facilitate the fine-tuning of how `libatomic_i.h' and
`host-config.h' headers are used by different atomic functions, we
define distinct identifier macros for each file which, in implementing
atomic operations, imports these headers.

The idea is that different parts of these headers could then be
conditionally defined depending on the macros set by the file that
`#include'd them.

Given how it is possible that some file names are generic enough that
using them as-is for macro names (e.g. flag.c -> FLAG) may potentially
lead to name clashes with other macros, all file names first have LAT_
prepended to them such that, for example, flag.c is assigned the
LAT_FLAG macro.

Libatomic/ChangeLog:

	* cas_n.c (LAT_CAS_N): New.
	* exch_n.c (LAT_EXCH_N): Likewise.
	* fadd_n.c (LAT_FADD_N): Likewise.
	* fand_n.c (LAT_FAND_N): Likewise.
	* fence.c (LAT_FENCE): Likewise.
	* fenv.c (LAT_FENV): Likewise.
	* fior_n.c (LAT_FIOR_N): Likewise.
	* flag.c (LAT_FLAG): Likewise.
	* fnand_n.c (LAT_FNAND_N): Likewise.
	* fop_n.c (LAT_FOP_N): Likewise
	* fsub_n.c (LAT_FSUB_N): Likewise.
	* fxor_n.c (LAT_FXOR_N): Likewise.
	* gcas.c (LAT_GCAS): Likewise.
	* gexch.c (LAT_GEXCH): Likewise.
	* glfree.c (LAT_GLFREE): Likewise.
	* gload.c (LAT_GLOAD): Likewise.
	* gstore.c (LAT_GSTORE): Likewise.
	* load_n.c (LAT_LOAD_N): Likewise.
	* store_n.c (LAT_STORE_N): Likewise.
	* tas_n.c (LAT_TAS_N): Likewise.
This commit is contained in:
Victor Do Nascimento 2024-01-31 20:24:45 +00:00
parent f6b9a064a2
commit 6edf6fe75b
20 changed files with 40 additions and 0 deletions
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2
libatomic/cas_n.c
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@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_CAS_N
#include "libatomic_i.h"
@ -122,3 +123,4 @@ SIZE(libat_compare_exchange) (UTYPE *mptr, UTYPE *eptr, UTYPE newval,
#endif
EXPORT_ALIAS (SIZE(compare_exchange));
#undef LAT_CAS_N

2
libatomic/exch_n.c
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@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_EXCH_N
#include "libatomic_i.h"
@ -126,3 +127,4 @@ SIZE(libat_exchange) (UTYPE *mptr, UTYPE newval, int smodel UNUSED)
#endif
EXPORT_ALIAS (SIZE(exchange));
#undef LAT_EXCH_N

2
libatomic/fadd_n.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_FADD_N
#include <libatomic_i.h>
#define NAME add
@ -43,3 +44,4 @@
#endif
#include "fop_n.c"
#undef LAT_FADD_N

2
libatomic/fand_n.c
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@ -1,3 +1,5 @@
#define LAT_FAND_N
#define NAME and
#define OP(X,Y) ((X) & (Y))
#include "fop_n.c"
#undef LAT_FAND_N

2
libatomic/fence.c
View File

@ -21,6 +21,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_FENCE
#include "libatomic_i.h"
#include <stdatomic.h>
@ -43,3 +44,4 @@ void
{
atomic_signal_fence (order);
}
#undef LAT_FENCE

2
libatomic/fenv.c
View File

@ -21,6 +21,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_FENV
#include "libatomic_i.h"
#ifdef HAVE_FENV_H
@ -70,3 +71,4 @@ __atomic_feraiseexcept (int excepts __attribute__ ((unused)))
}
#endif
}
#undef LAT_FENV

2
libatomic/fior_n.c
View File

@ -1,3 +1,5 @@
#define LAT_FIOR_N
#define NAME or
#define OP(X,Y) ((X) | (Y))
#include "fop_n.c"
#undef LAT_FIOR_N

2
libatomic/flag.c
View File

@ -21,6 +21,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_FLAG
#include "libatomic_i.h"
#include <stdatomic.h>
@ -62,3 +63,4 @@ void
{
return atomic_flag_clear_explicit (object, order);
}
#undef LAT_FLAG

2
libatomic/fnand_n.c
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@ -1,3 +1,5 @@
#define LAT_FNAND_N
#define NAME nand
#define OP(X,Y) ~((X) & (Y))
#include "fop_n.c"
#undef LAT_FNAND_N

2
libatomic/fop_n.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_FOP_N
#include <libatomic_i.h>
@ -198,3 +199,4 @@ SIZE(C3(libat_,NAME,_fetch)) (UTYPE *mptr, UTYPE opval, int smodel UNUSED)
EXPORT_ALIAS (SIZE(C2(fetch_,NAME)));
EXPORT_ALIAS (SIZE(C2(NAME,_fetch)));
#undef LAT_FOP_N

2
libatomic/fsub_n.c
View File

@ -1,3 +1,5 @@
#define LAT_FSUB_N
#define NAME sub
#define OP(X,Y) ((X) - (Y))
#include "fop_n.c"
#undef LAT_FSUB_N

2
libatomic/fxor_n.c
View File

@ -1,3 +1,5 @@
#define LAT_FXOR_N
#define NAME xor
#define OP(X,Y) ((X) ^ (Y))
#include "fop_n.c"
#undef LAT_FXOR_N

2
libatomic/gcas.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_GCAS
#include "libatomic_i.h"
@ -118,3 +119,4 @@ libat_compare_exchange (size_t n, void *mptr, void *eptr, void *dptr,
}
EXPORT_ALIAS (compare_exchange);
#undef LAT_GCAS

2
libatomic/gexch.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_GEXCH
#include "libatomic_i.h"
@ -142,3 +143,4 @@ libat_exchange (size_t n, void *mptr, void *vptr, void *rptr, int smodel)
}
EXPORT_ALIAS (exchange);
#undef LAT_GEXCH

2
libatomic/glfree.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_GLFREE
#include "libatomic_i.h"
/* Accesses with a power-of-two size are not lock-free if we don't have an
@ -80,3 +81,4 @@ libat_is_lock_free (size_t n, void *ptr)
}
EXPORT_ALIAS (is_lock_free);
#undef LAT_GLFREE

2
libatomic/gload.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_GLOAD
#include "libatomic_i.h"
@ -98,3 +99,4 @@ libat_load (size_t n, void *mptr, void *rptr, int smodel)
}
EXPORT_ALIAS (load);
#undef LAT_GLOAD

2
libatomic/gstore.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_GSTORE
#include "libatomic_i.h"
@ -106,3 +107,4 @@ libat_store (size_t n, void *mptr, void *vptr, int smodel)
}
EXPORT_ALIAS (store);
#undef LAT_GSTORE

2
libatomic/load_n.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_LOAD_N
#include "libatomic_i.h"
@ -113,3 +114,4 @@ SIZE(libat_load) (UTYPE *mptr, int smodel)
#endif
EXPORT_ALIAS (SIZE(load));
#undef LAT_LOAD_N

2
libatomic/store_n.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_STORE_N
#include "libatomic_i.h"
@ -110,3 +111,4 @@ SIZE(libat_store) (UTYPE *mptr, UTYPE newval, int smodel)
#endif
EXPORT_ALIAS (SIZE(store));
#undef LAT_STORE_N

2
libatomic/tas_n.c
View File

@ -22,6 +22,7 @@
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#define LAT_TAS_N
#include "libatomic_i.h"
@ -113,3 +114,4 @@ SIZE(libat_test_and_set) (UTYPE *mptr, int smodel UNUSED)
#endif
EXPORT_ALIAS (SIZE(test_and_set));
#undef LAT_TAS_N