diff mbox series

[1/4] Libatomic: Define per-file identifier macros

Message ID 20240516133647.2453141-2-victor.donascimento@arm.com
State New
Headers show
Series Libatomic: Cleanup ifunc selector and aliasing | expand

Commit Message

Victor Do Nascimento May 16, 2024, 1:36 p.m. UTC 
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.
---
 libatomic/cas_n.c   | 2 ++
 libatomic/exch_n.c  | 2 ++
 libatomic/fadd_n.c  | 2 ++
 libatomic/fand_n.c  | 2 ++
 libatomic/fence.c   | 2 ++
 libatomic/fenv.c    | 2 ++
 libatomic/fior_n.c  | 2 ++
 libatomic/flag.c    | 2 ++
 libatomic/fnand_n.c | 2 ++
 libatomic/fop_n.c   | 2 ++
 libatomic/fsub_n.c  | 2 ++
 libatomic/fxor_n.c  | 2 ++
 libatomic/gcas.c    | 2 ++
 libatomic/gexch.c   | 2 ++
 libatomic/glfree.c  | 2 ++
 libatomic/gload.c   | 2 ++
 libatomic/gstore.c  | 2 ++
 libatomic/load_n.c  | 2 ++
 libatomic/store_n.c | 2 ++
 libatomic/tas_n.c   | 2 ++
 20 files changed, 40 insertions(+)
diff mbox series

Patch

diff --git a/libatomic/cas_n.c b/libatomic/cas_n.c
index a080b990371..2a6357e48db 100644
--- a/libatomic/cas_n.c
+++ b/libatomic/cas_n.c
@@ -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
diff --git a/libatomic/exch_n.c b/libatomic/exch_n.c
index e5ff80769b9..184d3de1009 100644
--- a/libatomic/exch_n.c
+++ b/libatomic/exch_n.c
@@ -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
diff --git a/libatomic/fadd_n.c b/libatomic/fadd_n.c
index bc15b8bc0e6..32b75cec654 100644
--- a/libatomic/fadd_n.c
+++ b/libatomic/fadd_n.c
@@ -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
diff --git a/libatomic/fand_n.c b/libatomic/fand_n.c
index ffe9ed8700f..9eab55bcd72 100644
--- a/libatomic/fand_n.c
+++ b/libatomic/fand_n.c
@@ -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
diff --git a/libatomic/fence.c b/libatomic/fence.c
index a9b1e280c5a..4022194a57a 100644
--- a/libatomic/fence.c
+++ b/libatomic/fence.c
@@ -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
diff --git a/libatomic/fenv.c b/libatomic/fenv.c
index 41f187c1f85..dccad356a31 100644
--- a/libatomic/fenv.c
+++ b/libatomic/fenv.c
@@ -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
diff --git a/libatomic/fior_n.c b/libatomic/fior_n.c
index 55d0d66b469..2b58d4805d6 100644
--- a/libatomic/fior_n.c
+++ b/libatomic/fior_n.c
@@ -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
diff --git a/libatomic/flag.c b/libatomic/flag.c
index e4a5a27819a..8afd80c9130 100644
--- a/libatomic/flag.c
+++ b/libatomic/flag.c
@@ -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
diff --git a/libatomic/fnand_n.c b/libatomic/fnand_n.c
index a3c98c70494..84a02709cbb 100644
--- a/libatomic/fnand_n.c
+++ b/libatomic/fnand_n.c
@@ -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
diff --git a/libatomic/fop_n.c b/libatomic/fop_n.c
index f5eb07e859f..fefff3a57a4 100644
--- a/libatomic/fop_n.c
+++ b/libatomic/fop_n.c
@@ -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
diff --git a/libatomic/fsub_n.c b/libatomic/fsub_n.c
index e9f8d7d25e1..49b375a543f 100644
--- a/libatomic/fsub_n.c
+++ b/libatomic/fsub_n.c
@@ -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
diff --git a/libatomic/fxor_n.c b/libatomic/fxor_n.c
index 0f2d9624127..d9a91bc3b23 100644
--- a/libatomic/fxor_n.c
+++ b/libatomic/fxor_n.c
@@ -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
diff --git a/libatomic/gcas.c b/libatomic/gcas.c
index 21d11305f1e..af4a5f5c5ee 100644
--- a/libatomic/gcas.c
+++ b/libatomic/gcas.c
@@ -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
diff --git a/libatomic/gexch.c b/libatomic/gexch.c
index 6233759a2e8..afb054c0ef2 100644
--- a/libatomic/gexch.c
+++ b/libatomic/gexch.c
@@ -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
diff --git a/libatomic/glfree.c b/libatomic/glfree.c
index 58a45126194..1051ceb81cd 100644
--- a/libatomic/glfree.c
+++ b/libatomic/glfree.c
@@ -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
diff --git a/libatomic/gload.c b/libatomic/gload.c
index 4b3198cc5ae..9b499672161 100644
--- a/libatomic/gload.c
+++ b/libatomic/gload.c
@@ -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
diff --git a/libatomic/gstore.c b/libatomic/gstore.c
index 505a7b9b2df..b2636059bd8 100644
--- a/libatomic/gstore.c
+++ b/libatomic/gstore.c
@@ -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
diff --git a/libatomic/load_n.c b/libatomic/load_n.c
index 7513f191833..657c8e23ed2 100644
--- a/libatomic/load_n.c
+++ b/libatomic/load_n.c
@@ -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
diff --git a/libatomic/store_n.c b/libatomic/store_n.c
index d8ab5e69a50..079e22d75ba 100644
--- a/libatomic/store_n.c
+++ b/libatomic/store_n.c
@@ -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
diff --git a/libatomic/tas_n.c b/libatomic/tas_n.c
index 4a01cd2a5c8..9321b3a4e02 100644
--- a/libatomic/tas_n.c
+++ b/libatomic/tas_n.c
@@ -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