[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Sat, 16 Feb 2013 00:24:30 +0100
From: Jens Gustedt <Jens.Gustedt@...ia.fr>
To: musl@...ts.openwall.com
Subject: [PATCH 4/5] add three macros for empty dummy functions that do
nothing
these are functions that receive arguments according to three different
interfaces, void, void* or int.
31 0 src/internal/libc.h
diff --git a/src/internal/libc.h b/src/internal/libc.h
index a097a66..1f15f4d 100644
--- a/src/internal/libc.h
+++ b/src/internal/libc.h
@@ -73,6 +73,37 @@ extern char **__environ;
#define weak_alias(old, new) \
extern __typeof(old) new __attribute__((weak, alias(#old)))
+/* provide a weak function symbol for a function that receives no
+ arguments */
+#define WEAK_PROVIDE_VOID \
+_Weak \
+void __weak_dummy_void(void) { \
+ /* empty */ \
+} \
+/* syntax sugar */ \
+_Weak void __weak_dummy_void(void)
+
+/* provide a weak function symbol for a function that receives a void
+ pointer argument */
+#define WEAK_PROVIDE_VOIDP \
+_Weak \
+void __weak_dummy_voidp(void* _ign) { \
+ /* empty */ \
+} \
+/* syntax sugar */ \
+_Weak void __weak_dummy_voidp(void*)
+
+/* provide a weak function symbol for a function that receives an int
+ argument */
+#define WEAK_PROVIDE_INT \
+_Weak \
+void __weak_dummy_int(int _ign) { \
+ /* empty */ \
+} \
+/* syntax sugar */ \
+_Weak void __weak_dummy_int(int _ign)
+
+
#undef LFS64_2
#define LFS64_2(x, y) weak_alias(x, y)
--
1.7.9.5
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
