summaryrefslogtreecommitdiffstats
path: root/src/vlib/init.h
diff options
context:
space:
mode:
authorDamjan Marion <damarion@cisco.com>2018-08-10 22:39:11 +0200
committerDamjan Marion <dmarion@me.com>2018-08-13 14:33:54 +0000
commit6e36351faf5b69a0bfb8235b3b06f8b2c24e5547 (patch)
tree512c92bda1a48604fbfbc7bbbb1e4b613cdba614 /src/vlib/init.h
parent3bf6c2bfe59be62169a1245340722481b0b53870 (diff)
Multiarch handling in different constructor macros
This significantly reduces need for ... in multiarch code. Simply constructor macros will jost create static unused entry if CLIB_MARCH_VARIANT is defined and that will be optimized out by compiler. Change-Id: I17d1c4ac0c903adcfadaa4a07de1b854c7ab14ac Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/init.h')
-rw-r--r--src/vlib/init.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/vlib/init.h b/src/vlib/init.h
index f163ee2fb7a..a9367697a85 100644
--- a/src/vlib/init.h
+++ b/src/vlib/init.h
@@ -115,6 +115,7 @@ typedef struct vlib_config_function_runtime_t
/* Declaration is global (e.g. not static) so that init functions can
be called from other modules to resolve init function depend. */
+#ifndef CLIB_MARCH_VARIANT
#define VLIB_DECLARE_INIT_FUNCTION(x, tag) \
vlib_init_function_t * _VLIB_INIT_FUNCTION_SYMBOL (x, tag) = x; \
static void __vlib_add_##tag##_function_##x (void) \
@@ -152,6 +153,12 @@ static void __vlib_rm_##tag##_function_##x (void) \
next = next->next_init_function; \
} \
}
+#else
+/* create unused pointer to silence compiler warnings and get whole
+ function optimized out */
+#define VLIB_DECLARE_INIT_FUNCTION(x, tag) \
+static __clib_unused void * __clib_unused_##tag##_##x = x;
+#endif
#define VLIB_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,init)
#define VLIB_WORKER_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,worker_init)
@@ -161,6 +168,7 @@ static void __vlib_rm_##tag##_function_##x (void) \
#define VLIB_MAIN_LOOP_EXIT_FUNCTION(x) \
VLIB_DECLARE_INIT_FUNCTION(x,main_loop_exit)
+#ifndef CLIB_MARCH_VARIANT
#define VLIB_CONFIG_FUNCTION(x,n,...) \
__VA_ARGS__ vlib_config_function_runtime_t \
VLIB_CONFIG_FUNCTION_SYMBOL(x); \
@@ -191,7 +199,20 @@ static void __vlib_rm_config_function_##x (void) \
.function = x, \
.is_early = 0, \
}
+#else
+/* create unused pointer to silence compiler warnings and get whole
+ function optimized out */
+#define VLIB_CONFIG_FUNCTION(x,n,...) \
+ static __clib_unused vlib_config_function_runtime_t \
+ VLIB_CONFIG_FUNCTION_SYMBOL (__clib_unused_##x) \
+ = { \
+ .name = n, \
+ .function = x, \
+ .is_early = 0, \
+ }
+#endif
+#ifndef CLIB_MARCH_VARIANT
#define VLIB_EARLY_CONFIG_FUNCTION(x,n,...) \
__VA_ARGS__ vlib_config_function_runtime_t \
VLIB_CONFIG_FUNCTION_SYMBOL(x); \
@@ -222,6 +243,18 @@ static void __vlib_rm_config_function_##x (void) \
.function = x, \
.is_early = 1, \
}
+#else
+/* create unused pointer to silence compiler warnings and get whole
+ function optimized out */
+#define VLIB_EARLY_CONFIG_FUNCTION(x,n,...) \
+ static __clib_unused vlib_config_function_runtime_t \
+ VLIB_CONFIG_FUNCTION_SYMBOL (__clib_unused_##x) \
+ = { \
+ .name = n, \
+ .function = x, \
+ .is_early = 1, \
+ }
+#endif
/* Call given init function: used for init function dependencies. */
#define vlib_call_init_function(vm, x) \