X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlib%2Finit.h;h=fc638013efc65259e81d1b76bc391651617ed214;hb=a633a4318bea2f9edcb80d9685b0f811cac679ea;hp=4fa5b3045907134f276359f3e503586b85b05bd2;hpb=7cd468a3d7dee7d6c92f69a0bb7061ae208ec727;p=vpp.git diff --git a/src/vlib/init.h b/src/vlib/init.h index 4fa5b304590..fc638013efc 100644 --- a/src/vlib/init.h +++ b/src/vlib/init.h @@ -54,6 +54,10 @@ typedef struct _vlib_init_function_list_elt { struct _vlib_init_function_list_elt *next_init_function; vlib_init_function_t *f; + char *name; + char **runs_before; + char **runs_after; + char **init_order; } _vlib_init_function_list_elt_t; /* Configuration functions: called with configuration input just before @@ -79,6 +83,27 @@ typedef struct vlib_config_function_runtime_t char name[32]; } vlib_config_function_runtime_t; +#define VLIB_REMOVE_FROM_LINKED_LIST(first,p,next) \ +{ \ + ASSERT (first); \ + if (first == p) \ + first = (p)->next; \ + else \ + { \ + __typeof__ (p) current = first; \ + while (current->next) \ + { \ + if (current->next == p) \ + { \ + current->next = current->next->next; \ + break; \ + } \ + current = current->next; \ + } \ + ASSERT (current); \ + } \ +} + #define _VLIB_INIT_FUNCTION_SYMBOL(x, type) \ _vlib_##type##_function_##x @@ -94,27 +119,66 @@ 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) \ + __attribute__((__constructor__)) ; \ +static _vlib_init_function_list_elt_t _vlib_init_function_##tag_##x; \ +static void __vlib_add_##tag##_function_##x (void) \ +{ \ + vlib_main_t * vm = vlib_get_main(); \ + _vlib_init_function_##tag_##x.next_init_function \ + = vm->tag##_function_registrations; \ + vm->tag##_function_registrations = &_vlib_init_function_##tag_##x; \ + _vlib_init_function_##tag_##x.f = &x; \ + _vlib_init_function_##tag_##x.name = #x; \ +} \ +static void __vlib_rm_##tag##_function_##x (void) \ + __attribute__((__destructor__)) ; \ +static void __vlib_rm_##tag##_function_##x (void) \ +{ \ + vlib_main_t * vm = vlib_get_main(); \ + _vlib_init_function_list_elt_t *this, *prev; \ + this = vm->tag##_function_registrations; \ + if (this == 0) \ + return; \ + if (this->f == &x) \ + { \ + vm->tag##_function_registrations = this->next_init_function; \ + return; \ + } \ + prev = this; \ + this = this->next_init_function; \ + while (this) \ + { \ + if (this->f == &x) \ + { \ + prev->next_init_function = \ + this->next_init_function; \ + return; \ + } \ + prev = this; \ + this = this->next_init_function; \ + } \ +} \ +static _vlib_init_function_list_elt_t _vlib_init_function_##tag_##x +#else +/* create unused pointer to silence compiler warnings and get whole + function optimized out */ #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) \ - __attribute__((__constructor__)) ; \ -static void __vlib_add_##tag##_function_##x (void) \ -{ \ - vlib_main_t * vm = vlib_get_main(); \ - static _vlib_init_function_list_elt_t _vlib_init_function; \ - _vlib_init_function.next_init_function \ - = vm->tag##_function_registrations; \ - vm->tag##_function_registrations = &_vlib_init_function; \ - _vlib_init_function.f = &x; \ -} +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) #define VLIB_MAIN_LOOP_ENTER_FUNCTION(x) \ VLIB_DECLARE_INIT_FUNCTION(x,main_loop_enter) #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); \ @@ -127,6 +191,16 @@ static void __vlib_add_config_function_##x (void) \ = vm->config_function_registrations; \ vm->config_function_registrations \ = &VLIB_CONFIG_FUNCTION_SYMBOL(x); \ +} \ +static void __vlib_rm_config_function_##x (void) \ + __attribute__((__destructor__)) ; \ +static void __vlib_rm_config_function_##x (void) \ +{ \ + vlib_main_t * vm = vlib_get_main(); \ + vlib_config_function_runtime_t *p = \ + & VLIB_CONFIG_FUNCTION_SYMBOL (x); \ + VLIB_REMOVE_FROM_LINKED_LIST \ + (vm->config_function_registrations, p, next_registration);\ } \ vlib_config_function_runtime_t \ VLIB_CONFIG_FUNCTION_SYMBOL (x) \ @@ -135,7 +209,20 @@ static void __vlib_add_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); \ @@ -148,6 +235,16 @@ static void __vlib_add_config_function_##x (void) \ = vm->config_function_registrations; \ vm->config_function_registrations \ = &VLIB_CONFIG_FUNCTION_SYMBOL(x); \ +} \ +static void __vlib_rm_config_function_##x (void) \ + __attribute__((__destructor__)) ; \ +static void __vlib_rm_config_function_##x (void) \ +{ \ + vlib_main_t * vm = vlib_get_main(); \ + vlib_config_function_runtime_t *p = \ + & VLIB_CONFIG_FUNCTION_SYMBOL (x); \ + VLIB_REMOVE_FROM_LINKED_LIST \ + (vm->config_function_registrations, p, next_registration);\ } \ vlib_config_function_runtime_t \ VLIB_CONFIG_FUNCTION_SYMBOL (x) \ @@ -156,6 +253,18 @@ static void __vlib_add_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) \ @@ -217,9 +326,13 @@ clib_error_t *vlib_call_all_main_loop_enter_functions (struct vlib_main_t *vm); clib_error_t *vlib_call_all_main_loop_exit_functions (struct vlib_main_t *vm); clib_error_t *vlib_call_init_exit_functions (struct vlib_main_t *vm, - _vlib_init_function_list_elt_t * - head, int call_once); - + _vlib_init_function_list_elt_t ** + headp, int call_once); +clib_error_t *vlib_call_init_exit_functions_no_sort (struct vlib_main_t *vm, + _vlib_init_function_list_elt_t + ** headp, int call_once); +clib_error_t *vlib_sort_init_exit_functions (_vlib_init_function_list_elt_t + **); #define foreach_vlib_module_reference \ _ (node_cli) \ _ (trace_cli) @@ -228,6 +341,7 @@ clib_error_t *vlib_call_init_exit_functions (struct vlib_main_t *vm, #define _(x) void vlib_##x##_reference (void); foreach_vlib_module_reference #undef _ +#define VLIB_INITS(...) (char*[]) { __VA_ARGS__, 0} #endif /* included_vlib_init_h */ /* * fd.io coding-style-patch-verification: ON