/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+#include <stdarg.h>
#include "smx_context_sysv_private.h"
#include "xbt/parmap.h"
#include "simix/private.h"
smx_ctx_sysv_create_context(xbt_main_func_t code, int argc, char **argv,
void_pfn_smxprocess_t cleanup_func, void* data);
-static void smx_ctx_sysv_wrapper(smx_ctx_sysv_t context);
+static void smx_ctx_sysv_wrapper(int count, ...);
void SIMIX_ctx_sysv_factory_init(smx_context_factory_t *factory)
{
void_pfn_smxprocess_t cleanup_func,
void *data)
{
-
+ uintptr_t ctx_addr;
smx_ctx_sysv_t context =
(smx_ctx_sysv_t) smx_ctx_base_factory_create_context_sized(size,
code,
((char *) context->uc.uc_stack.ss_sp) +
context->uc.uc_stack.ss_size);
#endif /* HAVE_VALGRIND_VALGRIND_H */
-
- makecontext(&((smx_ctx_sysv_t) context)->uc, (void (*)())smx_ctx_sysv_wrapper,
- sizeof(void*)/sizeof(int), context);
+ ctx_addr = (uintptr_t)context;
+ /* This switch select a case base on a static value: the compiler optimizes it out */
+ /* It could be replaced by a set of #ifdef/#else/#endif blocks */
+ switch(sizeof(uintptr_t) / sizeof(int)) {
+ case 1:
+ makecontext(&((smx_ctx_sysv_t) context)->uc, (void (*)())smx_ctx_sysv_wrapper,
+ 2, 1, (int)ctx_addr);
+ break;
+ case 2:
+ makecontext(&((smx_ctx_sysv_t) context)->uc, (void (*)())smx_ctx_sysv_wrapper,
+ 3, 2, (int)(ctx_addr >> (8 * sizeof(int))), (int)(ctx_addr));
+ break;
+ default:
+ THROW_IMPOSSIBLE;
+ }
}else{
maestro_context = context;
}
smx_ctx_sysv_suspend(context);
}
-void smx_ctx_sysv_wrapper(smx_ctx_sysv_t context)
+void smx_ctx_sysv_wrapper(int count, ...)
{
+ uintptr_t ctx_addr = 0;
+ va_list ap;
+ smx_ctx_sysv_t context;
+ int i;
+
+ va_start(ap, count);
+ for(i = 0; i < count; i++) {
+ ctx_addr <<= 8*sizeof(int);
+ ctx_addr |= (uintptr_t)va_arg(ap, int);
+ }
+ va_end(ap);
+ context = (smx_ctx_sysv_t)ctx_addr;
(context->super.code) (context->super.argc, context->super.argv);
smx_ctx_sysv_stop((smx_context_t) context);