X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7397c70eb4b770d50734e24b44d8a6ef146c911c..385f8e9f92c6ee135a5b06244ab47b4c4859f357:/src/simix/smx_context_raw.c

diff --git a/src/simix/smx_context_raw.c b/src/simix/smx_context_raw.c
index 71c35ffc59..b91dfd67ae 100644
--- a/src/simix/smx_context_raw.c
+++ b/src/simix/smx_context_raw.c
@@ -33,16 +33,17 @@ typedef struct s_smx_ctx_raw {
   s_smx_ctx_base_t super;       /* Fields of super implementation */
   char *malloced_stack; /* malloced area containing the stack */
   raw_stack_t stack_top; /* pointer to stack top (within previous area) */
+  raw_stack_t old_stack_top; /* to whom I should return the control */
 #ifdef HAVE_VALGRIND_VALGRIND_H
   unsigned int valgrind_stack_id;       /* the valgrind stack id */
 #endif
 } s_smx_ctx_raw_t, *smx_ctx_raw_t;
 
-smx_ctx_raw_t maestro_context;
+smx_ctx_raw_t maestro_raw_context;
 
 extern raw_stack_t raw_makecontext(char* malloced_stack, int stack_size,
                                    rawctx_entry_point_t entry_point, void* arg);
-extern void raw_swapcontext(raw_stack_t* old, raw_stack_t* new);
+extern void raw_swapcontext(raw_stack_t* old, raw_stack_t new);
 
 #ifdef PROCESSOR_i686
 __asm__ (
@@ -77,7 +78,7 @@ __asm__ (
    "   pushl %esi\n"
    "   pushl %edi\n"
    "   movl %esp,(%eax)\n"
-   "   movl (%edx),%esp\n"
+   "   movl %edx,%esp\n"
    "   popl %edi\n"
    "   popl %esi\n"
    "   popl %ebx\n"
@@ -128,7 +129,7 @@ __asm__ (
    "   pushq %r14\n"
    "   pushq %r15\n"
    "   movq %rsp,(%rdi)\n" /* old */
-   "   movq (%rsi),%rsp\n" /* new */
+   "   movq %rsi,%rsp\n" /* new */
    "   popq %r15\n"
    "   popq %r14\n"
    "   popq %r13\n"
@@ -149,7 +150,7 @@ raw_stack_t raw_makecontext(char* malloced_stack, int stack_size,
    THROW_UNIMPLEMENTED;
 }
 
-void raw_swapcontext(raw_stack_t* old, raw_stack_t* new) {
+void raw_swapcontext(raw_stack_t* old, raw_stack_t new) {
    THROW_UNIMPLEMENTED;
 }
 
@@ -199,7 +200,7 @@ smx_ctx_raw_create_context_sized(size_t size, xbt_main_func_t code,
 #endif                          /* HAVE_VALGRIND_VALGRIND_H */
 
      }else{
-       maestro_context = context;
+       maestro_raw_context = context;
      }
 
      return (smx_context_t) context;
@@ -234,8 +235,10 @@ static void smx_ctx_raw_free(smx_context_t context)
 
 static void smx_ctx_raw_suspend(smx_context_t context)
 {
-  smx_current_context = (smx_context_t)maestro_context;
-  raw_swapcontext(&((smx_ctx_raw_t) context)->stack_top, &maestro_context->stack_top);
+  smx_current_context = (smx_context_t)maestro_raw_context;
+  raw_swapcontext(
+      &((smx_ctx_raw_t) context)->stack_top,
+      ((smx_ctx_raw_t) context)->old_stack_top);
 }
 
 static void smx_ctx_raw_stop(smx_context_t context)
@@ -254,7 +257,9 @@ static void smx_ctx_raw_wrapper(smx_ctx_raw_t context)
 static void smx_ctx_raw_resume(smx_context_t context)
 {
   smx_current_context = context; 
-  raw_swapcontext(&maestro_context->stack_top, &((smx_ctx_raw_t) context)->stack_top);
+  raw_swapcontext(
+      &((smx_ctx_raw_t) context)->old_stack_top,
+      ((smx_ctx_raw_t) context)->stack_top);
 }
 
 static void smx_ctx_raw_runall(xbt_swag_t processes)
@@ -268,7 +273,10 @@ static void smx_ctx_raw_runall(xbt_swag_t processes)
 static void smx_ctx_raw_resume_parallel(smx_context_t context)
 {
   xbt_os_thread_set_extra_data(context);
-  raw_swapcontext(&maestro_context->stack_top, &((smx_ctx_raw_t) context)->stack_top);
+  raw_swapcontext(
+      &((smx_ctx_raw_t) context)->old_stack_top,
+      ((smx_ctx_raw_t) context)->stack_top);
+  xbt_os_thread_set_extra_data(NULL);
 }
 
 static void smx_ctx_raw_runall_parallel(xbt_swag_t processes)
@@ -283,11 +291,12 @@ static void smx_ctx_raw_runall_parallel(xbt_swag_t processes)
 static smx_context_t smx_ctx_raw_self_parallel(void)
 {
   smx_context_t self_context = (smx_context_t) xbt_os_thread_get_extra_data();
-  return self_context ? self_context : (smx_context_t) maestro_context;
+  return self_context ? self_context : (smx_context_t) maestro_raw_context;
 }
 
 void SIMIX_ctx_raw_factory_init(smx_context_factory_t *factory)
 {
+  INFO0("Using raw contexts. Because the glibc is just not good enough for us.");
   smx_ctx_base_factory_init(factory);
 
   (*factory)->finalize  = smx_ctx_raw_factory_finalize;