X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a2961c433a36e3277d50bd433fbd343e5f9bab74..15ab58c0b9a3d96ed52f5db885b72724a96af934:/src/mc/mc_private.h

diff --git a/src/mc/mc_private.h b/src/mc/mc_private.h
index c8fa6bd4aa..ef2afff19e 100644
--- a/src/mc/mc_private.h
+++ b/src/mc/mc_private.h
@@ -9,6 +9,7 @@
 
 #include "simgrid_config.h"
 #include <stdio.h>
+#include <stdbool.h>
 #ifndef WIN32
 #include <sys/mman.h>
 #endif
@@ -28,6 +29,9 @@
 #include "msg/datatypes.h"
 #include "xbt/strbuff.h"
 #include "xbt/parmap.h"
+#include "mc_mmu.h"
+
+SG_BEGIN_DECL()
 
 typedef struct s_dw_frame s_dw_frame_t, *dw_frame_t;
 typedef struct s_mc_function_index_item s_mc_function_index_item_t, *mc_function_index_item_t;
@@ -47,6 +51,13 @@ typedef struct s_mc_mem_region{
   size_t* page_numbers;
 } s_mc_mem_region_t, *mc_mem_region_t;
 
+static inline  __attribute__ ((always_inline))
+bool mc_region_contain(mc_mem_region_t region, void* p)
+{
+  return p >= region->start_addr &&
+    p < (void*)((char*) region->start_addr + region->size);
+}
+
 /** Ignored data
  *
  *  Some parts of the snapshot are ignored by zeroing them out: the real
@@ -71,6 +82,17 @@ typedef struct s_mc_snapshot{
   xbt_dynar_t ignored_data;
 } s_mc_snapshot_t, *mc_snapshot_t;
 
+mc_mem_region_t mc_get_snapshot_region(void* addr, mc_snapshot_t snapshot);
+
+static inline __attribute__ ((always_inline))
+mc_mem_region_t mc_get_region_hinted(void* addr, mc_snapshot_t snapshot, mc_mem_region_t region)
+{
+  if (mc_region_contain(region, addr))
+    return region;
+  else
+    return mc_get_snapshot_region(addr, snapshot);
+}
+
 /** Information about a given stack frame
  *
  */
@@ -105,14 +127,7 @@ typedef struct s_mc_checkpoint_ignore_region{
   size_t size;
 }s_mc_checkpoint_ignore_region_t, *mc_checkpoint_ignore_region_t;
 
-SG_BEGIN_DECL()
-
-inline static void* mc_snapshot_get_heap_end(mc_snapshot_t snapshot) {
-  if(snapshot==NULL)
-    xbt_die("snapshot is NULL");
-  xbt_mheap_t heap = (xbt_mheap_t)snapshot->regions[0]->data;
-  return heap->breakval;
-}
+static void* mc_snapshot_get_heap_end(mc_snapshot_t snapshot);
 
 mc_snapshot_t SIMIX_pre_mc_snapshot(smx_simcall_t simcall);
 mc_snapshot_t MC_take_snapshot(int num_state);
@@ -132,6 +147,22 @@ void mc_softdirty_reset();
 typedef struct s_mc_pages_store s_mc_pages_store_t, * mc_pages_store_t;
 mc_pages_store_t mc_pages_store_new();
 
+static inline __attribute__((always_inline))
+bool mc_snapshot_region_linear(mc_mem_region_t region) {
+  return !region || !region->data;
+}
+
+void* mc_snapshot_read_region(void* addr, mc_mem_region_t region, void* target, size_t size);
+void* mc_snapshot_read(void* addr, mc_snapshot_t snapshot, void* target, size_t size);
+int mc_snapshot_region_memcp(
+  void* addr1, mc_mem_region_t region1,
+  void* addr2, mc_mem_region_t region2, size_t size);
+int mc_snapshot_memcp(
+  void* addr1, mc_snapshot_t snapshot1,
+  void* addr2, mc_snapshot_t snapshot2, size_t size);
+
+static void* mc_snapshot_read_pointer(void* addr, mc_snapshot_t snapshot);
+
 /** @brief State of the model-checker (global variables for the model checker)
  *
  *  Each part of the state of the model chercker represented as a global
@@ -149,31 +180,6 @@ typedef struct s_mc_model_checker {
 
 extern mc_model_checker_t mc_model_checker;
 
-/** \brief Translate a pointer from process address space to snapshot address space
- *
- *  The address space contains snapshot of the main/application memory:
- *  this function finds the address in a given snaphot for a given
- *  real/application address.
- *
- *  For read only memory regions and other regions which are not int the
- *  snapshot, the address is not changed.
- *
- *  \param addr     Application address
- *  \param snapshot The snapshot of interest (if NULL no translation is done)
- *  \return         Translated address in the snapshot address space
- * */
-void* mc_translate_address(uintptr_t addr, mc_snapshot_t snapshot);
-
-/** \brief Translate a pointer from the snapshot address space to the application address space
- *
- *  This is the inverse of mc_translate_address.
- *
- * \param addr    Address in the snapshot address space
- * \param snapsot Snapshot of interest (if NULL no translation is done)
- * \return        Translated address in the application address space
- */
-uintptr_t mc_untranslate_address(void* addr, mc_snapshot_t snapshot);
-
 extern xbt_dynar_t mc_checkpoint_ignore;
 
 /********************************* MC Global **********************************/
@@ -509,7 +515,6 @@ struct s_dw_type{
 };
 
 void* mc_member_resolve(const void* base, dw_type_t type, dw_type_t member, mc_snapshot_t snapshot);
-void* mc_member_snapshot_resolve(const void* base, dw_type_t type, dw_type_t member, mc_snapshot_t snapshot);
 
 typedef struct s_dw_variable{
   Dwarf_Off dwarf_offset; /* Global offset of the field. */
@@ -650,6 +655,23 @@ bool mc_address_test(mc_address_set_t p, const void* value);
  * */
 uint64_t mc_hash_processes_state(int num_state, xbt_dynar_t stacks);
 
+//
+
+static inline __attribute__ ((always_inline))
+  void* mc_snapshot_get_heap_end(mc_snapshot_t snapshot) {
+  if(snapshot==NULL)
+      xbt_die("snapshot is NULL");
+  void** addr = &((xbt_mheap_t)std_heap)->breakval;
+  return mc_snapshot_read_pointer(addr, snapshot);
+}
+
+static inline __attribute__ ((always_inline))
+void* mc_snapshot_read_pointer(void* addr, mc_snapshot_t snapshot)
+{
+  void* res;
+  return *(void**) mc_snapshot_read(addr, snapshot, &res, sizeof(void*));
+}
+
 SG_END_DECL()
 
 #endif