#include "xbt/parmap.h"
#include "mc_mmu.h"
#include "mc_page_store.h"
+#include "mc_interface.h"
SG_BEGIN_DECL()
/****************************** Snapshots ***********************************/
-#define NB_REGIONS 3 /* binary data (data + BSS) (type = 2), libsimgrid data (data + BSS) (type = 1), std_heap (type = 0)*/
+#define NB_REGIONS 3 /* binary data (data + BSS) (type = 2), libsimgrid data (data + BSS) (type = 1), std_heap (type = 0)*/
/** @brief Copy/snapshot of a given memory region
*
xbt_dynar_t to_ignore;
uint64_t hash;
xbt_dynar_t ignored_data;
-} s_mc_snapshot_t, *mc_snapshot_t;
+} s_mc_snapshot_t;
/** @brief Process index used when no process is available
*
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);
void MC_restore_snapshot(mc_snapshot_t);
void MC_free_snapshot(mc_snapshot_t);
void MC_show_deadlock(smx_simcall_t req);
void MC_show_stack_safety(xbt_fifo_t stack);
void MC_dump_stack_safety(xbt_fifo_t stack);
-int SIMIX_pre_mc_random(smx_simcall_t simcall, int min, int max);
extern xbt_fifo_t mc_stack;
int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max);
unsigned int MC_request_testany_fail(smx_simcall_t req);
/*int MC_waitany_is_enabled_by_comm(smx_req_t req, unsigned int comm);*/
int MC_request_is_visible(smx_simcall_t req);
+
+/** Can this requests can be executed.
+ *
+ * Most requests are always enabled but WAIT and WAITANY
+ * are not always enabled: a WAIT where the communication does not
+ * have both a source and a destination yet is not enabled
+ * (unless timeout is enabled in the wait and enabeld in SimGridMC).
+ */
int MC_request_is_enabled(smx_simcall_t req);
int MC_request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx);
+
+/** Is the process ready to execute its simcall?
+ *
+ * This is true if the request associated with the process is ready.
+ */
int MC_process_is_enabled(smx_process_t process);
+
char *MC_request_get_dot_output(smx_simcall_t req, int value);
extern __thread double mc_snapshot_comparison_time;
int snapshot_compare(void *state1, void *state2);
-int SIMIX_pre_mc_compare_snapshots(smx_simcall_t simcall, mc_snapshot_t s1, mc_snapshot_t s2);
void print_comparison_times(void);
//#define MC_DEBUG 1
mc_expression_t locations;
} s_mc_location_list_t, *mc_location_list_t;
-uintptr_t mc_dwarf_resolve_location(mc_expression_t expression, mc_object_info_t object_info, unw_cursor_t* c, void* frame_pointer_address, mc_snapshot_t snapshot, int process_index);
-uintptr_t mc_dwarf_resolve_locations(mc_location_list_t locations, mc_object_info_t object_info, unw_cursor_t* c, void* frame_pointer_address, mc_snapshot_t snapshot, int process_index);
+/** A location is either a location in memory of a register location
+ *
+ * Usage:
+ *
+ * * mc_dwarf_resolve_locations or mc_dwarf_resolve_location is used
+ * to find the location of a given location expression or location list;
+ *
+ * * mc_get_location_type MUST be used to find the location type;
+ *
+ * * for MC_LOCATION_TYPE_ADDRESS, memory_address is the resulting address
+ *
+ * * for MC_LOCATION_TYPE_REGISTER, unw_get_reg(l.cursor, l.register_id, value)
+ * and unw_get_reg(l.cursor, l.register_id, value) can be used to read/write
+ * the value.
+ * </ul>
+ */
+typedef struct s_mc_location {
+ void* memory_location;
+ unw_cursor_t* cursor;
+ int register_id;
+} s_mc_location_t, *mc_location_t;
+
+/** Type of a given location
+ *
+ * Use `mc_get_location_type(location)` to find the type.
+ * */
+typedef enum mc_location_type {
+ MC_LOCATION_TYPE_ADDRESS,
+ MC_LOCATION_TYPE_REGISTER
+} mc_location_type;
+
+/** Find the type of a location */
+static inline __attribute__ ((always_inline))
+enum mc_location_type mc_get_location_type(mc_location_t location) {
+ if (location->cursor) {
+ return MC_LOCATION_TYPE_REGISTER;
+ } else {
+ return MC_LOCATION_TYPE_ADDRESS;
+ }
+}
+
+void mc_dwarf_resolve_location(mc_location_t location, mc_expression_t expression, mc_object_info_t object_info, unw_cursor_t* c, void* frame_pointer_address, mc_snapshot_t snapshot, int process_index);
+void mc_dwarf_resolve_locations(mc_location_t location, mc_location_list_t locations, mc_object_info_t object_info, unw_cursor_t* c, void* frame_pointer_address, mc_snapshot_t snapshot, int process_index);
void mc_dwarf_expression_clear(mc_expression_t expression);
void mc_dwarf_expression_init(mc_expression_t expression, size_t len, Dwarf_Op* ops);
extern xbt_dynar_t communications_pattern;
extern xbt_dynar_t incomplete_communications_pattern;
-void get_comm_pattern(xbt_dynar_t communications_pattern, smx_simcall_t request, int call);
+// Can we use the SIMIX syscall for this?
+typedef enum mc_call_type {
+ MC_CALL_TYPE_NONE,
+ MC_CALL_TYPE_SEND,
+ MC_CALL_TYPE_RECV,
+ MC_CALL_TYPE_WAIT,
+ MC_CALL_TYPE_WAITANY,
+} mc_call_type;
+
+static inline mc_call_type mc_get_call_type(smx_simcall_t req) {
+ switch(req->call) {
+ case SIMCALL_COMM_ISEND:
+ return MC_CALL_TYPE_SEND;
+ case SIMCALL_COMM_IRECV:
+ return MC_CALL_TYPE_RECV;
+ case SIMCALL_COMM_WAIT:
+ return MC_CALL_TYPE_WAIT;
+ case SIMCALL_COMM_WAITANY:
+ return MC_CALL_TYPE_WAITANY;
+ default:
+ return MC_CALL_TYPE_NONE;
+ }
+}
+
+void get_comm_pattern(xbt_dynar_t communications_pattern, smx_simcall_t request, mc_call_type call_type);
+void mc_update_comm_pattern(mc_call_type call_type, smx_simcall_t request, int value, xbt_dynar_t current_pattern);
void complete_comm_pattern(xbt_dynar_t list, smx_action_t comm);
void MC_pre_modelcheck_comm_determinism(void);
void MC_modelcheck_comm_determinism(void);
return *(void**) mc_snapshot_read_region(addr, region, &res, sizeof(void*));
}
+#define MC_LOG_REQUEST(log, req, value) \
+ if (XBT_LOG_ISENABLED(log, xbt_log_priority_debug)) { \
+ char* req_str = MC_request_to_string(req, value); \
+ XBT_DEBUG("Execute: %s", req_str); \
+ xbt_free(req_str); \
+ }
+
SG_END_DECL()
#endif
