#ifndef WIN32
#include <sys/mman.h>
#endif
+#include <elfutils/libdw.h>
+
#include "mc/mc.h"
#include "mc/datatypes.h"
#include "xbt/fifo.h"
#include "xbt/strbuff.h"
#include "xbt/parmap.h"
+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;
+
/****************************** Snapshots ***********************************/
#define NB_REGIONS 3 /* binary data (data + BSS) (type = 2), libsimgrid data (data + BSS) (type = 1), std_heap (type = 0)*/
size_t *stack_sizes;
xbt_dynar_t stacks;
xbt_dynar_t to_ignore;
- char hash_global[41];
- char hash_local[41];
+ uint64_t hash;
} s_mc_snapshot_t, *mc_snapshot_t;
+/** Information about a given stack frame
+ *
+ */
+typedef struct s_mc_stack_frame {
+ /** Instruction pointer */
+ unw_word_t ip;
+ /** Stack pointer */
+ unw_word_t sp;
+ unw_word_t frame_base;
+ dw_frame_t frame;
+ char* frame_name;
+ unw_cursor_t unw_cursor;
+} s_mc_stack_frame_t, *mc_stack_frame_t;
+
typedef struct s_mc_snapshot_stack{
xbt_dynar_t local_variables;
void *stack_pointer;
void *real_address;
+ xbt_dynar_t stack_frames; // mc_stack_frame_t
}s_mc_snapshot_stack_t, *mc_snapshot_stack_t;
typedef struct s_mc_global_t{
int raw_mem_set;
int prev_pair;
char *prev_req;
+ int initial_communications_pattern_done;
+ int comm_deterministic;
+ int send_deterministic;
}s_mc_global_t, *mc_global_t;
typedef struct s_mc_checkpoint_ignore_region{
double libsimgrid_global_variables_comparison_time;
double heap_comparison_time;
double stacks_comparison_time;
- double hash_global_variables_comparison_time;
- double hash_local_variables_comparison_time;
}s_mc_comparison_times_t, *mc_comparison_times_t;
extern __thread mc_comparison_times_t mc_comp_times;
//#define MC_DEBUG 1
#define MC_VERBOSE 1
-
/********************************** DPOR for safety property **************************************/
typedef enum {
extern mc_global_t initial_state_liveness;
extern xbt_automaton_t _mc_property_automaton;
extern int compare;
-extern xbt_dynar_t mc_stack_comparison_ignore;
-extern xbt_dynar_t mc_data_bss_comparison_ignore;
typedef struct s_mc_pair{
int num;
/********************************** Variables with DWARF **********************************/
-typedef struct s_mc_object_info {
+#define MC_OBJECT_INFO_EXECUTABLE 1
+
+struct s_mc_object_info {
+ size_t flags;
char* file_name;
- char* start_text;
- char* start_data;
- char* start_bss;
- void* start_plt;
- void* end_plt;
- void* start_got_plt;
- void* end_got_plt;
- xbt_dict_t local_variables;
- xbt_dynar_t global_variables;
- xbt_dict_t types;
-} s_mc_object_info_t, *mc_object_info_t;
-
-mc_object_info_t MC_new_object_info();
-mc_object_info_t MC_find_object_info(memory_map_t maps, char* name);
+ char *start_exec, *end_exec; // Executable segment
+ char *start_rw, *end_rw; // Read-write segment
+ char *start_ro, *end_ro; // read-only segment
+ xbt_dynar_t subprograms; // xbt_dynar_t<dw_frame_t>
+ xbt_dynar_t global_variables; // xbt_dynar_t<dw_variable_t>
+ xbt_dict_t types; // xbt_dict_t<origin as hexadecimal string, dw_type_t>
+ xbt_dict_t types_by_name; // xbt_dict_t<name, dw_type_t> (full defined type only)
+
+ // Here we sort the minimal information for an efficient (and cache-efficient)
+ // lookup of a function given an instruction pointer.
+ // The entries are sorted by low_pc and a binary search can be used to look them up.
+ xbt_dynar_t functions_index;
+};
+
+mc_object_info_t MC_new_object_info(void);
+mc_object_info_t MC_find_object_info(memory_map_t maps, char* name, int executable);
void MC_free_object_info(mc_object_info_t* p);
void MC_dwarf_get_variables(mc_object_info_t info);
+void MC_dwarf_get_variables_libdw(mc_object_info_t info);
+const char* MC_dwarf_attrname(int attr);
+const char* MC_dwarf_tagname(int tag);
+
+dw_frame_t MC_find_function_by_ip(void* ip);
+mc_object_info_t MC_ip_find_object_info(void* ip);
extern mc_object_info_t mc_libsimgrid_info;
extern mc_object_info_t mc_binary_info;
+void MC_find_object_address(memory_map_t maps, mc_object_info_t result);
+void MC_post_process_types(mc_object_info_t info);
+
typedef enum {
e_dw_loclist,
e_dw_register,
}s_dw_location_t, *dw_location_t;
typedef struct s_dw_location_entry{
- long lowpc;
- long highpc;
+ void* lowpc;
+ void* highpc;
dw_location_t location;
}s_dw_location_entry_t, *dw_location_entry_t;
typedef struct s_dw_variable{
+ Dwarf_Off dwarf_offset; /* Global offset of the field. */
int global;
char *name;
char *type_origin;
- union{
- dw_location_t location;
- void *address;
- }address;
+ dw_type_t type;
+
+ // Use either of:
+ dw_location_t location;
+ void* address;
+
+ size_t start_scope;
+
}s_dw_variable_t, *dw_variable_t;
-typedef struct s_dw_frame{
+struct s_dw_frame{
char *name;
void *low_pc;
void *high_pc;
dw_location_t frame_base;
- xbt_dynar_t variables; /* Cannot use dict, there may be several variables with the same name (in different lexical blocks)*/
- unsigned long int start;
- unsigned long int end;
-}s_dw_frame_t, *dw_frame_t;
+ xbt_dynar_t /* <dw_variable_t> */ variables; /* Cannot use dict, there may be several variables with the same name (in different lexical blocks)*/
+ unsigned long int start; /* DWARF offset of the subprogram */
+ unsigned long int end; /* Dwarf offset of the next sibling */
+};
+
+struct s_mc_function_index_item {
+ void* low_pc, *high_pc;
+ dw_frame_t function;
+};
+
+void dw_type_free(dw_type_t t);
+void dw_variable_free(dw_variable_t v);
+void dw_variable_free_voidp(void *t);
+
+void MC_dwarf_register_global_variable(mc_object_info_t info, dw_variable_t variable);
+void MC_register_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable);
+void MC_dwarf_register_non_global_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable);
+void MC_dwarf_register_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable);
+void* MC_object_base_address(mc_object_info_t info);
+
+/********************************** DWARF **********************************/
+
+Dwarf_Off MC_dwarf_resolve_location(unw_cursor_t* c, dw_location_t location, void* frame_pointer_address);
+void* mc_find_frame_base(void* ip, dw_frame_t frame, unw_cursor_t* unw_cursor);
/********************************** Miscellaneous **********************************/
char *frame;
unsigned long ip;
char *name;
- char *type;
+ dw_type_t type;
void *address;
int region;
}s_local_variable_t, *local_variable_t;
+/********************************* Communications pattern ***************************/
+
+typedef struct s_mc_comm_pattern{
+ int num;
+ smx_action_t comm;
+ e_smx_comm_type_t type;
+ int completed;
+ unsigned long src_proc;
+ unsigned long dst_proc;
+ const char *src_host;
+ const char *dst_host;
+ char *rdv;
+ size_t data_size;
+ void *data;
+ int matched_comm;
+}s_mc_comm_pattern_t, *mc_comm_pattern_t;
+
+extern xbt_dynar_t communications_pattern;
+
+void get_comm_pattern(xbt_dynar_t communications_pattern, smx_simcall_t request, int call);
+
+/* *********** Sets *********** */
+
+typedef struct s_mc_address_set *mc_address_set_t;
+
+mc_address_set_t mc_address_set_new();
+mc_address_set_t mc_address_set_free(mc_address_set_t* p);
+void mc_address_add(mc_address_set_t p, const void* value);
+bool mc_address_test(mc_address_set_t p, const void* value);
+
+/* *********** Hash *********** */
+
+/** \brief Hash the current state
+ * \param num_state number of states
+ * \param stacks stacks (mc_snapshot_stak_t) used fot the stack unwinding informations
+ * \result resulting hash
+ * */
+uint64_t mc_hash_processes_state(int num_state, xbt_dynar_t stacks);
+
#endif
