#define MC_PROCESS_H
#include <stdbool.h>
+#include <sys/types.h>
#include "simgrid_config.h"
-
#include <sys/types.h>
#include <xbt/mmalloc.h>
+
+#ifdef HAVE_MC
#include "xbt/mmalloc/mmprivate.h"
+#endif
+#include <simgrid/simix.h>
#include "simix/popping_private.h"
+#include "simix/smx_private.h"
#include "mc_forward.h"
#include "mc_mmalloc.h" // std_heap
#include "mc_memory_map.h"
+#include "mc_address_space.h"
+#include "mc_protocol.h"
SG_BEGIN_DECL()
-typedef enum {
- MC_PROCESS_NO_FLAG = 0,
- MC_PROCESS_SELF_FLAG = 1,
-} e_mc_process_flags_t;
+int MC_process_vm_open(pid_t pid, int flags);
+
+typedef int mc_process_flags_t;
+#define MC_PROCESS_NO_FLAG 0
+#define MC_PROCESS_SELF_FLAG 1
// Those flags are used to track down which cached information
// is still up to date and which information needs to be updated.
-typedef enum {
- MC_PROCESS_CACHE_FLAG_HEAP = 1,
- MC_PROCESS_CACHE_FLAG_MALLOC_INFO = 2,
-} e_mc_process_cache_flags_t ;
+typedef int mc_process_cache_flags_t;
+#define MC_PROCESS_CACHE_FLAG_NONE 0
+#define MC_PROCESS_CACHE_FLAG_HEAP 1
+#define MC_PROCESS_CACHE_FLAG_MALLOC_INFO 2
+#define MC_PROCESS_CACHE_FLAG_SIMIX_PROCESSES 4
+
+typedef struct s_mc_smx_process_info s_mc_smx_process_info_t, *mc_smx_process_info_t;
/** Representation of a process
*/
struct s_mc_process {
- e_mc_process_flags_t process_flags;
+ s_mc_address_space_t address_space;
+ mc_process_flags_t process_flags;
pid_t pid;
+ int socket;
+ int status;
+ bool running;
memory_map_t memory_map;
void *maestro_stack_start, *maestro_stack_end;
mc_object_info_t libsimgrid_info;
size_t object_infos_size;
int memory_file;
- // Cache: don't use those fields directly but with the getters
- // which ensure that proper synchronisation has been done.
-
- e_mc_process_cache_flags_t cache_flags;
+ /** Copy of `simix_global->process_list`
+ *
+ * See mc_smx.c.
+ */
+ xbt_dynar_t smx_process_infos;
- /** Address of the heap structure in the target process.
+ /** Copy of `simix_global->process_to_destroy`
+ *
+ * See mc_smx.c.
*/
+ xbt_dynar_t smx_old_process_infos;
+
+ /** State of the cache (which variables are up to date) */
+ mc_process_cache_flags_t cache_flags;
+
+ /** Address of the heap structure in the MCed process. */
void* heap_address;
/** Copy of the heap structure of the process
* use `MC_process_get_malloc_info` in order to use it.
*/
malloc_info* heap_info;
+
+ // ***** Libunwind-data
+
+ /** Full-featured MC-aware libunwind address space for the process
+ *
+ * This address space is using a mc_unw_context_t
+ * (with mc_process_t/mc_address_space_t and unw_context_t).
+ */
+ unw_addr_space_t unw_addr_space;
+
+ /** Underlying libunwind addres-space
+ *
+ * The `find_proc_info`, `put_unwind_info`, `get_dyn_info_list_addr`
+ * operations of the native MC address space is currently delegated
+ * to this address space (either the local or a ptrace unwinder).
+ */
+ unw_addr_space_t unw_underlying_addr_space;
+
+ /** The corresponding context
+ */
+ void* unw_underlying_context;
+
+ xbt_dynar_t checkpoint_ignore;
};
-void MC_process_init(mc_process_t process, pid_t pid);
+bool MC_is_process(mc_address_space_t p);
+
+void MC_process_init(mc_process_t process, pid_t pid, int sockfd);
void MC_process_clear(mc_process_t process);
/** Refresh the information about the process
* @param remote target process memory address (source)
* @param len data size
*/
-void MC_process_read(mc_process_t process, void* local, const void* remote, size_t len);
+const void* MC_process_read(mc_process_t process,
+ adress_space_read_flags_t flags,
+ void* local, const void* remote, size_t len,
+ int process_index);
+
+// Simplified versions/wrappers (whould be moved in mc_address_space):
+const void* MC_process_read_simple(mc_process_t process,
+ void* local, const void* remote, size_t len);
+const void* MC_process_read_dynar_element(mc_process_t process,
+ void* local, const void* remote_dynar, size_t i, size_t len);
+unsigned long MC_process_read_dynar_length(mc_process_t process, const void* remote_dynar);
/** Write data to a process memory
*
*/
void MC_process_write(mc_process_t process, const void* local, void* remote, size_t len);
+void MC_process_clear_memory(mc_process_t process, void* remote, size_t len);
+
/* Functions, variables of the process: */
-mc_object_info_t MC_process_find_object_info(mc_process_t process, void* ip);
-dw_frame_t MC_process_find_function(mc_process_t process, void* ip);
+mc_object_info_t MC_process_find_object_info(mc_process_t process, const void* addr);
+mc_object_info_t MC_process_find_object_info_exec(mc_process_t process, const void* addr);
+mc_object_info_t MC_process_find_object_info_rw(mc_process_t process, const void* addr);
+
+dw_frame_t MC_process_find_function(mc_process_t process, const void* ip);
+
+void MC_process_read_variable(mc_process_t process, const char* name, void* target, size_t size);
+char* MC_process_read_string(mc_process_t, void* address);
static inline xbt_mheap_t MC_process_get_heap(mc_process_t process)
{
*/
dw_variable_t MC_process_find_variable_by_name(mc_process_t process, const char* name);
+void MC_invalidate_cache(void);
+
SG_END_DECL()
#endif
