#include <stdbool.h>
#include <sys/types.h>
+#include <vector>
+
#include "simgrid_config.h"
#include <sys/types.h>
namespace simgrid {
namespace mc {
+struct IgnoredRegion {
+ std::uint64_t addr;
+ size_t size;
+};
+
/** Representation of a process
*/
class Process : public AddressSpace {
public:
Process(pid_t pid, int sockfd);
~Process();
+
+ bool is_self() const
+ {
+ return this->process_flags & MC_PROCESS_SELF_FLAG;
+ }
+
+ // Read memory:
const void* read_bytes(void* buffer, std::size_t size,
- std::uint64_t address, int process_index = ProcessIndexAny,
- ReadMode mode = Normal) override;
-public: // to be private
+ remote_ptr<void> address, int process_index = ProcessIndexAny,
+ ReadMode mode = Normal) const MC_OVERRIDE;
+ void read_variable(const char* name, void* target, size_t size) const;
+ template<class T>
+ T read_variable(const char *name) const
+ {
+ static_assert(std::is_trivial<T>::value, "Cannot read a non-trivial type");
+ T res;
+ read_variable(name, &res, sizeof(T));
+ return res;
+ }
+ char* read_string(remote_ptr<void> address) const;
+
+ // Write memory:
+ void write_bytes(const void* buffer, size_t len, remote_ptr<void> address);
+ void clear_bytes(remote_ptr<void> address, size_t len);
+
+ // Debug information:
+ mc_object_info_t find_object_info(remote_ptr<void> addr) const;
+ mc_object_info_t find_object_info_exec(remote_ptr<void> addr) const;
+ mc_object_info_t find_object_info_rw(remote_ptr<void> addr) const;
+ dw_frame_t find_function(remote_ptr<void> ip) const;
+ dw_variable_t find_variable(const char* name) const;
+
+ // Heap access:
+ xbt_mheap_t get_heap()
+ {
+ if (!(this->cache_flags & MC_PROCESS_CACHE_FLAG_HEAP))
+ this->refresh_heap();
+ return this->heap;
+ }
+ malloc_info* get_malloc_info()
+ {
+ if (!(this->cache_flags & MC_PROCESS_CACHE_FLAG_MALLOC_INFO))
+ this->refresh_malloc_info();
+ return this->heap_info;
+ }
+
+ std::vector<IgnoredRegion> const& ignored_regions() const
+ {
+ return ignored_regions_;
+ }
+ void ignore_region(std::uint64_t address, std::size_t size);
+
+ pid_t pid() const { return pid_; }
+
+ bool in_maestro_stack(remote_ptr<void> p) const
+ {
+ return p >= this->maestro_stack_start_ && p < this->maestro_stack_end_;
+ }
+
+ bool running() const
+ {
+ return running_;
+ }
+
+ void terminate(int status)
+ {
+ status_ = status;
+ running_ = false;
+ }
+
+ int status() const
+ {
+ return status_;
+ }
+
+private:
+ void init_memory_map_info();
+ void refresh_heap();
+ void refresh_malloc_info();
+private:
mc_process_flags_t process_flags;
- pid_t pid;
+ pid_t pid_;
+public: // to be private
int socket;
- int status;
- bool running;
+private:
+ int status_;
+ bool running_;
memory_map_t memory_map;
- void *maestro_stack_start, *maestro_stack_end;
+ remote_ptr<void> maestro_stack_start_, maestro_stack_end_;
+ int memory_file;
+ std::vector<IgnoredRegion> ignored_regions_;
+
+public: // object info
+ // TODO, make private (first, objectify mc_object_info_t)
mc_object_info_t libsimgrid_info;
mc_object_info_t binary_info;
mc_object_info_t* object_infos;
size_t object_infos_size;
- int memory_file;
+public: // Copies of MCed SMX data structures
/** Copy of `simix_global->process_list`
*
* See mc_smx.c.
*
* This is refreshed with the `MC_process_refresh` call.
* This is not used if the process is the current one:
- * use `MC_process_get_heap_info` in order to use it.
+ * use `get_heap_info()` in order to use it.
*/
xbt_mheap_t heap;
*
* This is refreshed with the `MC_process_refresh` call.
* This is not used if the process is the current one:
- * use `MC_process_get_malloc_info` in order to use it.
+ * use `get_malloc_info()` in order to use it.
*/
malloc_info* heap_info;
- // ***** Libunwind-data
+public: // Libunwind-data
/** Full-featured MC-aware libunwind address space for the process
*
/** The corresponding context
*/
void* unw_underlying_context;
-
- xbt_dynar_t checkpoint_ignore;
};
-}
-}
-
-SG_BEGIN_DECL()
-
-int MC_process_vm_open(pid_t pid, int flags);
-
-/** Refresh the information about the process
- *
- * Do not use direclty, this is used by the getters when appropriate
- * in order to have fresh data.
+/** Open a FD to a remote process memory (`/dev/$pid/mem`)
*/
-XBT_INTERNAL void MC_process_refresh_heap(mc_process_t process);
-
-/** Refresh the information about the process
- *
- * Do not use direclty, this is used by the getters when appropriate
- * in order to have fresh data.
- * */
-XBT_INTERNAL void MC_process_refresh_malloc_info(mc_process_t process);
-
-static inline
-bool MC_process_is_self(mc_process_t process)
-{
- return process->process_flags & MC_PROCESS_SELF_FLAG;
-}
-
-/* Process memory access: */
-
-static inline
-const void* MC_process_read(mc_process_t process,
- simgrid::mc::AddressSpace::ReadMode mode,
- void* local, const void* remote, size_t len,
- int process_index)
-{
- return process->read_bytes(local, len, (std::uint64_t)remote, process_index, mode);
-}
-
-// Simplified versions/wrappers (whould be moved in mc_address_space):
-static inline const void* MC_process_read_simple(mc_process_t process,
- void* local, const void* remote, size_t len)
-{
- return process->read_bytes(local, len, (std::uint64_t)remote);
-}
-
-XBT_INTERNAL const void* MC_process_read_dynar_element(mc_process_t process,
- void* local, const void* remote_dynar, size_t i, size_t len);
-XBT_INTERNAL unsigned long MC_process_read_dynar_length(mc_process_t process,
- const void* remote_dynar);
-
-/** Write data to a process memory
- *
- * @param process the process
- * @param local local memory address (source)
- * @param remote target process memory address (target)
- * @param len data size
- */
-XBT_INTERNAL void MC_process_write(mc_process_t process,
- const void* local, void* remote, size_t len);
+int open_vm(pid_t pid, int flags);
-XBT_INTERNAL void MC_process_clear_memory(mc_process_t process,
- void* remote, size_t len);
-
-/* Functions, variables of the process: */
-
-XBT_INTERNAL mc_object_info_t MC_process_find_object_info(mc_process_t process, const void* addr);
-XBT_INTERNAL mc_object_info_t MC_process_find_object_info_exec(mc_process_t process, const void* addr);
-XBT_INTERNAL mc_object_info_t MC_process_find_object_info_rw(mc_process_t process, const void* addr);
-
-XBT_INTERNAL dw_frame_t MC_process_find_function(mc_process_t process, const void* ip);
-
-XBT_INTERNAL void MC_process_read_variable(mc_process_t process, const char* name, void* target, size_t size);
-XBT_INTERNAL char* MC_process_read_string(mc_process_t, void* address);
-
-static inline xbt_mheap_t MC_process_get_heap(mc_process_t process)
-{
- if (!(process->cache_flags & MC_PROCESS_CACHE_FLAG_HEAP))
- MC_process_refresh_heap(process);
- return process->heap;
}
-
-static inline malloc_info* MC_process_get_malloc_info(mc_process_t process)
-{
- if (!(process->cache_flags & MC_PROCESS_CACHE_FLAG_MALLOC_INFO))
- MC_process_refresh_malloc_info(process);
- return process->heap_info;
}
-/** Find (one occurence of) the named variable definition
- */
-XBT_INTERNAL dw_variable_t MC_process_find_variable_by_name(mc_process_t process, const char* name);
+SG_BEGIN_DECL()
XBT_INTERNAL void MC_invalidate_cache(void);
