+++ /dev/null
-/* Copyright (c) 2008-2015. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef SIMGRID_MC_PROCESS_H
-#define SIMGRID_MC_PROCESS_H
-
-#include <type_traits>
-
-#include <sys/types.h>
-
-#include <vector>
-#include <memory>
-
-#include "simgrid_config.h"
-#include <sys/types.h>
-
-#include <xbt/base.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.hpp"
-#include "mc_base.h"
-#include "mc_mmalloc.h" // std_heap
-#include "mc_memory_map.h"
-#include "AddressSpace.hpp"
-#include "mc_protocol.h"
-
-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 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;
-
-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,
- remote_ptr<void> address, int process_index = ProcessIndexAny,
- ReadMode mode = Normal) const 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:
- std::shared_ptr<simgrid::mc::ObjectInformation> find_object_info(remote_ptr<void> addr) const;
- std::shared_ptr<simgrid::mc::ObjectInformation> find_object_info_exec(remote_ptr<void> addr) const;
- std::shared_ptr<simgrid::mc::ObjectInformation> find_object_info_rw(remote_ptr<void> addr) const;
- simgrid::mc::Frame* find_function(remote_ptr<void> ip) const;
- simgrid::mc::Variable* 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_;
- }
-
- template<class M>
- typename std::enable_if< std::is_class<M>::value && std::is_trivial<M>::value, int >::type
- send_message(M const& m)
- {
- return MC_protocol_send(this->socket_, &m, sizeof(M));
- }
-
- int send_message(e_mc_message_type message_id)
- {
- return MC_protocol_send_simple_message(this->socket_, message_id);
- }
-
- template<class M>
- typename std::enable_if< std::is_class<M>::value && std::is_trivial<M>::value, ssize_t >::type
- receive_message(M& m)
- {
- return MC_receive_message(this->socket_, &m, sizeof(M), 0);
- }
-
- void reset_soft_dirty();
- void read_pagemap(uint64_t* pagemap, size_t start_page, size_t page_count);
-
-private:
- void init_memory_map_info();
- void refresh_heap();
- void refresh_malloc_info();
-private:
- mc_process_flags_t process_flags;
- pid_t pid_;
- int socket_;
- int status_;
- bool running_;
- std::vector<VmMap> memory_map_;
- remote_ptr<void> maestro_stack_start_, maestro_stack_end_;
- int memory_file;
- std::vector<IgnoredRegion> ignored_regions_;
- int clear_refs_fd_;
- int pagemap_fd_;
-public: // object info
- // TODO, make private (first, objectify simgrid::mc::ObjectInformation*)
- std::vector<std::shared_ptr<simgrid::mc::ObjectInformation>> object_infos;
- std::shared_ptr<simgrid::mc::ObjectInformation> libsimgrid_info;
- std::shared_ptr<simgrid::mc::ObjectInformation> binary_info;
-
-public: // Copies of MCed SMX data structures
- /** Copy of `simix_global->process_list`
- *
- * See mc_smx.c.
- */
- xbt_dynar_t smx_process_infos;
-
- /** 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
- *
- * This is refreshed with the `MC_process_refresh` call.
- * This is not used if the process is the current one:
- * use `get_heap_info()` in order to use it.
- */
- xbt_mheap_t heap;
-
- /** Copy of the allocation info structure
- *
- * This is refreshed with the `MC_process_refresh` call.
- * This is not used if the process is the current one:
- * use `get_malloc_info()` in order to use it.
- */
- malloc_info* heap_info;
-
-public: // Libunwind-data
-
- /** Full-featured MC-aware libunwind address space for the process
- *
- * This address space is using a mc_unw_context_t
- * (with simgrid::mc::Process* / simgrid::mc::AddressSpace*
- * 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;
-};
-
-/** Open a FD to a remote process memory (`/dev/$pid/mem`)
- */
-XBT_PRIVATE int open_vm(pid_t pid, int flags);
-
-}
-}
-
-SG_BEGIN_DECL()
-
-XBT_PRIVATE void MC_invalidate_cache(void);
-
-SG_END_DECL()
-
-#endif
