/* 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. */
+#define _FILE_OFFSET_BITS 64
+
#include <assert.h>
#include <stddef.h>
#include <stdbool.h>
#include "mc_process.h"
#include "mc_object_info.h"
-#include "AddressSpace.hpp"
#include "mc_unw.h"
#include "mc_snapshot.h"
#include "mc_ignore.h"
#include "mc_smx.h"
#include "mc_server.h"
+#include "mc/AddressSpace.hpp"
+#include "mc/ObjectInformation.hpp"
+#include "mc/Variable.hpp"
+
using simgrid::mc::remote;
extern "C" {
// ***** Helper stuff
#define SO_RE "\\.so[\\.0-9]*$"
-#define VERSION_RE "-[\\.0-9]*$"
+#define VERSION_RE "-[\\.0-9-]*$"
static const char *const FILTERED_LIBS[] = {
- "libstdc++",
+ "ld",
+ "libbz2",
+ "libboost_context",
+ "libc",
"libc++",
- "libm",
+ "libcdt",
+ "libcgraph",
+ "libdl",
+ "libdw",
+ "libelf",
"libgcc_s",
+ "liblua5.1",
+ "liblzma",
+ "libm",
"libpthread",
+ "librt",
+ "libstdc++",
"libunwind",
"libunwind-x86_64",
"libunwind-x86",
"libunwind-ptrace",
- "libdw",
- "libdl",
- "librt",
- "liblzma",
- "libelf",
- "libbz2",
- "libz",
- "libelf",
- "libc",
- "ld"
+ "libz"
};
static bool MC_is_simgrid_lib(const char* libname)
return libname;
}
-static ssize_t pread_whole(int fd, void *buf, size_t count, off_t offset)
+static ssize_t pread_whole(int fd, void *buf, size_t count, std::uint64_t offset)
{
char* buffer = (char*) buf;
ssize_t real_count = count;
while (count) {
- ssize_t res = pread(fd, buffer, count, offset);
+ ssize_t res = pread(fd, buffer, count, (std::int64_t) offset);
if (res > 0) {
count -= res;
buffer += res;
Process* process = this;
process->process_flags = MC_PROCESS_NO_FLAG;
- process->socket = sockfd;
- process->pid = pid;
+ process->socket_ = sockfd;
+ process->pid_ = pid;
if (pid==getpid())
process->process_flags |= MC_PROCESS_SELF_FLAG;
- process->running = true;
- process->status = 0;
- process->memory_map = MC_get_memory_map(pid);
+ process->running_ = true;
+ process->status_ = 0;
+ process->memory_map_ = get_memory_map(pid);
process->cache_flags = MC_PROCESS_CACHE_FLAG_NONE;
process->heap = NULL;
process->heap_info = NULL;
if (process->is_self())
process->memory_file = -1;
else {
- int fd = open_vm(process->pid, O_RDWR);
+ int fd = open_vm(process->pid_, O_RDWR);
if (fd<0)
xbt_die("Could not open file for process virtual address space");
process->memory_file = fd;
}
// Read std_heap (is a struct mdesc*):
- dw_variable_t std_heap_var = process->find_variable("__mmalloc_default_mdp");
+ simgrid::mc::Variable* std_heap_var = process->find_variable("__mmalloc_default_mdp");
if (!std_heap_var)
xbt_die("No heap information in the target process");
if(!std_heap_var->address)
process->smx_process_infos = MC_smx_process_info_list_new();
process->smx_old_process_infos = MC_smx_process_info_list_new();
- process->checkpoint_ignore = MC_checkpoint_ignore_new();
-
process->unw_addr_space = unw_create_addr_space(&mc_unw_accessors , __BYTE_ORDER);
if (process->process_flags & MC_PROCESS_SELF_FLAG) {
process->unw_underlying_addr_space = unw_local_addr_space;
{
Process* process = this;
- process->process_flags = MC_PROCESS_NO_FLAG;
- process->pid = 0;
-
- MC_free_memory_map(process->memory_map);
- process->memory_map = NULL;
+ if (this->socket_ >= 0 && close(this->socket_) < 0)
+ xbt_die("Could not close communication socket");
- process->maestro_stack_start = NULL;
- process->maestro_stack_end = NULL;
+ process->process_flags = MC_PROCESS_NO_FLAG;
+ process->pid_ = 0;
- xbt_dynar_free(&process->checkpoint_ignore);
+ process->maestro_stack_start_ = nullptr;
+ process->maestro_stack_end_ = nullptr;
xbt_dynar_free(&process->smx_process_infos);
xbt_dynar_free(&process->smx_old_process_infos);
- size_t i;
- for (i=0; i!=process->object_infos_size; ++i) {
- MC_free_object_info(&process->object_infos[i]);
- }
- free(process->object_infos);
- process->object_infos = NULL;
- process->object_infos_size = 0;
if (process->memory_file >= 0) {
close(process->memory_file);
}
void Process::init_memory_map_info()
{
XBT_DEBUG("Get debug information ...");
- this->maestro_stack_start = NULL;
- this->maestro_stack_end = NULL;
- this->object_infos = NULL;
- this->object_infos_size = 0;
+ this->maestro_stack_start_ = nullptr;
+ this->maestro_stack_end_ = nullptr;
+ this->object_infos.resize(0);
this->binary_info = NULL;
this->libsimgrid_info = NULL;
if(regcomp(&res.so_re, SO_RE, 0) || regcomp(&res.version_re, VERSION_RE, 0))
xbt_die(".so regexp did not compile");
- memory_map_t maps = this->memory_map;
+ std::vector<simgrid::mc::VmMap> const& maps = this->memory_map_;
const char* current_name = NULL;
- for (ssize_t i=0; i < maps->mapsize; i++) {
- map_region_t reg = &(maps->regions[i]);
- const char* pathname = maps->regions[i].pathname;
+ this->object_infos.resize(0);
+
+ for (size_t i=0; i < maps.size(); i++) {
+ simgrid::mc::VmMap const& reg = maps[i];
+ const char* pathname = maps[i].pathname.c_str();
// Nothing to do
- if (maps->regions[i].pathname == NULL) {
+ if (maps[i].pathname.empty()) {
current_name = NULL;
continue;
}
// [stack], [vvar], [vsyscall], [vdso] ...
if (pathname[0] == '[') {
- if ((reg->prot & PROT_WRITE) && !memcmp(pathname, "[stack]", 7)) {
- this->maestro_stack_start = reg->start_addr;
- this->maestro_stack_end = reg->end_addr;
+ if ((reg.prot & PROT_WRITE) && !memcmp(pathname, "[stack]", 7)) {
+ this->maestro_stack_start_ = remote(reg.start_addr);
+ this->maestro_stack_end_ = remote(reg.end_addr);
}
current_name = NULL;
continue;
continue;
current_name = pathname;
- if (!(reg->prot & PROT_READ) && (reg->prot & PROT_EXEC))
+ if (!(reg.prot & PROT_READ) && (reg.prot & PROT_EXEC))
continue;
const bool is_executable = !i;
}
}
- mc_object_info_t info =
- MC_find_object_info(this->memory_map, pathname, is_executable);
- this->object_infos = (mc_object_info_t*) realloc(this->object_infos,
- (this->object_infos_size+1) * sizeof(mc_object_info_t*));
- this->object_infos[this->object_infos_size] = info;
- this->object_infos_size++;
+ std::shared_ptr<simgrid::mc::ObjectInformation> info =
+ MC_find_object_info(this->memory_map_, pathname, is_executable);
+ this->object_infos.push_back(info);
if (is_executable)
this->binary_info = info;
else if (libname && MC_is_simgrid_lib(libname))
regfree(&res.version_re);
// Resolve time (including accross differents objects):
- for (size_t i=0; i!=this->object_infos_size; ++i)
- MC_post_process_object_info(this, this->object_infos[i]);
+ for (auto const& object_info : this->object_infos)
+ MC_post_process_object_info(this, object_info.get());
- xbt_assert(this->maestro_stack_start, "Did not find maestro_stack_start");
- xbt_assert(this->maestro_stack_end, "Did not find maestro_stack_end");
+ xbt_assert(this->maestro_stack_start_, "Did not find maestro_stack_start");
+ xbt_assert(this->maestro_stack_end_, "Did not find maestro_stack_end");
XBT_DEBUG("Get debug information done !");
}
-mc_object_info_t Process::find_object_info(remote_ptr<void> addr) const
+std::shared_ptr<simgrid::mc::ObjectInformation> Process::find_object_info(remote_ptr<void> addr) const
{
- size_t i;
- for (i = 0; i != this->object_infos_size; ++i) {
- if (addr.address() >= (std::uint64_t)this->object_infos[i]->start
- && addr.address() <= (std::uint64_t)this->object_infos[i]->end) {
- return this->object_infos[i];
+ for (auto const& object_info : this->object_infos) {
+ if (addr.address() >= (std::uint64_t)object_info->start
+ && addr.address() <= (std::uint64_t)object_info->end) {
+ return object_info;
}
}
return NULL;
}
-mc_object_info_t Process::find_object_info_exec(remote_ptr<void> addr) const
+std::shared_ptr<ObjectInformation> Process::find_object_info_exec(remote_ptr<void> addr) const
{
- size_t i;
- for (i = 0; i != this->object_infos_size; ++i) {
- if (addr.address() >= (std::uint64_t)this->object_infos[i]->start_exec
- && addr.address() <= (std::uint64_t)this->object_infos[i]->end_exec) {
- return this->object_infos[i];
+ for (std::shared_ptr<ObjectInformation> const& info : this->object_infos) {
+ if (addr.address() >= (std::uint64_t) info->start_exec
+ && addr.address() <= (std::uint64_t) info->end_exec) {
+ return info;
}
}
- return NULL;
+ return nullptr;
}
-mc_object_info_t Process::find_object_info_rw(remote_ptr<void> addr) const
+std::shared_ptr<ObjectInformation> Process::find_object_info_rw(remote_ptr<void> addr) const
{
- size_t i;
- for (i = 0; i != this->object_infos_size; ++i) {
- if (addr.address() >= (std::uint64_t)this->object_infos[i]->start_rw
- && addr.address() <= (std::uint64_t)this->object_infos[i]->end_rw) {
- return this->object_infos[i];
+ for (std::shared_ptr<ObjectInformation> const& info : this->object_infos) {
+ if (addr.address() >= (std::uint64_t)info->start_rw
+ && addr.address() <= (std::uint64_t)info->end_rw) {
+ return info;
}
}
- return NULL;
+ return nullptr;
}
-dw_frame_t Process::find_function(remote_ptr<void> ip) const
+simgrid::mc::Frame* Process::find_function(remote_ptr<void> ip) const
{
- mc_object_info_t info = this->find_object_info_exec(ip);
- if (info == NULL)
- return NULL;
- else
- return MC_file_object_info_find_function(info, (void*) ip.address());
+ std::shared_ptr<simgrid::mc::ObjectInformation> info = this->find_object_info_exec(ip);
+ return info ? info->find_function((void*) ip.address()) : nullptr;
}
/** Find (one occurence of) the named variable definition
*/
-dw_variable_t Process::find_variable(const char* name) const
+simgrid::mc::Variable* Process::find_variable(const char* name) const
{
- const size_t n = this->object_infos_size;
- size_t i;
-
// First lookup the variable in the executable shared object.
// A global variable used directly by the executable code from a library
// is reinstanciated in the executable memory .data/.bss.
// We need to look up the variable in the execvutable first.
if (this->binary_info) {
- mc_object_info_t info = this->binary_info;
- dw_variable_t var = MC_file_object_info_find_variable_by_name(info, name);
+ std::shared_ptr<simgrid::mc::ObjectInformation> const& info = this->binary_info;
+ simgrid::mc::Variable* var = info->find_variable(name);
if (var)
return var;
}
- for (i=0; i!=n; ++i) {
- mc_object_info_t info = this->object_infos[i];
- dw_variable_t var = MC_file_object_info_find_variable_by_name(info, name);
+ for (std::shared_ptr<simgrid::mc::ObjectInformation> const& info : this->object_infos) {
+ simgrid::mc::Variable* var = info->find_variable(name);
if (var)
return var;
}
void Process::read_variable(const char* name, void* target, size_t size) const
{
- dw_variable_t var = this->find_variable(name);
+ simgrid::mc::Variable* var = this->find_variable(name);
if (!var->address)
xbt_die("No simple location for this variable");
if (!var->type->full_type)
if (!address)
return NULL;
if (this->is_self())
- return strdup((char*) address.address());
+ return xbt_strdup((char*) address.address());
off_t len = 128;
char* res = (char*) malloc(len);
AddressSpace::ReadMode mode) const
{
if (process_index != simgrid::mc::ProcessIndexDisabled) {
- mc_object_info_t info = this->find_object_info_rw((void*)address.address());
+ std::shared_ptr<simgrid::mc::ObjectInformation> const& info =
+ this->find_object_info_rw((void*)address.address());
// Segment overlap is not handled.
- if (MC_object_info_is_privatized(info)) {
+ if (info.get() && info.get()->privatized()) {
if (process_index < 0)
xbt_die("Missing process index");
+ if (process_index >= (int) MC_smpi_process_count())
+ xbt_die("Invalid process index");
+
+ // Read smpi_privatisation_regions from MCed:
+ smpi_privatisation_region_t remote_smpi_privatisation_regions =
+ mc_model_checker->process().read_variable<smpi_privatisation_region_t>(
+ "smpi_privatisation_regions");
+
+ s_smpi_privatisation_region_t privatisation_region =
+ mc_model_checker->process().read<s_smpi_privatisation_region_t>(
+ remote(remote_smpi_privatisation_regions + process_index));
+
// Address translation in the privaization segment:
- // TODO, fix me (broken)
size_t offset = address.address() - (std::uint64_t)info->start_rw;
- address = remote(address.address() - offset);
+ address = remote((char*)privatisation_region.address + offset);
}
}
return buffer;
}
} else {
- if (pread_whole(this->memory_file, buffer, size, (off_t) address.address()) < 0)
- xbt_die("Read from process %lli failed", (long long) this->pid);
+ if (pread_whole(this->memory_file, buffer, size, address.address()) < 0)
+ xbt_die("Read from process %lli failed", (long long) this->pid_);
return buffer;
}
}
memcpy((void*)address.address(), buffer, len);
} else {
if (pwrite_whole(this->memory_file, buffer, len, address.address()) < 0)
- xbt_die("Write to process %lli failed", (long long) this->pid);
+ xbt_die("Write to process %lli failed", (long long) this->pid_);
}
}
}
}
+void Process::ignore_region(std::uint64_t addr, std::size_t size)
+{
+ IgnoredRegion region;
+ region.addr = addr;
+ region.size = size;
+
+ if (ignored_regions_.empty()) {
+ ignored_regions_.push_back(region);
+ return;
+ }
+
+ unsigned int cursor = 0;
+ IgnoredRegion* current_region = nullptr;
+
+ int start = 0;
+ int end = ignored_regions_.size() - 1;
+ while (start <= end) {
+ cursor = (start + end) / 2;
+ current_region = &ignored_regions_[cursor];
+ if (current_region->addr == addr) {
+ if (current_region->size == size)
+ return;
+ else if (current_region->size < size)
+ start = cursor + 1;
+ else
+ end = cursor - 1;
+ } else if (current_region->addr < addr)
+ start = cursor + 1;
+ else
+ end = cursor - 1;
+ }
+
+ std::size_t position;
+ if (current_region->addr == addr) {
+ if (current_region->size < size) {
+ position = cursor + 1;
+ } else {
+ position = cursor;
+ }
+ } else if (current_region->addr < addr) {
+ position = cursor + 1;
+ } else {
+ position = cursor;
+ }
+ ignored_regions_.insert(
+ ignored_regions_.begin() + position, region);
+}
+
}
}