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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __TEST_UTILS_H
#define __TEST_UTILS_H
#include <inttypes.h>
#include <sys/mman.h>
#include "private/ScopeGuard.h"
struct map_record {
uintptr_t addr_start;
uintptr_t addr_end;
int perms;
size_t offset;
dev_t device;
ino_t inode;
std::string pathname;
};
class Maps {
public:
static bool parse_maps(std::vector<map_record>* maps) {
char path[64];
snprintf(path, sizeof(path), "/proc/self/task/%d/maps", getpid());
FILE* fp = fopen(path, "re");
if (fp == nullptr) {
return false;
}
auto fp_guard = make_scope_guard([&]() {
fclose(fp);
});
char line[BUFSIZ];
while (fgets(line, sizeof(line), fp) != nullptr) {
map_record record;
uint32_t dev_major, dev_minor;
char pathstr[BUFSIZ];
char prot[5]; // sizeof("rwxp")
if (sscanf(line, "%" SCNxPTR "-%" SCNxPTR " %4s %" SCNxPTR " %x:%x %lu %s",
&record.addr_start, &record.addr_end, prot, &record.offset,
&dev_major, &dev_minor, &record.inode, pathstr) == 8) {
record.perms = 0;
if (prot[0] == 'r') {
record.perms |= PROT_READ;
}
if (prot[1] == 'w') {
record.perms |= PROT_WRITE;
}
if (prot[2] == 'x') {
record.perms |= PROT_EXEC;
}
// TODO: parse shared/private?
record.device = makedev(dev_major, dev_minor);
record.pathname = pathstr;
maps->push_back(record);
}
}
return true;
}
};
#endif
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