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/*
* Copyright (C) 2019 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.
*/
#include <getopt.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <memory>
#include <string>
#include <vector>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <meminfo/procmeminfo.h>
using ::android::meminfo::Vma;
struct VmaInfo {
Vma vma;
bool is_bss;
uint32_t count;
VmaInfo() = default;
VmaInfo(const Vma& v) : vma(v), is_bss(false), count(1) {}
VmaInfo(const Vma& v, bool bss) : vma(v), is_bss(bss), count(1) {}
VmaInfo(const Vma& v, const std::string& name, bool bss) : vma(v), is_bss(bss), count(1) {
vma.name = name;
}
};
// Global options
static std::string g_filename = "";
static bool g_merge_by_names = false;
static bool g_terse = false;
static bool g_verbose = false;
static bool g_show_addr = false;
static bool g_quiet = false;
static pid_t g_pid = -1;
static VmaInfo g_total;
static std::vector<VmaInfo> g_vmas;
[[noreturn]] static void usage(int exit_status) {
fprintf(stderr,
"%s [-aqtv] [-f FILE] PID\n"
"-a\taddresses (show virtual memory map)\n"
"-q\tquiet (don't show error if map could not be read)\n"
"-t\tterse (show only items with private pages)\n"
"-v\tverbose (don't coalesce maps with the same name)\n"
"-f\tFILE (read from input from FILE instead of PID)\n",
getprogname());
exit(exit_status);
}
static bool is_library(const std::string& name) {
return (name.size() > 4) && (name[0] == '/') && ::android::base::EndsWith(name, ".so");
}
static bool insert_before(const VmaInfo& a, const VmaInfo& b) {
if (g_show_addr) {
return (a.vma.start < b.vma.start || (a.vma.start == b.vma.start && a.vma.end < b.vma.end));
}
return strcmp(a.vma.name.c_str(), b.vma.name.c_str()) < 0;
}
static void collect_vma(const Vma& vma) {
if (g_vmas.empty()) {
g_vmas.emplace_back(vma);
return;
}
VmaInfo current(vma);
VmaInfo& last = g_vmas.back();
// determine if this is bss;
if (vma.name.empty()) {
if (last.vma.end == current.vma.start && is_library(last.vma.name)) {
current.vma.name = last.vma.name;
current.is_bss = true;
} else {
current.vma.name = "[anon]";
}
}
std::vector<VmaInfo>::iterator it;
for (it = g_vmas.begin(); it != g_vmas.end(); it++) {
if (g_merge_by_names && (it->vma.name == current.vma.name)) {
it->vma.usage.vss += current.vma.usage.vss;
it->vma.usage.rss += current.vma.usage.rss;
it->vma.usage.pss += current.vma.usage.pss;
it->vma.usage.shared_clean += current.vma.usage.shared_clean;
it->vma.usage.shared_dirty += current.vma.usage.shared_dirty;
it->vma.usage.private_clean += current.vma.usage.private_clean;
it->vma.usage.private_dirty += current.vma.usage.private_dirty;
it->vma.usage.swap += current.vma.usage.swap;
it->vma.usage.swap_pss += current.vma.usage.swap_pss;
it->is_bss &= current.is_bss;
it->count++;
break;
}
if (insert_before(current, *it)) {
g_vmas.insert(it, current);
break;
}
}
if (it == g_vmas.end()) {
g_vmas.emplace_back(current);
}
}
static void print_header() {
const char* addr1 = g_show_addr ? " start end " : "";
const char* addr2 = g_show_addr ? " addr addr " : "";
printf("%s virtual shared shared private private\n", addr1);
printf("%s size RSS PSS clean dirty clean dirty swap swapPSS",
addr2);
if (!g_verbose && !g_show_addr) {
printf(" # ");
}
printf(" object\n");
}
static void print_divider() {
if (g_show_addr) {
printf("-------- -------- ");
}
printf("-------- -------- -------- -------- -------- -------- -------- -------- -------- ");
if (!g_verbose && !g_show_addr) {
printf("---- ");
}
printf("------------------------------\n");
}
static void print_vmainfo(const VmaInfo& v, bool total) {
if (g_show_addr) {
if (total) {
printf(" ");
} else {
printf("%16" PRIx64 " %16" PRIx64 " ", v.vma.start, v.vma.end);
}
}
printf("%8" PRIu64 " %8" PRIu64 " %8" PRIu64 " %8" PRIu64 " %8" PRIu64 " %8" PRIu64 " %8" PRIu64
" %8" PRIu64 " %8" PRIu64 " ",
v.vma.usage.vss, v.vma.usage.rss, v.vma.usage.pss, v.vma.usage.shared_clean,
v.vma.usage.shared_dirty, v.vma.usage.private_clean, v.vma.usage.private_dirty,
v.vma.usage.swap, v.vma.usage.swap_pss);
if (!g_verbose && !g_show_addr) {
printf("%4" PRIu32 " ", v.count);
}
}
static int showmap(void) {
if (!::android::meminfo::ForEachVmaFromFile(g_filename, collect_vma)) {
if (!g_quiet) {
fprintf(stderr, "Failed to parse file %s\n", g_filename.c_str());
}
return 1;
}
print_header();
print_divider();
for (const auto& v : g_vmas) {
g_total.vma.usage.vss += v.vma.usage.vss;
g_total.vma.usage.rss += v.vma.usage.rss;
g_total.vma.usage.pss += v.vma.usage.pss;
g_total.vma.usage.private_clean += v.vma.usage.private_clean;
g_total.vma.usage.private_dirty += v.vma.usage.private_dirty;
g_total.vma.usage.shared_clean += v.vma.usage.shared_clean;
g_total.vma.usage.shared_dirty += v.vma.usage.shared_dirty;
g_total.vma.usage.swap += v.vma.usage.swap;
g_total.vma.usage.swap_pss += v.vma.usage.swap_pss;
g_total.count += v.count;
if (g_terse && !(v.vma.usage.private_dirty || v.vma.usage.private_clean)) {
continue;
}
print_vmainfo(v, false);
printf("%s%s\n", v.vma.name.c_str(), v.is_bss ? " [bss]" : "");
}
print_divider();
print_header();
print_divider();
print_vmainfo(g_total, true);
printf("TOTAL\n");
return 0;
}
int main(int argc, char* argv[]) {
signal(SIGPIPE, SIG_IGN);
struct option longopts[] = {
{"help", no_argument, nullptr, 'h'},
{0, 0, nullptr, 0},
};
int opt;
while ((opt = getopt_long(argc, argv, "tvaqf:h", longopts, nullptr)) != -1) {
switch (opt) {
case 't':
g_terse = true;
break;
case 'a':
g_show_addr = true;
break;
case 'v':
g_verbose = true;
break;
case 'q':
g_quiet = true;
break;
case 'f':
g_filename = optarg;
break;
case 'h':
usage(EXIT_SUCCESS);
default:
usage(EXIT_FAILURE);
}
}
if (g_filename.empty()) {
if ((argc - 1) < optind) {
fprintf(stderr, "Invalid arguments: Must provide <pid> at the end\n");
usage(EXIT_FAILURE);
}
g_pid = atoi(argv[optind]);
if (g_pid <= 0) {
fprintf(stderr, "Invalid process id %s\n", argv[optind]);
usage(EXIT_FAILURE);
}
g_filename = ::android::base::StringPrintf("/proc/%d/smaps", g_pid);
}
g_merge_by_names = !g_verbose && !g_show_addr;
return showmap();
}