1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <getopt.h>
18 #include <inttypes.h>
19 #include <signal.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <sys/mman.h>
23 #include <sys/types.h>
24 #include <unistd.h>
25
26 #include <iomanip>
27 #include <iostream>
28 #include <map>
29 #include <memory>
30 #include <string>
31
32 #include <android-base/stringprintf.h>
33 #include <android-base/strings.h>
34 #include <meminfo/procmeminfo.h>
35
36 #include <processrecord.h>
37 #include <smapinfo.h>
38
39 using ::android::meminfo::Format;
40 using ::android::meminfo::GetFormat;
41
usage(int exit_status)42 [[noreturn]] static void usage(int exit_status) {
43 std::cerr << "showmap [-aqtv] [-f FILE] PID\n"
44 << "-a\taddresses (show virtual memory map)\n"
45 << "-q\tquiet (don't show error if map could not be read)\n"
46 << "-t\tterse (show only items with private pages)\n"
47 << "-v\tverbose (don't coalesce maps with the same name)\n"
48 << "-f\tFILE (read from input from FILE instead of PID)\n"
49 << "-o\t[raw][json][csv] Print output in the specified format.\n"
50 << " \tDefault output format is raw text. All memory in KB.)\n";
51
52 exit(exit_status);
53 }
54
main(int argc,char * argv[])55 int main(int argc, char* argv[]) {
56 signal(SIGPIPE, SIG_IGN);
57 struct option longopts[] = {
58 {"help", no_argument, nullptr, 'h'},
59 {0, 0, nullptr, 0},
60 };
61
62 // Printing options.
63 bool terse = false;
64 bool quiet = false;
65
66 // Output options.
67 bool show_addr = false;
68 bool verbose = false;
69 Format format = Format::RAW;
70
71 // 'pid' will be ignored if a file is specified.
72 std::string filename;
73 pid_t pid = 0;
74
75 int opt;
76 while ((opt = getopt_long(argc, argv, "tvaqf:o:h", longopts, nullptr)) != -1) {
77 switch (opt) {
78 case 't':
79 terse = true;
80 break;
81 case 'a':
82 show_addr = true;
83 break;
84 case 'v':
85 verbose = true;
86 break;
87 case 'q':
88 quiet = true;
89 break;
90 case 'f':
91 filename = optarg;
92 break;
93 case 'o':
94 format = GetFormat(optarg);
95 if (format == Format::INVALID) {
96 std::cerr << "Invalid format.\n";
97 usage(EXIT_FAILURE);
98 }
99 break;
100 case 'h':
101 usage(EXIT_SUCCESS);
102 default:
103 usage(EXIT_FAILURE);
104 }
105 }
106
107 if (filename.empty()) {
108 if ((argc - 1) < optind) {
109 std::cerr << "Invalid arguments: Must provide <pid> at the end\n";
110 usage(EXIT_FAILURE);
111 }
112
113 pid = atoi(argv[optind]);
114 if (pid <= 0) {
115 std::cerr << "Invalid process id " << argv[optind] << "\n";
116 usage(EXIT_FAILURE);
117 }
118 // run_showmap will read directly from this file and ignore the pid argument.
119 filename = ::android::base::StringPrintf("/proc/%d/smaps", pid);
120 }
121
122 bool success = ::android::smapinfo::run_showmap(pid, filename, terse, verbose, show_addr, quiet,
123 format, nullptr, std::cout, std::cerr);
124 if (!success) {
125 exit(EXIT_FAILURE);
126 }
127 return 0;
128 }
129