1 /*
2 * Copyright (C) 2018-2022 Intel Corporation.
3 * SPDX-License-Identifier: BSD-3-Clause
4 */
5
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include <errno.h>
10 #include <unistd.h>
11 #include "crash_dump.h"
12 #include "log_sys.h"
13 #include "version.h"
14
15 /**
16 * Debugger can work without server when uses "debugger pid" commands to
17 * debug the running process. This function will dump the process info on the
18 * screen, also you can relocate the info to a file.
19 */
print_usage(void)20 static void print_usage(void)
21 {
22 printf("debugger - tool to dump process info of a running process.\n");
23 printf("[Usage]\n");
24 printf("\t--shell cmd, debugger <pid> (root role to run)\n");
25 printf("[Option]\n");
26 printf("\t-h: print this usage message\n");
27 printf("\t-v: print debugger version\n");
28 }
29
main(int argc,char * argv[])30 int main(int argc, char *argv[])
31 {
32 int pid;
33
34 if (argc > 1) {
35 if (strcmp(argv[1], "-v") == 0) {
36 printf("version is %d.%d-%s, build by %s@%s\n",
37 UC_MAJOR_VERSION, UC_MINOR_VERSION,
38 UC_BUILD_VERSION, UC_BUILD_USER,
39 UC_BUILD_TIME);
40 return 0;
41 }
42 if (strcmp(argv[1], "-h") == 0) {
43 print_usage();
44 return 0;
45 }
46 } else
47 print_usage();
48
49 if (getuid() != 0) {
50 printf("failed to execute debugger, root is required\n");
51 exit(EXIT_FAILURE);
52 }
53
54 if (argc == 2) {
55 /* it's from shell cmd */
56 pid = (int)strtol(argv[1], NULL, 10);
57 crash_dump(pid, 0, STDOUT_FILENO);
58 } else {
59 print_usage();
60 return 0;
61 }
62
63 return 0;
64 }
65