acrn-hypervisor/misc/debug_tools/acrn_crashlog/usercrash/debugger.c

65 lines
1.4 KiB
C

/*
* Copyright (C) 2018-2022 Intel Corporation.
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "crash_dump.h"
#include "log_sys.h"
#include "version.h"
/**
* Debugger can work without server when uses "debugger pid" commands to
* debug the running process. This function will dump the process info on the
* screen, also you can relocate the info to a file.
*/
static void print_usage(void)
{
printf("debugger - tool to dump process info of a running process.\n");
printf("[Usage]\n");
printf("\t--shell cmd, debugger <pid> (root role to run)\n");
printf("[Option]\n");
printf("\t-h: print this usage message\n");
printf("\t-v: print debugger version\n");
}
int main(int argc, char *argv[])
{
int pid;
if (argc > 1) {
if (strcmp(argv[1], "-v") == 0) {
printf("version is %d.%d-%s, build by %s@%s\n",
UC_MAJOR_VERSION, UC_MINOR_VERSION,
UC_BUILD_VERSION, UC_BUILD_USER,
UC_BUILD_TIME);
return 0;
}
if (strcmp(argv[1], "-h") == 0) {
print_usage();
return 0;
}
} else
print_usage();
if (getuid() != 0) {
printf("failed to execute debugger, root is required\n");
exit(EXIT_FAILURE);
}
if (argc == 2) {
/* it's from shell cmd */
pid = (int)strtol(argv[1], NULL, 10);
crash_dump(pid, 0, STDOUT_FILENO);
} else {
print_usage();
return 0;
}
return 0;
}