1ccea77e2a
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
123 lines
2.4 KiB
C
123 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
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*/
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/*
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* objtool:
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*
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* The 'check' subcmd analyzes every .o file and ensures the validity of its
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* stack trace metadata. It enforces a set of rules on asm code and C inline
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* assembly code so that stack traces can be reliable.
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*
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* For more information, see tools/objtool/Documentation/stack-validation.txt.
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*/
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#include <stdio.h>
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#include <stdbool.h>
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#include <string.h>
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#include <stdlib.h>
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#include <subcmd/exec-cmd.h>
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#include <subcmd/pager.h>
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#include <linux/kernel.h>
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#include "builtin.h"
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struct cmd_struct {
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const char *name;
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int (*fn)(int, const char **);
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const char *help;
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};
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static const char objtool_usage_string[] =
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"objtool COMMAND [ARGS]";
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static struct cmd_struct objtool_cmds[] = {
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{"check", cmd_check, "Perform stack metadata validation on an object file" },
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{"orc", cmd_orc, "Generate in-place ORC unwind tables for an object file" },
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};
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bool help;
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static void cmd_usage(void)
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{
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unsigned int i, longest = 0;
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printf("\n usage: %s\n\n", objtool_usage_string);
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for (i = 0; i < ARRAY_SIZE(objtool_cmds); i++) {
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if (longest < strlen(objtool_cmds[i].name))
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longest = strlen(objtool_cmds[i].name);
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}
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puts(" Commands:");
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for (i = 0; i < ARRAY_SIZE(objtool_cmds); i++) {
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printf(" %-*s ", longest, objtool_cmds[i].name);
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puts(objtool_cmds[i].help);
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}
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printf("\n");
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exit(129);
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}
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static void handle_options(int *argc, const char ***argv)
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{
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while (*argc > 0) {
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const char *cmd = (*argv)[0];
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if (cmd[0] != '-')
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break;
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if (!strcmp(cmd, "--help") || !strcmp(cmd, "-h")) {
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help = true;
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break;
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} else {
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fprintf(stderr, "Unknown option: %s\n", cmd);
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cmd_usage();
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}
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(*argv)++;
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(*argc)--;
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}
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}
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static void handle_internal_command(int argc, const char **argv)
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{
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const char *cmd = argv[0];
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unsigned int i, ret;
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for (i = 0; i < ARRAY_SIZE(objtool_cmds); i++) {
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struct cmd_struct *p = objtool_cmds+i;
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if (strcmp(p->name, cmd))
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continue;
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ret = p->fn(argc, argv);
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exit(ret);
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}
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cmd_usage();
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}
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int main(int argc, const char **argv)
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{
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static const char *UNUSED = "OBJTOOL_NOT_IMPLEMENTED";
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/* libsubcmd init */
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exec_cmd_init("objtool", UNUSED, UNUSED, UNUSED);
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pager_init(UNUSED);
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argv++;
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argc--;
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handle_options(&argc, &argv);
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if (!argc || help)
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cmd_usage();
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handle_internal_command(argc, argv);
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return 0;
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}
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