Blame view
tools/objtool/objtool.c
2.37 KB
1ccea77e2 treewide: Replace... |
1 |
// SPDX-License-Identifier: GPL-2.0-or-later |
442f04c34 objtool: Add tool... |
2 3 |
/* * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com> |
442f04c34 objtool: Add tool... |
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
*/ /* * objtool: * * The 'check' subcmd analyzes every .o file and ensures the validity of its * stack trace metadata. It enforces a set of rules on asm code and C inline * assembly code so that stack traces can be reliable. * * For more information, see tools/objtool/Documentation/stack-validation.txt. */ #include <stdio.h> #include <stdbool.h> #include <string.h> #include <stdlib.h> #include <subcmd/exec-cmd.h> #include <subcmd/pager.h> |
006145974 objtool: Drop ARR... |
22 |
#include <linux/kernel.h> |
442f04c34 objtool: Add tool... |
23 24 |
#include "builtin.h" |
442f04c34 objtool: Add tool... |
25 26 27 28 29 30 31 |
struct cmd_struct { const char *name; int (*fn)(int, const char **); const char *help; }; static const char objtool_usage_string[] = |
627fce148 objtool: Add ORC ... |
32 |
"objtool COMMAND [ARGS]"; |
442f04c34 objtool: Add tool... |
33 34 35 |
static struct cmd_struct objtool_cmds[] = { {"check", cmd_check, "Perform stack metadata validation on an object file" }, |
627fce148 objtool: Add ORC ... |
36 |
{"orc", cmd_orc, "Generate in-place ORC unwind tables for an object file" }, |
442f04c34 objtool: Add tool... |
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 |
}; bool help; static void cmd_usage(void) { unsigned int i, longest = 0; printf(" usage: %s ", objtool_usage_string); for (i = 0; i < ARRAY_SIZE(objtool_cmds); i++) { if (longest < strlen(objtool_cmds[i].name)) longest = strlen(objtool_cmds[i].name); } puts(" Commands:"); for (i = 0; i < ARRAY_SIZE(objtool_cmds); i++) { printf(" %-*s ", longest, objtool_cmds[i].name); puts(objtool_cmds[i].help); } printf(" "); |
6a93bb7e4 objtool: Print to... |
63 |
exit(129); |
442f04c34 objtool: Add tool... |
64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 |
} static void handle_options(int *argc, const char ***argv) { while (*argc > 0) { const char *cmd = (*argv)[0]; if (cmd[0] != '-') break; if (!strcmp(cmd, "--help") || !strcmp(cmd, "-h")) { help = true; break; } else { fprintf(stderr, "Unknown option: %s ", cmd); |
6a93bb7e4 objtool: Print to... |
80 |
cmd_usage(); |
442f04c34 objtool: Add tool... |
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 |
} (*argv)++; (*argc)--; } } static void handle_internal_command(int argc, const char **argv) { const char *cmd = argv[0]; unsigned int i, ret; for (i = 0; i < ARRAY_SIZE(objtool_cmds); i++) { struct cmd_struct *p = objtool_cmds+i; if (strcmp(p->name, cmd)) continue; ret = p->fn(argc, argv); exit(ret); } cmd_usage(); } int main(int argc, const char **argv) { static const char *UNUSED = "OBJTOOL_NOT_IMPLEMENTED"; /* libsubcmd init */ exec_cmd_init("objtool", UNUSED, UNUSED, UNUSED); pager_init(UNUSED); argv++; argc--; handle_options(&argc, &argv); if (!argc || help) cmd_usage(); handle_internal_command(argc, argv); return 0; } |