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73 lines
1.3 KiB
73 lines
1.3 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (C) 2017 Josh Poimboeuf <[email protected]> |
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*/ |
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/* |
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* objtool orc: |
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* |
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* This command analyzes a .o file and adds .orc_unwind and .orc_unwind_ip |
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* sections to it, which is used by the in-kernel ORC unwinder. |
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* |
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* This command is a superset of "objtool check". |
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*/ |
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#include <string.h> |
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#include <objtool/builtin.h> |
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#include <objtool/objtool.h> |
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static const char *orc_usage[] = { |
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"objtool orc generate [<options>] file.o", |
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"objtool orc dump file.o", |
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NULL, |
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}; |
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int cmd_orc(int argc, const char **argv) |
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{ |
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const char *objname; |
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argc--; argv++; |
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if (argc <= 0) |
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usage_with_options(orc_usage, check_options); |
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if (!strncmp(argv[0], "gen", 3)) { |
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struct objtool_file *file; |
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int ret; |
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argc = cmd_parse_options(argc, argv, orc_usage); |
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objname = argv[0]; |
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file = objtool_open_read(objname); |
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if (!file) |
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return 1; |
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ret = check(file); |
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if (ret) |
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return ret; |
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if (list_empty(&file->insn_list)) |
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return 0; |
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ret = orc_create(file); |
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if (ret) |
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return ret; |
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if (!file->elf->changed) |
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return 0; |
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return elf_write(file->elf); |
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} |
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if (!strcmp(argv[0], "dump")) { |
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if (argc != 2) |
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usage_with_options(orc_usage, check_options); |
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objname = argv[1]; |
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return orc_dump(objname); |
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} |
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usage_with_options(orc_usage, check_options); |
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return 0; |
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}
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