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| author | Peter Zijlstra <peterz@infradead.org> | 2021-02-26 12:59:59 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-03-06 14:44:23 +0300 |
| commit | 8ad15c6900840e8a2163012f4581c52127622e02 (patch) | |
| tree | c582ed54815d968a506db6f366509dab2ac068df /tools/objtool/builtin-check.c | |
| parent | 36d92e43d01cbeeec99abdf405362243051d6b3f (diff) | |
| download | linux-8ad15c6900840e8a2163012f4581c52127622e02.tar.xz | |
objtool: Add --backup
Teach objtool to write backups files, such that it becomes easier to
see what objtool did to the object file.
Backup files will be ${name}.orig.
Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/YD4obT3aoXPWl7Ax@hirez.programming.kicks-ass.net
Diffstat (limited to 'tools/objtool/builtin-check.c')
| -rw-r--r-- | tools/objtool/builtin-check.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c index c3a85d8f6c5c..97f063d55b9f 100644 --- a/tools/objtool/builtin-check.c +++ b/tools/objtool/builtin-check.c @@ -18,7 +18,8 @@ #include <objtool/builtin.h> #include <objtool/objtool.h> -bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats, validate_dup, vmlinux, mcount, noinstr; +bool no_fp, no_unreachable, retpoline, module, backtrace, uaccess, stats, + validate_dup, vmlinux, mcount, noinstr, backup; static const char * const check_usage[] = { "objtool check [<options>] file.o", @@ -37,6 +38,7 @@ const struct option check_options[] = { OPT_BOOLEAN('n', "noinstr", &noinstr, "noinstr validation for vmlinux.o"), OPT_BOOLEAN('l', "vmlinux", &vmlinux, "vmlinux.o validation"), OPT_BOOLEAN('M', "mcount", &mcount, "generate __mcount_loc"), + OPT_BOOLEAN('B', "backup", &backup, "create .orig files before modification"), OPT_END(), }; |