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| author |   Peter Zijlstra <peterz@infradead.org> | 2019-02-25 11:10:55 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2019-04-03 11:02:24 +0200 |
| commit | 2f0f9e9ad7b3459c5c54ef2c03145a98e65dd158 (patch) | |
| tree | 6ce2229a931e53504851d1e98b6319630ff952c7 /tools/objtool/check.h | |
| parent | objtool: Add UACCESS validation (diff) | |
| download | linux-dev-2f0f9e9ad7b3459c5c54ef2c03145a98e65dd158.tar.xz linux-dev-2f0f9e9ad7b3459c5c54ef2c03145a98e65dd158.zip | |
objtool: Add Direction Flag validation
Having DF escape is BAD(tm).
Linus; you suggested this one, but since DF really is only used from
ASM and the failure case is fairly obvious, do we really need this?
OTOH the patch is fairly small and simple, so let's just do this
to demonstrate objtool's superior awesomeness.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | tools/objtool/check.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/objtool/check.h b/tools/objtool/check.h index 78a95d06c165..71e54f97dbcd 100644 --- a/tools/objtool/check.h +++ b/tools/objtool/check.h @@ -31,7 +31,7 @@ struct insn_state { int stack_size; unsigned char type; bool bp_scratch; - bool drap, end, uaccess; + bool drap, end, uaccess, df; unsigned int uaccess_stack; int drap_reg, drap_offset; struct cfi_reg vals[CFI_NUM_REGS]; |