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| author |  Jann Horn <jannh@google.com>
| 2020-04-25 05:03:04 -0500 |
|---|---|---|
| committer |  Ingo Molnar <mingo@kernel.org>
| 2020-04-25 12:22:28 +0200 |
| commit | f977df7b7ca45a4ac4b66d30a8931d0434c394b1 (patch) | |
| tree | 2391cc8b70fdc672768c6af8cd75c868b87c8937 /arch/x86/kernel/unwind_orc.c | |
| parent | x86/entry/64: Fix unwind hints in __switch_to_asm() (diff) | |
| download | linux-f977df7b7ca45a4ac4b66d30a8931d0434c394b1.tar.gz linux-f977df7b7ca45a4ac4b66d30a8931d0434c394b1.tar.bz2 linux-f977df7b7ca45a4ac4b66d30a8931d0434c394b1.zip | |
x86/entry/64: Fix unwind hints in rewind_stack_do_exit()
The LEAQ instruction in rewind_stack_do_exit() moves the stack pointer
directly below the pt_regs at the top of the task stack before calling
do_exit(). Tell the unwinder to expect pt_regs.
Fixes: 8c1f75587a18 ("x86/entry/64: Add unwind hint annotations")
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Jones <dsj@fb.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: https://lore.kernel.org/r/68c33e17ae5963854916a46f522624f8e1d264f2.1587808742.git.jpoimboe@redhat.com
Diffstat (limited to 'arch/x86/kernel/unwind_orc.c')
0 files changed, 0 insertions, 0 deletions