x86: set bp field in pt_regs properly

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Save rbp twice: One is for marking the stack frame, as usual (already
there), and the other, to fill pt_regs properly. This is because bx
comes right before the last saved register in that structure, and not
bp. If the base pointer were in the place bx is today, this would not
be needed.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Glauber Costa 2008-08-14 17:33:12 -03:00 • committed by Ingo Molnar

parent 2c44e66843

commit 097a0788df

1 changed files with 7 additions and 0 deletions

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arch/x86/kernel/entry_64.S

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