Messages in this thread | | | Date | Wed, 10 Jun 2015 20:17:32 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v5 01/10] x86/asm: Add FP_SAVE/RESTORE frame pointer macros |
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On Wed 2015-06-10 07:06:09, Josh Poimboeuf wrote: > Add the FP_SAVE and FP_RESTORE asm macros, which can be used to save and > restore the frame pointer.
Add a changelog, which can be used to tell what changed.
> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> > --- > arch/x86/include/asm/func.h | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > create mode 100644 arch/x86/include/asm/func.h > > diff --git a/arch/x86/include/asm/func.h b/arch/x86/include/asm/func.h > new file mode 100644 > index 0000000..4d62782 > --- /dev/null > +++ b/arch/x86/include/asm/func.h > @@ -0,0 +1,24 @@ > +#ifndef _ASM_X86_FUNC_H > +#define _ASM_X86_FUNC_H > + > +#include <linux/linkage.h> > +#include <asm/asm.h> > + > +/* > + * These are frame pointer save and restore macros. They should be used by > + * every callable non-leaf asm function. > + */ > +.macro FP_SAVE name > + .if CONFIG_FRAME_POINTER > + push %_ASM_BP > + _ASM_MOV %_ASM_SP, %_ASM_BP > + .endif > +.endm
Hmm. This will not compile when included into .c file. Should it have other extension than .h? (Or can the macros be done in different way?
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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