[PATCH 6/6] i386: Remove syscall assembly codes with 6 arguments
Andreas Schwab
schwab@suse.de
Mon Sep 14 14:30:00 GMT 2015
"H.J. Lu" <hjl.tools@gmail.com> writes:
> ifeq ($(subdir),misc)
> sysdep_routines += ioperm iopl vm86
> +# %ebp may be used to pass the 6th argument to syscall.
> +CFLAGS-epoll_pwait.c += -fomit-frame-pointer
> +CFLAGS-mmap.c += -fomit-frame-pointer
> +CFLAGS-mmap64.c += -fomit-frame-pointer
What happens if the compiler didn't succeed in eliminating the frame
pointer?
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
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