Messages in this thread |  | | From | Keith Owens <> | Subject | Re: PATCH 2.4.14 mregparm=3 compilation fixes | Date | Tue, 13 Nov 2001 03:10:02 +1100 |
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On Mon, 12 Nov 2001 12:28:33 +0100, Martin Dalecki <dalecki@evision-ventures.com> wrote: >diff -ur linux-2.4.14-2/arch/i386/Makefile linux-mdcki/arch/i386/Makefile >--- linux-2.4.14-2/arch/i386/Makefile Thu Apr 12 21:20:31 2001 >+++ linux-mdcki/arch/i386/Makefile Sat Nov 10 00:07:17 2001 >@@ -21,7 +21,7 @@ > LDFLAGS=-e stext > LINKFLAGS =-T $(TOPDIR)/arch/i386/vmlinux.lds $(LDFLAGS) > >-CFLAGS += -pipe >+CFLAGS += -freg-struct-return -mregparm=3 > > # prevent gcc from keeping the stack 16 byte aligned > CFLAGS += $(shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi)
Setting mregparm must be a CONFIG_ option, with a huge warning that
A) Changing CONFIG_MREGPARM requires make mrproper.
B) Loading binary only modules into a kernel compiled with mregparm is even more likely to destroy your kernel.
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