patches/linux/2.4.26/140-linux-2.4.26-arm-nonofpu.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Feb 17 22:12:59 2008 +0000 (2008-02-17)
changeset 433 9886aa0a9694
permissions -rw-r--r--
Robert P. J. DAY says:

According to Mike Frysinger, this patch was removed from Gentoo in the
2.3.x series and didn't seem to cause any adverse effects. So toss it
from the patch directories for glibc 2.5 and up.
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Backport of linux-2.6.8-arm-nonofpu.patch.
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Fixes error when building linux-2.4.26 kernel with gcc-3.4 on arm.
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/opt/crosstool/arm-unknown-linux-gnu/gcc-3.4.2-glibc-2.2.5/bin/arm-unknown-linux-gnu-gcc -D__KERNEL__ -I/home/dank/wk/crosstool-0.28-rc37/build/arm-unknown-linux-gnu/gcc-3.4.2-glibc-2.2.5/linux-2.4.26/include -Wall -Wstrict-prototypes -Wno-trigraphs -Os -fno-strict-aliasing -fno-common -Uarm -fno-common -pipe -mapcs-32 -D__LINUX_ARM_ARCH__=4 -march=armv4 -mtune=strongarm110 -mshort-load-bytes -msoft-float -Uarm -S -o constants.h.tmp.1 getconstants.c
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cc1: error: invalid option `short-load-bytes'
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make[2]: *** [constants.h] Error 1
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make[2]: Leaving directory `/home/dank/wk/crosstool-0.28-rc37/build/arm-unknown-linux-gnu/gcc-3.4.2-glibc-2.2.5/linux-2.4.26/arch/arm/tools'
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make[1]: *** [dep] Error 2
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make[1]: Leaving directory `/home/dank/wk/crosstool-0.28-rc37/build/arm-unknown-linux-gnu/gcc-3.4.2-glibc-2.2.5/linux-2.4.26/arch/arm/tools'
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make: *** [archdep] Error 2
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--- linux-2.4.26/Makefile.old	Thu Sep 30 23:21:14 2004
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+++ linux-2.4.26/Makefile	Thu Sep 30 23:24:12 2004
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@@ -21,6 +21,10 @@
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 CROSS_COMPILE 	=
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+# From linux-2.6
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+check_gcc = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
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+export check_gcc
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+
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 #
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 # Include the make variables (CC, etc...)
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 #
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--- linux-2.4.26/arch/arm/Makefile.old	Thu Sep 30 23:16:49 2004
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+++ linux-2.4.26/arch/arm/Makefile	Thu Sep 30 23:25:27 2004
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@@ -50,9 +50,9 @@
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 tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110
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 tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
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-CFLAGS_BOOT	:=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Uarm
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-CFLAGS		+=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Uarm
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-AFLAGS		+=$(apcs-y) $(arch-y) -mno-fpu -msoft-float
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+CFLAGS_BOOT	:=$(apcs-y) $(arch-y) $(tune-y) $(call check_gcc,-malignment-traps,-mshort-load-bytes) -msoft-float -Uarm
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+CFLAGS		+=$(apcs-y) $(arch-y) $(tune-y) $(call check_gcc,-malignment-traps,-mshort-load-bytes) -msoft-float -Uarm
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+AFLAGS		+=$(apcs-y) $(arch-y) -msoft-float
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 ifeq ($(CONFIG_CPU_26),y)
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 PROCESSOR	:= armo