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patches/linux/2.4.26/140-linux-2.4.26-arm-nonofpu.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed May 21 22:00:52 2008 +0000 (2008-05-21)
changeset 527 4ac12179ef23
permissions -rw-r--r--
Introduce target-specific LDFLAGS, the same way we have CFLAGS for the target.
It seems to be helping gcc somewhat into telling the correct endianness to ld that sticks with little endian even when the target is big (eg armeb-unknown-linux-uclibcgnueabi).
There's still work to do, especially finish the gcc part that is not in this commit.

/trunk/scripts/functions | 9 7 2 0 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-) 
     1 Backport of linux-2.6.8-arm-nonofpu.patch.

     2 Fixes error when building linux-2.4.26 kernel with gcc-3.4 on arm.

     3 

     4 /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

     5 cc1: error: invalid option `short-load-bytes'

     6 make[2]: *** [constants.h] Error 1

     7 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'

     8 make[1]: *** [dep] Error 2

     9 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'

    10 make: *** [archdep] Error 2

    11 

    12 

    13 --- linux-2.4.26/Makefile.old	Thu Sep 30 23:21:14 2004

    14 +++ linux-2.4.26/Makefile	Thu Sep 30 23:24:12 2004

    15 @@ -21,6 +21,10 @@

    16  

    17  CROSS_COMPILE 	=

    18  

    19 +# From linux-2.6

    20 +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 ;)

    21 +export check_gcc

    22 +

    23  #

    24  # Include the make variables (CC, etc...)

    25  #

    26 --- linux-2.4.26/arch/arm/Makefile.old	Thu Sep 30 23:16:49 2004

    27 +++ linux-2.4.26/arch/arm/Makefile	Thu Sep 30 23:25:27 2004

    28 @@ -50,9 +50,9 @@

    29  tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110

    30  tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100

    31  

    32 -CFLAGS_BOOT	:=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Uarm

    33 -CFLAGS		+=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Uarm

    34 -AFLAGS		+=$(apcs-y) $(arch-y) -mno-fpu -msoft-float

    35 +CFLAGS_BOOT	:=$(apcs-y) $(arch-y) $(tune-y) $(call check_gcc,-malignment-traps,-mshort-load-bytes) -msoft-float -Uarm

    36 +CFLAGS		+=$(apcs-y) $(arch-y) $(tune-y) $(call check_gcc,-malignment-traps,-mshort-load-bytes) -msoft-float -Uarm

    37 +AFLAGS		+=$(apcs-y) $(arch-y) -msoft-float

    38  

    39  ifeq ($(CONFIG_CPU_26),y)

    40  PROCESSOR	:= armo
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