Hi Josef,
Wolf, Josef wrote:
Thanks for your answer, Greg!
To solve this, I put CFLAGS += -msoft-float in
vendors/config/armnommu/config.arch. Then the error changes into:
This final link line will need a "-msoft-float" as well.
Otherwise it will try to link against the wrong libgcc.a
Ough... I would not have been asked if it would be _that_ easy ;-)
Well, from your last email:
ucfront-gcc arm-linux-gcc -Wl,-elf2flt -D__PIC__ -fpic
-msingle-pic-base -o boa alias.o auth.o boa.o cgi.o cgi_header.o
config.o get.o hash.o globals.o log.o nls.o pipe.o queue.o read.o
request.o response.o signals.o timestamp.o util.o -lcrypt
And that has no "-msoft-float".
When I put LDFLAGS += -msoft-float in vendors/config/armnommu/config.arch,
arm-linux-ld complains about unsupported emulation mode when it tries to
link the kernel:
Which LDFLAGS in config.arch did you change?
And which uClinux-dist are you using?
The current version (from 20070130) has many LDFLAGS options
that already contain -msoft-float... See
http://cvs.uclinux.org/cgi-bin/cvsweb.cgi/~checkout~/uClinux-dist/vendors/config/armnommu/config.arch?rev=1.1.1.9;content-type=text%2Fplain
Regards
Greg
[ ... ]
arm-linux-gcc -D__KERNEL__
-I/m/l/embedded/uclinux/uClinux-dist-20051014/linux-2.4.32/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common
-fno-common -pipe -fno-builtin -D__linux__ -g -DNO_MM -mapcs-32 -march=armv4
-mtune=arm7tdmi -malignment-traps -msoft-float -DKBUILD_BASENAME=do_mounts
-c -o init/do_mounts.o init/do_mounts.c
In file included from init/do_mounts.c:18:
/m/l/embedded/uclinux/uClinux-dist-20051014/linux-2.4.32/include/linux/cramfs_fs.h:120:2:
warning: #warning "__BYTE_ORDER == __LITTLE_ENDIAN"
make[3]: Entering directory
`/m/l/embedded/uclinux/uClinux-dist-20051014/linux-2.4.32/arch/armnommu/tools'
make[3]: Für das Ziel »all« ist nichts zu tun.
make[3]: Leaving directory
`/m/l/embedded/uclinux/uClinux-dist-20051014/linux-2.4.32/arch/armnommu/tools'
make CFLAGS="-D__KERNEL__
-I/m/l/embedded/uclinux/uClinux-dist-20051014/linux-2.4.32/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fno-common -pipe
-fno-builtin -D__linux__ -g -DNO_MM -mapcs-32 -march=armv4 -mtune=arm7tdmi
-malignment-traps -msoft-float " -C kernel
make[3]: Entering directory
`/m/l/embedded/uclinux/uClinux-dist-20051014/linux-2.4.32/kernel'
make all_targets
make[4]: Entering directory
`/m/l/embedded/uclinux/uClinux-dist-20051014/linux-2.4.32/kernel'
rm -f kernel.o
arm-linux-ld -msoft-float -r -o kernel.o sched.o fork.o exec_domain.o
panic.o printk.o module.o exit.o itimer.o info.o time.o softirq.o resource.o
sysctl.o acct.o capability.o ptrace.o timer.o user.o signal.o sys.o kmod.o
context.o uid16.o ksyms.o
/usr/local/bin/arm-linux-ld.real: unrecognised emulation mode: soft-float
Supported emulations: armelf_linux armelf
[ ... ]
Can you give me a hint where to put the option to cause the final link
to use the proper libgcc?
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Greg Ungerer -- Chief Software Dude EMAIL: [EMAIL PROTECTED]
SnapGear -- a Secure Computing Company PHONE: +61 7 3435 2888
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