Thomas Meyer schrieb:
Hello.
I try to build a cross compiler for this target: arm-uclinux-uclibc:
First the build fails because of a wrong config entry in config.gcc:
This should fix this:
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 033cc3d..378a92d 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -691,7 +691,7 @@ arm*-*-linux*) # ARM GNU/Linux with ELF
tm_file="$tm_file arm/aout.h arm/arm.h"
;;
arm*-*-uclinux*) # ARM ucLinux
- tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h
arm/arm.h arm/linux-gas.h arm/linux-elf.h arm/uclinux-elf.h"
+ tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h
arm/arm.h arm/linux-gas.h arm/uclinux-elf.h"
tmake_file="arm/t-arm arm/t-arm-elf"
;;
arm*-*-ecos-elf)
Compile continues here but then i get this error likley while
building libgcc2 (clear_cache):
/home/thomas/source/buildgcc/./gcc/xgcc
-B/home/thomas/source/buildgcc/./gcc/ -B/usr/arm-uclinux-uclibc/bin/
-B/usr/arm-uclinux-uclibc/lib/ -isystem
/usr/arm-uclinux-uclibc/include -isystem
/usr/arm-uclinux-uclibc/sys-include -O2 -g -Os -DIN_GCC
-DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -isystem ./include
-Dinhibit_libc -fno-inline -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
-Dinhibit_libc -I. -I. -I../../gcc-4.1.1/gcc -I../../gcc-4.1.1/gcc/.
-I../../gcc-4.1.1/gcc/../include
-I../../gcc-4.1.1/gcc/../libcpp/include -mthumb -DL_clear_cache -c
../../gcc-4.1.1/gcc/libgcc2.c -o libgcc/thumb/_clear_cache.o
In file included from ./tm.h:13,
from ../../gcc-4.1.1/gcc/libgcc2.c:35:
../../gcc-4.1.1/gcc/config/arm/uclinux-elf.h:68:1: warning:
"LINK_GCC_C_SEQUENCE_SPEC" redefined
In file included from ./tm.h:8,
from ../../gcc-4.1.1/gcc/libgcc2.c:35:
../../gcc-4.1.1/gcc/config/arm/unknown-elf.h:97:1: warning: this is
the location of the previous definition
/tmp/ccnrn9Ag.s: Assembler messages:
/tmp/ccnrn9Ag.s:26: Error: invalid swi expression
/tmp/ccnrn9Ag.s:26: Error: value of 00000000009f0002 too large for
field of 2 bytes at 0000000000000002
make[3]: *** [libgcc/thumb/_clear_cache.o] Fehler 1
make[3]: Leaving directory `/home/thomas/source/buildgcc/gcc'
make[2]: *** [stmp-multilib] Fehler 2
make[2]: Leaving directory `/home/thomas/source/buildgcc/gcc'
make[1]: *** [all-gcc] Fehler 2
make[1]: Leaving directory `/home/thomas/source/buildgcc'
make: *** [all] Fehler 2
Any ideas?
Here is the created assembler code:
.code 16
.file "libgcc2.c"
.section .debug_abbrev,"",%progbits
.Ldebug_abbrev0:
.section .debug_info,"",%progbits
.Ldebug_info0:
.section .debug_line,"",%progbits
.Ldebug_line0:
.text
.Ltext0:
.align 2
.global __clear_cache
.code 16
.thumb_func
.type __clear_cache, %function
__clear_cache:
.LFB2:
.file 1 "../../gcc-4.1.1/gcc/libgcc2.c"
.loc 1 1814 0
.LVL0:
@ lr needed for prologue
.LBB2:
.loc 1 1816 0
mov r2, #0
.LVL1:
swi 0x9f0002 @ sys_cacheflush
.code 16
.LBE2:
.loc 1 1818 0
@ sp needed for prologue
bx lr
Rhe swi call seems to be ok for linux. I'm not sure why the xgcc
doesn't seem to like this instruction.