I'm trying to compile a tool chain to run on an x86-64 machine, but
produce code for an arm, so options to most things:
--target=armv7-hardfloat-linux-gnueabi --host=x86_64-pc-linux-gnu
--build=x86_64-pc-linux-gnu
Software that I'm compiling is:
gcc-4.7.0
binutils-2.22
uClibc-0.9.33.2
First pass of all compiles fine, as long as threads and shared are
disabled in gcc.
Second pass though fails, and can see the problem with this:
# echo 'main(){}' > dummy.c
# /home/arm/bin/armv7-hardfloat-linux-gnueabi-gcc dummy.c
/home/arm/lib/gcc/armv7-hardfloat-linux-gnueabi/4.7.0/../../../../armv7-hardfloat-linux-gnueabi/bin/ld:
cannot find crt1.o: No such file or directory
/home/arm/lib/gcc/armv7-hardfloat-linux-gnueabi/4.7.0/../../../../armv7-hardfloat-linux-gnueabi/bin/ld:
cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status
#
/home/arm/lib/gcc/armv7-hardfloat-linux-gnueabi/4.7.0/../../../../armv7-hardfloat-linux-gnueabi/bin/ld
--verbose | grep SEARCH
SEARCH_DIR("/home/arm/armv7-hardfloat-linux-gnueabi/lib");
SEARCH_DIR("/home/arm/lib"); SEARCH_DIR("/home/arm/usr/lib");
# ls /home/arm/usr/lib/crt*.o
/home/arm/usr/lib/crt1.o /home/arm/usr/lib/crti.o /home/arm/usr/lib/crtn.o
#/home/arm/bin/armv7-hardfloat-linux-gnueabi-gcc dummy.c
/home/arm/usr/lib/crt1.o /home/arm/usr/lib/crti.o
/home/arm/lib/gcc/armv7-hardfloat-linux-gnueabi/4.7.0/../../../../armv7-hardfloat-linux-gnueabi/bin/ld:
cannot find crt1.o: No such file or directory
/home/arm/lib/gcc/armv7-hardfloat-linux-gnueabi/4.7.0/../../../../armv7-hardfloat-linux-gnueabi/bin/ld:
cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status
# readelf -A -h /home/arm/usr/lib/crti.o
ELF Header:
Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: REL (Relocatable file)
Machine: ARM
Version: 0x1
Entry point address: 0x0
Start of program headers: 0 (bytes into file)
Start of section headers: 256 (bytes into file)
Flags: 0x5000000, Version5 EABI
Size of this header: 52 (bytes)
Size of program headers: 0 (bytes)
Number of program headers: 0
Size of section headers: 40 (bytes)
Number of section headers: 12
Section header string table index: 9
Attribute Section: aeabi
File Attributes
Tag_CPU_name: "7-A"
Tag_CPU_arch: v7
Tag_CPU_arch_profile: Application
Tag_ARM_ISA_use: Yes
Tag_THUMB_ISA_use: Thumb-2
Tag_FP_arch: VFPv3-D16
Tag_DIV_use: Not allowed
So the problem seems to be that the linker isn't working, this was
compiled via:
../binutils-2.22/configure --target=armv7-hardfloat-linux-gnueabi
--host=x86_64-linux-gnu --build=x86_64-linux-gnu --prefix=/home/arm
--with-lib-path=/home/arm/lib:/home/arm/usr/lib --enable-shared
--disable-nls --with-libliberty
Now I've tried compiling both binutils and gcc with --with-sysroot, but
this doesn't help.
Anyone any ideas? Is this a gcc problem, a binutils problem, or a uClibc
problem ? Any ideas how to solve
Thanks in advance,
David.
