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Old 10-14-2014, 03:39 PM   #1
lachlanp
LQ Newbie
 
Registered: Oct 2014
Posts: 2

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U-boot build fails - cannot find lgcc / gcclib.a


I am using Ubuntu 12.04 LTS 64 bit and trying to create a Linux Image for the SAMA5D36-EK. In doing so I need the mkimage command. According to website
www.at91.com/linux4sam/bin/view/LinuxSAM/U-Boot
the mkimage source comes with the U-boot source and is built during U-boot compilation. But I am having problems.

Step 1. I have installed the following:
git 1.7.5, tar 1.2.4, python 2.7.3
I have also done:
$ sudo apt-get install gawk wget git-core diffstat unzip textinfo gcc-multilib build-essential
$ sudo apt-get install chrpath libsdl1.2-dev xterm autoconf automake libtool libglib2.0-dev
$ sudo apt-get install linux-image-generic linux-headers-generic
$ sudo dpkg –add-architecture i386
$ sudo apt-get update
$ sudo apt-get install libxss1:i386 libxft2:i386

Step 2. I have installed the cross toolchain according to Yocto ADT Manual sections 3.1/ 3.2 as follows:
$ tar -xjf adt_installer.tar.bz2
$ cd adt_installer
$ gedit adt_installer.conf and set
YOCTOADT_TARGETS=”arm”
YOCTOADT_ROOTFS_arm=”minimal sato-sdk”
YOCTOADT_SYSROOT_IMAGE_arm=”sato-sdk”
(and other arm based settings then save)
$ cd adt-installer
$ ./adt_installer (using the default cross-toolchain location)
$ sudo chmod +x /opt/poky/1.6/envrionment-setup-arm5te-poky-linux-gnueabi
$ sudo /opt/poky/1.6/envrionment-setup-arm5te-poky-linux-gnueabi
The cross development toolchain is now located in
/opt/poky/1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.8.2/

Step 3. Create U-boot from source
$ git clone git://github.com/linux4sam/u-boot-at91.git
$ cd u-boot-at91
$ make distclean
$ make sama5d3xek_nandflash_config
$ make CROSS_COMPILE=/opt/poky/1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.8.2/
After working for some time it comes with the error: ld: cannot find -lgcc

Step 4.
If I run
$ sudo find /usr/ -name libgcc*
I get the follwing:
/usr/lib/x86_64-linux-gnu/libgccpp.so.1
/usr/lib/x86_64-linux-gnu/libgccpp.so.1.0.3
/usr/lib/ure/lib/libgcc3_uno.so
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_s_32.so
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_s.so.1
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_eh.a
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_s.so
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_s_x32.so
/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc.a
/usr/lib/gcc/x86_64-linux-gnu/4.8/32/libgcc_eh.a
/usr/lib/gcc/x86_64-linux-gnu/4.8/32/libgcc_s.so
/usr/lib/gcc/x86_64-linux-gnu/4.8/32/libgcc.a
/usr/lib/gcc/x86_64-linux-gnu/4.8/x32/libgcc_eh.a
/usr/lib/gcc/x86_64-linux-gnu/4.8/x32/libgcc_s.so
/usr/lib/gcc/x86_64-linux-gnu/4.8/x32/libgcc.a
/usr/lib32/libgcc_s.so.1
/usr/share/lintian/overrides/libgcc1
/usr/share/doc/libgcc1
/usr/share/doc/libgcc-4.8-dev
/usr/libx32/libgcc_s.so.1

If I run
$ sudo /sbin/ldconfig -p | grep libgcc*
I get:
libgcrypt.so.11 (libc6,x86-64) => /lib/x86_64-linux-gnu/libgcrypt.so.11
libgcr-ui-3.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgcr-ui-3.so.1
libgcr-base-3.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgcr-base-3.so.1
libgconf-2.so.4 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgconf-2.so.4
libgck-1.so.0 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgck-1.so.0
libgccpp.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgccpp.so.1
libgcc_s.so.1 (libc6,x32) => /usr/libx32/libgcc_s.so.1
libgcc_s.so.1 (libc6,x86-64) => /lib/x86_64-linux-gnu/libgcc_s.so.1
libgcc_s.so.1 (libc6) => /lib/i386-linux-gnu/libgcc_s.so.1
libgcc_s.so.1 (libc6) => /usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_s.so.1
libgcc_s.so.1 (libc6) => /usr/lib32/libgcc_s.so.1
libgcc_s.so (libc6,x32) => /usr/lib/gcc/x86_64-linux-gnu/4.8/x32/libgcc_s.so
libgcc_s.so (libc6,x86-64) => /usr/lib/gcc/x86_64-linux-gnu/4.8/libgcc_s.so
libgcc_s.so (libc6) => /usr/lib/gcc/x86_64-linux-gnu/4.8/32/libgcc_s.so
libgc.so.1 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgc.so.1

There seems no reference to the two versions of the libgcc.a file that appear in subdirectories /32/ and /x32/

I then locate the follwing two files”
/etc/ld.so.conf.d/x86_64-linux-gnu.conf
/opt/poky/1.6/sysroots/x86_64-pokysdk-linux/etc/ld.so.conf
and add the following lines in both files:
/usr/lib/gcc/x86_64-linux-gnu/4.8
/usr/lib/gcc/x86_64-linux-gnu/4.8/32
/usr/lib/gcc/x86_64-linux-gnu/4.8/x32

I now repeat the three 'make' commands from step 3 . It makes about 200 or so files (tools, arch, common, drivers, fs, lib, net, test) but then comes to the same error as follws:
LD examples/standalone/hello_world
/opt/poky/1.6/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.8.2/ld: cannot find -lgcc
make[2]: *** [examples/standalone/hello_world] Error 1
make[1]: *** [examples/standalone] Error 2
make: *** [examples] Error 2

Step 5.
In the Makefile there is the following entries
# Add GCC lib
ifdef CONFIG_USE_PRIVATE_LIBGCC
ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
else
PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc
endif
else
PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
endif

Back in the terminal mode I do the following:
$ CONFIG_USE_PRIVATE_LIBGCC=yes
$ export CONFIG_USE_PRIVATE_LIBGCC
Then rerun the three make commands from Step 3 but get the same error

I then try
$ unset CONFIG_USE_PRIVATE_LIBGCC
and rerun the three commands but still the error occurs

Then I try
$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/gcc/x86_64-linux-gnu/4.8:/usr/lib/gcc/x86_64-linux-gnu/4.8/32:/usr/lib/gcc/x86_64-linux-gnu/4.8/x32
$ echo $LD_LIBRARY_PATH
/usr/lib/gcc/x86_64-linux/4.8:/usr/lib/gcc/x86_64-linux-gnu/4.8/32:/usr/lib/gcc/x86_64-linux-gnu/4.8/x32
and run the three make commands, but still an error

Then I try changing the entry in the Makefile from:
PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
To:
PLATFORM_LIBGCC := -L /usr/lib/gcc/x86_64-linux-gnu/4.8:/usr/lib/gcc/x86_64-linux-gnu/4.8/32:/usr/lib/gcc/x86_64-linux-gnu/4.8/x32 -lgcc
I save the file.
Back in the terminal mode I do the following:
$ CONFIG_USE_PRIVATE_LIBGCC=yes
$ export CONFIG_USE_PRIVATE_LIBGCC
Then rerun the three make commands from Step 3 but get the same error

I then try
$ unset CONFIG_USE_PRIVATE_LIBGCC
and rerun the three commands but still the error occurs

I then change the Makefile entry to:
PLATFORM_LIBGCC :=/usr/lib/gcc/x86_64-linux-gnu/4.8/32/libgcc.a
which finally gets past the -lgcc error associated with the hello_world example, but then fails a littl further on with hundreds of failuers starting with:
LD u-boot
arch/arm/cpu/armv7/at91/built-in.o: In function `at91_pll_rate':
/home/lachlan/u-boot-at91/arch/arm/cpu/armv7/at91/clock.c:45: undefined reference to `__aeabi_uidiv'
arch/arm/cpu/armv7/at91/built-in.o: In function `at91_clock_init':
/home/lachlan/u-boot-at91/arch/arm/cpu/armv7/at91/clock.c:100: undefined reference to `__aeabi_uidiv'
arch/arm/cpu/armv7/at91/built-in.o: In function `usec_to_tick':
/home/lachlan/u-boot-at91/arch/arm/cpu/armv7/at91/timer.c:50: undefined reference to `__aeabi_uidiv'
arch/arm/cpu/armv7/at91/built-in.o: In function `tick_to_time':
/home/lachlan/u-boot-at91/arch/arm/cpu/armv7/at91/timer.c:42: undefined reference to `__aeabi_uidiv'
common/built-in.o: In function `common_diskboot':
/home/lachlan/u-boot-at91/common/cmd_disk.c:100: undefined reference to `__aeabi_uidiv'
common/built-in.o: In function `do_mem_md':
/home/lachlan/u-boot-at91/common/cmd_mem.c:137: undefined reference to `__aeabi_idiv'
common/built-in.o: In function `bytes_per_second':
/home/lachlan/u-boot-at91/common/cmd_sf.c:86: undefined reference to `__aeabi_uidiv'
common/built-in.o: In function `spi_flash_update':
/home/lachlan/u-boot-at91/common/cmd_sf.c:207: undefined reference to `__aeabi_idiv'
/home/lachlan/u-boot-at91/common/cmd_sf.c:216: undefined reference to `__aeabi_uidiv'
/home/lachlan/u-boot-at91/common/cmd_sf.c:237: undefined reference to `__aeabi_uidiv'
/home/lachlan/u-boot-at91/common/cmd_sf.c:237: undefined reference to `__aeabi_uidivmod'
etc

I then change the Makefile entry to:
PLATFORM_LIBGCC :=/usr/lib/gcc/x86_64-linux-gnu/4.8/x32/libgcc.a
and the same result occurs as immediatly described above

Can anyone suggest how to fix this problem?
 
  


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