0002864: Java compiler and libgcj build fails (arm-iwmmxt-eabi)

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Category

Severity

Reproducibility

Date Submitted

Last Update

0002864

[buildroot] Architecture Specific

minor

always

04-06-08 14:28

05-15-08 05:45

Reporter

Francesco

View Status

public

Assigned To

buildroot

Priority

normal

Resolution

open

Status

assigned

Product Version

0.9.27

Summary

0002864: Java compiler and libgcj build fails (arm-iwmmxt-eabi)

Description

I get this error while trying to compile libgcj and java compiler for arm-iwmmxt-eabi:

#
# Now for the ugly 3.3.x soft float hack...
#
#
# Ok... that's enough of that.
#
mkdir -p /root/tmp/buildroot/project_build_arm/uclibc/root/usr/lib /root/tmp/buildroot/project_build_arm/uclibc/root/usr/sbin
touch /root/tmp/buildroot/toolchain_build_arm/gcc-4.2.3-final/.installed
# These are in /lib, so...
rm -rf /root/tmp/buildroot/project_build_arm/uclibc/root/usr/lib/libgcc_s*.so*
cp -dpf root/tmp/buildroot/build_arm/staging_dir/usr/arm-linux-uclibcgnueabi/lib/libgcc_s* \
/root/tmp/buildroot/project_build_arm/uclibc/root/lib/
cp -dpf /root/tmp/buildroot/build_arm/staging_dir/usr/arm-linux-uclibcgnueabi/lib/libstdc++.so* \
/root/tmp/buildroot/project_build_arm/uclibc/root/usr/lib/
cp -dpf /root/tmp/buildroot/build_arm/staging_dir/lib/libgcj.so* /root/tmp/buildroot/project_build_arm/uclibc/root/lib/
cp: cannot stat `/root/tmp/buildroot/build_arm/staging_dir/lib/libgcj.so*': No such file or directory
make: *** [/root/tmp/buildroot/toolchain_build_arm/gcc-4.2.3-final/.libs_installed] Error 1

Additional Information

Attached Files

.config [^] (13,578 bytes) 04-06-08 14:28

Relationships

Notes
(0007684) tpetazzoni 05-15-08 05:33	Problem still exists in today's Subversion of Buildroot.

(0007694) tpetazzoni 05-15-08 05:45	Ok, the problem is that when you enable the Java compiler, the option BR2_INSTALL_LIBGCJ is enabled. When this option is selected, toolchain/gcc/gcc-uclibc-4.x.mk does the following thing: GCC_TARGET_LANGUAGES:=$(GCC_TARGET_LANGUAGES),java So, Java is added to GCC_TARGET_LANGUAGES. However, GCC_TARGET_LANGUAGES is used in the optional 3rd step of gcc compilation: compilation of a native gcc for the target (not a cross-compiler). The list of languages supported by the cross-compiler is in GCC_CROSS_LANGUAGES. However, for some reason, when BR2_INSTALL_LIBGCJ is enabled, at the of the second step of gcc compilation (compilation of the final cross-compiler), then the Makefile looks for some libgcj.so* files. Which of course are not present, since "java" was not in GCC_CROSS_LANGUAGES.

Issue History
Date Modified	Username	Field	Change
04-06-08 14:28	Francesco	New Issue
04-06-08 14:28	Francesco	Status	new => assigned
04-06-08 14:28	Francesco	Assigned To	=> buildroot
04-06-08 14:28	Francesco	File Added: .config
05-15-08 05:33	tpetazzoni	Note Added: 0007684
05-15-08 05:45	tpetazzoni	Note Added: 0007694