the pitfull way to create a uClinux image including gdb.

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After downloaded and installed the GCT‘s SDK and toolchain, we try to make an our own image which include gdb. But the way is much more tortuous than we thought. Most problems are related with mtd-utils and the most difficult problem is related with uClib. Here, record all pits and resolving way simply.

1. make menuconfig

zconf.tab.c: undefined reference to kconf_id_lookup()

Deal:

add declaration for kconf_id_lookup() into config/kconfig/zconf.tab.c:

extern struct kconf_id * kconf_id_lookup(register const char * str, register unsigned int len);

2. make

GEN extra/locale/wctables.h

extra/locale/Makefile.in:179: recipe for target ‘extra/locale/wctables.h‘ failed

Deal:

download gen_wctype.patch from http://ftp.osuosl.org/pub/manulix/scripts/build-scripts/PPFILES/ppfiles-uclibc/gen_wctype.patch and apply it to uClibc/extra/locale/gen_wctype.c.

3. make

user/gdb/gdb/cp-name-parser.y:1980:20:error comparison between ‘enum demangle_compenent_type‘ and ‘enum<anoymous>‘[-Werror=enum-compare]

Deal:

comparing between different enum types is an error. force change on of them to int.

4. make

.../gdb/ada-lang.c:8186:30: error: comparison between ‘enum exp_opcode‘ and ‘enum ada_operator‘[-Werror=enum-compare]

Deal:

Same as the last.

5. make

mkfs.ubifs/hashtable/hashtable_itr.c:42:1: error: redefinition of ‘hashtable_iterator_key‘

Deal:

This is the fault of mtd-utils-1.5.0.

Change the extern to static before the definition of hashtable_iterator_key and hashtable_iterator_value in hashtable_itr.h.

Delete the definitions of hashtable_iterator_key and hashtable_iterator_value in hashtable_itr.c

Do the same things for hashtable_itr.c and hashtable_itr.h in tools/mtd-utils/mkffs.ubifs and user/mtd-utils/mkfs.ubifs. If not, there will be and an obscure error:

collect2: ld returned 1.

This is because the hashtable_iterator_key and hashtable_iterator_value are multidefined in three places. So ld won‘t know which to use.

6. make

mkffs.jffs2.c:70:21: fatal error: sys/acl.h: No such file or directory.

Deal:

make WITHOUT_XATTR=1

Just don‘t use the libacl but zlib.

Another way: cross-compile and install libacl-dev. It‘s not necessary.

7. make WITHOUT_XATTR=1

compr_zlib.c:39: fatal error: zlib.h: No such file or directory.

Deal:

Download zlib-1.2.11.tar.gz and lzo.2.10.tar.gz

tar zxvf zlib-1.2.11.tar.gz

cd zlib-1.2.11

CC=armv7el-linux-gcc ./configure --shared --prefix=/opt/armv7el/usr/arm-buildroot-linux-uclibcgnueabi/

make

make install

tar zxvf lzo.2.10.tar.gz

cd lzo.2.10

CC=armv7el-linux-gcc ./configure --host=armv7-linux --prefix=/opt/armv7/usr/arm-buildroot-linux-uclibcgnueabi/

make

make install

8. make WITHOUT_XATTR=1

arm-buildroot-linux-uclibcgnueabi/bin/ld:cannot find -lz

Deal:

Need to cross-compile openssl and install to /opt/armv7el/usr/arm-buildroot-linux-uclibcgnueabi/

Downlaod openssl-1.1.0g.tar.gz from https://www.openssl.org/source/

tar zxvf openssl-1.1.0g.tar.gz

cd openss-1.1.0g

CC=armv7el-linux-gcc ./configure --prefix=/opt/armv7el/usr/arm-buildroot-linux-uclibcgnueabi/

9. make WITHOUT_XATTR=1

arm-buildroot-linux-uclibcgnueabi/bin/ld: cannot find -llzo2

Deal:

This is becauses of the failure of 7 steps when make lzo.2.10

10. make WITHOUT_XATTR=1

mkfs.ubifs/mkfs.ubifs.h:46:23: fatal error: uuid/uuid.h: No such file or directory

Deal:

Download e2fsprogs-libs-1.43.7.tar.gz from https://www.kernel.org/pub/linux/kernel/people/tytso/e2fsprogs/v1.43.7/

tar zxvf e2fsprogs-libs-1.43.7.tar.gz

cd e2fsprogs-libs-1.43.7

CC=armv7el-linux-gcc ./configure --host=armv7-linux --prefix=/opt/armv7el/usr/arm-buildroot-linux-uclibcgnueabi/

make

sudo make install.

 

About Cross-compile:

1. toolchains/usr/, cross-compile tools‘ home.

2. /opt/armv7el/usr/arm-buildroot-linux-uclibcgnueabi/，all files ( head files, libs and so on)  whose host is target machine but may be refered to during compiling should be here.

 

the pitfull way to create a uClinux image including gdb.

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本文系统来源：http://www.cnblogs.com/clblacksmith/p/7966207.html

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