0000867: Undefined references to _dl_app_fini_array and _dl_app_init_array when trying to link statically with uclibc

Notes
(0001346) psm 05-05-06 03:59	run gcc w/ -v and provide that output, your toolchain seems to work incorrectly _dl_app__array does not have to be in libc.a (only in libc.so) and shouldn't be used for static linking. readelf -s libc.a \| more, search for __uClibc_main and see if _dl_app__array appear there (and see if __uClibc_main.os or .oS was added to the archive)

(0001355) blurgk 05-08-06 05:03	Thanks for your help. $ arm-linux-gcc -v Reading specs from /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/specs Configured with: /usr/src/buildroot-20060308/toolchain_build_arm/gcc-3.4.5/configure --prefix=/usr/src/buildroot-20060308/build_arm/staging_dir --build=i386-pc-cygwin --host=i386-pc-cygwin --target=arm-linux-uclibc --enable-languages=c,c++ --enable-shared --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld --disable-nls --disable-threads --enable-multilib Thread model: single gcc version 3.4.5 Readelf tells me that _dl_app_init_array and _dl_app_fini_array are in libc.a, and yes __uClibc_main.os was added the archive.

(0001356) psm 05-08-06 05:31	those shouldn't be in __uClibc_main.os (only in __uClibc_main.oS and it can happen only if that file was compiled w/ -DSHARED (that is incorrect, probably your toolchain -cygwin? added that?)

(0001357) blurgk 05-08-06 05:58	If I delete __uClibc_main.os in libc/misc/internals and rebuild uClibc from its main directory (just 'make') it works and the symbols are not included. How could I check my toolchain for this, where is it defined? Actually I get the same kind of errors with pthread: /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(libc_pthread_init.os): In function `__libc_pthread_init': libc_pthread_init.c:(.text+0x30): undefined reference to `__libc_pthread_functions' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(__uClibc_main.os): In function `__GI___uClibc_fini': __uClibc_main.c:(.text+0x13c): undefined reference to `_dl_app_fini_array' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(__uClibc_main.os): In function `__uClibc_main': __uClibc_main.c:(.text+0x2e0): undefined reference to `_dl_app_init_array' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(rpc_thread.os): In function `__rpc_thread_destroy': rpc_thread.c:(.text+0xd0): undefined reference to `__libc_pthread_functions' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(rpc_thread.os): In function `rpc_thread_multi': rpc_thread.c:(.text+0x12c): undefined reference to `__libc_pthread_functions' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(rpc_thread.os): In function `__rpc_thread_variables': rpc_thread.c:(.text+0x27c): undefined reference to `__libc_pthread_functions' collect2: ld returned 1 exit status (only this after libc.a is fixed:) /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(libc_pthread_init.os): In function `__libc_pthread_init': libc_pthread_init.c:(.text+0x30): undefined reference to `__libc_pthread_functions' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(rpc_thread.os): In function `__rpc_thread_destroy': rpc_thread.c:(.text+0xd0): undefined reference to `__libc_pthread_functions' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(rpc_thread.os): In function `rpc_thread_multi': rpc_thread.c:(.text+0x12c): undefined reference to `__libc_pthread_functions' /usr/src/buildroot-20060308/build_arm/staging_dir/lib/gcc/arm-linux-uclibc/3.4.5/../../../../arm-linux-uclibc/lib/libc.a(rpc_thread.os): In function `__rpc_thread_variables': rpc_thread.c:(.text+0x27c): undefined reference to `__libc_pthread_functions'

(0001358) psm 05-08-06 06:39	__libc_pthread_functions missing is the same, the file was compiled w/ -DSHARED you can add make V=1 to make the compile lines visible or run CC="your-gcc -v" to see more, I have no idea where -DSHARED crept in

(0001359) blurgk 05-08-06 07:04	Yes, I had to rebuild rpc_thread.os and libc_pthread_init.os the same way to have working static libraries (libc.a and libpthread.a). So there would be a difference between running make in the uClibc directory and when buildroot runs make.

(0001360) psm 05-08-06 07:15	for sure not buildroot is adding this (checked on 20060327 version), I am sure that something from your cygwin env is doing it.

(0001362) vapier 05-08-06 20:20	cygwin's inability to recognize case difference is your problem both libc_pthread_init.oS and libc_pthread_init.os need to be generated but since cygwin thinks these are the same file, one clobbers the other solution: dont use cygwin, use colinux

Issue History
Date Modified	Username	Field	Change
05-05-06 02:15	blurgk	New Issue
05-05-06 02:15	blurgk	Status	new => assigned
05-05-06 02:15	blurgk	Assigned To	=> uClibc
05-05-06 03:59	psm	Note Added: 0001346
05-08-06 05:03	blurgk	Note Added: 0001355
05-08-06 05:31	psm	Note Added: 0001356
05-08-06 05:58	blurgk	Note Added: 0001357
05-08-06 06:39	psm	Note Added: 0001358
05-08-06 07:04	blurgk	Note Added: 0001359
05-08-06 07:15	psm	Note Added: 0001360
05-08-06 20:20	vapier	Note Added: 0001362
05-08-06 20:20	vapier	Status	assigned => closed
05-08-06 20:20	vapier	Resolution	open => won't fix

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