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Topic: about Use external toolchain problems

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hi all,
     I have a question about external toolchain compiled for (verison :OpenWrt 14.07 for MT7620a).
     I compiled successfully without external toolchain.But when I config the following:
          --- Use external toolchain                           
     [ ]   Use host's toolchain                           
     (mipsel-openwrt-linux-uclibc) Target name           
     (mipsel-openwrt-linux-uclibc-) Toolchain prefix     
     (/opt/mips_7620_toolchain/toolchain/) Toolchain root
     (uclibc) Toolchain libc                             
     (./usr/bin ./bin) Toolchain program path             
     (./usr/include ./include) Toolchain include path     
     (./usr/lib ./lib) Toolchain library path             
                                                           
   
     
    something error is happened for dmesg about the following :
     
     
  make[6]: Entering directory `/disk2/openwrt/build_dir/target-mipsel-openwrt-linux-uclibc/util-linux-2.24.1'
/bin/bash ./libtool  --tag=CC   --mode=link mipsel-openwrt-linux-uclibc-gcc -fsigned-char -fno-common -Wall -Werror=sequence-point -Wextra -Wmissing-declarations -Wmissing-parameter-type -Wmissing-prototypes -Wno-missing-field-initializers -Wredundant-decls -Wsign-compare -Wtype-limits -Wuninitialized -Wunused-but-set-parameter -Wunused-but-set-variable -Wunused-parameter -Wunused-result -Wunused-variable -Wnested-externs -Wpointer-arith -Wstrict-prototypes -Os -pipe -mno-branch-likely -mips32r2 -mtune=24kec -mdsp -fno-caller-saves -msoft-float -fpic   -L/disk2/openwrt/staging_dir/target-mipsel-openwrt-linux-uclibc/usr/lib -L/disk2/openwrt/staging_dir/target-mipsel-openwrt-linux-uclibc/lib -L/opt/mips_7620_toolchain/toolchain//usr/lib -L/opt/mips_7620_toolchain/toolchain//lib  -o dmesg sys-utils/dmesg.o  libcommon.la -lrt
OpenWrt-libtool: link: mipsel-openwrt-linux-uclibc-gcc -fsigned-char -fno-common -Wall -Werror=sequence-point -Wextra -Wmissing-declarations -Wmissing-parameter-type -Wmissing-prototypes -Wno-missing-field-initializers -Wredundant-decls -Wsign-compare -Wtype-limits -Wuninitialized -Wunused-but-set-parameter -Wunused-but-set-variable -Wunused-parameter -Wunused-result -Wunused-variable -Wnested-externs -Wpointer-arith -Wstrict-prototypes -Os -pipe -mno-branch-likely -mips32r2 -mtune=24kec -mdsp -fno-caller-saves -msoft-float -fpic -o dmesg sys-utils/dmesg.o  -L/disk2/openwrt/staging_dir/target-mipsel-openwrt-linux-uclibc/usr/lib -L/disk2/openwrt/staging_dir/target-mipsel-openwrt-linux-uclibc/lib -L/opt/mips_7620_toolchain/toolchain//usr/lib -L/opt/mips_7620_toolchain/toolchain//lib ./.libs/libcommon.a -lrt
/disk2/mips_7620_toolchain/toolchain/bin/../lib/gcc/mipsel-openwrt-linux-uclibc/4.8.3/../../../../mipsel-openwrt-linux-uclibc/bin/ld: warning: libdl.so.0, needed by /opt/mips_7620_toolchain/toolchain//lib/librt.so, not found (try using -rpath or -rpath-link)
/disk2/mips_7620_toolchain/toolchain/bin/../lib/gcc/mipsel-openwrt-linux-uclibc/4.8.3/../../../../mipsel-openwrt-linux-uclibc/bin/ld: warning: libpthread.so.0, needed by /opt/mips_7620_toolchain/toolchain//lib/librt.so, not found (try using -rpath or -rpath-link)
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_create'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_cancel'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_detach'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_once'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_attr_setstacksize'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `dlopen'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_sigmask'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `dlsym'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `__pthread_unwind'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_barrier_init'
/opt/mips_7620_toolchain/toolchain//lib/librt.so: undefined reference to `pthread_barrier_wait'
collect2: error: ld returned 1 exit status
make[6]: *** [dmesg] Error 1   

ls -la /opt/mips_7620_toolchain/toolchain//lib/lib*
/opt/mips_7620_toolchain/toolchain//lib/libpthread.so.0 -> libpthread-0.9.33.2.so
/opt/mips_7620_toolchain/toolchain//lib/librt.so -> librt.so.0
/opt/mips_7620_toolchain/toolchain//lib/libdl.so.0 -> libdl-0.9.33.2.so
....




BR

(Last edited by suzaichuan on 9 Oct 2016, 05:59)

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