Does Qt4.7.3 have specific requirement of the glibc version?
Hello,
I am cross-compiling Qt for embedded linux.
after deployment on the target device, i run the application but get the following errors:
./fancybrowser: /lib/libc.so.6: version `GLIBC_2.9’ not found (required by /home/root/libQtGui.so.4)
./fancybrowser: /lib/libc.so.6: version `GLIBC_2.10’ not found (required by /home/root/libQtNetwork.so.4)
./fancybrowser: /lib/libc.so.6: version `GLIBC_2.9’ not found (required by /home/root/libQtCore.so.4)
after that, i cross-complied a very simple application which can run normally on the target device.
my target device has a libc.2.5.so, so i think that maybe qt4.7.3 has a requirement on glibc version?
my qmake.conf:
- include(../../common/g++.conf)
- include(../../common/linux.conf)
- include(../../common/qws.conf)
- # modifications to g++.conf
- QMAKE_CC = i686-pc-linux-gnu-gcc
- QMAKE_CXX = i686-pc-linux-gnu-g++
- QMAKE_LINK = i686-pc-linux-gnu-g++
- QMAKE_LINK_SHLIB = i686-pc-linux-gnu-g++
- QMAKE_INCDIR = /root/CodeSourcery/Sourcery_G++_Lite/i686-pc-linux-gnu/libc/usr/include
- QMAKE_LIBDIR = /root/CodeSourcery/Sourcery_G++_Lite/i686-pc-linux-gnu/libc/usr/lib
- # modifications to linux.conf
- QMAKE_AR = i686-pc-linux-gnu-ar cqs
- QMAKE_OBJCOPY = i686-pc-linux-gnu-objcopy
- QMAKE_STRIP = i686-pc-linux-gnu-strip
- load(qt_config)
10 replies
- root@adewang-desktop:~/tmp/qtEmbed/examples/webkit/fancybrowser# ldd fancybrowser
- linux-gate.so.1 => (0x00bc8000)
- libQtWebKit.so.4 => /root/tmp/QtEmbed/lib/libQtWebKit.so.4 (0x00bc9000)
- libQtGui.so.4 => /root/tmp/QtEmbed/lib/libQtGui.so.4 (0x17a39000)
- libQtNetwork.so.4 => /root/tmp/QtEmbed/lib/libQtNetwork.so.4 (0x0034c000)
- libQtCore.so.4 => /root/tmp/QtEmbed/lib/libQtCore.so.4 (0x006e6000)
- libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0x00aa6000)
- libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00110000)
- libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0x00206000)
- libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x0022c000)
- libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0x00418000)
- libdl.so.2 => /lib/tls/i686/cmov/libdl.so.2 (0x00a57000)
- librt.so.1 => /lib/tls/i686/cmov/librt.so.1 (0x005a3000)
- /lib/ld-linux.so.2 (0x006c9000)
i have definded QMAKE_LIBDIR = /root/CodeSourcery/Sourcery_G++_Lite/i686-pc-linux-gnu/libc/usr/lib
why does the excutable not linked to those lib in /root/CodeSourcery/Sourcery_G++_Lite/i686-pc-linux-gnu/libc/usr/lib, but still linked to the default libs in /lib/tls/i686/cmov?
when i build qt, i used the following configure options:
- ./configure -xplatform qws/linux-i686-g++ -embedded x86 -D QT_NO_QWS_MULTIPROCESS \
- -prefix /root/tmp/QtEmbed \
- -qt-gfx-linuxfb -qt-gfx-vnc \
- -qt-libpng -no-libmng -qt-libjpeg -no-openssl -no-nis -no-cups -depths 16 \
- -qt-kbd-linuxinput -nomake demos -nomake examples \
- -confirm-license -opensource
Edit: Added @ tags [ZapB]
Well, since you look to be building on an i686 for a different i686 it looks as if something is getting confused and using the wrong toolchain resulting in the wrong glibc (and others) being linked in when you build Qt.
You need to ensure that i686-pc-linux-gnu-gcc and friends actually get resolved to the compiler that is part of your embedded toolchain rather than your normal system compiler. Hopefully that will be enough to get the toolchain to link to the correct libs. If not, then we may need to look at adjusting the linker search path.
So try doing:
- which i686-pc-linux-gnu-gcc
and see if it resolves to the embedded cross compiler. If not, adjust $PATH environment variable so that it does and try re-configuring and rebuilding Qt.
Hmmm, OK then. Here’s some more things to check:
- Look over the output of Qt’s configure command to make sure it all looks sane.
- Look at the output during the Qt build to make sure that looks sane
- Ensure that it is not just a case of your $LD_LIBRARY_PATH or /etc/ld.so.conf causing ldd to return spurious results.
- Dynamic section at offset 0x2e2c8c contains 28 entries:
- Tag Type Name/Value
- 0x00000001 (NEEDED) Shared library: [libpthread.so.0]
- 0x00000001 (NEEDED) Shared library: [libdl.so.2]
- 0x00000001 (NEEDED) Shared library: [librt.so.1]
- 0x00000001 (NEEDED) Shared library: [libstdc++.so.6]
- 0x00000001 (NEEDED) Shared library: [libm.so.6]
- 0x00000001 (NEEDED) Shared library: [libgcc_s.so.1]
- 0x00000001 (NEEDED) Shared library: [libc.so.6]
- 0x0000000e (SONAME) Library soname: [libQtCore.so.4]
- 0x0000000f (RPATH) Library rpath: [/root/tmp/QtEmbed/lib]
- 0x0000000c (INIT) 0x42744
- 0x0000000d (FINI) 0x1b99f8
- 0x00000004 (HASH) 0xd4
- 0x00000005 (STRTAB) 0x14a98
- 0x00000006 (SYMTAB) 0x4f98
- 0x0000000a (STRSZ) 135346 (bytes)
- 0x0000000b (SYMENT) 16 (bytes)
- 0x00000003 (PLTGOT) 0x2e4094
- 0x00000002 (PLTRELSZ) 15016 (bytes)
- 0x00000014 (PLTREL) REL
- 0x00000017 (JMPREL) 0x3ec9c
- 0x00000011 (REL) 0x37c6c
- 0x00000012 (RELSZ) 28720 (bytes)
- 0x00000013 (RELENT) 8 (bytes)
- 0x6ffffffe (VERNEED) 0x37aac
- 0x6fffffff (VERNEEDNUM) 7
- 0x6ffffff0 (VERSYM) 0x35b4a
- 0x6ffffffa (RELCOUNT) 1624
- 0x00000000 (NULL) 0x0
No information is related with /lib/tls/i686/cmov
You must log in to post a reply. Not a member yet? Register here!