bug#20102: Problem with ld.so RUNPATH on armhf

[Ludovic Courtès]

Mark H Weaver <address@hidden> skribis:

> Mark H Weaver <address@hidden> writes:
>
>> address@hidden (Ludovic Courtès) writes:
>>
>>> Could you try the same on armhf?
>>
>> I've done so.  Here's the transcript:
>>
>> address@hidden:/tmp/nix-build-glibc-2.21.drv-0$ source environment-variables 
>> address@hidden:/tmp/nix-build-glibc-2.21.drv-0/build$ cd 
>> /tmp/nix-build-glibc-2.21.drv-0/build/elf/
>> address@hidden:/tmp/nix-build-glibc-2.21.drv-0/build/elf$ /usr/bin/strace -s 
>> 345 -f -o ,,s gcc --verbose   -nostdlib -nostartfiles -shared -o 
>> /tmp/nix-build-glibc-2.21.drv-0/build/elf/ld.so.new            \
>>        -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs       
>> \
>>        /tmp/nix-build-glibc-2.21.drv-0/build/elf/librtld.os 
>> -Wl,--version-script=/tmp/nix-build-glibc-2.21.drv-0/build/ld.map            
>>     \
>>        -Wl,-soname=ld-linux-armhf.so.3                       \
>>        -Wl,-defsym=_begin=0
>>> > > > Using built-in specs.
>> COLLECT_GCC=gcc
>> COLLECT_LTO_WRAPPER=/gnu/store/qchkhdj4nn4aqs8rrbbyybrj2sarjs3j-gcc-4.8.4/libexec/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/lto-wrapper
>> Target: armv7l-unknown-linux-gnueabihf
>> Configured with: 
>> Thread model: posix
>> gcc version 4.8.4 (GCC) 
>> COMPILER_PATH=/gnu/store/qchkhdj4nn4aqs8rrbbyybrj2sarjs3j-gcc-4.8.4/libexec/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/:/gnu/store/qchkhdj4nn4aqs8rrbbyybrj2sarjs3j-gcc-4.8.4/libexec/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/:/gnu/store/qchkhdj4nn4aqs8rrbbyybrj2sarjs3j-gcc-4.8.4/libexec/gcc/armv7l-unknown-linux-gnueabihf/:/gnu/store/fc8kqk3dazn6mcgcjxd931752b2pf3wj-gcc-4.8.4-lib/lib/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/:/gnu/store/fc8kqk3dazn6mcgcjxd931752b2pf3wj-gcc-4.8.4-lib/lib/gcc/armv7l-unknown-linux-gnueabihf/
>> LIBRARY_PATH=/gnu/store/84bsc47g2052allrmh4ph6xaqvp6f4cm-perl-5.16.1/lib/:/gnu/store/lakz7x2m4vqvvfdasn5x95a91rkqqs3c-bzip2-1.0.6/lib/:/gnu/store/mrb163wwjc45hgrcjwmb6nxp8fgab3lk-xz-5.0.4/lib/:/gnu/store/f1fnh2sp1j32jysdr2nw9z296iba6b5d-file-5.22/lib/:/gnu/store/l9ji7gc640j2r8c1c561iwcnqpcd585m-gawk-4.1.1/lib/:/gnu/store/w7gjnx5rz64mssxndnryazlwlhflfd2j-binutils-2.25/lib/:/gnu/store/fbdjazgwy3zyx8qc5z4ag0j78k2d7raw-glibc-2.21/lib/:/gnu/store/psmxs9gcr9l4arz7agmp94vm8fjwninv-glibc-utf8-locales-2.21/lib/:/gnu/store/fc8kqk3dazn6mcgcjxd931752b2pf3wj-gcc-4.8.4-lib/lib/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/:/gnu/store/fc8kqk3dazn6mcgcjxd931752b2pf3wj-gcc-4.8.4-lib/lib/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/../../../:/gnu/store/fbdjazgwy3zyx8qc5z4ag0j78k2d7raw-glibc-2.21/lib
>> COLLECT_GCC_OPTIONS='-v' '-nostdlib' '-nostartfiles' '-shared' '-o' 
>> '/tmp/nix-build-glibc-2.21.drv-0/build/elf/ld.so.new' '-march=armv7-a' 
>> '-mfloat-abi=hard' '-mfpu=vfpv3-d16' '-mthumb' '-mtls-dialect=gnu'
>>  
>> /gnu/store/qchkhdj4nn4aqs8rrbbyybrj2sarjs3j-gcc-4.8.4/libexec/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/collect2
>>  --eh-frame-hdr -shared -dynamic-linker 
>> /gnu/store/fbdjazgwy3zyx8qc5z4ag0j78k2d7raw-glibc-2.21/lib/ld-linux-armhf.so.3
>>  -X -m armelf_linux_eabi -o 
>> /tmp/nix-build-glibc-2.21.drv-0/build/elf/ld.so.new 
>> -L/gnu/store/84bsc47g2052allrmh4ph6xaqvp6f4cm-perl-5.16.1/lib 
>> -L/gnu/store/lakz7x2m4vqvvfdasn5x95a91rkqqs3c-bzip2-1.0.6/lib 
>> -L/gnu/store/mrb163wwjc45hgrcjwmb6nxp8fgab3lk-xz-5.0.4/lib 
>> -L/gnu/store/f1fnh2sp1j32jysdr2nw9z296iba6b5d-file-5.22/lib 
>> -L/gnu/store/l9ji7gc640j2r8c1c561iwcnqpcd585m-gawk-4.1.1/lib 
>> -L/gnu/store/w7gjnx5rz64mssxndnryazlwlhflfd2j-binutils-2.25/lib 
>> -L/gnu/store/fbdjazgwy3zyx8qc5z4ag0j78k2d7raw-glibc-2.21/lib 
>> -L/gnu/store/psmxs9gcr9l4arz7agmp94vm8fjwninv-glibc-utf8-locales-2.21/lib 
>> -L/gnu/store/fc8kqk3dazn6mcgcjxd931752b2pf3wj-gcc-4.8.4-lib/lib/gcc/armv7l-unknown-linux-gnueabihf/4.8.4
>>  
>> -L/gnu/store/fc8kqk3dazn6mcgcjxd931752b2pf3wj-gcc-4.8.4-lib/lib/gcc/armv7l-unknown-linux-gnueabihf/4.8.4/../../..
>>  -L/gnu/store/fbdjazgwy3zyx8qc5z4ag0j78k2d7raw-glibc-2.21/lib -z combreloc 
>> -z relro --hash-style=both -z defs 
>> /tmp/nix-build-glibc-2.21.drv-0/build/elf/librtld.os 
>> --version-script=/tmp/nix-build-glibc-2.21.drv-0/build/ld.map 
>> -soname=ld-linux-armhf.so.3 -defsym=_begin=0
>> address@hidden:/tmp/nix-build-glibc-2.21.drv-0/build/elf$
>
> and I should add this sanity check:
>
> address@hidden:/tmp/nix-build-glibc-2.21.drv-0/build/elf$ readelf -a 
> ld.so.new | grep RUNPATH
>  0x0000001d (RUNPATH)                    Library runpath: 
> [/gnu/store/fbdjazgwy3zyx8qc5z4ag0j78k2d7raw-glibc-2.21/lib]

So there’s no explicit -rpath, yet it slips through.

In that build directory, can you rm elf/ld*so* and then restart the
build, but this time with:

  export GUIX_LD_WRAPPER_DEBUG=yes

TIA!

Ludo’.