Valgrind can't find debug symbols, even with --extra-debuginfo-path












6















I'm attempting to install Valgrind on an embedded Debian-based PowerPC system. I've managed to cross-compile it successfully, but now it's complaining that it can't find debug information. I've put non-stripped copies of the relevant shared objects onto the filesystem and informed Valgrind of this directory, but it's still not working.



Invocation:



root@192.168.0.200:/# /root/valgrind/bin/valgrind --extra-debuginfo-path=/root/valgrind/usr/lib/debug /path/to/my_program -log
==6000== Memcheck, a memory error detector
==6000== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==6000== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
==6000== Command: /path/to/my_program -log
==6000==

valgrind: Fatal error at startup: a function redirection
valgrind: which is mandatory for this platform-tool combination
valgrind: cannot be set up. Details of the redirection are:
valgrind:
valgrind: A must-be-redirected function
valgrind: whose name matches the pattern: strlen
valgrind: in an object with soname matching: ld.so.1
valgrind: was not found whilst processing
valgrind: symbols from the object with soname: ld.so.1
valgrind:
valgrind: Possible fixes: (1, short term): install glibc's debuginfo
valgrind: package on this machine. (2, longer term): ask the packagers
valgrind: for your Linux distribution to please in future ship a non-
valgrind: stripped ld.so (or whatever the dynamic linker .so is called)
valgrind: that exports the above-named function using the standard
valgrind: calling conventions for this platform. The package you need
valgrind: to install for fix (1) is called
valgrind:
valgrind: On Debian, Ubuntu: libc6-dbg
valgrind: On SuSE, openSuSE, Fedora, RHEL: glibc-debuginfo
valgrind:
valgrind: Cannot continue -- exiting now. Sorry.


The offending file, ld.so.1, is in /lib, and my non-stripped copies are in a separate directory:



root@192.168.0.200:/# find / -name ld.so.1
/lib/ld.so.1
/root/valgrind/usr/lib/debug/ld.so.1
/root/valgrind/usr/lib/debug/lib/ld.so.1


My non-stripped copies from libc6-dbg_2.7-10ubuntu3_powerpc.deb appear to be compatible:



root@192.168.0.200:/# file /lib/ld.so.1 /root/valgrind/usr/lib/debug/ld.so.1 /root/valgrind/usr/lib/debug/lib/ld.so.1
/lib/ld.so.1: symbolic link to `ld-2.7.so'
/root/valgrind/usr/lib/debug/ld.so.1: symbolic link to `ld-2.7.so'
/root/valgrind/usr/lib/debug/lib/ld.so.1: symbolic link to `ld-2.7.so'
root@192.168.0.200:/# file /lib/ld-2.7.so /root/valgrind/usr/lib/debug/ld-2.7.so /root/valgrind/usr/lib/debug/lib/ld-2.7.so
/lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, with unknown capability 0x41000000 = 0x11676e75, with unknown capability 0x10000 = 0x90401, stripped
/root/valgrind/usr/lib/debug/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, not stripped
/root/valgrind/usr/lib/debug/lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), statically linked, not stripped


And if I understand how objdump works, it seems like the "must-be-redirected function" mentioned by Valgrind does indeed have an entry in the debug copy:



root@192.168.0.200:/# objdump -x /lib/ld-2.7.so | grep strlen
root@192.168.0.200:/# objdump -x /root/valgrind/usr/lib/debug/lib/ld-2.7.so | grep strlen
0002f734 l O .data.rel.ro 00000004 max_capstrlen
00018ff0 l F .text 000000b8 strlen


And yet the --extra-debuginfo-path argument has no effect. There's a brief mention of this switch in the manual, but this is practically all the information I've been able to find about it. Am I missing something else?



For the record, this machine cannot connect to the Internet, so letting apt / dpkg take care of things is sadly out of the question. /lib and most other system directories are also mounted read-only, so I can't just drop in a non-stripped replacement for ld-2.7.so (not that I would take such a risk).










share|improve this question



























    6















    I'm attempting to install Valgrind on an embedded Debian-based PowerPC system. I've managed to cross-compile it successfully, but now it's complaining that it can't find debug information. I've put non-stripped copies of the relevant shared objects onto the filesystem and informed Valgrind of this directory, but it's still not working.



    Invocation:



    root@192.168.0.200:/# /root/valgrind/bin/valgrind --extra-debuginfo-path=/root/valgrind/usr/lib/debug /path/to/my_program -log
    ==6000== Memcheck, a memory error detector
    ==6000== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
    ==6000== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
    ==6000== Command: /path/to/my_program -log
    ==6000==

    valgrind: Fatal error at startup: a function redirection
    valgrind: which is mandatory for this platform-tool combination
    valgrind: cannot be set up. Details of the redirection are:
    valgrind:
    valgrind: A must-be-redirected function
    valgrind: whose name matches the pattern: strlen
    valgrind: in an object with soname matching: ld.so.1
    valgrind: was not found whilst processing
    valgrind: symbols from the object with soname: ld.so.1
    valgrind:
    valgrind: Possible fixes: (1, short term): install glibc's debuginfo
    valgrind: package on this machine. (2, longer term): ask the packagers
    valgrind: for your Linux distribution to please in future ship a non-
    valgrind: stripped ld.so (or whatever the dynamic linker .so is called)
    valgrind: that exports the above-named function using the standard
    valgrind: calling conventions for this platform. The package you need
    valgrind: to install for fix (1) is called
    valgrind:
    valgrind: On Debian, Ubuntu: libc6-dbg
    valgrind: On SuSE, openSuSE, Fedora, RHEL: glibc-debuginfo
    valgrind:
    valgrind: Cannot continue -- exiting now. Sorry.


    The offending file, ld.so.1, is in /lib, and my non-stripped copies are in a separate directory:



    root@192.168.0.200:/# find / -name ld.so.1
    /lib/ld.so.1
    /root/valgrind/usr/lib/debug/ld.so.1
    /root/valgrind/usr/lib/debug/lib/ld.so.1


    My non-stripped copies from libc6-dbg_2.7-10ubuntu3_powerpc.deb appear to be compatible:



    root@192.168.0.200:/# file /lib/ld.so.1 /root/valgrind/usr/lib/debug/ld.so.1 /root/valgrind/usr/lib/debug/lib/ld.so.1
    /lib/ld.so.1: symbolic link to `ld-2.7.so'
    /root/valgrind/usr/lib/debug/ld.so.1: symbolic link to `ld-2.7.so'
    /root/valgrind/usr/lib/debug/lib/ld.so.1: symbolic link to `ld-2.7.so'
    root@192.168.0.200:/# file /lib/ld-2.7.so /root/valgrind/usr/lib/debug/ld-2.7.so /root/valgrind/usr/lib/debug/lib/ld-2.7.so
    /lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, with unknown capability 0x41000000 = 0x11676e75, with unknown capability 0x10000 = 0x90401, stripped
    /root/valgrind/usr/lib/debug/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, not stripped
    /root/valgrind/usr/lib/debug/lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), statically linked, not stripped


    And if I understand how objdump works, it seems like the "must-be-redirected function" mentioned by Valgrind does indeed have an entry in the debug copy:



    root@192.168.0.200:/# objdump -x /lib/ld-2.7.so | grep strlen
    root@192.168.0.200:/# objdump -x /root/valgrind/usr/lib/debug/lib/ld-2.7.so | grep strlen
    0002f734 l O .data.rel.ro 00000004 max_capstrlen
    00018ff0 l F .text 000000b8 strlen


    And yet the --extra-debuginfo-path argument has no effect. There's a brief mention of this switch in the manual, but this is practically all the information I've been able to find about it. Am I missing something else?



    For the record, this machine cannot connect to the Internet, so letting apt / dpkg take care of things is sadly out of the question. /lib and most other system directories are also mounted read-only, so I can't just drop in a non-stripped replacement for ld-2.7.so (not that I would take such a risk).










    share|improve this question

























      6












      6








      6


      2






      I'm attempting to install Valgrind on an embedded Debian-based PowerPC system. I've managed to cross-compile it successfully, but now it's complaining that it can't find debug information. I've put non-stripped copies of the relevant shared objects onto the filesystem and informed Valgrind of this directory, but it's still not working.



      Invocation:



      root@192.168.0.200:/# /root/valgrind/bin/valgrind --extra-debuginfo-path=/root/valgrind/usr/lib/debug /path/to/my_program -log
      ==6000== Memcheck, a memory error detector
      ==6000== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
      ==6000== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
      ==6000== Command: /path/to/my_program -log
      ==6000==

      valgrind: Fatal error at startup: a function redirection
      valgrind: which is mandatory for this platform-tool combination
      valgrind: cannot be set up. Details of the redirection are:
      valgrind:
      valgrind: A must-be-redirected function
      valgrind: whose name matches the pattern: strlen
      valgrind: in an object with soname matching: ld.so.1
      valgrind: was not found whilst processing
      valgrind: symbols from the object with soname: ld.so.1
      valgrind:
      valgrind: Possible fixes: (1, short term): install glibc's debuginfo
      valgrind: package on this machine. (2, longer term): ask the packagers
      valgrind: for your Linux distribution to please in future ship a non-
      valgrind: stripped ld.so (or whatever the dynamic linker .so is called)
      valgrind: that exports the above-named function using the standard
      valgrind: calling conventions for this platform. The package you need
      valgrind: to install for fix (1) is called
      valgrind:
      valgrind: On Debian, Ubuntu: libc6-dbg
      valgrind: On SuSE, openSuSE, Fedora, RHEL: glibc-debuginfo
      valgrind:
      valgrind: Cannot continue -- exiting now. Sorry.


      The offending file, ld.so.1, is in /lib, and my non-stripped copies are in a separate directory:



      root@192.168.0.200:/# find / -name ld.so.1
      /lib/ld.so.1
      /root/valgrind/usr/lib/debug/ld.so.1
      /root/valgrind/usr/lib/debug/lib/ld.so.1


      My non-stripped copies from libc6-dbg_2.7-10ubuntu3_powerpc.deb appear to be compatible:



      root@192.168.0.200:/# file /lib/ld.so.1 /root/valgrind/usr/lib/debug/ld.so.1 /root/valgrind/usr/lib/debug/lib/ld.so.1
      /lib/ld.so.1: symbolic link to `ld-2.7.so'
      /root/valgrind/usr/lib/debug/ld.so.1: symbolic link to `ld-2.7.so'
      /root/valgrind/usr/lib/debug/lib/ld.so.1: symbolic link to `ld-2.7.so'
      root@192.168.0.200:/# file /lib/ld-2.7.so /root/valgrind/usr/lib/debug/ld-2.7.so /root/valgrind/usr/lib/debug/lib/ld-2.7.so
      /lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, with unknown capability 0x41000000 = 0x11676e75, with unknown capability 0x10000 = 0x90401, stripped
      /root/valgrind/usr/lib/debug/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, not stripped
      /root/valgrind/usr/lib/debug/lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), statically linked, not stripped


      And if I understand how objdump works, it seems like the "must-be-redirected function" mentioned by Valgrind does indeed have an entry in the debug copy:



      root@192.168.0.200:/# objdump -x /lib/ld-2.7.so | grep strlen
      root@192.168.0.200:/# objdump -x /root/valgrind/usr/lib/debug/lib/ld-2.7.so | grep strlen
      0002f734 l O .data.rel.ro 00000004 max_capstrlen
      00018ff0 l F .text 000000b8 strlen


      And yet the --extra-debuginfo-path argument has no effect. There's a brief mention of this switch in the manual, but this is practically all the information I've been able to find about it. Am I missing something else?



      For the record, this machine cannot connect to the Internet, so letting apt / dpkg take care of things is sadly out of the question. /lib and most other system directories are also mounted read-only, so I can't just drop in a non-stripped replacement for ld-2.7.so (not that I would take such a risk).










      share|improve this question














      I'm attempting to install Valgrind on an embedded Debian-based PowerPC system. I've managed to cross-compile it successfully, but now it's complaining that it can't find debug information. I've put non-stripped copies of the relevant shared objects onto the filesystem and informed Valgrind of this directory, but it's still not working.



      Invocation:



      root@192.168.0.200:/# /root/valgrind/bin/valgrind --extra-debuginfo-path=/root/valgrind/usr/lib/debug /path/to/my_program -log
      ==6000== Memcheck, a memory error detector
      ==6000== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
      ==6000== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info
      ==6000== Command: /path/to/my_program -log
      ==6000==

      valgrind: Fatal error at startup: a function redirection
      valgrind: which is mandatory for this platform-tool combination
      valgrind: cannot be set up. Details of the redirection are:
      valgrind:
      valgrind: A must-be-redirected function
      valgrind: whose name matches the pattern: strlen
      valgrind: in an object with soname matching: ld.so.1
      valgrind: was not found whilst processing
      valgrind: symbols from the object with soname: ld.so.1
      valgrind:
      valgrind: Possible fixes: (1, short term): install glibc's debuginfo
      valgrind: package on this machine. (2, longer term): ask the packagers
      valgrind: for your Linux distribution to please in future ship a non-
      valgrind: stripped ld.so (or whatever the dynamic linker .so is called)
      valgrind: that exports the above-named function using the standard
      valgrind: calling conventions for this platform. The package you need
      valgrind: to install for fix (1) is called
      valgrind:
      valgrind: On Debian, Ubuntu: libc6-dbg
      valgrind: On SuSE, openSuSE, Fedora, RHEL: glibc-debuginfo
      valgrind:
      valgrind: Cannot continue -- exiting now. Sorry.


      The offending file, ld.so.1, is in /lib, and my non-stripped copies are in a separate directory:



      root@192.168.0.200:/# find / -name ld.so.1
      /lib/ld.so.1
      /root/valgrind/usr/lib/debug/ld.so.1
      /root/valgrind/usr/lib/debug/lib/ld.so.1


      My non-stripped copies from libc6-dbg_2.7-10ubuntu3_powerpc.deb appear to be compatible:



      root@192.168.0.200:/# file /lib/ld.so.1 /root/valgrind/usr/lib/debug/ld.so.1 /root/valgrind/usr/lib/debug/lib/ld.so.1
      /lib/ld.so.1: symbolic link to `ld-2.7.so'
      /root/valgrind/usr/lib/debug/ld.so.1: symbolic link to `ld-2.7.so'
      /root/valgrind/usr/lib/debug/lib/ld.so.1: symbolic link to `ld-2.7.so'
      root@192.168.0.200:/# file /lib/ld-2.7.so /root/valgrind/usr/lib/debug/ld-2.7.so /root/valgrind/usr/lib/debug/lib/ld-2.7.so
      /lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, with unknown capability 0x41000000 = 0x11676e75, with unknown capability 0x10000 = 0x90401, stripped
      /root/valgrind/usr/lib/debug/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), dynamically linked, not stripped
      /root/valgrind/usr/lib/debug/lib/ld-2.7.so: ELF 32-bit MSB shared object, PowerPC or cisco 4500, version 1 (SYSV), statically linked, not stripped


      And if I understand how objdump works, it seems like the "must-be-redirected function" mentioned by Valgrind does indeed have an entry in the debug copy:



      root@192.168.0.200:/# objdump -x /lib/ld-2.7.so | grep strlen
      root@192.168.0.200:/# objdump -x /root/valgrind/usr/lib/debug/lib/ld-2.7.so | grep strlen
      0002f734 l O .data.rel.ro 00000004 max_capstrlen
      00018ff0 l F .text 000000b8 strlen


      And yet the --extra-debuginfo-path argument has no effect. There's a brief mention of this switch in the manual, but this is practically all the information I've been able to find about it. Am I missing something else?



      For the record, this machine cannot connect to the Internet, so letting apt / dpkg take care of things is sadly out of the question. /lib and most other system directories are also mounted read-only, so I can't just drop in a non-stripped replacement for ld-2.7.so (not that I would take such a risk).







      debian debug powerpc valgrind






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      asked Mar 31 '14 at 20:22









      FraxtilFraxtil

      8731710




      8731710






















          1 Answer
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          0














          I had a similar issue, and adding --allow-mismatched-debuginfo=yes parameter to valgrind solved the problem.






          share|improve this answer
























          • Interesting ...

            – Pierre.Vriens
            May 10 '17 at 9:24











          • That didn't work for me. I still get "???" instead of actual debug symbols.

            – Geremia
            Sep 19 '18 at 3:40











          Your Answer








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          1 Answer
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          1 Answer
          1






          active

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          active

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          active

          oldest

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          0














          I had a similar issue, and adding --allow-mismatched-debuginfo=yes parameter to valgrind solved the problem.






          share|improve this answer
























          • Interesting ...

            – Pierre.Vriens
            May 10 '17 at 9:24











          • That didn't work for me. I still get "???" instead of actual debug symbols.

            – Geremia
            Sep 19 '18 at 3:40
















          0














          I had a similar issue, and adding --allow-mismatched-debuginfo=yes parameter to valgrind solved the problem.






          share|improve this answer
























          • Interesting ...

            – Pierre.Vriens
            May 10 '17 at 9:24











          • That didn't work for me. I still get "???" instead of actual debug symbols.

            – Geremia
            Sep 19 '18 at 3:40














          0












          0








          0







          I had a similar issue, and adding --allow-mismatched-debuginfo=yes parameter to valgrind solved the problem.






          share|improve this answer













          I had a similar issue, and adding --allow-mismatched-debuginfo=yes parameter to valgrind solved the problem.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered May 10 '17 at 9:07









          FerencFerenc

          101




          101













          • Interesting ...

            – Pierre.Vriens
            May 10 '17 at 9:24











          • That didn't work for me. I still get "???" instead of actual debug symbols.

            – Geremia
            Sep 19 '18 at 3:40



















          • Interesting ...

            – Pierre.Vriens
            May 10 '17 at 9:24











          • That didn't work for me. I still get "???" instead of actual debug symbols.

            – Geremia
            Sep 19 '18 at 3:40

















          Interesting ...

          – Pierre.Vriens
          May 10 '17 at 9:24





          Interesting ...

          – Pierre.Vriens
          May 10 '17 at 9:24













          That didn't work for me. I still get "???" instead of actual debug symbols.

          – Geremia
          Sep 19 '18 at 3:40





          That didn't work for me. I still get "???" instead of actual debug symbols.

          – Geremia
          Sep 19 '18 at 3:40


















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