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Questions tagged [nm]

nm is a POSIX tool that displays symbol names and other such information of an object file to stdout

230 questions
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nm: shared library symbol appearing twice or once

I have a shared library (libARWrapper.so) which includes the following two entries, shown using nm (nm -D --defined-only libARWrapper.so) 00075854 T Java_org_artoolkit_ar_base_NativeInterface_arwAcceptVideoImage 00074d54 T…
Jethro
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Using awk to iterate unix command nm and sum output through multiple files

I am currently working on a script that will look through the output of nm and sum the values of column $1 using the following read $filename nm --demangle --size-sort --radix=d ~/object/$filename | { awk '{ sum+= $1 } END { print "Total =" sum…
Euler1707
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Interpreting nm output after rejected app

my app was rejected by Apple, because somehow my app uses private API's. Apple said that my app uses framework: '/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation': CFHashBytes I couldn't find anything in the code, so I…
inexcitus
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Apple app store rejection; How to find which lib has string referencing "transition:didComplete:"

We got rejected by Apple. Happens all the time right? But this time we are a bit stumped. The old ways of sussing this out aren't producing a clue to the solution. From Apple: 5 PERFORMANCE: SOFTWARE REQUIREMENTS Performance - 2.5.1 Your app…
Hunter-Orionnoir
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Given two Linux static libraries, how to tell if one depends on the other?

I have a bunch of .a files whose generation process is not controlled by me, nor are their sources. When I use them for linking, I want to know their dependencies (libA.a depends on libB.a if there is some symbol undefined in libA.a but defined in…
Kan Li
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nm output of show the shared library's version is incorrect

I just have built a shared library, but when I use nm command to look the dependency the output is as below $ nm -a libgio-2.0.so.0.2701.0 | grep ZLIB U deflateSetHeader@@ZLIB_1.2.2 U inflateGetHeader@@ZLIB_1.2.2 I don't know the mean…
Peng Li
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Skip address output when using GNU nm utility

Is there any ideas how to skip address output while outputting via nm? Here is an excerpt from nm output: 0040cb94 T _fwrite 0040c8e0 t _get_ptr_from_atom 00410948 t _get_ptr_from_atom 00412fac T _GetAtomNameA@12 00412ffc T…
Nusrat Nuriyev
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Find member by offset

I have a (big) class and an offset into that class. How can I efficiently find the member defined at that offset? Example: struct Dummy { int a, b, c; } Given an offset of 4 and assuming sizeof(int) == 4, I would like to get 'b'. Obviously I…
mbschenkel
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How to see executable content under AIX

I have a question about executables and C. If you had to know the content (the version of each .c file written in a commentary) of an executable BUT you just have the executable, you don't have the sources. How do you proceed ? I've seen the "nm"…
Ežekiel
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GCC's nm lists multiple entries for method

Is it normal to have multiple entries for a single method listed out by nm? I ran the following: nm -C myObjectFile.o | grep MyObject:: and received the following: ... stuff... ... stuff... 0000027e0 T MyObject::MyObject(MyDepend*) 0000027e0 T…
DavidZemon
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nm versus gdb break

I am working on Ubuntu 14.04 LTS. I have an executable file exec compiled from file.c. The file.c makes use of functions from a static library. For example, let's says that fubar() is a function of the static library that is used in file.c. This is…
progammer
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How to use nm or objdump and/or any other available tool to pinpoint an offending function/method in a .so file?

The issue: migration issues from RH5 (gcc 4.1.2 and GLIBC 2.5) to RH6 (gcc 4.4.7 and GLIBC 2.12) Details: I am migrating a big project from RH5 (gcc 4.1.2) to RH6 (gcc 4.4.7) and everything compiles and links without any hiccups. The code compiled…
Wlamir Mello
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How to access library’s symbol table, to find the routine symbol names

I need to identify the addresses of the crypto routines used in a linux executable that links to the OpenSSL library. How can I access the openssl symbol table? address routine name 4099bc0 BF_cbc_encrypt() 40e4463 bf_cbc_cipher() How to…
heaven
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Static member of template base class doesn't get exported to shared library

I have a class 'ModelManager' which is derived from a template class 'TModelManager'. Their declaration is as follows: template class TModelManager { protected: static…
Silverlan
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What does it mean when Boost.Exception symbols show up in 'nm' output? Will they cause ODR violations?

I'm running this on a 3rd party statically linked library. I thought that since it's a header only library (except on some MSVC versions), it wouldn't show up. Maybe I'm misunderstanding what nm is supposed to show. What I really want to know is if…
Matt Chambers
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