llvm-symbolizer - convert addresses into source code locations — LLVM 5 documentation

# llvm-symbolizer - convert addresses into source code locations

## SYNOPSIS

llvm-symbolizer [options]

## DESCRIPTION

llvm-symbolizer reads object file names and addresses from standard input and prints corresponding source code locations to standard output. If object file is specified in command line, llvm-symbolizer processes only addresses from standard input, the rest is output verbatim. This program uses debug info sections and symbol table in the object files.

## EXAMPLE

    $ cat addr.txt
    a.out 0x4004f4
    /tmp/b.out 0x400528
    /tmp/c.so 0x710
    /tmp/mach_universal_binary:i386 0x1f84
    /tmp/mach_universal_binary:x86_64 0x100000f24
    $ llvm-symbolizer < addr.txt
    main
    /tmp/a.cc:4

    f(int, int)
    /tmp/b.cc:11

    h_inlined_into_g
    /tmp/header.h:2
    g_inlined_into_f
    /tmp/header.h:7
    f_inlined_into_main
    /tmp/source.cc:3
    main
    /tmp/source.cc:8

    _main
    /tmp/source_i386.cc:8

    _main
    /tmp/source_x86_64.cc:8
    $ cat addr2.txt
    0x4004f4
    0x401000
    $ llvm-symbolizer -obj=a.out < addr2.txt
    main
    /tmp/a.cc:4

    foo(int)
    /tmp/a.cc:12
    $cat addr.txt
    0x40054d
    $llvm-symbolizer -inlining -print-address -pretty-print -obj=addr.exe < addr.txt
    0x40054d: inc at /tmp/x.c:3:3
     (inlined by) main at /tmp/x.c:9:0
    $llvm-symbolizer -inlining -pretty-print -obj=addr.exe < addr.txt
    inc at /tmp/x.c:3:3
     (inlined by) main at /tmp/x.c:9:0

## OPTIONS

`-obj```

  Path to object file to be symbolized.

`-functions``=[none|short|linkage]`

  Specify the way function names are printed (omit function name, print short function name, or print full linkage name, respectively). Defaults to `linkage`.

`-use-symbol-table```

  Prefer function names stored in symbol table to function names in debug info sections. Defaults to true.

`-demangle```

  Print demangled function names. Defaults to true.

`-inlining```

  If a source code location is in an inlined function, prints all the inlnied frames. Defaults to true.

`-default-arch```

  If a binary contains object files for multiple architectures (e.g. it is a Mach-O universal binary), symbolize the object file for a given architecture. You can also specify architecture by writing `binary_name:arch_name` in the input (see example above). If architecture is not specified in either way, address will not be symbolized. Defaults to empty string.

`-dsym-hint``=<path/to/file.dSYM>`

  (Darwin-only flag). If the debug info for a binary isn’t present in the default location, look for the debug info at the .dSYM path provided via the `-dsym-hint` flag. This flag can be used multiple times.

`-print-address```

  Print address before the source code location. Defaults to false.

`-pretty-print```

  Print human readable output. If `-inlining` is specified, enclosing scope is prefixed by (inlined by). Refer to listed examples.

## EXIT STATUS

llvm-symbolizer returns 0. Other exit codes imply internal program error.