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addr2line(1)

ADDR2LINE(1)                 GNU Development Tools                ADDR2LINE(1)

NAME
       addr2line - convert addresses or symbol+offset into file names and line
       numbers

SYNOPSIS
       addr2line [-a|--addresses]
                 [-b bfdname|--target=bfdname]
                 [-C|--demangle[=style]]
                 [-r|--no-recurse-limit]
                 [-R|--recurse-limit]
                 [-e filename|--exe=filename]
                 [-f|--functions] [-s|--basename]
                 [-i|--inlines]
                 [-p|--pretty-print]
                 [-j|--section=name]
                 [-H|--help] [-V|--version]
                 [addr addr ...]

DESCRIPTION
       addr2line translates addresses or symbol+offset into file names and
       line numbers.  Given an address or symbol+offset in an executable or an
       offset in a section of a relocatable object, it uses the debugging
       information to figure out which file name and line number are
       associated with it.

       The executable or relocatable object to use is specified with the -e
       option.  The default is the file a.out.  The section in the relocatable
       object to use is specified with the -j option.

       addr2line has two modes of operation.

       In the first, hexadecimal addresses or symbol+offset are specified on
       the command line, and addr2line displays the file name and line number
       for each address.

       In the second, addr2line reads hexadecimal addresses or symbol+offset
       from standard input, and prints the file name and line number for each
       address on standard output.  In this mode, addr2line may be used in a
       pipe to convert dynamically chosen addresses.

       The format of the output is FILENAME:LINENO.  By default each input
       address generates one line of output.

       Two options can generate additional lines before each FILENAME:LINENO
       line (in that order).

       If the -a option is used then a line with the input address is
       displayed.

       If the -f option is used, then a line with the FUNCTIONNAME is
       displayed.  This is the name of the function containing the address.

       One option can generate additional lines after the FILENAME:LINENO
       line.

       If the -i option is used and the code at the given address is present
       there because of inlining by the compiler then additional lines are
       displayed afterwards.  One or two extra lines (if the -f option is
       used) are displayed for each inlined function.

       Alternatively if the -p option is used then each input address
       generates a single, long, output line containing the address, the
       function name, the file name and the line number.  If the -i option has
       also been used then any inlined functions will be displayed in the same
       manner, but on separate lines, and prefixed by the text (inlined by).

       If the file name or function name can not be determined, addr2line will
       print two question marks in their place.  If the line number can not be
       determined, addr2line will print 0.

       When symbol+offset is used, +offset is optional, except when the symbol
       is ambigious with a hex number. The resolved symbols can be mangled or
       unmangled, except unmangled symbols with + are not allowed.

OPTIONS
       The long and short forms of options, shown here as alternatives, are
       equivalent.

       -a
       --addresses
           Display  the address before the function name, file and line number
           information.  The address is printed with a  0x  prefix  to  easily
           identify it.

       -b bfdname
       --target=bfdname
           Specify  that  the  object-code  format  for  the  object  files is
           bfdname.

       -C
       --demangle[=style]
           Decode (demangle) low-level symbol  names  into  user-level  names.
           Besides  removing  any  initial underscore prepended by the system,
           this makes C++ function names readable.  Different  compilers  have
           different  mangling  styles. The optional demangling style argument
           can be used to choose an  appropriate  demangling  style  for  your
           compiler.

       -e filename
       --exe=filename
           Specify  the  name  of the executable for which addresses should be
           translated.  The default file is a.out.

       -f
       --functions
           Display function names as well as file and line number information.

       -s
       --basenames
           Display only the base of each file name.

       -i
       --inlines
           If the address belongs to a function that was inlined,  the  source
           information  for all enclosing scopes back to the first non-inlined
           function will also be printed.   For  example,  if  "main"  inlines
           "callee1"  which  inlines "callee2", and address is from "callee2",
           the source information  for  "callee1"  and  "main"  will  also  be
           printed.

       -j
       --section
           Read  offsets relative to the specified section instead of absolute
           addresses.

       -p
       --pretty-print
           Make the output more human friendly: each location are  printed  on
           one  line.   If  option  -i  is  specified, lines for all enclosing
           scopes are prefixed with (inlined by).

       -r
       -R
       --recurse-limit
       --no-recurse-limit
       --recursion-limit
       --no-recursion-limit
           Enables or disables a limit on the amount  of  recursion  performed
           whilst  demangling  strings.  Since the name mangling formats allow
           for an infinite level of recursion it is possible to create strings
           whose decoding will exhaust the amount of stack space available  on
           the  host  machine,  triggering a memory fault.  The limit tries to
           prevent this from happening by restricting recursion to 2048 levels
           of nesting.

           The default is for this limit to be enabled, but disabling  it  may
           be  necessary  in  order to demangle truly complicated names.  Note
           however  that  if  the  recursion  limit  is  disabled  then  stack
           exhaustion is possible and any bug reports about such an event will
           be rejected.

           The  -r option is a synonym for the --no-recurse-limit option.  The
           -R option is a synonym for the --recurse-limit option.

           Note this option is only effective if the -C or  --demangle  option
           has been enabled.

       @file
           Read command-line options from file.  The options read are inserted
           in  place of the original @file option.  If file does not exist, or
           cannot be read, then the option will be treated literally, and  not
           removed.

           Options   in  file  are  separated  by  whitespace.   A  whitespace
           character may be included in an option by  surrounding  the  entire
           option in either single or double quotes.  Any character (including
           a  backslash)  may  be  included  by  prefixing the character to be
           included with a backslash.  The file may itself contain  additional
           @file options; any such options will be processed recursively.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:

       box;  cbp-1  |  cbp-1  l  |  l  .   ATTRIBUTE  TYPE ATTRIBUTE  VALUE  =
       Availability   developer/gnu-binutils = Stability Uncommitted

SEE ALSO
       Info entries for binutils.

COPYRIGHT
       Copyright (c) 1991-2025 Free Software Foundation, Inc.

       Permission is granted to copy, distribute and/or modify  this  document
       under  the  terms of the GNU Free Documentation License, Version 1.3 or
       any later version published by the Free Software  Foundation;  with  no
       Invariant  Sections,  with no Front-Cover Texts, and with no Back-Cover
       Texts.  A copy of the license is included in the section entitled  "GNU
       Free Documentation License".



NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This software was built from source available at:
       https://github.com/oracle/solaris-userland

       The original community source was downloaded from:
       https://sourceware.org/pub/binutils/releases/binutils-2.45.tar.xz

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/binutils.

binutils-2.45                     2025-12-01                      ADDR2LINE(1)
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