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PROLOG | NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | STDIN | INPUT FILES | ENVIRONMENT VARIABLES | ASYNCHRONOUS EVENTS | STDOUT | STDERR | OUTPUT FILES | EXTENDED DESCRIPTION | EXIT STATUS | CONSEQUENCES OF ERRORS | APPLICATION USAGE | EXAMPLES | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
CXREF(1P) POSIX Programmer's Manual CXREF(1P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
cxref — generate a C-language program cross-reference table
(DEVELOPMENT)
cxref [−cs] [−o file] [−w num] [−D name[=def]]... [−I dir]...
[−U name]... file...
The cxref utility shall analyze a collection of C-language files and
attempt to build a cross-reference table. Information from #define
lines shall be included in the symbol table. A sorted listing shall
be written to standard output of all symbols (auto, static, and
global) in each file separately, or with the −c option, in
combination. Each symbol shall contain an <asterisk> before the
declaring reference.
The cxref utility shall conform to the Base Definitions volume of
POSIX.1‐2008, Section 12.2, Utility Syntax Guidelines, except that
the order of the −D, −I, and −U options (which are identical to their
interpretation by c99) is significant. The following options shall be
supported:
−c Write a combined cross-reference of all input files.
−s Operate silently; do not print input filenames.
−o file Direct output to named file.
−w num Format output no wider than num (decimal) columns. This
option defaults to 80 if num is not specified or is less
than 51.
−D Equivalent to c99.
−I Equivalent to c99.
−U Equivalent to c99.
The following operand shall be supported:
file A pathname of a C-language source file.
Not used.
The input files are C-language source files.
The following environment variables shall affect the execution of
cxref:
LANG Provide a default value for the internationalization
variables that are unset or null. (See the Base Definitions
volume of POSIX.1‐2008, Section 8.2, Internationalization
Variables for the precedence of internationalization
variables used to determine the values of locale
categories.)
LC_ALL If set to a non-empty string value, override the values of
all the other internationalization variables.
LC_COLLATE
Determine the locale for the ordering of the output.
LC_CTYPE Determine the locale for the interpretation of sequences of
bytes of text data as characters (for example, single-byte
as opposed to multi-byte characters in arguments and input
files).
LC_MESSAGES
Determine the locale that should be used to affect the
format and contents of diagnostic messages written to
standard error.
NLSPATH Determine the location of message catalogs for the
processing of LC_MESSAGES.
Default.
The standard output shall be used for the cross-reference listing,
unless the −o option is used to select a different output file.
The format of standard output is unspecified, except that the
following information shall be included:
* If the −c option is not specified, each portion of the listing
shall start with the name of the input file on a separate line.
* The name line shall be followed by a sorted list of symbols, each
with its associated location pathname, the name of the function
in which it appears (if it is not a function name itself), and
line number references.
* Each line number may be preceded by an <asterisk> ('*') flag,
meaning that this is the declaring reference. Other single-
character flags, with implementation-defined meanings, may be
included.
The standard error shall be used only for diagnostic messages.
The output file named by the −o option shall be used instead of
standard output.
None.
The following exit values shall be returned:
0 Successful completion.
>0 An error occurred.
Default.
The following sections are informative.
None.
None.
None.
None.
c99(1p)
The Base Definitions volume of POSIX.1‐2008, Chapter 8, Environment
Variables, Section 12.2, Utility Syntax Guidelines
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 CXREF(1P)