cxref(1) cxref(1)
NAME
cxref - generate C program cross-reference
SYNOPSIS
cxref [options] files
DESCRIPTION
The cxref command analyzes a collection of C files and builds a
cross-reference table. cxref uses a special version of cc to include
#define'd information in its symbol table. It generates a list of
all symbols (auto, static, and global) in each individual file, or,
with the -c option, in combination. The table includes four fields:
NAME, FILE, FUNCTION, and LINE. The line numbers appearing in the
LINE field also show reference marks as appropriate. The reference
marks include:
assignment =
declaration -
definition *
If no reference marks appear, you can assume a general reference.
OPTIONS
cxref interprets the -D, -I, -U options in the same manner that cc
does. In addition, cxref interprets the following options:
-c Combine the source files into a single report. Without the
-c option, cxref generates a separate report for each file on
the command line.
-d Disables printing declarations, making the report easier to
read.
-l Does not print local variables. Prints only global and file
scope statistics.
-o file Direct output to file.
-s Operates silently; does not print input file names.
-t Format listing for 80-column width.
-wnum Width option that formats output no wider than num (decimal)
columns. This option will default to 80 if num is not
specified or is less than 51.
-C Runs only the first pass of cxref, creating a .cx file that
can later be passed to cxref. This is similar to the -c
option of cc or lint.
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-F Prints the full path of the referenced file names.
-Lcols Modifies the number of columns in the LINE field. If you do
not specify a number, cxref defaults to five columns.
-V Prints version information on the standard error.
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-Wname,file, function, line
Changes the default width of at least one field. The default
widths are:
Field Characters
NAME 15
FILE 13
FUNCTION 15
LINE 20 (4 per column)
FILES
TMPDIR/tcx.* temporary files
TMPDIR/cx.* temporary files
LIBDIR/xref accessed by cxref
LIBDIR usually /usr/ccs/lib
TMPDIR usually /var/tmp but can be redefined by setting
the environment variable TMPDIR [see tempnam in
tmpnam(3S)].
EXAMPLE
a.c
1 main()
2 {
3 int i;
4 extern char c;
5
6 i=65;
7 c=(char)i;
8 }
Resulting cross-reference table:
NAME FILE FUNCTION LINE
c a.c --- 4- 7=
i a.c main 3* 6= 7
main a.c --- 2*
m68k predefined --- 0*
m88k predefined --- 0*
unix predefined --- 0*
SEE ALSO
cc(1), lint(1).
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DIAGNOSTICS
Error messages usually mean you cannot compile the files.
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