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cxref(1)
cxref(1) User Commands 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
Run 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.
-c
Combine the source files into a single report. Without the -c
option, cxref generates a separate report for each file on the com‐
mand line.
-d
Disable printing declarations, making the report easier to read.
-F
Print the full path of the referenced file names.
-Lcols
Modify the number of columns in the LINE field. If you do not spec‐
ify -L, cxref defaults to five columns.
-l
Do not print local variables. Print only global and file scope sta‐
tistics.
-o file
Direct output to file.
-R
Include referenced functions in the cross-reference list..
-s
Operate silently; do not print input file names.
-t
Format listing for 80-column width.
-V
Print version information on the standard error.
-Wname,file,function,line
Change the default width of all fields. You must supply a value for
all four columns. The default widths are:
Field Characters
NAME 15
FILE 13
FUNCTION 15
LINE 20 (4 per column)
-wnum
Format output no wider than num (decimal) columns. If -w is not
specified, or if num is less than 51, the width will default to 80
columns.
EXAMPLES
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*
ENVIRONMENT VARIABLES
TMPDIR
cxref writes temporary files to the directory set by this environ‐
mental variable. If TMPDIR is not set, cxref uses /var/tmp [see
tempnam in tmpnam(3S)].
FILES
TMPDIR/tcx.* temporary files
TMPDIR/cx.* temporary files
SEE ALSO
cc(1), lint(1)
DIAGNOSTICS
Error messages usually mean you cannot compile the files.
Studio 12.6 August 2000 cxref(1)