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MKSTR(1) FreeBSD General Commands Manual MKSTR(1)
NAME
mkstr - create an error message file by massaging C source
SYNOPSIS
mkstr [-] mesgfile prefix file ...
DESCRIPTION
The mkstr utility creates a file containing error messages extracted from
C source, and restructures the same C source, to utilize the created
error message file. The intent of mkstr was to reduce the size of large
programs and reduce swapping (see BUGS section below).
The mkstr utility processes each of the specified files, placing a
restructured version of the input in a file whose name consists of the
specified prefix and the original name. A typical usage of mkstr is
mkstr pistrings xx *.c
This command causes all the error messages from the C source files in the
current directory to be placed in the file pistrings and restructured
copies of the sources to be placed in files whose names are prefixed with
"xx".
Options:
- Error messages are placed at the end of the specified message
file for recompiling part of a large mkstred program.
The mkstr utility finds error messages in the source by searching for the
string `error("' in the input stream. Each time it occurs, the C string
starting at the `"' is stored in the message file followed by a null
character and a new-line character; The new source is restructured with
lseek(2) pointers into the error message file for retrieval.
char efilname = "/usr/lib/pi_strings";
int efil = -1;
error(a1, a2, a3, a4)
{
char buf[256];
if (efil < 0) {
efil = open(efilname, 0);
if (efil < 0)
err(1, "%s", efilname);
}
if (lseek(efil, (off_t)a1, SEEK_SET) < 0 ||
read(efil, buf, 256) <= 0)
err(1, "%s", efilname);
printf(buf, a2, a3, a4);
}
SEE ALSO
gencat(1), xstr(1), lseek(2)
HISTORY
The mkstr utility first appeared in 1BSD.
negligible in modern computers.
FreeBSD 14.0-RELEASE-p11 June 6, 2015 FreeBSD 14.0-RELEASE-p11