--- /dev/null
+#!/bin/sh
+# (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
+# See the copyright notice in the ACK home directory, in the file "Copyright".
+#
+# $Header$
+
+# L I N T D R I V E R
+
+PATH=/bin:/usr/bin
+
+EMLINT=/usr/dick/lint
+
+LPASS1="$EMLINT/lpass1/lnt -Dmc68000"
+LPASS2="$EMLINT/lpass2/lpass2"
+LINTLIB=${LINTLIB-$EMLINT/llib}
+
+TMP=/usr/tmp/lint1.$$
+NEW=/usr/tmp/lint2.$$
+
+trap "rm -f $TMP $NEW; exit 1" 1 2 15
+trap "rm -f $TMP $NEW; exit 0" 0
+
+set dummy $LINTFLAGS $@ # dummy as a shield for $LINTFLAGS
+shift # remove dummy
+
+LIBRARY=no
+
+# get the non-library options
+while test -n "$1"
+do
+ case "$1" in
+ -l*) # library parameter; start pass 1
+ break
+ ;;
+ -KR) # strictly Kernighan & Ritchie, pass 1
+ PARAMS1="$PARAMS1 -R"
+ shift
+ ;;
+ -[DUI]*)# Define, Undef and Include; for pass 1 only
+ PARAMS1="$PARAMS1 $1"
+ shift
+ ;;
+ -L*) # make a lint library
+ LIBRARY=`expr "$1" : '-L\(llib-l.*\)'`
+ shift
+ ;;
+ -*) # for pass 1 or pass 2
+ PARAMS1="$PARAMS1 $1"
+ PARAMS2="$PARAMS2 $1"
+ shift
+ ;;
+ *) # input file; start pass 1
+ break
+ ;;
+ esac
+done
+
+case "$LIBRARY" in
+no) # normal lint; we want its messages on stdout; this takes some doing
+ ( # intermediate file has to go to stdout for pipe connection
+ ( # pass 1: messages to stderr
+ LIBC=true # true if llib-lc to be included
+ STATNR=0 # static scope number
+
+ for F in $*
+ do
+ case $F in
+ -l) # do NOT include llib-lc
+ LIBC=
+ ;;
+ -lc) # do include llib-lc
+ LIBC=true
+ ;;
+ -l*) # include special lint library
+ cat $LINTLIB/llib$F
+ ;;
+ *.c) # a real C-file
+ STATNR=` expr $STATNR + 1 `
+ $LPASS1 -S$STATNR -Dlint $PARAMS1 $F
+ ;;
+ *) # a lint library?
+ case `basename $F` in
+ llib-l*) # yes, it is
+ cat $F
+ ;;
+ *)
+ echo $0: unknown input $F >&2
+ ;;
+ esac
+ ;;
+ esac
+ done
+
+ case "$LIBC" in
+ true) # append llib-lc
+ cat $LINTLIB/llib-lc
+ ;;
+ esac
+ ) |
+ sort -u |
+ tee /tmp/\#lint.debug |
+ ( # pass 2: divert messages to avoid interleaving
+ $LPASS2 $PARAMS2 2>$TMP
+ )
+ ) 2>&1 # messages pass 1 to stdout
+
+ # append messages pass 2
+ cat $TMP
+ ;;
+
+*) # making a lint library
+ set -e # stop at first sign of trouble
+
+ case $LIBRARY in
+ llib-l*) # OK
+ ;;
+ *)
+ echo "Lint library name does not start with 'llib-l'" >&2
+ exit 1
+ ;;
+ esac
+
+ if /bin/test ! -r $LIBRARY
+ then cp /dev/null $LIBRARY
+ fi
+
+ # collect pass 1 intermediate output for all input files
+ for F in $@
+ do
+ case $F in
+ *.c) # a C file
+ ( echo "/* LINTLIBRARY */"
+ echo "#line 1 \"$F\""
+ cat $F
+ ) >$TMP
+ $LPASS1 $PARAMS1 -Dlint -v $TMP
+ ;;
+ *) # a library?
+ case `basename $F` in
+ llib-l*) # yes, it is
+ cat $F
+ ;;
+ *)
+ echo $0: unknown input $F >&2
+ ;;
+ esac
+ ;;
+ esac
+ done >$NEW
+
+ # get the last line for each name and sort them
+ cat $LIBRARY $NEW |
+ awk -F: '
+ { entry[$1] = $0;
+ }
+ END { for (e in entry) {print entry[e];}
+ }
+ ' |
+ sort >$TMP
+
+ cp $TMP $LIBRARY
+
+esac
+
+rm -f $TMP $NEW
+
--- /dev/null
+.TH LINT 1 88/2/22
+.SH NAME
+lint \- a C program checker
+.SH SYNOPSIS
+.B lint
+[
+.B \-abhuvx \-KR
+]
+[file | libname
+.BR \-l xxx
+] ...
+.br
+.B lint
+.BR \-L libname
+[file | libname2 ] ...
+.br
+.SH DESCRIPTION
+.I Lint
+does an extensive consistency and plausibility check on a set of C
+program files.
+When it detects a doubtful construction
+(which need not be an error) it gives a warning.
+.I Lint
+does a full flow-of-control check, except that
+.BR goto s
+are not followed and non-termination of functions is not propagated.
+If, however, no
+.BR goto s
+are used, each call to a non-terminating function is followed by
+/*NOTREACHED*/ and each switch has a default clause (possibly consisting
+of /*NOTREACHED*/), the initialization state of all local variables will
+be checked correctly.
+.PP
+The second command is used to maintain lint libraries; these are ASCII files
+that contain the output of the first pass.
+A library name must start with
+.B llib\-l
+and cannot end in
+.BR .c .
+A lint user library can be created and updated by using the
+.B \-L
+option. The
+.I libname
+must be a local file and can be passed to
+.I lint
+again as a normal argument.
+.PP
+Standard libraries are searched using the
+.B \-l
+option; their format is identical to that of the user library files.
+Possibilities are
+.BR \-lm ,
+.B \-ltermcap
+and
+.BR \-lcurses .
+.B \-lc
+is default; a single
+.B \-l
+tells
+.I lint
+not to use the standard C library.
+.PP
+The
+.BR \-D ,
+.B \-U
+and
+.B \-I
+options are recognized as separate arguments. The
+.B \-KR
+option tells
+.I lint
+to check strictly according to Kernighan & Ritchie; since
+.I lint
+is trying to be helpful rather than obnoxious, this is not the default.
+.PP
+.I Lint
+understands the following additional options:
+.TP
+.B a
+Warn about conversions that may cause a loss of precision.
+.TP
+.B b
+Do not report not-reachable
+.I break
+statements.
+This flag may be useful when
+.I lint
+is run on a generated source file.
+.TP
+.B h
+Signal "null effects", possible pointer alignment problems and unexpected
+constructs. Report definitions of variables that have a scope wider than
+necessary: extern variables that are used in one file only, automatic
+variables that could be more local.
+.TP
+.B u
+Do not complain about unused and undefined functions and global variables.
+.TP
+.B v
+Do not warn about unused arguments of functions.
+.TP
+.B x
+Complain about unused external variables.
+.PP
+In some cases where the programmer knows that a construction is questionable
+but nevertheless correct, a pseudo-comment can be used to silence
+.IR lint ;
+the comments recognized are:
+.TP
+/* VARARGS\fIn\fR */
+The next function can be called with a variable number of
+arguments.
+Only check the types of the first \fIn\fR arguments.
+The \fIn\fR must follow the word VARARGS immediately.
+.TP
+/* VARARGS */
+Same as /* VARARGS0 */
+.TP
+/* ARGSUSED */
+Do not warn about arguments not used in the next function
+(see also the \-\fBv\fR option).
+.TP
+/* NOTREACHED */
+This tells
+.I lint
+that the flow of control "cannot reach" this comment.
+This is a way to tell
+.I lint
+that a statement never "returns".
+.TP
+/* LINTLIBRARY */
+The following definitions are assumed to be part of a library.
+It suppresses complaints about unused functions and variables
+and is used in the creation of lint libraries.
+.SH FILES
+.IP ???/lnt 35
+first pass
+.IP ???/lpass2/lpass2
+second pass
+.IP ???/llib/llib\-l*
+lint libraries
+.SH SEE ALSO
+cem(1)
+.br
+Frans Kunst,
+.I Lint, a C Program Checker
+.SH BUGS
+Conflicting options in the command line are not detected.
+.br
+After a label, all automatic variables are assumed initialized.
+.br
+Initializations hidden inside for statements are sometimes overlooked.
+.SH AUTHOR
+Frans Kunst, Vrije Universiteit, Amsterdam.
public / ack.git / commitdiff