Import of NetBSD's (x)lint, snapshotted at 2002-3-3.

8 files changed, 853 insertions, 0 deletions

diff --git a/usr.bin/xlint/common/emit.c b/usr.bin/xlint/common/emit.c
new file mode 100644
index 0000000..9413433
--- /dev/null
+++ b/usr.bin/xlint/common/emit.c
@@ -0,0 +1,234 @@
+/*	$NetBSD: emit.c,v 1.2 2002/01/21 19:49:51 tv Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Jochen Pohl
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Jochen Pohl for
+ *	The NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(__RCSID) && !defined(lint)
+__RCSID("$NetBSD: emit.c,v 1.2 2002/01/21 19:49:51 tv Exp $");
+#endif
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "lint.h"
+
+/* name and handle of output file */
+static	const	char *loname;
+static	FILE	*lout;
+
+/* output buffer data */
+ob_t	ob;
+
+static	void	outxbuf(void);
+
+
+/*
+ * initialize output
+ */
+void
+outopen(const char *name)
+{
+
+	loname = name;
+
+	/* Open output file */
+	if ((lout = fopen(name, "w")) == NULL)
+		err(1, "cannot open '%s'", name);
+
+	/* Create output buffer */
+	ob.o_len = 1024;
+	ob.o_end = (ob.o_buf = ob.o_nxt = xmalloc(ob.o_len)) + ob.o_len;
+}
+
+/*
+ * flush output buffer and close file
+ */
+void
+outclose(void)
+{
+
+	outclr();
+	if (fclose(lout) == EOF)
+		err(1, "cannot close '%s'", loname);
+}
+
+/*
+ * resize output buffer
+ */
+static void
+outxbuf(void)
+{
+	ptrdiff_t coffs;
+
+	coffs = ob.o_nxt - ob.o_buf;
+	ob.o_len *= 2;
+	ob.o_end = (ob.o_buf = xrealloc(ob.o_buf, ob.o_len)) + ob.o_len;
+	ob.o_nxt = ob.o_buf + coffs;
+}
+
+/*
+ * reset output buffer
+ * if it is not empty, it is flushed
+ */
+void
+outclr(void)
+{
+	size_t	sz;
+
+	if (ob.o_buf != ob.o_nxt) {
+		outchar('\n');
+		sz = ob.o_nxt - ob.o_buf;
+		if (sz > ob.o_len)
+			errx(1, "internal error: outclr() 1");
+		if (fwrite(ob.o_buf, sz, 1, lout) != 1)
+			err(1, "cannot write to %s", loname);
+		ob.o_nxt = ob.o_buf;
+	}
+}
+
+/*
+ * write a character to the output buffer
+ */
+void
+outchar(int c)
+{
+
+	if (ob.o_nxt == ob.o_end)
+		outxbuf();
+	*ob.o_nxt++ = (char)c;
+}
+
+/*
+ * write a character to the output buffer, qouted if necessary
+ */
+void
+outqchar(int c)
+{
+
+	if (isprint(c) && c != '\\' && c != '"' && c != '\'') {
+		outchar(c);
+	} else {
+		outchar('\\');
+		switch (c) {
+		case '\\':
+			outchar('\\');
+			break;
+		case '"':
+			outchar('"');
+			break;
+		case '\'':
+			outchar('\'');
+			break;
+		case '\b':
+			outchar('b');
+			break;
+		case '\t':
+			outchar('t');
+			break;
+		case '\n':
+			outchar('n');
+			break;
+		case '\f':
+			outchar('f');
+			break;
+		case '\r':
+			outchar('r');
+			break;
+		case '\v':
+			outchar('v');
+			break;
+		case '\a':
+			outchar('a');
+			break;
+		default:
+			outchar((((u_int)c >> 6) & 07) + '0');
+			outchar((((u_int)c >> 3) & 07) + '0');
+			outchar((c & 07) + '0');
+			break;
+		}
+	}
+}
+
+/*
+ * write a strint to the output buffer
+ * the string must not contain any characters which
+ * should be quoted
+ */
+void
+outstrg(const char *s)
+{
+
+	while (*s != '\0') {
+		if (ob.o_nxt == ob.o_end)
+			outxbuf();
+		*ob.o_nxt++ = *s++;
+	}
+}
+
+/*
+ * write an integer value to toe output buffer
+ */
+void
+outint(int i)
+{
+
+	if ((ob.o_end - ob.o_nxt) < 3 * sizeof (int))
+		outxbuf();
+	ob.o_nxt += sprintf(ob.o_nxt, "%d", i);
+}
+
+/*
+ * write the name of a symbol to the output buffer
+ * the name is preceded by its length
+ */
+void
+outname(const char *name)
+{
+
+	if (name == NULL)
+		errx(1, "internal error: outname() 1");
+	outint((int)strlen(name));
+	outstrg(name);
+}
+
+/*
+ * write the name of the .c source
+ */
+void
+outsrc(const char *name)
+{
+
+	outclr();
+	outchar('S');
+	outstrg(name);
+}
diff --git a/usr.bin/xlint/common/externs.h b/usr.bin/xlint/common/externs.h
new file mode 100644
index 0000000..8c454b4
--- /dev/null
+++ b/usr.bin/xlint/common/externs.h
@@ -0,0 +1,66 @@
+/*	$NetBSD: externs.h,v 1.1 2002/01/18 20:39:23 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Jochen Pohl
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Jochen Pohl for
+ *	The NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * main[12].c
+ */
+extern	int	pflag;
+
+/*
+ * inittyp.c
+ */
+extern	void	inittyp(void);
+
+/*
+ * mem.c
+ */
+extern	void	*xmalloc(size_t);
+extern	void	*xcalloc(size_t, size_t);
+extern	void	*xrealloc(void *, size_t);
+extern	char	*xstrdup(const char *);
+extern	void	nomem(void);
+
+/*
+ * emit.c
+ */
+extern	ob_t	ob;
+
+extern	void	outopen(const char *);
+extern	void	outclose(void);
+extern	void	outclr(void);
+extern	void	outchar(int);
+extern	void	outqchar(int);
+extern	void	outstrg(const char *);
+extern	void	outint(int);
+extern	void	outname(const char *);
+extern	void	outsrc(const char *);
diff --git a/usr.bin/xlint/common/ilp32.h b/usr.bin/xlint/common/ilp32.h
new file mode 100644
index 0000000..5eb5f03
--- /dev/null
+++ b/usr.bin/xlint/common/ilp32.h
@@ -0,0 +1,59 @@
+/*	$NetBSD: ilp32.h,v 1.1 2002/01/18 20:39:23 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Type sizes for IPL32 platforms (int, long, pointer: 32-bit)
+ */
+
+#define	CHAR_SIZE	(CHAR_BIT)
+#define	SHORT_SIZE	(2 * CHAR_BIT)
+#define	INT_SIZE	(4 * CHAR_BIT)
+#define	LONG_SIZE	(4 * CHAR_BIT)
+#define	QUAD_SIZE	(8 * CHAR_BIT)
+#define	PTR_SIZE	(4 * CHAR_BIT)
+
+#define	TARG_INT_MAX	((int32_t) (((uint32_t) -1) >> 1))
+#define	TARG_INT_MIN	((-TARG_INT_MAX) - 1)
+#define	TARG_UINT_MAX	((uint32_t) -1)
+
+#define	TARG_LONG_MAX	TARG_INT_MAX
+#define	TARG_LONG_MIN	TARG_INT_MIN
+#define	TARG_ULONG_MAX	TARG_UINT_MAX
+
+#define	TARG_QUAD_MAX	((int64_t) (((uint64_t) -1) >> 1))
+#define	TARG_QUAD_MIN	((-TARG_QUAD_MAX) - 1)
+#define	TARG_UQUAD_MAX	((uint64_t) -1)
diff --git a/usr.bin/xlint/common/inittyp.c b/usr.bin/xlint/common/inittyp.c
new file mode 100644
index 0000000..b0958bf
--- /dev/null
+++ b/usr.bin/xlint/common/inittyp.c
@@ -0,0 +1,133 @@
+/*	$NetBSD: inittyp.c,v 1.3 2002/01/30 06:55:02 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Jochen Pohl
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Jochen Pohl for
+ *	The NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(__RCSID) && !defined(lint)
+__RCSID("$NetBSD: inittyp.c,v 1.3 2002/01/30 06:55:02 thorpej Exp $");
+#endif
+
+#include <ctype.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#include "lint.h"
+
+/* various type information */
+ttab_t	ttab[NTSPEC];
+
+void
+inittyp(void)
+{
+	int	i;
+	static const struct {
+		tspec_t	it_tspec;
+		ttab_t	it_ttab;
+	} ittab[NTSPEC] = {
+		{ SIGNED,   { 0, 0,
+				      SIGNED, UNSIGN,
+				      0, 0, 0, 0, 0, "signed" } },
+		{ UNSIGN,   { 0, 0,
+				      SIGNED, UNSIGN,
+				      0, 0, 0, 0, 0, "unsigned" } },
+		{ CHAR,	    { CHAR_SIZE, CHAR_BIT,
+				      SCHAR, UCHAR,
+				      1, 0, 0, 1, 1, "char" } },
+		{ SCHAR,    { CHAR_SIZE, CHAR_BIT,
+				      SCHAR, UCHAR,
+				      1, 0, 0, 1, 1, "signed char" } },
+		{ UCHAR,    { CHAR_SIZE, CHAR_BIT,
+				      SCHAR, UCHAR,
+				      1, 1, 0, 1, 1, "unsigned char" } },
+		{ SHORT,    { SHORT_SIZE, 2 * CHAR_BIT,
+				      SHORT, USHORT,
+				      1, 0, 0, 1, 1, "short" } },
+		{ USHORT,   { SHORT_SIZE, 2 * CHAR_BIT,
+				      SHORT, USHORT,
+				      1, 1, 0, 1, 1, "unsigned short" } },
+		{ INT,      { INT_SIZE, 3 * CHAR_BIT,
+				      INT, UINT,
+				      1, 0, 0, 1, 1, "int" } },
+		{ UINT,     { INT_SIZE, 3 * CHAR_BIT,
+				      INT, UINT,
+				      1, 1, 0, 1, 1, "unsigned int" } },
+		{ LONG,     { LONG_SIZE, 4 * CHAR_BIT,
+				      LONG, ULONG,
+				      1, 0, 0, 1, 1, "long" } },
+		{ ULONG,    { LONG_SIZE, 4 * CHAR_BIT,
+				      LONG, ULONG,
+				      1, 1, 0, 1, 1, "unsigned long" } },
+		{ QUAD,     { QUAD_SIZE, 8 * CHAR_BIT,
+				      QUAD, UQUAD,
+				      1, 0, 0, 1, 1, "long long" } },
+		{ UQUAD,    { QUAD_SIZE, 8 * CHAR_BIT,
+				      QUAD, UQUAD,
+				      1, 1, 0, 1, 1, "unsigned long long" } },
+		{ FLOAT,    { FLOAT_SIZE, 4 * CHAR_BIT,
+				      FLOAT, FLOAT,
+				      0, 0, 1, 1, 1, "float" } },
+		{ DOUBLE,   { DOUBLE_SIZE, 8 * CHAR_BIT,
+				      DOUBLE, DOUBLE,
+				      0, 0, 1, 1, 1, "double" } },
+		{ LDOUBLE,  { LDOUBLE_SIZE, 10 * CHAR_BIT,
+				      LDOUBLE, LDOUBLE,
+				      0, 0, 1, 1, 1, "long double" } },
+		{ VOID,     { -1, -1,
+				      VOID, VOID,
+				      0, 0, 0, 0, 0, "void" } },
+		{ STRUCT,   { -1, -1,
+				      STRUCT, STRUCT,
+				      0, 0, 0, 0, 0, "struct" } },
+		{ UNION,    { -1, -1,
+				      UNION, UNION,
+				      0, 0, 0, 0, 0, "union" } },
+		{ ENUM,     { ENUM_SIZE, 3 * CHAR_BIT,
+				      ENUM, ENUM,
+				      1, 0, 0, 1, 1, "enum" } },
+		{ PTR,      { PTR_SIZE, 4 * CHAR_BIT,
+				      PTR, PTR,
+				      0, 1, 0, 0, 1, "pointer" } },
+		{ ARRAY,    { -1, -1,
+				      ARRAY, ARRAY,
+				      0, 0, 0, 0, 0, "array" } },
+		{ FUNC,     { -1, -1,
+				      FUNC, FUNC,
+				      0, 0, 0, 0, 0, "function" } },
+	};
+
+	for (i = 0; i < sizeof (ittab) / sizeof (ittab[0]); i++)
+		STRUCT_ASSIGN(ttab[ittab[i].it_tspec], ittab[i].it_ttab);
+	if (!pflag) {
+		for (i = 0; i < NTSPEC; i++)
+			ttab[i].tt_psz = ttab[i].tt_sz;
+	}
+}
diff --git a/usr.bin/xlint/common/lint.h b/usr.bin/xlint/common/lint.h
new file mode 100644
index 0000000..c73f73c
--- /dev/null
+++ b/usr.bin/xlint/common/lint.h
@@ -0,0 +1,126 @@
+/*	$NetBSD: lint.h,v 1.3 2002/01/31 22:44:00 tv Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Jochen Pohl
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Jochen Pohl for
+ *	The NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#else
+#define HAVE_DECL_SYS_SIGNAME 1
+#endif
+
+#include <sys/types.h>
+#include <stddef.h>
+#include <err.h>
+#include <inttypes.h>
+#include <stdio.h>
+
+#include "param.h"
+
+/*
+ * Type specifiers, used in type structures (type_t) and otherwere.
+ */
+typedef enum {
+	NOTSPEC = 0,
+	SIGNED,		/* keyword "signed", only used in the parser */
+	UNSIGN,		/* keyword "unsigned", only used in the parser */
+	CHAR,		/* char */
+	SCHAR,		/* signed char */
+	UCHAR,		/* unsigned char */
+	SHORT,		/* (signed) short */
+	USHORT,		/* unsigned short */
+	INT,		/* (signed) int */
+	UINT,		/* unsigned int */
+	LONG,		/* (signed) long */
+	ULONG,		/* unsigned long */
+	QUAD,		/* (signed) long long */
+	UQUAD,		/* unsigned long long */
+	FLOAT,		/* float */
+	DOUBLE,		/* double or, with tflag, long float */
+	LDOUBLE,	/* long double */
+	VOID,		/* void */
+	STRUCT,		/* structure tag */
+	UNION,		/* union tag */
+	ENUM,		/* enum tag */
+	PTR,		/* pointer */
+	ARRAY,		/* array */
+	FUNC,		/* function */
+	NTSPEC
+} tspec_t;
+
+/*
+ * size of types, name and classification
+ */
+typedef	struct {
+	int	tt_sz;			/* size in bits */
+	int	tt_psz;			/* size, different from tt_sz
+					   if pflag is set */
+	tspec_t	tt_styp;		/* signed counterpart */
+	tspec_t	tt_utyp;		/* unsigned counterpart */
+	u_int	tt_isityp : 1;		/* 1 if integer type */
+	u_int	tt_isutyp : 1;		/* 1 if unsigned integer type */
+	u_int	tt_isftyp : 1;		/* 1 if floating point type */
+	u_int	tt_isatyp : 1;		/* 1 if arithmetic type */
+	u_int	tt_issclt : 1;		/* 1 if scalar type */
+	char	*tt_name;		/* Bezeichnung des Typs */
+} ttab_t;
+
+#define size(t)		(ttab[t].tt_sz)
+#define psize(t)	(ttab[t].tt_psz)
+#define styp(t)		(ttab[t].tt_styp)
+#define utyp(t)		(ttab[t].tt_utyp)
+#define isityp(t)	(ttab[t].tt_isityp)
+#define isutyp(t)	(ttab[t].tt_isutyp)
+#define isftyp(t)	(ttab[t].tt_isftyp)
+#define isatyp(t)	(ttab[t].tt_isatyp)
+#define issclt(t)	(ttab[t].tt_issclt)
+
+extern	ttab_t	ttab[];
+
+
+typedef	enum {
+	NODECL,			/* until now not declared */
+	DECL,			/* declared */
+	TDEF,			/* tentative defined */
+	DEF			/* defined */
+} def_t;
+
+/*
+ * Following structure contains some data used for the output buffer.
+ */
+typedef	struct	ob {
+	char	*o_buf;		/* buffer */
+	char	*o_end;		/* first byte after buffer */
+	size_t	o_len;		/* length of buffer */
+	char	*o_nxt;		/* next free byte in buffer */
+} ob_t;
+
+#include "externs.h"
diff --git a/usr.bin/xlint/common/lp64.h b/usr.bin/xlint/common/lp64.h
new file mode 100644
index 0000000..cd88700
--- /dev/null
+++ b/usr.bin/xlint/common/lp64.h
@@ -0,0 +1,59 @@
+/*	$NetBSD: lp64.h,v 1.1 2002/01/18 20:39:23 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Type sizes for LP64 platforms (long, pointer: 64-bit)
+ */
+
+#define	CHAR_SIZE	(CHAR_BIT)
+#define	SHORT_SIZE	(2 * CHAR_BIT)
+#define	INT_SIZE	(4 * CHAR_BIT)
+#define	LONG_SIZE	(8 * CHAR_BIT)
+#define	QUAD_SIZE	(8 * CHAR_BIT)
+#define	PTR_SIZE	(8 * CHAR_BIT)
+
+#define	TARG_INT_MAX	((int32_t) (((uint32_t) -1) >> 1))
+#define	TARG_INT_MIN	((-TARG_INT_MAX) - 1)
+#define	TARG_UINT_MAX	((uint32_t) -1)
+
+#define	TARG_QUAD_MAX	((int64_t) (((uint64_t) -1) >> 1))
+#define	TARG_QUAD_MIN	((-TARG_QUAD_MAX) - 1)
+#define	TARG_UQUAD_MAX	((uint64_t) -1)
+
+#define	TARG_LONG_MAX	TARG_QUAD_MAX
+#define	TARG_LONG_MIN	TARG_QUAD_MIN
+#define	TARG_ULONG_MAX	TARG_UQUAD_MAX
diff --git a/usr.bin/xlint/common/mem.c b/usr.bin/xlint/common/mem.c
new file mode 100644
index 0000000..2621081
--- /dev/null
+++ b/usr.bin/xlint/common/mem.c
@@ -0,0 +1,88 @@
+/*	$NetBSD: mem.c,v 1.2 2002/01/21 19:49:51 tv Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Jochen Pohl
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Jochen Pohl for
+ *	The NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(__RCSID) && !defined(lint)
+__RCSID("$NetBSD: mem.c,v 1.2 2002/01/21 19:49:51 tv Exp $");
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "lint.h"
+
+void *
+xmalloc(size_t s)
+{
+	void	*p;
+
+	if ((p = malloc(s)) == NULL)
+		nomem();
+	return (p);
+}
+
+void *
+xcalloc(size_t n, size_t s)
+{
+	void	*p;
+
+	if ((p = calloc(n, s)) == NULL)
+		nomem();
+	return (p);
+}
+
+void *
+xrealloc(void *p, size_t s)
+{
+
+	if ((p = realloc(p, s)) == NULL)
+		nomem();
+	return (p);
+}
+
+char *
+xstrdup(const char *s)
+{
+	char	*s2;
+
+	if ((s2 = strdup(s)) == NULL)
+		nomem();
+	return (s2);
+}
+
+void
+nomem(void)
+{
+
+	errx(1, "virtual memory exhausted");
+}
diff --git a/usr.bin/xlint/common/param.h b/usr.bin/xlint/common/param.h
new file mode 100644
index 0000000..46f7326
--- /dev/null
+++ b/usr.bin/xlint/common/param.h
@@ -0,0 +1,88 @@
+/*	$NetBSD: param.h,v 1.1 2002/01/18 20:39:24 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Jochen Pohl
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Jochen Pohl for
+ *	The NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Minimun size of string buffer. If this is not enough, the buffer
+ * is enlarged in steps of STRBLEN bytes.
+ */
+#define	STRBLEN		256
+
+/*
+ * This defines the size of memory blocks which are used to allocate
+ * memory in larger chunks.
+ */
+#define	MBLKSIZ		((size_t)0x4000)
+
+/*
+ * Sizes of hash tables
+ * Should be a prime. Possible primes are
+ * 307, 401, 503, 601, 701, 809, 907, 1009, 1103, 1201, 1301, 1409, 1511.
+ *
+ * HSHSIZ1	symbol table 1st pass
+ * HSHSIZ2	symbol table 2nd pass
+ * THSHSIZ2	type table 2nd pass
+ */
+#define	HSHSIZ1		503
+#define HSHSIZ2		1009
+#define	THSHSIZ2	1009
+
+/*
+ * Pull in target-specific parameters.
+ */
+#include "targparam.h"
+
+/*
+ * Make sure this matches wchar_t.
+ */
+#define WCHAR	INT
+
+/*
+ * long double only in ANSI C.
+ *
+ * And the sparc64 long double code generation is broken.
+ */
+#if !defined(__sparc64__) && defined(__STDC__)
+typedef	long double ldbl_t;
+#else
+typedef	double	ldbl_t;
+#endif
+
+/*
+ * Some traditional compilers are not able to assign structures.
+ */
+#ifdef __STDC__
+#define STRUCT_ASSIGN(dest, src)	(dest) = (src)
+#else
+#define STRUCT_ASSIGN(dest, src)	(void)memcpy(&(dest), &(src), \
+						     sizeof (dest));
+#endif