6 files changed, 180 insertions, 0 deletions

diff --git a/tools/build/Makefile b/tools/build/Makefile
new file mode 100644
index 000000000000..adde04a56619
--- /dev/null
+++ b/tools/build/Makefile
@@ -0,0 +1,58 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../include
+
+LIB=		build
+SRCS=
+INCSGROUPS=	INCS
+INCS=		
+
+BOOTSTRAPPING?=	0
+
+# Some tools need <sys/endian.h>.
+.if !exists(/usr/include/sys/endian.h)
+INCSGROUPS+=	SYSHDRS
+SYSHDRS=	endian.h
+SYSHDRSDIR=	${INCLUDEDIR}/sys
+.endif
+
+# gnu/usr.bin/binutils/ld needs <elf-hints.h>.
+.if !exists(/usr/include/elf-hints.h)
+INCS+=		elf-hints.h
+.endif
+
+# lib/libncurses needs <stdbool.h>.
+.if !exists(/usr/include/stdbool.h)
+INCS+=		stdbool.h
+.endif
+
+# usr.bin/xargs needs <nl_langinfo.h>.
+.if !exists(/usr/include/langinfo.h)
+INCS+=		langinfo.h
+.endif
+
+# gnu/usr.bin/binutils/libiberty needs basename(3).
+.if ( ${BOOTSTRAPPING} < 440000 || \
+    ( ${BOOTSTRAPPING} >= 500000 && ${BOOTSTRAPPING} < 500022 ))
+.PATH: ${.CURDIR}/../../lib/libc/gen
+SRCS+=		basename.c
+.endif
+
+# Some tools need {get,set}progname(3).
+.if ( ${BOOTSTRAPPING} < 440001 || \
+    ( ${BOOTSTRAPPING} >= 500000 && ${BOOTSTRAPPING} < 500023 ))
+SRCS+=		progname.c
+.endif
+
+# install(1) needs strtofflags(3).
+.if ( ${BOOTSTRAPPING} < 400021 || \
+    ( ${BOOTSTRAPPING} >= 500000 && ${BOOTSTRAPPING} < 500007 ))
+.PATH: ${.CURDIR}/../../lib/libc/gen
+SRCS+=		strtofflags.c
+.endif
+
+.if empty(SRCS)
+SRCS=		dummy.c
+.endif
+
+.include <bsd.lib.mk>
diff --git a/tools/build/Makefile.boot b/tools/build/Makefile.boot
new file mode 100644
index 000000000000..e4899811d4a5
--- /dev/null
+++ b/tools/build/Makefile.boot
@@ -0,0 +1,18 @@
+# $FreeBSD$
+
+# FreeBSD didn't always have the __FBSDID() macro in <sys/cdefs.h>.
+.if defined(BOOTSTRAPPING) && \
+    ( ${BOOTSTRAPPING} < 440001 || \
+    ( ${BOOTSTRAPPING} >= 500000 && ${BOOTSTRAPPING} < 500024 ))
+CFLAGS+=	-D__FBSDID=__RCSID
+.endif
+
+CFLAGS+=	-I${WORLDTMP}/usr/include
+DPADD=		${WORLDTMP}/usr/lib/libbuild.a
+LDADD=		-lbuild
+LDFLAGS=	-L${WORLDTMP}/usr/lib
+
+OLD_MAKE_CONF?=	/etc/make.conf
+.if exists(${OLD_MAKE_CONF})
+.include "${OLD_MAKE_CONF}"
+.endif
diff --git a/tools/build/dummy.c b/tools/build/dummy.c
new file mode 100644
index 000000000000..b656a0305a97
--- /dev/null
+++ b/tools/build/dummy.c
@@ -0,0 +1,5 @@
+/*
+ * $FreeBSD$
+ *
+ * Empty file to keep linker happy.
+ */
diff --git a/tools/build/endian.h b/tools/build/endian.h
new file mode 100644
index 000000000000..dbec54500ebc
--- /dev/null
+++ b/tools/build/endian.h
@@ -0,0 +1,57 @@
+/*
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+
+#if __FreeBSD_version >= 500034
+#include_next <sys/endian.h>
+#else
+#include <machine/endian.h>
+
+#define	bswap16(x) (uint16_t) \
+	((x >> 8) | (x << 8))
+
+#define	bswap32(x) (uint32_t) \
+	((x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24))
+
+#define	bswap64(x) (uint64_t) \
+	((x >> 56) | ((x >> 40) & 0xff00) | ((x >> 24) & 0xff0000) | \
+	((x >> 8) & 0xff000000) | ((x << 8) & ((uint64_t)0xff << 32)) | \
+	((x << 24) & ((uint64_t)0xff << 40)) | \
+	((x << 40) & ((uint64_t)0xff << 48)) | ((x << 56)))
+
+/*
+ * Host to big endian, host to little endian, big endian to host, and little
+ * endian to host byte order functions as detailed in byteorder(9).
+ */
+#if _BYTE_ORDER == _LITTLE_ENDIAN
+#define	htobe16(x)	bswap16((uint16_t)(x))
+#define	htobe32(x)	bswap32((uint32_t)(x))
+#define	htobe64(x)	bswap64((uint64_t)(x))
+#define	htole16(x)	((uint16_t)(x))
+#define	htole32(x)	((uint32_t)(x))
+#define	htole64(x)	((uint64_t)(x))
+
+#define	be16toh(x)	bswap16((uint16_t)(x))
+#define	be32toh(x)	bswap32((uint32_t)(x))
+#define	be64toh(x)	bswap64((uint64_t)(x))
+#define	le16toh(x)	((uint16_t)(x))
+#define	le32toh(x)	((uint32_t)(x))
+#define	le64toh(x)	((uint64_t)(x))
+#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
+#define	htobe16(x)	((uint16_t)(x))
+#define	htobe32(x)	((uint32_t)(x))
+#define	htobe64(x)	((uint64_t)(x))
+#define	htole16(x)	bswap16((uint16_t)(x))
+#define	htole32(x)	bswap32((uint32_t)(x))
+#define	htole64(x)	bswap64((uint64_t)(x))
+
+#define	be16toh(x)	((uint16_t)(x))
+#define	be32toh(x)	((uint32_t)(x))
+#define	be64toh(x)	((uint64_t)(x))
+#define	le16toh(x)	bswap16((uint16_t)(x))
+#define	le32toh(x)	bswap32((uint32_t)(x))
+#define	le64toh(x)	bswap64((uint64_t)(x))
+#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
+#endif
diff --git a/tools/build/langinfo.h b/tools/build/langinfo.h
new file mode 100644
index 000000000000..419c7214ed7e
--- /dev/null
+++ b/tools/build/langinfo.h
@@ -0,0 +1,17 @@
+/* $FreeBSD$ */
+
+#ifndef LANGINFO_H
+#define LANGINFO_H
+
+#include <sys/cdefs.h>
+
+#define YESEXPR 1
+
+/* xargs only needs yesexpr, so that's all we implement, for english */
+static inline const char *
+nl_langinfo(int type __unused)
+{
+	return ("^[yY]");
+}
+
+#endif /* LANGINFO_H */
diff --git a/tools/build/progname.c b/tools/build/progname.c
new file mode 100644
index 000000000000..dc1611e9ac28
--- /dev/null
+++ b/tools/build/progname.c
@@ -0,0 +1,25 @@
+/* $FreeBSD$ */
+
+/*
+ * Compat shims for those programs that use this newer interface.  These
+ * are more minimal than their libc bretheren as far as namespaces and
+ * such go because their use is so limited.  Also, the libc versions
+ * have too many depends on libc build environment; it is more of a pain
+ * to set that up than to recreate them here shorn of all the other goo.
+ */
+
+extern const char *__progname;
+
+void
+setprogname(const char *p)
+{
+
+	__progname = p;
+}
+
+const char *
+getprogname(void)
+{
+
+	return (__progname);
+}