Initiate deorbit burn for the i386-only a.out related support. Moves are

under way to move the remnants of the a.out toolchain to ports.  As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL.  It has already lasted WAY beyond
that.

Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.

Tested on: i386 (extensively), alpha

13 files changed, 6 insertions, 78 deletions

diff --git a/sys/boot/i386/boot0/Makefile b/sys/boot/i386/boot0/Makefile
index 9de7dcf..434691e 100644
--- a/sys/boot/i386/boot0/Makefile
+++ b/sys/boot/i386/boot0/Makefile
@@ -24,13 +24,8 @@ BOOT_BOOT0_TICKS?=	0xb6
 BOOT_BOOT0_ORG?=	0x600
 
 boot0: boot0.o
-.if ${OBJFORMAT} == aout
-	${LD} -N -s -T ${BOOT_BOOT0_ORG} -o boot0.out boot0.o
-	dd if=boot0.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${BOOT_BOOT0_ORG} -o boot0.out boot0.o
 	objcopy -S -O binary boot0.out ${.TARGET}
-.endif
 
 boot0.o: boot0.s
 	${AS} ${AFLAGS} --defsym FLAGS=${BOOT_BOOT0_FLAGS} \
diff --git a/sys/boot/i386/btx/btx/Makefile b/sys/boot/i386/btx/btx/Makefile
index 1d03cfd..c2a33a6 100644
--- a/sys/boot/i386/btx/btx/Makefile
+++ b/sys/boot/i386/btx/btx/Makefile
@@ -28,13 +28,8 @@ ORG=	0x9000
 all: btx
 
 btx: btx.o
-.if ${OBJFORMAT} == aout
-	${LD} -nostdlib -N -s -T ${ORG} -o btx.out btx.o
-	dd if=btx.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${ORG} -o btx.out btx.o
 	objcopy -S -O binary btx.out ${.TARGET}
-.endif
 
 btx.o: btx.s
 	(cd ${.CURDIR}; ${M4} ${M4FLAGS} btx.s) | \
diff --git a/sys/boot/i386/btx/btxldr/Makefile b/sys/boot/i386/btx/btxldr/Makefile
index 0d61889..bd69850 100644
--- a/sys/boot/i386/btx/btxldr/Makefile
+++ b/sys/boot/i386/btx/btxldr/Makefile
@@ -10,13 +10,8 @@ M4FLAGS+=	-DBTXLDR_VERBOSE
 all: btxldr
 
 btxldr: btxldr.o
-.if ${OBJFORMAT} == aout
-	${LD} -nostdlib -N -s -T ${LOADER_ADDRESS} -o btxldr.out btxldr.o
-	dd if=btxldr.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${LOADER_ADDRESS} -o btxldr.out btxldr.o
 	objcopy -S -O binary btxldr.out ${.TARGET}
-.endif
 
 btxldr.o: btxldr.s
 	(cd ${.CURDIR}; ${M4} ${M4FLAGS} btxldr.s ) | \
diff --git a/sys/boot/i386/btx/lib/Makefile b/sys/boot/i386/btx/lib/Makefile
index 737d5ec..0eba8f9 100644
--- a/sys/boot/i386/btx/lib/Makefile
+++ b/sys/boot/i386/btx/lib/Makefile
@@ -1,8 +1,6 @@
 # $FreeBSD$
 
 OBJS=		btxcsu.o btxsys.o btxv86.o
-AFLAGS+=	-elf
-LDFLAGS+=	-elf
 CLEANFILES+=	crt0.o ${OBJS}
 
 all: crt0.o
diff --git a/sys/boot/i386/cdboot/Makefile b/sys/boot/i386/cdboot/Makefile
index 18ca69f..9e8e813 100644
--- a/sys/boot/i386/cdboot/Makefile
+++ b/sys/boot/i386/cdboot/Makefile
@@ -10,13 +10,8 @@ STRIP=
 BINDIR?=	/boot
 
 ${PROG}: ${PROG}.o
-.if ${OBJFORMAT} == aout
-	${LD} -nostdlib -N -s -T ${ORG} -o ${PROG}.out ${PROG}.o
-	dd if=${PROG}.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${ORG} -o ${PROG}.out ${PROG}.o
 	objcopy -S -O binary ${PROG}.out ${.TARGET}
-.endif
 
 CLEANFILES+=	${PROG}.o ${PROG}.out
 
diff --git a/sys/boot/i386/kgzldr/Makefile b/sys/boot/i386/kgzldr/Makefile
index 607b686..9ed9114 100644
--- a/sys/boot/i386/kgzldr/Makefile
+++ b/sys/boot/i386/kgzldr/Makefile
@@ -4,11 +4,7 @@ FILES=	kgzldr.o
 SRCS=	start.s boot.c inflate.c lib.c crt.s sio.s
 OBJS=	${SRCS:N*.h:R:S/$/.o/g}
 CFLAGS=	-ffreestanding
-.if ${OBJFORMAT} == aout
-CFLAGS+=-O2
-.else
 CFLAGS+=-Os
-.endif
 CFLAGS+=-DKZIP
 LDFLAGS=-nostdlib -static -r
 BINDIR=	/usr/lib
@@ -16,17 +12,10 @@ BINDIR=	/usr/lib
 
 CLEANFILES=${FILES}
 
-M4?=	m4
-M4FLAGS=-DOBJFORMAT=${OBJFORMAT}
-
 BOOT_COMCONSOLE_PORT?=	0x3f8
 M4FLAGS+=-DSIOPRT=${BOOT_COMCONSOLE_PORT}
 
 kgzldr.o: ${OBJS}
 	${CC} ${LDFLAGS} -o ${.TARGET} ${OBJS}
 
-.s.o:
-	(cd ${.CURDIR}; ${M4} ${M4FLAGS} kgzldr.m4 ${.IMPSRC}) |\
-		${AS} ${AFLAGS} -o ${.TARGET}
-
 .include <bsd.prog.mk>
diff --git a/sys/boot/i386/kgzldr/crt.s b/sys/boot/i386/kgzldr/crt.s
index ac26a20..cfb479f 100644
--- a/sys/boot/i386/kgzldr/crt.s
+++ b/sys/boot/i386/kgzldr/crt.s
@@ -38,11 +38,11 @@
 		.set BDA_SCR,0x449		# Video mode
 		.set BDA_POS,0x450		# Cursor position
 
-		.globl _(crt_putchr)
+		.globl crt_putchr
 
 # void crt_putchr(int c)
 
-_(crt_putchr): 	movb 0x4(%esp,1),%al		# Get character
+crt_putchr: 	movb 0x4(%esp,1),%al		# Get character
 		pusha				# Save
 		xorl %ecx,%ecx			# Zero for loops
 		movb $SCR_MAT,%ah		# Mode/attribute
diff --git a/sys/boot/i386/kgzldr/kgzldr.m4 b/sys/boot/i386/kgzldr/kgzldr.m4
deleted file mode 100644
index 1441a4b..0000000
--- a/sys/boot/i386/kgzldr/kgzldr.m4
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-# Copyright (c) 2000 Robert Nordier
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms are freely
-# permitted provided that the above copyright notice and this
-# paragraph and the following disclaimer are duplicated in all
-# such forms.
-#
-# This software is provided "AS IS" and without any express or
-# implied warranties, including, without limitation, the implied
-# warranties of merchantability and fitness for a particular
-# purpose.
-#
-
-# $FreeBSD$
-
-define(_,`ifelse(OBJFORMAT,`aout',`_$1',`$1')')
diff --git a/sys/boot/i386/kgzldr/sio.s b/sys/boot/i386/kgzldr/sio.s
index 86b8ccd..79ea8a6 100644
--- a/sys/boot/i386/kgzldr/sio.s
+++ b/sys/boot/i386/kgzldr/sio.s
@@ -29,11 +29,11 @@
 
 		.set SIO_PRT,SIOPRT		# Base port
 
-		.globl _(sio_putchr)
+		.globl sio_putchr
 
 # void sio_putchr(int c)
 
-_(sio_putchr):	movw $SIO_PRT+0x5,%dx		# Line status reg
+sio_putchr:	movw $SIO_PRT+0x5,%dx		# Line status reg
 		xor %ecx,%ecx			# Timeout
 		movb $0x40,%ch			#  counter
 sio_putchr.1:	inb %dx,%al			# Transmitter
diff --git a/sys/boot/i386/kgzldr/start.s b/sys/boot/i386/kgzldr/start.s
index ff43c77..550fa52 100644
--- a/sys/boot/i386/kgzldr/start.s
+++ b/sys/boot/i386/kgzldr/start.s
@@ -40,6 +40,6 @@ _start:		cld				# String ops inc
 		rep				# Clear
 		stosb				#  bss
 		pushl 0x4(%esp)			# Pass howto flags
-		call _(boot)			# Call C code
+		call boot			# Call C code
 		popl %ecx			# Clear stack
-		jmp *_(kgz)+entry		# To loaded code
+		jmp *kgz+entry			# To loaded code
diff --git a/sys/boot/i386/liloldr/Makefile b/sys/boot/i386/liloldr/Makefile
index 3986eca..5ccffee 100644
--- a/sys/boot/i386/liloldr/Makefile
+++ b/sys/boot/i386/liloldr/Makefile
@@ -27,23 +27,12 @@ ${BOOT}: ${BSECT} ${LDR} ${LOADER}
 	rm ${.TARGET}.tmp
 
 ${LDR}: ${LDR}.o
-.if ${OBJFORMAT} == aout
-	${LD} -nostdlib -N -s -T ${ORG} -o ${LDR}.out ${LDR}.o
-	dd if=${LDR}.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${ORG} -o ${LDR}.out ${LDR}.o
 	objcopy -S -O binary ${LDR}.out ${.TARGET}
-.endif
 
 ${BSECT}: ${BSECT}.o
-.if ${OBJFORMAT} == aout
-	${LD} -nostdlib -N -s -T ${ORG} -o ${BSECT}.out ${BSECT}.o
-	dd if=${BSECT}.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${ORG} -o ${BSECT}.out ${BSECT}.o
 	objcopy -S -O binary ${BSECT}.out ${.TARGET}
-.endif
-
 
 ${BSECT}.o: ${BSECT}.s ${LOADER}
 
diff --git a/sys/boot/i386/mbr/Makefile b/sys/boot/i386/mbr/Makefile
index ed77dba..50add632 100644
--- a/sys/boot/i386/mbr/Makefile
+++ b/sys/boot/i386/mbr/Makefile
@@ -9,13 +9,8 @@ BINMODE=	444
 ORG=	0x600
 
 mbr: mbr.o
-.if ${OBJFORMAT} == aout
-	${LD} -N -s -T ${ORG} -o mbr.out mbr.o
-	dd if=mbr.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${ORG} -o mbr.out mbr.o
 	objcopy -S -O binary mbr.out ${.TARGET}
-.endif
 
 CLEANFILES+= mbr.out mbr.o
 
diff --git a/sys/boot/i386/pxeldr/Makefile b/sys/boot/i386/pxeldr/Makefile
index e798824..6ba21a3 100644
--- a/sys/boot/i386/pxeldr/Makefile
+++ b/sys/boot/i386/pxeldr/Makefile
@@ -43,13 +43,8 @@ ${LOADER}: ${LOADERBIN} ${BTXLDR} ${BTXKERN} ${BTXCRT}
 	    -b ${BTXKERN} ${LOADERBIN}
 
 ${LDR}: ${LDR}.o
-.if ${OBJFORMAT} == aout
-	${LD} -nostdlib -N -s -T ${ORG} -o ${LDR}.out ${LDR}.o
-	dd if=${LDR}.out of=${.TARGET} ibs=32 skip=1
-.else
 	${LD} -N -e start -Ttext ${ORG} -o ${LDR}.out ${LDR}.o
 	objcopy -S -O binary ${LDR}.out ${.TARGET}
-.endif
 
 ${LDR}.o: ${LDR}.s
 	(cd ${.CURDIR}; ${M4} ${M4FLAGS} ${LDR}.s) | \