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CVS log for src/sys/arch/i386/include/exec.h

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Keyword substitution: kv
Default branch: MAIN

enable (E)COFF execution

This is very weird though: I only got an NMAGIC executable with the
following source code and build way to work, which is auto-detected
by GNU bfd as “pe-i386”, but cannot be created by ld(1) in an auto-
mated manner…

tg@bleu:~ $ as -o hwtdb.o hwtdb.s
tg@bleu:~ $ ld --oformat binary -Ttext 0 hwtdb.o -o hwtdb
tg@bleu:~ $ ./hwtdb
Hello, World!

	.intel_syntax noprefix
	.text

	.globl	_start
_start:

fhdr:	.short	0x014C			# f_magic
	.short	3			# f_nscns
	.long	0, 0, 0			# f_timdat, f_symptr, f_nsyms
	.short	ohsz			# f_opthdr
	.short	0x010F			# f_flags

ohdr:	.short	0407			# magic
	.short	134			# vstamp
	.long	tssz			# tsize
	.long	dssz			# dsize
	.long	bssz			# bsize
	.long	0x1C000000		# entry
	.long	0x1C000000		# text_start
	.long	0x1C000000 + dofs	# data_start
	.long	0			# bss_start
	ohsz = . - ohdr

shdrt:	.asciz	".text"			# s_name
	. = shdrt + 8
	.long	0x1C000000		# s_paddr
	.long	0x1C000000		# s_vaddr
	.long	tssz			# s_size
	.long	tsec			# s_scnptr
	.long	0, 0			# s_relptr, s_lnnoptr
	.short	0, 0			# s_nreloc, s_nlnno
	.long	0x20			# s_flags

shdrd:	.asciz	".data"			# s_name
	. = shdrd + 8
	.long	0x1C000000 + dofs	# s_paddr
	.long	0x1C000000 + dofs	# s_vaddr
	.long	dssz			# s_size
	.long	dsec			# s_scnptr
	.long	0, 0			# s_relptr, s_lnnoptr
	.short	0, 0			# s_nreloc, s_nlnno
	.long	0x40			# s_flags

shdrb:	.asciz	".bss"			# s_name
	. = shdrb + 8
	.long	0			# s_paddr
	.long	0x1C000000 + bofs	# s_vaddr
	.long	bssz			# s_size
	.long	0			# s_scnptr
	.long	0, 0			# s_relptr, s_lnnoptr
	.short	0, 0			# s_nreloc, s_nlnno
	.long	0x80			# s_flags

	.p2align 4, 0

	fofs = .

tsec:
	call	Lmain
Ltext:	.ascii	"Hello, World!\n"
	Ltxsz = . - Ltext
sc_write:
	mov	eax,4
	int	0x80
	ret
Lmain:	pop	ecx
	push	dword ptr Ltxsz
	push	ecx
	push	dword ptr 1
	call	sc_write
	add	esp,12
	push	dword ptr 0
	call	sc__exit
sc__exit:
	xor	eax,eax
	inc	eax
	int	0x80
1:	jmp	1b
tpad:	.p2align 4, 0x90
	tssz = . - tsec

	dofs = . - fofs
dsec:
dpad:	.p2align 4, 0
	dssz = . - dsec

	bofs = . - fofs
bsec:
	bssz = . - bsec

don't even bother with (E)COFF for now, it's broken anyway

put a.out and (E)COFF into #ifndef SMALL_KERNEL

throw in EXEC_ECOFF support for i386...
I get an EPERM but maybe someone can debug this?

* merge src/sys/
  (at least the better part of it)
* revert IPv6 networking to OpenBSD, since
  I didn't get IPV4_MAPPED addresses working :(

Import the OpenBSD foundation of MirOS BSD

Initial revision