I've been trying to compile OSKit under Cygwin. It gave me a bunch of errors, most of which I fixed. I can't fix this one though:
/*
* Copyright (c) 1996-2000 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Interrupt handler initialization table and stubs.
*/
#include <oskit/x86/asm.h>
#include <oskit/x86/gate_init.h>
#include <oskit/x86/seg.h>
#include <oskit/x86/base_trap.h>
#ifdef GPROF
#include <oskit/x86/pc/irq_list.h>
#endif
#include "pc_asm.h"
/*
* XXX these should either be generated (ala genassym) or defined in
* base_trap.h.
*/
#define TS_ERR 52
#define TS_EIP 56
#define TS_CS 60
.text
/*
* Gives gprof a symbol to assign time to for functions registered
* as interrupt handlers
*/
NON_GPROF_ENTRY(oskit_base_irq_handler);
#define MASTER(irq, num) \
GATE_ENTRY(BASE_IRQ_MASTER_BASE + (num), 0f, ACC_PL_K|ACC_INTR_GATE) ;\
P2ALIGN(TEXT_ALIGN) ;\
0: ;\
pushl $(irq) /* error code = irq vector */ ;\
pushl $BASE_IRQ_MASTER_BASE + (num) /* trap number */ ;\
pusha /* save general registers */ ;\
movl $(irq),%ecx /* irq vector number */ ;\
movb $1 << num,%dl /* pic mask for this irq */ ;\
jmp master_ints
#define SLAVE(irq, num) \
GATE_ENTRY(BASE_IRQ_SLAVE_BASE + (num), 0f, ACC_PL_K|ACC_INTR_GATE) ;\
P2ALIGN(TEXT_ALIGN) ;\
0: ;\
pushl $(irq) /* error code = irq vector */ ;\
pushl $BASE_IRQ_SLAVE_BASE + (num) /* trap number */ ;\
pusha /* save general registers */ ;\
movl $(irq),%ecx /* irq vector number */ ;\
movb $1 << num,%dl /* pic mask for this irq */ ;\
jmp slave_ints
GATE_INITTAB_BEGIN(base_irq_inittab)
MASTER(0, 0)
MASTER(1, 1)
MASTER(2, 2)
MASTER(3, 3)
MASTER(4, 4)
MASTER(5, 5)
MASTER(6, 6)
MASTER(7, 7)
SLAVE( 8, 0)
SLAVE( 9, 1)
SLAVE(10, 2)
SLAVE(11, 3)
SLAVE(12, 4)
SLAVE(13, 5)
SLAVE(14, 6)
SLAVE(15, 7)
GATE_INITTAB_END
P2ALIGN(TEXT_ALIGN)
master_ints:
/* Save the current master PIC mask (bl) */
inb $0x21,%al
movb %al,%bl
/* Mask the interrupting IRQ */
orb %dl,%al
outb %al,$0x21
/* Acknowledge the interrupt */
movb $0x20,%al
outb %al,$0x20
/* Save the rest of the standard trap frame (oskit/x86/base_trap.h). */
pushl %ds
pushl %es
pushl %fs
pushl %gs
/* Load the kernel's segment registers. */
movw %ss,%dx
movw %dx,%ds
movw %dx,%es
/* Increment the hardware interrupt nesting counter */
incb EXT(base_irq_nest)
/* Load the handler vector */
movl EXT(base_irq_handlers)(,%ecx,4),%esi
/* XXX re-enable the processor's I flag? */
/* GCC likes the direction flag cleared. */
cld
#ifdef __ELF__ /* XXX only work for ELF right now */
/*
* If supervisor mode, check for interrupt annotations.
* If the table is not empty, we find the entry covering the EIP
* and call the annotation handler before calling the interrupt
* handler.
*
* XXX only at nest level 0?
*/
testb $3,TS_CS(%esp)
jnz 1f
cmpl $0,EXT(anno_intr)
jz 1f
pushl TS_EIP(%esp)
pushl $EXT(anno_intr)
call EXT(anno_find_lower)
addl $8,%esp
orl %eax,%eax
jz 1f
movl 4(%eax),%edx
orl %edx,%edx
jz 1f
pushl %esp
pushl %eax
call *%edx
addl $8,%esp
#endif /* __ELF__ */
1:
#ifdef FULL_STACK_TRACE
/*
* Fake a stack frame for back traces
*/
movl %esp,%edx
pushl TS_EIP(%esp)
pushl %ebp
movl %esp,%ebp
pushl %edx
call *%esi
movl %ebp,%esp
popl %ebp
popl %edx
#else
/* Call the interrupt handler with the trap frame as a parameter */
pushl %esp
call *%esi
popl %edx
#endif
movl %eax,%edx
/* Unmask the IRQ if the return value from the handler allows it */
testl $BASE_IRQ_LEAVE_MASKED,%edx
jne 1f
movb %bl,%al
outb %al,$0x21
1:
/* Decrement the nesting counter and check for software interrupts */
decb EXT(base_irq_nest)
jnz 1f
/* But only if allowed to do so */
testl $BASE_IRQ_SKIP_SOFTINT,%edx
jne 1f
movb $BASE_IRQ_SOFTINT_CLEARED|BASE_IRQ_SOFTINT_DISABLED,EXT(base_irq_nest)
sti
pushl %esp
movl EXT(base_irq_softint_handler),%ebx
call *%ebx
popl %eax
cli
andb $BASE_IRQ_SOFTINT_CLEARED,EXT(base_irq_nest)
1:
/* Return from the interrupt */
popl %gs
popl %fs
popl %es
popl %ds
popa
addl $4*2,%esp /* Pop trap number and error code */
iret
P2ALIGN(TEXT_ALIGN)
slave_ints:
/* Save the current slave PIC mask (bl) */
inb $0xa1,%al
movb %al,%bl
/* Mask the interrupting IRQ */
orb %dl,%al
outb %al,$0xa1
/* Acknowledge the interrupt at both the master and the slave */
movb $0x20,%al
outb %al,$0x20
outb %al,$0xa0
/* Save the rest of the standard trap frame (oskit/x86/base_trap.h). */
pushl %ds
pushl %es
pushl %fs
pushl %gs
/* Load the kernel's segment registers. */
movw %ss,%dx
movw %dx,%ds
movw %dx,%es
/* Increment the hardware interrupt nesting counter */
incb EXT(base_irq_nest)
/* Load the handler vector */
movl EXT(base_irq_handlers)(,%ecx,4),%esi
/* XXX re-enable the processor's I flag? */
/* GCC likes the direction flag cleared. */
cld
#ifdef __ELF__ /* XXX only work for ELF right now */
/*
* If supervisor mode, check for interrupt annotations.
* If the table is not empty, we find the entry covering the EIP
* and call the annotation handler before calling the interrupt
* handler.
*
* XXX only at nest level 0?
*/
testb $3,TS_CS(%esp)
jnz 1f
cmpl $0,EXT(anno_intr)
jz 1f
pushl TS_EIP(%esp)
pushl $EXT(anno_intr)
call EXT(anno_find_lower)
addl $8,%esp
orl %eax,%eax
jz 1f
movl 4(%eax),%edx
orl %edx,%edx
jz 1f
pushl %esp
pushl %eax
call *%edx
addl $8,%esp
#endif /* __ELF__ */
1:
#ifdef FULL_STACK_TRACE
/*
* Fake a stack frame for back traces
*/
movl %esp,%edx
pushl TS_EIP(%esp)
pushl %ebp
movl %esp,%ebp
pushl %edx
call *%esi
movl %ebp,%esp
popl %ebp
popl %edx
#else
/* Call the interrupt handler with the trap frame as a parameter */
pushl %esp
call *%esi
popl %edx
#endif
movl %eax,%edx
/* Unmask the IRQ if the return value from the handler allows it */
testl $BASE_IRQ_LEAVE_MASKED,%edx
jne 1f
movb %bl,%al
outb %al,$0xa1
1:
/* Decrement the nesting counter and check for software interrupts */
decb EXT(base_irq_nest)
jnz 1f
/* But only if allowed to do so */
testl $BASE_IRQ_SKIP_SOFTINT,%edx
jne 1f
movb $BASE_IRQ_SOFTINT_CLEARED|BASE_IRQ_SOFTINT_DISABLED,EXT(base_irq_nest)
sti
pushl %esp
movl EXT(base_irq_softint_handler),%ebx
call *%ebx
popl %eax
cli
andb $BASE_IRQ_SOFTINT_CLEARED,EXT(base_irq_nest)
1:
/* Return from the interrupt */
popl %gs
popl %fs
popl %es
popl %ds
popa
addl $4*2,%esp /* Pop trap number and error code */
iretThe error:
../kern/x86/pc/base_irq_inittab.S: Assembler messages:
../kern/x86/pc/base_irq_inittab.S:192: Error: undefined symbol `BASE_IRQ_SOFTINT
_CLEARED' in operation
../kern/x86/pc/base_irq_inittab.S:192: Error: undefined symbol `BASE_IRQ_SOFTINT
_DISABLED' in operation
../kern/x86/pc/base_irq_inittab.S:312: Error: undefined symbol `BASE_IRQ_SOFTINT
_CLEARED' in operation
../kern/x86/pc/base_irq_inittab.S:312: Error: undefined symbol `BASE_IRQ_SOFTINT
_DISABLED' in operation
make[1]: *** [base_irq_inittab.o] Error 1
make[1]: Leaving directory `/home/mike/mikeos/oskit-20020317/kern'
make: *** [kern/all.MAKE] Error 2