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/*
* Copyright (c) 2012, 2013 Richard Braun.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <machine/asm.h>
#include <machine/trap.h>
.text
#ifdef __LP64__
.macro TRAP_STORE_REGISTERS
pushq %r15
pushq %r14
pushq %r13
pushq %r12
pushq %r11
pushq %r10
pushq %r9
pushq %r8
pushq %rdi
pushq %rsi
pushq %rbp
pushq %rdx
pushq %rcx
pushq %rbx
pushq %rax
.endm
.macro TRAP_LOAD_REGISTERS
popq %rax
popq %rbx
popq %rcx
popq %rdx
popq %rbp
popq %rsi
popq %rdi
popq %r8
popq %r9
popq %r10
popq %r11
popq %r12
popq %r13
popq %r14
popq %r15
addq $16, %rsp /* skip vector and error */
.endm
#define TRAP(vector, name) \
ASM_ENTRY(name) \
pushq $0; \
pushq $(vector); \
jmp trap_common; \
ASM_END(name)
#define TRAP_ERROR(vector, name) \
ASM_ENTRY(name) \
pushq $(vector); \
jmp trap_common; \
ASM_END(name)
ASM_ENTRY(trap_common)
TRAP_STORE_REGISTERS
movq %rsp, %rdi
call trap_main
TRAP_LOAD_REGISTERS
iretq
ASM_END(trap_common)
#else /* __LP64__ */
.macro TRAP_STORE_REGISTERS
pushl %gs
pushl %fs
pushl %es
pushl %ds
pushl %edi
pushl %esi
pushl %ebp
pushl %edx
pushl %ecx
pushl %ebx
pushl %eax
.endm
/* XXX Don't load segment registers for now */
.macro TRAP_LOAD_REGISTERS
popl %eax
popl %ebx
popl %ecx
popl %edx
popl %ebp
popl %esi
popl %edi
addl $24, %esp /* skip segment registers, vector and error */
.endm
#define TRAP(vector, name) \
ASM_ENTRY(name) \
pushl $0; \
pushl $(vector); \
jmp trap_common; \
ASM_END(name)
#define TRAP_ERROR(vector, name) \
ASM_ENTRY(name) \
pushl $(vector); \
jmp trap_common; \
ASM_END(name)
ASM_ENTRY(trap_common)
TRAP_STORE_REGISTERS
pushl %esp
call trap_main
addl $4, %esp
TRAP_LOAD_REGISTERS
iret
ASM_END(trap_common)
#endif /* __LP64__ */
/* Architecture defined traps */
TRAP(TRAP_DE, trap_isr_divide_error)
TRAP(TRAP_DB, trap_isr_debug)
TRAP(TRAP_NMI, trap_isr_nmi)
TRAP(TRAP_BP, trap_isr_breakpoint)
TRAP(TRAP_OF, trap_isr_overflow)
TRAP(TRAP_BR, trap_isr_bound_range)
TRAP(TRAP_UD, trap_isr_invalid_opcode)
TRAP(TRAP_NM, trap_isr_device_not_available)
TRAP_ERROR(TRAP_DF, trap_isr_double_fault)
TRAP_ERROR(TRAP_TS, trap_isr_invalid_tss)
TRAP_ERROR(TRAP_NP, trap_isr_segment_not_present)
TRAP_ERROR(TRAP_SS, trap_isr_stack_segment_fault)
TRAP_ERROR(TRAP_GP, trap_isr_general_protection)
TRAP_ERROR(TRAP_PF, trap_isr_page_fault)
TRAP(TRAP_MF, trap_isr_math_fault)
TRAP_ERROR(TRAP_AC, trap_isr_alignment_check)
TRAP(TRAP_MC, trap_isr_machine_check)
TRAP(TRAP_XM, trap_isr_simd_fp_exception)
/* Basic PIC support */
TRAP(TRAP_PIC_BASE + 7, trap_isr_pic_int7)
TRAP(TRAP_PIC_BASE + 15, trap_isr_pic_int15)
/* System defined traps */
TRAP(TRAP_LLSYNC_RESET, trap_isr_llsync_reset)
TRAP(TRAP_THREAD_SCHEDULE, trap_isr_thread_schedule)
TRAP(TRAP_PMAP_UPDATE, trap_isr_pmap_update)
TRAP(TRAP_CPU_HALT, trap_isr_cpu_halt)
TRAP(TRAP_LAPIC_TIMER, trap_isr_lapic_timer)
TRAP(TRAP_LAPIC_ERROR, trap_isr_lapic_error)
TRAP(TRAP_LAPIC_SPURIOUS, trap_isr_lapic_spurious)
/* Unhandled traps */
TRAP(TRAP_DEFAULT, trap_isr_default)
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