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.section .text
.macro push_state
pushq %rax
pushq %rbx
pushq %rcx
pushq %rdx
pushq %rsi
pushq %rdi
pushq %rbp
pushq %r8
pushq %r9
pushq %r10
pushq %r11
pushq %r12
pushq %r13
pushq %r14
pushq %r15
.endm
.macro pop_state
popq %r15
popq %r14
popq %r13
popq %r12
popq %r11
popq %r10
popq %r9
popq %r8
popq %rbp
popq %rdi
popq %rsi
popq %rdx
popq %rcx
popq %rbx
popq %rax
.endm
.macro swapgs_if_necessary
cmpq $0x08, 0x8(%rsp)
je 1f
swapgs
1:
.endm
.extern __int_handles
.type __isr_header @function
__isr_header:
push_state
cld
movq %rsp, %rdi
isr_break:
movq 0x78(%rdi), %rax
movq __int_handles(,%rax,8), %rbx
call %rbx
pop_state
addq $16, %rsp
swapgs_if_necessary
iretq
.size __isr_header, . - __isr_header
.macro defn_isr_err num:req
.type __isr\num @function
__isr\num:
swapgs_if_necessary
pushq $\num
jmp __isr_header
.size __isr\num, . - __isr\num
.endm
.macro defn_isr num:req
.type __isr\num @function
__isr\num:
swapgs_if_necessary
pushq $0
pushq $\num
jmp __isr_header
.size __isr\num, . - __isr\num
.endm
.macro decl_isr num:req
.quad __isr\num
.endm
defn_isr 0
defn_isr 1
defn_isr 2
defn_isr 3
defn_isr 4
defn_isr 5
defn_isr 6
defn_isr 7
defn_isr_err 8
defn_isr 9
defn_isr_err 10
defn_isr_err 11
defn_isr_err 12
defn_isr_err 13
defn_isr_err 14
defn_isr 15
defn_isr 16
defn_isr_err 17
defn_isr 18
defn_isr 19
defn_isr 20
defn_isr_err 21
.altmacro
.set i, 22
.rept 48-22
defn_isr %i
.set i, i+1
.endr
.section .data
.global __isrs
.type __isrs @object
__isrs:
.set i, 0
.rept 48
decl_isr %i
.set i, i+1
.endr
.size __isrs, . - __isrs
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