Bananymous
a29681a524
We need to have interrupts enabled when signal kills the process as process does mutex locking. Also signals are now only checked when returning to userspace in the same place where userspace segments are loaded.
167 lines
2.7 KiB
ArmAsm
167 lines
2.7 KiB
ArmAsm
.macro intr_header, n
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pushq %rax
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pushq %rcx
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pushq %rdx
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pushq %rbx
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pushq %rbp
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pushq %rsi
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pushq %rdi
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pushq %r8
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pushq %r9
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pushq %r10
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pushq %r11
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pushq %r12
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pushq %r13
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pushq %r14
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pushq %r15
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testb $3, \n+15*8(%rsp)
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jz 1f
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swapgs
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1: cld
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.endm
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.macro intr_footer, n
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testb $3, \n+15*8(%rsp)
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jz 1f
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call cpp_check_signal
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swapgs
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1: popq %r15
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popq %r14
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popq %r13
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popq %r12
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popq %r11
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popq %r10
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popq %r9
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popq %r8
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popq %rdi
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popq %rsi
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popq %rbp
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popq %rbx
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popq %rdx
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popq %rcx
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popq %rax
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.endm
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isr_stub:
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intr_header 24
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movq %cr0, %rax; pushq %rax
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movq %cr2, %rax; pushq %rax
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movq %cr3, %rax; pushq %rax
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movq %cr4, %rax; pushq %rax
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movq 152(%rsp), %rdi // isr number
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movq 160(%rsp), %rsi // error code
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leaq 168(%rsp), %rdx // interrupt stack ptr
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movq %rsp, %rcx // register ptr
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call cpp_isr_handler
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addq $32, %rsp
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intr_footer 24
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addq $16, %rsp
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iretq
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irq_stub:
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intr_header 24
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xorq %rbp, %rbp
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movq 120(%rsp), %rdi # irq number
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call cpp_irq_handler
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intr_footer 24
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addq $16, %rsp
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iretq
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.global asm_ipi_handler
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asm_ipi_handler:
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intr_header 8
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xorq %rbp, %rbp
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call cpp_ipi_handler
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intr_footer 8
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iretq
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.global asm_timer_handler
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asm_timer_handler:
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intr_header 8
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xorq %rbp, %rbp
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call cpp_timer_handler
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intr_footer 8
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iretq
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.macro isr n
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.global isr\n
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isr\n:
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pushq $0
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pushq $\n
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jmp isr_stub
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.endm
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.macro isr_err n
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.global isr\n
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isr\n:
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pushq $\n
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jmp isr_stub
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.endm
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.macro irq n
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.global irq\n
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irq\n:
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pushq $0
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pushq $\n
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jmp irq_stub
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.endm
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isr 0
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isr 1
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isr 2
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isr 3
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isr 4
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isr 5
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isr 6
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isr 7
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isr_err 8
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isr 9
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isr_err 10
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isr_err 11
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isr_err 12
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isr_err 13
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isr_err 14
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isr 15
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isr 16
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isr_err 17
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isr 18
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isr 19
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isr 20
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isr 21
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isr 22
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isr 23
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isr 24
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isr 25
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isr 26
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isr 27
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isr 28
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isr 29
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isr 30
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isr 31
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.irp i, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, \
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10, 11, 12, 13, 14, 15, 16, 17, 18, 19, \
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20, 21, 22, 23, 24, 25, 26, 27, 28, 29, \
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30, 31, 32, 33, 34, 35, 36, 37, 38, 39, \
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40, 41, 42, 43, 44, 45, 46, 47, 48, 49, \
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50, 51, 52, 53, 54, 55, 56, 57, 58, 59, \
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60, 61, 62, 63, 64, 65, 66, 67, 68, 69, \
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70, 71, 72, 73, 74, 75, 76, 77, 78, 79, \
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80, 81, 82, 83, 84, 85, 86, 87, 88, 89, \
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90, 91, 92, 93, 94, 95, 96, 97, 98, 99, \
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100,101,102,103,104,105,106,107,108,109, \
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110,111,112,113,114,115,116,117,118,119, \
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120,121,122,123,124,125,126,127,128,129, \
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130,131,132,133,134,135,136,137,138,139, \
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140,141,142,143,144,145,146,147,148,149, \
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150,151,152,153,154,155,156,157,158,159, \
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160,161,162,163,164,165,166,167,168,169, \
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170,171,172,173,174,175,176,177,178,179, \
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180,181,182,183,184,185,186,187,188,189, \
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190,191,192,193,194,195,196,197,198,199, \
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200,201,202,203,204,205,206,207
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irq \i
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.endr
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