100 lines
1.4 KiB
ArmAsm
100 lines
1.4 KiB
ArmAsm
# setjmp/longjmp for mt.
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#
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# The jmpbuf looks like this:
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#
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# Register jmpbuf offset
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# R0 --- --
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# R1 0x4 4
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# R2 0x8 8
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# R3 0xc 12
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# R4 0x10 16
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# R5 0x14 20
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# R6 0x18 24
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# R7 0x1c 28
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# R8 0x20 32
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# R9 ---- --
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# R10 ---- --
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# R11 0x2c 44
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# R12 0x30 48
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# R13 0x34 52
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# R14 0x38 56
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# R15 0x3c 60
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#
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# R1 contains the pointer to jmpbuf
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.text
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.global setjmp
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.type setjmp ,@function
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setjmp:
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stw r1, r1, #4
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or r0, r0, r0
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stw r2, r1, #8
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or r0, r0, r0
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stw r3, r1, #12
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or r0, r0, r0
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stw r4, r1, #16
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or r0, r0, r0
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stw r5, r1, #20
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or r0, r0, r0
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stw r6, r1, #24
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or r0, r0, r0
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stw r7, r1, #28
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or r0, r0, r0
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stw r8, r1, #32
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or r0, r0, r0
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stw r11, r1, #44
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or r0, r0, r0
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stw r12, r1, #48
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or r0, r0, r0
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stw r13, r1, #52
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or r0, r0, r0
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stw r14, r1, #56
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or r0, r0, r0
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stw r15, r1, #60
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jal r0, r14
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addi r11, r0, #0
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.Lend1:
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.size setjmp,.Lend1-setjmp
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.global longjmp
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.type longjmp,@function
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longjmp:
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or r9, r1, r1
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or r11, r2, r2
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ldw r1, r1, #4
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or r0, r0, r0
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ldw r2, r1, #8
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or r0, r0, r0
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ldw r3, r1, #12
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or r0, r0, r0
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ldw r4, r1, #16
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or r0, r0, r0
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ldw r5, r1, #20
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or r0, r0, r0
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ldw r6, r1, #24
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or r0, r0, r0
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ldw r7, r1, #28
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or r0, r0, r0
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ldw r8, r1, #32
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or r0, r0, r0
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ldw r12, r1, #48
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or r0, r0, r0
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ldw r13, r1, #52
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or r0, r0, r0
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ldw r14, r1, #56
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or r0, r0, r0
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ldw r15, r1, #60
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brne r0, r11, .L01
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or r0, r0, r0
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addi r11, r0, #1
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.L01:
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jal r0, r14
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or r0, r0, r0
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.Lend2:
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.size longjmp,.Lend2-longjmp2
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