23 lines
275 B
ArmAsm
23 lines
275 B
ArmAsm
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.globl _vfork
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.set vfork,66
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.align 1
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_vfork:
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.word 0x0000
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movl 16(fp),r2
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movab 1f,16(fp) # dirty. Only one process can do return,
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# so do it before forking
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ret
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1:
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chmk $vfork
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bcs 3f
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tstl r1
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bneq 1f
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clrl r0
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1:
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jmp (r2)
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3:
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movl r0,_errno
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mnegl $1,r0
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jmp (r2)
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