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use direct syscall rather than write function in posix_spawn child
[musl]
/
src
/
thread
/
sh
/
syscall_cp.s
1
.text
2
.global __syscall_cp_asm
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.type __syscall_cp_asm, @function
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__syscall_cp_asm:
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.global __cp_begin
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__cp_begin:
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mov.l @r4, r4
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tst r4, r4
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bt 2f
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mov.l L1, r0
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braf r0
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nop
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1:
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.align 2
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L1: .long __cancel@PLT-(1b-.)
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2: mov r5, r3
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mov r6, r4
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mov r7, r5
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mov.l @r15, r6
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mov.l @(4,r15), r7
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mov.l @(8,r15), r0
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mov.l @(12,r15), r1
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trapa #22
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.global __cp_end
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__cp_end:
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! work around hardware bug
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or r0, r0
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or r0, r0
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or r0, r0
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or r0, r0
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or r0, r0
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rts
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nop