xv6-65oo2/usys.S

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370 B
ArmAsm
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#include "syscall.h"
#include "traps.h"
#define STUB(name) \
.globl name; \
name: \
movl $SYS_ ## name, %eax; \
int $T_SYSCALL; \
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ret
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STUB(fork)
STUB(exit)
STUB(wait)
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STUB(pipe)
STUB(read)
STUB(write)
STUB(close)
STUB(kill)
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STUB(exec)
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STUB(open)
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STUB(mknod)
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STUB(unlink)
STUB(fstat)
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STUB(link)
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STUB(mkdir)
STUB(chdir)
STUB(dup)
STUB(getpid)
STUB(sbrk)