b6b707d9df
The system call puts the time in a pair of registers, not in the timeval structure. Add code to move the time to the structure, so programs see the correct time, not garbage. This fixes our example programs that use the time as a random seed.
19 lines
414 B
ArmAsm
19 lines
414 B
ArmAsm
! The system call checks the timeval pointer but doesn't store the
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! time there. If the pointer wasn't NULL, then the system call
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! returns the time in a pair of registers.
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.sect .text
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.define _gettimeofday
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_gettimeofday:
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mov eax, 116
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int 0x80
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jb .set_errno
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mov ebx, 4(esp) ! timeval pointer
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test ebx, ebx
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je 1f
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mov 0(ebx), eax ! seconds
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mov 4(ebx), edx ! microseconds
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1:
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mov eax, 0 ! return 0
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ret
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