47 lines
1 KiB
ArmAsm
47 lines
1 KiB
ArmAsm
! Set errno.
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! This function is called by all the syscall stubs.
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!
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! FIXME: We assume errno is the first member of struct _reent.
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! Not sure what to do about this.
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#include "syscallasm.h"
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DATA_SECTION
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ALIGN (4)
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GLOBAL (ASM_SYMBOL (errno)) ! FIXME: ASM_PRIVATE_SYMBOL ?
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ASM_SYMBOL (errno):
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WORD (0)
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TEXT_SECTION
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ALIGN (4)
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GLOBAL (ASM_PRIVATE_SYMBOL (cerror))
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ASM_PRIVATE_SYMBOL (cerror):
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sethi %hi (ASM_SYMBOL (errno)),%g1
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st %o0,[%g1+%lo (ASM_SYMBOL (errno))]
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jmpl %o7+8,%g0
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mov -1,%o0
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GLOBAL (ASM_PRIVATE_SYMBOL (cerror_r))
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ASM_PRIVATE_SYMBOL (cerror_r):
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st %o0,[%o1]
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jmpl %o7+8,%g0
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mov -1,%o0
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! Since all system calls need this file, we put various state globals
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! here as well.
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DATA_SECTION
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! CURBRK contains the current top of allocated space.
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! END is a private symbol in svr4, but a public one in sunos4.
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! FIXME: CURBRK is 4 bytes for now.
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ALIGN (4)
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GLOBAL (ASM_PRIVATE_SYMBOL (curbrk))
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ASM_PRIVATE_SYMBOL (curbrk):
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#ifdef SVR4
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WORD (ASM_PRIVATE_SYMBOL (end))
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#else
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WORD (ASM_SYMBOL (end))
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#endif
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