source: trunk/libs/newlib/src/libgloss/sparc/libsys/cerror.S @ 653

! Set errno.
! This function is called by all the syscall stubs.
!
! FIXME: We assume errno is the first member of struct _reent.
! Not sure what to do about this.

#include "syscallasm.h"

        DATA_SECTION
        ALIGN (4)
        GLOBAL (ASM_SYMBOL (errno))     ! FIXME: ASM_PRIVATE_SYMBOL ?
ASM_SYMBOL (errno):
        WORD (0)

        TEXT_SECTION
        ALIGN (4)

        GLOBAL (ASM_PRIVATE_SYMBOL (cerror))
ASM_PRIVATE_SYMBOL (cerror):
        sethi   %hi (ASM_SYMBOL (errno)),%g1
        st      %o0,[%g1+%lo (ASM_SYMBOL (errno))]
        jmpl    %o7+8,%g0
        mov     -1,%o0

        GLOBAL (ASM_PRIVATE_SYMBOL (cerror_r))
ASM_PRIVATE_SYMBOL (cerror_r):
        st      %o0,[%o1]
        jmpl    %o7+8,%g0
        mov     -1,%o0

! Since all system calls need this file, we put various state globals
! here as well.

        DATA_SECTION

! CURBRK contains the current top of allocated space.
! END is a private symbol in svr4, but a public one in sunos4.
! FIXME: CURBRK is 4 bytes for now.

        ALIGN (4)
        GLOBAL (ASM_PRIVATE_SYMBOL (curbrk))
ASM_PRIVATE_SYMBOL (curbrk):
#ifdef SVR4
        WORD (ASM_PRIVATE_SYMBOL (end))
#else
        WORD (ASM_SYMBOL (end))
#endif