48 lines
1.0 KiB
ArmAsm
48 lines
1.0 KiB
ArmAsm
|
! 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
|