Retro68/gcc/newlib/libc/sys/sparc64/cerror.S
2012-03-27 01:51:53 +02:00

30 lines
621 B
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 <sys/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
stw %o0,[%g1+%lo (ASM_SYMBOL (errno))]
jmpl %o7+8,%g0
mov -1,%o0
GLOBAL (ASM_PRIVATE_SYMBOL (cerror_r))
ASM_PRIVATE_SYMBOL (cerror_r):
stw %o0,[%o1]
jmpl %o7+8,%g0
mov -1,%o0