mirror of https://gitee.com/openkylin/qemu.git
33 lines
884 B
ArmAsm
33 lines
884 B
ArmAsm
/* derived from glibc sysdeps/unix/sysv/linux/ia64/sysdep.S */
|
|
|
|
#define __ASSEMBLY__
|
|
|
|
#include <asm/asmmacro.h>
|
|
#include <asm/unistd.h>
|
|
|
|
ENTRY(__syscall_error)
|
|
.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(0)
|
|
alloc r33=ar.pfs, 0, 4, 0, 0
|
|
mov r32=rp
|
|
.body
|
|
mov r35=r8
|
|
mov r34=r1
|
|
;;
|
|
br.call.sptk.many b0 = __errno_location
|
|
.Lret0: /* force new bundle */
|
|
st4 [r8]=r35
|
|
mov r1=r34
|
|
mov rp=r32
|
|
mov r8=-1
|
|
mov ar.pfs=r33
|
|
br.ret.sptk.few b0
|
|
END(__syscall_error)
|
|
|
|
GLOBAL_ENTRY(__ia64_syscall)
|
|
mov r15=r37 /* syscall number */
|
|
break __BREAK_SYSCALL
|
|
cmp.eq p6,p0=-1,r10 /* r10 = -1 on error */
|
|
(p6) br.cond.spnt.few __syscall_error
|
|
br.ret.sptk.few b0
|
|
.endp __ia64_syscall
|