2005-04-17 00:20:36 +02:00
|
|
|
/* sclow.S: Low level special syscall handling.
|
|
|
|
|
* Basically these are cases where we can completely
|
|
|
|
|
* handle the system call without saving any state
|
|
|
|
|
* because we know that the process will not sleep.
|
|
|
|
|
*
|
|
|
|
|
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <asm/ptrace.h>
|
2005-09-09 20:35:55 +02:00
|
|
|
#include <asm/asm-offsets.h>
|
2005-04-17 00:20:36 +02:00
|
|
|
#include <asm/errno.h>
|
|
|
|
|
#include <asm/winmacro.h>
|
|
|
|
|
#include <asm/thread_info.h>
|
|
|
|
|
#include <asm/psr.h>
|
|
|
|
|
#include <asm/page.h>
|
|
|
|
|
|
|
|
|
|
#define CC_AND_RETT \
|
|
|
|
|
set PSR_C, %l4; \
|
|
|
|
|
andn %l0, %l4, %l4; \
|
|
|
|
|
wr %l4, 0x0, %psr; \
|
|
|
|
|
nop; nop; nop; \
|
|
|
|
|
jmp %l2; \
|
|
|
|
|
rett %l2 + 4;
|
|
|
|
|
|
|
|
|
|
#define SC_AND_RETT \
|
|
|
|
|
set PSR_C, %l4; \
|
|
|
|
|
or %l0, %l4, %l4; \
|
|
|
|
|
wr %l4, 0x0, %psr; \
|
|
|
|
|
nop; nop; nop; \
|
|
|
|
|
jmp %l2; \
|
|
|
|
|
rett %l2 + 4;
|
|
|
|
|
|
|
|
|
|
#define LABEL(func) func##_low
|
|
|
|
|
|
|
|
|
|
.globl LABEL(sunosnop)
|
|
|
|
|
LABEL(sunosnop):
|
|
|
|
|
CC_AND_RETT
|
|
|
|
|
|
|
|
|
|
#if (ASIZ_task_uid == 2 && ASIZ_task_euid == 2)
|
|
|
|
|
.globl LABEL(sunosgetuid)
|
|
|
|
|
LABEL(sunosgetuid):
|
|
|
|
|
LOAD_CURRENT(l4, l5)
|
|
|
|
|
ld [%l4 + TI_TASK], %l4
|
|
|
|
|
lduh [%l4 + AOFF_task_uid], %i0
|
|
|
|
|
lduh [%l4 + AOFF_task_euid], %i1
|
|
|
|
|
CC_AND_RETT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if (ASIZ_task_gid == 2 && ASIZ_task_egid == 2)
|
|
|
|
|
.globl LABEL(sunosgetgid)
|
|
|
|
|
LABEL(sunosgetgid):
|
|
|
|
|
LOAD_CURRENT(l4, l5)
|
|
|
|
|
ld [%l4 + TI_TASK], %l4
|
|
|
|
|
lduh [%l4 + AOFF_task_gid], %i0
|
|
|
|
|
lduh [%l4 + AOFF_task_egid], %i1
|
|
|
|
|
CC_AND_RETT
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
.globl LABEL(sunosmctl)
|
|
|
|
|
LABEL(sunosmctl):
|
|
|
|
|
mov 0, %i0
|
|
|
|
|
CC_AND_RETT
|
|
|
|
|
|
|
|
|
|
.globl LABEL(sunosgdtsize)
|
|
|
|
|
LABEL(sunosgdtsize):
|
|
|
|
|
mov 256, %i0
|
|
|
|
|
CC_AND_RETT
|
|
|
|
|
|
|
|
|
|
.globl LABEL(getpagesize)
|
|
|
|
|
LABEL(getpagesize):
|
|
|
|
|
set PAGE_SIZE, %i0
|
|
|
|
|
CC_AND_RETT
|
|
|
|
|
|
|
|
|
|
/* XXX sys_nice() XXX */
|
|
|
|
|
/* XXX sys_setpriority() XXX */
|
|
|
|
|
/* XXX sys_getpriority() XXX */
|
|
|
|
|
/* XXX sys_setregid() XXX */
|
|
|
|
|
/* XXX sys_setgid() XXX */
|
|
|
|
|
/* XXX sys_setreuid() XXX */
|
|
|
|
|
/* XXX sys_setuid() XXX */
|
|
|
|
|
/* XXX sys_setfsuid() XXX */
|
|
|
|
|
/* XXX sys_setfsgid() XXX */
|
|
|
|
|
/* XXX sys_setpgid() XXX */
|
|
|
|
|
/* XXX sys_getpgid() XXX */
|
|
|
|
|
/* XXX sys_setsid() XXX */
|
|
|
|
|
/* XXX sys_getsid() XXX */
|
