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-rw-r--r--arch/sparc/kernel/syscalls.S32
1 files changed, 14 insertions, 18 deletions
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index 1d7e274f3f2b..7f5f65d0b3fd 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -212,24 +212,20 @@ linux_sparc_syscall:
2123: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] 2123: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
213ret_sys_call: 213ret_sys_call:
214 ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3 214 ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3
215 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
216 sra %o0, 0, %o0 215 sra %o0, 0, %o0
217 mov %ulo(TSTATE_XCARRY | TSTATE_ICARRY), %g2 216 mov %ulo(TSTATE_XCARRY | TSTATE_ICARRY), %g2
218 sllx %g2, 32, %g2 217 sllx %g2, 32, %g2
219 218
220 /* Check if force_successful_syscall_return()
221 * was invoked.
222 */
223 ldub [%g6 + TI_SYS_NOERROR], %l2
224 brnz,a,pn %l2, 80f
225 stb %g0, [%g6 + TI_SYS_NOERROR]
226
227 cmp %o0, -ERESTART_RESTARTBLOCK 219 cmp %o0, -ERESTART_RESTARTBLOCK
228 bgeu,pn %xcc, 1f 220 bgeu,pn %xcc, 1f
229 andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6 221 andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
23080: 222 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
223
2242:
225 stb %g0, [%g6 + TI_SYS_NOERROR]
231 /* System call success, clear Carry condition code. */ 226 /* System call success, clear Carry condition code. */
232 andn %g3, %g2, %g3 227 andn %g3, %g2, %g3
2283:
233 stx %g3, [%sp + PTREGS_OFF + PT_V9_TSTATE] 229 stx %g3, [%sp + PTREGS_OFF + PT_V9_TSTATE]
234 bne,pn %icc, linux_syscall_trace2 230 bne,pn %icc, linux_syscall_trace2
235 add %l1, 0x4, %l2 ! npc = npc+4 231 add %l1, 0x4, %l2 ! npc = npc+4
@@ -238,20 +234,20 @@ ret_sys_call:
238 stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] 234 stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
239 235
2401: 2361:
237 /* Check if force_successful_syscall_return()
238 * was invoked.
239 */
240 ldub [%g6 + TI_SYS_NOERROR], %l2
241 brnz,pn %l2, 2b
242 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
241 /* System call failure, set Carry condition code. 243 /* System call failure, set Carry condition code.
242 * Also, get abs(errno) to return to the process. 244 * Also, get abs(errno) to return to the process.
243 */ 245 */
244 andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6
245 sub %g0, %o0, %o0 246 sub %g0, %o0, %o0
246 or %g3, %g2, %g3
247 stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] 247 stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
248 stx %g3, [%sp + PTREGS_OFF + PT_V9_TSTATE] 248 ba,pt %xcc, 3b
249 bne,pn %icc, linux_syscall_trace2 249 or %g3, %g2, %g3
250 add %l1, 0x4, %l2 ! npc = npc+4
251 stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]
252 250
253 b,pt %xcc, rtrap
254 stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
255linux_syscall_trace2: 251linux_syscall_trace2:
256 call syscall_trace_leave 252 call syscall_trace_leave
257 add %sp, PTREGS_OFF, %o0 253 add %sp, PTREGS_OFF, %o0