X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Farch%2Fmips%2Fkernel%2Fscall64-o32.S;h=b77052ec6fb21fa51ce3c1e845947f75740b3fee;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=d07b210fbeff3667f49737dbec9d9d30d3f119ed;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/kernel/arch/mips/kernel/scall64-o32.S b/kernel/arch/mips/kernel/scall64-o32.S
index d07b210fb..b77052ec6 100644
--- a/kernel/arch/mips/kernel/scall64-o32.S
+++ b/kernel/arch/mips/kernel/scall64-o32.S
@@ -69,16 +69,17 @@ NESTED(handle_sys, PT_SIZE, sp)
 	daddu	t1, t0, 32
 	bltz	t1, bad_stack
 
-1:	lw	a4, 16(t0)		# argument #5 from usp
-2:	lw	a5, 20(t0)		# argument #6 from usp
-3:	lw	a6, 24(t0)		# argument #7 from usp
-4:	lw	a7, 28(t0)		# argument #8 from usp (for indirect syscalls)
+load_a4: lw	a4, 16(t0)		# argument #5 from usp
+load_a5: lw	a5, 20(t0)		# argument #6 from usp
+load_a6: lw	a6, 24(t0)		# argument #7 from usp
+load_a7: lw	a7, 28(t0)		# argument #8 from usp
+loads_done:
 
 	.section __ex_table,"a"
-	PTR	1b, bad_stack
-	PTR	2b, bad_stack
-	PTR	3b, bad_stack
-	PTR	4b, bad_stack
+	PTR	load_a4, bad_stack_a4
+	PTR	load_a5, bad_stack_a5
+	PTR	load_a6, bad_stack_a6
+	PTR	load_a7, bad_stack_a7
 	.previous
 
 	li	t1, _TIF_WORK_SYSCALL_ENTRY
@@ -86,6 +87,7 @@ NESTED(handle_sys, PT_SIZE, sp)
 	and	t0, t1, t0
 	bnez	t0, trace_a_syscall
 
+syscall_common:
 	jalr	t2			# Do The Real Thing (TM)
 
 	li	t0, -EMAXERRNO - 1	# error?
@@ -129,9 +131,9 @@ trace_a_syscall:
 
 1:	jal	syscall_trace_enter
 
-	bltz	v0, 2f			# seccomp failed? Skip syscall
+	bltz	v0, 1f			# seccomp failed? Skip syscall
 
-	move	t0, s0
+	move	t2, s0
 	RESTORE_STATIC
 	ld	a0, PT_R4(sp)		# Restore argument registers
 	ld	a1, PT_R5(sp)
@@ -141,19 +143,9 @@ trace_a_syscall:
 	ld	a5, PT_R9(sp)
 	ld	a6, PT_R10(sp)
 	ld	a7, PT_R11(sp)		# For indirect syscalls
-	jalr	t0
+	j	syscall_common
 
-	li	t0, -EMAXERRNO - 1	# error?
-	sltu	t0, t0, v0
-	sd	t0, PT_R7(sp)		# set error flag
-	beqz	t0, 1f
-
-	ld	t1, PT_R2(sp)		# syscall number
-	dnegu	v0			# error
-	sd	t1, PT_R0(sp)		# save it for syscall restarting
-1:	sd	v0, PT_R2(sp)		# result
-
-2:	j	syscall_exit
+1:	j	syscall_exit
 
 /* ------------------------------------------------------------------------ */
 
@@ -167,6 +159,22 @@ bad_stack:
 	sd	t0, PT_R7(sp)
 	j	o32_syscall_exit
 
+bad_stack_a4:
+	li	a4, 0
+	b	load_a5
+
+bad_stack_a5:
+	li	a5, 0
+	b	load_a6
+
+bad_stack_a6:
+	li	a6, 0
+	b	load_a7
+
+bad_stack_a7:
+	li	a7, 0
+	b	loads_done
+
 not_o32_scall:
 	/*
 	 * This is not an o32 compatibility syscall, pass it on
@@ -383,7 +391,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_connect			/* 4170 */
 	PTR	sys_getpeername
 	PTR	sys_getsockname
-	PTR	sys_getsockopt
+	PTR	compat_sys_getsockopt
 	PTR	sys_listen
 	PTR	compat_sys_recv			/* 4175 */
 	PTR	compat_sys_recvfrom
@@ -492,7 +500,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_ni_syscall			/* available, was setaltroot */
 	PTR	sys_add_key			/* 4280 */
 	PTR	sys_request_key
-	PTR	sys_keyctl
+	PTR	compat_sys_keyctl
 	PTR	sys_set_thread_area
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch		/* 4285 */
@@ -567,4 +575,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 4355 */
 	PTR	compat_sys_execveat
+	PTR	sys_userfaultfd
+	PTR	sys_membarrier
+	PTR	sys_mlock2
 	.size	sys32_call_table,.-sys32_call_table