[ARM] Fix sys_sendto and sys_recvfrom 6-arg syscalls
Rather than providing more wrappers for 6-arg syscalls, arrange for
them to be supported as standard. This just means that we always
store the 6th argument on the stack, rather than in the wrappers.
This means we eliminate the wrappers for:
* sys_futex
* sys_arm_fadvise64_64
* sys_mbind
* sys_ipc
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 2ad4aa2..55076a7 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -131,7 +131,7 @@
.long sys_wait4
/* 115 */ .long sys_swapoff
.long sys_sysinfo
- .long sys_ipc_wrapper
+ .long sys_ipc
.long sys_fsync
.long sys_sigreturn_wrapper
/* 120 */ .long sys_clone_wrapper
@@ -254,7 +254,7 @@
.long sys_fremovexattr
.long sys_tkill
.long sys_sendfile64
-/* 240 */ .long sys_futex_wrapper
+/* 240 */ .long sys_futex
.long sys_sched_setaffinity
.long sys_sched_getaffinity
.long sys_io_setup
@@ -284,7 +284,7 @@
.long sys_fstatfs64
.long sys_tgkill
.long sys_utimes
-/* 270 */ .long sys_arm_fadvise64_64_wrapper
+/* 270 */ .long sys_arm_fadvise64_64
.long sys_pciconfig_iobase
.long sys_pciconfig_read
.long sys_pciconfig_write
@@ -333,7 +333,7 @@
.long sys_inotify_init
.long sys_inotify_add_watch
.long sys_inotify_rm_watch
- .long sys_mbind_wrapper
+ .long sys_mbind
/* 320 */ .long sys_get_mempolicy
.long sys_set_mempolicy
__syscall_end:
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index f7f1830..e2b4299 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -145,7 +145,7 @@
#endif
enable_irq
- str r4, [sp, #-S_OFF]! @ push fifth arg
+ stmdb sp!, {r4, r5} @ push fifth and sixth args
get_thread_info tsk
ldr ip, [tsk, #TI_FLAGS] @ check for syscall tracing
@@ -204,7 +204,7 @@
* Special system call wrappers
*/
@ r0 = syscall number
-@ r5 = syscall table
+@ r8 = syscall table
.type sys_syscall, #function
sys_syscall:
eor scno, r0, #__NR_SYSCALL_BASE
@@ -255,22 +255,6 @@
ldr r2, [sp, #S_OFF + S_SP]
b do_sigaltstack
-sys_futex_wrapper:
- str r5, [sp, #4] @ push sixth arg
- b sys_futex
-
-sys_arm_fadvise64_64_wrapper:
- str r5, [sp, #4] @ push r5 to stack
- b sys_arm_fadvise64_64
-
-sys_mbind_wrapper:
- str r5, [sp, #4]
- b sys_mbind
-
-sys_ipc_wrapper:
- str r5, [sp, #4] @ push sixth arg
- b sys_ipc
-
/*
* Note: off_4k (r5) is always units of 4K. If we can't do the requested
* offset, we return EINVAL.
