aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/kernel/scall64-o32.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/kernel/scall64-o32.S')
-rw-r--r--arch/mips/kernel/scall64-o32.S93
1 files changed, 50 insertions, 43 deletions
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 54228553691..f1343ccd7ed 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -10,7 +10,7 @@
*
* Hairy, the userspace application uses a different argument passing
* convention than the kernel, so we have to translate things from o32
- * to ABI64 calling convention. 64-bit syscalls are also processed
+ * to ABI64 calling convention. 64-bit syscalls are also processed
* here for now.
*/
#include <linux/errno.h>
@@ -24,7 +24,7 @@
#include <asm/unistd.h>
#include <asm/sysmips.h>
- .align 5
+ .align 5
NESTED(handle_sys, PT_SIZE, sp)
.set noat
SAVE_SOME
@@ -53,7 +53,7 @@ NESTED(handle_sys, PT_SIZE, sp)
sll a3, a3, 0
dsll t0, v0, 3 # offset into table
- ld t2, (sys_call_table - (__NR_O32_Linux * 8))(t0)
+ ld t2, (sys32_call_table - (__NR_O32_Linux * 8))(t0)
sd a3, PT_R26(sp) # save a3 for syscall restarting
@@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp)
PTR 4b, bad_stack
.previous
- li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
+ li t1, _TIF_WORK_SYSCALL_ENTRY
LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
and t0, t1, t0
bnez t0, trace_a_syscall
@@ -99,18 +99,7 @@ NESTED(handle_sys, PT_SIZE, sp)
1: sd v0, PT_R2(sp) # result
o32_syscall_exit:
- local_irq_disable # make need_resched and
- # signals dont change between
- # sampling and return
- LONG_L a2, TI_FLAGS($28)
- li t0, _TIF_ALLWORK_MASK
- and t0, a2, t0
- bnez t0, o32_syscall_exit_work
-
- j restore_partial
-
-o32_syscall_exit_work:
- j syscall_exit_work_partial
+ j syscall_exit_partial
/* ------------------------------------------------------------------------ */
@@ -123,7 +112,20 @@ trace_a_syscall:
move s0, t2 # Save syscall pointer
move a0, sp
- jal syscall_trace_enter
+ /*
+ * syscall number is in v0 unless we called syscall(__NR_###)
+ * where the real syscall number is in a0
+ * note: NR_syscall is the first O32 syscall but the macro is
+ * only defined when compiling with -mabi=32 (CONFIG_32BIT)
+ * therefore __NR_O32_Linux is used (4000)
+ */
+ addiu a1, v0, __NR_O32_Linux
+ bnez v0, 1f /* __NR_syscall at offset 0 */
+ lw a1, PT_R4(sp)
+
+1: jal syscall_trace_enter
+
+ bltz v0, 2f # seccomp failed? Skip syscall
move t0, s0
RESTORE_STATIC
@@ -147,7 +149,7 @@ trace_a_syscall:
sd t1, PT_R0(sp) # save it for syscall restarting
1: sd v0, PT_R2(sp) # result
- j syscall_exit
+2: j syscall_exit
/* ------------------------------------------------------------------------ */
@@ -179,7 +181,7 @@ LEAF(sys32_syscall)
beqz t0, einval # do not recurse
dsll t1, t0, 3
beqz v0, einval
- ld t2, sys_call_table(t1) # syscall routine
+ ld t2, sys32_call_table(t1) # syscall routine
move a0, a1 # shift argument registers
move a1, a2
@@ -196,16 +198,16 @@ LEAF(sys32_syscall)
jr t2
/* Unreached */
-einval: li v0, -ENOSYS
+einval: li v0, -ENOSYS
jr ra
END(sys32_syscall)
.align 3
- .type sys_call_table,@object
-sys_call_table:
+ .type sys32_call_table,@object
+EXPORT(sys32_call_table)
PTR sys32_syscall /* 4000 */
PTR sys_exit
- PTR sys_fork
+ PTR __sys_fork
PTR sys_read
PTR sys_write
PTR compat_sys_open /* 4005 */
@@ -214,7 +216,7 @@ sys_call_table:
PTR sys_creat
PTR sys_link
PTR sys_unlink /* 4010 */
- PTR sys32_execve
+ PTR compat_sys_execve
PTR sys_chdir
PTR compat_sys_time
PTR sys_mknod
@@ -295,8 +297,8 @@ sys_call_table:
PTR compat_sys_old_readdir
PTR sys_mips_mmap /* 4090 */
PTR sys_munmap
- PTR sys_truncate
- PTR sys_ftruncate
+ PTR compat_sys_truncate
+ PTR compat_sys_ftruncate
PTR sys_fchmod
PTR sys_fchown /* 4095 */
PTR sys_getpriority
@@ -320,10 +322,10 @@ sys_call_table:
PTR compat_sys_wait4
PTR sys_swapoff /* 4115 */
PTR compat_sys_sysinfo
- PTR sys_32_ipc
+ PTR compat_sys_ipc
PTR sys_fsync
PTR sys32_sigreturn
- PTR sys32_clone /* 4120 */
+ PTR __sys_clone /* 4120 */
PTR sys_setdomainname
PTR sys_newuname
PTR sys_ni_syscall /* sys_modify_ldt */
@@ -340,7 +342,7 @@ sys_call_table:
PTR sys_bdflush
PTR sys_sysfs /* 4135 */
PTR sys_32_personality
- PTR sys_ni_syscall /* for afs_syscall */
+ PTR sys_ni_syscall /* for afs_syscall */
PTR sys_setfsuid
PTR sys_setfsgid
PTR sys_32_llseek /* 4140 */
@@ -363,12 +365,12 @@ sys_call_table:
PTR sys_munlockall
PTR sys_sched_setparam
PTR sys_sched_getparam
- PTR sys_sched_setscheduler /* 4160 */
+ PTR sys_sched_setscheduler /* 4160 */
PTR sys_sched_getscheduler
PTR sys_sched_yield
PTR sys_sched_get_priority_max
PTR sys_sched_get_priority_min
- PTR sys_32_sched_rr_get_interval /* 4165 */
+ PTR compat_sys_sched_rr_get_interval /* 4165 */
PTR compat_sys_nanosleep
PTR sys_mremap
PTR sys_accept
@@ -397,20 +399,20 @@ sys_call_table:
PTR sys_getresgid
PTR sys_prctl
PTR sys32_rt_sigreturn
- PTR sys_32_rt_sigaction
- PTR sys_32_rt_sigprocmask /* 4195 */
- PTR sys_32_rt_sigpending
+ PTR compat_sys_rt_sigaction
+ PTR compat_sys_rt_sigprocmask /* 4195 */
+ PTR compat_sys_rt_sigpending
PTR compat_sys_rt_sigtimedwait
- PTR sys_32_rt_sigqueueinfo
- PTR sys32_rt_sigsuspend
+ PTR compat_sys_rt_sigqueueinfo
+ PTR compat_sys_rt_sigsuspend
PTR sys_32_pread /* 4200 */
PTR sys_32_pwrite
PTR sys_chown
PTR sys_getcwd
PTR sys_capget
PTR sys_capset /* 4205 */
- PTR sys32_sigaltstack
- PTR sys_32_sendfile
+ PTR compat_sys_sigaltstack
+ PTR compat_sys_sendfile
PTR sys_ni_syscall
PTR sys_ni_syscall
PTR sys_mips_mmap2 /* 4210 */
@@ -441,7 +443,7 @@ sys_call_table:
PTR sys_fremovexattr /* 4235 */
PTR sys_tkill
PTR sys_sendfile64
- PTR sys_32_futex
+ PTR compat_sys_futex
PTR compat_sys_sched_setaffinity
PTR compat_sys_sched_getaffinity /* 4240 */
PTR compat_sys_io_setup
@@ -450,7 +452,7 @@ sys_call_table:
PTR compat_sys_io_submit
PTR sys_io_cancel /* 4245 */
PTR sys_exit_group
- PTR sys32_lookup_dcookie
+ PTR compat_sys_lookup_dcookie
PTR sys_epoll_create
PTR sys_epoll_ctl
PTR sys_epoll_wait /* 4250 */
@@ -481,7 +483,7 @@ sys_call_table:
PTR compat_sys_mq_notify /* 4275 */
PTR compat_sys_mq_getsetattr
PTR sys_ni_syscall /* sys_vserver */
- PTR sys_32_waitid
+ PTR compat_sys_waitid
PTR sys_ni_syscall /* available, was setaltroot */
PTR sys_add_key /* 4280 */
PTR sys_request_key
@@ -540,7 +542,7 @@ sys_call_table:
PTR sys_accept4
PTR compat_sys_recvmmsg /* 4335 */
PTR sys_fanotify_init
- PTR sys_32_fanotify_mark
+ PTR compat_sys_fanotify_mark
PTR sys_prlimit64
PTR sys_name_to_handle_at
PTR compat_sys_open_by_handle_at /* 4340 */
@@ -550,4 +552,9 @@ sys_call_table:
PTR sys_setns
PTR compat_sys_process_vm_readv /* 4345 */
PTR compat_sys_process_vm_writev
- .size sys_call_table,.-sys_call_table
+ PTR sys_kcmp
+ PTR sys_finit_module
+ PTR sys_sched_setattr
+ PTR sys_sched_getattr /* 4350 */
+ PTR sys_renameat2
+ .size sys32_call_table,.-sys32_call_table
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 22:58:21 +0000