diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-12-17 18:23:10 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-12-17 18:23:31 +0000 |
| commit | 5a059f1ac0ed0c937257027aed5da50241f5ec2b (patch) | |
| tree | 492d0a8bf452167baa9b941edc1d8edf9577ed7b /arch | |
| parent | 99f5e9718185f07458ae70c2282c2153a2256c91 (diff) | |
[ARM] Add more syscalls
Add:
sys_unshare
sys_set_robust_list
sys_get_robust_list
sys_splice
sys_arm_sync_file_range
sys_tee
sys_vmsplice
sys_move_pages
sys_getcpu
Special note about sys_arm_sync_file_range(), which is implemented as:
asmlinkage long sys_arm_sync_file_range(int fd, unsigned int flags,
loff_t offset, loff_t nbytes)
{
return sys_sync_file_range(fd, offset, nbytes, flags);
}
We can't export sys_sync_file_range() directly on ARM because the
argument list someone picked does not fit in the available registers.
Would be nice if... there was an arch maintainer review mechanism for
new syscalls before they hit the kernel.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/calls.S | 24 | ||||
| -rw-r--r-- | arch/arm/kernel/sys_arm.c | 13 |
2 files changed, 31 insertions, 6 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index e8f74363328..f7598cbc7ec 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -110,7 +110,7 @@ CALL(sys_ni_syscall) /* was sys_profil */ CALL(sys_statfs) /* 100 */ CALL(sys_fstatfs) - CALL(sys_ni_syscall) + CALL(sys_ni_syscall) /* sys_ioperm */ CALL(OBSOLETE(ABI(sys_socketcall, sys_oabi_socketcall))) CALL(sys_syslog) CALL(sys_setitimer) @@ -132,7 +132,7 @@ /* 120 */ CALL(sys_clone_wrapper) CALL(sys_setdomainname) CALL(sys_newuname) - CALL(sys_ni_syscall) + CALL(sys_ni_syscall) /* modify_ldt */ CALL(sys_adjtimex) /* 125 */ CALL(sys_mprotect) CALL(sys_sigprocmask) @@ -146,7 +146,7 @@ CALL(sys_bdflush) /* 135 */ CALL(sys_sysfs) CALL(sys_personality) - CALL(sys_ni_syscall) /* CALL(_sys_afs_syscall) */ + CALL(sys_ni_syscall) /* reserved for afs_syscall */ CALL(sys_setfsuid16) CALL(sys_setfsgid16) /* 140 */ CALL(sys_llseek) @@ -175,7 +175,7 @@ CALL(sys_arm_mremap) CALL(sys_setresuid16) /* 165 */ CALL(sys_getresuid16) - CALL(sys_ni_syscall) + CALL(sys_ni_syscall) /* vm86 */ CALL(sys_ni_syscall) /* was sys_query_module */ CALL(sys_poll) CALL(sys_nfsservctl) @@ -197,8 +197,8 @@ /* 185 */ CALL(sys_capset) CALL(sys_sigaltstack_wrapper) CALL(sys_sendfile) - CALL(sys_ni_syscall) - CALL(sys_ni_syscall) + CALL(sys_ni_syscall) /* getpmsg */ + CALL(sys_ni_syscall) /* putpmsg */ /* 190 */ CALL(sys_vfork_wrapper) CALL(sys_getrlimit) CALL(sys_mmap2) @@ -344,6 +344,18 @@ CALL(sys_readlinkat) CALL(sys_fchmodat) CALL(sys_faccessat) +/* 335 */ CALL(sys_ni_syscall) /* eventually pselect6 */ + CALL(sys_ni_syscall) /* eventually ppoll */ + CALL(sys_unshare) + CALL(sys_set_robust_list) + CALL(sys_get_robust_list) +/* 340 */ CALL(sys_splice) + CALL(sys_arm_sync_file_range) + CALL(sys_tee) + CALL(sys_vmsplice) + CALL(sys_move_pages) +/* 345 */ CALL(sys_getcpu) + CALL(sys_ni_syscall) /* eventually epoll_pwait */ #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index 00c18d35913..3d4fcbc1627 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -328,3 +328,16 @@ asmlinkage long sys_arm_fadvise64_64(int fd, int advice, { return sys_fadvise64_64(fd, offset, len, advice); } + +/* + * Yet more syscall fsckage - we can't fit sys_sync_file_range's + * arguments into the available registers with EABI. So, let's + * create an ARM specific syscall for this which has _sane_ + * arguments. (This incidentally also has an ABI-independent + * argument layout.) + */ +asmlinkage long sys_arm_sync_file_range(int fd, unsigned int flags, + loff_t offset, loff_t nbytes) +{ + return sys_sync_file_range(fd, offset, nbytes, flags); +} |