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| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2009-01-23 16:40:27 +0100 |
|---|---|---|
| committer | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-01-23 16:40:29 +0100 |
| commit | e34a6280419a24297e6603075ac5af6ce9f13562 (patch) | |
| tree | fe0c259274e9d57faa60930044edb39453e5e39b /arch/s390/kernel/compat_wrapper.S | |
| parent | 179cb81aa1e9dc5444f678a6dd4dbb90c60322e1 (diff) | |
| download | linux-e34a6280419a24297e6603075ac5af6ce9f13562.tar.gz linux-e34a6280419a24297e6603075ac5af6ce9f13562.tar.bz2 linux-e34a6280419a24297e6603075ac5af6ce9f13562.zip | |
[S390] Add missing compat system call wrappers.
Add wrapper functions for the following compat system calls:
* readahead
* sendfile64
* tkill
* tgkill
* keyctl
This ensures that the high order bits of the parameter registers are correctly
sign extended.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/compat_wrapper.S')
| -rw-r--r-- | arch/s390/kernel/compat_wrapper.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 6035cd20c7a7..62c706eb0de6 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1767,3 +1767,41 @@ sys_dup3_wrapper: sys_epoll_create1_wrapper: lgfr %r2,%r2 # int jg sys_epoll_create1 # branch to system call + + .globl sys32_readahead_wrapper +sys32_readahead_wrapper: + lgfr %r2,%r2 # int + llgfr %r3,%r3 # u32 + llgfr %r4,%r4 # u32 + lgfr %r5,%r5 # s32 + jg sys32_readahead # branch to system call + + .globl sys32_sendfile64_wrapper +sys32_sendfile64_wrapper: + lgfr %r2,%r2 # int + lgfr %r3,%r3 # int + llgtr %r4,%r4 # compat_loff_t * + lgfr %r5,%r5 # s32 + jg sys32_sendfile64 # branch to system call + + .globl sys_tkill_wrapper +sys_tkill_wrapper: + lgfr %r2,%r2 # pid_t + lgfr %r3,%r3 # int + jg sys_tkill # branch to system call + + .globl sys_tgkill_wrapper +sys_tgkill_wrapper: + lgfr %r2,%r2 # pid_t + lgfr %r3,%r3 # pid_t + lgfr %r4,%r4 # int + jg sys_tgkill # branch to system call + + .globl compat_sys_keyctl_wrapper +compat_sys_keyctl_wrapper: + llgfr %r2,%r2 # u32 + llgfr %r3,%r3 # u32 + llgfr %r4,%r4 # u32 + llgfr %r5,%r5 # u32 + llgfr %r6,%r6 # u32 + jg compat_sys_keyctl # branch to system call |