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| author | Ism Hong <ism.hong@gmail.com> | 2025-01-06 14:52:27 +0300 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2025-01-11 14:55:47 +0300 |
| commit | bc7584e009c39375294794f7ca751a6b2622c425 (patch) | |
| tree | dcf6cecda80df56afb1c6d682e00a0380c5036c7 | |
| parent | 42a39e4aa59a10aa4afdc14194f3ee63d2db94e1 (diff) | |
| download | linux-bc7584e009c39375294794f7ca751a6b2622c425.tar.xz | |
mips: fix shmctl/semctl/msgctl syscall for o32
The commit 275f22148e87 ("ipc: rename old-style shmctl/semctl/msgctl
syscalls") switched various architectures to use sys_old_*ctl() with
ipc_parse_version, including mips n32/n64. However, for mips o32, commit
0d6040d46817 ("arch: add split IPC system calls where needed") added
separate IPC syscalls without properly using the old-style handlers.
This causes applications using uClibc-ng to fail with -EINVAL when
calling semctl/shmctl/msgctl with IPC_64 flag, as uClibc-ng uses the
syscall numbers from kernel headers to determine whether to use the IPC
multiplexer or split syscalls. In contrast, glibc is unaffected as it
uses a unified feature test macro __ASSUME_DIRECT_SYSVIPC_SYSCALLS
(disabled for mips-o32) to make this decision.
Fix this by switching the o32 ABI entries for semctl, shmctl and msgctl
to use the old-style handlers, matching the behavior of other
architectures and fixing compatibility with uClibc-ng.
Signed-off-by: Ism Hong <ism.hong@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| -rw-r--r-- | arch/mips/kernel/syscalls/syscall_o32.tbl | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 349b8aad1159..e8a57c206758 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -382,15 +382,15 @@ 368 o32 io_pgetevents sys_io_pgetevents_time32 compat_sys_io_pgetevents # room for arch specific calls 393 o32 semget sys_semget -394 o32 semctl sys_semctl compat_sys_semctl +394 o32 semctl sys_old_semctl compat_sys_old_semctl 395 o32 shmget sys_shmget -396 o32 shmctl sys_shmctl compat_sys_shmctl +396 o32 shmctl sys_old_shmctl compat_sys_old_shmctl 397 o32 shmat sys_shmat compat_sys_shmat 398 o32 shmdt sys_shmdt 399 o32 msgget sys_msgget 400 o32 msgsnd sys_msgsnd compat_sys_msgsnd 401 o32 msgrcv sys_msgrcv compat_sys_msgrcv -402 o32 msgctl sys_msgctl compat_sys_msgctl +402 o32 msgctl sys_old_msgctl compat_sys_old_msgctl 403 o32 clock_gettime64 sys_clock_gettime sys_clock_gettime 404 o32 clock_settime64 sys_clock_settime sys_clock_settime 405 o32 clock_adjtime64 sys_clock_adjtime sys_clock_adjtime |