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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-05-15 15:20:58 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-10-17 11:04:59 -0300 |
| commit | 06436acf819d9e6ada7be3ca977d5c0a23d3f138 (patch) | |
| tree | c1fa0e3ac981c845d83b2cd985c563c7059f55e9 /sysdeps/unix/sysv/linux/alpha/kernel-features.h | |
| parent | 7d3db434f910c23591f748a6d0ac3548af1048bb (diff) | |
| download | glibc-06436acf819d9e6ada7be3ca977d5c0a23d3f138.tar.gz glibc-06436acf819d9e6ada7be3ca977d5c0a23d3f138.tar.xz glibc-06436acf819d9e6ada7be3ca977d5c0a23d3f138.zip | |
ipc: Refactor sysvipc internal definitions
This patch refactor the internal sysvipc in two main points:
1. Add a new __ASSUME_SYSVIPC_DEFAULT_IPC_64 to infer the __IPC_64
value to be used along either the multiplexed __NR_ipc or wired-up
syscall. The defaut value assumed for __IPC_64 is also changed
from 0x100 to 0x0, aligning with Linux generic UAPI. The idea
is to simplify the Linux 5.1 wire-up for sysvipc syscalls for
some 32-bit ABIs (which expectes __IPC_64 being 0x0) and simplify
new ports (which will no longer need to add ipc_priv.h).
2. It also removes some duplicated internal definition used on compat
sysvipc symbols defined at ipc_priv.h (more specifically the
__old_ipc_perm, SEMCTL_ARG_ADDRESS, MSGRCV_ARGS, and
SEMTIMEDOP_IPC_ARGS). The idea is also to make it simpler to enable
the new wire-up sysvipc syscall provided by Linux v5.1.
There is no semantic change expected on any port. Checked with a build
against all affected ABIs.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/kernel-features.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/kernel-features.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/kernel-features.h b/sysdeps/unix/sysv/linux/alpha/kernel-features.h index 3928b4b62c..d12916c656 100644 --- a/sysdeps/unix/sysv/linux/alpha/kernel-features.h +++ b/sysdeps/unix/sysv/linux/alpha/kernel-features.h @@ -52,4 +52,7 @@ # undef __ASSUME_STATX #endif +/* Alpha requires old sysvipc even being a 64-bit architecture. */ +#undef __ASSUME_SYSVIPC_DEFAULT_IPC_64 + #endif /* _KERNEL_FEATURES_H */ |