From 06436acf819d9e6ada7be3ca977d5c0a23d3f138 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Wed, 15 May 2019 15:20:58 -0300 Subject: 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 --- sysdeps/unix/sysv/linux/alpha/kernel-features.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'sysdeps/unix/sysv/linux/alpha/kernel-features.h') diff --git a/sysdeps/unix/sysv/linux/alpha/kernel-features.h b/sysdeps/unix/sysv/linux/alpha/kernel-features.h index 3928b4b..d12916c 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 */ -- cgit v1.1