From ecf7e0a4ad1528710c90f0a6f4285741ac525f6e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 11 Jan 2019 15:09:11 +0100 Subject: alpha: add generic get{eg,eu,g,p,u,pp}id() syscalls Alpha has traditionally followed the OSF1 calling conventions here, with its getxpid, getxuid, getxgid system calls returning two different values in separate registers. Following what glibc has done here, we can define getpid, getuid and getgid to be aliases for getxpid, getxuid and getxgid respectively, and add new system call numbers for getppid, geteuid and getegid. Signed-off-by: Arnd Bergmann --- arch/alpha/include/asm/unistd.h | 11 ----------- arch/alpha/include/uapi/asm/unistd.h | 5 +++++ arch/alpha/kernel/syscalls/syscall.tbl | 3 +++ 3 files changed, 8 insertions(+), 11 deletions(-) (limited to 'arch/alpha') diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h index 31ad350b58a09..986f5da9b7d8b 100644 --- a/arch/alpha/include/asm/unistd.h +++ b/arch/alpha/include/asm/unistd.h @@ -19,15 +19,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * Ignore legacy syscalls that we don't use. - */ -#define __IGNORE_getegid -#define __IGNORE_geteuid -#define __IGNORE_getgid -#define __IGNORE_getpid -#define __IGNORE_getppid -#define __IGNORE_getuid - - #endif /* _ALPHA_UNISTD_H */ diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h index 4507071f995fb..71fd5db06866d 100644 --- a/arch/alpha/include/uapi/asm/unistd.h +++ b/arch/alpha/include/uapi/asm/unistd.h @@ -7,6 +7,11 @@ #define __NR_umount __NR_umount2 #define __NR_osf_shmat __NR_shmat +/* These return an extra value but can be used as aliases */ +#define __NR_getpid __NR_getxpid +#define __NR_getuid __NR_getxuid +#define __NR_getgid __NR_getxgid + #include #endif /* _UAPI_ALPHA_UNISTD_H */ diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl index 2a0ec5a08f9ad..340b88dd397ec 100644 --- a/arch/alpha/kernel/syscalls/syscall.tbl +++ b/arch/alpha/kernel/syscalls/syscall.tbl @@ -458,3 +458,6 @@ 527 common rseq sys_rseq 528 common statfs64 sys_statfs64 529 common fstatfs64 sys_fstatfs64 +530 common getegid sys_getegid +531 common geteuid sys_geteuid +532 common getppid sys_getppid -- cgit v1.2.3