Commit c8ce48f0 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

asm-generic: Make time32 syscall numbers optional 



We don't want new architectures to even provide the old 32-bit time_t
based system calls any more, or define the syscall number macros.

Add a new __ARCH_WANT_TIME32_SYSCALLS macro that gets enabled for all
existing 32-bit architectures using the generic system call table,
so we don't change any current behavior.
Since this symbol is evaluated in user space as well, we cannot use
a Kconfig CONFIG_* macro but have to define it in uapi/asm/unistd.h.

On 64-bit architectures, the same system call numbers mostly refer to
the system calls we want to keep, as they already pass 64-bit time_t.

As new architectures no longer provide these, we need new exceptions
in checksyscalls.sh.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 80d7da1c

arch/arc/include/uapi/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#define __ARCH_WANT_SYS_CLONE

#define __ARCH_WANT_SYS_VFORK

#define __ARCH_WANT_SYS_FORK

#define __ARCH_WANT_TIME32_SYSCALLS



#define sys_mmap2 sys_mmap_pgoff

arch/arm64/include/uapi/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -18,5 +18,6 @@ 
#define __ARCH_WANT_RENAMEAT

#define __ARCH_WANT_NEW_STAT

#define __ARCH_WANT_SET_GET_RLIMIT

#define __ARCH_WANT_TIME32_SYSCALLS



#include <asm-generic/unistd.h>

arch/c6x/include/uapi/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#define __ARCH_WANT_STAT64

#define __ARCH_WANT_SET_GET_RLIMIT

#define __ARCH_WANT_SYS_CLONE

#define __ARCH_WANT_TIME32_SYSCALLS



/* Use the standard ABI for syscalls. */

#include <asm-generic/unistd.h>

arch/csky/include/uapi/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 


#define __ARCH_WANT_SYS_CLONE

#define __ARCH_WANT_SET_GET_RLIMIT

#define __ARCH_WANT_TIME32_SYSCALLS

#include <asm-generic/unistd.h>



#define __NR_set_thread_area	(__NR_arch_specific_syscall + 0)

arch/h8300/include/uapi/asm/unistd.h

+1 −0
Original line number Diff line number Diff line
@@ -3,5 +3,6 @@ 
#define __ARCH_WANT_RENAMEAT

#define __ARCH_WANT_STAT64

#define __ARCH_WANT_SET_GET_RLIMIT

#define __ARCH_WANT_TIME32_SYSCALLS



#include <asm-generic/unistd.h>

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