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| author | Arnd Bergmann <arnd@arndb.de> | 2019-02-18 17:30:06 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2019-02-19 21:27:32 +0100 |
| commit | c8ce48f06503eee20f189eed5b2aa736272b7344 (patch) | |
| tree | 6da73bd0e00d4b3f0dea996dca4e23446851794c /arch/riscv | |
| parent | 80d7da1cac62f28b3df4880e8143b39cabb4b59a (diff) | |
| download | linux-c8ce48f06503eee20f189eed5b2aa736272b7344.tar.bz2 | |
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: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/uapi/asm/unistd.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h index d9340c52e7ad..486a288b454c 100644 --- a/arch/riscv/include/uapi/asm/unistd.h +++ b/arch/riscv/include/uapi/asm/unistd.h @@ -19,6 +19,9 @@ #define __ARCH_WANT_NEW_STAT #endif /* __LP64__ */ #define __ARCH_WANT_SET_GET_RLIMIT +#ifndef __LP64__ +#define __ARCH_WANT_TIME32_SYSCALLS +#endif #include <asm-generic/unistd.h> |