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authorArnd Bergmann <arnd@arndb.de>2019-02-18 17:30:06 +0100
committerArnd Bergmann <arnd@arndb.de>2019-02-19 21:27:32 +0100
commitc8ce48f06503eee20f189eed5b2aa736272b7344 (patch)
tree6da73bd0e00d4b3f0dea996dca4e23446851794c /arch/arc/include
parent80d7da1cac62f28b3df4880e8143b39cabb4b59a (diff)
downloadlinux-c8ce48f06503eee20f189eed5b2aa736272b7344.tar.gz
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/arc/include')
-rw-r--r--arch/arc/include/uapi/asm/unistd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h
index 6a1a62a979dd..5eafa1115162 100644
--- a/arch/arc/include/uapi/asm/unistd.h
+++ b/arch/arc/include/uapi/asm/unistd.h
@@ -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