diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2024-05-08 17:13:34 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2024-07-10 14:23:38 +0200 |
| commit | 505d66d1abfb90853e24ab6cbdf83b611473d6fc (patch) | |
| tree | 3af6512a4ddedb9fe9bba6217ab9621eb8d32a01 /tools/include | |
| parent | fbb5c0606fa4506e9085e7a62c9e0098e573ce7a (diff) | |
clone3: drop __ARCH_WANT_SYS_CLONE3 macro
When clone3() was introduced, it was not obvious how each architecture
deals with setting up the stack and keeping the register contents in
a fork()-like system call, so this was left for the architecture
maintainers to implement, with __ARCH_WANT_SYS_CLONE3 defined by those
that already implement it.
Five years later, we still have a few architectures left that are missing
clone3(), and the macro keeps getting in the way as it's fundamentally
different from all the other __ARCH_WANT_SYS_* macros that are meant
to provide backwards-compatibility with applications using older
syscalls that are no longer provided by default.
Address this by reversing the polarity of the macro, adding an
__ARCH_BROKEN_SYS_CLONE3 macro to all architectures that don't
already provide the syscall, and remove __ARCH_WANT_SYS_CLONE3
from all the other ones.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/uapi/asm-generic/unistd.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h index d983c48a3b6a..a00d53d02723 100644 --- a/tools/include/uapi/asm-generic/unistd.h +++ b/tools/include/uapi/asm-generic/unistd.h @@ -776,12 +776,8 @@ __SYSCALL(__NR_fsmount, sys_fsmount) __SYSCALL(__NR_fspick, sys_fspick) #define __NR_pidfd_open 434 __SYSCALL(__NR_pidfd_open, sys_pidfd_open) - -#ifdef __ARCH_WANT_SYS_CLONE3 #define __NR_clone3 435 __SYSCALL(__NR_clone3, sys_clone3) -#endif - #define __NR_close_range 436 __SYSCALL(__NR_close_range, sys_close_range) #define __NR_openat2 437 |