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y2038: additional syscall ABI cleanup

Browse source 
This is a follow-up to the y2038 syscall patches already merged in the tip
 tree.  As the final 32-bit RISC-V syscall ABI is still being decided on,
 this is the last chance to make a few corrections to leave out interfaces
 based on 32-bit time_t along with the old off_t and rlimit types.
 
 The series achieves this in a few steps:
 
 - A couple of bug fixes for minor regressions I introduced
   in the original series
 
 - A couple of older patches from Yury Norov that I had never
   merged in the past, these fix up the openat/open_by_handle_at and
   getrlimit/setrlimit syscalls to disallow the old versions of off_t
   and rlimit.
 
 - Hiding the deprecated system calls behind an #ifdef in
   include/uapi/asm-generic/unistd.h
 
 - Change arch/riscv to drop all these ABIs.
 
 Originally, the plan was to also leave these out on C-Sky, but that now
 has a glibc port that uses the older interfaces, so we need to leave
 them in place.
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Merge tag 'y2038-syscall-abi' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground into timers/2038

Pull additional syscall ABI cleanup for y2038 from Arnd Bergmann:

This is a follow-up to the y2038 syscall patches already merged in the tip
tree.  As the final 32-bit RISC-V syscall ABI is still being decided on,
this is the last chance to make a few corrections to leave out interfaces
based on 32-bit time_t along with the old off_t and rlimit types.

The series achieves this in a few steps:

- A couple of bug fixes for minor regressions I introduced
  in the original series

- A couple of older patches from Yury Norov that I had never
  merged in the past, these fix up the openat/open_by_handle_at and
  getrlimit/setrlimit syscalls to disallow the old versions of off_t
  and rlimit.

- Hiding the deprecated system calls behind an #ifdef in
  include/uapi/asm-generic/unistd.h

- Change arch/riscv to drop all these ABIs.

Originally, the plan was to also leave these out on C-Sky, but that now
has a glibc port that uses the older interfaces, so we need to leave
them in place.
This commit is contained in:
Thomas Gleixner 2019-02-27 21:45:27 +01:00
commit cfbe271667
36 changed files with 110 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

15
scripts/checksyscalls.sh
View file

@ -30,12 +30,14 @@ cat << EOF
#define __IGNORE_readlink /* readlinkat */
#define __IGNORE_symlink /* symlinkat */
#define __IGNORE_utimes /* futimesat */
#if BITS_PER_LONG == 64
#define __IGNORE_stat /* fstatat */
#define __IGNORE_lstat /* fstatat */
#else
#define __IGNORE_stat64 /* fstatat64 */
#define __IGNORE_lstat64 /* fstatat64 */
#ifndef __ARCH_WANT_SET_GET_RLIMIT
#define __IGNORE_getrlimit /* getrlimit */
#define __IGNORE_setrlimit /* setrlimit */
#endif
/* Missing flags argument */
@ -133,11 +135,18 @@ cat << EOF
#define __IGNORE_io_pgetevents
#define __IGNORE_recvmmsg
#define __IGNORE_mq_timedsend
#define __IGNORE_mq_timedreceiv
#define __IGNORE_mq_timedreceive
#define __IGNORE_semtimedop
#define __IGNORE_rt_sigtimedwait
#define __IGNORE_futex
#define __IGNORE_sched_rr_get_interval
#define __IGNORE_gettimeofday
#define __IGNORE_settimeofday
#define __IGNORE_wait4
#define __IGNORE_adjtimex
#define __IGNORE_nanosleep
#define __IGNORE_io_getevents
#define __IGNORE_recvmmsg
#endif
/* i386-specific or historical system calls */