Auto-sync with upstream branch master
Upstream commit: ef21bd2d8c6805c0c186a01f7c5039189f51b8c4
- loadarchive: guard against locale-archive corruption (Bug #25115)
- Undo accidental commit to ChangeLog.19.
- nptl: Document AS-safe functions in cancellation.c.
- elf: Use nocancel pread64() instead of lseek()+read()
- Add nocancel version of pread64()
- Add run-one-test convenience target and makefile help text
- Update sysvipc kernel-features.h files for Linux 5.1
- S390: Add new s390 platform z15.
- nptl: SIGCANCEL, SIGTIMER, SIGSETXID are always defined
- nptl/tst-cancel25 needs to be an internal test
- Remove libc_hidden_def from __semtimedop stub
- sysvipc: Implement semop based on semtimedop
- ipc: Refactor sysvipc internal definitions
- Rename and split elf/tst-dlopen-aout collection of tests
- dlfcn: Remove remnants of caller sensitivity from dlinfo
- ldconfig: handle .dynstr located in separate segment (bug 25087)
- ldd: Print "not a dynamic executable" on standard error [BZ #24150]
- Add PTRACE_GET_SYSCALL_INFO from Linux 5.3 to sys/ptrace.h.
- Move ChangeLog to ChangeLog.old/ChangeLog.19
- manual: Remove warning in the documentation of the abort function
- sysvipc: Set ipc_perm mode as mode_t (BZ#18231)
- Simplify note processing
- syscall-names.list: fix typos in comment
- y2038: linux: Provide __clock_settime64 implementation
- posix: Use posix_spawn for wordexp
- mips: Do not malloc on getdents64 fallback
- sparc: Assume GOTDATA support in the toolchain
- <dirent.h>: Remove wrong comment about getdents64 declaration
- ChangeLog: Remove leading spaces before tabs and trailing whitespace
- Make tst-strftime2 and tst-strftime3 depend on locale generation
- posix/tst-wordexp-nocmd: Fix diagnostics output in test
- wordexp: Split out command execution tests from posix/wordexp-test