glibc defines the stack_t type with the tag struct sigaltstack. This
is not permitted by POSIX; sigaltstack is only reserved with file
scope in the namespace of ordinary identifiers, not the tag namespace,
and in the case where stack_t is obtained from ucontext.h rather than
signal.h, it's not reserved with file scope at all.
This patch removes the tag accordingly and updates uses in glibc of
struct sigaltstack. This is similar to the removal of the "struct
siginfo" tag a few years ago: C++ name mangling changes are an
unavoidable consequence. A NEWS item is added to note the changed
mangling. There is inevitably some risk of breaking builds of
anything that relies on the struct sigaltstack name (though the first
few hits I looked at from codesearch.debian.net generally seemed to
involve code that could use the stack_t name conditionally, so
depending on how they determine the conditionals they may work with
glibc not defining the struct tag anyway).
Tested for x86_64 and x86, and with build-many-glibcs.py.
[BZ #21517]
* bits/types/stack_t.h (stack_t): Remove struct tag.
* sysdeps/unix/sysv/linux/bits/types/stack_t.h (stack_t):
Likewise.
* sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h (stack_t):
Likewise.
* debug/segfault.c (install_handler): Use stack_t instead of
struct sigaltstack.
* hurd/hurd/signal.h (struct hurd_sigstate): Likewise.
* hurd/trampoline.c (_hurd_setup_sighandler): Likewise.
* include/signal.h (__sigaltstack): Likwise.
* signal/sigaltstack.c (__sigaltstack): Likewise.
* signal/signal.h (sigaltstack): Likewise.
* sysdeps/mach/hurd/i386/signal-defines.sym
(SIGALTSTACK__SS_SP__OFFSET): Likewise.
(SIGALTSTACK__SS_SIZE__OFFSET): Likewise.
(SIGALTSTACK__SS_FLAGS__OFFSET): Likewise.
* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise.
* sysdeps/mach/hurd/sigstack.c (sigstack): Likewise.
* sysdeps/unix/sysv/linux/alpha/sys/procfs.h (struct
elf_prstatus): Likewise.
* sysdeps/unix/sysv/linux/hppa/____longjmp_chk.c (CHECK_SP):
Likewise.
* sysdeps/unix/sysv/linux/ia64/sys/procfs.h (struct elf_prstatus):
Likewise.
* sysdeps/unix/sysv/linux/m68k/____longjmp_chk.c (CHECK_SP):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h (struct
elf_prstatus): Likewise.
* sysdeps/unix/sysv/linux/sh/sys/procfs.h (struct elf_prstatus):
Likewise.
* sysdeps/unix/sysv/linux/sys/procfs.h (struct elf_prstatus):
Likewise.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
argument type, for 2000-02-22 change in signal/signal.h declaration.
* sysdeps/generic/getdents64.c (__getdirentries64): Renamed
to getdirentries64 (no __), since the Linux implementation
has no __ name, and there is no declaration for the __ name.
* sysdeps/mach/bits/libc-lock.h (__libc_cleanup_end): New macro.
* sysdeps/mach/hurd/Makefile ($(common-objpfx)errnos.d): Tighten up
sed regexp so as not to break directory names including /../ within.
* sysdeps/unix/bsd/bits/waitflags.h: File removed.
The sysdeps/generic file is right for BSD. This file was in fact the
Hurd file, but the only difference was the WNOREAP flag that was never
actually implemented or used anywhere.
1998-07-31 17:59 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/bits/byteswap.h: Fix problems with side effects.
* manual/filesys.texi: Document truncate and ftruncate.
Patch by Michael Deutschmann <michael@talamasca.wkpowerlink.com>.
* shadow/putspent.c: Lock stream while generating the output.
* sunrpc/clnt_unix.c: Use ucred instead of cmsgcred again.
(__msgwrite): Rewrite accordingly.
* sunrpc/svc_unix.c: Likewise.
* sysdeps/unix/sysv/linux/Dist: Remove __recvmsg.S and __sendmsg.S.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)==socket]
(sysdep_routines): Remove __sendmsg and __recvmsg.
* sysdeps/unix/sysv/linux/__recvmsg.S: Removed.
* sysdeps/unix/sysv/linux/__sendmsg.S: Removed.
* sysdeps/unix/sysv/linux/recvmsg.c: Removed.
* sysdeps/unix/sysv/linux/sendmsg.c: Removed.
* sysdeps/unix/sysv/linux/recvmsg.S: New file.
* sysdeps/unix/sysv/linux/sendmsg.S: New file.
* sysdeps/unix/sysv/linux/bits/socket.h: Define SCM_CREDENTIALS and
struct ucred. Remove struct cmsgcred.
Patches by Thorsten Kukuk.
1998-08-03 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* inet/rcmd.c (__ivaliduser): Allow '#' as comment character.
1998-08-08 14:42 Ulrich Drepper <drepper@cygnus.com>
* argp/argp-help.c: Prepare to be used outside glibc without gcc by
adding usual alloca cruft.
Reported by Eleftherios Gkioulekas <lf@amath.washington.edu>.
1998-04-05 Jim Meyering <meyering@ascend.com>
* lib/regex.c (WIDE_CHAR_SUPPORT): Define.
This now depends on HAVE_BTOWC so systems that lack btowc (like
solaris-2.5.1) don't lose.
1998-08-07 Mark Kettenis <kettenis@phys.uva.nl>
* sysdeps/generic/bits/sigaction.h: Remove definition of SA_DISABLE.
* sysdeps/generic/bits/sigstack.h: Define SS_DISABLE, SS_ONSTACK,
MINSIGSTKZ and SIGSTKSZ. Definitions match BSD.
* hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Use SS_ONSTACK
instead of SA_ONSTACK.
* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Renamed from
sigaltstack, and created a weak alias. Use SS_DISABLE and
SS_ONSTACK instead of SA_DISABLE and SA_ONSTACK.
* sysdeps/mach/hurd/sigstack.c (sigstack): Use SS_ONSTACK instead
of SA_ONSTACK. Call __sigaltstack instead of sigaltstack.
* sysdeps/mach/hurd/i386/sigreturn.c (__sigreturn): Use SS_ONSTACK
instead of SA_ONSTACK.
* sysdeps/mach/hurd/alpha/sigreturn.c (__sigreturn): Likewise.
* sysdeps/mach/hurd/mips/sigreturn.c (__sigreturn): Likewise.
* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
Use SS_DISABLE instead of SA_DISABLE. Use SS_ONSTACK instead of
SA_ONSTACK where appropriate.
* sysdeps/mach/hurd/alpha/trampoline.c (_hurd_setup_sighandler):
Likewise.
* sysdeps/mach/hurd/hppa/trampoline.c (_hurd_setup_sighandler):
Likewise.
* sysdeps/mach/hurd/mips/trampoline.c (_hurd_setup_sighandler):
Likewise.
* manual/signal.texi (Signal Stack): Talk about SS_DISABLE and
SS_ONSTACK instead of SA_DISABLE and SA_ONSTACK in discussion of
the `ss_flags' member of `struct sigaltstack'.
1998-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/Makefile (routines) [$(versioning)=yes]: Add oldtmpfile.
(shared-only-routines): Likewise.
* libio/oldtmpfile.c: New file
* stdio-common/tmpfile.c: Use __fdopen and __close.
[USE_IN_LIBIO]: Use _IO_fdopen instead of _IO_new_fdopen. Put
tmpfile on symbol version GLIBC_2.1.
* stdio-common/tmpfile64.c: Use __fdopen and __close.
[USE_IN_LIBIO]: Use _IO_fdopen instead of _IO_new_fdopen.
* stdio-common/Version [GLIBC_2.1]: Add tmpfile.
* stdio-common/tempnam.c: Use __strdup instead of strdup.
* sysdeps/posix/fdopen.c: Define __fdopen and make fdopen weak
alias.
* sysdeps/generic/fdopen.c: Likewise.
* sysdeps/mach/hurd/fdopen.c: Likewise.
* stdio/stdio.h: Declare __fdopen.
* sunrpc/openchild.c: Use __fdopen instead of fdopen.
[USE_IN_LIBIO]: Map __fdopen to _IO_fdopen.
* sysdeps/posix/tempname.c (__gen_tempname): Don't bother checking
__stub_open64, it is never defined.
1998-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/iofopen64.c: Fix typo. Avoid unnessary casts.
* libio/iopopen.c: Unlink file before freeing it if command
creation failed. Avoid unnessary casts.
* libio/iofdopen.c: Avoid unnecessary cast.
* pwd/fgetpwent_r.c [USE_IN_LIBIO]: Map funlockfile to
_IO_funlockfile.
* pwd/fgetspent_r.c [USE_IN_LIBIO]: Likewise.
1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* grp/grp.h, pwd/pwd.h: Don't declare __grpopen, __grpread,
__grpalloc, __grpscan and the corresponding pwd functions, they
were removed long ago.
1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/libm-test.c (csqrt_test): Adjust epsilons.
(casinh_test): Likewise.
1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* posix/globtest.sh: Fix typo. Remove second test output file.
1998-08-07 Cristian Gafton <gafton@redhat.com>
* pwd/putpwent.c (putpwent): Avoid writting (none) in the passwd file.
* shadow/putspent.c (putspent): Likewise.
* grp/putgrent.c: New file.
* grp/Makefile (routines): Add putgrent.
* grp/Versions [GLIBC_2.1]: Add putgrent.
* grp/grp.h: Add putgrent prototype.
1998-08-04 19:33 Ulrich Drepper <drepper@cygnus.com>
* elf/elf.h: More ELF definitions.
