[build] Move gthr to toplevel libgcc

[Rainer Orth]

Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> writes:

> John David Anglin <dave.anglin@nrc-cnrc.gc.ca> writes:
>
>>> I could find no indication that HP-UX 10 supported anything but DCE
>>> threads (especially no POSIX threads), so _REENTRANT being defined must
>>> meant DCE threads, unless I'm mistaken.
>>
>> _REENTRANT doesn't imply DCE threads.  The reentrant routines were added
>> to the non threaded version of libc in HP-UX 10 in preparation for the
>> transition
>> to POSIX threads in HP-UX 11.  We define _REENTRANT under other
>> circumstances in pa-hpux10.h as the reentrant routines are needed for
>> libgfortran,
>> etc.
>
> One could argue that it's the responsibility of libgfortran to do so if
> necessary, though.
>
> But ok, I'll restore the definition and use of _DCE_THREADS in
> pa-hpux10.h and gthr-dce.h.

Here's the updated patch with that change.  I haven't yet rebased it
to current mainline (will do so for the whole patch series over the
weekend), and it still requires the previous libgcc patches to apply
cleanly.

	Rainer


2011-08-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	gcc:
	* gthr-posix.h, gthr-single.h, gthr.h: Move to ../libgcc.
	* gthr-aix.h: Move to ../libgcc/config/rs6000.
	* gthr-dce.h: Move to ../libgcc/config/pa.
	* gthr-lynx.h: Move to ../libgcc/config.
	* gthr-mipssde.h: Move to ../libgcc/config/mips.
	* gthr-rtems.h: Move to ../libgcc/config.
	* gthr-tpf.h: Move to ../libgcc/config/s390.
	* gthr-vxworks.h: Move to ../libgcc/config.
	* gthr-win32.h: Move to ../libgcc/config/i386.
	* configure.ac (gthread_flags): Remove
	(gthr-default.h): Don't create.
	(thread_file): Don't substitute.
	* configure: Regenerate.
	* Makefile.in (GCC_THREAD_FILE): Remove.
	(GTHREAD_FLAGS): Remove.
	(libgcc.mvars): Remove GTHREAD_FLAGS.
	* config/m32r/linux.h (SUBTARGET_CPP_SPEC): Don't define _PTHREADS
	if -pthread.
	* config/mn10300/linux.h (CPP_SPEC): Likewise.
	* config/netbsd.h (NETBSD_CPP_SPEC): Likewise.
	* config/sh/linux.h (SUBTARGET_CPP_SPEC): Likewise.
	* config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
	* config/t-vxworks (EXTRA_HEADERS): Remove.

	gcc/po:
	* EXCLUDES (gthr-aix.h, gthr-dce.h, gthr-posix.c, gthr-posix.h)
	(gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h)
	(gthr-win32.h, gthr.h): Remove.

	libgcc:
	* gthr-posix.h, gthr-single.h, gthr.h: New files.
	* config/gthr-lynx.h, config/gthr-rtems.h, config/gthr-vxworks.h,
	config/i386/gthr-win32.h, config/mips/gthr-mipssde.h,
	config/pa/gthr-dce.h, config/rs6000/gthr-aix.h,
	config/s390/gthr-tpf.h: New files.
	* config/i386/gthr-win32.c: Include "gthr-win32.h".
	* config.host (thread_header, thread_dir): New variables.
	Set it depending on target_thread_file.
	* configure.ac (gthr-default.h): Link from $thread_header.
	* configure: Regenerate.
	* Makefile.in (LIBGCC2_CFLAGS): Remove $(GTHREAD_FLAGS).

	libgfortran:
	* Makefile.am (AM_CPPFLAGS): Add
	-I$(srcdir)/$(MULTISRCTOP)../libgcc, -I$(MULTIBUILDTOP)../libgcc.
	* Makefile.in: Regenerate.
	* acinclude.m4 (LIBGFOR_CHECK_GTHR_DEFAULT): Remove.
	* configure.ac (LIBGFOR_CHECK_GTHR_DEFAULT): Likewise.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	libobjc:
	* Makefile.in (INCLUDES): Add -I$(MULTIBUILDTOP)../libgcc.
	* configure.ac (target_thread_file, HAVE_GTHR_DEFAULT): Remove.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	libstdc++-v3:
	* acinclude.m4 (GLIBCXX_CONFIGURE): Determine and substitute
	toplevel_builddir.
	(GLIBCXX_ENABLE_THREADS): Remove glibcxx_thread_h,
	HAVE_GTHR_DEFAULT, enable_thread.
	(GLIBCXX_CHECK_GTHREADS): Reflect gthr move to libgcc.
	* include/Makefile.am (thread_host_headers): Remove
	${host_builddir}/gthr-tpf.h.
	(${host_builddir}/gthr.h): Reflect gthr move to libgcc.
	Use $<.
	(${host_builddir}/gthr-single.h): Likewise.
	(${host_builddir}/gthr-posix.h): Likewise.
	(${host_builddir}/gthr-tpf.h): Remove.
	(${host_builddir}/gthr-default.h): Likewise.
	* configure, config.h.in: Regenerate.
	* Makefile.in, doc/Makefile.in, include/Makefile.in,
	libsupc++/Makefile.in, po/Makefile.in, python/Makefile.in,
	src/Makefile.intestsuite/Makefile.in: Regenerate.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: libgcc-gthr.patch
Type: text/x-patch
Size: 17869 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20110923/7a504d7a/attachment.bin>
-------------- next part --------------

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University