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ChangeLog
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2017-10-03 Bruno Haible <bruno@clisp.org>
Add support for NetBSD/sparc.
* src/sigsegv.h.in (SIGSEGV_FAULT_ADDRESS_ALIGNMENT) [NetBSD/sparc]:
Define to 0x1000.
* m4/fault.m4 (SV_TRY_FAULT): On NetBSD/sparc, set
SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS like on Linux/s390.
2017-10-03 Bruno Haible <bruno@clisp.org>
Fix a message.
* tests/sigsegv3.c (handler): Fix message.
2017-10-01 Bruno Haible <bruno@clisp.org>
Comment.
* configure.ac: Add a comment about GNU/Hurd.
2017-09-29 Bruno Haible <bruno@clisp.org>
Make stack VMA detection work on GNU/kFreeBSD even without mincore.
It needs to use the vma_iterate for Linux combined with the callback
for FreeBSD.
* src/stackvma-vma-iter.c: New file, extracted from
src/stackvma-linux.c, src/stackvma-freebsd.c, src/stackvma-netbsd.c.
* src/stackvma-linux.c: Include stackvma-vma-iter.c.
(vma_iterate): Moved to src/stackvma-vma-iter.c.
* src/stackvma-freebsd.c: Likewise.
* src/stackvma-netbsd.c: Likewise.
* src/Makefile.am (EXTRA_DIST): Add stackvma-vma-iter.c.
* configure.ac (CFG_STACKVMA): Treat GNU/kFreeBSD like FreeBSD.
2017-09-28 Bruno Haible <bruno@clisp.org>
Make stack VMA detection code more maintainable.
* src/stackvma-linux.c (struct callback_locals): New type.
(callback): New function.
(vma_iterate): New function, extracted from gnulib's lib/vma-iter.c.
(sigsegv_get_vma): Use vma_iterate.
* src/stackvma-freebsd.c: Likewise.
* src/stackvma-netbsd.c: Likewise.
* src/stackvma-beos.c: Likewise.
* src/stackvma-procfs.c: Likewise.
(sigsegv_get_vma_fallback): Inline and remove function.
2017-09-28 Bruno Haible <bruno@clisp.org>
Make stack VMA detection more reliable on Linux, FreeBSD, NetBSD.
* src/stackvma-rofile.c (struct rofile, rof_open, rof_peekchar,
rof_close): Read the entire file into memory in a single system call.
* src/stackvma-linux.c (sigsegv_get_vma): Update.
* src/stackvma-freebsd.c (sigsegv_get_vma): Likewise.
* src/stackvma-netbsd.c (sigsegv_get_vma): Likewise.
2017-07-15 Bruno Haible <bruno@clisp.org>
Get rid of autom4te.cache directory (left over from autoconf, automake).
* autogen.sh: Remove autom4te.cache directory.
2017-03-10 Bruno Haible <bruno@clisp.org>
Fix a comment.
* src/stackvma-mincore.c: Update comment regarding Mac OS X.
2017-03-04 Bruno Haible <bruno@clisp.org>
Avoid use of glibc-internal macros.
* src/fault-linux-arm.h: Use compiler-defined preprocessor macros,
rather than __WORDSIZE.
* src/fault-linux-powerpc.h: Likewise.
* src/fault-linux-sparc.h: Likewise.
* src/fault-linux-sparc-old.h: Likewise.
Reported by Andreas Schwab <schwab@linux-m68k.org>.
2017-02-21 Bruno Haible <bruno@clisp.org>
Improve Hurd/i386 support.
* src/fault-hurd-i386.h: New file.
* src/Makefile.am (noinst_HEADERS): Add it.
* configure.ac: Use it on Hurd/i386.
* NEWS: Document the improvement.
2017-02-18 Bruno Haible <bruno@clisp.org>
Prepare for new release.
* configure.ac: Bump version number to 2.11.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
* README: Likewise.
* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:4:0.
* NEWS: Mention the <stdint.h> requirement.
2017-02-18 Bruno Haible <bruno@clisp.org>
Improve cross-compilation guesses.
* configure.ac: Include results on kFreeBSD9.0.
Treat FreeBSD >= 10 like FreeBSD 4 to 9.
2017-02-18 Bruno Haible <bruno@clisp.org>
On Solaris, prefer the newer /proc fs API to the older (deprecated) one.
Reported by Roger Faulkner in
http://savannah.gnu.org/bugs/?42187 .
* configure.ac: Accept <sys/procfs.h> even if it does no longer define
PIOCNMAP and PIOCMAP.
* src/stackvma-procfs.c: Define _STRUCTURED_PROC before including
<sys/procfs.h>.
(sigsegv_get_vma_fallback): New function.
(sigsegv_get_vma): If PIOCNMAP and PIOCMAP are no longer defined, use
the newer /proc interface.
2017-02-18 Bruno Haible <bruno@clisp.org>
Override value of SIGSTKSZ on 64-bit AIX and on HP-UX.
* src/sigsegv.h.in: On 64-bit AIX, set SIGSTKSZ to 8 KB.
On HP-UX, set SIGSTKSZ to 16 KB.
* NEWS: Document the improvement.
2017-02-18 Bruno Haible <bruno@clisp.org>
Improve Linux/aarch64 support.
* src/fault-linux-arm.h: Add code for aarch64.
* configure.ac: For aarch64 platforms, use fault-linux-arm.h.
2017-02-18 Bruno Haible <bruno@clisp.org>
Make stack overflow detection work on Linux/sparc.
* src/fault-linux-sparc.h (SIGSEGV_FAULT_STACKPOINTER): Fix: ucp is a
'struct sigcontext *', not an 'ucontext_t *'.
(BOGUS_FAULT_ADDRESS_UPON_STACK_OVERFLOW): New macro.
* src/handler-unix.c (sigsegv_handler): Handle the
BOGUS_FAULT_ADDRESS_UPON_STACK_OVERFLOW case.
Handle errno consistently.
* NEWS: Document the improvement.
2017-02-18 Bruno Haible <bruno@clisp.org>
Fix glibc version determination.
* configure.ac (glibcversion): Use postprocessing that works also with
gcc 5 or newer.
2017-02-18 Bruno Haible <bruno@clisp.org>
Update comments.
* src/fault-linux-*.h: Update references to the glibc sources.
2017-01-10 Bruno Haible <bruno@clisp.org>
Update README.
* README: Prefer https URLs over http or ftp URLs.
2016-12-04 Bruno Haible <bruno@clisp.org>
Always use the newest released copies of files brought in from Automake.
* autogen.sh: Make sure to get new versions of files brought in by
automake.
2016-11-27 Bruno Haible <bruno@clisp.org>
Fix compilation error on Cygwin, regression from 2016-10-22.
* src/sigsegv.h.in: Include <stddef.h>.
2016-11-23 Bruno Haible <bruno@clisp.org>
Update installation instructions for Windows.
* README.windows: Assume a 64-bit Windows. Explain both 32-bit and
64-bit builds. Revamp instructions for the MS Visual C/C++ tool chain
and for Cygwin.
2016-11-23 Bruno Haible <bruno@clisp.org>
Drop the nickname "woe32".
* README.windows: Renamed from README.woe32.
* README: Update.
* Makefile.am (EXTRA_DIST): Update.
2016-10-22 Bruno Haible <bruno@clisp.org>
Support for platforms with 32-bit 'long' and 64-bit pointers.
* src/sigsegv.h.in: Use 'size_t' instead of 'unsigned long'.
* src/stackvma.h: Include <stdint.h>. Use 'uintptr_t' instead of
'unsigned long'.
* src/stackvma-*.c: Use 'uintptr_t' instead of 'unsigned long'.
* src/dispatcher.c: Include <stdint.h>. Use 'uintptr_t' or 'size_t'
instead of 'unsigned long'.
* src/handler-*.c: Likewise.
* tests/mmaputil.h: Use 'uintptr_t' or 'size_t' instead of
'unsigned long'.
* tests/sigsegv1.c: Include <stdint.h>. Use 'uintptr_t' instead of
'unsigned long'.
* tests/sigsegv2.c: Likewise.
* tests/sigsegv3.c: Likewise.
* tests/stackoverflow2.c: Likewise.
Reported by Nate Sigrist in <https://savannah.gnu.org/bugs/?37604>.
2016-10-22 Bruno Haible <bruno@clisp.org>
Switch to libtool 2.4.6.
* m4/libtool.m4: Update from libtool-2.4.6.
* m4/ltoptions.m4: Likewise.
* m4/ltversion.m4: Likewise.
* build-aux/ltmain.sh: Likewise.
2016-10-22 Bruno Haible <bruno@clisp.org>
Switch to automake 1.15.
* autogen.sh: Update comment.
* src/Makefile.am (AM_CPPFLAGS): Renamed from INCLUDES.
* tests/Makefile.am (AM_CPPFLAGS): Renamed from INCLUDES.
* build-aux/.gitignore: Ignore more files.
2015-12-03 Waldemar Brodkorb <wbx@uclibc-ng.org>
* src/fault-linux-sparc.h (SIGSEGV_FAULT_STACKPOINTER)
<__WORDSIZE == 64>: New macro.
2014-12-30 Simon Dawson <spdawson@gmail.com> (tiny change)
Will Newton <will.newton@linaro.org> (tiny change)
Spenser Gilliland <spenser@gillilanding.com> (tiny change)
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> (tiny change)
* m4/stack-direction.m4: Add stack direction info for various
processors.
2012-09-09 Bruno Haible <bruno@clisp.org>
Support for OpenBSD 5.2 on m88k and sh processors.
* src/fault-openbsd-m88k.h: Update for OpenBSD 5.2.
* src/fault-openbsd-sh.h: Likewise.
Reported by Brad Smith <brad@comstyle.com>
at <https://savannah.gnu.org/bugs/?37288>.
2012-04-28 Bruno Haible <bruno@clisp.org>
Allow use of autoconf-2.69 and automake-1.12.
* autogen.sh: Update comments.
2011-10-18 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.4.2.
* m4/ltoptions.m4: Likewise.
* m4/ltversion.m4: Likewise.
* build-aux/ltmain.sh: Likewise.
2011-09-30 Bruno Haible <bruno@clisp.org>
Update known platforms list.
* configure.ac (POSIX): Add Linux/SPARC to the known platforms.
2011-09-30 Bruno Haible <bruno@clisp.org>
Work around an mprotect(...,PROT_READ) bug on Linux 2.6.26/SPARC64.
* m4/fault.m4 (SV_TRY_FAULT): On Linux/SPARC, use PROT_NONE instead of
PROT_READ.
* tests/sigsegv1.c (main): Likewise.
* tests/sigsegv2.c (main): Likewise.
* tests/sigsegv3.c (main): Likewise.
* tests/stackoverflow2.c (main): Likewise.
2011-09-10 Bruno Haible <bruno@clisp.org>
Adhere to Win32 API.
* src/handler-win32.c (main_exception_filter): Use
EXCEPTION_STACK_OVERFLOW, not STATUS_STACK_OVERFLOW.
2011-05-03 Eric Blake <eblake@redhat.com>
Avoid polluting cygwin namespace.
* configure.ac (FAULT_CONTEXT_INCLUDE): Avoid including
<windows.h> on cygwin.
Reported by Corinna Vinschen, via Aharon Robbins.
2011-04-03 Bruno Haible <bruno@clisp.org>
* Version 2.10 released.
2011-04-03 Bruno Haible <bruno@clisp.org>
Don't ask for success reports on MacOS X any more.
* Makefile.am (check-next): No longer ask for success reports on
MacOS X.
2011-04-03 Bruno Haible <bruno@clisp.org>
Bump version number.
* configure.ac: Bump version number to 2.10.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
* README: Likewise. Recommend ftpmirror.gnu.org in the first place.
* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:3:0.
2011-03-13 Bruno Haible <bruno@clisp.org>
Support for Linux/S390.
* m4/fault.m4 (SV_TRY_FAULT): Define
SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS. On Linux/S390 systems, expect a
page-aligned fault address.
* src/sigsegv.h.in (SIGSEGV_FAULT_ADDRESS_ROUNDOFF_BITS): New macro.
(sigsegv_register): Mention constraint about address and len arguments.
* tests/sigsegv1.c (handler): On Linux/S390 systems, expect a
page-aligned fault address.
* tests/sigsegv3.c (handler): Likewise.
* tests/sigsegv2.c: Add comment.
* NEWS: Document the change.
Reported by Christoph Egger <christoph@debian.org>.
2011-01-29 Bruno Haible <bruno@clisp.org>
Improve OpenBSD support: Allow faster VMA determination.
* configure.ac: Check also for mquery.
(CFG_STACKVMA): Set to stackvma-mquery.c if mquery() exists.
* src/stackvma-mquery.c: New file.
* src/Makefile.am (EXTRA_DIST): Add it.
* NEWS: Document the improvement.
2011-01-23 Bruno Haible <bruno@clisp.org>
Improve NetBSD support: Allow VMA determination with fewer system calls.
* src/stackvma-netbsd.c: New file, based on src/stackvma-freebsd.c.
* src/stackvma-freebsd.c: Add comment.
* src/Makefile.am (EXTRA_DIST): Add stackvma-netbsd.c.
* configure.ac (CFG_STACKVMA): Set to stackvma-netbsd.c on NetBSD.
2010-11-06 Bruno Haible <bruno@clisp.org>
* Version 2.9 released.
2010-11-06 Bruno Haible <bruno@clisp.org>
Bump version number.
* configure.ac: Bump version number to 2.9.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
* README: Likewise.
* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:2:0.
2010-11-06 Bruno Haible <bruno@clisp.org>
Start to use gnulib.
* autogen.sh: New option --skip-gnulib. Fetch gnulib if GNULIB_TOOL is
not set. Import m4/relocatable-lib.m4.
* configure.ac: Invoke gl_RELOCATABLE_NOP instead of
AC_RELOCATABLE_NOP.
* m4/relocatable.m4: Remove file.
2010-11-06 Bruno Haible <bruno@clisp.org>
Modernize autoconf macro style.
* configure.ac: Surround all macro arguments in brackets.
* m4/getpagesize.m4: Likewise.
* m4/mmap-anon.m4: Likewise.
* m4/sigaltstack.m4: Likewise.
2010-11-06 Bruno Haible <bruno@clisp.org>
Don't list files in .gitignore that are absent after "make distclean".
* .gitignore: Complete the list of files that are created by "make" and
removed by "make distclean". But comment them out, since they belong in
.git/info/exclude. Also remove /autom4te.cache because "make distclean"
does not remove it.
2010-10-25 Eric Blake <eblake@redhat.com>
Fix powerpc64-unknown-linux-gnu implementation.
* src/stackvma-rofile.c (struct rofile): Reduce size, to avoid
overflowing alternate stack when compiled under -O2.
* src/stackvma-mincore.c (mapped_range_start, mapped_range_end):
Likewise.
* NEWS: Document the fix.
2010-10-24 Eric Blake <eblake@redhat.com>
Bruno Haible <bruno@clisp.org>
Enhance the tests to detect overflow of the alternate stack.
* tests/altstack.h: New file.
* tests/Makefile.am (EXTRA_DIST): Add altstack.h.
* configure.ac: Invoke AC_TYPE_UINTPTR_T.
* tests/stackoverflow1.c: Include altstack.h.
(SIGSTKSZ): Remove definition.
(mystack): Remove definition.
(main): Invoke prepare_alternate_stack and
check_alternate_stack_no_overflow.
* tests/stackoverflow2.c: Likewise.
* tests/efault2.c: Likewise.
* tests/efault3.c: Likewise.
2010-10-21 Eric Blake <eblake@redhat.com>
* .gitignore: Ignore more files.
2010-09-23 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.4.
* m4/ltversion.m4: Likewise.
* build-aux/ltmain.sh: Likewise.
2010-06-04 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.2.8.
* m4/ltoptions.m4: Likewise.
* m4/ltversion.m4: Likewise.
* m4/lt~obsolete.m4: Likewise.
* build-aux/ltmain.sh: Likewise.
2010-04-06 Eric Blake <eblake@redhat.com>
* AUTHORS: Add myself.
2010-03-30 Bruno Haible <bruno@clisp.org>
* README.woe32: Update for Cygwin 1.7.x.
2010-02-18 Bruno Haible <bruno@clisp.org>
Fix 64-bit builds with --enable-shared on MacOS X.
* src/stackvma-mach.c (sigsegv_get_vma): On 64-bit MacOS X, use
vm_region_64 instead of vm_region.
* NEWS: Mention the fix.
Reported by Rudá Moura <ruda@rudix.org>.
2010-01-31 Bruno Haible <bruno@clisp.org>
* README: Add more homepage links. Add bug report address.
2010-01-07 Bruno Haible <bruno@clisp.org>
Improve support for OpenBSD.
* src/fault-openbsd-i386.h (SIGSEGV_FAULT_STACKPOINTER): Define
differently in 64-bit mode.
* src/fault-openbsd-alpha.h: New file.
* src/fault-openbsd-arm.h: New file.
* src/fault-openbsd-hppa.h: New file.
* src/fault-openbsd-m68k.h: New file.
* src/fault-openbsd-m88k.h: New file.
* src/fault-openbsd-mips.h: New file.
* src/fault-openbsd-powerpc.h: New file.
* src/fault-openbsd-sh.h: New file.
* src/fault-openbsd-sparc.h: New file.
* src/fault-openbsd-vax.h: New file.
* src/Makefile.am (noinst_HEADERS): Add the new files.
* configure.ac (CFG_FAULT): Use these files on OpenBSD.
Reported by Paul Irofti <bulibuta@sdf.lonestar.org>.
2009-12-11 Bruno Haible <bruno@clisp.org>
* Version 2.8 released.
2009-12-11 Bruno Haible <bruno@clisp.org>
* configure.ac: Bump version number to 2.8.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
* README: Likewise.
* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:1:0.
2009-12-11 Bruno Haible <bruno@clisp.org>
Remove configuration option --enable-EFAULT.
* configure.ac (enable_EFAULT): Set to yes on Cygwin, to no otherwise.
* README, NEWS: Don't mention --enable-EFAULT.
Reported by Eric Blake.
2009-12-11 Bruno Haible <bruno@clisp.org>
New test for Cygwin.
* tests/cygwin1.c: New file, based on code by Eric Blake.
* tests/Makefile.am (TESTS, noinst_PROGRAMS): Add it.
* configure.ac (CYGWIN): New conditional.
2009-11-21 Eric Blake <ebb9@byu.net>
Bruno Haible <bruno@clisp.org>
New configuration option --enable-EFAULT.
* configure.ac: Accept option --enable-EFAULT. Set and define
ENABLE_EFAULT. Invoke SV_SYSCALLS_EFAULT.
For Cygwin, use the CFG_FAULT that was already determined, or
fault-cygwin-old.h if none. In the latter case, define
OLD_CYGWIN_WORKAROUND.
* m4/efault.m4: New file.
* src/handler-win32.c [CYGWIN && ENABLE_EFAULT]: Include
handler-unix.c.
(MIXING_UNIX_SIGSEGV_AND_WIN32_STACKOVERFLOW_HANDLING): New macro.
(last_seen_fault_address): New variable.
(main_exception_filter): Store the fault address for the Unix signal
handler.
(sigsegv_install_handler): Redefine.
(sigsegv_deinstall_handler, sigsegv_leave_handler): Don't define.
* src/handler-unix.c (stackoverflow_install_handler,
stackoverflow_deinstall_handler): Don't define if
MIXING_UNIX_SIGSEGV_AND_WIN32_STACKOVERFLOW_HANDLING is set.
* src/fault-cygwin-old.h: New file.
* src/Makefile.am (noinst_HEADERS): Add it.
* tests/efault1.c: New file.
* tests/efault2.c: New file.
* tests/efault3.c: New file.
* tests/Makefile.am (TESTS, noinst_PROGRAMS): Add efault1, efault2,
efault3.
* README, NEWS: Mention the new option.
2009-11-21 Bruno Haible <bruno@clisp.org>
Support for Cygwin 1.7.
* configure.ac: For Cygwin and mingw, choose FAULT_CONTEXT in a way
that is consistent with CFD_HANDLER.
Reported by Eric Blake <ebb9@byu.net>
2009-11-21 Bruno Haible <bruno@clisp.org>
* configure.ac: Add comments and structure.
2009-11-21 Bruno Haible <bruno@clisp.org>
Reduce size of configure.ac.
* m4/stack-direction.m4: New file, extracted from configure.ac.
* configure.ac: Simply invoke SV_STACK_DIRECTION.
2009-11-21 Eric Blake <ebb9@byu.net>
Bruno Haible <bruno@clisp.org>
Avoid a gcc warning.
* src/handler-win32.c (debug_get_except_list): Mark as unused.
2009-11-21 Bruno Haible <bruno@clisp.org>
Fix compilation error on newer versions of HP-UX 11.31 on ia64.
* configure.ac: Set sv_cv_have_stack_overflow_recovery to 'no' if it is
not possible to longjmp out of the signal handler. On HP-UX 11.31 on
ia64 it is only possible with siglongjmp (as far as we know).
Reported by Bill Glessner <bill.glessner@cwu.edu>.
* configure.ac: Move determination of CFG_LEAVE before the
determination of sv_cv_have_stack_overflow_recovery.
2009-10-17 Bruno Haible <bruno@clisp.org>
* README: Mention danger of longjmping back to a central point.
Reported by Angelo Borsotti <angelo.borsotti@gmail.com>.
2009-09-22 Paolo Bonzini <bonzini@gnu.org>
Move more declarations of alternate stacks to global scope.
* m4/sigaltstack-longjmp.m4: Make mystack global.
* m4/sigaltstack-siglongjmp.m4: Make mystack global.
* m4/sigaltstack.m4: Make mystack global.
2009-09-22 Paolo Bonzini <bonzini@gnu.org>
Fix crash of stackoverflow2 on x86_64-linux.
* tests/stackoverflow1.c: Make mystack global.
* tests/stackoverflow2.c: Likewise.
* src/sigsegv.h.in: Warn against placing the alternate stack
on the main stack.
2009-08-16 Bruno Haible <bruno@clisp.org>
Avoid a gcc warning on Solaris.
* src/stackvma-procfs.c: Include <string.h>.
2009-08-14 Bruno Haible <bruno@clisp.org>
Remove config.guess, config.sub from from version control.
* autogen.sh: Fetch config.guess, config.sub.
* build-aux/config.guess: Remove file.
* build-aux/config.sub: Remove file.
2009-08-14 Bruno Haible <bruno@clisp.org>
Remove autogenerated files from version control.
* autogen.sh: New file.
* aclocal.m4: Remove file.
* configure: Remove file.
* config.h.in: Remove file.
* Makefile.in: Remove file.
* src/Makefile.in: Remove file.
* tests/Makefile.in: Remove file.
* build-aux/install-sh: Remove file.
* build-aux/missing: Remove file.
* config.h.msvc: Remove file.
* src/sigsegv.h.msvc: Remove file.
2009-08-14 Bruno Haible <bruno@clisp.org>
Override automake's tar command used for creating distributions.
* configure.ac (am__tar): New variable.
2009-08-09 Bruno Haible <bruno@clisp.org>
* Version 2.7 released.
2009-08-09 Bruno Haible <bruno@clisp.org>
* configure.ac: Bump version number to 2.7.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): Bump to 2:0:0.
2009-08-09 Bruno Haible <bruno@clisp.org>
* src/fault-linux-powerpc.h (SIGSEGV_FAULT_STACKPOINTER): Fix mistake.
2009-08-09 Bruno Haible <bruno@clisp.org>
Avoid warnings on glibc systems.
* src/stackvma-mincore.c (pageinfo_t): New type.
(is_mapped, mapped_range_start, mapped_range_end): Use it.
2009-08-01 Bruno Haible <bruno@clisp.org>
Prefer the POSIX way over the traditional one, on Linux.
* configure.ac: Use the traditional Linux way only if the POSIX way
does not work.
* NEWS: Mention the change.
2009-08-01 Bruno Haible <bruno@clisp.org>
Add knowledge where to find the stack pointer on Linux platforms.
* src/fault-linux-alpha.h: New file.
* src/fault-linux-arm.h: New file.
* src/fault-linux-cris.h: New file.
* src/fault-linux-hppa.h: New file.
* src/fault-linux-i386.h: New file.
* src/fault-linux-ia64.h: New file.
* src/fault-linux-m68k.h: New file.
* src/fault-linux-mips.h: New file.
* src/fault-linux-powerpc.h: New file.
* src/fault-linux-s390.h: New file.
* src/fault-linux-sh.h: New file.
* src/fault-linux-sparc.h: New file.
* src/Makefile.am (noinst_HEADERS): Add them.
* src/handler-unix.c (_GNU_SOURCE): Define.
* src/fault-linux-hppa-old.h: Add alternative code, commented.
* src/fault-linux-sparc-old.h: Likewise.
* configure.ac (CFG_FAULT): Use these files on Linux when the POSIX way
of catching page faults works.
2009-08-01 Bruno Haible <bruno@clisp.org>
* src/fault-linux-i386-old.h: Renamed from src/fault-linux-i386.h.
* src/Makefile.am (noinst_HEADERS): Update.
* configure.ac: Update.
* src/fault-linux-i386-oldold.h: Renamed from
src/fault-linux-i386-old.h.
* src/Makefile.am (noinst_HEADERS): Update.
* configure.ac: Update.
* src/fault-linux-alpha-old.h: Renamed from src/fault-linux-alpha.h.
* src/fault-linux-arm-old.h: Renamed from src/fault-linux-arm.h.
* src/fault-linux-cris-old.h: Renamed from src/fault-linux-cris.h.
* src/fault-linux-hppa-old.h: Renamed from src/fault-linux-hppa.h.
* src/fault-linux-ia64-old.h: Renamed from src/fault-linux-ia64.h.
* src/fault-linux-m68k-old.c: Renamed from src/fault-linux-m68k.c.
* src/fault-linux-m68k-old.h: Renamed from src/fault-linux-m68k.h.
Update.
* src/fault-linux-mips-old.h: Renamed from src/fault-linux-mips.h.
* src/fault-linux-powerpc-old.h: Renamed from src/fault-linux-powerpc.h.
* src/fault-linux-s390-old.h: Renamed from src/fault-linux-s390.h.
* src/fault-linux-sh-old.h: Renamed from src/fault-linux-sh.h.
* src/fault-linux-sparc-old.h: Renamed from src/fault-linux-sparc.h.
* src/fault-linux-x86_64-old.h: Renamed from src/fault-linux-x86_64.h.
* src/Makefile.am (noinst_HEADERS): Update.
* configure.ac: Update.
2009-06-23 Bruno Haible <bruno@clisp.org>
* Makefile.am (check-next): No longer ask for copies of config.log.
2009-06-23 Bruno Haible <bruno@clisp.org>
Improve support for MirBSD 10.
* configure.ac (CFG_FAULT, FAULT_CONTEXT): Treat MirBSD/i386 like
OpenBSD/i386.
2009-06-23 Bruno Haible <bruno@clisp.org>
Add support for platforms that follow POSIX:2008, not POSIX:2001.
* configure.ac (POSIX): Add MirBSD to known list.
(CFG_FAULT, FAULT_CONTEXT, FAULT_CONTEXT_INCLUDE): Define appropriately
when <ucontext.h> does not exist.
* src/fault-posix-ucontext.h: Renamed from src/fault-posix.h.
* src/fault-posix.h: New file.
* src/fault-aix5.h: Update.
* src/fault-hpux-hppa.h: Update.
* src/fault-netbsd.h: Update.
* src/fault-solaris.h: Update.
* src/Makefile.am (noinst_HEADERS): Add fault-posix-ucontext.h.
2009-06-23 Bruno Haible <bruno@clisp.org>
* configure.ac (FAULT_CONTEXT_INCLUDE): Reinstall the AC_SUBST
invocation.
2009-05-21 Bruno Haible <bruno@clisp.org>
* configure.ac (FAULT_CONTEXT_INCLUDE): Don't substitute into
Makefiles.
2009-05-21 Bruno Haible <bruno@clisp.org>
* tests/Makefile.am (AUTOMAKE_OPTIONS): Assume automake >= 1.11.
Use color-tests option.
2009-01-14 Bruno Haible <bruno@clisp.org>
* configure.ac: More consistent m4 quoting.
2008-09-27 Bruno Haible <bruno@clisp.org>
* build-aux/config.sub: Update to GNU version 2008-09-08.
2008-09-23 Eric Blake <ebb9@byu.net>
Use 2 * SIGSTKSZ consistently in configuration checks.
* m4/sigaltstack.m4 (SV_SIGALTSTACK): Work around IRIX sigaltstack bug.
* m4/sigaltstack-longjmp.m4 (SV_TRY_LEAVE_HANDLER_LONGJMP): Likewise.
* m4/sigaltstack-siglongjmp.m4 (SV_TRY_LEAVE_HANDLER_SIGLONGJMP):
Likewise.
2008-09-21 Bruno Haible <bruno@clisp.org>
* src/Makefile.am (LIBSIGSEGV_VERSION_INFO): New variable.
(libsigsegv_la_LDFLAGS): Pass -rpath and -version-info option.
Reported by Thomas Klausner <tk@giga.or.at>.
2008-09-21 Eric Blake <ebb9@byu.net>
Bruno Haible <bruno@clisp.org>
Detect and work around bug in Irix 5.3 sigaltstack.
* m4/sigaltstack.m4 (SV_SIGALTSTACK): Test for broken stack_t direction
in sigaltstack.
* src/handler-unix.c (stackoverflow_install_handler): Adjust stack
accordingly.
* tests/stackoverflow1.c (stack_lower_bound, stack_upper_bound): New
variables.
(stackoverflow_handler): Use them to expose IRIX bug.
(main): Initialize them.
2008-09-07 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.2.6.
* m4/ltoptions.m4: Likewise.
* m4/ltsugar.m4: Likewise.
* m4/ltversion.m4: Likewise.
* build-aux/ltmain.sh: Likewise.
2008-08-25 Bruno Haible <bruno@clisp.org>
* Version 2.6 released.
2008-08-24 Bruno Haible <bruno@clisp.org>
* configure.ac: Treat Dragonfly BSD platforms like FreeBSD.
Reported by Thomas Klausner <tk@giga.or.at>.
2008-08-24 Bruno Haible <bruno@clisp.org>
* src/stackvma-mincore.c (mincore_is_near_this): Improve logic. Needed
for reliable NULL pointer access classification as SIGSEGV on AIX 4.3.
2008-08-24 Bruno Haible <bruno@clisp.org>
* m4/sigaltstack.m4: Change 'volatile int' return type to 'int'. Needed
for AIX 4.3 xlc.
* m4/sigaltstack-longjmp.m4: Likewise.
* m4/sigaltstack-siglongjmp.m4: Likewise.
* tests/stackoverflow1.c (recurse): Likewise.
* tests/stackoverflow2.c (recurse): Likewise.
2008-08-24 Bruno Haible <bruno@clisp.org>
* tests/sigsegv1.c: Include <config.h>.
* tests/sigsegv2.c: Likewise.
* tests/sigsegv3.c: Include <config.h> before all other headers.
* tests/stackoverflow1.c: Likewise.
* tests/stackoverflow2.c: Likewise.
2008-08-24 Bruno Haible <bruno@clisp.org>
Fix the sigsegv3 test on MacOS X.
* src/sigsegv.h.in (sigsegv_leave_handler): Take 4 arguments.
* NEWS: Mention the change.
* src/handler-macos.c (our_exception_thread, signalled_thread): New
variables.
(catch_exception_raise): Set signalled_thread during the user_handler
invocation.
(mach_exception_thread): Initialize our_exception_thread.
(sigsegv_leave_handler): Take 4 arguments. When called from within
the exception thread, let the signalled thread do a hyperjump.
* src/handler-unix.c (sigsegv_leave_handler): Take 4 arguments.
* src/handler-win32.c (sigsegv_leave_handler): Likewise.
* src/handler-none.c (sigsegv_leave_handler): Likewise.
* src/machfault-macos.h (SIGSEGV_INTEGER_ARGUMENT_1,
SIGSEGV_INTEGER_ARGUMENT_2, SIGSEGV_INTEGER_ARGUMENT_3,
SIGSEGV_FRAME_POINTER): New macros.
* tests/sigsegv3.c (handler_continuation): New function.
(handler): Update to new API.
* tests/stackoverflow1.c (stackoverflow_handler_continuation): New
function.
(stackoverflow_handler): Update to new API.
* tests/stackoverflow2.c (stackoverflow_handler_continuation): New
function.
(stackoverflow_handler, sigsegv_handler): Update to new API.
2008-08-24 Bruno Haible <bruno@clisp.org>
Test the use of sigsegv_leave_handler from within a SIGSEGV handler.
* tests/sigsegv3.c: New file.
* tests/Makefile.am (TESTS, noinst_PROGRAMS): Add sigsegv3.
2008-08-23 Eric Blake <ebb9@byu.net>
* src/Makefile.am (noinst_HEADERS): Remove machfault-macos-powerpc.h
and machfault-macos-i386.h. Add machfault-macos.h.
2008-08-17 Bruno Haible <bruno@clisp.org>
Allow building universal binaries on MacOS X.
* src/machfault-macos.h: New file, combining
src/machfault-macos-powerpc.h and src/machfault-macos-i386.h.
* src/machfault-macos-powerpc.h: Remove file.
* src/machfault-macos-i386.h: Remove file.
* configure.ac (CFG_MACHFAULT): Set to machfault-macos.h.
(FAULT_CONTEXT_INCLUDE) [MacOSX]: Set to #ifdefs for all four possible
architectures.
2008-07-20 Bruno Haible <bruno@clisp.org>
Make sigsegv_get_vma async-safe.
* src/sigsegv.h.in (sigsegv_handler_t, stackoverflow_handler_t):
Mention async-safety constraints.
+ src/stackvma-rofile.c: New file.
* src/stackvma-freebsd.c: Include stackvma-rofile.c.
(sigsegv_get_vma): Use struct rofile instead of FILE.
* src/stackvma-linux.c: Include stackvma-rofile.c.
(sigsegv_get_vma): Use struct rofile instead of FILE.
* src/stackvma-procfs.c: Include <sys/mman.h> instead of <stdlib.h> and
<stdio.h>.
(sigsegv_get_vma): Avoid using sprintf. Ensure pagesize is initialized.
Use mmap/munmap instead of malloc/free.
* src/Makefile.am (EXTRA_DIST): Add stackvma-rofile.c.
Reported by Eric Blake <ebb9@byu.net>.
2008-07-20 Bruno Haible <bruno@clisp.org>
* src/handler-unix.c (sigsegv_handler): Preserve errno.
2008-07-20 Eric Blake <ebb9@byu.net>
* src/stackvma-mincore.c (mincore_is_near_this): Fix logic.
2008-07-20 Bruno Haible <bruno@clisp.org>
* tests/stackoverflow2.c (main): Test also a NULL pointer access.
Reported by Eric Blake <ebb9@byu.net>.
2008-06-23 Bruno Haible <bruno@clisp.org>
* build-aux/config.guess: Update to GNU version 2008-06-16.
* build-aux/config.sub: Likewise.
2008-05-31 Bruno Haible <bruno@clisp.org>
Make cross-compile from MacOS X 10.5 to MacOS X 10.4 work.
* src/handler-macos.c (MacOS_X_10_5_HEADERS): New macro.
* src/machfault-macos-i386.h: Use it.
* src/machfault-macos-powerpc.h: Likewise.
Reported by Dr Tomaž Slivnik <slivnik@tomaz.name>.
2008-05-31 Bruno Haible <bruno@clisp.org>
* m4/mmap-anon.m4 (SV_MMAP_ANON): Add known cross-compile results for
MacOS X.
Reported by Dr Tomaž Slivnik <slivnik@tomaz.name>.
2008-05-27 Bruno Haible <bruno@clisp.org>
* configure.ac: Require at least autoconf 2.62. Merge
FAULT_CONTEXT_INCLUDE2 variable into FAULT_CONTEXT_INCLUDE.
* src/sigsegv.h.in: Remove FAULT_CONTEXT_INCLUDE2 substitution.
* src/Makefile.am (sigsegv.h.msvc): Update.
2008-05-27 Bruno Haible <bruno@clisp.org>
* configure.ac: Bump version number to 2.6.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
2008-05-27 Bruno Haible <bruno@clisp.org>
Support for 64-bit mode on MacOS X 10.5.
* src/handler-macos.c (catch_exception_raise): Align the stack pointer
also on x86_64. Needed for MMX instructions.
* src/machfault-macos-i386.h: Choose among 64-bit and 32-bit flavours.
Use new names for the 32-bit flavour when possible.
* src/machfault-macos-powerpc.h: Choose among 64-bit and 32-bit
flavours.
* configure.ac (FAULT_CONTEXT, FAULT_CONTEXT_INCLUDE2): Choose
right flavour (ppc_thread_state_t/ppc_thread_state64_t or
i386_thread_state_t/x86_thread_state32_t/x86_thread_state64_t) at
compile time.
2008-05-18 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.2.4.
* m4/ltoptions.m4: Likewise.
* m4/ltversion.m4: Likewise.
* m4/lt~obsolete.m4: Likewise.
* build-aux/ltmain.sh: Likewise.
2008-04-06 Bruno Haible <bruno@clisp.org>
* m4/libtool.m4: Update from libtool-2.2.2.
* m4/ltoptions.m4: New file, from libtool-2.2.2.
* m4/ltsugar.m4: New file, from libtool-2.2.2.
* m4/ltversion.m4: New file, from libtool-2.2.2.
* m4/lt~obsolete.m4: New file, from libtool-2.2.2.
* build-aux/ltmain.sh: New file, from libtool-2.2.2.
* configure.ac: Use LT_INIT instead of AC_PROG_LIBTOOL.
2007-11-16 Bruno Haible <bruno@clisp.org>
* src/fault-freebsd-i386.h (SIGSEGV_FAULT_STACKPOINTER): Use sc_rsp
also on x86_64-freebsd platform.
Reported by Dmitri Hrapof <hrapof@common-lisp.ru> and
Petr Salinger <Petr.Salinger@seznam.cz>.
2007-11-15 Bruno Haible <bruno@clisp.org>
* configure.ac (CFG_SIGNALS, CFG_FAULT): Port to i586-kfreebsd-gnu
and x86_64-kfreebsd-gnu.
* src/fault-freebsd-i386.h (SIGSEGV_FAULT_STACKPOINTER): Likewise.
Based on patch by Petr Salinger <Petr.Salinger@seznam.cz>.
2007-11-11 Bruno Haible <bruno@clisp.org>
* Version 2.5 released.
2007-11-11 Bruno Haible <bruno@clisp.org>
* configure.ac: Bump version number to 2.5.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
2007-10-28 Bruno Haible <bruno@clisp.org>
* src/handler-macos.c (catch_exception_raise): Align the new stack
pointer on a 16-byte boundary.
* src/handler-win32.c (main_exception_filter): Correct alignment:
%esp must be aligned to == -4 mod 16 upon function entry.
2007-10-28 Bruno Haible <bruno@clisp.org>
* src/sigsegv.h.in (stackoverflow_install_handler): Avoid comment
inside comment.
Reported by Chris Willmore <willmc@rpi.edu>.
2007-10-28 Bruno Haible <bruno@clisp.org>
* src/machfault-macos-powerpc.h (SIGSEGV_FAULT_ADDRESS,
SIGSEGV_STACK_POINTER, SIGSEGV_PROGRAM_COUNTER): Add __DARWIN_UNIX03
conditional.
* src/machfault-macos-i386.h (SIGSEGV_FAULT_ADDRESS,
SIGSEGV_STACK_POINTER, SIGSEGV_PROGRAM_COUNTER): Likewise.
* src/fault-macosdarwin7-powerpc.h (SIGSEGV_FAULT_STACKPOINTER):
Likewise.
* src/fault-macosdarwin7-powerpc.c (get_fault_addr): Likewise.
Reported by Chris Willmore <willmc@rpi.edu>.
2007-01-12 Bruno Haible <bruno@clisp.org>
* Makefile.am (check-next): Don't ask for reports from x86_64-*-linux*
platforms.
2006-07-14 Bruno Haible <bruno@clisp.org>
* m4/sigaltstack.m4 (SV_SIGALTSTACK): Use SIGSTKSZ instead of
hardcoding 16384.
* m4/sigaltstack-longjmp.m4 (SV_TRY_LEAVE_HANDLER_LONGJMP): Likewise.
* m4/sigaltstack-siglongjmp.m4 (SV_TRY_LEAVE_HANDLER_SIGLONGJMP):
Likewise.
* tests/stackoverflow1.c (main): Likewise.
* tests/stackoverflow2.c (main): Likewise.
* src/sigsegv.h.in (stackoverflow_install_handler): Update
recommendation for extra_stack_size.
Needed for ia64.
Reported by Peter Van Eynde <pvaneynd@users.sourceforge.net>.
2006-06-23 Bruno Haible <bruno@clisp.org>
* Version 2.4 released.
2006-06-23 Bruno Haible <bruno@clisp.org>
* configure.ac: Bump version number to 2.4.
* src/sigsegv.h.in (LIBSIGSEGV_VERSION): Likewise.
2006-06-17 Bruno Haible <bruno@clisp.org>
* src/Makefile.am (noinst_HEADERS): Add fault-netbsd.h.
2006-06-17 Bruno Haible <bruno@clisp.org>
* m4/sigaltstack.m4: Insert 'volatile' and pass a pointer, to defeat
GCC 4 optimizations.
* m4/sigaltstack-longjmp.m4: Likewise.
* m4/sigaltstack-siglongjmp.m4: Likewise.