* autoload.cc (SetThreadStackGuarantee): Import.
* cygtls.h (struct _cygtls): Replace thread_context with a ucontext_t
called context.
* exceptions.cc (exception::handle): Exit from process via signal_exit
in case sig_send returns from handling a stack overflow SIGSEGV.
Explain why.
(dumpstack_overflow_wrapper): Thread wrapper to create a stackdump
from another thread.
(signal_exit): Fix argument list to reflect three-arg signal handler.
In case we have to create a stackdump for a stack overflow condition,
do so from a separate thread. Explain why.
(sigpacket::process): Don't run signal_exit on alternate stack.
(altstack_wrapper): Wrapper function to do stack correction when
calling the signal handler on an alternate stack to handle a stack
overflow. Make sure to have lots of comments.
(_cygtls::call_signal_handler): Drop local context variable to reduce
stack pressure. Use this->context instead. Change inline assembler
to call altstack_wrapper.
(_cygtls::signal_debugger): Accommodate aforementioned change to
struct _cygtls.
* tlsoffset.h: Regenerate.
* tlsoffset64.h: Regenerate.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
The CHECK_INIT() is necessary before the _newlib_flockfile_start() since
this would use otherwise acquire an uninitialized lock which gets
initialized after this leading to a corrupt release.
newlib/ChangeLog
2015-07-01 Sebastian Huber <sebastian.huber@embedded-brains.de>
libc/stdio/fputs.c (_puts_r): Add missing CHECK_INIT().
libc/stdio/gets.c (_gets_r): Add missing _REENT_SMALL_CHECK_INIT() and
CHECK_INIT(). Use _stdin_r() to get the file pointer instead of stdin.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* fork.cc (frok::parent): Set stacktop value based on requested stack
pointer value in child. Explain why.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* exceptions.cc (_cygtls::call_signal_handler): Drop manipulating
thread's ss_flags here. It's not safe against longjmp.
* signal.cc (sigaltstack): Check if we're running on the alternate
stack and set ss_flags returned in oss to SS_ONSTACK.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* include/cygwin/signal.h: Revert to define MINSIGSTKSZ and SIGSTKSZ
here with bigger values to allow _cygtls to reside on signal stack,
should it turn out to be required at one point.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* resource.cc (getrlimit): Fix values returned by RLIMIT_STACK.
Explain why this had to be changed.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
These source files have makedoc markup, but aren't listed to be chewed by
makedoc. I am assuming that is accidental.
Future work: Note that stdio/fseeko.c, stdio/ftello.c and common/s_isnand.c have
makedoc markup, but duplicate stdio/fseek.c, stdio/ftell.c and common/s_isnan.c
respectively.
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/ctype/Makefile.am (CHEWOUT_FILES): Add isblank.def.
* libc/ctype/ctype.tex: Include isblank and add to menu.
* libc/posix/Makefile.am (CHEWOUT_FILES): Add posix_spawn.def.
* libc/posix/posix.tex: Include posix_spawn and add to menu.
* libc/stdio64/Makefile.am (CHEWOUT_FILES): Add fdopen.def.
* libc/stdio64/stdio64.tex: Include fdopen64 and add to menu.
* libc/stdio64/fdopen64.c: Improve one-line description.
* libc/string/Makefile.am (CHEWOUT_FILES): Add strchrnul.def.
* libc/string/strings.tex: Include strchrnul and add to menu.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
I think these are accidental omissions, as these source files are listed to be
chewed by makedoc, but the result is not included by any texinfo source file.
Future work: Nothing in libc/reent/ which is processed by makedoc is included by
reent.tex
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdlib/stdlib.tex: Include itoa and utoa, and add to menu.
* libc/string/strings.tex: Include memrchr and rawmemchr, and add
to menu.
* libm/math/math.tex: Include exp10 and pow10, and add to menu.
* libm/common/s_exp10.c: Improve one-line description.
* libm/common/s_exp10.c: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Don't chew files which contain no documentation markup.
Neither of the alternatives for MALLOCR (mallocr.c or nano-mallocr.c) contain
any documentation markup.
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdlib/Makefile.am (CHEWOUT_FILES): Remove $(MALLOCR).def.
* libc/stdio/Makefile.am (CHEWOUT_FILES): Remove getwc.def and
putwc.def.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Fix typo-ed function names in efgcvt.c documentation, neither gvcvt nor gdvtf
exists.
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdlib/efgcvt.c: Fix typo-ed function names in
documentation.
* libc/stdlib/stdlib.tex: Fix function name in menu to match.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Fix an inconsistent use of '.' to separate function names in FUNCTION. ',' is
used everywhere else.
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdio/fread.c: Fix inconsistent use of '.' to separate
function names in FUNCTION mark up.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdlib/llabs.c: Mark up parameter name in ANSI_SYNOPSIS.
* libc/time/tzset.c: Add and mark up parameter in SYNOPSIS.
* libm/common/s_nan.c: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdio/getchar_u.c: Fix a non-ANSI prototype in SYNOPSIS.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/string/wcscpy.c: Remove stray ',' from prototype in
ANSI_SYNOPSIS.
* libc/string/wcpcpy.c: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/signal/signal.tex: Use texinfo not makedoc markup.
* libc/stdio/stdio.tex: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Update list of pre-requisites, everything else is obsolete.
Future work: Ensure that the list of pre-requisites in FAQ 6.21 "How do I build
Cygwin" remains synchronized with this list.
2015-06-22 Jon Turney <jon.turney@dronecode.org.uk>
* README: Update.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-06-22 Jon Turney <jon.turney@dronecode.org.uk>
* Makefile.in (FAQ_SOURCES): Remove and generate with xidepend.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
v2:
intro.1 and cygwin.1 are identical. Make cygwin.1 a link to intro.1
Update dates in static man pages
v3:
Use doclifter to convert intro.[13] to DocBook XML
Clean up markup and fix a couple of spelling mistakes.
Build and install manpages from XML
v4:
Update to refer to GPLv3+, SUSv4
Simplify ulinks where anchor text is the same as the URL
2015-06-22 Jon Turney <jon.turney@dronecode.org.uk>
* Makefile.in (intro2man.stamp): Add.
* intro.xml: New file.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
v2:
Updated to use docbook2x-texi not docbook2texi, since source is now docbook XML.
Tweak DocBook XML so info directory entry has a description.
v3:
Use a custom charmap to handle ®
v4:
Proper build avoidance
texinfo node references may not contain ':', so provide alternate text for a few
xref targets
2015-06-22 Jon Turney <jon.turney@dronecode.org.uk>
* Makefile.in (install-info, cygwin-ug-net.info)
(cygwin-api.info): Add.
* cygwin-ug-net.xml: Add texinfo-node.
* cygwin-api.xml: Ditto.
* ntsec.xml (db_home): Add texinfo-node for titles containing a
':' which are the targets of an xref.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
* exceptions.cc (_cygtls::call_signal_handler): Drop pushing a register
on the original stack, it confuses GCC. Rearrange the assembler code
so that $rax/$eax is not used by GCC to prepare an argument value.
Use $rax/$eax without saving. Drop clearing $rbp/$epb.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* exceptions.cc (_cygtls::call_signal_handler): Drop subtracting 16
bytes from the alternate stack, it's not necessary. Safe all clobbered
registers. Safe one on the orignal stack, the others on the alternate
stack on both platforms.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Fix a cut and paste error in the command to create the man3 install directory,
added in 94f16969
2015-06-19 Jon Turney <jon.turney@dronecode.org.uk>
* Makefile.in (install-man): Fix command to create man3 install
directory.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-06-17 Jon Turney <jon.turney@dronecode.org.uk>
* man.xsl: New file.
* Makefile.in (utils2man.stamp, api2man.stamp): Use it.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Use 'xmlto man' to make manpages for utils
This will generate multiple .1 files as an output, but we don't know what they
will be called, so use a timestamp for build avoidance
2015-06-17 Jon Turney <jon.turney@dronecode.org.uk>
* Makefile.in (api2man.stamp): Add rules to build and install
manpages for cygwin-api.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Convert cygwin-api from using a sect2 element to using a refentry element for
each function. This makes it possible to generate manpage-style output for
those elements.
Note that the chunked html now generates a page for each function, rather than
one containing all functions.
Also:
Remove pointless and incorrect date
Move introductory paragraph from the first section to the start of the chapter
Add a funcsynopsisinfo element with the header file to be included to each
function prototype
Remove extern "C" which doesn't process into all formats successfully
2015-06-17 Jon Turney <jon.turney@dronecode.org.uk>
* cygwin-api.xml: Move introductory paragraph here.
* logon-funcs.xml: Convert from using a sect2 element to using a
refentry element for each function.
* misc-funcs.xml: Ditto.
* path.xml: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Since K&R style prototypes appear to be the default for HTML and FO, customize
the stylesheets rendering of funcsynopsis elements to generate ANSI style
prototypes instead.
2015-06-17 Jon Turney <jon.turney@dronecode.org.uk>
* fo.xsl: Render funcsynopsis elements as ANSI style function
prototypes.
* html.xsl: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
For clarity, rename cygwin.xsl as html.xsl, because that's what it is
2015-06-17 Jon Turney <jon.turney@dronecode.org.uk>
* html.xsl: Renamed from cygwin.xsl.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Use 'xmlto man' to make manpages for utils
(docbook2x-man could also be used, but since we already use xmlto...)
This will generate multiple .1 files as an output, but we don't know what they
will be called, so use a timestamp file for build avoidance when the
dependencies haven't changed.
2015-06-12 Jon Turney <jon.turney@dronecode.org.uk>
* Makefile.in (install-man, utils2man.stamp): Add rules to build
and install manpages for utils.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Convert utils.xml from using a sect2 element to using a refentry element for
each utility program. This makes it possible to generate manpage-style output
for those elements.
Note that the chunked html now generates a page for each utility, rather than
one containing all utilities.
A small customization to TOC generation for HTML and PDF is needed to ensure
that it appears as before, containing an entry for each utility command.
Future work: synopsis and options sections could use more detailed markup than
just wrapping the whole thing in <screen>
2015-06-12 Jon Turney <jon.turney@dronecode.org.uk>
* utils.xml : Convert from using a sect2 element to using a
refentry element for each utility program.
* cygwin.xsl: Customize autotoc to include refentries.
* fo.xsl: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
The cygwin-ug-net-nochunks.html.gz target does not ensure that the
cygwin-ug-net/ directory exists, so it can fail if run on it's own, or if the
cygwin-ug-net/cygwin-ug-net.html target has not yet created it in a parallel
make.
2015-06-12 Jon Turney <jon.turney@dronecode.org.uk>
* Makefile.in (cygwin-ug-net/cygwin-ug-net-nochunks.html.gz):
Ensure cygwin-ug-net directory exists.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Corinna Vinschen
Sebastian Huber
Jon TURNEY
Ken Brown