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* Fix SetThreadName with current gdbJon Turney2016-08-251-1/+6
| | | | | | | | | | | Wrap SetThreadName()'s call to RaiseException() in __try/__except/__endtry, so that if the attached debugger doesn't know about MS_VC_EXCEPTION (e.g. current gdb and probably strace as well) and continues exception processing, we ignore it, rather than dying due an unhandled exception. Also remove an unnecessary cast in the RaiseException() invocation. Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
* Include winsup.h prior to including other headersCorinna Vinschen2016-08-241-2/+5
| | | | | | Otherwise _GNU_SOURCE is not set when needed in sys/features.h. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Clarify Cygwin's support for Win32 pathsKen Brown2016-08-231-5/+9
| | | | See https://www.cygwin.com/ml/cygwin/2016-08/msg00431.html.
* Add missing LF in release textCorinna Vinschen2016-08-231-0/+1
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Export and document strerror_l, strptime_l, wcsftime_l from CygwinCorinna Vinschen2016-08-234-12/+16
| | | | | | Bump Cygwin API minor number. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Implement GNU extension strptime_lCorinna Vinschen2016-08-232-27/+48
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Implement GNU extension wcsftime_lCorinna Vinschen2016-08-231-0/+1
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Implement missing POSIX-1.2008 function strerror_lCorinna Vinschen2016-08-232-0/+8
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Send thread names to debuggerJon Turney2016-08-237-1/+38
| | | | | | | | | | | | | | | | | | GDB since commit 24cdb46e [1] can report and use these names. Add utility function SetThreadName(), which sends a thread name to the debugger. Use that: - to set the default thread name for main thread and newly created pthreads. - in pthread_setname_np() for user thread names. - for helper thread names in cygthread::create() - for helper threads which are created directly with CreateThread. Note that there can still be anonymous threads, created by system or injected DLLs. [1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=24cdb46e9f0a694b4fbc11085e094857f08c0419
* Add pthread_getname_np and pthread_setname_npJon Turney2016-08-238-2/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds pthread_getname_np and pthread_setname_np. These were added to glibc in 2.12[1] and are also present in some form on NetBSD and several UNIXes. The code is based on NetBSD's implementation with changes to better match Linux behaviour. Implementation quirks: * pthread_setname_np with a NULL pointer segfaults (as linux) * pthread_setname_np returns ERANGE for names longer than 16 characters (as linux) * pthread_getname_np with a NULL pointer returns EFAULT (as linux) * pthread_getname_np with a buffer length of less than 16 returns ERANGE (as linux) * pthread_getname_np truncates the thread name to fit the buffer length. This guarantees success even when the default thread name is longer than 16 characters, but means there is no way to discover the actual length of the thread name. (Linux always truncates the thread name to 16 characters) * Changing program_invocation_short_name changes the default thread name (on linux, it has no effect on the default thread name) I'll leave it up to you to decide if any of these matter. This is implemented via class pthread_attr to make it easier to add pthread_attr_[gs]etname_np (present in NetBSD and some UNIXes) should it ever be added to Linux (or we decide we want it anyway). [1] https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS
* Reference __global_locale only via __get_global_locale.Corinna Vinschen2016-08-231-3/+3
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Avoid truncating from long double to double in sinhl().David Wohlferd2016-08-221-1/+1
| | | | | | | | This routine makes a call to fabs instead of fabsl(), causing truncation. Clang complains (warning: absolute value function 'fabs' given an argument of type 'long double' but has parameter of type 'double' which may cause truncation of value). Signed-off-by: David Wohlferd <dw@LimeGreenSocks.com>
* sqrt: Fix NaN propagation for IEEE Std 754-2008Ray Donnelly2016-08-221-3/+2
| | | | | | | | | | | | | | | | | | | | | | | The R language has some hacks specifically for mingw-w64 that were caused by our handling of NaNs in sqrt(x). R uses a special valued NaN to mean 'Not Available' and expects it to be retained through various calculations. Our sqrt(x) doesn't do this, instead it normalises such a NaN (retaining sign). From: http://wwwf.imperial.ac.uk/~drmii/M3SC_2016/IEEE_2008_4610935.pdf "6.2.3 NaN propagation An operation that propagates a NaN operand to its result and has a single NaN as an input should produce a NaN with the payload of the input NaN if representable in the destination format." There might even be a slight speed-up from this too. Thanks to Duncan Murdoch for finding the reference.
* Document nl_langinfo_l and separate POSIX from GNU extensions in release messageCorinna Vinschen2016-08-203-18/+29
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Implement missing POSIX function nl_langinfo_lCorinna Vinschen2016-08-202-1/+3
| | | | | | | | | | | | Change nl_langinfo to nl_langinfo_l using locale given as argument. Remove outdated TRANSITION_PERIOD_HACK. The codeset is stored in the locale for quite some time now. For !MB_CAPABLE targets, just return "US_ASCII" as codeset. Implement nl_langinfo by calling nl_langinfo_l. Export nl_langinfo_l from Cygwin DLL and bump minor API version number. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Introduce __current_locale_charset/__locale_charsetCorinna Vinschen2016-08-202-3/+4
| | | | | | | | | The former __locale_charset always fetched the current locale's charset. We need the per-locale charset, too, in future. Rename __locale_charset to __current_locale_charset and change __locale_charset to take a locale_t as parameter. Accommodate througout. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Only define __getreent inline function when building newlib or CygwinCorinna Vinschen2016-08-205-3/+14
| | | | | | | | | | | | | | | | | | | | | | | | Commit 6f3943b erroneously removed the `#ifdef _COMPILING_NEWLIB' guarding the __getreent inline function. This patch ignored the fact that config.h is included when building applications, and the code in question requires internal, auto-generated headers to be available which are not exposed to user-space. Reinstantiate defined(_COMPILING_NEWLIB) test and alternatively check for defined (__INSIDE_CYGWIN__), otherwise we'd have to reinstantiate the __getreent macro in cygtls.h which is really confusing. While testing it turned out that a low number of source codes inside Cygwin won't see the inline __getreent due to a missing __INSIDE_CYGWIN__ definition. For malloc.cc this was actually deliberate to get different definitions from including cygmalloc.h. Change this by defining __INSIDE_CYGWIN__ in malloc.cc but changing the test in cygmalloc.h to test for defined(DLMALLOC_VERSION). This might need a change if we ever get around to replace dlmalloc with a newer, more threading-aware malloc implementation. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Add release message for commit eb61113Corinna Vinschen2016-08-192-0/+6
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Add release message for commit a871644Corinna Vinschen2016-08-191-0/+4
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Simplify "Windows-standard-like" permissionsCorinna Vinschen2016-08-192-23/+22
| | | | | | | | | | | | | | | | | | | | | | | | Commit 97d0449 left a bit to be desired. First, the fact that any new-style ACL couldn't be "standard ACL" anymore was very much over the top. On one hand Admins and SYSTEM ACEs are not supposed to be masked, but on the other hand we *must* create the CLASS_OBJ because otherwise we don't have information about masking the execute perms for both groups. The ACL would also fail aclcheck. And while get_posix_access now returns the "is standard acl" flag, it hasn't been utilized by set_created_file_access. Rather, set_created_file_access has simply continued to check for nentries > MIN_ACL_ENTRIES, which led to all kinds of weird group and CLASS_OBJ perms. The new code now always manipulates CLASS_OBJ perms if a CLASS_OBJ is present, and it always manipulates group perms if the ACL has been marked as "standard" ACL. Another problem (not related to commit 97d0449) is the order get_posix_access adds missing perms. CLASS_OBJ perms are computed *before* missing GROUP_OBJ perms have been added. Thus the CLASS_OBJ perms could be too tight and led to additional, buggy DENY ACEs. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Fix outdated S_JUSTCREATED commentCorinna Vinschen2016-08-191-3/+3
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Reinstantiate Cygwin function called `__getreent'Corinna Vinschen2016-08-182-2/+7
| | | | | | | | | | This partially reverts commit 10a30e7 as far as the Cygwin version of the __getreent function is concerned. Remove _COMPILING_NEWLIB guard only allowing to use __getreent inline function when building newlib, since we wan to use it in Cygwin as well. Signed-off-by: Corinna Vinschen <corinna@vinschen.de> Signed-off-by: Stefan Assmann <sassmann@redhat.com>
* Revert "Fix __getreent function for Cygwin"Corinna Vinschen2016-08-181-2/+1
| | | | | | | | | | | This reverts commit 4de8596. It worked around a problem which was actually introduced by patch 10a30e7 a few weeks ago. Rather than adding special code to the newlib version of __getreent, the followup patch reinstantiates the original, Cygwin-only implementation of __getreent. Signed-off-by: Corinna Vinschen <corinna@vinschen.de> Signed-off-by: Stefan Assmann <sassmann@redhat.com>
* Workaround AzureAD shortcomingsCorinna Vinschen2016-08-181-10/+90
| | | | | | | | | | | No real domain, no DC, no infos via NetUserGetInfo... nothing. Just nothing. Use fixed uid 0x1000 (4096) for AzureAD user and gid 0x1001 (4097) for AzureAD group. Note that this group is part of the user token, but it's not the primary group. The primary group SID is, unfortunately, the user's SID. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Fix __getreent function for CygwinCorinna Vinschen2016-08-181-1/+2
| | | | | | | | | | | | | | | | | | So far the lib function __getreent always returned _impure_ptr. On Cygwin this is only correct after _impure_ptr got initialized. The inline function in include/cygwin/config.h always returns the right _reent ptr, though. After introducing per-thread locales, the __getreent function is called prior to initialization of _impure_ptr (from dll_crt0_0) to access the locale pointer, which leads to a crash. Fix the __getreent lib function for Cygwin to return the correct _reent pointer all the time. Rename inline function to __inline_getreent and introduce a macro __getreent calling the inline function. Change the lib function __getreent to call __inline_getreent on Cygwin. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Add release message for commit c02ac89Corinna Vinschen2016-08-172-0/+8
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Add -i/--input option to locale(1)Corinna Vinschen2016-08-172-14/+34
| | | | | | | | | | | | | | | | | | | The default UI language returned by GetUserDefaultUILanguage does not necessarily reflect what the user really wants. E. g., the system could be en_US, but the desired language is en_CA, without having a CA langpack installed. Changing the settings under "Languages" and changing the keyboard layout is only affecting the so-called "Input language", while what's returned by GetUserDefaultUILanguage is the "Display language". Changing the latter requires installing MUI langpacks. Thus, we introduce a way to fetch the "Input language" using the -i or --input option. Also clean up documentation of locale(1). Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Rephrase release messageCorinna Vinschen2016-08-161-1/+1
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Fix typo in release messageCorinna Vinschen2016-08-161-1/+0
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Add release text for Cygwin 2.6.0Corinna Vinschen2016-08-153-29/+118
| | | | | | Move release/2.5.3 to release/2.6.0. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Implement strto[dflu]_l/wcsto[dflu]_lCorinna Vinschen2016-08-153-5/+36
| | | | | | | | | | Implement GNU extensions strtod_l, strtof_l, strtol_l, strtold_l, strtoll_l, strtoul_l, strtoull_l, wcstod_l, wcstof_l, wcstol_l, wcstold_l, wcstoll_l, wcstoul_l, wcstoull_l. Export from Cygwin, fix posix.xml. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Make sure alloca is called even when optimizing, fully init _REENTCorinna Vinschen2016-08-151-3/+7
| | | | Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Add sys/_locale.h header and fix up headersCorinna Vinschen2016-08-151-1/+12
| | | | Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Bump CygwinAPI minor.Corinna Vinschen2016-08-151-3/+5
| | | | Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Implement strfmon_lCorinna Vinschen2016-08-153-36/+64
| | | | | | Use latest code from FreeBSD Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Rename __get_locale_XXX to __get_XXX_locale to use unified naming schemeCorinna Vinschen2016-08-151-6/+6
| | | | Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Implement per-locale string functionsCorinna Vinschen2016-08-153-18/+56
| | | | | | | | | | | | strcasecmp_l, strcoll_l, strncasecmp_l, strxfrm_l, wcscasecmp_l, wcscoll_l, wcstrncasecmp_l, wcstrxfrm_l, strftime_l. Add missing CHEWOUT_FILES from previous patch. TODO: strfmon_l. Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Implement all per-locale ctype functionsCorinna Vinschen2016-08-154-34/+77
| | | | Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* posix.xml: Note duplocale, freelocale, newlocale, uselocale as implementedCorinna Vinschen2016-08-151-4/+4
| | | | Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Fix memory handling in functions called from loadlocaleCorinna Vinschen2016-08-151-20/+24
| | | | Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Implement newlocale, freelocale, duplocale, uselocaleCorinna Vinschen2016-08-152-3/+8
| | | | | | | | Add global const __C_locale for reference purposes. Bump Cygwin API minor number and DLL major version number to 2.6.0. Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Rearrange struct __locale_t pointers into an arrayCorinna Vinschen2016-08-151-9/+9
| | | | | | | This allows looping through the structs and buffers. Also rearrange definitions to follow order of LC_xxx values. Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Change loadlocale to fill a __locale_t given as parameterCorinna Vinschen2016-08-152-4/+4
| | | | | | | | | | | | Don't use global variables. This allows to call loadlocale from the yet to be created newlocale(). Rename _thr_locale_t to __locale_t (these locales are not restricted to threads so the name is misleading). Along these lines, fix _set_ctype to take a __locale_t as parameter. Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Consolidate wctomb/mbtowc calls for POSIX-1.2008Corinna Vinschen2016-08-158-140/+109
| | | | | | | | | | | | | | | | | | | | | - Remove charset parameter from low level __foo_wctomb/__foo_mbtowc calls. - Instead, create array of function for ISO and Windows codepages to point to function which does not require to evaluate the charset string on each call. Create matching helper functions. I.e., __iso_wctomb, __iso_mbtowc, __cp_wctomb and __cp_mbtowc are functions returning the right function pointer now. - Create __WCTOMB/__MBTOWC macros utilizing per-reent locale and replace calls to __wctomb/__mbtowc with calls to __WCTOMB/__MBTOWC. - Drop global __wctomb/__mbtowc vars. - Utilize aforementioned changes in Cygwin to get rid of charset in other, calling functions and simplify the code. - In Cygwin restrict global cygheap locale info to the job performed by internal_setlocale. Use UTF-8 instead of ASCII on the fly in internal conversion functions. - In Cygwin dll_entry, make sure to initialize a TLS area with a NULL _REENT->_locale pointer. Add comment to explain why. Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* POSIX-1.2008 per-thread locales, groundwork part 2Corinna Vinschen2016-08-153-48/+37
| | | | | | | | | Move all locale category structure definitions into setlocale.h and remove other headers in locale subdir. Create inline accessor functions for current category struct pointers and use throughout. Use pointers to "C" locale category structs by default in __global_locale. Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* POSIX-1.2008 per-thread locales, groundwork part 1Corinna Vinschen2016-08-154-37/+65
| | | | | | | | | | | | | | | | Introduce first cut of struct _thr_locale_t used for the locale_t definition. Introduce global instance called __global_locale used by default. Introduce internal inline functions __get_global_locale, __get_locale_r, __get_current_locale. Remove usage of global variables in favor of accessor functions pointing to __global_locale for now. Include all local headers in locale subdir from setlocale.h to get single include for internal locale access. Introduce __CTYPE_PTR macro to replace direct access to __ctype_ptr__ and use throughout in isxxx functions. Signed-off by: Corinna Vinschen <corinna@vinschen.de>
* Remove unused import/rexec.c accidentally imported by commit b6e90a06Corinna Vinschen2016-08-121-391/+0
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* kill(pid, sig) before waitpid() returns -1 for sig != 0Erik Bray2016-08-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a followup to a report back in 2011 about essentially the same issue: https://cygwin.com/ml/cygwin/2011-04/msg00031.html The same test program in that report demonstrates the issue, but with kill sending any non-zero signal. To reiterate, the problem here is POSIX compliance with respect to sending signals to zombie processes. http://pubs.opengroup.org/onlinepubs/9699919799/functions/kill.html claims: Existing implementations vary on the result of a kill() with pid indicating an inactive process (a terminated process that has not been waited for by its parent). Some indicate success on such a call (subject to permission checking), while others give an error of [ESRCH]. Since the definition of process lifetime in this volume of POSIX.1-2008 covers inactive processes, the [ESRCH] error as described is inappropriate in this case. In particular, this means that an application cannot have a parent process check for termination of a particular child with kill(). (Usually this is done with the null signal; this can be done reliably with waitpid().) In response to the originally issue, this was fixed *specifically* for the case of kill(pid, 0). But my reading of the above is that kill() should return 0 in this case regardless of the signal (modulo permissions, etc.). On Linux, for example, when calling kill with pid of a zombie process the kernel will happily deliver the signal to the relevant task_struct; it will just never be acted on since the task will never run again. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Workaround for filesystems with broken FileAllInformation info class (NcFsd)Corinna Vinschen2016-08-051-1/+24
| | | | | | See discussion starting at https://cygwin.com/ml/cygwin/2016-07/msg00350.html Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Fix console clear screen if buffer is fullCorinna Vinschen2016-08-031-13/+22
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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