Commit Graph

17 Commits

Author SHA1 Message Date
Corinna Vinschen e753e4129a Always allocate main thread stack from pthread stack area on x86_64.
* dcrt0.cc: Semi-revert commit 12743c2d5d.
        (dll_crt0_0): Drop setting wow64_needs_stack_adjustment on 64 bit.
        (_dll_crt0): Split out 64 bit code again and always create new main
        thread stack, unless forked off from the non main thread in the parent.
        Call create_new_main_thread_stack with parent stack commitsize if
        started from the parent's main thread.
        Only call child_info_fork::alloc_stack for the latter case on 64 bit.
        Slightly rearrange moving rsp and rbp to new stack and document how.
        Revert 32 bit wow64 handling to its former self.
        * miscfunc.cc (create_new_main_thread_stack): Take a commitsize
        parameter and use it if it's not 0.  Don't set _main_tls here, it's
        done in the caller _dll_crt0 anyway.  Return stackbase - 16 bytes,
        rather than stacklimit (which was very wrong anyway).
        * miscfuncs.h (create_new_main_thread_stack): Accommodate declaration
        to aforementioned change.
        * wincap.h (wincaps::has_3264_stack_broken): Remove element.
        * wincap.cc: Ditto, throughout.
        * wow64.cc: Semi-revert to pre-12743c2d5d2721f3a80b4d7671a349be03c1f520
        but keep architecture-agnostic type changes intact.  Fix formatting.
        * wow64.h: Revert to pre-12743c2d5d2721f3a80b4d7671a349be03c1f520.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-12-07 16:10:55 +01:00
Corinna Vinschen 8a14e51901 Always move 64 bit main thread stack to defined pthread stack area
x86_64 only:
        * dcrt0.cc (_dll_crt0): Always move stack to pthread stack area.
        Explain why.
        * miscfuncs.cc (create_new_main_thread_stack): New function to create
        OS-like stack for main thread in pthread stack area.
        * miscfuncs.cc (create_new_main_thread_stack): Declare.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-12-03 13:31:18 +01:00
Corinna Vinschen a62dbcd6e0 * gendef: Export _sigbe on 64 bit as well.
* malloc_wrapper.cc (free): In malloc_printf, call caller_return_address
	instead of __builtin_return_address.
	(malloc): Ditto.
	(realloc): Ditto.
	(calloc): Ditto.
	* miscfuncs.cc (__caller_return_address): New function.
	* miscfuncs.h (caller_return_address): New macro calling
	__caller_return_address.
	(__caller_return_address): Add prototype.
2015-01-16 16:19:37 +00:00
Corinna Vinschen 9d2eff6684 * cygheap.cc (init_cygheap::find_tls): Add comment.
* cygtls.cc (well_known_dlls): Rephrase comment.
	(bloda_detect): New function.
	(_cygtls::call2): Call init_thread and bloda_detect for non-pthread
	threads only.
	(_cygtls::remove): Move remove_tls and remove_wq calls up to run first.
	* miscfuncs.cc (struct pthread_wrapper_arg): Rename from struct
	thread_wrapper_arg.
	(pthread_wrapper): Rename from thread_wrapper and drop "static".  Fix
	comment.  Drop call to _cygtls::remove.  Call api_fatal rather than
	ExitThread.  Explain why.
	* miscfuncs.h (pthread_wrapper): Declare pthread_wrapper.
	* thread.cc (pthread::exit): Add a FIXME comment.  Call _cygtls::remove
	before calling ExitThread.
2014-11-28 12:10:12 +00:00
Corinna Vinschen 1e705e2932 * miscfuncs.h (NT_readline::close): New function to close handle.
(NT_readline::~NT_readline): Call close.
	* sec_auth.cc (verify_token): Use constructor to initialize tok_usersid.
	* security.h (cygsid::cygsid): Add copy constructor taking cygsid as
	source.
2014-02-16 16:02:18 +00:00
Corinna Vinschen 234074f683 * miscfuncs.h (class NT_readline): New class to implement line-wise
reading from file using native NT functions.
	* miscfuncs.cc (NT_readline::init): New method.
	* mount.cc (mount_info::from_fstab): Utilize NT_readline to read
	fstab files.
2014-02-08 20:57:27 +00:00
Christopher Faylor 6e75c72b89 Throughout, change __attribute__ ((regparm (N))) to just __regN. Throughout,
(mainly in fhandler*) start fixing gcc 4.7.2 mismatch between regparm
definitions and declarations.
* gendef: Define some functions to take @ declaration to accommodate _regN
defines which use __stdcall.
* gentls_offsets: Define __regN macros as empty.
* autoload.cc (wsock_init): Remove unneeded regparm attribute.
* winsup.h (__reg1): Define.
(__reg2): Define.
(__reg3): Define.
* advapi32.cc (DuplicateTokenEx): Coerce some initializers to avoid warnings
from gcc 4.7.2.
* exceptions.cc (status_info): Declare struct to use NTSTATUS.
(cygwin_exception::dump_exception): Coerce e->ExceptionCode to NTSTATUS.
* fhandler_clipboard.cc (cygnativeformat): Redefine as UINT to avoid gcc 4.7.2
warnings.
(fhandler_dev_clipboard::read): Ditto.
2013-01-21 04:34:52 +00:00
Christopher Faylor 4713b1b294 * malloc_wrapper.cc: Change 'use_internal_malloc' to 'use_internal' throughout.
(export_malloc_called): Delete.
(internal_malloc_determined): New variable.
(malloc_init): Control calculation of internal/external malloc based on
'internal_malloc_determined'.  Use import_address() to determine if malloc in
user_data is ours or not.
* miscfuncs.cc (thread_wrapper): Make static.
(__import_address): Define new function.
* miscfuncs.h (import_address): New define.
(__import_address): Declare new function.
2013-01-20 22:59:58 +00:00
Christopher Faylor c3a4634985 Revert the reversion and go with implementation described in cgf-000017, with
some modifications.
* init.cc (dll_entry): Revert previous change.
* miscfuncs.cc: Include sigproc.h for exit_thread declaration.
* winsup.h (ExitThread): Define as 'exit_thread' to ensure no accidental use.
* sigproc.cc (exit_thread): New function.
(wait_sig): Handle __SIGTHREADEXIT case.  Don't just block rather than
returning from this function.
* sigproc.h (__SIGTHREADEXIT): New enum.
(exit_thread): Declare.
* sync.cc (muto::release): Accept a tls command-line argument.
* sync.h (muto::release): Accept a tls command-line parameter.  Default to
&_my_tls.
* cygerrno.h (__set_errno): Define as extern so that no function code is ever
emitted.
* cygserver_ipc.h (cygserver_ipc.h): Ditto.
* miscfuncs.h (transform_chars): Ditto.
* path.h (has_attribute): Ditto.
* security.h (privilege_luid): Ditto.
* winsup.h (flush_file_buffers): Ditto.
2012-12-21 21:30:56 +00:00
Corinna Vinschen 165f575341 * miscfuncs.cc (WritePipeOverlapped): Define second parameter LPCVOID,
rather than PCVOID.
	* miscfuncs.h (WritePipeOverlapped): Ditto.
2012-06-27 13:35:48 +00:00
Corinna Vinschen f8b8b1be3c * miscfuncs.cc (CreatePipeOverlapped): New function.
(ReadPipeOverlapped): Ditto.
	(WritePipeOverlapped): Ditto.
	* miscfuncs.h: Declare new functions.
	* pinfo.cc (commune_process): Call WritePipeOverlapped instead of
	WriteFile.  Set timeout to 1 sec.
	(_pinfo::commune_request): Call ReadPipeOverlapped instead of ReadFile.
	Set timeout to 0.5 secs.
	* sigproc.cc (sig_send): Create pipe using CreatePipeOverlapped.
2011-08-13 10:28:15 +00:00
Christopher Faylor e1d5167d20 * miscfuncs.cc (create_pipe): Delete obsolete function.
* miscfuncs.h (create_pipe): Delete define.
* pipe.c (fhandler_pipe::create_selectable): Delete obsolete comment.
2011-08-12 16:55:35 +00:00
Corinna Vinschen cdb4231369 * cygwin.din (pthread_attr_getguardsize): Export.
(pthread_attr_setguardsize): Export.
	(pthread_attr_setstack): Export.
	(pthread_attr_setstackaddr): Export.
	* init.cc (dll_entry): Remove wow64_test_stack_marker.  Check for
	unusual stack address by testing stack addresses from current TEB.
	Check validity of _my_tls by testing if it's within the stack as
	given in current TEB.
	* miscfuncs.cc (struct thread_wrapper_arg): New structure used to
	push all required information to thread_wrapper function.
	(thread_wrapper): Wrapper function for actual thread function.
	If an application stack has been given, change %ebp and %esp so that
	the thread function runs on that stack.  If the thread has been created
	by CygwinCreateThread, set up the POSIX guard pages if necessary.
	(CygwinCreateThread): New function.
	* miscfuncs.h (CygwinCreateThread): Declare.
	* ntdll.h (struct _TEB): Define all members up to Peb.
	* posix.sgml (std-susv4): Move pthread_attr_getguardsize,
	pthread_attr_setguardsize and pthread_attr_setstack here.
	(std-deprec): Add pthread_attr_setstackaddr.
	* sysconf.cc (sca): Set _SC_THREAD_ATTR_STACKADDR to
	_POSIX_THREAD_ATTR_STACKADDR.
	* thread.cc (pthread::precreate): Copy pthread_attr stackaddr and
	guardsize members.
	(pthread::create): Call CygwinCreateThread.
	(pthread_attr::pthread_attr): Initialize guardsize.
	(pthread_attr_setstack): New function.
	(pthread_attr_setstackaddr): New function.
	(pthread_attr_setguardsize): New function.
	(pthread_attr_getguardsize): New function.
	(pthread_getattr_np): Copy attr.guardsize.
	* thread.h (pthread_attr): Add member guardsize.
	* include/pthread.h (pthread_attr_getguardsize): Declare.
	(pthread_attr_setguardsize): Declare.
	* include/cygwin/version.h: Bump API minor number.
2011-05-15 18:49:40 +00:00
Christopher Faylor 084ea5108e Throughout change all calls of low_priority_sleep (0) to yield ().
* miscfuncs.cc (yield): Rename from low_priority_sleep.  Remove all of the
logic which called Sleep() and just use SwitchToThread.
* miscfuncs.h (yield): Rename from low_priority_sleep.
(SLEEP_0_STAY_LOW): Delete unused define.
* shared.cc (memory_init): Move heap_init() call directly after shared memory
initialization to more closely mimic long-standing program flow.
* tty.cc (tty_list::terminate): Replace call to low_priority_sleep with Sleep.
2010-03-12 23:13:48 +00:00
Corinna Vinschen a657970571 * miscfuncs.h (transform_chars): Declare. Define inline variation here.
* mount.cc (mount_info::from_fstab): Remove extern declaration of
	transform_chars.
	* path.cc (tfx_chars): Move to strfuncs.cc.
	(transform_chars): Ditto.
	* strfunc.cc (tfx_chars): Moved here from path.cc.
	(transform_chars): Ditto.
	(sys_cp_wcstombs): Make UNICODE private use area conversion roundtrip
	save for all characters.
	(sys_cp_mbstowcs): Ditto, by removing special case for UTF-8 sequences
	representing U+f0XX UNICODE chars.  Fix typo in comment.
2009-11-02 11:42:04 +00:00
Corinna Vinschen 161211d186 * ctype.cc (_CTYPE_DATA_0_127): Add _B class to TAB character.
(__ctype_default): New character class array for default ASCII
	character set.
	(__ctype_iso): New array of character class array for ISO charsets.
	(__ctype_cp): Ditto for singlebyte Windows codepages.
	(tolower): Implement as distinct function to support any singlebyte
	charset.
	(toupper): Ditto.
	(__set_ctype): New function to copy singlebyte character classes
	corresponding to current charset to ctype_b array.
	Align copyright text to upstream.
	* dcrt0.cc (dll_crt0_1): Reset current locale to "C" per POSIX.
	* environ.cc (set_file_api_mode): Remove.
	(codepage_init): Remove.
	(parse_thing): Remove "codepage" setting.
	(environ_init): Set locale according to environment settings, or
	to current codepage, before converting environment to multibyte.
	* fhandler.h (fhandler_console::write_replacement_char): Drop argument.
	* fhandler_console.cc (dev_console::str_to_con): Call sys_cp_mbstowcs
	rather than MultiByteToWideChar.
	(fhandler_console::write_replacement_char): Always print a funny
	half filled square if a character isn't in the current charset.
	(fhandler_console::write_normal): Convert to using __mbtowc
	rather than next_char.
	* fork.cc (frok::child): Drop call to set_file_api_mode.
	* globals.cc (enum codepage_type) Remove.
	(current_codepage): Remove.
	* miscfuncs.cc (cygwin_wcslwr): Unused, dangerous.  Remove.
	(cygwin_wcsupr): Ditto.
	(is_cp_multibyte): Remove.
	(next_char): Remove.
	* miscfuncs.h (is_cp_multibyte): Drop declaration.
	(next_char): Ditto.
	* strfuncs.cc (get_cp): Remove.
	(__db_wctomb): New function to implement _wctomb_r functionality for
	doublebyte charsets using WideCharToMultiByte.
	(__sjis_wctomb): New function to replace unusable newlib function.
	(__jis_wctomb): Ditto.
	(__eucjp_wctomb): Ditto.
	(__gbk_wctomb): New function.
	(__kr_wctomb): Ditto.
	(__big5_wctomb): Ditto.
	(__db_mbtowc): New function to implement _mbtowc_r functionality for
	doublebyte charsets using MultiByteToWideChar.
	(__sjis_mbtowc): New function to replace unusable newlib function.
	(__jis_mbtowc): Ditto.
	(__eucjp_mbtowc): Ditto.
	(__gbk_mbtowc): New function.
	(__kr_mbtowc): New function
	(__big5_mbtowc): New function
	(__set_charset_from_codepage): New function.
	(sys_wcstombs): Reimplement, basically using same wide char to multibyte
	conversion as newlib's application level functions.  Plus extras.
	Add lengthy comment to explain.  Change return type to size_t.
	(sys_wcstombs_alloc): Just use sys_wcstombs.  Change return type to
	size_t.
	(sys_cp_mbstowcs): Replace sys_mbstowcs, take additional codepage
	argument.  Explain why.  Change return type to size_t.
	(sys_mbstowcs_alloc): Just use sys_mbstowcs.  Change return type to
	size_t.
	* wchar.h: Declare internal functions implemented in strfuncs.cc.
	(wcscasecmp): Remove.
	(wcsncasecmp): Remove.
	(wcslwr): Remove.
	(wcsupr): Remove.
	* winsup.h (codepage_init): Remove declaration.
	(get_cp): Ditto.
	(sys_wcstombs): Align declaration to new implementation.
	(sys_wcstombs_alloc): Ditto.
	(sys_cp_mbstowcs): Add declaration.
	(sys_mbstowcs): Define as inline function.
	(sys_mbstowcs_alloc): Align declaration to new implementation.
	(set_file_api_mode): Remove declaration.
	* include/ctype.h (isblank): Redefine to use _B character class.
	(toupper): Remove ASCII-only definition.
	(tolower): Ditto.
2009-03-24 12:18:34 +00:00
Christopher Faylor f7852548bb add missing file 2008-04-07 16:33:44 +00:00