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* dlfcn: Remove stray debug outputnewlib-snapshot-20170323Corinna Vinschen2017-03-221-1/+0
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: dlfcn: Fix reference countingCorinna Vinschen2017-03-211-8/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original dll_init code was living under the wrong assumption that dll_dllcrt0_1 and in turn dll_list::alloc will be called for each LoadLibrary call. The same wrong assumption was made for cygwin_detach_dll/dll_list::detach called via FreeLibrary. In reality, dll_dllcrt0_1 gets only called once at first LoadLibrary and cygwin_detach_dll once at last FreeLibrary. In effect, reference counting for DLLs was completely broken after fork: parent: l1 = dlopen ("lib1"); // LoadLibrary, LoadCount = 1 l2 = dlopen ("lib1"); // LoadLibrary, LoadCount = 2 fork (); // LoadLibrary in the child, LoadCount = 1! child: dlclose (l1); // FreeLibrary actually frees the lib x = dlsym (l2); // SEGV * Move reference counting to dlopen/dlclose since only those functions have to keep track of loading/unloading DLLs in the application context. * Remove broken accounting code from dll_list::alloc and dll_list::detach. * Fix error handling in dlclose. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Implement dladdr() (partially)Jon Turney2017-03-081-0/+34
| | | | | | | Note that this always returns with dli_sname and dli_saddr set to NULL, indicating no symbol matching addr could be found. Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
* dlopen: on x/lib search x/bin if exe is in x/binnewlib-snapshot-20160923Michael Haubenwallner2016-09-081-1/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On 09/02/2016 11:03 AM, Corinna Vinschen wrote: > On Sep 2 10:46, Michael Haubenwallner wrote: >> On 09/01/2016 03:32 PM, Corinna Vinschen wrote: >>> You could just use the global variable program_invocation_name. If in >>> doubt, use the Windows path global_progname and convert it to full POSIX >>> via cygwin_conv_path. >> >> Patch updated, using global_progname now. > > Looks good and you're right to do it this way since I just noticed > that program_invocation_name may return a relative pathname. Yep. > Btw., in other calls which require the full POSIX path we use > mount_table->conv_to_posix_path instead of cygwin_conv_path (see > e. g. fillout_pinfo()). It's a bit faster. Maybe something for a > followup patch. No problem - attached. This renders the original patch 4/4 valid again. > Note for some later improvement: I really wonder why we don't store > the absolute POSIX path of the current executable globally yet... Same here. Thanks! /haubi/ >From f7255edd33cb4abe34f27188aab8dccdfa5dd2a0 Mon Sep 17 00:00:00 2001 From: Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com> Date: Wed, 31 Aug 2016 18:05:11 +0200 Subject: [PATCH 3/4] dlopen: on x/lib search x/bin if exe is in x/bin citing https://cygwin.com/ml/cygwin-developers/2016-08/msg00020.html > Consider the file /usr/bin/cygz.dll: > - dlopen (libz.so) success > - dlopen (/usr/bin/libz.so) success > - dlopen (/usr/lib/libz.so) fails * dlfcn.c (dlopen): For dlopen("x/lib/N"), when the application executable is in "x/bin/", search for "x/bin/N" before "x/lib/N".
* dlopen: switch to new pathfinder classMichael Haubenwallner2016-09-081-109/+201
| | | | | | | | | | | | Instead of find_exec, without changing behaviour use new pathfinder class with new allocator_interface around tmp_pathbuf and new vstrlist class. * pathfinder.h (pathfinder): New file. * vstrlist.h (allocator_interface, allocated_type, vstrlist): New file. * dlfcn.cc (dlopen): Avoid redundant GetModuleHandleExW with RTLD_NOLOAD and RTLD_NODELETE. Switch to new pathfinder class, using (tmp_pathbuf_allocator): New class. (get_full_path_of_dll): Drop.
* Switching the Cygwin DLL to LGPLv3+, dropping commercial buyout optioncygwin-2_5_2-releaseCorinna Vinschen2016-06-231-3/+0
| | | | | | | | | | | | | | Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause. Everything else stays under GPLv3+. New Linking Exception exempts resulting executables from LGPLv3 section 4. Add CONTRIBUTORS file to keep track of licensing. Remove 'Copyright Red Hat Inc' comments. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* dlopen: Add dot to filename if no slash is presentCorinna Vinschen2016-06-011-1/+1
| | | | | | | | We're appending a dot to the filename before calling LoadLibrary to override ".dll" automagic. This only worked for paths, not for simple filenames since it required a slash in the pathname. Fix that. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* * dlfcn.cc (check_path_access): Drop FE_NATIVE from find_exec call.Corinna Vinschen2015-02-111-3/+3
| | | | | | | | | | | | | | | | | | | | | (gfpod_helper): Drop equality sign from environment variable name in call to check_path_access. * exec.cc (execlp): Drop equality sign from environment variable name in call to find_exec. (execvp): Ditto. (execvpe): Ditto. * path.h (enum fe_types): Drop FE_NATIVE. (find_exec): Rename third paramter in declaration from search. Drop equality sign from default value. * spawn.cc (perhaps_suffix): Add PC_POSIX to path_conv::check call. (find_exec): Simplify function. Iterate over POSIX pathlist rather than Windows pathlist. Drop handling of FE_NATIVE flag. Always fill posix path of incoming path_conv buf, unless FE_NNF flag is given. (av::setup): Drop equality sign from environment variable name in call to find_exec. Call unshift with normalized_path. * winf.cc (av::unshift): Drop conv parameter and code converting Windows to POSIX path. * winf.h (av::unshift): Accommodate prototype.
* * dlfcn.cc (dlopen): Drop patch accommodating SetDllDiretory fromCorinna Vinschen2014-10-271-28/+1
| | | | 2014-10-14.
* * cygheap.cc (cygheap_fixup_in_child): Call set_dll_dir.Corinna Vinschen2014-10-171-4/+4
| | | | | | | | | | | | | | | | | (init_cygheap::init_installation_root): Just memmove contents of installation_root instead of calling GetModuleFileNameW again. Copy installation_root to installation_dir before stripping of "bin" dir. Don't call SetDllDirectory here. Explain what we do. (setup_cygheap): New function taking over initial cygheap setup from memory_init. Additionally call set_dll_dir. * cygheap.h (struct init_cygheap): Add installation_dir member. (init_cygheap::set_dll_dir): Define. (setup_cygheap): Declare. * dcrt0.cc: Throughout drop parameter from memory_init call. (dll_crt0_0): Call setup_cygheap prior to memory_init. * dlfcn.cc (dlopen): Change comment to point to the right function. * shared.cc (memory_init): Drop parameter. Drop cygheap setup. * shared_info.h (memory_init): Change declaration accordingly.
* * cygheap.cc (init_cygheap::init_installation_root): Install Cygwin'sCorinna Vinschen2014-10-141-1/+32
| | | | | | | | | | | installation dir as DLL search path, instead of ".". * cygheap.h (class cwdstuff): Add parameter names in function declarations for readability. (cwdstuff::get): Ad inline implementation fetching the CWD as wide char string. * dlfcn.cc (dlopen): Add searching for dependent DLLs in DLL installation dir or CWD, if all else failed. Add comment to explain scenarios this is accommodating.
* * dlfcn.cc (gfpod_helper): Only check for POSIX dir separator, same asCorinna Vinschen2014-10-121-1/+1
| | | | in get_full_path_of_dll.
* * dlfcn.cc (set_dl_error): Drop useless __stdcall.Corinna Vinschen2014-10-121-14/+13
| | | | | | | | | (check_path_access): Ditto. Drop FE_CWD from call to find_exec. (gfpod_helper): Call path_conv::check for all paths containing a dir separator to more closely follow the Linux search algorithm. (get_full_path_of_dll): Drop useless __stdcall. (dlopen): Simplify RTLD_NOLOAD case by calling GetModuleHandleEx instead of GetModuleHandle/LoadLibrary.
* * dlfcn.cc (dlopen): Disable old 32 bit code on 64 bit.Corinna Vinschen2014-10-101-0/+4
| | | | | * dcrt0.cc (check_sanity_and_sync): Ditto. * dll_init.cc (dll_dllcrt0_1): Fix typo in comment.
* * Merge in cygwin-64bit-branch.Corinna Vinschen2013-04-231-28/+4
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* Throughout, update copyrights to reflect dates which correspond to main-branchChristopher Faylor2013-01-211-2/+2
| | | | checkins. Regularize copyright format.
* * dlfcn.cc (gfpod_helper): Helper function to search DLL usingCorinna Vinschen2011-09-011-6/+46
| | | | | | a given DLL name. Change default search path to allow /usr/bin. (get_full_path_of_dll): Find DLLs even if the caller used a ".so" suffix or a "lib" prefix for the DLL.
* * dlfcn.cc (dlopen): Reimplement RTLD_NODELETE for Windows 2000 usingCorinna Vinschen2011-08-161-6/+21
| | | | | | | | | | internal datastructures. Explain the code. * ntdll.h (struct _LDR_DATA_TABLE_ENTRY): Define. (struct _PEB_LDR_DATA): Define. (struct _PEB): Change PVOID LoaderData to PPEB_LDR_DATA Ldr. * fhandler_process.cc (format_process_maps): Call NtQueryVirtualMemory with valid return length pointer. Explain why.
* * autoload.cc (GetModuleHandleExW): Define.Corinna Vinschen2011-08-161-11/+25
| | | | | | | | | | * dlfcn.cc: Throughout mark exported symbols as extern "C". (dlopen): Unignore flags argument. Define ret to NULL. Fix typo in comment. Support Glibc flags RTLD_NOLOAD and RTLD_NODELETE. * include/dlfcn.h: Clean up comments. (RTLD_NODELETE): Define. (RTLD_NOLOAD): Define. (RTLD_DEEPBIND): Define.
* whitespace eliminationChristopher Faylor2011-06-061-1/+1
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* * autoload.cc (EnumProcessModules): Remove.Corinna Vinschen2011-05-111-15/+37
| | | | | | | | | | * dlfcn.cc (dlopen): Make sure errno is set if an error occurs. (dlsym): Rewrite using RtlQueryProcessDebugInformation instead of EnumProcessModules. * ntdll.h (struct _DEBUG_MODULE_ARRAY): Define. (RtlCreateQueryDebugBuffer): Declare. (RtlDestroyQueryDebugBuffer): Declare. (RtlQueryProcessDebugInformation): Declare.
* * dlfcn.cc (get_full_path_of_dll): Revert patch from 2010-04-29.Corinna Vinschen2010-06-141-2/+2
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* * dlfcn.cc (get_full_path_of_dll): Handle non-existent file.Corinna Vinschen2010-04-291-2/+2
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* Update some copyrights.Christopher Faylor2010-02-281-12/+4
| | | | | | | | | | | | | | | | | | | | | | * cygtls.cc (_cygtls::call): Invoke new exception protection here. (_cygtls::init_thread): Remove conditionalized exception handler setup. (exception_list): Delete declaration. (_cygtls::init_exception_handler): Delete obsolete function. * cygtls.h: Remove (now) unneeded include. (_cygtls): Make this a real C++ class. (_cygtls::handle_exceptions): Remove. (_cygtls::init_exception_handler): Remove. (_cygtls::call2): Make private. (myfault::faulted): Remove unneeded parentheses. * dcrt0.cc (dll_crt0_1): Remove exception handler setup. * dlfcn.cc (dlopen): Ditto. (dlclose): Ditto. * dll_init.cc (dll_dllcrt0_1): Ditto. (dll_list::detach): Use new exception handler protection. * exceptions.cc (dump_exception): Rename to prevent confusion with new class. (exception::handle): Rename from _cygtls::handle_exceptions. Accommodate new exception class. Accommodate rename to dump_exception. * tlsoffsets.h: Regenerate.
* * cygtls.h (_cygtls::init_exception_handler): Eliminate argument.Christopher Faylor2010-02-261-3/+12
| | | | | | | | | | | | | | | | | | | | (_cygtls::andreas): Convert to a pointer. (san): Convert to a real class with methods. Use a linked list to keep track of previous handlers on the "stack". (myfault): Rewrite to use new san class rather than calling directly into _cygtls. * cygtls.cc (_cygtls::init_exception_handler): Just assume that we're always using the standard exception handler. (_cygtls::init_thread): Reflect loss of argument to init_exception_handler. * dcrt0.cc (dll_crt0_1): Ditto. * dfcn.cc (dlopen): Ditto. (dlclose): Reset the exception handler after FreeLibrary. * dll_init.cc (dll_list::detach): Make sure that the exception handler is initialized before calling destructors. * exceptions.cc (_cygtls::handle_exceptions): Accommodate new andreas pointer. * thread.cc (verifyable_object_isvalid): Pass objectptr to faulted for explicit NULL pointer checking. * tlsoffsets.h: Regenerate.
* * dlfcn.cc (dlopen): Make sure exception handler is really loaded after dynamicChristopher Faylor2010-02-241-0/+3
| | | | load.
* * dlfcn.cc (get_full_path_of_dll): Drop enforcing a .dll suffix.Corinna Vinschen2009-11-021-9/+6
| | | | | (dlopen): If last path component has no dot, append one to override automatic .dll suffix in LoadLibrary.
* * cxx.cc (default_cygwin_cxx_malloc): Enhance commenting.Corinna Vinschen2009-08-131-0/+21
| | | | | | | | | * dll_init.cc (dll_dllcrt0_1): Likewise. * dlfcn.cc (dlopen): Prevent dlopen()'d DLL from installing any cxx malloc overrides. * include/cygwin/cygwin_dll.h (__dynamically_loaded): New variable. * lib/_cygwin_crt0_common.cc (_cygwin_crt0_common): Check it and only install cxx malloc overrides when statically loaded. Extend comments.
* * dlfcn.cc (get_full_path_of_dll): Just return a bool value. DropCorinna Vinschen2009-04-161-23/+23
| | | | | | | local path_conv in favor of getting it as parameter. Add local string buffer instead of getting it as parameter. (dlopen): Accommodate get_full_path_of_dll change. Fetch WCHAR Windows path from path_conv variable and call LoadLibraryW.
* * dlfcn.cc (get_full_path_of_dll): Revert patch from 2008-07-16.Corinna Vinschen2009-03-191-2/+2
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* Add case-sensitivity.Corinna Vinschen2008-07-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unconditionally handle mount points case-sensitive. Unconditionally handle virtual paths case-sensitive. Unconditionally handle registry paths case-insensitive. Otherwise, accommodate case-sensitivity of given path throughout. * cygheap.cc (cygheap_root::set): Get additional caseinsensitive parameter and store it. * cygheap.h (struct cygheap_root_mount_info): Add member caseinsensitive. * dlfcn.cc (get_full_path_of_dll): Drop PC_NOFULL parameter from call to path_conv::check. * environ.cc (pcheck_case): Remove. (check_case_init): Remove. (known): Drop "check_case" option. * exceptions.cc (open_stackdumpfile): Add comment. * fhandler.cc (fhandler_base::get_default_fmode): Call pathmatch instead of strcasematch. * fhandler_disk_file.cc: Accommodate case-sensitivity of given path throughout. (__DIR_mounts::check_mount): Unconditionally check virtual paths case-sensitive. (fhandler_disk_file::link): Drop case clash handling. (fhandler_disk_file::open): Ditto. (fhandler_disk_file::readdir_helper): Drop managed mount code. * mount.cc: Remove managed mount code and datastructures. (struct opt): Remove "managed" option. Add "posix=0" and "posix=1" options. (fillout_mntent): Remove "managed" output. Add "posix" output. * path.cc (struct symlink_info): Remove case_clash member and case_check method. (pcheck_case): Remove. (path_prefix_p): Take additional bool parameter "caseinsensitive". (pathnmatch): Ditto. (pathmatch): Ditto. (mkrelpath): Ditto. (fs_info::update): Set caseinsensitive flag according to file system name and FILE_CASE_SENSITIVE_SEARCH flag. Add comment. (tfx_chars_managed): Remove. (transform_chars): Drop "managed" parameter. Always use tfx_chars. (get_nt_native_path): Drop "managed" parameter. Make sure drive letters are always upper case. (getfileattr): Change second parameter to denote caseinsensitivity. (path_conv::check): Initialize caseinsensitive to OBJ_CASE_INSENSITIVE. Set caseinsensitive according to global obcaseinsensitive flag, file system case sensitivity and MOUNT_NOPOSIX mount flag. Drop case_clash and all the related code. (symlink_worker): Drop case clash handling. (symlink_info::set): Drop setting case_clash. (symlink_info::case_check): Remove. (cwdstuff::set): Add comment. (etc::init): Take path_conv instead of PUNICODE_STRING as parameter to allow case sensitivity. * path.h (enum pathconv_arg): Drop PC_SYM_IGNORE. (enum case_checking): Remove. (enum path_types): Drop PATH_ENC, add PATH_NOPOSIX flag. (struct fs_info): Add caseinsensitive flag and accessor methods. (class path_conv): Add caseinsensitive member and define objcaseinsensitive method. Drop case_clash member and isencoded method. (pathmatch): Change prototype according to above change. (pathnmatch): Ditto. (path_prefix_p): Ditto. (get_nt_native_path): Ditto. (class etc): Ditto. (fnunmunge): Remove prototype. * shared.cc (shared_info::init_obcaseinsensitive): Initialize obcaseinsensitive flag from obcaseinsensitive registry value. (shared_info::initialize): Call init_obcaseinsensitive here by the first process creating the shared memory. * shared_info.h (mount_item::fnmunge): Remove. (shared_info::obcaseinsensitive): Rename from obcaseinsensitivity. (shared_info::init_obcaseinsensitive): Declare. * syscalls.cc (try_to_bin): Add comment. * include/sys/mount.h (MOUNT_ENC): Remove flag. (MOUNT_NOPOSIX): Add flag.
* Remove unneeded header files from source files throughout.Christopher Faylor2008-04-071-7/+0
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* * Fix copyright dates.Corinna Vinschen2008-04-011-1/+1
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* * dlfcn.cc (get_full_path_of_dll): Allow paths up to PATH_MAX.Corinna Vinschen2008-03-111-2/+4
| | | | | (dlopen): Call get_full_path_of_dll with path buffer allocate by tmp_pathbuf.
* * path.h (path_conv::operator char *): Delete.Corinna Vinschen2007-08-161-1/+1
| | | | | | | | | | | | | (path_conv::operator const char *): Delete. * dlfcn.cc: Throughout, replace path_conv::operator char * and path_conv::operator const char * by call to path_conv::get_win32 for easier transition to UNICODE_PATHs. * fhandler_socket.cc: Ditto. * hookapi.cc: Ditto. * path.cc: Ditto. * spawn.cc: Ditto. * syscalls.cc: Ditto. * uinfo.cc: Ditto.
* * debug.cc (close_handle): Change debug output format slightly.Christopher Faylor2007-07-101-3/+1
| | | | | | | | * dlfcn.cc (dlclose): Don't close handle returned from GetModuleHandle(NULL). * fhandler.h (fhandler_pipe::create): Remove obsolete argument. (fhandler_pipe::create): Ditto. * fhandler.cc (fhandler_pipe::create): Ditto. (fhandler_pipe::create): Ditto.
* * dlfcn.cc (check_path_access): Call find_exec with FE_DLL option.Corinna Vinschen2006-01-311-1/+1
| | | | | | | | | | | | * path.h (enum fe_types): Add FE_DLL value. * spawn.cc (std_suffixes): Remove. (exe_suffixes): New suffix_info for executing files. (dll_suffixes): New suffix_info for searching shared libraries. (perhaps_suffix): Add opt argument. Use dll_suffixes if FE_DLL option is given, exe_suffixes otherwise. (find_exec): Propagate opt argument to perhaps_suffix. Drop suffix check when testing execute permission. (spawn_guts): Call perhaps_suffix with FE_NADA opt argument.
* white spaceChristopher Faylor2005-08-121-1/+1
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* * dcrt0.cc (cygwin_dll_init): Now initializes main_environ and cygtls. CommentChristopher Faylor2005-06-041-2/+2
| | | | | to explain the caveats of this method. * how-cygtls-works.txt: New file.
* * dlfcn.cc (set_dl_error): Use UNIX error rather than Windows error.Christopher Faylor2005-05-301-1/+1
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* * spawn.cc (find_exec): Accept a PATH-like string in place of an environmentChristopher Faylor2005-05-221-1/+2
| | | | | | | | | | variable. * dlfcn.cc (get_full_path_of_dll): Search /usr/bin (for windows compatibility) and /usr/lib (for UNIX compatibility) when looking for shared libraries. * environ.cc (conv_envvars): Put back LD_LIBRARY_PATH since it is used by get_full_path_of_dll(). * errno.cc (errmap): Map MOD_NOT_FOUND to ENOENT. * cygmagic: Remove debugging cruft.
* white space and minor comment cleanup.Christopher Faylor2005-05-021-8/+8
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* Unify usage of CYG_MAX_PATH throughout. Change buffers fromCorinna Vinschen2005-04-031-1/+1
| | | | | size CYG_MAX_PATH + 1 to CYG_MAX_PATH. Change length tests accordingly.
* Reorganize header file inclusion throughout so that cygerrno.h comes first.Christopher Faylor2005-01-121-1/+1
| | | | | | | | | | * fhandler.h (select_record::thread_errno): Save any encountered errno here. (select_record::set_select_errno): New function. (select_record::saw_error): New function. (select_record::select_record): Initialize thread_errno to zero. * select.cc (set_handle_or_return_if_not_open): Set thread_errno on failure. (select_stuff::wait): Record errno for later resurrection in calling thread. (peek_serial): Ditto.
* * autoload.cc (EnumProcessModules): Add.Corinna Vinschen2004-09-141-1/+22
| | | | | * dlfcn.cc (dlsym): Handle RTLD_DEFAULT using EnumProcessModules(). * include/dlfcn.h (RTLD_DEFAULT): Define to NULL.
* Regularize most strace_prints throughout so that %E is always preceded by aChristopher Faylor2004-09-031-1/+1
| | | | comma and elminate most uses of "foo = %s" to "foo %s".
* * debug.h (console_printf): Define for non-debugging condition.Christopher Faylor2004-02-091-1/+1
| | | | | | | | | | | | | | * cygtls.h (_threadinfo::lock): Remove wait argument. (_threadinfo::interrupt_setup): Remove retaddr argument. * exceptions.cc (_threadinfo::interrupt_setup): Ditto. (_threadinfo::interrupt_now): Accommodate change to interrupt_setup argument. (setup_handler): Ditto. Always lock sig stack prior to determining interrupt method. * gendef (_sigfe): Correct thinko regarding cmpxchg. (_sigbe): Ditto. (_threadinfo::lock): Ditto. (_threadinfo::pop): Eliminate left-over stack unlock. * sigproc.cc (proc_subproc): Chnage debugging output to printed warning.
* * cygtls.h (_threadinfo::call): Remove regparm declaration to work aroundChristopher Faylor2004-01-141-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | compiler bug. * autoload.cc (TryEnterCriticalSection): Remove. * dcrt0.cc (dll_crt0_0): Delete inappropriate setting of _my_tls.stackptr to NULL since it has really bad consequences. Make 'si' an automatic variable. * cygtls.cc (_threadinfo::init_thread): Correct thinko which caused thread list to be allocated every time. * cygtls.h (CYGTLS_PADSIZE): Define as const int. * sync.h: Make multiple inclusion safe. (muto::next): Eliminate. (muto::exiting_thread): New variable. (muto::set_exiting_thread): New function. (new_muto): Change to use different section for mutos since c++ give inexplicable warning in some cases otherwise. (new_muto1): Ditto. * dcrt0.cc (do_exit): Call muto::set_exiting_thread here. * sync.cc (muto_start): Eliminate. (muto::acquire): Always give exiting thread a lock. Never give thread a lock if exiting. (muto::release): Ditto for releasing. * dtable.cc (dtable::init_lock): Unline function and define here. * dtable.h (lock_cs): Define as a muto since critical sections seem to work oddly on Windows Me. (lock): Accommodate switch to muto. (unlock): Ditto. * exceptions.cc (setup_handler): Don't worry about acquiring mutos since that hasn't mattered for a long time. (signal_exit): Ditto: muto stuff will be handled automatically on exit now. * Makefile.in (DLL_IMPORTS): Link advapi32 to ensure proper DLL initialization. * autoload.cc (RegCloseKey): Arbitrarily choose this function as a "seed" to pull the advapi32 link library in. So, comment out the autoloading. * cygtls.cc (_threadinfo::init_thread): Just clear CYGTLS_PADSIZE. (_threadinfo::remove): Add debugging. (_threadinfo::find_tls): Ditto. * cygtls.h (_threadinfo::padding): Make zero length (for now?). * dcrt0.cc (dll_crt0_0): Move more initialization here from dll_crt0_1. (dll_crt0_1): See above. * dtable.h (dtable::lock): Remove commented out critical section locking. * dtable.h (dtable::init_lock): Remove commented out critical section locking. * dtable.h (dtable::unlock): Remove commented out critical section locking. * exceptions.cc (interruptible): bool'ize. * init.cc (threadfunc_fe): Revert to storing threadfunc at stack bottom. (munge_threadfunc): Ditto. Avoid adding overhead to calibration_thread. (prime_threads): Don't initialize tls stuff. (dll_entry): Make minor change to initialization order. * tlsoffsets.h: Regenerate. * sigproc.cc (wait_sig): Add sanity check for end of process thread exit. * select.h: Make minor formatting change. * Makefile.in: Add still more -fomit-frame-pointer functions. * dtable.h (dtable::lock): New function. (dtable::unlock): New function. (dtable::init_lock): New function. * cygheap.h (HEAP_TLS): Declare new enum value. (init_cygheap::threadlist): Declare new array. (init_cygheap::sthreads): Declare new variable. (cygheap_fdmanip::~cygheap_fdmanip): Use new dtable lock/unlock functions. (cygheap_fdnew::cygheap_fdnew): Ditto. (cygheap_fdget::cygheap_fdget): Ditto. * dtable.cc (dtable_init): Initialize fdtab critical section. (dtable::fixup_after_fork): Ditto. (dtable::fixup_after_exec): Ditto. (dtable::dup2): Use lock/unlock calls to protect access to fdtab. (dtable::find_fifo): Ditto. (dtable::fixup_before_fork): Ditto. (dtable::fixup_before_exec): Ditto. (dtable::set_file_pointers_for_exec): Ditto. (dtable::vfork_child_dup): Ditto. (dtable::vfork_parent_restore): Ditto. * syscalls.cc (close_all_files): Ditto. * sync.h (muto::acquired): Declare new function. (new_muto1): Declare new macro used to specify name of muto storage. * sync.cc (muto::acquired): Define new function. * cygthread.cc (cygthread::stub): Remove signal chain removal call since it is handled during initialization now. * cygthread.cc (cygthread::simplestub): Remove signal chain removal call since it is handled during initialization now. * cygtls.cc (sentry): New class used for locking. Use throughout. (_threadinfo::reset_exception): Don't pop stack. (_threadinfo::find_tls): Move from exceptions.cc. (_threadinfo::init_thread): Initialize array of threads rather than linked list. Take second argument indicating thread function for this thread. (_threadinfo::remove): Search thread array rather than linked list. Use sentry to lock. Only unlock if we got the lock. (_threadinfo::find_tls): Ditto for first two. (handle_threadlist_exception): Handle exceptions when manipulating the thread list in case of premature thread termination. (_threadinfo::init_threadlist_exceptions): Ditto. * cygtls.h (TLS_STACK_SIZE): Decrease size. (_threadinfo::padding): Add element to avoid overwriting lower part of stack. (_threadinfo::remove): Add a "wait" argument to control how long we wait for a lock before removing. * exceptions.cc (init_exception_handler): Make global. Take argument to control exception handler being set. (ctrl_c_handler): Wait forever when removing self from signal chain. (_threadinfo::find_tls): Move to cygtls.cc. (sig_handle): Reorganize detection for thread-specific signals. * heap.cc (heap_init): Rework slightly. Make fatal error more verbose. Remove malloc initialization since it can't happen during dll attach. * init.cc (search_for): Move address to search for on stack here. (threadfunc_ix): Ditto for stack offset. Make shared so that stack walk potentially only has to be done once when cygwin processes are running. (threadfunc_fe): Use standard tls to store thread function (may change back later). (calibration_thread): New function. Potentially called to find threadfunc_ix. (munge_threadfunc): Search for "search_for" value on stack. Output warning when thread func not found on stack. Use standard tls to store thread function. (prime_threads): New function. Called to prime thread front end. (dll_entry): Call dll_crt0_0 here when DLL_PROCESS_ATTACH. Call prime_threads here. Try to remove thread from signal list here. * sigproc.cc (wait_sig): Initialize threadlist exception stuff here. * thread.cc (pthread::exit): Pass argument to signal list remove function. * thread.h: Remove obsolete *ResourceLock defines. * tlsoffsets.h: Regenerate. * winsup.h (spf): Define temporary debug macro to be deleted later. * dcrt0.cc (dll_crt0_0): New function, called during DLL initialization. Mainly consists of code pulled from dll_crt0_1. (dll_crt0_1): See above. (_dll_crt0): Wait for initial calibration thread to complete, if appropriate. Move some stuff to dll_crt0_0. (initialize_main_tls): Accommodate argument change to _thread_info::init_thread. * fork.cc (fork_child): Ditto. (sync_with_child): Fix debug message. * external.cc (cygwin_internal): Remove special considerations for uninitialized dll since initialization happens during dll attach now. * dlfcn.cc (dlopen): Remove obsolete *ResourceLock calls. (dlclose): Ditto. * cygheap.h (init_cygheap::close_ctty): Declare new function. * cygheap.cc (init_cygheap::close_ctty): Define new function. * syscalls.cc (close_all_files): Use close_ctty. (setsid): Ditto. * cygthread.cc (cygthread::stub): Remove exception initialization. * cygthread.cc (cygthread::stub): Remove exception initialization. (cygthread::simplestub): Ditto. * thread.cc (pthread::thread_init_wrapper): Ditto. * cygtls.cc (_last_thread): Make static. (_threadinfo::call2): Initialize exception handler here. (_threadinfo::find_tls): Move here. * exceptions.cc (_threadinfo::find_tls): Move. * dcrt0.cc (__api_fatal): Add prefix info to message here rather than including it in every call to function. * winsup.h (api_fatal): Accommodate above change. * debug.cc (add_handle): Don't do anything if cygheap not around. (mark_closed): Ditto. * dll_init.cc (dll_list::detach): Fix debug output. * fork.cc (sync_with_child): Ditto. (vfork): Improve debug output. * heap.cc (heap_init): Ditto. * exceptions.cc (try_to_debug): Clarify message when debugger attaches.
* * exceptions.cc (set_signal_mask): Redefine to not pass by address. ReportChristopher Faylor2003-12-231-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | calculated mask in debugging output. * sigproc.h (set_signal_mask): Reflect above change in declaration. * path.cc (mount_item::build_win32): Take path apart before feeding it to fnmunge. Throughout, change use of _reent_winsup()-> to _my_tls.locals. instead. Throughout, remove obsolete MT_SAFE/_CYG_THREAD_FAILSAFE considerations. Througout, add cygtls.h include. * Makefile.in (DLL_OFILES): Add cygtls.o. Add some more objects to the -fomit-frame-pointer list. * acconfig.h: Remove obsolete settings. * config.h.in: Ditto. * bsdlib.cc: Add cygtls.h include. * configure.in: Remove --enable-extra-threadsafe-checking. * configure: Regenerate. * cygtls.h (_local_storage): New struct renamed from _winsup_t (sic). (_threadinfo:local_clib): Add new field. (_threadinfo::locals): Ditto. (_threadinfo::init_thread): Accept second _reent * argument. (_threadinfo::call): Define as regparm. (CYGTLS_PADSIZE): Remove unnecessary slop. (_getreent): Define as a macro. * thread.h: Remove _CYG_THREAD_FAILSAFE and MT_SAFE stuff. (_winsup_t): Move to cygtls.h. (ResourceLocks::ResourceLocks): Eliminate empty constructor. (MTinterface::reents): Eliminate. (MTinterface::thread_self_key): Eliminate. (MTinterface::MTinterface): Eliminate. * dcrt0.cc: Include stdio.h for _impure_ptr initialization. (do_global_ctors): Remove run_ctors_p (sic) considerations. Don't call atexit here. (__main): Initialize destructors for user here. (dll_crt0_1): Accept a dummy argument. Don't call init_thread here. Don't set _impure_ptr here. Call do_global_ctors after more things have been initialized. (_dll_crt0): Define zeros buffer as max of needed size of CYGTLS_PADSIZE so that it can be used for two purposes while minimizing stack usage. Initialize _impure_ptr specifically, for speed. Call dll_crt0_1 with buffer argument. (cygwin_dll_init): Call dll_crt0_1 with dummy argument. * dtable.cc (dtable::find_unused_handle): Remove call to AssertResourceOwner. * exceptions.cc: Move _threadinfo stuff to new file. * cygtls.cc: New file. * gentls_offsets: Accommodate increasing complexity of cygtls.h. * hires.h (hires_base::~hires_base): Remove. * init.cc (dll_entry): Remove setting of reents. * thread.cc: Remove syslog.h include. (__getreent): Simplify to use _my_tls. (_reent_winsup): Delete. (AssertResourceOwner): Delete. (MTinterface::Init): Remove setting of _clib and _winsup, with all that entails. (MTinterface::fixup_after_fork): Ditto. (pthread::thread_init_wrapper): Ditto. Also remove call to set_tls_self_pointer. (pthread::set_tls_self_pointer): Eliminate. (pthread::get_tls_self_pointer): Just return _my_tls.tid; (__reent_t::init_clib): Eliminate. * tlsoffsets.h: Regenerate.
* 2003-11-11 Robert Collins <rbtcollins@hotmail.com>Robert Collins2003-11-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ron Parker <rdparker@butlermfg.com> * bsdlib.cc: Update throughout to use CYG_MAX_PATH rather than MAX_PATH. * cygheap.h: Ditto. * dcrt0.cc: Ditto. * delqueue.cc: Ditto. * dlfcn.cc: Ditto. * dll_init.cc: Ditto. * dll_init.h: Ditto. * dtable.cc: Ditto. * environ.cc: Ditto. * environ.h: Ditto. * exceptions.cc: Ditto. * external.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_proc.cc: Ditto. * fhandler_process.cc: Ditto. * fhandler_raw.cc: Ditto. * fhandler_registry.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_virtual.cc: Ditto. * miscfuncs.cc: Ditto. * mmap.cc: Ditto. * netdb.cc: Ditto. * path.cc: Ditto. * path.h: Ditto. * pinfo.cc: Ditto. * pinfo.h: Ditto. * pthread.cc: Ditto. * registry.cc: Ditto. * shared.cc: Ditto. * shared_info.h: Ditto. * smallprint.c: Ditto. * spawn.cc: Ditto. * strace.cc: Ditto. * syscalls.cc: Ditto. * thread.h: Ditto. * uinfo.cc: Ditto. * winsup.h: Ditto. * include/limits.h: Ditto. * include/cygwin/config.h: Ditto. * include/sys/param.h: Ditto.
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