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2021-01-18cxx.cc: Fix dynamic initialization for static local variablesBen Wijen1-10/+0
The old implementation for __cxa_guard_acquire did not return 1, therefore dynamic initialization was never performed. If concurrent-safe dynamic initialisation is ever needed, CXX ABI must be followed when re-implementing __cxa_guard_acquire (et al.)
2016-06-23Switching the Cygwin DLL to LGPLv3+, dropping commercial buyout optioncygwin-2_5_2-releaseCorinna Vinschen1-2/+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>
2016-03-23cxx.cc: Disable C++14 warning for new sized delete operatorCorinna Vinschen1-0/+4
As long as we're not building in C++14 mode, the definition of the sized delete operator results in a compatibility warning. * cxx.cc (operator delete): Disable C++14 warning for sized variant. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2016-03-23Add c++14 sized deallocation operatorPeter Foley1-0/+5
When compiling with -std=c++14 (the default for gcc 6.0+), the sized deallocation operator must be defined to prevent undefined symbols when linking. winsup/cygwin/ChangeLog: cxx.cc (operator delete(void *p, size_t)): Define. Signed-off-by: Peter Foley <pefoley2@pefoley.com>
2009-08-13 * cxx.cc (default_cygwin_cxx_malloc): Enhance commenting.Corinna Vinschen1-1/+4
* 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.
2009-08-04* fhandler.h (fhandler_cygdrive:DRVSZ): New enum.Christopher Faylor1-1/+1
(pdrive_buf): New place to hold information about cygdrive. * fhandler_disk_file.cc (fhandler_cygdrive::set_drives): Store drive info in pdrive_buf since get_win32_name() could now be too small to hold everything. (fhandler_cygdrive::rewinddir): Reset pdrive to pdrive_buf. (fhandler_cygdrive::closedir): Ditto. * pipe.cc (fhandler_pipe::init): Be more defensive when referencing get_win32_name(). Rework logic which made a copy of the POSIX path and then never used it.
2009-07-07winsup/ChangeLog:Dave Korn1-2/+52
* Makefile.common (COMPILE_CXX): Add support for per-file overrides to exclude $(nostdinc) and $(nostdincxx) from compiler flags. (COMPILE_CC): Likewise for $(nostdinc). winsup/cygwin/ChangeLog: * Makefile.in (DLL_OFILES): Add libstdcxx_wrapper.o (libstdcxx_wrapper_CFLAGS): Add flags for new module. (_cygwin_crt0_common_STDINCFLAGS): Define per-file override. (libstdcxx_wrapper_STDINCFLAGS, cxx_STDINCFLAGS): Likewise. * cxx.cc: Include "cygwin-cxx.h". (operator new): Tweak prototype for full standards compliance. (operator new[]): Likewise. (operator new (nothrow)): New fallback function. (operator new[] (nothrow), operator delete (nothrow), operator delete[] (nothrow)): Likewise. (default_cygwin_cxx_malloc): New struct of pointers to the above, for final last-resort fallback default. * cygwin-cxx.h: New file. (struct per_process_cxx_malloc): Define. (default_cygwin_cxx_malloc): Declare extern. * cygwin.din (__wrap__ZdaPv): Export new wrapper. (__wrap__ZdaPvRKSt9nothrow_t, __wrap__ZdlPv, __wrap__ZdlPvRKSt9nothrow_t, __wrap__Znaj, __wrap__ZnajRKSt9nothrow_t, __wrap__Znwj, __wrap__ZnwjRKSt9nothrow_t): Likewise. * globals.cc (__cygwin_user_data): Init newly-repurposed 'forkee' field (now 'cxx_malloc') to point to default_cygwin_cxx_malloc. * libstdcxx_wrapper.cc: New file. (__wrap__ZdaPv, __wrap__ZdaPvRKSt9nothrow_t, __wrap__ZdlPv, __wrap__ZdlPvRKSt9nothrow_t, __wrap__Znaj, __wrap__ZnajRKSt9nothrow_t, __wrap__Znwj, __wrap__ZnwjRKSt9nothrow_t): Define wrapper functions for libstdc++ malloc operators and their overrides. * winsup.h (default_cygwin_cxx_malloc): Declare extern. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * include/sys/cygwin.h (struct per_process_cxx_malloc): Forward declare here. (struct per_process::forkee): Rename and repurpose from this ... (struct per_process::cxx_malloc): ... to this. * lib/_cygwin_crt0_common.cc: Include cygwin-cxx.h. (WEAK): Define shorthand helper macro. (__cygwin_cxx_malloc): Define and populate with weak references to whatever libstdc++ malloc operators will be visible at final link time for Cygwin apps and dlls. (_cygwin_crt0_common): Always look up cygwin DLL's internal per_process data, and don't test for (impossible) failure. Inherit any members of __cygwin_cxx_malloc that we don't have overrides for from the DLL's default and store the resulting overall set of overrides back into the DLL's global per_process data.
2009-01-03Remove unneeded header files from source files throughout. Update copyrightsChristopher Faylor1-2/+1
where appropriate. * globals.cc: New file for generic global variables. * mkglobals_h: New file to generate globals.h. * mkstatic: New Script used to build a (currently non-working) static libcygwin_s.a. * Makefile.in: Add unused rule to build a non-working libcygwin_s.a. (DLL_OFILES): Add globals.o. Make all objects rely on globals.h. (globals.h): New target. Generate globals.h. * cygtls.h: Honor new CYGTLS_HANDLE define to control when the HANDLE operator is allowed in _cygtls. * dcrt0.cc: Move most globals to globals.cc. * init.cc: Ditto. * environ.cc (strip_title_path): Remove now-unneeded extern. * fhandler_serial.cc (fhandler_serial::open): Ditto. * pinfo.cc: Ditto. (commune_process): Ditto. * shared.cc: Ditto. * glob.cc: Ditto. * strace.cc: Ditto. * exceptions.cc: Define CYGTLS_HANDLE before including winsup.h. * path.cc (stat_suffixes): Move here. * security.h: Add forward class path_conv declaration. * smallprint.cc (__small_vsprintf): Make a true c++ function. (__small_sprintf): Ditto. (small_printf): Ditto. (console_printf): Ditto. (__small_vswprintf): Ditto. (__small_swprintf): Ditto. * spawn.cc (spawn_guts): Remove _stdcall decoration in favor of regparm. (hExeced): Move to globals.cc * strfuncs.cc (current_codepage): Ditto. (active_codepage): Ditto. * sync.cc (lock_process::locker): Move here from dcrt0.cc. * syscalls.cc (stat_suffixes): Move to path.cc. * tty.cc (tty::create_master): Uncapitalize fatal warning for consistency. * winsup.h: Include globals.h to declare most of the grab bag list of globals which were previously defined here. * mount.h: Move USER_* defines back to shared_info.h. * speclib: Force temporary directory cleanup.
2005-03-19* child_info.h (fork_info): Use different method to alias variable.Christopher Faylor1-0/+10
(spawn_info): Ditto. * cxx.cc (__cxa_guard_acquire): New function (needed for gcc 4.x). (__cxa_guard_release): Ditto. * devices.in: Make sure stuff is correctly bracketed (for gcc 4.x). * devices.cc: Regenerate. * fhandler.h (fhandler_disk_file::fchmod): Avoid left coercion (for gcc 4.x). * smallprint.c (__rn): Declare as __fastcall since gcc 4.x complains about use of regparm, for some reason. * sync.h (sync::init_lock): Remove. * sync.cc (sync::init_lock): Ditto.
2003-09-04* cxx.cc (new): Fix formatting. Just return result of ccalloc rather thanChristopher Faylor1-5/+2
calling memset explicitly.
2002-12-04 * cxx.cc: New file. Implement new, new[], delete and delete[]Corinna Vinschen1-0/+49
operators and __cxa_pure_virtual if compiled by gcc >=3. * Makefile.in (DLL_OFILES): Add cxx.o. Remove libstdc++.a from cygwin1.dll link step.