f90e23f271
* cygheap.cc (_csbrk): Call getpagesize instead of getshmlba. * dcrt0.cc (dll_crt0_0): Call mmap_init. * external.cc (cygwin_internal): Call getpagesize instead of getshmlba. * fhandler.h (fhandler_base::mmap): Change access to prot parameter. (fhandler_base::fixup_mmap_after_fork): Ditto. (fhandler_disk_file::mmap): Ditto. (fhandler_disk_file::fixup_mmap_after_fork): Ditto. (fhandler_dev_mem::mmap): Ditto. (fhandler_dev_mem::fixup_mmap_after_fork): Ditto. * fhandler_mem.cc (fhandler_dev_mem::write): Call getsystempagesize instead of getpagesize. (fhandler_dev_mem::read): Ditto. (fhandler_dev_mem::fstat): Ditto. (fhandler_dev_mem::mmap): Move to mmap.cc. (fhandler_dev_mem::munmap): Ditto. (fhandler_dev_mem::msync): Ditto. (fhandler_dev_mem::fixup_mmap_after_fork): Ditto. * fhandler_proc.cc (format_proc_meminfo): Call getsystempagesize instead of getpagesize. * fhandler_process.cc (format_process_stat): Ditto. (format_process_status): Ditto. (get_mem_values): Ditto. * mmap.cc: Fix formatting. Try to make more readable and modular. Take advantage of pagesize==granularity. (gen_protect): New static function to evaluate Windows protection bits from POSIX protection and flags. (gen_access): Ditto for Windows access mode. (VirtualProt9x): Wrapper function to call VirtualProtect on 9x. (VirtualProtNT): Ditto for NT. (VirtualProtEx9x): Ditto for VirtualProtectEx on 9x. (VirtualProtExNT): Ditto for NT. (CreateMapping9x): Wrapper function for creating a mapping handle on 9x. (CreateMappingNT): Ditto for NT. (MapView9x): Wrapper function to map a view on 9x. (MapViewNT): Ditto for NT. (mmap_funcs_9x): Structure containing function pointers to wrapper functions for 9x. (mmap_funcs_nt): Ditto for NT. (mmap_func): Pointer to wrapper functions used in subsequent code. (mmap_init): Initialize mmap_func depending on OS. (class mmap_record): Use sensible member names. Add POSIX protection member. Drop Windows access flags member. Constify more methods. Use accessors instead of direct member access inside of own methods. (mmap_record::gen_protect): Class wrapper to evaluate matching Windows protection bits. (mmap_record::gen_access): Ditto for Windows access flags. (mmap_record::compatible_flags): New function to check if flags are compatible with flags of existing map. (list::add_record): Drop offset and length arguments. (class map): Change counters to unsigned. Match usage throughout. (mmapped_areas): Convert from pointer to global struct. (mmap_record::alloc_page_map): Simplify. (mmap_record::map_pages): Ditto. (mmap_record::fixup_page_map): Delete. (mmap64): Simplify. Add workaround for Windows 98 bug. Fix bug on NT that existing anonymous mappings weren't searched for a match. (munmap): Add workaround for Windows 98 bug. (msync): Simplify. (mprotect): Handle existing maps correctly. (mlock): Add local pagesize variable and enlightening comment. (fhandler_disk_file::mmap): Main functionality now in CreateMapping/ MapView wrapper functions. (fhandler_disk_file::fixup_mmap_after_fork): Call MapView wrapper. (fhandler_dev_mem::mmap): Moved from fhandler_mem.cc. Simplify by calling MapViewNT. (fhandler_dev_mem::munmap): Moved from fhandler_mem.cc. (fhandler_dev_mem::msync): Ditto. (fhandler_dev_mem::fixup_mmap_after_fork): Ditto. Call MapViewNT. (fixup_mmaps_after_fork): Restructure and hopefully speed up loop for setting protection and memory content on MAP_PRIVATE maps. * ntdll.h (AT_ROUND_TO_PAGE): Remove define. (AT_EXTENDABLE_FILE): Add define. (NtCreateSection): Add prototype. * syscalls.cc (getpagesize): Return granularity as pagesize now. (getsystempagesize): New function to retrieve "real" pagesize. (getshmlba): Delete since it's replaced by getpagesize now. * wincap.h (wincaps::has_mmap_alignment_bug): New element. * wincap.cc: Implement above element throughout. * winsup.h (getshmlba): Drop prototype. (getsystempagesize): Add prototype. (mmap_init): Ditto. * include/sys/mman.h: (Not yet) define MAP_NORESERVE.
142 lines
5.3 KiB
C++
142 lines
5.3 KiB
C++
/* wincap.h: Header for OS capability class.
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Copyright 2001, 2002, 2003, 2004, 2005 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _WINCAP_H
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#define _WINCAP_H
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struct wincaps
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{
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DWORD lock_file_highword;
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DWORD chunksize;
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int shared;
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unsigned is_winnt : 1;
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unsigned is_server : 1;
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unsigned access_denied_on_delete : 1;
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unsigned has_delete_on_close : 1;
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unsigned has_page_guard : 1;
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unsigned has_security : 1;
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unsigned has_security_descriptor_control : 1;
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unsigned has_get_process_times : 1;
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unsigned has_lseek_bug : 1;
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unsigned has_lock_file_ex : 1;
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unsigned has_signal_object_and_wait : 1;
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unsigned has_eventlog : 1;
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unsigned has_ip_helper_lib : 1;
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unsigned has_set_handle_information : 1;
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unsigned has_set_handle_information_on_console_handles: 1;
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unsigned supports_smp : 1;
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unsigned map_view_of_file_ex_sucks : 1;
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unsigned altgr_is_ctrl_alt : 1;
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unsigned has_physical_mem_access : 1;
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unsigned has_working_copy_on_write : 1;
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unsigned share_mmaps_only_by_name : 1;
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unsigned virtual_protect_works_on_shared_pages : 1;
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unsigned has_mmap_alignment_bug : 1;
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unsigned has_hard_links : 1;
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unsigned can_open_directories : 1;
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unsigned has_move_file_ex : 1;
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unsigned has_negative_pids : 1;
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unsigned has_unreliable_pipes : 1;
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unsigned has_named_pipes : 1;
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unsigned has_try_enter_critical_section : 1;
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unsigned has_raw_devices : 1;
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unsigned has_valid_processorlevel : 1;
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unsigned has_64bit_file_access : 1;
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unsigned has_process_io_counters : 1;
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unsigned supports_reading_modem_output_lines : 1;
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unsigned needs_memory_protection : 1;
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unsigned pty_needs_alloc_console : 1;
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unsigned has_terminal_services : 1;
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unsigned has_switch_to_thread : 1;
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unsigned cant_debug_dll_entry : 1;
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unsigned has_ioctl_storage_get_media_types_ex : 1;
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unsigned start_proc_suspended : 1;
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unsigned has_extended_priority_class : 1;
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unsigned has_guid_volumes : 1;
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unsigned detect_win16_exe : 1;
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unsigned has_null_console_handler_routine : 1;
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unsigned has_disk_ex_ioctls : 1;
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unsigned has_working_virtual_lock : 1;
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};
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class wincapc
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{
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OSVERSIONINFOEX version;
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char osnam[40];
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void *caps;
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public:
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void init ();
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void set_chunksize (DWORD nchunksize);
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const char *osname () const { return osnam; }
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#define IMPLEMENT(cap) cap() const { return ((wincaps *) this->caps)->cap; }
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DWORD IMPLEMENT (lock_file_highword)
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DWORD IMPLEMENT (chunksize)
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int IMPLEMENT (shared)
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bool IMPLEMENT (is_winnt)
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bool IMPLEMENT (is_server)
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bool IMPLEMENT (access_denied_on_delete)
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bool IMPLEMENT (has_delete_on_close)
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bool IMPLEMENT (has_page_guard)
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bool IMPLEMENT (has_security)
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bool IMPLEMENT (has_security_descriptor_control)
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bool IMPLEMENT (has_get_process_times)
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bool IMPLEMENT (has_lseek_bug)
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bool IMPLEMENT (has_lock_file_ex)
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bool IMPLEMENT (has_signal_object_and_wait)
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bool IMPLEMENT (has_eventlog)
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bool IMPLEMENT (has_ip_helper_lib)
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bool IMPLEMENT (has_set_handle_information)
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bool IMPLEMENT (has_set_handle_information_on_console_handles)
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bool IMPLEMENT (supports_smp)
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bool IMPLEMENT (map_view_of_file_ex_sucks)
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bool IMPLEMENT (altgr_is_ctrl_alt)
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bool IMPLEMENT (has_physical_mem_access)
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bool IMPLEMENT (has_working_copy_on_write)
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bool IMPLEMENT (share_mmaps_only_by_name)
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bool IMPLEMENT (virtual_protect_works_on_shared_pages)
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bool IMPLEMENT (has_mmap_alignment_bug)
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bool IMPLEMENT (has_hard_links)
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bool IMPLEMENT (can_open_directories)
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bool IMPLEMENT (has_move_file_ex)
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bool IMPLEMENT (has_negative_pids)
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bool IMPLEMENT (has_unreliable_pipes)
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bool IMPLEMENT (has_named_pipes)
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bool IMPLEMENT (has_try_enter_critical_section)
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bool IMPLEMENT (has_raw_devices)
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bool IMPLEMENT (has_valid_processorlevel)
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bool IMPLEMENT (has_64bit_file_access)
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bool IMPLEMENT (has_process_io_counters)
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bool IMPLEMENT (supports_reading_modem_output_lines)
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bool IMPLEMENT (needs_memory_protection)
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bool IMPLEMENT (pty_needs_alloc_console)
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bool IMPLEMENT (has_terminal_services)
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bool IMPLEMENT (has_switch_to_thread)
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bool IMPLEMENT (cant_debug_dll_entry)
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bool IMPLEMENT (has_ioctl_storage_get_media_types_ex)
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bool IMPLEMENT (start_proc_suspended)
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bool IMPLEMENT (has_extended_priority_class)
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bool IMPLEMENT (has_guid_volumes)
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bool IMPLEMENT (detect_win16_exe)
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bool IMPLEMENT (has_null_console_handler_routine)
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bool IMPLEMENT (has_disk_ex_ioctls)
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bool IMPLEMENT (has_working_virtual_lock)
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#undef IMPLEMENT
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};
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extern wincapc wincap;
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#endif /* _WINCAP_H */
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