mirror of
git://sourceware.org/git/newlib-cygwin.git
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89d3c72d51
(class child_info_fork): Remove stacksize, add stackaddr and guardsize members. * dcrt0.cc (child_info_fork::alloc_stack_hard_way): Partial rewrite to regenerate the stack exactly as in the parent. (child_info_fork::alloc_stack): Set stackaddr to 0, rather than stacksize. (dll_crt0_1): Check for stackaddr before changing the stack addresses in the TEB. * fork.cc (frok::child): Check for stackaddr here. (frok::parent): Set ch.stackaddr and ch.guardsize if not called from the main thread. * init.cc (dll_entry): Replace pointer to NT_TIB with pointer to TEB. Fix incorrectly changed address test before removing _my_tls. Set StackLimit to NULL on Windows 2000. Explain why. * miscfuncs.cc (struct thread_wrapper_arg): Store stackbase rather than stacksize, store commitaddr, remove guardsize. Store all pointers as char * for easier address arithmetic. (thread_wrapper): Rewrite to remove OS stack before calling thread function. Add lots of comments to explain what we do. (CygwinCreateThread): Reserve our own stack in case we got no application stack. Add comments. * ntdll.h (struct _TEB): Extend defintion up to DeallocationStack member. * thread.cc (pthread_attr::pthread_attr): Use "(size_t) -1" rather then 0xffffffff. * wincap.h (wincaps::has_stack_size_param_is_a_reservation): New element. * wincap.cc: Implement above element throughout.
102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
/* wincap.h: Header for OS capability class.
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Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
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2009, 2010, 2011 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 max_sys_priv;
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unsigned is_server : 1;
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unsigned has_physical_mem_access : 1;
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unsigned has_create_global_privilege : 1;
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unsigned has_ioctl_storage_get_media_types_ex : 1;
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unsigned has_disk_ex_ioctls : 1;
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unsigned has_buggy_restart_scan : 1;
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unsigned has_mandatory_integrity_control : 1;
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unsigned needs_logon_sid_in_sid_list : 1;
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unsigned needs_count_in_si_lpres2 : 1;
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unsigned has_recycle_dot_bin : 1;
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unsigned has_gaa_prefixes : 1;
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unsigned has_gaa_on_link_prefix : 1;
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unsigned supports_all_posix_ai_flags : 1;
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unsigned has_restricted_stack_args : 1;
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unsigned has_transactions : 1;
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unsigned has_recvmsg : 1;
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unsigned has_sendmsg : 1;
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unsigned has_broken_udf : 1;
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unsigned has_console_handle_problem : 1;
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unsigned has_broken_alloc_console : 1;
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unsigned has_always_all_codepages : 1;
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unsigned has_localenames : 1;
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unsigned has_buggy_thread_startup : 1;
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unsigned has_fast_cwd : 1;
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unsigned has_restricted_raw_disk_access : 1;
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unsigned use_dont_resolve_hack : 1;
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unsigned has_stack_size_param_is_a_reservation : 1;
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};
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class wincapc
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{
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SYSTEM_INFO system_info;
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OSVERSIONINFOEX version;
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char osnam[40];
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ULONG wow64;
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void *caps;
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public:
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void init ();
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const DWORD cpu_count () const { return system_info.dwNumberOfProcessors; }
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const DWORD page_size () const { return system_info.dwPageSize; }
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const DWORD allocation_granularity () const
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{ return system_info.dwAllocationGranularity; }
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const char *osname () const { return osnam; }
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const bool is_wow64 () const { return wow64; }
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#define IMPLEMENT(cap) cap() const { return ((wincaps *) this->caps)->cap; }
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DWORD IMPLEMENT (max_sys_priv)
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bool IMPLEMENT (is_server)
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bool IMPLEMENT (has_physical_mem_access)
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bool IMPLEMENT (has_create_global_privilege)
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bool IMPLEMENT (has_ioctl_storage_get_media_types_ex)
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bool IMPLEMENT (has_disk_ex_ioctls)
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bool IMPLEMENT (has_buggy_restart_scan)
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bool IMPLEMENT (has_mandatory_integrity_control)
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bool IMPLEMENT (needs_logon_sid_in_sid_list)
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bool IMPLEMENT (needs_count_in_si_lpres2)
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bool IMPLEMENT (has_recycle_dot_bin)
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bool IMPLEMENT (has_gaa_prefixes)
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bool IMPLEMENT (has_gaa_on_link_prefix)
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bool IMPLEMENT (supports_all_posix_ai_flags)
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bool IMPLEMENT (has_restricted_stack_args)
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bool IMPLEMENT (has_transactions)
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bool IMPLEMENT (has_recvmsg)
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bool IMPLEMENT (has_sendmsg)
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bool IMPLEMENT (has_broken_udf)
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bool IMPLEMENT (has_console_handle_problem)
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bool IMPLEMENT (has_broken_alloc_console)
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bool IMPLEMENT (has_always_all_codepages)
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bool IMPLEMENT (has_localenames)
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bool IMPLEMENT (has_buggy_thread_startup)
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bool IMPLEMENT (has_fast_cwd)
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bool IMPLEMENT (has_restricted_raw_disk_access)
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bool IMPLEMENT (use_dont_resolve_hack)
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bool IMPLEMENT (has_stack_size_param_is_a_reservation)
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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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