mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-16 19:40:07 +08:00
e753e4129a
* dcrt0.cc: Semi-revert commit 12743c2d5d2721f3a80b4d7671a349be03c1f520.
(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>
342 lines
10 KiB
C++
342 lines
10 KiB
C++
/* wincap.cc -- figure out on which OS we're running. Set the
|
|
capability class to the appropriate values.
|
|
|
|
Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
|
|
2012, 2013, 2014, 2015 Red Hat, Inc.
|
|
|
|
This file is part of Cygwin.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
#include "winsup.h"
|
|
#include "security.h"
|
|
#include "ntdll.h"
|
|
|
|
/* CV, 2008-10-23: All wincapc's have to be in the .cygwin_dll_common section,
|
|
same as wincap itself. Otherwise the capability changes made in
|
|
wincapc::init() are not propagated to any subsequently started process
|
|
in the same session. I'm only writing this longish comment because I'm
|
|
puzzled that this has never been noticed before... */
|
|
|
|
wincaps wincap_xpsp2 __attribute__((section (".cygwin_dll_common"), shared)) = {
|
|
def_guard_pages:1,
|
|
max_sys_priv:SE_CREATE_GLOBAL_PRIVILEGE,
|
|
is_server:false,
|
|
has_mandatory_integrity_control:false,
|
|
needs_count_in_si_lpres2:false,
|
|
has_recycle_dot_bin:false,
|
|
has_gaa_on_link_prefix:false,
|
|
has_gaa_largeaddress_bug:false,
|
|
supports_all_posix_ai_flags:false,
|
|
has_restricted_stack_args:false,
|
|
has_transactions:false,
|
|
has_sendmsg:false,
|
|
has_broken_udf:true,
|
|
has_broken_alloc_console:false,
|
|
has_always_all_codepages:false,
|
|
has_localenames:false,
|
|
has_fast_cwd:false,
|
|
has_restricted_raw_disk_access:false,
|
|
use_dont_resolve_hack:true,
|
|
has_console_logon_sid:false,
|
|
wow64_has_secondary_stack:false,
|
|
has_program_compatibility_assistant:false,
|
|
has_pipe_reject_remote_clients:false,
|
|
terminate_thread_frees_stack:false,
|
|
has_precise_system_time:false,
|
|
has_microsoft_accounts:false,
|
|
has_set_thread_stack_guarantee:false,
|
|
has_broken_rtl_query_process_debug_information:false,
|
|
has_processor_groups:false,
|
|
has_broken_prefetchvm:false,
|
|
has_new_pebteb_region:false,
|
|
};
|
|
|
|
wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
|
|
def_guard_pages:1,
|
|
max_sys_priv:SE_CREATE_GLOBAL_PRIVILEGE,
|
|
is_server:false,
|
|
has_mandatory_integrity_control:false,
|
|
needs_count_in_si_lpres2:false,
|
|
has_recycle_dot_bin:false,
|
|
has_gaa_on_link_prefix:false,
|
|
has_gaa_largeaddress_bug:false,
|
|
supports_all_posix_ai_flags:false,
|
|
has_restricted_stack_args:true,
|
|
has_transactions:false,
|
|
has_sendmsg:false,
|
|
has_broken_udf:true,
|
|
has_broken_alloc_console:false,
|
|
has_always_all_codepages:false,
|
|
has_localenames:false,
|
|
has_fast_cwd:false,
|
|
has_restricted_raw_disk_access:false,
|
|
use_dont_resolve_hack:true,
|
|
has_console_logon_sid:false,
|
|
wow64_has_secondary_stack:true,
|
|
has_program_compatibility_assistant:false,
|
|
has_pipe_reject_remote_clients:false,
|
|
terminate_thread_frees_stack:false,
|
|
has_precise_system_time:false,
|
|
has_microsoft_accounts:false,
|
|
has_set_thread_stack_guarantee:true,
|
|
has_broken_rtl_query_process_debug_information:true,
|
|
has_processor_groups:false,
|
|
has_broken_prefetchvm:false,
|
|
has_new_pebteb_region:false,
|
|
};
|
|
|
|
wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
|
|
def_guard_pages:1,
|
|
max_sys_priv:SE_CREATE_SYMBOLIC_LINK_PRIVILEGE,
|
|
is_server:false,
|
|
has_mandatory_integrity_control:true,
|
|
needs_count_in_si_lpres2:true,
|
|
has_recycle_dot_bin:true,
|
|
has_gaa_on_link_prefix:true,
|
|
has_gaa_largeaddress_bug:true,
|
|
supports_all_posix_ai_flags:true,
|
|
has_restricted_stack_args:false,
|
|
has_transactions:true,
|
|
has_sendmsg:true,
|
|
has_broken_udf:false,
|
|
has_broken_alloc_console:false,
|
|
has_always_all_codepages:true,
|
|
has_localenames:true,
|
|
has_fast_cwd:true,
|
|
has_restricted_raw_disk_access:true,
|
|
use_dont_resolve_hack:false,
|
|
has_console_logon_sid:false,
|
|
wow64_has_secondary_stack:false,
|
|
has_program_compatibility_assistant:true,
|
|
has_pipe_reject_remote_clients:true,
|
|
terminate_thread_frees_stack:true,
|
|
has_precise_system_time:false,
|
|
has_microsoft_accounts:false,
|
|
has_set_thread_stack_guarantee:true,
|
|
has_broken_rtl_query_process_debug_information:false,
|
|
has_processor_groups:false,
|
|
has_broken_prefetchvm:false,
|
|
has_new_pebteb_region:false,
|
|
};
|
|
|
|
wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
|
|
def_guard_pages:1,
|
|
max_sys_priv:SE_CREATE_SYMBOLIC_LINK_PRIVILEGE,
|
|
is_server:false,
|
|
has_mandatory_integrity_control:true,
|
|
needs_count_in_si_lpres2:false,
|
|
has_recycle_dot_bin:true,
|
|
has_gaa_on_link_prefix:true,
|
|
has_gaa_largeaddress_bug:true,
|
|
supports_all_posix_ai_flags:true,
|
|
has_restricted_stack_args:false,
|
|
has_transactions:true,
|
|
has_sendmsg:true,
|
|
has_broken_udf:false,
|
|
has_broken_alloc_console:true,
|
|
has_always_all_codepages:true,
|
|
has_localenames:true,
|
|
has_fast_cwd:true,
|
|
has_restricted_raw_disk_access:true,
|
|
use_dont_resolve_hack:false,
|
|
has_console_logon_sid:true,
|
|
wow64_has_secondary_stack:false,
|
|
has_program_compatibility_assistant:true,
|
|
has_pipe_reject_remote_clients:true,
|
|
terminate_thread_frees_stack:true,
|
|
has_precise_system_time:false,
|
|
has_microsoft_accounts:false,
|
|
has_set_thread_stack_guarantee:true,
|
|
has_broken_rtl_query_process_debug_information:false,
|
|
has_processor_groups:true,
|
|
has_broken_prefetchvm:false,
|
|
has_new_pebteb_region:false,
|
|
};
|
|
|
|
wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
|
|
def_guard_pages:2,
|
|
max_sys_priv:SE_CREATE_SYMBOLIC_LINK_PRIVILEGE,
|
|
is_server:false,
|
|
has_mandatory_integrity_control:true,
|
|
needs_count_in_si_lpres2:false,
|
|
has_recycle_dot_bin:true,
|
|
has_gaa_on_link_prefix:true,
|
|
has_gaa_largeaddress_bug:false,
|
|
supports_all_posix_ai_flags:true,
|
|
has_restricted_stack_args:false,
|
|
has_transactions:true,
|
|
has_sendmsg:true,
|
|
has_broken_udf:false,
|
|
has_broken_alloc_console:true,
|
|
has_always_all_codepages:true,
|
|
has_localenames:true,
|
|
has_fast_cwd:true,
|
|
has_restricted_raw_disk_access:true,
|
|
use_dont_resolve_hack:false,
|
|
has_console_logon_sid:true,
|
|
wow64_has_secondary_stack:false,
|
|
has_program_compatibility_assistant:true,
|
|
has_pipe_reject_remote_clients:true,
|
|
terminate_thread_frees_stack:true,
|
|
has_precise_system_time:true,
|
|
has_microsoft_accounts:true,
|
|
has_set_thread_stack_guarantee:true,
|
|
has_broken_rtl_query_process_debug_information:false,
|
|
has_processor_groups:true,
|
|
has_broken_prefetchvm:false,
|
|
has_new_pebteb_region:false,
|
|
};
|
|
|
|
wincaps wincap_10 __attribute__((section (".cygwin_dll_common"), shared)) = {
|
|
def_guard_pages:2,
|
|
max_sys_priv:SE_CREATE_SYMBOLIC_LINK_PRIVILEGE,
|
|
is_server:false,
|
|
has_mandatory_integrity_control:true,
|
|
needs_count_in_si_lpres2:false,
|
|
has_recycle_dot_bin:true,
|
|
has_gaa_on_link_prefix:true,
|
|
has_gaa_largeaddress_bug:false,
|
|
supports_all_posix_ai_flags:true,
|
|
has_restricted_stack_args:false,
|
|
has_transactions:true,
|
|
has_sendmsg:true,
|
|
has_broken_udf:false,
|
|
has_broken_alloc_console:true,
|
|
has_always_all_codepages:true,
|
|
has_localenames:true,
|
|
has_fast_cwd:true,
|
|
has_restricted_raw_disk_access:true,
|
|
use_dont_resolve_hack:false,
|
|
has_console_logon_sid:true,
|
|
wow64_has_secondary_stack:false,
|
|
has_program_compatibility_assistant:true,
|
|
has_pipe_reject_remote_clients:true,
|
|
terminate_thread_frees_stack:true,
|
|
has_precise_system_time:true,
|
|
has_microsoft_accounts:true,
|
|
has_set_thread_stack_guarantee:true,
|
|
has_broken_rtl_query_process_debug_information:false,
|
|
has_processor_groups:true,
|
|
has_broken_prefetchvm:true,
|
|
has_new_pebteb_region:false,
|
|
};
|
|
|
|
wincaps wincap_10_1511 __attribute__((section (".cygwin_dll_common"), shared)) = {
|
|
def_guard_pages:2,
|
|
max_sys_priv:SE_CREATE_SYMBOLIC_LINK_PRIVILEGE,
|
|
is_server:false,
|
|
has_mandatory_integrity_control:true,
|
|
needs_count_in_si_lpres2:false,
|
|
has_recycle_dot_bin:true,
|
|
has_gaa_on_link_prefix:true,
|
|
has_gaa_largeaddress_bug:false,
|
|
supports_all_posix_ai_flags:true,
|
|
has_restricted_stack_args:false,
|
|
has_transactions:true,
|
|
has_sendmsg:true,
|
|
has_broken_udf:false,
|
|
has_broken_alloc_console:true,
|
|
has_always_all_codepages:true,
|
|
has_localenames:true,
|
|
has_fast_cwd:true,
|
|
has_restricted_raw_disk_access:true,
|
|
use_dont_resolve_hack:false,
|
|
has_console_logon_sid:true,
|
|
wow64_has_secondary_stack:false,
|
|
has_program_compatibility_assistant:true,
|
|
has_pipe_reject_remote_clients:true,
|
|
terminate_thread_frees_stack:true,
|
|
has_precise_system_time:true,
|
|
has_microsoft_accounts:true,
|
|
has_set_thread_stack_guarantee:true,
|
|
has_broken_rtl_query_process_debug_information:false,
|
|
has_processor_groups:true,
|
|
has_broken_prefetchvm:false,
|
|
has_new_pebteb_region:true,
|
|
};
|
|
|
|
wincapc wincap __attribute__((section (".cygwin_dll_common"), shared));
|
|
|
|
void
|
|
wincapc::init ()
|
|
{
|
|
if (caps)
|
|
return; // already initialized
|
|
|
|
GetSystemInfo (&system_info);
|
|
version.dwOSVersionInfoSize = sizeof (RTL_OSVERSIONINFOEXW);
|
|
RtlGetVersion (&version);
|
|
|
|
switch (version.dwMajorVersion)
|
|
{
|
|
case 5:
|
|
switch (version.dwMinorVersion)
|
|
{
|
|
case 1:
|
|
caps = &wincap_xpsp2;
|
|
break;
|
|
|
|
default:
|
|
caps = &wincap_2003;
|
|
}
|
|
break;
|
|
case 6:
|
|
switch (version.dwMinorVersion)
|
|
{
|
|
case 0:
|
|
caps = &wincap_vista;
|
|
break;
|
|
case 1:
|
|
caps = &wincap_7;
|
|
break;
|
|
case 2:
|
|
case 3:
|
|
caps = &wincap_8;
|
|
break;
|
|
default:
|
|
caps = &wincap_10;
|
|
break;
|
|
}
|
|
break;
|
|
case 10:
|
|
default:
|
|
if (version.dwBuildNumber >= 10586)
|
|
caps = &wincap_10_1511;
|
|
else
|
|
caps = &wincap_10;
|
|
break;
|
|
}
|
|
|
|
((wincaps *)caps)->is_server = (version.wProductType != VER_NT_WORKSTATION);
|
|
#ifdef __x86_64__
|
|
wow64 = 0;
|
|
/* 64 bit systems have one more guard page than their 32 bit counterpart. */
|
|
++((wincaps *)caps)->def_guard_pages;
|
|
#else
|
|
/* RtlQueryProcessDebugInformation/CreateToolhelp32Snapshot both crash the
|
|
target process on 64 bit XP/2003 in native 64 bit mode only. Reset the
|
|
flag here for 32 bit. */
|
|
((wincaps *)caps)->has_broken_rtl_query_process_debug_information = false;
|
|
/* Windows 10 1511 has a stack move when a 64 bit process is started from
|
|
a 32 bit process, just as it was vice versa in XP/2003. Reset the flag
|
|
here for 32 bit. */
|
|
if (NT_SUCCESS (NtQueryInformationProcess (NtCurrentProcess (),
|
|
ProcessWow64Information,
|
|
&wow64, sizeof wow64, NULL))
|
|
&& !wow64)
|
|
#endif
|
|
{
|
|
((wincaps *)caps)->needs_count_in_si_lpres2 = false;
|
|
((wincaps *)caps)->has_restricted_stack_args = false;
|
|
((wincaps *)caps)->wow64_has_secondary_stack = false;
|
|
((wincaps *)caps)->has_gaa_largeaddress_bug = false;
|
|
((wincaps *)caps)->has_broken_prefetchvm = false;
|
|
}
|
|
|
|
__small_sprintf (osnam, "NT-%d.%d", version.dwMajorVersion,
|
|
version.dwMinorVersion);
|
|
}
|