newlib/winsup/cygwin/wincap.cc

337 lines
10 KiB
C++

/* wincap.cc -- figure out on which OS we're running. Set the
capability class to the appropriate values.
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 "miscfuncs.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_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:1,
mmap_storage_high:0x070000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:true,
needs_query_information:true,
has_gaa_largeaddress_bug:true,
has_broken_alloc_console:false,
has_console_logon_sid:false,
has_precise_system_time:false,
has_microsoft_accounts:false,
has_processor_groups:false,
has_broken_prefetchvm:false,
has_new_pebteb_region:false,
has_broken_whoami:true,
has_unprivileged_createsymlink:false,
has_unbiased_interrupt_time:false,
has_precise_interrupt_time:false,
has_posix_unlink_semantics:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:true,
has_con_24bit_colors:false,
},
};
wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:1,
mmap_storage_high:0x070000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:true,
has_gaa_largeaddress_bug:true,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:false,
has_microsoft_accounts:false,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:false,
has_broken_whoami:true,
has_unprivileged_createsymlink:false,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:false,
has_posix_unlink_semantics:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:true,
has_con_24bit_colors:false,
},
};
wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
mmap_storage_high:0x070000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:true,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:false,
has_broken_whoami:false,
has_unprivileged_createsymlink:false,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:false,
has_posix_unlink_semantics:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
has_con_24bit_colors:false,
},
};
wincaps wincap_8_1 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
mmap_storage_high:0x700000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:false,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:false,
has_broken_whoami:false,
has_unprivileged_createsymlink:false,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:false,
has_posix_unlink_semantics:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
has_con_24bit_colors:false,
},
};
wincaps wincap_10_1507 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
mmap_storage_high:0x700000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:false,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:true,
has_new_pebteb_region:false,
has_broken_whoami:false,
has_unprivileged_createsymlink:false,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
has_con_24bit_colors:false,
},
};
wincaps wincap_10_1703 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
mmap_storage_high:0x700000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:false,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:true,
has_broken_whoami:false,
has_unprivileged_createsymlink:true,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
has_con_24bit_colors:true,
},
};
wincaps wincap_10_1709 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
mmap_storage_high:0x700000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:false,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:true,
has_broken_whoami:false,
has_unprivileged_createsymlink:true,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
has_con_24bit_colors:true,
},
};
wincaps wincap_10_1803 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
mmap_storage_high:0x700000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:false,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:true,
has_broken_whoami:false,
has_unprivileged_createsymlink:true,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_case_sensitive_dirs:true,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
has_con_24bit_colors:true,
},
};
wincaps wincap_10_1809 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
mmap_storage_high:0x700000000000LL,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:false,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:true,
has_broken_whoami:false,
has_unprivileged_createsymlink:true,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:true,
has_posix_unlink_semantics:true,
has_case_sensitive_dirs:true,
has_posix_rename_semantics:true,
no_msv1_0_s4u_logon_in_wow64:false,
has_con_24bit_colors: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);
/* Overwrite unreliable kernel version with correct values returned by
RtlGetNtVersionNumbers. See git log of this change for a description. */
RtlGetNtVersionNumbers (&version.dwMajorVersion,
&version.dwMinorVersion,
&version.dwBuildNumber);
version.dwBuildNumber &= 0xffff;
switch (version.dwMajorVersion)
{
case 6:
switch (version.dwMinorVersion)
{
case 0:
caps = &wincap_vista;
break;
case 1:
caps = &wincap_7;
break;
case 2:
caps = &wincap_8;
break;
case 3:
default:
caps = &wincap_8_1;
break;
}
break;
case 10:
default:
if (likely (version.dwBuildNumber >= 17763))
caps = &wincap_10_1809;
else if (version.dwBuildNumber >= 17134)
caps = &wincap_10_1803;
else if (version.dwBuildNumber >= 16299)
caps = &wincap_10_1709;
else if (version.dwBuildNumber >= 15063)
caps = &wincap_10_1703;
else
caps = & wincap_10_1507;
}
((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
if (NT_SUCCESS (NtQueryInformationProcess (NtCurrentProcess (),
ProcessWow64Information,
&wow64, sizeof wow64, NULL))
&& !wow64)
#endif
{
((wincaps *)caps)->needs_count_in_si_lpres2 = false;
((wincaps *)caps)->has_gaa_largeaddress_bug = false;
((wincaps *)caps)->has_broken_prefetchvm = false;
((wincaps *)caps)->no_msv1_0_s4u_logon_in_wow64 = false;
}
__small_sprintf (osnam, "NT-%d.%d", version.dwMajorVersion,
version.dwMinorVersion);
}