newlib/winsup/cygwin/wincap.cc
Corinna Vinschen e18f7f99cc Cygwin: memory: declare extended memory API
Windows 10 1803 introduced an extended memory API allowing
to specify memory regions allocations are to be taken off.

In preparation of using this API, define the struct
MEM_EXTENDED_PARAMETER and friends.  Declare and allow to
autoload the functions VirtualAlloc2 and NtMapViewOfSectionEx.

Introduce a wincap flag has_extended_mem_api.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2020-04-07 17:42:02 +02:00

406 lines
12 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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api: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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api: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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api: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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api: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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api: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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:false,
},
};
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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:false,
},
};
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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api: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,
has_con_broken_csi3j:true,
has_con_broken_il_dl:false,
has_con_esc_rep:false,
has_extended_mem_api:true,
},
};
wincaps wincap_10_1903 __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,
has_con_broken_csi3j:false,
has_con_broken_il_dl:true,
has_con_esc_rep:true,
has_extended_mem_api: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 >= 18362))
caps = &wincap_10_1903;
else if (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);
}