newlib/winsup/cygwin/sysconf.cc

867 lines
26 KiB
C++
Raw Normal View History

2000-02-17 20:38:33 +01:00
/* sysconf.cc
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"
2000-02-17 20:38:33 +01:00
#include <unistd.h>
#include <sys/param.h>
#include <sys/sysinfo.h>
#include "cygerrno.h"
#include "security.h"
Add "path.h" include throughout, where needed. Use new path_conv methods and operators to simplify testing for directory and attributes, throughout. * path.h (path_conv::exists): New method. (path_conv::has_attribute): Ditto. (path_conv::isdir): Ditto. (path_conv::DWORD &): New operator. (path_conv::int &): Ditto. * dir.cc (rmdir): Eliminate a goto. * dtable.cc (dtable::build_fhandler): Accept opt and suffix info for path_conv.check. Return fh == NULL on path_conv error. Pass unit to set_name as appropriate. (dtable::reset_unix_path_name): New method. * dtable.h (dtable): Declare new method. Reflect arg changes to build_fhandler. * fhandler.cc (fhandler_disk_dummy_name): Eliminate. (fhandler_base::set_name): Expect paths to be NULL. Build unix_path_name from win32_path_name when it is a device. (fhandler_base::reset_unix_path_name): New method. (fhandler_base::raw_read): Report EISDIR when ERROR_INVALID_FUNCTION or ERROR_INVALID_PARAMETER and reading a directory. (fhandler_disk_file::fstat): Don't call stat_dev since we should now never be calling fhandler_disk_file methods with devices. (fhandler_base::fhandler_base): Clear {unix,win32}_path_name. (fhandler_base::~fhandler_base): Always free {unix,win32}_path_name. (fhandler_disk_file::fhandler_disk_file): Remove set_no_free_names kludge. (fhandler_disk_file::open): Ditto. * fhandler.h (fhandler_base::no_free_names): Eliminate. (fhandler_base::set_no_free_names): Ditto. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Don't set unix_path_name here. * path.cc (fchdir): Lock fd table throughout. Use new dtable::reset_unix_path_name method to reset path. * syscalls.cc (stat_worker): Reorganize to always call fstat method. Pass path_conv method to fhandler_*::open. (chroot): Elminate a goto.
2001-10-01 06:10:07 +02:00
#include "path.h"
* devices.cc: New file. * devices.gperf: New file. * devices.shilka: New file. * cygwin-gperf: New file. * cygwin-shilka: New file. * fhandler_fifo.cc: New file. * fhandler_nodevice.cc : New file. Reorganize headers so that path.h precedes fhandler.h throughout. Remove device argument and unit arguments from fhandler constructors throughout. Remove pc arguments to fhandler functions and use internal pc element instead, throughout. Use dev element in pc throughout. Use major/minor elements rather than units and device numbers previously in fhandler class. Use correct methods for fhandler file names rather than directly accessing file name variables, throughout. * Makefile.in (DLL_OFILES): Add devices.o, fhandler_fifo.o * dcrt0.cc (dll_crt0_1): Call device::init. * devices.h: Renumber devices based on more Linux-like major/minor numbers. Add more devices. Declare standard device storage. (device): Declare struct. * dir.cc (opendir): Use new 'build_fh_name' to construct a fhandler_* type. * dtable.cc (dtable::get_debugger_info): Ditto. (cygwin_attach_handle_to_fd): Ditto. (dtable::release): Remove special FH_SOCKET case in favor of generic "need_fixup_before" test. (dtable::init_std_file_from_handle): Use either build_fh_dev or build_fh_name to build standard fhandler. (dtable::build_fh_name): Renamed from dtable::build_fhandler_from_name. Move out of dtable class. Don't accept a path_conv argument. Just build it here and pass it to: (build_fh_pc): Renamed from dtable::build_fhandler. Move out of dtable class. Use intrinsic device type in path_conv to create new fhandler. (build_fh_dev): Renamed from dtable::build_fhandler. Move out of dtable class. Simplify arguments to just take new 'device' type and a name. Just return pointer to fhandler rather than trying to insert into dtable. (dtable::dup_worker): Accommodate above build_fh name changes. (dtable::find_fifo): New (currently broken) function. (handle_to_fn): Use strechr for efficiency. * dtable.h: Reflect above build_fh name changes and argument differences. (fhandler_base *&operator []): Return self rather than copy of self. * fhandler.cc (fhandler_base::operator =): Use pc element to set normalized path. (fhandler_base::set_name): Ditto. (fhandler_base::raw_read): Use method to access name. (fhandler_base::write): Correctly use get_output_handle rather than get_handle. (handler_base::device_access_denied): New function. (fhandler_base::open): Eliminate pc argument and use pc element of fhandler_base throughout. (fhandler_base::fstat): Detect if device is based in filesystem and use fstat_fs to calculate stat, if so. (fhandler_base::fhandler_base): Eliminate handling of file names and, instead, just free appropriate component from pc. (fhandler_base::opendir): Remove path_conv parameter. * fhandler.h: Remove all device flags. (fhandler_base::pc): New element. (fhandler_base::set_name): Change argument to path_conv. (fhandler_base::error): New function. (fhandler_base::exists): New function. (fhandler_base::pc_binmode): New function. (fhandler_base::dev): New function. (fhandler_base::open_fs): New function. (fhandler_base::fstat_fs): New function. (fhandler_base::fstat_by_name): New function. (fhandler_base::fstat_by_handle): New function. (fhandler_base::isfifo): New function. (fhandler_base::is_slow): New function. (fhandler_base::is_auto_device): New function. (fhandler_base::is_fs_special): New function. (fhandler_base::device_access_denied): New function. (fhandler_base::operator DWORD&): New operator. (fhandler_base::get_name): Return normalized path from pc. (fhandler_base::get_win32_name): Return windows path from pc. (fhandler_base::isdevice): Renamed from is_device. (fhandler_base::get_native_name): Return device format. (fhandler_fifo): New class. (fhandler_nodevice): New class. (select_stuff::device_specific): Remove array. (select_stuff::device_specific_pipe): New class element. (select_stuff::device_specific_socket): New class element. (select_stuff::device_specific_serial): New class element. (select_stuff::select_stuff): Initialize new elements. * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Move to base class from fhandler_disk_file. (fhandler_base::fstat_by_name): Ditto. (fhandler_base::fstat_by_name): Ditto. (fhandler_disk_file::open): Move most functionality into fhandler_base::open_fs. (fhandler_base::open_fs): New function. (fhandler_disk_file::close): Move most functionality into fhandler_base::close_fs. (fhandler_base::close_fs): New function. * fhandler_mem.cc (fhandler_dev_mem::open): Use device name in debugging output. * fhandler_socket.cc (fhandler_socket::set_connect_secret): Copy standard urandom device into appropriate place. (fhandler_socket::accept): Reflect change in fdsock return value. * fhandler_tty.cc: See "throughouts" above. * net.cc: Accommodate fdsock change throughout. (fdsock): Return success or failure, accept fd argument and device argument. * path.cc (symlink_info::major): New element. (symlink_info::minor): New element. (symlink_info::parse_device): Declare new function. (fs_info::update): Accommodate changes in path_conv class. (path_conv::fillin): Ditto. (path_conv::return_and_clear_normalized_path): Eliminate. (path_conv::set_normalized_path): New function. (path_conv::path_conv): Set info in dev element. Use path_conv methods Check for FH_FS rather than FH_BAD to indicate when to fill in filesystem stuff. where appropriate rather than direct access. Use set_normalized_path to set normalized path. (windows_device_names): Eliminate. (get_dev): Ditto. (get_raw_device_number): Ditto. (get_device_number): Ditto. (win32_device_name): Call new device name parser to do most of the heavy lifting. (mount_info::conv_to_win32_path): Fill in dev field as appropriate. (symlink_worker): Handle new device files. (symlink_info::check): Ditto. (symlink_info::parse_device): Define new function. * path.h (executable_states): Move here from fhandler.h. (fs_info): Rename variables to *_storage and create methods for accessing same. (path_conv): Add dev element, remove devn and unit and adjust inline methods to accommodate. (set_normalized_path): Declare new function. * pinfo.cc (_pinfo::commune_recv): Add broken support for handling fifos. (_pinfo::commune_send): Ditto. * pipe.cc (fhandler_pipe::close): check for existence of handle before closing it. (handler_pipe::create): Rename from make_pipe. Change arguments to accept fhandler_pipe array. Accommodate fifos. (pipe): Rework to deal with fhandler_pipe::create changes. (_pipe): Ditto. * select.cc: Use individual device_specific types throughout rather than indexing with obsolete device number. (set_bits): Use is_socket call rather than checking device number. * shared_info.h (CURR_MOUNT_MAGIC): Update. (conv_to_win32_path): Reflect addition of device argument. * syscalls.cc (mknod_worker): New function. (open): Use build_fh_name to build fhandler. (chown_worker): Detect if this is an 'auto' device rather than an on-filesystem device and handle appropriately. (chmod_device): New function. (chmod): Detect if this is an 'auto' device rather than an on-filesystem device and handle appropriately. Use chmod_device to set mode of in-filesystem devices. (stat_worker): Eliminate path_conv argument. Call build_fh_name to construct fhandler. Use fh->error() rather than pc->error to detect errors in fhandler construction. (access_worker): New function pulled from access. Accommodate in-filesystem devices. (access): Use access_worker. (fpathconf): Detect if this is an 'auto' device rather than an on-filesystem device and handle appropriately. (mknod_worker): New function. (mknod32): New function. (chroot): Free normalized path -- assuming it was actually cmalloced. * tty.cc (create_tty_master): Tweak for new device class. (tty::common_init): Ditto. * winsup.h (stat_worker): Remove. (symlink_worker): Declare. * exceptions.cc (set_process_mask): Just call sig_dispatch_pending and don't worry about pending_signals since sig_dispatch_pending should always do the right thing now. (sig_handle): Reorganize SIGCONT handling to more closely conform to SUSv3. * pinfo.h: Move __SIG enum to sigproc.h. (PICOM_FIFO): New enum element. (_pinfo): Remove 'thread2signal' stuff throughout class. (_pinfo::commune_send): Make varargs. (_pinfo::sigtodo): Eliminate. (_pinfo::thread2signal): Ditto. * signal.cc (kill_worker): Eliminate call to setthread2signal. * sigproc.cc (local_sigtodo): Eliminate. (getlocal_sigtodo): Ditto. (sigelem): New class. (pending_signals): New class. (sigqueue): New variable, start of sigqueue linked list. (sigcatch_nonmain): Eliminate. (sigcatch_main): Eliminate. (sigcatch_nosync): Eliminate. (sigcomplete_nonmain): Eliminate. (pending_signals): Eliminate. (sig_clear): Call signal thread to clear pending signals, unless already in signal thread. (sigpending): Call signal thread to get pending signals. (sig_dispatch_pending): Eliminate use of pending_signals and just check sigqueue. (sigproc_terminate): Eliminate all of the obsolete semaphore stuff. Close signal pipe handle. (sig_send): Eliminate all of the obsolete semaphore stuff and use pipe to send signals. (getevent): Eliminate. (pending_signals::add): New function. (pending_signals::del): New function. (pending_signals::next): New function. (wait_sig): Eliminate all of the obsolete semaphore stuff. Use pipe to communicate and maintain a linked list of signals. * sigproc.h: Move __SIG defines here. Add __SIGPENDING. (sig_dispatch_pending): Remove "C" specifier. (sig_handle): Accept a mask argument. * thread.cc: Remove signal handling considerations throughout.
2003-09-25 02:37:18 +02:00
#include "fhandler.h"
#include "dtable.h"
#include "pinfo.h"
#include "ntdll.h"
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
#include "tls_pbuf.h"
#include "cpuid.h"
2000-02-17 20:38:33 +01:00
static long
get_open_max (int in)
{
long max = getdtablesize ();
if (max < OPEN_MAX)
max = OPEN_MAX;
return max;
}
static long
get_page_size (int in)
{
return wincap.allocation_granularity ();
}
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
static bool
__nt_query_system (PSYSTEM_BASIC_INFORMATION psbi)
{
NTSTATUS status;
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
status = NtQuerySystemInformation (SystemBasicInformation, (PVOID) psbi,
sizeof *psbi, NULL);
return NT_SUCCESS (status);
}
#define add_size(p,s) ((p) = ((__typeof__(p))((PBYTE)(p)+(s))))
static long
get_nproc_values (int in)
{
if (!wincap.has_processor_groups ()) /* Pre Windows 7 */
{
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
SYSTEM_BASIC_INFORMATION sbi;
if (!__nt_query_system (&sbi))
return -1;
switch (in)
{
case _SC_NPROCESSORS_CONF:
return sbi.NumberProcessors;
case _SC_NPROCESSORS_ONLN:
{
int i = 0;
do
if (sbi.ActiveProcessors & 1)
i++;
while (sbi.ActiveProcessors >>= 1);
return i;
}
}
}
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
tmp_pathbuf tp;
PSYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX lpi, plpi;
DWORD lpi_size = NT_MAX_PATH;
long cnt = 0;
lpi = (PSYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX) tp.c_get ();
if (!GetLogicalProcessorInformationEx (RelationGroup, lpi, &lpi_size))
return -1;
plpi = lpi;
for (DWORD size = lpi_size; size > 0;
size -= plpi->Size, add_size (plpi, plpi->Size))
if (plpi->Relationship == RelationGroup)
{
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
for (WORD i = 0; i < plpi->Group.MaximumGroupCount; ++i)
switch (in)
{
case _SC_NPROCESSORS_CONF:
cnt += plpi->Group.GroupInfo[0].MaximumProcessorCount;
break;
case _SC_NPROCESSORS_ONLN:
cnt += plpi->Group.GroupInfo[0].ActiveProcessorCount;
break;
}
}
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
return cnt;
}
static long
get_phys_pages (int in)
{
SYSTEM_BASIC_INFORMATION sbi;
if (!__nt_query_system (&sbi))
return -1;
return sbi.NumberOfPhysicalPages
/ (wincap.allocation_granularity () / wincap.page_size ());
}
static long
get_avphys (int in)
{
NTSTATUS status;
SYSTEM_PERFORMANCE_INFORMATION spi;
status = NtQuerySystemInformation (SystemPerformanceInformation,
(PVOID) &spi, sizeof spi, NULL);
if (!NT_SUCCESS (status))
{
__seterrno_from_nt_status (status);
2013-04-23 11:44:36 +02:00
debug_printf ("NtQuerySystemInformation: status %y, %E", status);
return -1;
}
return spi.AvailablePages
/ (wincap.allocation_granularity () / wincap.page_size ());
}
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
enum cache_level
{
LevelNone,
Level1I,
Level1D,
Level2,
Level3,
Level4
};
struct cpuid2_cache_desc
{
uint8_t desc;
cache_level level;
uint32_t size;
uint32_t assoc;
uint32_t linesize;
};
static const cpuid2_cache_desc cpuid2_cache_descriptor[] =
{
{ 0x06, Level1I, 8, 4, 32 },
{ 0x08, Level1I, 16, 4, 32 },
{ 0x09, Level1I, 32, 4, 64 },
{ 0x0a, Level1D, 8, 2, 32 },
{ 0x0c, Level1D, 16, 4, 32 },
{ 0x0d, Level1D, 16, 4, 64 },
{ 0x0e, Level1D, 24, 6, 64 },
{ 0x21, Level2, 256, 8, 64 },
{ 0x22, Level3, 512, 4, 64 },
{ 0x23, Level3, 1024, 8, 64 },
{ 0x25, Level3, 2048, 8, 64 },
{ 0x29, Level3, 4096, 8, 64 },
{ 0x2c, Level1D, 32, 8, 64 },
{ 0x30, Level1I, 32, 8, 64 },
{ 0x39, Level2, 128, 4, 64 },
{ 0x3a, Level2, 192, 6, 64 },
{ 0x3b, Level2, 128, 2, 64 },
{ 0x3c, Level2, 256, 4, 64 },
{ 0x3d, Level2, 384, 6, 64 },
{ 0x3e, Level2, 512, 4, 64 },
{ 0x3f, Level2, 256, 2, 64 },
{ 0x41, Level2, 128, 4, 32 },
{ 0x42, Level2, 256, 4, 32 },
{ 0x43, Level2, 512, 4, 32 },
{ 0x44, Level2, 1024, 4, 32 },
{ 0x45, Level2, 2048, 4, 32 },
{ 0x46, Level3, 4096, 4, 64 },
{ 0x47, Level3, 8192, 8, 64 },
{ 0x48, Level2, 3072, 12, 64 },
{ 0x49, Level3, 4096, 16, 64 },
{ 0x4a, Level3, 6144, 12, 64 },
{ 0x4b, Level3, 8192, 16, 64 },
{ 0x4c, Level3, 12288, 12, 64 },
{ 0x4d, Level3, 16384, 16, 64 },
{ 0x4e, Level2, 6144, 24, 64 },
{ 0x60, Level1D, 16, 8, 64 },
{ 0x66, Level1D, 8, 4, 64 },
{ 0x67, Level1D, 16, 4, 64 },
{ 0x68, Level1D, 32, 4, 64 },
{ 0x78, Level2, 1024, 4, 64 },
{ 0x79, Level2, 128, 8, 64 },
{ 0x7a, Level2, 256, 8, 64 },
{ 0x7b, Level2, 512, 8, 64 },
{ 0x7c, Level2, 1024, 8, 64 },
{ 0x7d, Level2, 2048, 8, 64 },
{ 0x7f, Level2, 512, 2, 64 },
{ 0x80, Level2, 512, 8, 64 },
{ 0x82, Level2, 256, 8, 32 },
{ 0x83, Level2, 512, 8, 32 },
{ 0x84, Level2, 1024, 8, 32 },
{ 0x85, Level2, 2048, 8, 32 },
{ 0x86, Level2, 512, 4, 64 },
{ 0x87, Level2, 1024, 8, 64 },
{ 0xd0, Level3, 512, 4, 64 },
{ 0xd1, Level3, 1024, 4, 64 },
{ 0xd2, Level3, 2048, 4, 64 },
{ 0xd6, Level3, 1024, 8, 64 },
{ 0xd7, Level3, 2048, 8, 64 },
{ 0xd8, Level3, 4096, 12, 64 },
{ 0xdc, Level3, 2048, 12, 64 },
{ 0xdd, Level3, 4096, 12, 64 },
{ 0xde, Level3, 8192, 12, 64 },
{ 0xe2, Level3, 2048, 16, 64 },
{ 0xe3, Level3, 4096, 16, 64 },
{ 0xe4, Level3, 8192, 16, 64 },
{ 0xea, Level3, 12288, 24, 64 },
{ 0xeb, Level3, 18432, 24, 64 },
{ 0xec, Level3, 24576, 24, 64 },
};
static int
cpuid2_cache_desc_compar (const void *key, const void *memb)
{
cpuid2_cache_desc *ckey = (cpuid2_cache_desc *) key;
cpuid2_cache_desc *cmemb = (cpuid2_cache_desc *) memb;
return ckey->desc - cmemb->desc;
}
static long
get_cpu_cache_intel_cpuid2 (int in)
{
uint32_t reg[4];
long ret = 0;
int num;
cpuid (reg, reg + 1, reg + 2, reg + 3, 0x00000002);
num = reg[0] & 0xff;
for (int i = 0; i < num; ++i)
{
cpuid (reg, reg + 1, reg + 2, reg + 3, 0x00000002);
for (int r = 0; r < 4; ++r)
{
if (reg[r] & 0x80000000)
continue;
for (int b = (r == 0) ? 1 : 0; b < 4; ++b)
{
cpuid2_cache_desc key, *cdp;
key.desc = ((uint8_t *) &reg[r])[b];
cdp = (cpuid2_cache_desc *)
bsearch (&key, cpuid2_cache_descriptor,
sizeof cpuid2_cache_descriptor
/ sizeof *cpuid2_cache_descriptor,
sizeof *cpuid2_cache_descriptor,
cpuid2_cache_desc_compar);
if (!cdp)
continue;
switch (in)
{
case _SC_LEVEL1_ICACHE_SIZE:
if (cdp->level == Level1I)
ret += cdp->size * 1024;
break;
case _SC_LEVEL1_ICACHE_ASSOC:
if (cdp->level == Level1I)
return cdp->assoc;
break;
case _SC_LEVEL1_ICACHE_LINESIZE:
if (cdp->level == Level1I)
return cdp->linesize;
break;
case _SC_LEVEL1_DCACHE_SIZE:
if (cdp->level == Level1D)
ret += cdp->size * 1024;
break;
case _SC_LEVEL1_DCACHE_ASSOC:
if (cdp->level == Level1D)
return cdp->assoc;
break;
case _SC_LEVEL1_DCACHE_LINESIZE:
if (cdp->level == Level1D)
return cdp->linesize;
break;
case _SC_LEVEL2_CACHE_SIZE:
if (cdp->level == Level2)
ret += cdp->size * 1024;
break;
case _SC_LEVEL2_CACHE_ASSOC:
if (cdp->level == Level2)
return cdp->assoc;
break;
case _SC_LEVEL2_CACHE_LINESIZE:
if (cdp->level == Level2)
return cdp->linesize;
break;
case _SC_LEVEL3_CACHE_SIZE:
if (cdp->level == Level3)
ret += cdp->size * 1024;
break;
case _SC_LEVEL3_CACHE_ASSOC:
if (cdp->level == Level3)
return cdp->assoc;
break;
case _SC_LEVEL3_CACHE_LINESIZE:
if (cdp->level == Level3)
return cdp->linesize;
break;
}
}
}
}
return ret;
}
static long
get_cpu_cache_intel_cpuid4 (int in)
{
uint32_t eax, ebx, ecx, edx;
long ret = 0;
for (int idx = 0; ; ++idx)
{
uint32_t cache_type, cur_level, assoc, part, linesize, sets;
cpuid (&eax, &ebx, &ecx, &edx, 0x00000004, idx);
if ((cache_type = (eax & 0x1f))== 0)
break;
cur_level = ((eax >> 5) & 0x7);
assoc = ((ebx >> 22) & 0x3ff) + 1;
part = ((ebx >> 12) & 0x3ff) + 1;
linesize = (ebx & 0xfff) + 1;
sets = ecx + 1;
switch (in)
{
case _SC_LEVEL1_ICACHE_SIZE:
if (cur_level == 1 && cache_type == 2)
ret += assoc * part * linesize * sets;
break;
case _SC_LEVEL1_ICACHE_ASSOC:
if (cur_level == 1 && cache_type == 2)
return assoc;
case _SC_LEVEL1_ICACHE_LINESIZE:
if (cur_level == 1 && cache_type == 2)
return linesize;
case _SC_LEVEL1_DCACHE_SIZE:
if (cur_level == 1 && cache_type == 1)
ret += assoc * part * linesize * sets;
break;
case _SC_LEVEL1_DCACHE_ASSOC:
if (cur_level == 1 && cache_type == 1)
return assoc;
case _SC_LEVEL1_DCACHE_LINESIZE:
if (cur_level == 1 && cache_type == 1)
return linesize;
case _SC_LEVEL2_CACHE_SIZE:
if (cur_level == 2)
ret += assoc * part * linesize * sets;
break;
case _SC_LEVEL2_CACHE_ASSOC:
if (cur_level == 2)
return assoc;
case _SC_LEVEL2_CACHE_LINESIZE:
if (cur_level == 2)
return linesize;
case _SC_LEVEL3_CACHE_SIZE:
if (cur_level == 3)
ret += assoc * part * linesize * sets;
break;
case _SC_LEVEL3_CACHE_ASSOC:
if (cur_level == 3)
return assoc;
case _SC_LEVEL3_CACHE_LINESIZE:
if (cur_level == 3)
return linesize;
}
}
return ret;
}
/* Also called from format_proc_cpuinfo */
long
get_cpu_cache_intel (int in, uint32_t maxf)
{
long ret = 0;
switch (in)
{
case _SC_LEVEL1_ICACHE_SIZE:
case _SC_LEVEL1_ICACHE_ASSOC:
case _SC_LEVEL1_ICACHE_LINESIZE:
case _SC_LEVEL1_DCACHE_SIZE:
case _SC_LEVEL1_DCACHE_ASSOC:
case _SC_LEVEL1_DCACHE_LINESIZE:
case _SC_LEVEL2_CACHE_SIZE:
case _SC_LEVEL2_CACHE_ASSOC:
case _SC_LEVEL2_CACHE_LINESIZE:
case _SC_LEVEL3_CACHE_SIZE:
case _SC_LEVEL3_CACHE_ASSOC:
case _SC_LEVEL3_CACHE_LINESIZE:
if (maxf >= 4)
ret = get_cpu_cache_intel_cpuid4 (in);
else if (maxf >= 2)
ret = get_cpu_cache_intel_cpuid2 (in);
break;
default:
break;
}
return ret;
}
static const long assoc[16] = { 0, 1, 2, 2, 4, 4, 8, 8,
16, 16, 32, 48, 64, 96, 128, 0x8000 };
/* Also called from format_proc_cpuinfo */
long
get_cpu_cache_amd (int in, uint32_t maxe)
{
uint32_t eax, ebx, ecx, edx;
long ret = 0;
if (in >= _SC_LEVEL1_ICACHE_SIZE && in <= _SC_LEVEL1_DCACHE_LINESIZE
&& maxe >= 0x80000005)
cpuid (&eax, &ebx, &ecx, &edx, 0x80000005);
else if (in >= _SC_LEVEL2_CACHE_SIZE && in <= _SC_LEVEL3_CACHE_LINESIZE
&& maxe >= 0x80000006)
cpuid (&eax, &ebx, &ecx, &edx, 0x80000006);
else
return 0;
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
switch (in)
{
case _SC_LEVEL1_ICACHE_SIZE:
ret = (edx & 0xff000000) >> 14;
break;
case _SC_LEVEL1_ICACHE_ASSOC:
ret = (edx & 0xff0000) >> 16;
if (ret == 0xff)
ret = 0x8000;
break;
case _SC_LEVEL1_ICACHE_LINESIZE:
ret = (edx & 0xff);
break;
case _SC_LEVEL1_DCACHE_SIZE:
ret = (ecx & 0xff000000) >> 14;
break;
case _SC_LEVEL1_DCACHE_ASSOC:
ret = (ecx & 0xff0000) >> 16;
if (ret == 0xff)
ret = 0x8000;
break;
case _SC_LEVEL1_DCACHE_LINESIZE:
ret = (ecx & 0xff);
break;
case _SC_LEVEL2_CACHE_SIZE:
ret = (ecx & 0xffff0000) >> 6;
break;
case _SC_LEVEL2_CACHE_ASSOC:
ret = assoc[(ecx & 0xf000) >> 12];
break;
case _SC_LEVEL2_CACHE_LINESIZE:
ret = (ecx & 0xff);
break;
case _SC_LEVEL3_CACHE_SIZE:
ret = (long) ((edx & 0xfffc0000) >> 18) * 512 * 1024;
break;
case _SC_LEVEL3_CACHE_ASSOC:
ret = assoc[(edx & 0xf000) >> 12];
break;
case _SC_LEVEL3_CACHE_LINESIZE:
ret = (edx & 0xff);
break;
default:
break;
}
return ret;
}
static long
get_cpu_cache (int in)
{
uint32_t maxf, vendor_id[4];
cpuid (&maxf, &vendor_id[0], &vendor_id[2], &vendor_id[1], 0x00000000);
vendor_id[3] = 0;
if (!strcmp ((char*) vendor_id, "GenuineIntel"))
return get_cpu_cache_intel (in, maxf & 0xffff);
else if (!strcmp ((char*)vendor_id, "AuthenticAMD"))
{
uint32_t maxe = 0, unused;
cpuid (&maxe, &unused, &unused, &unused, 0x80000000);
return get_cpu_cache_amd (in, maxe);
}
return 0;
}
enum sc_type { nsup, cons, func };
static struct
{
sc_type type;
union
{
long c;
long (*f)(int);
};
} sca[] =
{
{cons, {c:ARG_MAX}}, /* 0, _SC_ARG_MAX */
{cons, {c:CHILD_MAX}}, /* 1, _SC_CHILD_MAX */
{cons, {c:CLOCKS_PER_SEC}}, /* 2, _SC_CLK_TCK */
{cons, {c:NGROUPS_MAX}}, /* 3, _SC_NGROUPS_MAX */
{func, {f:get_open_max}}, /* 4, _SC_OPEN_MAX */
{cons, {c:_POSIX_JOB_CONTROL}}, /* 5, _SC_JOB_CONTROL */
{cons, {c:_POSIX_SAVED_IDS}}, /* 6, _SC_SAVED_IDS */
{cons, {c:_POSIX_VERSION}}, /* 7, _SC_VERSION */
{func, {f:get_page_size}}, /* 8, _SC_PAGESIZE */
{func, {f:get_nproc_values}}, /* 9, _SC_NPROCESSORS_CONF */
{func, {f:get_nproc_values}}, /* 10, _SC_NPROCESSORS_ONLN */
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
{func, {f:get_phys_pages}}, /* 11, _SC_PHYS_PAGES */
{func, {f:get_avphys}}, /* 12, _SC_AVPHYS_PAGES */
{cons, {c:MQ_OPEN_MAX}}, /* 13, _SC_MQ_OPEN_MAX */
{cons, {c:MQ_PRIO_MAX}}, /* 14, _SC_MQ_PRIO_MAX */
{cons, {c:RTSIG_MAX}}, /* 15, _SC_RTSIG_MAX */
{cons, {c:-1L}}, /* 16, _SC_SEM_NSEMS_MAX */
{cons, {c:SEM_VALUE_MAX}}, /* 17, _SC_SEM_VALUE_MAX */
{cons, {c:SIGQUEUE_MAX}}, /* 18, _SC_SIGQUEUE_MAX */
{cons, {c:TIMER_MAX}}, /* 19, _SC_TIMER_MAX */
{nsup, {c:0}}, /* 20, _SC_TZNAME_MAX */
{cons, {c:-1L}}, /* 21, _SC_ASYNCHRONOUS_IO */
{cons, {c:_POSIX_FSYNC}}, /* 22, _SC_FSYNC */
{cons, {c:_POSIX_MAPPED_FILES}}, /* 23, _SC_MAPPED_FILES */
{cons, {c:-1L}}, /* 24, _SC_MEMLOCK */
{cons, {c:_POSIX_MEMLOCK_RANGE}}, /* 25, _SC_MEMLOCK_RANGE */
{cons, {c:_POSIX_MEMORY_PROTECTION}}, /* 26, _SC_MEMORY_PROTECTION */
{cons, {c:_POSIX_MESSAGE_PASSING}}, /* 27, _SC_MESSAGE_PASSING */
{cons, {c:-1L}}, /* 28, _SC_PRIORITIZED_IO */
{cons, {c:_POSIX_REALTIME_SIGNALS}}, /* 29, _SC_REALTIME_SIGNALS */
{cons, {c:_POSIX_SEMAPHORES}}, /* 30, _SC_SEMAPHORES */
{cons, {c:_POSIX_SHARED_MEMORY_OBJECTS}}, /* 31, _SC_SHARED_MEMORY_OBJECTS */
{cons, {c:_POSIX_SYNCHRONIZED_IO}}, /* 32, _SC_SYNCHRONIZED_IO */
{cons, {c:_POSIX_TIMERS}}, /* 33, _SC_TIMERS */
{nsup, {c:0}}, /* 34, _SC_AIO_LISTIO_MAX */
{nsup, {c:0}}, /* 35, _SC_AIO_MAX */
{nsup, {c:0}}, /* 36, _SC_AIO_PRIO_DELTA_MAX */
{nsup, {c:0}}, /* 37, _SC_DELAYTIMER_MAX */
{cons, {c:PTHREAD_KEYS_MAX}}, /* 38, _SC_THREAD_KEYS_MAX */
{cons, {c:PTHREAD_STACK_MIN}}, /* 39, _SC_THREAD_STACK_MIN */
{cons, {c:-1L}}, /* 40, _SC_THREAD_THREADS_MAX */
{cons, {c:TTY_NAME_MAX}}, /* 41, _SC_TTY_NAME_MAX */
{cons, {c:_POSIX_THREADS}}, /* 42, _SC_THREADS */
* cygwin.din (pthread_attr_getguardsize): Export. (pthread_attr_setguardsize): Export. (pthread_attr_setstack): Export. (pthread_attr_setstackaddr): Export. * init.cc (dll_entry): Remove wow64_test_stack_marker. Check for unusual stack address by testing stack addresses from current TEB. Check validity of _my_tls by testing if it's within the stack as given in current TEB. * miscfuncs.cc (struct thread_wrapper_arg): New structure used to push all required information to thread_wrapper function. (thread_wrapper): Wrapper function for actual thread function. If an application stack has been given, change %ebp and %esp so that the thread function runs on that stack. If the thread has been created by CygwinCreateThread, set up the POSIX guard pages if necessary. (CygwinCreateThread): New function. * miscfuncs.h (CygwinCreateThread): Declare. * ntdll.h (struct _TEB): Define all members up to Peb. * posix.sgml (std-susv4): Move pthread_attr_getguardsize, pthread_attr_setguardsize and pthread_attr_setstack here. (std-deprec): Add pthread_attr_setstackaddr. * sysconf.cc (sca): Set _SC_THREAD_ATTR_STACKADDR to _POSIX_THREAD_ATTR_STACKADDR. * thread.cc (pthread::precreate): Copy pthread_attr stackaddr and guardsize members. (pthread::create): Call CygwinCreateThread. (pthread_attr::pthread_attr): Initialize guardsize. (pthread_attr_setstack): New function. (pthread_attr_setstackaddr): New function. (pthread_attr_setguardsize): New function. (pthread_attr_getguardsize): New function. (pthread_getattr_np): Copy attr.guardsize. * thread.h (pthread_attr): Add member guardsize. * include/pthread.h (pthread_attr_getguardsize): Declare. (pthread_attr_setguardsize): Declare. * include/cygwin/version.h: Bump API minor number.
2011-05-15 20:49:40 +02:00
{cons, {c:_POSIX_THREAD_ATTR_STACKADDR}},/* 43, _SC_THREAD_ATTR_STACKADDR */
{cons, {c:_POSIX_THREAD_ATTR_STACKSIZE}},/* 44, _SC_THREAD_ATTR_STACKSIZE */
{cons, {c:_POSIX_THREAD_PRIORITY_SCHEDULING}}, /* 45, _SC_THREAD_PRIORITY_SCHEDULING */
{cons, {c:-1L}}, /* 46, _SC_THREAD_PRIO_INHERIT */
{cons, {c:-1L}}, /* 47, _SC_THREAD_PRIO_PROTECT */
{cons, {c:_POSIX_THREAD_PROCESS_SHARED}}, /* 48, _SC_THREAD_PROCESS_SHARED */
{cons, {c:_POSIX_THREAD_SAFE_FUNCTIONS}}, /* 49, _SC_THREAD_SAFE_FUNCTIONS */
{cons, {c:16384L}}, /* 50, _SC_GETGR_R_SIZE_MAX */
{cons, {c:16384L}}, /* 51, _SC_GETPW_R_SIZE_MAX */
{cons, {c:LOGIN_NAME_MAX}}, /* 52, _SC_LOGIN_NAME_MAX */
{cons, {c:PTHREAD_DESTRUCTOR_ITERATIONS}}, /* 53, _SC_THREAD_DESTRUCTOR_ITERATIONS */
{cons, {c:_POSIX_ADVISORY_INFO}}, /* 54, _SC_ADVISORY_INFO */
{cons, {c:ATEXIT_MAX}}, /* 55, _SC_ATEXIT_MAX */
{cons, {c:_POSIX_BARRIERS}}, /* 56, _SC_BARRIERS */
{cons, {c:BC_BASE_MAX}}, /* 57, _SC_BC_BASE_MAX */
{cons, {c:BC_DIM_MAX}}, /* 58, _SC_BC_DIM_MAX */
{cons, {c:BC_SCALE_MAX}}, /* 59, _SC_BC_SCALE_MAX */
{cons, {c:BC_STRING_MAX}}, /* 60, _SC_BC_STRING_MAX */
{cons, {c:_POSIX_CLOCK_SELECTION}}, /* 61, _SC_CLOCK_SELECTION */
{nsup, {c:0}}, /* 62, _SC_COLL_WEIGHTS_MAX */
{cons, {c:_POSIX_CPUTIME}}, /* 63, _SC_CPUTIME */
{cons, {c:EXPR_NEST_MAX}}, /* 64, _SC_EXPR_NEST_MAX */
{cons, {c:HOST_NAME_MAX}}, /* 65, _SC_HOST_NAME_MAX */
{cons, {c:IOV_MAX}}, /* 66, _SC_IOV_MAX */
{cons, {c:_POSIX_IPV6}}, /* 67, _SC_IPV6 */
{cons, {c:LINE_MAX}}, /* 68, _SC_LINE_MAX */
{cons, {c:_POSIX_MONOTONIC_CLOCK}}, /* 69, _SC_MONOTONIC_CLOCK */
{cons, {c:_POSIX_RAW_SOCKETS}}, /* 70, _SC_RAW_SOCKETS */
{cons, {c:_POSIX_READER_WRITER_LOCKS}}, /* 71, _SC_READER_WRITER_LOCKS */
{cons, {c:_POSIX_REGEXP}}, /* 72, _SC_REGEXP */
{cons, {c:RE_DUP_MAX}}, /* 73, _SC_RE_DUP_MAX */
{cons, {c:_POSIX_SHELL}}, /* 74, _SC_SHELL */
{cons, {c:_POSIX_SPAWN}}, /* 75, _SC_SPAWN */
{cons, {c:_POSIX_SPIN_LOCKS}}, /* 76, _SC_SPIN_LOCKS */
{cons, {c:-1L}}, /* 77, _SC_SPORADIC_SERVER */
{nsup, {c:0}}, /* 78, _SC_SS_REPL_MAX */
{cons, {c:SYMLOOP_MAX}}, /* 79, _SC_SYMLOOP_MAX */
{cons, {c:_POSIX_THREAD_CPUTIME}}, /* 80, _SC_THREAD_CPUTIME */
{cons, {c:-1L}}, /* 81, _SC_THREAD_SPORADIC_SERVER */
{cons, {c:_POSIX_TIMEOUTS}}, /* 82, _SC_TIMEOUTS */
{cons, {c:-1L}}, /* 83, _SC_TRACE */
{cons, {c:-1L}}, /* 84, _SC_TRACE_EVENT_FILTER */
{nsup, {c:0}}, /* 85, _SC_TRACE_EVENT_NAME_MAX */
{cons, {c:-1L}}, /* 86, _SC_TRACE_INHERIT */
{cons, {c:-1L}}, /* 87, _SC_TRACE_LOG */
{nsup, {c:0}}, /* 88, _SC_TRACE_NAME_MAX */
{nsup, {c:0}}, /* 89, _SC_TRACE_SYS_MAX */
{nsup, {c:0}}, /* 90, _SC_TRACE_USER_EVENT_MAX */
{cons, {c:-1L}}, /* 91, _SC_TYPED_MEMORY_OBJECTS */
2013-04-23 11:44:36 +02:00
{cons, {c:_POSIX_V6_ILP32_OFF32}}, /* 92, _SC_V6_ILP32_OFF32 */
{cons, {c:_POSIX_V6_ILP32_OFFBIG}}, /* 93, _SC_V6_ILP32_OFFBIG */
2013-04-23 11:44:36 +02:00
{cons, {c:_POSIX_V6_LP64_OFF64}}, /* 94, _SC_V6_LP64_OFF64 */
{cons, {c:_POSIX_V6_LPBIG_OFFBIG}}, /* 95, _SC_V6_LPBIG_OFFBIG */
{cons, {c:_XOPEN_CRYPT}}, /* 96, _SC_XOPEN_CRYPT */
{cons, {c:_XOPEN_ENH_I18N}}, /* 97, _SC_XOPEN_ENH_I18N */
{cons, {c:-1L}}, /* 98, _SC_XOPEN_LEGACY */
{cons, {c:-1L}}, /* 99, _SC_XOPEN_REALTIME */
{cons, {c:STREAM_MAX}}, /* 100, _SC_STREAM_MAX */
{cons, {c:_POSIX_PRIORITY_SCHEDULING}}, /* 101, _SC_PRIORITY_SCHEDULING */
{cons, {c:-1L}}, /* 102, _SC_XOPEN_REALTIME_THREADS */
{cons, {c:_XOPEN_SHM}}, /* 103, _SC_XOPEN_SHM */
{cons, {c:-1L}}, /* 104, _SC_XOPEN_STREAMS */
{cons, {c:-1L}}, /* 105, _SC_XOPEN_UNIX */
{cons, {c:_XOPEN_VERSION}}, /* 106, _SC_XOPEN_VERSION */
{cons, {c:_POSIX2_CHAR_TERM}}, /* 107, _SC_2_CHAR_TERM */
{cons, {c:_POSIX2_C_BIND}}, /* 108, _SC_2_C_BIND */
{cons, {c:_POSIX2_C_DEV}}, /* 109, _SC_2_C_DEV */
{cons, {c:-1L}}, /* 110, _SC_2_FORT_DEV */
{cons, {c:-1L}}, /* 111, _SC_2_FORT_RUN */
{cons, {c:-1L}}, /* 112, _SC_2_LOCALEDEF */
{cons, {c:-1L}}, /* 113, _SC_2_PBS */
{cons, {c:-1L}}, /* 114, _SC_2_PBS_ACCOUNTING */
{cons, {c:-1L}}, /* 115, _SC_2_PBS_CHECKPOINT */
{cons, {c:-1L}}, /* 116, _SC_2_PBS_LOCATE */
{cons, {c:-1L}}, /* 117, _SC_2_PBS_MESSAGE */
{cons, {c:-1L}}, /* 118, _SC_2_PBS_TRACK */
{cons, {c:_POSIX2_SW_DEV}}, /* 119, _SC_2_SW_DEV */
{cons, {c:_POSIX2_UPE}}, /* 120, _SC_2_UPE */
{cons, {c:_POSIX2_VERSION}}, /* 121, _SC_2_VERSION */
{cons, {c:-1L}}, /* 122, _SC_THREAD_ROBUST_PRIO_INHERIT */
{cons, {c:-1L}}, /* 123, _SC_THREAD_ROBUST_PRIO_PROTECT */
{cons, {c:-1L}}, /* 124, _SC_XOPEN_UUCP */
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
{func, {f:get_cpu_cache}}, /* 125, _SC_LEVEL1_ICACHE_SIZE */
{func, {f:get_cpu_cache}}, /* 126, _SC_LEVEL1_ICACHE_ASSOC */
{func, {f:get_cpu_cache}}, /* 127, _SC_LEVEL1_ICACHE_LINESIZE */
{func, {f:get_cpu_cache}}, /* 128, _SC_LEVEL1_DCACHE_SIZE */
{func, {f:get_cpu_cache}}, /* 129, _SC_LEVEL1_DCACHE_ASSOC */
{func, {f:get_cpu_cache}}, /* 130, _SC_LEVEL1_DCACHE_LINESIZE */
{func, {f:get_cpu_cache}}, /* 131, _SC_LEVEL2_CACHE_SIZE */
{func, {f:get_cpu_cache}}, /* 132, _SC_LEVEL2_CACHE_ASSOC */
{func, {f:get_cpu_cache}}, /* 133, _SC_LEVEL2_CACHE_LINESIZE */
{func, {f:get_cpu_cache}}, /* 134, _SC_LEVEL3_CACHE_SIZE */
{func, {f:get_cpu_cache}}, /* 135, _SC_LEVEL3_CACHE_ASSOC */
{func, {f:get_cpu_cache}}, /* 136, _SC_LEVEL3_CACHE_LINESIZE */
{func, {f:get_cpu_cache}}, /* 137, _SC_LEVEL4_CACHE_SIZE */
{func, {f:get_cpu_cache}}, /* 138, _SC_LEVEL4_CACHE_ASSOC */
{func, {f:get_cpu_cache}}, /* 139, _SC_LEVEL4_CACHE_LINESIZE */
};
#define SC_MIN _SC_ARG_MAX
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
#define SC_MAX _SC_LEVEL4_CACHE_LINESIZE
2000-02-17 20:38:33 +01:00
/* sysconf: POSIX 4.8.1.1 */
/* Allows a portable app to determine quantities of resources or
presence of an option at execution time. */
long int
sysconf (int in)
{
if (in >= SC_MIN && in <= SC_MAX)
2000-02-17 20:38:33 +01:00
{
switch (sca[in].type)
{
case nsup:
break;
case cons:
return sca[in].c;
case func:
return sca[in].f (in);
}
2000-02-17 20:38:33 +01:00
}
/* Unimplemented sysconf name or invalid option value. */
2000-02-17 20:38:33 +01:00
set_errno (EINVAL);
return -1L;
2000-02-17 20:38:33 +01:00
}
#define ls(s) sizeof(s),s
static struct
{
size_t l;
const char *s;
} csa[] =
{
{ls ("/bin:/usr/bin")}, /* _CS_PATH */
{0, NULL}, /* _CS_POSIX_V6_ILP32_OFF32_CFLAGS */
{0, NULL}, /* _CS_POSIX_V6_ILP32_OFF32_LDFLAGS */
{0, NULL}, /* _CS_POSIX_V6_ILP32_OFF32_LIBS */
{0, NULL}, /* _CS_XBS5_ILP32_OFF32_LINTFLAGS */
2013-04-23 11:44:36 +02:00
#ifdef __x86_64__
{0, NULL}, /* _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS */
{0, NULL}, /* _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS */
{0, NULL}, /* _CS_POSIX_V6_ILP32_OFFBIG_LIBS */
{0, NULL}, /* _CS_XBS5_ILP32_OFFBIG_LINTFLAGS */
{ls ("")}, /* _CS_POSIX_V6_LP64_OFF64_CFLAGS */
{ls ("")}, /* _CS_POSIX_V6_LP64_OFF64_LDFLAGS */
{ls ("")}, /* _CS_POSIX_V6_LP64_OFF64_LIBS */
{ls ("")}, /* _CS_XBS5_LP64_OFF64_LINTFLAGS */
{ls ("")}, /* _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS */
{ls ("")}, /* _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS */
{ls ("")}, /* _CS_POSIX_V6_LPBIG_OFFBIG_LIBS */
{ls ("")}, /* _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS */
{ls ("POSIX_V6_LP64_OFF64")}, /* _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS */
#else
{ls ("")}, /* _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS */
{ls ("")}, /* _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS */
{ls ("")}, /* _CS_POSIX_V6_ILP32_OFFBIG_LIBS */
{ls ("")}, /* _CS_XBS5_ILP32_OFFBIG_LINTFLAGS */
{0, NULL}, /* _CS_POSIX_V6_LP64_OFF64_CFLAGS */
{0, NULL}, /* _CS_POSIX_V6_LP64_OFF64_LDFLAGS */
{0, NULL}, /* _CS_POSIX_V6_LP64_OFF64_LIBS */
{0, NULL}, /* _CS_XBS5_LP64_OFF64_LINTFLAGS */
{0, NULL}, /* _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS */
{0, NULL}, /* _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS */
{0, NULL}, /* _CS_POSIX_V6_LPBIG_OFFBIG_LIBS */
{0, NULL}, /* _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS */
{ls ("POSIX_V6_ILP32_OFFBIG")}, /* _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS */
2013-04-23 11:44:36 +02:00
#endif
{ls ("")}, /* _CS_POSIX_V7_THREADS_CFLAGS */
{ls ("")}, /* _CS_POSIX_V7_THREADS_LDFLAGS */
{ls ("POSIXLY_CORRECT=1")}, /* _CS_V7_ENV */
{ls ("")}, /* _CS_LFS_CFLAGS */
{ls ("")}, /* _CS_LFS_LDFLAGS */
{ls ("")}, /* _CS_LFS_LIBS */
{ls ("")}, /* _CS_LFS_LINTFLAGS */
};
#define CS_MIN _CS_PATH
#define CS_MAX _CS_LFS_LINTFLAGS
extern "C" size_t
confstr (int in, char *buf, size_t len)
{
if (in >= CS_MIN && in <= CS_MAX)
{
if (csa[in].l && len)
{
buf[0] = 0;
strncat (buf, csa[in].s, MIN (len, csa[in].l) - 1);
}
return csa[in].l;
}
/* Invalid option value. */
set_errno (EINVAL);
return 0;
}
extern "C" int
get_nprocs_conf (void)
{
return get_nproc_values (_SC_NPROCESSORS_CONF);
}
extern "C" int
get_nprocs (void)
{
return get_nproc_values (_SC_NPROCESSORS_ONLN);
}
extern "C" long
get_phys_pages (void)
{
Allow sysconf to return CPU cache information * include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as on Linux. * fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information from new cache functions in sysconf.cc, get_cpu_cache_intel and get_cpu_cache_amd. * sysconf.cc (__nt_query_system): New local helper. (get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems. Use GetLogicalProcessorInformationEx otherwise to handle more than 64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN. (get_phys_pages): New helper to handle _SC_PHYS_PAGES. (cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor values to cache type, cache size, associativity and linesize. (cpuid2_cache_desc_compar): Comparision function for bsearch over cpuid2_cache_descriptor. (get_cpu_cache_intel_cpuid2): New function to fetch cache info from Intel CPUID 2. (get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4. (get_cpu_cache_intel): New function as CPU-specific entry point. (assoc): New array to map associativity values from AMD CPUID 0x80000006. (get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs 0x80000005 and 0x80000006. (get_cpu_cache): New function to fetch cache info. (sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call get_cpu_cache for new _SC_* cache requests. (SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE. (get_phys_pages(void)): Call get_phys_pages(int). * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * new-features.xml (ov-new2.3): Document sysconf cache addition. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
return get_phys_pages (_SC_PHYS_PAGES);
}
extern "C" long
get_avphys_pages (void)
{
return get_avphys (_SC_AVPHYS_PAGES);
}
extern "C" int
sysinfo (struct sysinfo *info)
{
unsigned long long uptime = 0ULL, totalram = 0ULL, freeram = 0ULL,
totalswap = 0ULL, freeswap = 0ULL;
MEMORYSTATUSEX memory_status;
PSYSTEM_PAGEFILE_INFORMATION spi = NULL;
ULONG sizeof_spi = 512;
2013-04-23 11:44:36 +02:00
PSYSTEM_TIMEOFDAY_INFORMATION stodi = NULL;
const ULONG sizeof_stodi = sizeof (SYSTEM_TIMEOFDAY_INFORMATION);
NTSTATUS status = STATUS_SUCCESS;
winpids pids ((DWORD) 0);
if (!info)
{
set_errno (EFAULT);
return -1;
}
2013-04-23 11:44:36 +02:00
stodi = (PSYSTEM_TIMEOFDAY_INFORMATION) malloc (sizeof_stodi);
status = NtQuerySystemInformation (SystemTimeOfDayInformation, (PVOID) stodi,
sizeof_stodi, NULL);
if (NT_SUCCESS (status))
uptime = (stodi->CurrentTime.QuadPart - stodi->BootTime.QuadPart)
/ 10000000ULL;
else
debug_printf ("NtQuerySystemInformation(SystemTimeOfDayInformation), "
2013-04-23 11:44:36 +02:00
"status %y", status);
if (stodi)
free (stodi);
memory_status.dwLength = sizeof (MEMORYSTATUSEX);
GlobalMemoryStatusEx (&memory_status);
totalram = memory_status.ullTotalPhys / wincap.page_size ();
freeram = memory_status.ullAvailPhys / wincap.page_size ();
spi = (PSYSTEM_PAGEFILE_INFORMATION) malloc (sizeof_spi);
if (spi)
{
status = NtQuerySystemInformation (SystemPagefileInformation, (PVOID) spi,
sizeof_spi, &sizeof_spi);
if (status == STATUS_INFO_LENGTH_MISMATCH)
{
free (spi);
spi = (PSYSTEM_PAGEFILE_INFORMATION) malloc (sizeof_spi);
if (spi)
status = NtQuerySystemInformation (SystemPagefileInformation,
(PVOID) spi, sizeof_spi,
&sizeof_spi);
}
}
if (!spi || !NT_SUCCESS (status))
{
debug_printf ("NtQuerySystemInformation(SystemPagefileInformation), "
2013-04-23 11:44:36 +02:00
"status %y", status);
totalswap = (memory_status.ullTotalPageFile - memory_status.ullTotalPhys)
/ wincap.page_size ();
freeswap = (memory_status.ullAvailPageFile - memory_status.ullTotalPhys)
/ wincap.page_size ();
}
else
{
PSYSTEM_PAGEFILE_INFORMATION spp = spi;
do
{
totalswap += spp->CurrentSize;
freeswap += spp->CurrentSize - spp->TotalUsed;
}
while (spp->NextEntryOffset
&& (spp = (PSYSTEM_PAGEFILE_INFORMATION)
((char *) spp + spp->NextEntryOffset)));
}
if (spi)
free (spi);
info->uptime = (long) uptime;
info->totalram = (unsigned long) totalram;
info->freeram = (unsigned long) freeram;
info->totalswap = (unsigned long) totalswap;
info->freeswap = (unsigned long) freeswap;
info->procs = (unsigned short) pids.npids;
info->mem_unit = (unsigned int) wincap.page_size ();
/* FIXME: unsupported */
info->loads[0] = 0UL;
info->loads[1] = 0UL;
info->loads[2] = 0UL;
info->sharedram = 0UL;
info->bufferram = 0UL;
info->totalhigh = 0UL;
info->freehigh = 0UL;
return 0;
}