64 bit Windows started out with a 44 bit address space due to a
restriction of the AMD64 CPUs at the time. Starting with Windows
8.1, these CPUs are not supported anymore and Windows switched to
the full 48 bit address space supported by AMD64.
Cygwin didn't follow suit yet so mmaps are still restricted to
the lower 44 bit address space. Fix that by using a system-specific
upper address for mmap allocations, 44 bit up to Windows 8, 48 bit
starting with Windows 8.1.
While at it, move the heap by another 8 Gigs to leave some space
for a potential extension of DLL address space, and restrict the
mmap lower address so the heap can grow to 32 Gigs before colliding
with mmaps.
- Add 24 bit color support using xterm compatibility mode in
Windows 10 1703 or later.
- Add fake 24 bit color support for legacy console, which uses
the nearest color from 16 system colors.
NetUserGetGroups and NetUserGetLocalGroups sometimes take a lot of time
(up to more than 2 mins) for no apparent reason.
Call s4uauth to generate an identification token for the user and fetch
the group list from there. This is *much* faster.
Keep the old code only for the sake of WOW64 on Vista and Windows 7,
which don't implement MsV1_0S4ULogon.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
- Exec'ed/spawned processes don't need PROCESS_DUP_HANDLE. Remove that
permission from the parent handle.
- PROCESS_QUERY_LIMITED_INFORMATION doesn't work for Windows 7 if the
process is started as a service. Add PROCESS_QUERY_INFORMATION for
pre-Windows 8 in that case.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
While FileRenameInformationEx is defined starting with Windows
10 1709 per MSDN, it only starts working in W10 1809, apparently.
Users of 1803 report "Function not implemented".
Introduce wincap_10_1809 and change the version check in
wincapc::init accordingly. Split has_posix_file_info into
has_posix_unlink_semantics and has_posix_rename_semantics.
Enable the latter only starting with W10 1809.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Various new file info class members adding important POSIX semantics
have been added with W10 1709. We may want to utilize them, so add
a matching wincaps.
Rearrange checking the W10 build number to prefer the latest builds
over the older builds. Rename wincap_10 to wincap_10_1507 for
enhanced clarity.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
- Drop hires_[nm]s clocks, rename hires.h to clock.h.
- Implement clk_t class as an extensible clock class in new file clock.cc.
- Introduce get_clock(clock_id) returning a pointer to the clk_t instance
for clock_id. Provide the following methods along the lines of the former
hires classes:
void clk_t::nsecs (struct timespec *);
ULONGLONG clk_t::nsecs ();
LONGLONG clk_t::usecs ();
LONGLONG clk_t::msecs ();
void clk_t::resolution (struct timespec *);
- Add CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_RAW, CLOCK_MONOTONIC_COARSE
and CLOCK_BOOTTIME clocks.
- Allow clock_nanosleep, pthread_condattr_setclock and timer_create to use
all new clocks (both clocks should be usable with a small tweak, though).
- Bump DLL major version to 2.12.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Convert sys_privs to const struct with TOKEN_PRIVILEGES layout.
Drop function get_system_priv_list. Just use pointer to sys_privs.
Dropping max_sys_priv from wincaps requires to make sure that the
bitfield is 8 byte aligned on x86_64, otherwise gcc (5.3 only?)
apparently breaks access to the bitfield (off by 4 bytes).
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause.
Everything else stays under GPLv3+.
New Linking Exception exempts resulting executables from LGPLv3 section 4.
Add CONTRIBUTORS file to keep track of licensing.
Remove 'Copyright Red Hat Inc' comments.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* sec_auth.cc (get_token_group_sidlist): Drop auth_luid and
auth_pos parameter. Remove code adding a logon SID.
(get_initgroups_sidlist): Drop auth_luid and auth_pos parameter.
Drop in call to get_token_group_sidlist. Accommodate in callers.
(get_setgroups_sidlist): Ditto.
(create_token): Explicitely set auth_luid to ANONYMOUS_LOGON_LUID
or LOCALSERVICE_LUID depending on OS. Explain why.
Remove handling of logon SID since we don't generate one anymore.
(lsaauth): Drop now unused local variable auth_luid and auth_pos.
* wincap.h (wincaps::has_broken_whoami): New element.
* wincap.cc: Implement above element throughout.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Observed running hexchat under X. For some reason the call to
LoadLibraryEx(..., LOAD_LIBRARY_SEARCH_SYSTEM32) in dll_load
hangs when trying to autoload MsgWaitForMultipleObjectsEx in
select.cc after hexchat forks to run DNS calls. Dropping the
call and just using full paths as in 2.3.1 fixes the issue.
* autoload.cc (dll_load): Drop call to LoadLibraryEx with
LOAD_LIBRARY_SEARCH_SYSTEM32 flag.
* wincap.h (wincaps::has_load_lib_search_flags): Remove.
* wincap.cc (wincaps::has_load_lib_search_flags): Drop handling
this flag.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* autoload.cc (dll_load): Move safe loading from std_dll_init here.
Add code to handle systems supporting LOAD_LIBRARY_SEARCH flags.
Add comments to explain what the code is doing. Fix up comment
preceeding this function.
(std_dll_init): Move safe loading code to dll_load.
* wincap.h (wincaps::has_load_lib_search_flags): New element.
* wincap.cc: Implement above element throughout.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* dcrt0.cc: Semi-revert commit 12743c2d5d.
(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>
* dcrt0.cc (dll_crt0_0): On 64 bit, set wow64_needs_stack_adjustment
if not started from a 64 bit process.
(_dll_crt0): Enable wow64_needs_stack_adjustment branch on 64 bit
as well. Remove 64 bit only code. Introduce CREATE_STACK and
FIX_STACK macros to conditionalize the code. Rearrange and
partially rewrite comments.
* wincap.h (wincaps::has_3264_stack_broken): New element.
* wincap.cc: Implement above element throughout.
(wincapc::init): Set has_3264_stack_broken to false on 32 bit.
* wow64.cc: Enable functionality on 64 bit architecture, except for
wow64_revert_to_original_stack. Enhance comments to explain.
(wow64_eval_expected_main_stack): Make 64 bit clean.
(wow64_test_for_64bit_parent): Ditto.
* wow64.h: Export wow64_revert_to_original_stack on 32 bit only,
everything else on all architectures.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* fhandler_process.cc (heap_info::fill_if_match): Return NULL, not 0.
(thread_info::fill_if_match): Ditto.
(thread_info::fill_if_match): New method to extract TEB info from
PEB/TEB region since W10 1511.
(format_process_maps): Drop outdated FIXME comment. Add code to handle
PEB/TEB region since W10 1511.
* mmap.cc (posix_madvise): Align comment to new W10 1511 version.
* wincap.h (wincaps::has_new_pebteb_region): New element.
* wincap.cc: Implement above element throughout.
(wincap_10_1511): New global wincaps to support Windows 10 since 1511.
(wincapc::init): Use wincap_10_1511 for W10 builds >= 10586.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* autoload.cc (GetLogicalProcessorInformationEx): Import.
(SetThreadGroupAffinity): Import.
* fhandler_proc.cc (add_size): New macro.
(get_msb): New inline function.
(mask_bits): Ditto.
(format_proc_cpuinfo): Drop handling of old CPUs. Check if we're
running on a OS version supporting porcessor groups. If so, use
SetThreadGroupAffinity to set thread affinity. Improve cache info
to include 3rd level cache on Intel CPUs. Improve multi core info.
* wincap.h (wincaps::has_processor_groups): New element.
* wincap.cc: Implement above element throughout.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* autoload.cc (SetThreadStackGuarantee): Import.
* cygtls.h (struct _cygtls): Replace thread_context with a ucontext_t
called context.
* exceptions.cc (exception::handle): Exit from process via signal_exit
in case sig_send returns from handling a stack overflow SIGSEGV.
Explain why.
(dumpstack_overflow_wrapper): Thread wrapper to create a stackdump
from another thread.
(signal_exit): Fix argument list to reflect three-arg signal handler.
In case we have to create a stackdump for a stack overflow condition,
do so from a separate thread. Explain why.
(sigpacket::process): Don't run signal_exit on alternate stack.
(altstack_wrapper): Wrapper function to do stack correction when
calling the signal handler on an alternate stack to handle a stack
overflow. Make sure to have lots of comments.
(_cygtls::call_signal_handler): Drop local context variable to reduce
stack pressure. Use this->context instead. Change inline assembler
to call altstack_wrapper.
(_cygtls::signal_debugger): Accommodate aforementioned change to
struct _cygtls.
* tlsoffset.h: Regenerate.
* tlsoffset64.h: Regenerate.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
(wincaps): Drop has_physical_mem_access.
(wincap_10): New global wincaps to support Windows 10.
(wincapc::init): Use wincap_10 for version >= 6.4 and as default.
* wincap.h (wincaps::has_physical_mem_access): remove.
* wincap.cc (wincapc::init): Rather than GetVersionEx, call
RtlGetVersion which is not crippled by missing Windows 8.1 manifest.
* wincap.h (wincapc): Change type of version to RTL_OSVERSIONINFOEXW.
Align formatting of all class members.
* times.cc (GetSystemTimePreciseAsFileTime): Temporarily declare here
to workaround missing definition in 32 bit w32api headers.
(get_system_time): New always inline function to call either
GetSystemTimePreciseAsFileTime or GetSystemTimeAsFileTime on a per OS
basis. Call throughout instead of GetSystemTimeAsFileTime.
* wincap.h (wincaps::has_precise_system_time): New element.
* wincap.cc: Implement above element throughout.
thread stack on systems not freeing it by themselves.
* wincap.h (wincaps::terminate_thread_frees_stack): New element.
* wincap.cc: Implement above element throughout.
Corinna Vinschen
Takashi Yano
Christopher Faylor