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30 hoursCygwin: doc: add note about raw devices of BitLocker partitionsHEADmastermainChristian Franke1-0/+6
Signed-off-by: Christian Franke <christian.franke@t-online.de>
2 daysCygwin: configure: add possibility to skip build of cygserver and utilsRadek Bartoň4-3/+48
This patch adds configure options allowing to disable build of cygserver and Cygwin utilities. This is useful when one needs to build only cygwin1.dll and crt0.o with stage1 compiler that is not yet capable of linking executables as it is missing cygwin1.dll and crt0.o. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
2 daysnewlib: add dummy implementations of fe{get,set}prec for Aarch64 CygwinRadek Bartoň5-0/+96
This patch introduces dummy implementation of fegetprec and fsetprec for Cygwin build as those symbols are being exported by cygwin1.dll and AArch64 do not support changing floating point precision at runtime. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
5 daysCygwin: clocks: read leap secs from /etc/leapsecs on older systemsCorinna Vinschen1-49/+39
Systems prior to W10 1803 don't have the leapsecs registry key HKLM\SYSTEM\CurrentControlSet\Control\LeapSecondInformation and don't handle leap seconds at all. Given that new leap seconds are a rather seldom, irregular event, drop reading from /usr/share/zoneinfo/leapseconds. Just read the same leap second records from a file /etc/leapsecs as stored in the LeapSeconds registry value on newer systems instead. As a sidenote, the code reading from /usr/share/zoneinfo/leapseconds was wrong anyway, because it didn't take the timestamps into account. Given IERS publishes new leap seconds about 6 months before they occur, CLOCK_TAI would have been one second off for up to 6 months. /etc/leapsecs doesn't exist yet, so we just default to 37 secs. If new leap seconds get provided for newer systems, make sure to provide the /etc/leapsecs file as part of the Cygwin distro with identical entries. Fixes: 2abb929f0ad2 ("Cygwin: clocks: Implement CLOCK_TAI") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
5 daysCygwin: sys/termios.h: define struct winsize before using itCorinna Vinschen2-8/+10
Long-standing bug in the sys/termios.h file which, for some reason, has never been encountered before. STC: #include <sys/termios.h> int main() { struct winsize win; tcgetwinsize (0, &win); } Result with gcc 12.4.0: termios-bug.c: In function ‘main’: termios-bug.c:7:20: warning: passing argument 2 of ‘tcgetwinsize’ from incompatible pointer type [-Wincompatible-pointer-types] 7 | tcgetwinsize (0, &win); | ^~~~ | | | struct winsize * In file included from termios-bug.c:1: /usr/include/sys/termios.h:304:42: note: expected ‘struct winsize *’ but argument is of type ‘struct winsize *’ 304 | int tcgetwinsize(int fd, struct winsize *winsz); | ~~~~~~~~~~~~~~~~^~~~~ This warning apparently becomes an error with C23. The reason is that struct winsize is defined in sys/termios.h after using it as argument type in function declarations. From the compil;er perspective it's now a different type , regardless of having the same name. Move declaration of struct winsize up so it's defined before being used. Reported-by: Zachary Santer <zsanter@gmail.com> Suggested-by: Zachary Santer <zsanter@gmail.com> Addresses: https://cygwin.com/pipermail/cygwin/2025-July/258474.html Fixes: 1fd5e000ace55 ("import winsup-2000-02-17 snapshot") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
6 dayslibc/include/sys/stat.h: Adjust for RTEMS MIPSJoel Sherrill1-2/+3
The commit cited below introduced changes which included conditionals strictly on __mips__. This ignored tailoring for any environment on MIPS except that targeted by the author of the change. This patch just fixes this code for RTEMS. commit 467a2bdf17ad376dafada9f1734784f4611fa6fd Author: Jovan Dmitrović <jovan.dmitrovic@htecgroup.com> Date: Wed Jun 11 10:11:33 2025 +0200 mips: Implement MIPS HAL and UHI Implement abstract interface for MIPS, including unified hosting interface (UHI). Signed-off-by: Jovan Dmitrović <jovan.dmitrovic@htecgroup.com>
6 daysnvptx: Change 'read' and 'write' to 'ssize_t' return typeArijit Kumar Das3-2/+8
This commit changes the return type of the read() and write() syscalls for nvptx to ssize_t. This would allow large files to be handled properly by these syscalls in situations where the read/write buffer length exceeds INT_MAX, for example. This also makes the syscall signatures fully complaint with their current POSIX specifications. We additionally define two macros: '_READ_WRITE_RETURN_TYPE' as _ssize_t and '_READ_WRITE_BUFSIZE_TYPE' as __size_t in libc/include/sys/config.h under __nvptx__ for consistency. Signed-off-by: Arijit Kumar Das <arijitkdgit.official@gmail.com>
6 daysCygwin: clocks: read leap seconds from registryCorinna Vinschen1-7/+73
Windows 10 1803 introduced leap seconds support in 2018. The OS always starts at 37 leap secs. Additional leap second timestamps are added to the registry key HKLM\SYSTEM\CurrentControlSet\Control\LeapSecondInformation, value LeapSeconds. If the key exists, read the leap second timestamps from this value, otherwise fallback to reading /usr/share/zoneinfo/leapseconds. Note that we might change the file we read from yet, but that's no part of this patch. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
6 daysCygwin: reg_key: add a method get_binary() to fetch REG_BINARY dataCorinna Vinschen2-0/+41
This patch is required for a followup patch fetching the leap seconds info from the registry starting with Windows 10 1803. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
6 daysCygwin: cygcheck: port to AArch64Radek Bartoň1-3/+11
This patch ports `winsup/utils/mingw/cygcheck.cc` to AArch64: - Adds arch=aarch64 to packages API URL. - Ports dll_info function. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
6 daysnewlib: libc: update asmdefs.h compatible with Cygwin AArch64Radek Bartoň16-108/+54
This patch synchronizes newlib/libc/machine/aarch64/asmdefs.h header with version from https://github.com/ARM-software/optimized-routines/commit/4352245388a55a836f3ac9ac5907022c24ab8e4c commit that added support for AArch64 Cygwin. This version of the header removed PTR_ARG and SIZE_ARG macros as ILP32 was deprecated which introduced changes in many .S files so the patch contains removal of usages of those macros. On top of that, setjmp.S and rawmemchr.S were refactored to use ENTRY/ENTRY_ALIGN and END macros. ` Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
7 daysCygwin: testsuite: link cygload with --disable-high-entropy-vaJeremy Drake1-1/+1
This is a mingw program meant to demonstrate loading the Cygwin dll in a non-Cygwin process, but the Cygwin dll still initializes the cygheap on load in that case. Without --disable-high-entropy-va, Windows may occasionally locate the PEB, TEB, and/or stacks in the address space that Cygwin tries to reserve for the cygheap, resulting in a failure. Fixes: 60675f1a7eb2 ("Cygwin: decouple shared mem regions from Cygwin DLL") Signed-off-by: Jeremy Drake <cygwin@jdrake.com>
7 daysCygwin: clocks: Implement CLOCK_TAICorinna Vinschen6-5/+102
CLOCK_TAI is like CLOCK_REALTIME ignoring leap secs. Right now, 2025, it has a positive 37 secs offset from CLOCK_REALTIME. Given the unpredictability of adding leap secs by the IERS (International Earth Rotation and Reference Systems Service), we also add a mechanism to read the current leap secs offset from /usr/share/zoneinfo/leapseconds, part of the tzdata package. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
7 daysnewlib: fclose: Use sfp lock while fp lock is activeTakashi Yano1-1/+2
With the commit 656df313e08a, if a thread acquires sfp lock after another thread calls fclose() and fp lock is acquired, the first thread falls into deadlock if it tries to acquire fp lock. This can happen if the first thread calls __sfp_lock_all() while the second thread calls fclose(). This patch reverts the changes for newlib/libc/stdio/fclose.c in the commit 656df313e08a. Addresses: https://cygwin.com/pipermail/cygwin/2025-June/258323.html Fixes: 656df313e08a ("* libc/stdio/fclose.c: Only use sfp lock to guard non-atomic changes of flags and fp lock.") Reported-by: Takashi Yano <takashi.yano@nifty.ne.jp> Reviewed-by: Corinna Vinschen <corinna@vinschen.de> Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
7 daysCygwin: CI: deploy full set of documentation files from install directoryJon Turney1-2/+2
Deploy (what is now a full set of) documentation files from install directory.
7 dayslibc/time: Add CLOCK_TAISebastian Huber1-0/+6
For _GNU_VISIBLE, provide the CLOCK_TAI clock identifier for the International Atomic Time. Use the value specified by glibc and Linux. Add _BSD_VISIBLE given FreeBSD also provides this clock identifier.
7 daysCygwin: add clock bugfixes to 3.6.5 release messageCorinna Vinschen1-0/+4
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
7 daysCygwin: POSIX timer: handle TIMER_ABSTIME correctly for all realtime clocksCorinna Vinschen1-1/+3
Add CLOCK_REALTIME_COARSE and CLOCK_REALTIME_ALARM to the clocks allowing an absolute timeout value to be used as such in NtSetTimer. Fixes: c05df02725c59 ("Cygwin: implement extensible clock interface") Fixes: 013e2bd9ecf85 ("Cygwin: posix timers: Add support for CLOCK_REALTIME_ALARM/CLOCK_BOOTTIME_ALARM") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
7 daysCygwin: clocks: use InterlockedCompareExchange64Corinna Vinschen1-6/+3
The clock init functions checked timer ticks/period for 0 and then called InterlockedExchange64 if the value was still 0. This is not quite as atomic as it was supposed to be. Use InterlockedCompareExchange64 instead. Fixes: 2b72887ac834b ("Cygwin: clocks: fix a hang on pre-Windows 10 machines") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
8 daysCygwin: doc: Install miscellaneous website filesJon Turney1-3/+7
This gives us a full set of the built documentation files in the install directory, which can then be appropriately filtered for packaging or deploying to website, as required. Again, there will be a separate change to the cygwin packaging to avoid including theses files in the cygwin-doc package. Also, add matching uninstall rules.
8 daysCygwin: doc: Install FAQ as wellJon Turney1-1/+8
We don't currrently deploy the CSS file to the website, because the FAQ doesn't get installed, so instead we copy all the doc files from the build directory. That omits docbook.css, which is installed from directly from the source directory. (We just happen to have a similar file lying around on the webserver). Instead, just install the FAQ. There will be a separate change to the cygwin packaging to avoid including the FAQ in the cygwin-doc package. (I guess we'd rather people go online for that, to ensure they have the latest version?) Also, add matching uninstall rules.
9 daysCygwin: gendef: stub implementations of routines for AArch64Radek Bartoň1-1/+41
This patch aspires to provide only minimal changes to `winsup/cygwin/scripts/gendef` allowing to pass the AArch64 build. It does not provide any implementations of the generated routines. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
9 daysCygwin: doc: warn about unprivileged access to raw devicesChristian Franke1-1/+9
Raw devices of partitions may be accessible from unprivileged processes, for example if connected via USB. Signed-off-by: Christian Franke <christian.franke@t-online.de>
9 daysCygwin: signal: make context structures registers handling portableRadek Bartoň6-35/+135
This patch extracts macros from winsup/cygwin/exceptions.cc serving for portable register access to context structures into a separate local header winsup/cygwin/local_includes/register.h and implements their AArch64 counterparts. Then, it adds AArch64 declaration of __mcontext structure based on mingw-w64-headers/include/winnt.h header to winsup/cygwin/include/cygwin/singal.h header. Then, it includes the registers.h header and uses the macros where applicable, namely at: - winsup/cygwin/exceptions.cc - winsup/cygwin/profil.c - winsup/cygwin/tread.cc The motivation is to make usage of the context structures portable without unnecessary #if defined(__x86_64__) while implementations of signal handling code will be developed later, e.g. implementation of makecontext. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
9 daysCygwin: malloc_wrapper: port to AArch64Evgeny Karpov1-0/+14
Implements import_address function by decoding adr AArch64 instructions to get target address. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
9 daysCygwin: add dummy implementation of _fe_nomask_envRadek Bartoň1-0/+10
_fe_nomask_env is exported by cygwin.din but not used at all for AArch64. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
9 daysCygwin: dumper: port to AArch64Radek Bartoň1-1/+3
This patch allows to build winsup/utils/dumper.cc for AArch64 by handling target architecture condition in dumper::init_core_dump. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
9 daysCygwin: profiler: port to AArch64Radek Bartoň1-1/+3
This patch allows to build winsup/utils/profiler.cc for AArch64 by handling target architecture condition in find_text_section function implementation. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
9 daysCygwin:testsuite: winchild: drop unused variableCorinna Vinschen1-1/+0
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
9 daysCygwin: mkimport: port to support AArch64Radek Bartoň1-0/+11
This patch ports winsup/cygwin/scripts/mkimport script to AArch64, namely implements relocation to the imp_sym. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
10 daysCygwin: pty: TCIFLUSH also clears readahead buffer in the masterTakashi Yano3-5/+30
Previously, TCIFLUSH flushed the pipe to_slave which transfers input from master to slave. However, this was not sufficiant. The master side holds input data before accept_input() in the read-ahead buffer. So, if input data before 'enter' key can be leaked into slave input after TCIFLUSH. With this patch, TCIFLUSH requests master to flush read-ahead buffer via master control pipe. To realize this, add cmd filed to pipe_request structure so that the flush request can be distinguished from existing pipe handle request. Addresses: https://cygwin.com/pipermail/cygwin/2025-July/258442.html Fixes: 41946df6111b (" (fhandler_tty_slave::tcflush): Implement input queue flushing by calling read with NULL buffer.") Reported-by: Christoph Reiter <reiter.christoph@gmail.com> Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
12 daysCygwin: winchild: fix missing stdlib.hRadek Bartoň1-1/+1
The posix_spawn/winchild test was added recently by 2af1914b6ad673a2041cf94cc8e78e1bdec57a27 commit. It fails to build for AArch64 due to missing stdlib.h header where malloc and free functions are defined. This patch fixes the missing header. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
14 daysnewlib: Regenerate configuration filesm fally1-26/+26
Regenerate the configuration files since a file was replaced in the RISC-V port, and one other file was renamed. Reviewed-by: Christian Herber <christian.herber@oss.nxp.com> Signed-off-by: m fally <marlene.fally@gmail.com>
14 daysRISC-V: memmove() speed optimized: Call memcpy()m fally1-67/+93
Redirect to memcpy() if the memory areas of source and destination do not overlap. Only redirect if length is > SZREG in order to reduce overhead on very short copies. Signed-off-by: m fally <marlene.fally@gmail.com>
14 daysRISC-V: memmove() speed optimized: Align source addressm fally1-50/+135
If misaligned accesses are slow or prohibited, either source or destination address are unaligned and the number of bytes to be copied is > SZREG*2, align the source address to xlen. This speeds up the function in the case where at least one address is unaligned, since now one word (or doubleword for rv64) is loaded at a time, therefore reducing the amount of memory accesses necessary. We still need to store back individual bytes since the destination address might (still) be unaligned after aligning the source. The threshold of SZREG*2 was chosen to keep the negative effect on shorter copies caused by the additional overhead from aligning the source low. This change also affects the case where both adresses are xlen- aligned, the memory areas overlap destructively, and length is not a multiple of SZREG. In the destructive-overlap case, the copying needs to be done in reversed order. Therefore the length is added to the addresses first, which causes them to become unaligned. Reviewed-by: Christian Herber <christian.herber@oss.nxp.com> Signed-off-by: m fally <marlene.fally@gmail.com>
14 daysRISC-V: memmove() speed optimized: Add loop-unrollingm fally1-9/+48
Add loop-unrolling for the case where both source and destination address are aligned in the case of a destructive overlap, and increase the unroll factor from 4 to 9 for the word-by-word copy loop in the non-destructive case. This matches the loop-unrolling done in memcpy() and increases performance for lenghts >= SZREG*9 while almost not at all degrading performance for shorter lengths. Reviewed-by: Christian Herber <christian.herber@oss.nxp.com> Signed-off-by: m fally <marlene.fally@gmail.com>
14 daysRISC-V: memmove() speed optimized: Replace macros and use fixed-width typesm fally1-25/+35
Replace macros with static inline functions or RISC-V specifc macros in order to keep consistency between all functions in the port. Change data types to fixed-width and/or RISC-V specific types. Reviewed-by: Christian Herber <christian.herber@oss.nxp.com> Signed-off-by: m fally <marlene.fally@gmail.com>
14 daysRISC-V: memmove() speed optimized: Add implementationm fally4-15/+100
Copy the common implementation of memmove() to the RISC-V port. Rename memmove.S to memmove-asm.S to keep naming of files consistent between functions. Update Makefile.inc with the changed filenames. Reviewed-by: Christian Herber <christian.herber@oss.nxp.com> Signed-off-by: m fally <marlene.fally@gmail.com>
2025-07-09Cygwin: testsuite: test posix_spawn_file_actions_addopen with O_CLOEXECJeremy Drake1-0/+10
This was previously not handled correctly by newlib. Signed-off-by: Jeremy Drake <cygwin@jdrake.com>
2025-07-09posix_spawn: preserve FD flags when processing FAE_OPENJeremy Drake1-3/+11
According to the POSIX documentation, "when the new process image is executed, any file descriptor (from this new set) which has its FD_CLOEXEC flag set shall be closed (see posix_spawn())." The "new set" is after processing the file actions, so if addopen had the O_CLOEXEC flag set the descriptor should be closed after the exec. The adddup2 docs, by contrast, specify that the flag should be cleared, even if dup2 wouldn't have done so due to the specified file descriptors being equal. Add a comment to that effect. Addresses: https://sourceware.org/pipermail/newlib/2025/021968.html Fixes: c7c1a1ca1b ("2013-10-01 Petr Hosek <phosek@chromium.org>") Signed-off-by: Jeremy Drake <cygwin@jdrake.com>
2025-07-09Cygwin: CI: cygstress: remove 'filerace', 'flock' and 'fork' from CIChristian Franke1-3/+4
The 'filerace' test may run longer than the watchdog timeout. 'flock' and 'fork' may leave processes behind for some unknown reason. Signed-off-by: Christian Franke <christian.franke@t-online.de>
2025-07-08Cygwin: open: only fix file attributes when trying to create fileCorinna Vinschen2-2/+5
Only try to fix the cached DOS attributes if the caller actually tried to create the file. Otherwise the fixup code is called even in cases where we open the file with minimal query access bits and NtQueryInformationFile() could fail with STATUS_ACCESS_DENIED and the new cached DOS attributes are wrong again. Fixes: 37c49decc835f ("Cygwin: open: only fix up cached DOS file attributes for on-disk files") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2025-07-07Cygwin: spawn: apply PID_NEW_PG flag to spawned childJeremy Drake1-6/+11
Previously, it was always applied to "myself", which is only appropriate in the case of _P_OVERLAY (aka exec). Apply the flag to "myself" only in that case, and apply it to the new child instead in other cases. Also, clear the flag from "myself" in the case of a failed exec. Fixes: 8d8724ee1b5a ("Cygwin: pty: Fix Ctrl-C handling further for non-cygwin apps.") Signed-off-by: Jeremy Drake <cygwin@jdrake.com>
2025-07-07Cygwin: define OUTPUT_FORMAT and SEARCH_DIR for AArch64Radek Bartoň1-1/+3
This patch defines binutils output binary format for AArch64 which is pei-aarch64-little. Since =/usr/lib/w32api resolves to $SYSROOT/usr/lib/w32api and Fedora cross-build takes libraries from /usr/aarch64-pc-cygwin/sys-root/usr/lib/w32api, the SEARCH_DIR("/usr/x86_64-pc-cygwin/lib/w32api"); is redundant and can be removed. Signed-off-by: Radek Bartoň <radek.barton@microsoft.com>
2025-07-05Cygwin: CI: cygstress: add ability to run all tests multiple timesChristian Franke1-28/+135
Add options '-e' and '-r' to control error behavior and number of test runs. Signed-off-by: Christian Franke <christian.franke@t-online.de>
2025-07-05Cygwin: CI: cygstress: update for stress-ng 0.19.02 and current CygwinChristian Franke1-29/+35
Signed-off-by: Christian Franke <christian.franke@t-online.de>
2025-07-04libc: mips: fix strcmp bug for little endian targetsFaraz Shahbazker1-2/+5
strcmp gives incorrect result for little endian targets under the following conditions: 1. Length of 1st string is 1 less than a multiple of 4 (i.e len%4=3) 2. First string is a prefix of the second string 3. The first differing character in the second string is extended ASCII (that is > 127) Signed-off-by: Jovan Dmitrović <jovan.dmitrovic@htecgroup.com>
2025-07-04libgloss: mips: UHI linker scripts fail to link with _isr_vec_count=1Faraz Shahbazker3-6/+6
This _isr_vec_count=1 is prevalent in MIPS Open FGPA examples. Looks like forcing _isr_vec_007 in to the link was a mistake and we always intended to only include the top-level _isr_vec symbol. Signed-off-by: Jovan Dmitrović <jovan.dmitrovic@htecgroup.com>
2025-07-04libgloss: mips: g++ exception handling failure on o32 elf targetsFaraz Shahbazker3-3/+22
The compiler driver positions the linker script at the end of the linker command-line, after crtend.o. As a result, any INPUT objects and archive GROUPs introduced by the linker script end up after crtend.o. This messes up the end-of-frame marker provided by crtend.o This has always been a problem, but a recent binutils update to clean-up redundant NULL markers in .eh_frame exposes it as a execution failure in exception-handling tests. This patch re-orders .eh_frame in all linker scripts so that the one from crtend.o is placed last. An alternative approach would be to fix the compiler driver to put the linker script before the ENDFILE spec. Signed-off-by: Jovan Dmitrović <jovan.dmitrovic@htecgroup.com>
2025-07-04libc: mips: Improve performance of strcmp implementationFaraz Shahbazker1-79/+123
Improve `strcmp` by using `ext` instruction, if available. Signed-off-by: Jovan Dmitrović <jovan.dmitrovic@htecgroup.com>