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2021-12-30newlib: Regenerate autotools filesJon Turney
2021-12-30newlib: Remove automake option 'cygnus'Jon Turney
The 'cygnus' option was removed from automake 1.13 in 2012, so the presence of this option prevents that or a later version of automake being used. A check-list of the effects of '--cygnus' from the automake 1.12 documentation, and steps taken (where possible) to preserve those effects (See also this thread [1] for discussion on that): [1] https://lists.gnu.org/archive/html/bug-automake/2012-03/msg00048.html 1. The foreign strictness is implied. Already present in AM_INIT_AUTOMAKE in newlib/acinclude.m4 2. The options no-installinfo, no-dependencies and no-dist are implied. Already present in AM_INIT_AUTOMAKE in newlib/acinclude.m4 Future work: Remove no-dependencies and any explicit header dependencies, and use automatic dependency tracking instead. Are there explicit rules which are now redundant to removing no-installinfo and no-dist? 3. The macro AM_MAINTAINER_MODE is required. Already present in newlib/acinclude.m4 Note that maintainer-mode is still disabled by default. 4. Info files are always created in the build directory, and not in the source directory. This appears to be an error in the automake documentation describing '--cygnus' [2]. newlib's info files are generated in the source directory, and no special steps are needed to keep doing that. [2] https://lists.gnu.org/archive/html/bug-automake/2012-04/msg00028.html 5. texinfo.tex is not required if a Texinfo source file is specified. (The assumption is that the file will be supplied, but in a place that automake cannot find.) This effect is overriden by an explicit setting of the TEXINFO_TEX variable (the directory part of which is fed into texi2X via the TEXINPUTS environment variable). 6. Certain tools will be searched for in the build tree as well as in the user's PATH. These tools are runtest, expect, makeinfo and texi2dvi. For obscure automake reasons, this effect of '--cygnus' is not active for makeinfo in newlib's configury. However, there appears to be top-level configury which selects in-tree runtest, expect and makeinfo, if present. So, if that works as it appears, this effect is preserved. If not, this may cause problem if anyone is building those tools in-tree. This effect is not preserved for texi2dvi. This may cause problems if anyone is building texinfo in-tree. If needed, explicit checks for those tools looking in places relative to $(top_srcdir)/../ as well as in PATH could be added. 7. The check target doesn't depend on all. This effect is not preseved. The check target now depends on the all target. This concern seems somewhat academic given the current state of the testsuite. Also note that this doesn't touch libgloss.
2021-12-30newlib: Regenerate autotools filesJon Turney
2021-12-30newlib: Make effects of 'cygnus' explicitJon Turney
Add all the effects of 'cygnus' for which there exists an explicit way to request that behaviour: * Implied foreign strictness and options no-installinfo, no-dependencies and no-dist are added to AM_INIT_AUTOMAKE in newlib/acinclude.m4. * macro AM_MAINTAINER_MODE is added to newlib/acinclude.m4. * For the implied TEXINFO_TEX of '$(top_srcdir)/../texinfo/texinfo.tex', an explicit TEXINFO_TEX is always relative to $(srcdir), so write the same pathname in that form. This is to prepare for the removal of the automake option '--cygnus'.
2021-12-27Cygwin: fhandler_pipe::get_query_hdl_per_process: avoid a crashKen Brown
NtQueryInformationProcess(ProcessHandleInformation) can return STATUS_SUCCESS with invalid handle data for certain processes ("minimal" processes on Windows 10). This can cause a crash when there's an attempt to access that data. Fix that by setting NumberOfHandles to zero before calling NtQueryInformationProcess. Addresses: https://cygwin.com/pipermail/cygwin-patches/2021q4/011611.html
2021-12-20cygwin: Add cocom and patch to build prerequisites in FAQJon Turney
Add patch, and make cocom unconditional in list of build prerequisites. Even though the products of these tools are checked in, these tools are required when building in a fresh git checkout, presumably due to the order in which git creates the files resulting in timestamps which indicate that the output of rules using these tools are older than the inputs. Addresses: https://cygwin.com/pipermail/cygwin/2021-December/250124.html Also drop a duplicate sentence about 'fetch sources from git'.
2021-12-18Cygwin: Conditionally build documentationJon Turney
Add a configure option '--disable-doc' to disable building of the documentation by the 'all' target. Check for the required tools at configure time, and require them if building documentation is enabled. Even if building the documentation was diabled with '--disable-doc', 'make -C doc' at the top-level can still make the documentation, if the documentation tools were found. If the tools were not found, 'missing' is used to issue a warning about that. Update instructions for building Cygwin appropriately. (Building documentation remains the default to increase the chances of noticing when building the documentation is broken.)
2021-12-15Cygwin: pty: Fix input switching failure.Takashi Yano
- This patch fixes the failure of input switching between io_handle and io_handle_nat. This very rarely happens, however, input is wrongly switched to io_handle_nat even though the non-cygwin app is in the background.
2021-12-14Cygwin: pty: Fix conditions for input transfer again.Takashi Yano
2021-12-14Cygwin: pty: Fix conditions for input transfer.Takashi Yano
- The recent commit "Cygwin: pty: Add missing input transfer when switch_to_pcon_in state." causes regression that rlwrap cannot work with cmd.exe. This patch fixes the issue.
2021-12-13README: configure.in -> configure.acJon Turney
These files were renamed from that long deprecated name in commit 92061799.
2021-12-13Cygwin: Use AS_HELP_STRING for --enable-debuggingJon Turney
Use AS_HELP_STRING in AC_ARG_WITH for --enable-debugging to ensure correct formatting in 'configure --help' output.
2021-12-13Cygwin: pty: Fix Ctrl-C handling further for non-cygwin apps.Takashi Yano
- The recent commit: "Cygwin: pty: Fix Ctrl-C handling for non-cygwin apps in background." causes the problem that cmd.exe is terminated by Ctrl-C even if it is running in pseudo console. This patch fixes the issue.
2021-12-12Cygwin: pipe: Restore blocking mode for cygwin process at startup.topic/pipeTakashi Yano
- Set blocking mode properly at startup of cygwin process. This is needed if the cygwin process is executed from non-cygwin process.
2021-12-12Cygwin: Document that the pipe_byte option is now set by defaultKen Brown
2021-12-12Cygwin: fhandler_pipe::raw_read: minor code cleanupKen Brown
Remove references to STATUS_THREAD_SIGNALED and STATUS_THREAD_CANCELED, which can't occur any more.
2021-12-12Cygwin: pipe: Adopt FILE_SYNCHRONOUS_IO_NONALERT flag for read pipe.Takashi Yano
- With this patch, FILE_SYNCHRONOUS_IO_NONALERT flag is applied to the read pipe so that native C# programs work with cygwin pipe. To handle signals in reading pipe with this flag set, the read pipe itself is always set to nonblocking mode and simulates the blocking behaviour in raw_read(). - Default to byte mode rather than message mode in order to make C# programs work with cygwin pipe. Addresses: https://cygwin.com/pipermail/cygwin/2021-March/247987.html
2021-12-12Cygwin: console: Fix console mode of non-cygwin apps in background.Takashi Yano
- If the non-cygwin app is started in the background in console, the console mode is broken for the app. This patch fixes the issue.
2021-12-12Cygwin: pty: Fix console mode of non-cygwin apps in background.Takashi Yano
- If the non-cygwin app is started in the background in pseudo console, the console mode is broken for the app. This patch fixes the issue.
2021-12-12Cygwin: pty: Fix Ctrl-C handling for non-cygwin apps in background.Takashi Yano
- With pseudo console enabled, if the non-cygwin app is started in the background and put it into the foreground, the process cannot be stopped by Ctrl-C. This patch fixes the issue.
2021-12-12Cygwin: pty: Add missing input transfer when switch_to_pcon_in state.Takashi Yano
- This patch fixes the bug that input is wrongly sent to io_handle_nat rather than io_handle when neither read() nor select() is called after the cygwin app is started from non-cygwin app. This happens only if psuedo console is disabled. Addresses: https://cygwin.com/pipermail/cygwin-patches/2021q4/011587.html
2021-12-11Cygwin: clipboard: Make intent of the code clearer.Takashi Yano
2021-12-11Cygwin: path: Fix path conversion of virtual drive.Takashi Yano
- The last change in path.cc introduced a bug that causes an error when accessing a virtual drive which mounts UNC path such as "\\server\share\dir" rather than "\\server\share". This patch fixes the issue.
2021-12-10newlib: Regenerate all autotools filesJon Turney
Regenerate all aclocal.m4, configure and Makefile.in files.
2021-12-10newlib: Enable automake silent rulesJon Turney
Use AM_SILENT_RULES, to enable automake silent rules (by default), if we are using a version of automake which supports it (>=1.11). Silent rules can be disabled by configuring with '--disable-silent-rules', or invoking 'make V=1'. For ease of reviewing, this patch doesn't contain configure and Makefile.in regeneration. Future work: There are a few compilations which are not silenced by this, as they use custom rules.
2021-12-08Cygwin: Update configure.ac to use AC_CONFIG_HEADERSJon Turney
This avoids warning with autoconf >= 2.70: configure.ac:47: warning: The macro `AC_CONFIG_HEADER' is obsolete. AC_CONFIG_HEADERS has been supported since before autconf 2.59, the minimum version we can be using, controlled by AC_PREREQ.
2021-12-08Cygwin: path: Convert UNC path prefix back to drive letter.Takashi Yano
- When symlink_info::check() is called with the path having drive letter and UNC path is mounted to the drive, the path is replaced with UNC path. With this patch, UNC path prefix is converted back to drive letter. This fixes the issue: https://cygwin.com/pipermail/cygwin/2021-November/250087.html https://cygwin.com/pipermail/cygwin/2021-December/250103.html
2021-12-07Cygwin: clipboard: Fix a bug in read().Takashi Yano
- Fix a bug in fhandler_dev_clipboard::read() that the second read fails with 'Bad address'. Addresses: https://cygwin.com/pipermail/cygwin/2021-December/250141.html
2021-12-03ldtoa: Import gdtoa from OpenBSD.Takashi Yano
- This patch uses gdtoa imported from OpenBSD if newlib configure option "--enable-newlib-use-gdtoa=no" is NOT specified. gdtoa provides more accurate output and faster conversion than legacy ldtoa, while it requires more heap memory.
2021-12-03frexpl: Support smaller long double of LDBL_MANT_DIG == 53.Takashi Yano
- Currently, frexpl() supports only the following cases. 1) LDBL_MANT_DIG == 64 or 113 2) 'long double' is equivalent to 'double' This patch add support for LDBL_MANT_DIG == 53.
2021-12-03Revert "ctype: use less short names in public header"Corinna Vinschen
This patch fixed a problem which isn't in newlib, but in projects incorrectly using symbols from the reserved namespace. This reverts commit 3ba1bd0d9dbc015c14a0aaafcef042f706d1249a.
2021-12-03Cygwin: Fix typo in new-features.xmlTakashi Yano
2021-12-02Cygwin: errno: handle ERROR_CASE_DIFFERING_NAMES_IN_DIRCorinna Vinschen
Rather than special case status code 0xc00004b3, add status and matching error code to ntdll.h and handle it as part of the standard error mapping. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-12-02Cygwin: console: Fix OSC sequence handling.Takashi Yano
- Currently, some OSC escape sequences, such as 'OSC 110 BEL', are not handled correctly. This patch fixes the issue.
2021-11-30Modifying patch from: marian.buschsieweke@ovgu.deJeff Johnston
The code accessing the floating point control/status register, namely #define __cfc1(__fcsr) __asm __volatile("cfc1 %0, $31" : "=r" (__fcsr) does not compile with mips16. This changed the makefile to pass -mno-mips16 to avoid the following compiler error: mips-mti-elf fails with "Error: unrecognized opcode `cfc1 $3,$31'"
2021-11-30Cygwin: get/setrlimit: move RLIMIT_AS handling into static functionsCorinna Vinschen
To keep getrlimit/setrlimit clean, move the RLIMIT_AS code into local static functions __set_rlimit_as and __get_rlimit_as. Also, make adding process to the job the last step, to be able to close and release the job resources if anything failed. Add matching comment. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-30Cygwin: setrlimit: Add a permission checkCorinna Vinschen
If the incoming soft limit is less restrictive than the current hard limit, bail out with EPERM. Given the previous sanity check, this implies trying to raise the hard limit. While, theoretically, this should be allowed for privileged processes, Windows has no matching concept in terms of job limits Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-30Cygwin: get_rlimit_stack: add a commentCorinna Vinschen
...just to see what it's used for. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-29stdio: Fix issue of printing "%La" format with large exp part.Takashi Yano
- Currently, printf("%La\n", 1e1000L) crashes with segv due to lack of frexpl() function. With this patch, frexpl() function has been implemented in libm to solve this issue. Addresses: https://sourceware.org/pipermail/newlib/2021/018718.html
2021-11-26Cygwin: add 3.4 release messagesCorinna Vinschen
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-26Cygwin: get/setrlimit: implement RLIMIT_ASCorinna Vinschen
Code based on the idea implemented by the oneTBB project, see https://github.com/oneapi-src/oneTBB Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-26ldtoa: Fix insufficient valid output digits for "%f" format.Takashi Yano
- If the number has large integer part and small fraction part is specified in output format, e.g. printf("%.3f", sqrt(2)*1e60);, valid output digits were insufficient. This patch fixes the issue.
2021-11-23Cygwin: fhandler_fifo::raw_read: handle STATUS_PENDINGKen Brown
NtReadFile can return STATUS_PENDING occasionally even in non-blocking mode. Check for this and wait for NtReadFile to complete. To avoid code repetition, do this in a static helper function nt_read.
2021-11-23Cygwin: fhandler_pipe::raw_read: fix handle leakKen Brown
Slightly rearrange the code to avoid returning without closing the event handle.
2021-11-22Cygwin: Fix release note 3.3.3.Takashi Yano
- Removes the bug fix entry that was accidentally added to the release notes 3.3.3, even though it had been already fixed in 3.3.2.
2021-11-22Cygwin: sigproc: Fix potential race issue regarding exit_state.Takashi Yano
- If sig_send() is called while another thread is processing exit(), race issue regarding exit_state may occur. This patch fixes the issue.
2021-11-22ldtoa: don't restrict outbuf size to ndigitsCorinna Vinschen
https://cygwin.com/pipermail/cygwin/2021-November/249930.html reported a regression introduce by using a dynamically sized local char array in favor of a statically sized array. Fix this by reverting to a statically sized array, using a small buffer on the stack for a reasonable number of requested digits, a big mallocated buffer otherwise. This should work for small targets as well, given that malloc is used in printf anyway right now. This is *still* hopefully just a temporary measure, unless somebody actually provides a new ldtoa. Fixes: 4d90e53359145 ("ldtoa: fix dropping too many digits from output") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-22Cygwin: add release message for raise fixCorinna Vinschen
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-22Cygwin: raise: align return value and error checking to LinuxCorinna Vinschen
raise(2) on Linux returns the same values and sets errno independent of calling kill(2) or pthread_kill(3). Align code to behave the same. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2021-11-22Cygwin: raise: fix check for multithreaded processCorinna Vinschen
The check for the pthread self pointer in TLS is misleading, given the main thread has this pointer initialized as well. Check for the global __isthreaded flag as well. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>