Mike Frysinger [Wed, 12 Jan 2022 11:53:06 +0000 (06:53 -0500)]
newlib: regen aclocal.m4 after autoconf update
The configure scripts were regenerated with 2.69 for the newlib-4.2.0
release in 484d2ebf8d825b28af47b8ee88cd845f1d2c7c6e, but the aclocal
files were not. Do that now to avoid confusion between the two as to
which version of autoconf was used.
Corinna Vinschen [Wed, 12 Jan 2022 10:57:35 +0000 (11:57 +0100)]
posix_spawn: fix get/set uid/gid calls for 32 bit Cygwin
32 bit Cygwin still exports function calls to support old applications.
E. g., when switching from 16 to 32 bit uid/gid values, new function
like getuid32 have been added and the old getuid function still only
provides 16 bit values. Newly built applications using getuid are
actually calling getuid32.
However, this link magic isn't performed inside Cygwin itself, so if
newlib functions call getuid, they actually call the old getuid, not
the new getuid32. This leads to truncated uid/gid values.
https://cygwin.com/pipermail/cygwin/2022-January/250453.html reports
how this leads to problems in posix_spawn.
Fix this temporarily. i686 support will go away soon in Cygwin and the
fix can be dropped.
Corinna Vinschen [Tue, 11 Jan 2022 21:20:47 +0000 (22:20 +0100)]
Cygwin: ACLs: ignore *_INHERIT flags in file ACLs
get_posix_access() creates DEF_*_OBJ aclent_t entries from Windows ACEs
with INHERIT flags set, independent of the file type. These flags only
make sense on directory objects, but certain Windows functions don't
check the file type and allow INHERIT ACE flags even on non-directories.
As a fix, make sure to ignore the INHERIT flags on non-directory ACLs
and don't propagate the matching DEF_*_OBJ aclent_t entries to callers.
Sebastian Huber [Mon, 10 Jan 2022 08:00:59 +0000 (09:00 +0100)]
powerpc/setjmp: Improve RTEMS support
For some RTEMS multilibs, the FPU and Altivec units are disabled during
interrupt handling. Do not save and restore the corresponding registers in
this case.
Mike Frysinger [Fri, 7 Jan 2022 05:53:26 +0000 (00:53 -0500)]
libgloss: hardcode AC_CONFIG_AUX_DIR path
In order to transition to automake, we have to use hardcoded paths in
the AC_CONFIG_AUX_DIR macro call (since automake evaluates the path
itself, and doesn't expand vars), so simplify all the calls here.
Mike Frysinger [Thu, 30 Dec 2021 19:26:52 +0000 (14:26 -0500)]
newlib: migrate from INCLUDES to AM_CPPFLAGS
Since automake deprecated the INCLUDES name in favor of AM_CPPFLAGS,
change all existing users over. The generated code is the same since
the two variables have been used in the same exact places by design.
There are other cleanups to be done, but lets focus on just renaming
here so we can upgrade to a newer automake version w/out triggering
new warnings.
Mike Frysinger [Thu, 30 Dec 2021 19:03:30 +0000 (14:03 -0500)]
newlib: require automake-1.11.6
This is simply reflecting reality: all the subdirs in here are already
using automake-1.11.6, so making it a requirement will allow us to stop
suggesting we might support automake-1.9 or 1.10 (which I'm fairly sure
do not work today).
This is why only acinclude.m4 changes in this patch: the generated files
are exactly the same as the directives here are automake constraints,
not generated code logic.
Jon Turney [Thu, 30 Dec 2021 00:33:28 +0000 (00:33 +0000)]
Cygwin: Update CI configuration for python version change
Update the python version for python-lxml and python-ply packages.
'dblate' now depends on python39, so that will be installed and made the
default by alternatives, so make sure that these python packages are
also available for that python version.
Jon Turney [Thu, 22 Jul 2021 15:23:31 +0000 (16:23 +0100)]
newlib: Remove automake option 'cygnus'
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):
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.
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
$(top_srcdir)/../ as well as in PATH could be added.
7. The check target doesn't depend on all.
This effect is not preseved. The check target now depends on the all
target.
This concern seems somewhat academic given the current state of the
testsuite.
Jon Turney [Tue, 14 Dec 2021 20:30:39 +0000 (20:30 +0000)]
newlib: Make effects of 'cygnus' explicit
Add all the effects of 'cygnus' for which there exists an explicit way
to request that behaviour:
* Implied foreign strictness and options no-installinfo, no-dependencies
and no-dist are added to AM_INIT_AUTOMAKE in newlib/acinclude.m4.
* macro AM_MAINTAINER_MODE is added to newlib/acinclude.m4.
* For the implied TEXINFO_TEX of '$(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'.
Ken Brown [Sun, 26 Dec 2021 21:42:26 +0000 (16:42 -0500)]
Cygwin: fhandler_pipe::get_query_hdl_per_process: avoid a crash
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.
Jon Turney [Fri, 17 Dec 2021 19:14:27 +0000 (19:14 +0000)]
cygwin: Add cocom and patch to build prerequisites in FAQ
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.
Jon Turney [Tue, 7 Dec 2021 14:05:34 +0000 (14:05 +0000)]
Cygwin: Conditionally build documentation
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.)
Takashi Yano [Wed, 15 Dec 2021 03:25:58 +0000 (12:25 +0900)]
Cygwin: pty: Fix input switching failure.
- 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.
Takashi Yano [Tue, 14 Dec 2021 02:58:26 +0000 (11:58 +0900)]
Cygwin: pty: Fix conditions for input transfer.
- 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.
Takashi Yano [Mon, 13 Dec 2021 10:25:22 +0000 (19:25 +0900)]
Cygwin: pty: Fix Ctrl-C handling further for non-cygwin apps.
- 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.
Takashi Yano [Wed, 10 Nov 2021 12:47:09 +0000 (21:47 +0900)]
Cygwin: pipe: Adopt FILE_SYNCHRONOUS_IO_NONALERT flag for read pipe.
- 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.
Takashi Yano [Sun, 12 Dec 2021 12:20:47 +0000 (21:20 +0900)]
Cygwin: pty: Fix Ctrl-C handling for non-cygwin apps in background.
- 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.
Takashi Yano [Sat, 11 Dec 2021 13:08:25 +0000 (22:08 +0900)]
Cygwin: pty: Add missing input transfer when switch_to_pcon_in state.
- 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.
Takashi Yano [Thu, 9 Dec 2021 08:15:23 +0000 (17:15 +0900)]
Cygwin: path: Fix path conversion of virtual drive.
- 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.
Takashi Yano [Wed, 8 Dec 2021 11:15:45 +0000 (20:15 +0900)]
Cygwin: path: Convert UNC path prefix back to drive letter.
- 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
Takashi Yano [Tue, 30 Nov 2021 21:11:32 +0000 (06:11 +0900)]
ldtoa: Import gdtoa from OpenBSD.
- 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.
Takashi Yano [Thu, 2 Dec 2021 09:51:21 +0000 (18:51 +0900)]
frexpl: Support smaller long double of LDBL_MANT_DIG == 53.
- 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.
Corinna Vinschen [Tue, 30 Nov 2021 11:48:34 +0000 (12:48 +0100)]
Cygwin: setrlimit: Add a permission check
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
Takashi Yano [Mon, 29 Nov 2021 12:56:46 +0000 (21:56 +0900)]
stdio: Fix issue of printing "%La" format with large exp part.
- 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.
Takashi Yano [Thu, 25 Nov 2021 21:47:27 +0000 (06:47 +0900)]
ldtoa: Fix insufficient valid output digits for "%f" format.
- 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.
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.
Corinna Vinschen [Mon, 22 Nov 2021 12:57:16 +0000 (13:57 +0100)]
ldtoa: don't restrict outbuf size to ndigits
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>
Corinna Vinschen [Mon, 22 Nov 2021 11:33:47 +0000 (12:33 +0100)]
Cygwin: raise: fix check for multithreaded process
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.
Takashi Yano [Fri, 19 Nov 2021 17:32:12 +0000 (02:32 +0900)]
Cygwin: sigproc: Do not send signal to myself if exiting.
- This patch fixes the issue that process sometimes hangs for 60
seconds with the following scenario.
1) Open command prompt.
2) Run "c:\cygwin64\bin\bash -l"
3) Compipe the following source with mingw compiler.
/*--- Begin ---*/
#include <stdio.h>
int main() {return getchar();}
/*---- End ----*/
4) Run "tcsh -c ./a.exe"
5) Hit Ctrl-C.
Takashi Yano [Tue, 16 Nov 2021 23:13:17 +0000 (08:13 +0900)]
Cygwin: pipe: Handle STATUS_PENDING even for nonblocking mode.
- NtReadFile() and NtWriteFile() seems to return STATUS_PENDING
occasionally even in nonblocking mode. This patch adds handling
for STATUS_PENDING in nonblocking mode.
Corinna Vinschen [Tue, 16 Nov 2021 18:44:21 +0000 (19:44 +0100)]
Cygwin: fix up cached DOS file attributes after file creation
The file attributes after creating a file are not necessarily
identical to the attributes we passed as argument to NtCreateFile.
This results in subsequent operations like fchmod or facl to
set the DOS file attributes to unexpected values.
The fix is to request file attributes from the OS after file creation
and cache those.
Jon Turney [Tue, 16 Nov 2021 16:48:10 +0000 (16:48 +0000)]
Cygwin: Drop 'make check' from AppVeyor
Appveyor has quite restrictive concurrent job limits for free projects,
so reduce the job's runtime by dropping 'make check' to avoid blocking
(since we're now also running that in a GitHub action).
When running Cygwin's Bash in the Windows Terminal (see
https://docs.microsoft.com/en-us/windows/terminal/ for details), Cygwin
is receiving keyboard input in the form of UTF-16 characters.
UTF-16 has that awkward challenge that it cannot map the full Unicode
range, and to make up for it, there are the ranges U+D800-U+DBFF and
U+DC00-U+DFFF which are illegal except when they come in a pair encoding
for Unicode characters beyond U+FFFF.
Cygwin does not handle such surrogate pairs correctly at the moment, as
can be seen e.g. when running Cygwin's Bash in the Windows Terminal and
then inserting an emoji (e.g. via Windows + <dot>, which opens an emoji
picker on recent Windows versions): Instead of showing an emoji, this
shows the infamous question mark in a black triangle, i.e. the invalid
Unicode character.
Let's special-case surrogate pairs in this scenario.
This fixes https://github.com/git-for-windows/git/issues/3281
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Mike Frysinger [Tue, 9 Nov 2021 03:22:27 +0000 (22:22 -0500)]
change _COMPILING_NEWLIB to _LIBC
Use the same name as glibc & gnulib to indicate "newlib itself is
being compiled". This also harmonizes the codebase a bit in that
_LIBC was already used in places instead of _COMPILING_NEWLIB.
Building for bfin-elf, mips-elf, and x86_64-pc-cygwin produces
the same object code.
Corinna Vinschen [Mon, 15 Nov 2021 12:32:03 +0000 (13:32 +0100)]
Cygwin: dllfixdbg: create .gnu_debuglink section in the right spot
A recent change in binutils marks the .gnu_debuglink_overlay section
as debug section. When dllfixdbg calls objcopy -g, the section
is removed and the --add-gnu-debuglink option on the same command line
appends the section consequentially at the end of the sections.
This in turn breaks Windows Version info and, potentially, raising
the cygheap size at runtime.
Fix this by adding an explicit --keep-section=.gnu_debuglink_overlay
to the objcopy command line.
Mike Frysinger [Tue, 9 Nov 2021 02:42:12 +0000 (21:42 -0500)]
newlib: ignore _FORTIFY_SOURCE when building newlib
Some distros enable _FORTIFY_SOURCE by default which upsets building
newlib which itself implements the logic for this define. For example,
building gets.c fails because the includes set up a gets() macro which
expands in the definition.
Since newlib isn't prepared to build itself with _FORTIFY_SOURCE, and
it's not clear if it's even useful, ignore it when building the code.
This also matches what glibc is doing.
Mike Frysinger [Tue, 9 Nov 2021 00:23:33 +0000 (19:23 -0500)]
define _COMPILING_NEWLIB for all targets when compiling
The _COMPILING_NEWLIB symbol is for declaring "the code is being
compiled for newlib itself" so headers can change behavior vs the
header being used by users (who should get the normal clean API).
Unfortunately, this symbol is defined inconsistently leading to it
only being useful for a few subsections of the tree.
Pull it out so that it's defined all the time for all targets.
Mike Frysinger [Tue, 9 Nov 2021 00:28:16 +0000 (19:28 -0500)]
ctype: use less short names in public header
We're seeing a build failure in GNU sim code which is using _P locally
but the ctype.h define clashes with it. Rename these to use the same
symbols that glibc does. They're a bit more verbose, but seems likely
that we'll have fewer conflicts if glibc isn't seeing them.
However, these shortnames are still used internally by ctype modules
to produce pretty concise source code, so move the short names to the
internal ctype_.h where short name conflicts shouldn't show up.
Corinna Vinschen [Wed, 10 Nov 2021 20:17:30 +0000 (21:17 +0100)]
Cygwin: introduce isabspath_strict macro
isabspath handles a path "X:", without trailing slash or backslash,
as absolute path. This breaks some scenarios with relative paths
starting with "X:". For instance, fstatat will mishandle a call
with valid dirfd and "c:" as path.
The reason is that gen_full_path_at() will check for isabspath("C:")
which returns true. So the path will be used verbatim in fstatat,
rather than being converted to a path "<dirfd-path>/c:".
So, introduce isabspath_strict, which returns true for paths starting
with "X:" only if the next char is actually a slash or backslash.
Use it from gen_full_path_at().
This still fixes only half the problem. The right thing would have been
to disallow using DOS paths in the first place. Unfortunately it's much
too late for that.
Takashi Yano [Thu, 11 Nov 2021 03:30:24 +0000 (12:30 +0900)]
Cygwin: pipe: Fix raw_write() for non-cygwin pipe with size zero.
- Currently, raw_write() fails to handle size zero pipe which may
be created by non-cygwin apps (e.g. Windows native ninja). This
patch fixes the issue.
texi2pod.pl: add no-op --no-split option support [PR28144]
Change 2faf902da ("generate single html manual page by default")
added use of --no-split option to makeinfo. binutils reuses
makeinfo options for texi2pod.pl wrapper. Unsupported option
led to silent manpage truncation.
git://sourceware.org / newlib-cygwin.git / log