Currently, double precision math functions in newlib/libm/machine/arm detect whether neon instructions can be used for double precision computation by checking the architecture version (>= 8) and the availability of floating-point instructions. However, these instructions would not be available if targeting fpv5-sp-d16 as the FPU, which by definition does not have 64bit float instructions. This patch adds a check that __ARM_FP advertises 64bit float instructions.
* libm/machine/arm/s_ceil.c: Also check that 64bit FP instructions are
available in the guard.
* libm/machine/arm/s_floor.c: Likewise.
* libm/machine/arm/s_nearbyint.c: Likewise.
* libm/machine/arm/s_rint.c: Likewise.
* libm/machine/arm/s_round.c: Likewise.
* libm/machine/arm/s_trunc.c: Likewise.
* libc/stdio/freopen.c (_freopen_r): Only reset __SWID bit per SUSv4.
* libc/stdio64/freopen64.c (_freopen64_r): Add missing resetting of
flag values and _mbstate.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* mount.cc (mount_info::from_fstab_line): Support mounting the current
user's temp folder as /tmp/. This is particularly useful a feature
when Cygwin's own files are write-protected.
* pathnames.xml: document the new usertemp file system type
Detailed explanation:
In the context of Windows, there is a per-user directory for temporary
files, by default specified via the environment variable %TEMP%. Let's
allow to use that directory for our /tmp/ directory.
With this patch, we introduce the special filesystem type "usertemp":
By specifying
none /tmp usertemp binary,posix=0 0 0
in /etc/fstab, the /tmp/ directory gets auto-mounted to the directory
specified by the %TEMP% variable.
This feature comes handy in particularly in scenarios where the
administrator might want to write-protect the entire Cygwin directory
yet still needs to allow users to write into the /tmp/ directory.
This is the case in the context of Git for Windows, where the
Cygwin (MSys2) root directory lives inside C:\Program Files and hence
/tmp/ would not be writable otherwise.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
* libc/include/sys/types.h: Move definitions of NBBY and howmany to
sys/param.h. Move definitions of select(2) macros to sys/select.h.
* libc/include/sys/param.h: See above.
* libc/include/sys/select.h: Move Cygwin's sys/select.h here.
* include/sys/select.h: Move select(2) macros from newlib's sys/types.h
here. Rename howmany to _howmany to unclutter namespace. Move file to
newlib.
* libc/rexex.cc: Add declaration for cygwin_gethostname.
* poll.cc: Include sys/param.h and locale select.h.
* select.h (cygwin_select): Declare.
* uname.cc: Declare cygwin_gethostname.
* winsup.h: Drop declarations of cygwin_select and cygwin_gethostname.
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>
* include/sys/cygwin.h (CCP_PROC_CYGDRIVE): New flag.
* mount.cc (mount_info::cygdrive_posix_path): Take flag values rather
than just a trailing_slash_p bool. Emit /proc/cygdrive path if
CCP_PROC_CYGDRIVE flag is given.
(mount_info::conv_to_posix_path): Take flag values rather than just
a keep_rel_p bool. Rename _p variables. Print flag value as hex in
debug_printf. Call cygdrive_posix_path with flag values.
* mount.h (mount_info::cygdrive_posix_path): Accommodate above change
in declaration.
(mount_info::conv_to_posix_path): Ditto.
* fhandler_process.cc (format_process_exename): Accommodate change to
mount_info::conv_to_posix_path.
* path.cc (cygwin_conv_path): Ditto.
* cygpath.cc (absolute_flag): Initialize to CCP_RELATIVE to simplify
expressions.
(cygdrive_flag): New global flag.
(long_options): Add --proc-cygdrive option.
(options): Add -U option.
(usage): Add description for -U option.
(do_sysfolders): Or cygdrive_flag to cygwin_conv_path call.
(do_pathconv): Simply or absolute_flag to conv_func. Or
cygdrive_flag to conv_func.
(do_options): Initalize absolute_flag to CCP_RELATIVE. Initialize new
cygdrive_flag. Set absolute_flag to CCP_ABSOLUTE on -a. Set
cygdrive_flag to CCP_PROC_CYGDRIVE on -U.
* new-features.xml (ov-new2.4): Document cygpath -U option.
* utils.xml (cygpath): Ditto.
* path.xml (func-cygwin-path): Add CCP_PROC_CYGDRIVE description.
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 (thread_info::thread_info): Accommodate the fact
that TEBs take two pages.
(thread_info::fill_if_match): Rewrite the method for post W10 1511 TEB
detection.
(format_process_maps): Add a state member to region. Fix the code
to handle PEB/TEB region since W10 1511.
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>
* child_info.h (struct child_info): Add member from_main.
* fork.cc (frok::child): Check from_main rather than stackaddr.
(frok::parent): Set ch.from_main if running in the main thread.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* child_info.h (CURR_CHILD_INFO_MAGIC): Align to below change.
(class child_info_fork): Rename stacktop to stacklimit. Rename
stackbottom to stackbase. Accommodate name change throughout Cygwin.
Rephrase comments to be clearer.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* cygtls.h (_tlsbase): Remove. Replace throughout with
NtCurrentTeb()->Tib.StackBase.
(_tlstop): Remove. Replace throughout with
NtCurrentTeb()->Tib.StackLimit.
* dcrt0.cc (child_info_fork::alloc_stack): Move definition of local
teb variable up to be used throughout.
* include/cygwin/config.h (__getreent): Use inline function on both
architectures.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* uinfo.cc (pwdgrp::fetch_account_from_windows): Only create 1-5-32-x
SIDs from ids for x <= 999.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* sec_acl.cc (get_posix_access): In case owner SID == group SID, when
encountering the group entry, change the value of `id' accordingly.
Explain why.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* cygtls.h (_cygtls::wait_signal_arrived): Renamed from
set_signal_arrived.
(_cygtls::set_signal_arrived): New function signalling signal_arrived.
(_cygtls::reset_signal_arrived): Don't reset will_wait_for_signal.
(_cygtls::unwait_signal_arrived): New function only resetting
will_wait_for_signal.
(class wait_signal_arrived): Rename from set_signal_arrived.
Accommodate name change throughout Cygwin.
(wait_signal_arrived::~wait_signal_arrived): Call
_cygtls::unwait_signal_arrived. Add comment.
* cygserver_ipc.h (ipc_set_proc_info): Fetch signal_arrived handle
via call to _cygtls::get_signal_arrived.
* exceptions.cc (_cygtls::interrupt_setup): Signal signal_arrived via
call to _cygtls::set_signal_arrived.
(_cygtls::handle_SIGCONT): Ditto.
* fhandler_socket.cc (fhandler_socket::wait_for_events): Generate
WSAEVENT array prior to entering wait loop. Add cancel event object
if available. Remove calls to pthread_testcancel and just call
pthread::static_cancel_self if the cancel event object is signalled.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* kill.cc (strsigno): Don't call sys_sigabbrev for signal 0.
(listsig): Don't call strsigno for signal 0.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
One more patch. MacType was observed by several users to cause `GPGME:
Invalid crypto engine` failures in MSYS2. See
<https://github.com/Alexpux/MSYS2-packages/issues/393>.
I also removed two full stops in the sake of consistency.
* faq-using.xml: Add MacType to the BLODA. Fix formatting.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
First take on how to describe dereferencing of Cygwin-only symlinks path
components when creating NTFS symlinks.
Note that I haven't tried building the documentation, so I don't know if
the added paragraph breaks anything. Hopefully not.
* pathnames.xml: Add a section describing peculiarities of how Cygwin
creates NTFS symlinks.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
A user of MSYS2 had non-deterministic segfaults when running simple
command from bash started from cmd. We've isolated the cause to
`C:\Program Files (x86)\Forefront TMG Client\FwcWsp64.dll`. See
<http://sourceforge.net/p/msys2/tickets/212/> for a little more
information.
It seems enough to include the software in BLODA, but if not, sorry for
the unsolicited patch and let's discuss.
* faq-using.xml: Add Forefront TMG to the BLODA
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Reformulate the strcmp-armv7.S selection logic around the architecture
features required by the implementation code rather (some) version of
the architecture that expose those features.
The patch moves the inline ASM thumb2 -Os implementation out into its
own .S file.
Tested by building newlib and comparing libc.a binaries before and
after for all permutations of:
Architectures:
armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k
armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a
armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2
ISAs:
thumb arm
Optimization Levels:
Os O2
Excluding:
armv6s-m -mthumb
armv6-m -mthumb
armv6zk -mthumb
armv6z -mthumb
armv6k -mthumb
armv6j -mthumb
* nlsfuncs.cc (setlocaleinfo): New macro calling __setlocaleinfo.
(__setlocaleinfo): New function to set a locale-specific character
to an explicit wchar_t value.
(__set_lc_numeric_from_win): Handle fa_IR and ps_AF locales to return
same decimal point and thousands separator characters as on Linux.
(__set_lc_monetary_from_win): Ditto for monetary characters.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
- move the description of the alternative form produced with the # flag from a
nested table to an additional table
2015-11-12 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdio/sprintf.c: Simplify documentation markup.
* libc/stdio/swprintf.c: Ditto.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
- use bullet points to separate width, size and type sections, rather than using
rows in an enormous table, for consistency with sprintf and swprintf.
- use code markup for size bullet point for consistency
- use a texinfo multitable for description of the size flags, rather than some
preformatted text
- tidy up some whitespace so type flags are all aligned
2015-11-12 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdio/sscanf.c: Improve documentation markup.
* libc/stdio/swscanf.c: Ditto.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Thomas Preud'homme
Corinna Vinschen
Johannes Schindelin
Nick Withers
Nick Clifton
Michael Kwasigroch
David Macek
Steve Ellcey
Marcus Shawcroft
Yaakov Selkowitz
Jon Turney