Commit Graph

18856 Commits

Author SHA1 Message Date
Ken Brown 281d3bf060 Cygwin: FIFO: clean up locks
Make sure to use the fifo_client lock when (and only when) it is
needed.
2019-06-23 10:16:33 -04:00
Ken Brown a9b6d32882 Cygwin: FIFO: add some error checking
Change the return type of fhandler_fifo::delete_client_handler from
void to int so that we can report errors.
2019-06-23 10:16:33 -04:00
Ken Brown 724c18ff7e Cygwin: FIFO: fix signal handling in raw_read and raw_write
cygwait wasn't being called correctly.

Also do some minor cleanup in raw_read and raw_write.
2019-06-23 10:16:33 -04:00
Corinna Vinschen ad101bcb0f Rename <xlocale.h> back to <sys/_locale.h>
libX11 provides <X11/Xlocale.h>.  The build of libX11 itself adds
include/X11 to the compiler's include path.  This results in a name
collision with /usr/include/xlocale.h on case-insensitive filesystems.

Commit 90e35b1eb3 renamed sys/_locale.h to xlocale.h in March 2017 under
the assumption that we should provide the locale_t type in the same file
as on Linux, FreeBSD, and Darwin.

A few weeks later (June 2017), glibc removed the xlocale.h file in favor
of bits/types/locale_t.h, which shouldn't be included directly anyway.

For reference and the reasoning, see
https://sourceware.org/git/?p=glibc.git;a=commit;h=f0be25b6336d

Given the above, revert 90e35b1eb3 and
fix additional usage of xlocale.h.
2019-06-14 10:02:08 +02:00
Ken Brown 000f2409b1 Revert "Cygwin: fork: Remember child not before success."
This reverts commit f03ea8e1c5.  That
commit leads to fork problems if cygserver is running:

https://cygwin.com/ml/cygwin-patches/2019-q2/msg00155.html
2019-06-11 08:50:41 -04:00
Jeff Johnston eb429ad509 Fix __getreent stack calculations for AMD GCN
From: Andrew Stubbs <ams@codesourcery.com>

Fix a bug in which the high-part of 64-bit values are being corrupted, leading
to erroneous stack overflow errors. The problem was only that the mixed-size
calculations are being treated as signed when they should be unsigned.
2019-06-07 13:57:45 -04:00
Jeff Johnston 007bc1923c Add gfortran support for AMD GCN
From: Kwok Cheung Yeung <kcy@codesourcery.com>

This patch adds enough support for constructors/destructors and OS functions
to be able to link and run gfortran programs on AMD GCN.

There's no actual ability to do I/O operations on this targets, besides
"write" to stdout and stderr, so most of the functions are just stubs.
2019-06-07 13:55:43 -04:00
trasz 4feb21d705 Mark inline functions with __unused;
prevents compiler warning when they end up being unused.

Reviewed by:	kib
Obtained from:	OpenBSD
MFC after:	2 weeks
Sponsored by:	Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D20185
2019-06-07 09:13:13 +02:00
pfg 160f9f0bf2 sys/sys: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2019-06-07 09:11:15 +02:00
Corinna Vinschen 605bdcd410 Cygwin: map beyond EOF on 64 bit and WOW64 as well
32 bit Cygwin performs a POSIX-compatible mapping after EOF which
is not supported in this form on Windows.  The 64 bit Windows
kernel never supported the AT_ROUND_TO_PAGE mapping flag, so we
couldn't page-aligned map the space right after the file's EOF.
So mapping beyond EOF was disabled in 64 bit Windows and WOW64.

However,  if mmap works, a matching munmap should work as well,
*and* it should not accidentally unmap unrelated memory.

Therefore we enable mapping beyond EOF on 64 bit as well.  Since
that mapping is always 64K aligned, the are between the last file
page and the next 64K allocation boundary will be unallocated.
There's no way around that.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-06-05 20:08:34 +02:00
Ben Wijen b0c033bf3f mkdir: always check-for-existence
When using NtCreateFile when creating a directory that already exists,
it will correctly return 'STATUS_OBJECT_NAME_COLLISION'.

However using this function to create a directory (and all its parents)
a normal use would be to start with mkdir(‘/cygdrive/c’) which translates
to ‘C:\’ for which it'll instead return ‘STATUS_ACCESS_DENIED’.
2019-06-05 13:53:44 +02:00
Yaakov Selkowitz 5c2a3661c1 cygcheck: expand common_apps list
An increasing number of tools are being included in Windows which have the
same names as those included in Cygwin packages.  Indicating which one is
first in PATH can be helpful in diagnosing behavioural discrepencies
between them.

Also, fix the alphabetization of ssh.
2019-06-04 11:31:54 -04:00
Corinna Vinschen e1254add73 Cygwin: Allow accessing 48 bit address space in Windows 8.1 or later
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.
2019-06-04 16:58:53 +02:00
Michael Haubenwallner f03ea8e1c5 Cygwin: fork: Remember child not before success.
Do not remember the child before it was successfully initialized, or we
would need more sophisticated cleanup on child initialization failure,
like cleaning up the process table and suppressing SIGCHILD delivery
with multiple threads ("waitproc") involved.  Compared to that, the
potential slowdown due to an extra yield () call should be negligible.
2019-06-03 18:43:45 +02:00
Michael Haubenwallner a8c23e4423 Cygwin: fork: Always pause child after fixups.
Pause the child process after performing fork fixups even if there were
no dynamically loaded dlls with extra data/bss transfers to wait for.
This allows the parent process to cancel the current fork call even if
the child process was successfully initialized already.

This is a preparation for when the parent does remember the child no
earlier than after successful child initialization.
2019-06-03 18:40:35 +02:00
Michael Haubenwallner a9c27900e3 Cygwin: dll_list: no recursive use of nt_max_path_buf
Querying the ntlength and existence of the /var/run/cygfork directory in
the very first Cygwin process should not use nt_max_path_buf, as that
one is used by dll_list::alloc already.
2019-06-03 18:38:16 +02:00
Michael Haubenwallner 6c9ad75a4b Cygwin: dll_list: stat_real_file_once with ntname
NtQueryVirtualMemory for MemorySectionName may return some old path even
if the process was just started, for when some directory in between was
renamed - maybe because the NT file cache is hot for the old path still.
This was seen during gcc bootstrap, returning a MemorySectionName of
".../gcc/xgcc.exe" even if started as ".../prev-gcc/xgcc.exe", where the
directory rename from "gcc" to "prev-gcc" was done the moment before.
As we stat the module's real file right after loading now, there is no
point in using NtQueryVirtualMemory with MemorySectionName any more, and
we can use what GetModuleFileName returned instead.
2019-06-03 18:37:52 +02:00
Lucio Andrés Illanes Albornoz d5daede26c Fix vfwscanf(3) assignment suppression flag handling bug
newlib's vfwscanf(3) (or specifically, __SVFWSCANF_R()) fails to correctly set
the assignment-suppressing character (`*') flag[1] which, when present in the
formatting string, results in undefined behaviour comprising retrieving and
dereferencing a pointer that was not supplied by the caller as such or at all.
When compared to the vfscanf(3) implementation, this would appear to be over
the missing goto match_failure statement preceded by the flags test seen below.
Hence, this patch (re)introduces it.

[1] <http://pubs.opengroup.org/onlinepubs/009695399/functions/fwscanf.html>

--
2019-06-03 10:38:40 +02:00
Jinke Fan ee7e49e193 Add support for Hygon Dhyana processor
-Add vendor identification
-Support in get_cpu_cache

Background:
    Chengdu Haiguang IC Design Co., Ltd (Hygon) is a Joint Venture
    between AMD and Haiguang Information Technology Co.,Ltd., aims at
    providing high performance x86 processor for China server market.
    Its first generation processor codename is Dhyana, which
    originates from AMD technology and shares most of the
    architecture with AMD's family 17h, but with different CPU Vendor
    ID("HygonGenuine")/Family series number(Family 18h).

Related Hygon kernel patch can be found on:
http://lkml.kernel.org/r/5ce86123a7b9dad925ac583d88d2f921040e859b.1538583282.git.puwen@hygon.cn

Signed-off-by: Jinke Fan <fanjinke@hygon.cn>
2019-06-03 10:32:58 +02:00
Sebastian Huber f5a5a23ea8 Fix <sys/_types.h> issues with <stddef.h>
A commit from 2016 tried to address this GCC provided <stddef.h> issue

    #if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
      || defined(__DragonFly__) \
      || defined(__FreeBSD_kernel__)
    /* __size_t is a typedef on FreeBSD 5, must not trash it. */
    #elif defined (__VMS__)
    /* __size_t is also a typedef on VMS.  */
    #else
    #define __size_t
    #endif

with an include of <stddef.h> before <sys/_types.h> in <sys/types.h>.
Is is not robust enough.  Do the include of <stddef.h> in <sys/_types.h>
directly and request only the necessary types.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2019-06-03 10:20:15 +02:00
Sebastian Huber 86809750bb Avoid <sys/cdefs.h> dependency in <sys/_types.h>
Including <sys/cdefs.h> could result in cyclic header dependencies.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2019-06-03 10:20:15 +02:00
Sebastian Huber 66e75b6961 Avoid cyclic header dependencies
RTEMS uses a considerable part of FreeBSD kernel and user space sources.
These sources are compiled with a __FreeBSD__ define.  On 2018-06-26
Gerald Pfeifer changed the GCC provided <stddef.h> so that it includes
<sys/_types.h> if __FreeBSD__ is defined.  The Newlib <sys/_types.h>
included <sys/lock.h> which includes <sys/cdefs.h> on RTEMS which
includes <stddef.h>.  To get rid of this cyclic dependency move the
optional _flock_t definition to <sys/reent.h>.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2019-06-03 10:20:15 +02:00
Ken Brown d79aa0f593 Cygwin: FIFO: respect the O_CLOEXEC flag
Set the inheritance of the Windows pipe handles according to the
O_CLOEXEC flag.  Previously the pipe was always created and opened
with OBJ_INHERIT.
2019-05-28 15:50:05 -04:00
Ken Brown 5bb8d445f4 Cygwin: FIFO: Open only one handle to NPFS
Make npfs_handle a static member function of fhandler_fifo, as in
fhandler_socket_unix.
2019-05-23 08:39:33 -04:00
Jim Wilson 77ac27dcf8 RISC-V: Add _LITE_EXIT in crt0.S.
This patch adds _LITE_EXIT in crt0.S to enable "lite exit" technique in
RISC-V. The changes have been tested in riscv/riscv-gnu-toolchain by
riscv-dejagnu with riscv-sim.exp/riscv-sim-nano.exp.
2019-05-22 17:41:25 -07:00
Jim Wilson 5c86f0da5f RISC-V: Add size optimized memcpy, memmove, memset and strcmp.
This patch adds implementations of memcpy, memmove, memset and strcmp
optimized for size. The changes have been tested in
riscv/riscv-gnu-toolchain by riscv-dejagnu with
riscv-sim.exp/riscv-sim-nano.exp.
2019-05-22 17:36:57 -07:00
Faraz Shahbazker a9a0d219a4 Make .data section placement coincide with _fdata symbol
The _fdata symbol in MIPS linker scripts is aligned to a 16-byte
boundary.  The ALIGN function does not implicitly update current
location counter.  If sections positioned after the assignment
do not have the same natural alignment as the ALIGN function then
the start of the section group will not coincide with the value
of the symbol.

Given the linker command sequence:
  symbol = ALIGN (NN);
  (.section*)
where the idiom implies a desire to mark the beginning of .section
with symbol, there must be an assignment to the location counter
between the assignment to symbol and the .section pattern.

libgloss/
	* mips/array.ld: Update the location counter to match _fdata.
	* mips/cfe.ld: Likewise.
	* mips/ddb-kseg0.ld: Likewise.
	* mips/ddb.ld: Likewise.
	* mips/dve.ld: Likewise.
	* mips/idt.ld: Likewise.
	* mips/idt32.ld: Likewise.
	* mips/idt64.ld: Likewise.
	* mips/idtecoff.ld: Likewise.
	* mips/jmr3904app-java.ld: Likewise.
	* mips/jmr3904app.ld: Likewise.
	* mips/jmr3904dram-java.ld: Likewise.
	* mips/jmr3904dram.ld: Likewise.
	* mips/lsi.ld: Likewise.
	* mips/mti32.ld: Likewise.
	* mips/mti64.ld: Likewise.
	* mips/mti64_64.ld: Likewise.
	* mips/mti64_n32.ld: Likewise.
	* mips/nullmon.ld: Likewise.
	* mips/pmon.ld: Likewise.
	* mips/sde32.ld: Likewise.
	* mips/sde64.ld: Likewise.
2019-05-15 15:30:25 -04:00
Ken Brown e91bc190ff Cygwin: FIFO: code simplifications.
There's no longer a need to consider the connect_evt after fork/exec.
After stopping the listen_client thread, all client handlers should be
in the fc_connected or fc_invalid states, so their connect_evt members
won't be used again.

Also remove code in fhandler_fifo::dup that just repeats things
already done in stop_listen_client.
2019-05-09 14:41:29 -04:00
Ken Brown 0771fc7031 Cygwin: FIFO: make read_ready an auto-reset event
There's no point in allowing a writer to attempt to open until we've
created a pipe instance.
2019-05-09 14:41:29 -04:00
Ken Brown 102571f85d Cygwin: FIFO: improve the check for the listen_client thread
Add a method fhandler_fifo::check_listen_client_thread that checks
whether the thread is running.  Use it in raw_read instead of just
testing the handle listen_client_thr.
2019-05-09 14:41:29 -04:00
Ken Brown 7ad80b3c23 Cygwin: FIFO: set client handler flags more accurately
Reflect the fact that client handlers are only used for reading and
that, after connection, they are always nonblocking.
2019-05-09 14:41:29 -04:00
Ken Brown c12053a793 Cygwin: FIFO: don't leave a pending listen request
On exit from the listen_client thread, make sure there's no pending
FSCTL_PIPE_LISTEN request.  Otherwise we might get a client connection
after restarting the thread, and we won't have a handle for
communicating with that client.

Remove the retry loop in the case of STATUS_PIPE_LISTENING; that case
shouldn't occur.

Remove the now-unused fc_connecting value from
fifo_client_connect_state.
2019-05-09 14:41:29 -04:00
Ken Brown 816c6da53a Cygwin: FIFO: add a HANDLE parameter to open_pipe
It's now up to the caller to pass a handle to open_pipe and, if
desired, to call set_handle on return.

This will be useful for a future commit, in which we will open a
client connection without setting an io_handle.
2019-05-09 14:41:29 -04:00
Ken Brown 00b2e56d31 Cygwin: FIFO: re-implement duplexers
When opening a duplexer, open a client connection to the first client
handler.  Previously we gave the duplexer a bogus write handle, which
was just a duplicate of the first client handler's handle.  This meant
that we had a pipe server with no clients connected, and all I/O
attempts failed with STATUS_PIPE_LISTENING.

Extend the last fcntl change to duplexers.

Remove a now unused fifo_client_handler constructor, as well as the
long unusued method fifo_client_handler::connect.

Don't create the pipe in duplex mode; the server handle will only be
used for reading.
2019-05-09 14:41:29 -04:00
Ken Brown f3d1fe2ff8 Cygwin: FIFO: add 'record_connection' method
Future commits will have to re-use the code for recording a client
connection.  For convenience, factor out this code into a new method.
2019-05-09 14:41:29 -04:00
Ken Brown 1372021a2d Cygwin: FIFO: remove incorrect duplexer code
raw_read had some code that was based on an incorrect implementation
of duplexers.
2019-05-09 14:41:28 -04:00
Ken Brown 674b4fe995 Revert "Cygwin: check for STATUS_PENDING in fhandler_base::raw_read"
This reverts commit 10bf30bebf.  It was
made because an incorrect implementation of duplex FIFOs.
2019-05-09 14:41:28 -04:00
Michael Haubenwallner b6ebca61e3 Cygwin: dll_list: drop unused read_fbi method 2019-05-05 10:04:43 -04:00
Corinna Vinschen 4ac32559c0 Cygwin: Add release info for 3.0.7
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
(cherry picked from commit 01c253a4c58b6c1da01615431bdc4c88fcba48ea)
2019-04-30 18:49:23 +02:00
Michael Haubenwallner e33db96a14 Cygwin: dll_list: query dll file id at load time
NtQueryVirtualMemory for MemorySectionName does not reliable return the
changed dll file name when another process does move the file around,
and we may end up creating forkable hardlinks to wrong dll files.
So query the file id when loading the dll rather than before fork.
2019-04-30 18:10:08 +02:00
Michael Haubenwallner 0f5776c47c Cygwin: dll_list: stat_real_file_once as dll method
Make stat_real_file_once a method of struct dll, to be more flexible on
where to use.  Also, debug print memory section name queried for a dll.
This is a preparation to query the file id when loading the dll.
2019-04-30 18:10:08 +02:00
Michael Haubenwallner 4c79da8017 Cygwin: dll_list: drop FILE_BASIC_INFORMATION
Querying FILE_BASIC_INFORMATION is needless since using win pid+threadid
for forkables dirname rather than newest last write time.
2019-04-30 18:10:08 +02:00
Corinna Vinschen a4e62e3a4c Cygwin: update era and message locale data
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-04-30 11:55:04 +02:00
Faraz Shahbazker ab2901c843 Fix order of eh_frame sections in linker scripts
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 are placed after crtend.o and the
end-of-frame marker provided by crtend.o ends up in between .eh_frames
instead of being at the end.

This has always been a problem, but a 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_frames in all
MIPS linker scripts so that the one from crtend.o is always placed last.

libgloss/
	* mips/array.ld: Re-order to place .eh_frame from crtend.o
	after all other .eh_frame sections.
	* mips/cfe.ld: Likewise.
	* mips/ddb-kseg0.ld: Likewise.
	* mips/ddb.ld: Likewise.
	* mips/dve.ld: Likewise.
	* mips/idt.ld: Likewise.
	* mips/idt32.ld: Likewise.
	* mips/idt64.ld: Likewise.
	* mips/jmr3904app.ld: Likewise.
	* mips/lsi.ld: Likewise.
	* mips/mti32.ld: Likewise.
	* mips/mti64.ld: Likewise.
	* mips/mti64_64.ld: Likewise.
	* mips/mti64_n32.ld: Likewise.
	* mips/nullmon.ld: Likewise.
	* mips/pmon.ld: Likewise.
	* mips/sde32.ld: Likewise.
	* mips/sde64.ld: Likewise.
2019-04-29 10:44:24 +02:00
Ken Brown 440559c40a Cygwin: FIFO: synchronize the blocking mode of a writer's pipe
The blocking mode of the Windows pipe underlying a writer is set to
match that of the writer itself when the latter is opened.  Define
fhandler_fifo::fcntl to keep the pipe and the writer in sync if the
blocking mode is changed via fcntl.
2019-04-26 07:45:37 -04:00
Corinna Vinschen f527171a93 Cygwin: define MSG_EOR and refuse in send(2)
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-04-25 19:00:08 +02:00
Erik M. Bray 489e7e2048 Minor improvements to socket error handling:
* Change default fallback for failed winsock error -> POSIX error
  mappings to EACCES, which is a valid errno for more socket-related
  syscalls.

* Added a few previously missing entries to the wsock_errmap table
  that have obvious POSIX errno.h analogues.
2019-04-23 17:20:57 +02:00
Ken Brown 9957a7895b Cygwin: FIFO: restart listen_client thread after fork/exec
This allows writers to connect immediately.  Previously the lct wasn't
restarted until the reader attempted to read.
2019-04-22 07:55:58 -04:00
Ken Brown 4443100b53 Cygwin: FIFO: stop the listen_client thread before fork/exec
Add methods need_fixup_before, init_fixup_before, and
fixup_before_fork_exec to accomplish this.  Stopping the thread makes
sure that the client handler lists of the parent and child remain in
sync while the forking/execing is in progress.
2019-04-20 14:31:07 -04:00
Ken Brown 252cd0ce2b Cygwin: FIFO: close connect_evt handles as soon as possible
Keeping them open too long can cause an attempt to close them twice
after a fork or exec.
2019-04-20 14:31:07 -04:00