Julian Brown [Fri, 9 Dec 2016 13:54:17 +0000 (13:54 +0000)]
Big-endian fix for memcpy-armv7m.S
In the case of memcpy-armv7m.S being built for a big-endian multilib
(including armv7 without a specific profile), realignment code made
assumptions about the byte ordering being little-endian.
Jon Turney [Tue, 6 Dec 2016 15:06:26 +0000 (15:06 +0000)]
Fix 'make man' for parallel make
Ensure the Python Lex/Yacc (PLY) cache used by makedocbook is initialized
before it is used by parallelizable rules to make the DocBook XML, as it
appears that these can collide in cache generation, leading to errors.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Sebastian Huber [Thu, 24 Nov 2016 09:58:35 +0000 (10:58 +0100)]
Self-contained pthread_spinlock_t for RTEMS
Turn pthread_spinlock_t into a self-contained object. On uni-processor
configurations, interrupts are disabled in the lock/trylock operations
and the previous interrupt status is restored in the corresponding
unlock operations. On SMP configurations, a ticket lock is a acquired
and released in addition.
See also:
https://devel.rtems.org/ticket/2674
This implementation is simple and efficient. However, this test case of
the Linux Test Project would fail due to call of printf() and sleep()
during spin lock ownership:
Sebastian Huber [Wed, 16 Nov 2016 13:51:31 +0000 (14:51 +0100)]
Move pthread types to <sys/_pthreadtypes.h>
This makes it possible provide operating system specific types for
<pthread.h>. It is in line with the FreeBSD header file structure and
allows a future cleanup of <pthread.h> to not expose unrelated things
via <sys/types.h> and <unistd.h>. Glibc uses the similar
<bits/pthreadtypes.h> for this purpose.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
Sebastian Huber [Thu, 17 Nov 2016 10:21:28 +0000 (11:21 +0100)]
Add _TICKET_LOCK_INITIALIZER to <sys/lock.h>
Add _TICKET_LOCK_INITIALIZER to statically initialize a
_Ticket_lock_Control structure. This makes it possible to embed a
ticket lock in other structures outside of <sys/lock.h>.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
After a lot of fiddling the reason appears to be the combination of concept
and function index despite a lack of concept index entries. Arguably texinfo
should not error in that case but here we are, newlib will fail to build its
documentation on some systems because of this. Since libc.texinfo only
contains function index entries this patch simply removes the combination of
indices. It does the same for libm.texinfo which has concept index entries but
no function index entries.
Tested by running make pdf, make dvi, make info and make html successfully.
libc.pdf appears to have only one index as expected.
== Proposed commit message ==
Fix pdf build failure with texinfo 6.1.0 as provided in Ubuntu 16.04. Index
combination in libc.texinfo and libm.texinfo fails because both file have only
one type of index entries. Removing index combination is thus harmless and
solves the problem.
Corinna Vinschen [Sat, 22 Oct 2016 18:22:20 +0000 (20:22 +0200)]
Fix check for empty locale string in newlocale
The original test is broken. It tests for a NULL locale which
isn't just wrong, it simply can't occur at this point due to an
earlier check for a NULL locale string. Thus, the locale info
for a category is never taken from the environment.
Ken Brown [Thu, 20 Oct 2016 19:35:54 +0000 (15:35 -0400)]
Add _PC_CASE_INSENSITIVE to [f]pathconf
Update the getconf utility to support the new flag as well as
_PC_POSIX_PERMISSIONS and _PC_POSIX_SECURITY. These were previously
unsupported, probably as an oversight.
Corinna Vinschen [Wed, 19 Oct 2016 11:26:03 +0000 (13:26 +0200)]
Don't check directories always case-insensitive in rename(2)
Long-standing problem in one of the corner cases of rename(2):
If we rename a directory a check is performed to see if newpath is
identical to oldpath or a subdir of oldpath. This check is
(accidentally? no hints anywhere in ChangeLogs or code) performed
case-insensitive for as long as we use Unicode paths and NT functions.
This leads to the problems described in
https://cygwin.com/ml/cygwin/2016-09/msg00264.html
Change this to be conditional case-sensitive as all other checks but
let's take this with a grain of salt. There may be corner-cases in
this corner-case which require to chek parts of the path always
case-insensitive. Off the top of my head I can't construct such a
case but that's no proof they don't exist :}
Corinna Vinschen [Wed, 19 Oct 2016 10:48:40 +0000 (12:48 +0200)]
Fix regression in console charset handling
Commit d16a5630 dropped usage of cygheap's locale functions
in favor of local on-the-fly usage of UTF-8 instead of ASCII.
This allowed to use the current local rather than a fixed
system-wide locale set at startup time. d16a5630 just missed
to add the ASCII->UTF-8 conversion in the console as well.
_ctype_b is defined in ctype_.c as a const char array for non cygwin
targets allowing negative ctype index but as a char array for the same
targets in ctype_.h, giving type conflict at compile time. This is
because the cygwin targets are not treated specially in the latter file.
This patch adds the necessary logic for cygwin targets in ctype_.h.
On 09/02/2016 11:03 AM, Corinna Vinschen wrote:
> On Sep 2 10:46, Michael Haubenwallner wrote:
>> On 09/01/2016 03:32 PM, Corinna Vinschen wrote:
>>> You could just use the global variable program_invocation_name. If in
>>> doubt, use the Windows path global_progname and convert it to full POSIX
>>> via cygwin_conv_path.
>>
>> Patch updated, using global_progname now.
>
> Looks good and you're right to do it this way since I just noticed
> that program_invocation_name may return a relative pathname.
Yep.
> Btw., in other calls which require the full POSIX path we use
> mount_table->conv_to_posix_path instead of cygwin_conv_path (see
> e. g. fillout_pinfo()). It's a bit faster. Maybe something for a
> followup patch.
No problem - attached.
This renders the original patch 4/4 valid again.
> Note for some later improvement: I really wonder why we don't store
> the absolute POSIX path of the current executable globally yet...
Same here.
Thanks!
/haubi/
>From f7255edd33cb4abe34f27188aab8dccdfa5dd2a0 Mon Sep 17 00:00:00 2001
From: Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com>
Date: Wed, 31 Aug 2016 18:05:11 +0200
Subject: [PATCH 3/4] dlopen: on x/lib search x/bin if exe is in x/bin
Instead of find_exec, without changing behaviour use new pathfinder
class with new allocator_interface around tmp_pathbuf and new vstrlist
class.
* pathfinder.h (pathfinder): New file.
* vstrlist.h (allocator_interface, allocated_type, vstrlist): New file.
* dlfcn.cc (dlopen): Avoid redundant GetModuleHandleExW with RTLD_NOLOAD
and RTLD_NODELETE. Switch to new pathfinder class, using
(tmp_pathbuf_allocator): New class.
(get_full_path_of_dll): Drop.
Corinna Vinschen [Wed, 31 Aug 2016 10:15:29 +0000 (12:15 +0200)]
strace: Don't print exception info for SetThreadName exception
The new functionality to set the thread name for debugging purposes
creates exception debugging events. These are printed out when running
strace. Since these exceptions have nothing to do with real exceptions
but are, like breakpoint execptions, expected and non-fatal, don't print
exception info for them.
Corinna Vinschen [Wed, 31 Aug 2016 10:08:34 +0000 (12:08 +0200)]
Fix passwd getting error 1265 when running on newer Windows
On Windows 8.1 and later, the NetUserChangePassword call apparently
doesn't accept the usual "\\server" string anymore, but requires to
use the "domain" instead, otherwise it emits en error code 1265,
ERROR_DOWNGRADE_DETECTED. Since this is accepted by pre-8.1 as well,
use the domain indiscriminately when calling NetUserChangePassword
from passwd(1).
Yaakov Selkowitz [Mon, 29 Aug 2016 20:30:59 +0000 (15:30 -0500)]
Fix off_t typedef on Cygwin64
While both long and long long are 64-bits on x86_64, they are distinct types,
and long was used prior to commit 477463a2011ba81907a753df9ce7a71b6563db54.
Changing this breaks the linking of previously compiled C++ functions with
off_t arguments on 64-bit Cygwin with newly compiled code, as the mangling of
long (l) and long long (x) differ.
Jon Turney [Thu, 25 Aug 2016 09:06:47 +0000 (10:06 +0100)]
Fix SetThreadName with current gdb
Wrap SetThreadName()'s call to RaiseException() in __try/__except/__endtry,
so that if the attached debugger doesn't know about MS_VC_EXCEPTION (e.g.
current gdb and probably strace as well) and continues exception processing,
we ignore it, rather than dying due an unhandled exception.
Also remove an unnecessary cast in the RaiseException() invocation.
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
Corinna Vinschen [Wed, 24 Aug 2016 17:46:55 +0000 (19:46 +0200)]
Avoid crash when calling __localeconv_l with __C_locale
__C_locale is const. Thus, overwriting the lconv values in __localeconv_l
will try to write to a R/O region. Given the lconv values in __C_locale
are initialized, there's no reason to write them in __localeconv_l at all.
Just return &__C_locale.lconv.
Corinna Vinschen [Tue, 23 Aug 2016 10:49:23 +0000 (12:49 +0200)]
Add __get_C_locale inline function and fix new locale code for !_MB_CAPABLE targets
Only access "C" locale using the new __get_C_locale inline function.
Enable __global_locale for !_MB_CAPABLE targets. Accommodate !_MB_CAPABLE
targets in new locale code.
Jon Turney [Wed, 27 Jul 2016 23:40:23 +0000 (00:40 +0100)]
Send thread names to debugger
GDB since commit 24cdb46e [1] can report and use these names.
Add utility function SetThreadName(), which sends a thread name to the
debugger.
Use that:
- to set the default thread name for main thread and newly created pthreads.
- in pthread_setname_np() for user thread names.
- for helper thread names in cygthread::create()
- for helper threads which are created directly with CreateThread.
Note that there can still be anonymous threads, created by system or
injected DLLs.
Jon Turney [Mon, 22 Aug 2016 17:43:05 +0000 (18:43 +0100)]
Add pthread_getname_np and pthread_setname_np
This patch adds pthread_getname_np and pthread_setname_np.
These were added to glibc in 2.12[1] and are also present in some form on
NetBSD and several UNIXes.
The code is based on NetBSD's implementation with changes to better match
Linux behaviour.
Implementation quirks:
* pthread_setname_np with a NULL pointer segfaults (as linux)
* pthread_setname_np returns ERANGE for names longer than 16 characters (as
linux)
* pthread_getname_np with a NULL pointer returns EFAULT (as linux)
* pthread_getname_np with a buffer length of less than 16 returns ERANGE (as
linux)
* pthread_getname_np truncates the thread name to fit the buffer length.
This guarantees success even when the default thread name is longer than 16
characters, but means there is no way to discover the actual length of the
thread name. (Linux always truncates the thread name to 16 characters)
* Changing program_invocation_short_name changes the default thread name (on
linux, it has no effect on the default thread name)
I'll leave it up to you to decide if any of these matter.
This is implemented via class pthread_attr to make it easier to add
pthread_attr_[gs]etname_np (present in NetBSD and some UNIXes) should it
ever be added to Linux (or we decide we want it anyway).
git://sourceware.org / newlib-cygwin.git / log