Joseph Myers [Thu, 12 Nov 2015 12:09:24 +0000 (12:09 +0000)]
Avoid .eh_frame in ARM newlib.
ARM newlib has various strcmp implementations that use .cfi_*
directives to generate unwind information.
The effect of this is that the generated objects contain .eh_frame
sections. However, ARM uses its own unwind info format, not
.eh_frame, which is generated by ARM-specific directives, not .cfi_*.
The .eh_frame sections are useless, but also not removed by strip and
may be loaded into memory at runtime.
This patch fixes this by using .cfi_sections .debug_frame (as in
glibc) so that the directives generate .debug_frame instead.
.debug_frame is useful for the debugger, can be removed by strip, and
is not loaded into memory at runtime.
Corinna Vinschen [Thu, 12 Nov 2015 10:48:30 +0000 (11:48 +0100)]
Fix crash at process init on 64 bit XP/2003 under WOW64
* init.cc (munge_threadfunc): Don't call NtQueryInformationThread with
ThreadQuerySetWin32StartAddress info class on XP 64 and Server 2003 64.
It crashes.
The patch cleans up the auto configury mechanism used to select
different implementations of memchr for various architecture versions.
The approach here is to remove the selection of memchr within automake
and instead use complimentary logic in memchr-stub.c and memchr.S to
choose between the gerneric memchr.c implementation or one of the
architecture specific implementations.
This patch also changes the selection criteria inline with the
previous proposal here:
Regressed for armv7-a armv5 armv8-a, correct selection of memcpy
implementation by manual inspection of a test program built for these
three architectures.
Marcus Shawcroft [Fri, 30 Oct 2015 15:14:53 +0000 (15:14 +0000)]
Reorganize memcpy selection.
This patch cleans up the auto configury mechanism used to select
different implementations of memcpy for various architecture versions.
The approach here is to remove the selection of memcpy within automake
and instead use complimentary logic in memcpy-stub.c and memcpy.S to
choose between the generic memcpy.c implemenation or one of the
architecture specific memcpy*.S implemenations.
Regressed for armv7-a armv5 armv8-a, correct selection of memcpy
implementation by manual inspection of a test program built for these
three architectures.
This revised patch flips the remaining preprocessor logic in
memcpy-stub.c to use ACLE defines as requested in the previous review
and removes the now disused HAVE_ARMV7A and HAVE_ARMV8A configure.in
support.
Fix iterating over pending signals if a signal doesn't have to be cleared
* sigproc.cc (pending_signals::clear): Yet another fix to fix the fix.
Actually iterate over the list of pending signals even if there's a
signal which doesn't have to be cleared. Other than that, revert loop
to it's former self as a while loop.
Corinna Vinschen [Fri, 30 Oct 2015 19:13:26 +0000 (20:13 +0100)]
Workaround bug in LocaleNameToLCID on Windows 10
* nlsfuncs.cc (__get_lcid_from_locale): Handle LocaleNameToLCID
returning LOCALE_CUSTOM_UNSPECIFIED instead of failing in case of
an unsupported locale on Windows 10.
Corinna Vinschen [Fri, 30 Oct 2015 15:05:43 +0000 (16:05 +0100)]
Fix sigwait and pthread_kill return values in case of error
* signal.cc (sigwait): Fix return value to reflect errno in case of
error according to POSIX. Never return EINTR.
* thread.cc (pthread_kill): Return errno if sig_send failed.
Qian Hong [Thu, 29 Oct 2015 08:17:46 +0000 (09:17 +0100)]
Check for correct funtion entry address in munge_threadfunc
* init.cc (munge_threadfunc): Check that we're actually replacing
the correct original function address on the stack.
* ntdll.h (enum _THREADINFOCLASS): Add ThreadQuerySetWin32StartAddress.
Corinna Vinschen [Fri, 23 Oct 2015 12:30:40 +0000 (14:30 +0200)]
Clear pending signals targeting exiting thread
* cygtls.cc (_cygtls::remove): Call remove_pending_sigs.
* cygtls.h (_cygtls::remove_pending_sigs): Declare.
* sigproc.cc (pending_signals::clear): Define new method taking a
_cygtls pointer argument. Drop pending signals for that thread.
(_cygtls::remove_pending_sigs): Call pending_signals::clear for this
thread.
Corinna Vinschen [Thu, 22 Oct 2015 12:22:07 +0000 (14:22 +0200)]
Fix length returned from sys_cp_wcstombs in case nwc > # of wchars
* strfuncs.cc (sys_cp_wcstombs): Always return number of multibytes
without trailing NUL as the documentation implies. Throughout Cygwin,
fix usage to align to this pattern.
* fhandler_process.cc (format_process_winexename): Drop trailing NUL
and LF from output.
Sebastian Huber [Wed, 14 Oct 2015 05:39:37 +0000 (07:39 +0200)]
C11 aligned_alloc() implementation
aligned_alloc() is implemented in terms of posix_memalign() which is
only declared in <stdlib.h> but not defined in Newlib in general. At
least Linux and RTEMS implement this function.
newlib/ChangeLog
2015-10-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
Sebastian Huber [Wed, 14 Oct 2015 05:39:35 +0000 (07:39 +0200)]
C11 quick_exit() support for <stdlib.h>
Import some <stdlib.h> function declarations from latest FreeBSD and
implement them. I am not sure if we should call the global reent
cleanup in quick_exit() similar to exit().
newlib/ChangeLog
2015-10-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
flock.cc: Fix stack allocation from callee used in caller
* flock.cc (lockf_t::create_lock_obj_attr): Add buffer parameter.
Call _everyone_sd with buffer argument from caller rather than
everyone_sd with locally allocated stack buffer.
(lockf_t::create_lock_obj): Call create_lock_obj_attr only once
outside the loop and with additional buffer argument.
(lockf_t::open_lock_obj): Call create_lock_obj_attr with additional
buffer argument.
Corinna Vinschen [Sat, 29 Aug 2015 07:16:47 +0000 (09:16 +0200)]
Allow sysconf to return CPU cache information
* include/sys/unistd.h (_SC_LEVEL*): Add cache-related variables as
on Linux.
* fhandler_proc.cc (format_proc_cpuinfo): Fetch cache information
from new cache functions in sysconf.cc, get_cpu_cache_intel and
get_cpu_cache_amd.
* sysconf.cc (__nt_query_system): New local helper.
(get_nproc_values): Utilize __nt_query_system on pre-Windows 7 systems.
Use GetLogicalProcessorInformationEx otherwise to handle more than
64 CPUs. Only handle _SC_NPROCESSORS_CONF and _SC_NPROCESSORS_ONLN.
(get_phys_pages): New helper to handle _SC_PHYS_PAGES.
(cpuid2_cache_descriptor): New array to map Intel CPUID 2 descriptor
values to cache type, cache size, associativity and linesize.
(cpuid2_cache_desc_compar): Comparision function for bsearch over
cpuid2_cache_descriptor.
(get_cpu_cache_intel_cpuid2): New function to fetch cache info from
Intel CPUID 2.
(get_cpu_cache_intel_cpuid4): Ditto from Intel CPUID 4.
(get_cpu_cache_intel): New function as CPU-specific entry point.
(assoc): New array to map associativity values from AMD CPUID
0x80000006.
(get_cpu_cache_amd): New function to fetch cache info from AMD CPUIDs
0x80000005 and 0x80000006.
(get_cpu_cache): New function to fetch cache info.
(sca): Call get_phys_pages if _SC_PHYS_PAGES is requested. Call
get_cpu_cache for new _SC_* cache requests.
(SC_MAX): Set to _SC_LEVEL4_CACHE_LINESIZE.
(get_phys_pages(void)): Call get_phys_pages(int).
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
Corinna Vinschen [Thu, 27 Aug 2015 11:34:10 +0000 (13:34 +0200)]
Implement POSIX_MADV_WILLNEED/POSIX_MADV_DONTNEED for newer OSes
* autoload.cc (DiscardVirtualMemory): Import.
(PrefetchVirtualMemory): Import.
* mmap.cc (posix_madvise): Actually implement POSIX_MADV_WILLNEED
utilizing PrefetchVirtualMemory and POSIX_MADV_DONTNEED utilizing
DiscardVirtualMemory on systems supporting them.
* wincap.h (wincaps::has_broken_prefetchvm): New element.
* wincap.cc: Implement above element throughout.
(wincapc::init): Make sure has_broken_prefetchvm is only true on
W10 under WOW64.
* include/cygwin/version.h (CYGWIN_VERSION_DLL_MAJOR): Bump to 2003.
(CYGWIN_VERSION_API_MINOR): Reset to 0.
* new-features.xml (ov-new2.3): New section, document posix_madvise
POSIX_MADV_WILLNEED/POSIX_MADV_DONTNEED change.
Corinna Vinschen [Thu, 27 Aug 2015 10:55:22 +0000 (12:55 +0200)]
strlen-armv7.S: Fix preprocessor check
Hi!
I've got the situation, that the function strlen() occurs twice in libc.a
(building newlib for ARM-V7a and Size-Optimized).
In newlib/libc/machine/arm/strlen.c there are the pre-processor stetements ...
#if defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) || \
(defined (__thumb__) && !defined (__thumb2__))
/*...*/
#else
and in newlib/libc/machine/arm/strlen-armv7.S the "exclude" begins with
/* NOTE: This ifdef MUST match the ones in arm/strlen.c
We fallback to the one in arm/strlen.c for size optimised or
for older architectures. */
#if defined(_ISA_ARM_7) || defined(__ARM_ARCH_6T2__) && \
!(defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) || \
(defined (__thumb__) && !defined (__thumb2__)))
But this is not completely contrary to arm/strlen.c (see above)!
To fix the logical statement in arm/strlen-armv7.S there are parentheses needed
Corinna Vinschen [Tue, 25 Aug 2015 20:15:22 +0000 (22:15 +0200)]
autload.cc: Avoid clobbering return address in noload on i686
This fixes a long-standing problem when GetProcAddress fails
to load a function. The noload code calls SetLastError on
i686 without saving the edx register. Starting with Windows 7,
SetLastError apparently uses $edx and the register is set to
0x00000000 on return. So the subsequent `jmp *$edx' in noload
supposed to return to the caller, actually jumps to address NULL,
which results in a SEGV.
* autoload.cc (noload): i686 only: Save and restore $edx when calling
SetLastError to avoid clobbering return address stating with Windows 7.
James Greenhalgh [Tue, 25 Aug 2015 13:31:11 +0000 (14:31 +0100)]
Always declare "kill" in include/sys/signal.h
Hi,
As I mentioned recently [1], newlib is providing a "kill" symbol to link
against, without declaring "kill" in signal.h. This is confusing for the
libgfortran build, which tries to link against kill (which succeeds), then
tries to use it (which triggers -Werror=implicit-function-declaration).
This patch implements my suggestion in that thread - making the declaration
of 'kill' in libc/include/sys/signal.h unconditional.
I've tested this by building a modified libgfortran on AArch64/ARM to see
that the Werror goes away, and the libgfortran build succeeds.
Is something like this OK for newlib? If so, can someone please commit
it on my behalf, as I have no commit access here.
Otherwise, what is your preferred direction for me to take this patch?
Corinna Vinschen [Mon, 24 Aug 2015 16:37:53 +0000 (18:37 +0200)]
Fix hang stracing forking processes but not following child
* ntdll.h (PROCESSINFOCLASS): Define ProcessDebugFlags.
* sigproc.cc (child_info::child_info): Only propagate _CI_STRACED to
child if strace is actually tracing child processes.
Jon TURNEY [Tue, 11 Aug 2015 13:55:23 +0000 (14:55 +0100)]
Manuals failing to build on Ubuntu LTS 14.04
On 11/08/2015 11:08, Andre Vieira wrote:
> On 10/08/15 14:38, Jon TURNEY wrote:
>> On 07/08/2015 11:13, Andre Vieira wrote:
>>> Building the manuals on Ubuntu LTS 14.04 (64-bit) using pdfTeX
>>> 3.1415926-2.5-1.40.14 (TeX Live 2013/Debian) is failing with the
>>> following error:
>>> "Transcript written on libc.log.
>>> /usr/bin/texi2dvi: pdfetex exited with bad status, quitting."
>>>
>>> libc.log complaints about the following:
>>>
>>> You can't use `@unskip' in vertical mode.
>>>
[...]
>>>
>>> This code has been around for a while, so it might have to do with a
>>> change in pdfTex?
So it seems this problem has been around for a while, and looks like it
is due to a change in texi2dvi in texinfo 5.0 or late 4.x, see [1].
I guess it's not very noticeable since it only occurs when doing 'make
dvi', which doesn't happen by default.
Attached is a different and perhaps cleaner workaround to the one in
that thread.
From 4d386b5900b6c68e022004b447faa696be5ff8c7 Mon Sep 17 00:00:00 2001
From: Jon TURNEY <jon.turney@dronecode.org.uk>
Date: Tue, 11 Aug 2015 14:46:39 +0100
Subject: [PATCH] Use '@sp 1' rather than '@*' to workaround a change in
texi2dvi.
Since about TexInfo 5.0, using '@*' immediately after a table causes a 'You
can't use `@unskip' in vertical mode' error.
See https://sourceware.org/ml/newlib/2013/msg00057.html
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Andre Vieira [Wed, 5 Aug 2015 12:22:43 +0000 (13:22 +0100)]
Use machine header file for param configuration.
On 31/07/15 10:34, Richard Earnshaw wrote:
> On 31/07/15 10:28, Andre Vieira wrote:
>> newlib/ChangeLog:
>> 2015-07-28 Andre Vieira <andre.simoesdiasvieira@arm.com>
>>
>> * libc/sys/arm/sys/param.h: Include machine/param.h
>> (HZ, NOFILE, PATHSIZE): Define.
>>
>> param_refactor_1.patch
>>
>>
>> From abc2d5f3398721f6ca891b9581feaba58730b19c Mon Sep 17 00:00:00 2001
>> From: Andre Simoes Dias Vieira <andsim01@arm.com>
>> Date: Tue, 28 Jul 2015 12:10:59 +0100
>> Subject: [PATCH 1/2] Moved param configuration to machine/param.h
>>
>> ---
>> newlib/libc/sys/arm/sys/param.h | 12 ++++++++++--
>> 1 file changed, 10 insertions(+), 2 deletions(-)
>>
>> diff --git a/newlib/libc/sys/arm/sys/param.h b/newlib/libc/sys/arm/sys/param.h
>> index adc066e9a8756e07edaaa8cadc79b5f05c996ac9..622c371972ab3c9dbb93ea5c51323a593e2a171a 100644
>> --- a/newlib/libc/sys/arm/sys/param.h
>> +++ b/newlib/libc/sys/arm/sys/param.h
>> @@ -3,9 +3,17 @@
>> #ifndef _SYS_PARAM_H
>> # define _SYS_PARAM_H
>>
>> -# define HZ (100)
>> -# define NOFILE (60)
>> +#include <machine/param.h>
>> +
>> +#ifndef HZ
>> +# define HZ (60)
>
> Why have you changed the value for HZ? It seems that, by convention,
> ARM boards have always used 100.
>
> R.
>
>> +#endif
>> +#ifndef NOFILE
>> +# define NOFILE>(60)
>> +#endif
>> +#ifndef PATHSIZE
>> # define PATHSIZE (1024)
>> +#endif
>>
>> #define BIG_ENDIAN 4321
>> #define LITTLE_ENDIAN 1234
>>
>
Hi Richard,
ARM's machine/param.h that is included in "#include <machine/param.h>",
before the 'ifndef' already defines HZ to be 100. This file was already
there, it was just not being used. I understand that this 'ifndef' might
be confusing, though I decided to add it to mimic the behavior of the
default sys/param.h.
There is however an unrelated issue with this patch, a typo in the
"#define NOFILE" that crept in there due to some copy pasting when
splitting the patch.
Here is a fixed version.
BR,
Andre
newlib/ChangeLog:
2015-07-28 Andre Vieira <andre.simoesdiasvieira@arm.com>
* libc/sys/arm/sys/param.h: Include machine/param.h
(HZ, NOFILE, PATHSIZE): Define.
From abc2d5f3398721f6ca891b9581feaba58730b19c Mon Sep 17 00:00:00 2001
From: Andre Simoes Dias Vieira <andsim01@arm.com>
Date: Tue, 28 Jul 2015 12:10:59 +0100
Subject: [PATCH 1/2] Moved param configuration to machine/param.h
Corinna Vinschen [Mon, 17 Aug 2015 20:45:02 +0000 (22:45 +0200)]
Don't call LsaLookupSids if we're not utilizing Windows account DBs
* grp.cc (internal_getgrfull): Drop asking caches. Explain why.
(internal_getgroups): In case we're not utilizing the Windows account
DBs, don't call LsaLookupSids but iterate over the group SIDs in the
token and call internal_getgrsid for each of them. Explain why.
Corinna Vinschen [Mon, 17 Aug 2015 18:24:49 +0000 (20:24 +0200)]
Try harder to avoid LDAP access for RFC2307 mapping
* fhandler_disk_file.cc (fhandler_base::fstat_by_nfs_ea): Rearrange
to fall back to myself uid/gid in case we don't utilize Windows
account DBs, just as prior to 1.7.34.
* sec_helper.cc (cygpsid::get_id): Disable Samba user/group mapping per
RFC2307 if we're not utilizing Windows account DBs.
* security.cc (convert_samba_sd): Revert previous patch.
Corinna Vinschen [Sat, 15 Aug 2015 10:30:09 +0000 (12:30 +0200)]
Cygwin: Try to fix potential data corruption in pipe write
* fhandler.cc (fhandler_base_overlapped::raw_write): When performing
nonblocking I/O, copy user space data into own buffer. Add longish
comment to explain why.
* fhandler.h (fhandler_base_overlapped::atomic_write_buf): New member.
(fhandler_base_overlapped::fhandler_base_overlapped): Initialize
atomic_write_buf.
(fhandler_base_overlapped::fhandler_base_overlapped): New destructor,
free'ing atomic_write_buf.
(fhandler_base_overlapped::copyto): Set atomic_write_buf to NULL in
copied fhandler.
Corinna Vinschen [Fri, 14 Aug 2015 19:41:37 +0000 (21:41 +0200)]
Don't perform RFC2307 account mapping without account DB
* fhandler_disk_file.cc (fhandler_base::fstat_by_nfs_ea): Only try
to map user and group info per RFC2307 if account info is fetched
from Windows account DB.
(convert_samba_sd): Ditto.
Corinna Vinschen [Thu, 13 Aug 2015 15:59:47 +0000 (17:59 +0200)]
Fix /proc/cpuinfo topology and cache size info
* autoload.cc (GetLogicalProcessorInformationEx): Import.
(SetThreadGroupAffinity): Import.
* fhandler_proc.cc (add_size): New macro.
(get_msb): New inline function.
(mask_bits): Ditto.
(format_proc_cpuinfo): Drop handling of old CPUs. Check if we're
running on a OS version supporting porcessor groups. If so, use
SetThreadGroupAffinity to set thread affinity. Improve cache info
to include 3rd level cache on Intel CPUs. Improve multi core info.
* wincap.h (wincaps::has_processor_groups): New element.
* wincap.cc: Implement above element throughout.
git://sourceware.org / newlib-cygwin.git / log