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2018-11-08Fix v850 target for RTEMScygwin-2_11_2-releaseSebastian Huber
Do not define __ATTRIBUTE_IMPURE_PTR__ for RTMES on the v850 target. The previous definition lead to the following linker error in combination with -fdata-sections: relocation truncated to fit: R_V810_GPWLO_1 against symbol `_global_impure_ptr' defined in .rodata._global_impure_ptr section in libc.a(lib_a-impure.o) relocation truncated to fit: R_V810_GPWLO_1 against symbol `_impure_ptr' defined in .data._impure_ptr section in libc.a(lib_a-impure.o) Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-11-08RTEMS: Avoid <machine/param.h> in <sys/_cpuset.h>Sebastian Huber
The <machine/param.h> header file exposes some unrelated stuff not covered by C or POSIX. Avoid its use in <sys/_cpuset.h> since it is included in <rtems.h>. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-11-06Adjust writeback in non-zero memsetWilco Dijkstra
This fixes an ineffiency in the non-zero memset. Delaying the writeback until the end of the loop is slightly faster on some cores - this shows ~5% performance gain on Cortex-A53 when doing large non-zero memsets. Tested against the GLIBC testsuite.
2018-11-05Cygwin: honor SOCK_NONBLOCK/SOCK_CLOEXEC in socket(2)/socketpair(2)Corinna Vinschen
fhandler_socket_wsock::set_socket_handle calls set_flags after setting the O_NONBLOCK/O_CLOEXEC flags, thus overwriting them. It also turns out that fhandler_socket_wsock::init_events is called too late. The inheritence flags are changed before creating the socket event handling objects. Thus, inheritence flags for those objects are wrong with SOCK_CLOEXEC. Fix this by reordering the calls and setting the file flags through fhandler_base::set_flags. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-11-05newlib/configure.host: Set have_init_fini to no for OpenRISCStafford Horne
The new GCC port for OpenRISC will use the init_fini_array only and not provide the init() and fini() functions. Disable the function usage by default as its no longer needed. Signed-off-by: Stafford Horne <shorne@gmail.com>
2018-10-31Initialize SVE system registers.Tamar Christina
This patch initializes the SVE system registers if available and initializes the vector length to the maximum supported. This is done according to the SVE specification [1]. [1] https://developer.arm.com/docs/ddi0584/latest/arm-architecture-reference-manual-supplement-the-scalable-vector-extension-sve-for-armv8-a
2018-10-29Cygwin: fix memory corruption/SEGV if certain socket functions failCorinna Vinschen
Regression introduced with 2.11.0: The failure paths in socket, socketpair and accept4 functions and methods accidentally release *unused* cygheap_fdmanip objects. The subsequently called dtable::release method was designed to be called for *used* cygheap_fdmanip objects only. Using them on unused objects leads to NULL pointer member dereferencing. Worse, the inet/local accept4 methods only release the cygheap_fdmanip object but neglect to delete the just created fhandler_socket_* object. Fix this by removing the erroneous release calls in the aforementioned failure paths and delete the fhandler_socket_* object in accept4 instead. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-10-29Cygwin: Fix cygheap corruption caused by cloned atomic bufferDavid McFarland
The fhandler_base_overlapped::copyto clears atomic_write_buf on the clone, but none of the derived classes were doing this. This allowed the destructor to double-free the buffer and corrupt cygheap. Clear atomic_write_buf in copyto of all derived classes.
2018-10-22Fix posix_memalign() attributesSebastian Huber
The malloc, alloc_size and alloc_aligned attributes must be only used in case the function returns the pointer to the allocated memory. See also: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87683 Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-22RTEMS: Use function and data sectionsSebastian Huber
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-18newlib/libc/sys/rtems/include/machine/param.h: Add _KERNEL to stop method ↵Joel Sherrill
leakage The following FreeBSD kernel methods are not in any standard and prototypes/definitions were leaking into application space: + round_page() + trunc_page() + atop() + ptoa() + pgtok()
2018-10-18Improve performance of strstrWilco Dijkstra
v3: Add support for read ahead using strnlen, giving an additional 25% speedup on large inputs (both short and long needles). This patch significantly improves performance of strstr by using Sunday's Quick-Search algorithm. Due to its simplicity it has the best average performance of string matching algorithms on almost all inputs. It uses a bad-character shift table to skip past mismatches. The needle length is limited to 254 - this reduces the shift table memory 4 to 8 times, lowering preprocessing overhead and minimizing cache effects. The limit also implies its worst-case performance is linear. Larger needles are processed by the Two-Way algorithm. The macro AVAILABLE has been improved to use strnlen to read the input in chunks. This results in a 2.5 times speedup for large needles, reducing the performance drop when the Quick-Search algorithm can't be used. The code for 1-4 byte needles has been simplified and now uses unsigned char. Since the optimized code relies on 8-bit chars, we defer to the size-optimized implementation if CHAR_BIT > 8. The performance gain of finding a set of randomly chosen words of size 8 in 256 bytes of English text is 14 times on AArch64. For longer haystacks the gain is well over 20 times. The size-optimized strstr has also been rewritten from scratch to improve performance. On the same test the performance gain is 69%. Tested against GLIBC testsuite, randomized tests and the GNULIB strstr test (https://git.savannah.gnu.org/cgit/gnulib.git/tree/tests/test-strstr.c). --
2018-10-11newlib/libc/ctype/jp2uc.c: Declare "cs" variable as "const char *"Christophe Lyon
Instead of "char *" to avoid compiler warnings. This is OK because "cs" is only used as input of strcmp.
2018-10-11Add generic implementation of fdopendir()Sebastian Huber
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-11Add generic implementation of dirfd()Sebastian Huber
Use existing HAVE_OPENDIR define to determine if a generic implementation should be provided. Cygwin for example has its own implementation of opendir() and dirfd(). Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-11RTEMS: Add struct dirent::d_type memberSebastian Huber
This is used by the file system support of libstdc++ for example. Use content from latest FreeBSD <sys/dirent.h> Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-11Move common <sys/dirent.h> content to <dirent.h>Sebastian Huber
Move common content of the various <sys/dirent.h> and the latest FreeBSD <dirent.h> to <dirent.h>. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-11Open a directory with the usual flagsSebastian Huber
Use O_RDONLY since you are not supposed to write to a directory. Use O_DIRECTORY as mandated by POSIX (The Open Group Base Specifications Issue 7, 2018 edition IEEE Std 1003.1-2017): "If the type DIR is implemented using a file descriptor, the descriptor shall be obtained as if the O_DIRECTORY flag was passed to open()." Use O_CLOEXEC as mandated by POSIX: "When a file descriptor is used to implement the directory stream, it behaves as if the FD_CLOEXEC had been set for the file descriptor." Drop the fcntl() call in favour of O_CLOEXEC. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-11Make some standard open() flags visibleSebastian Huber
Make the POSIX O_CLOEXEC, O_NOFOLLOW, O_DIRECTORY, O_EXEC, and O_SEARCH open() flags available also to non-Cygwin systems. Make the BSD/glibc O_DIRECT open() flag available also to non-Cygwin systems. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-10newlib: Build internal strtold code only if HAVE_LONG_DOUBLE definedCorinna Vinschen
Commit fbace81684f8cbb80a2048c01dc545af247f5cb7 ("Import correctly working strtold from David M. Gay.") introduced two new files, strtorx.c and strtodg.c. The functions are only called from strtold.c. However, while strtold.c is only built if HAVE_LONG_DOUBLE is defined, the patch erroneously added the two new files to GENERAL_SOURCES unconditionally. Fix this by building both files only if HAVE_LONG_DOUBLE has been defined. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-10-10newlib: strtold: use __builtin_nanl to avoid libm dependencyCorinna Vinschen
Commit 6c212a8b7873703c4f98c6b68579b234918be83a ("Fix strtod ("nan") and strtold ("nan") returns wrong negative NaN") introduced an unconditional dependency to nanl and, in turn, to libm. Rather than including nanl in libc as well, just call __builtin_nanl from here. Requires GCC 3.3 or later. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-10-10Implement nanl in newlib onlyCorinna Vinschen
Drop Cygwin-specific nanl in favor of a generic implementation in newlib. Requires GCC 3.3 or later. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-10-10Cygwin: lseek: return ESPIPE rather than EINVAL when called on a fifoCorinna Vinschen
Thanks to Henri for tracking this down: https://cygwin.com/ml/cygwin/2018-10/msg00062.html Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-10-10newlib: Drop incorrect const qualifier from __loadlocale parameterCorinna Vinschen
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-10-10Add attributes to malloc-like functionsSebastian Huber
These attributes help static analysis tools to produce less false positives, e.g. double free warnings. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
2018-10-08[Aarch64] Syscalls: fix prototypesChristophe Lyon
This patch is similar the arm one committed recently. 2018-10-08 Christophe Lyon <christophe.lyon@linaro.org> * libgloss/aarch64/syscalls.c (_sbrk): Fix prototype. (_getpid, _write, _swiwrite, _lseek, _swilseek, _read, _wriread): Likewise.
2018-10-08[ARM] Make _kill() a noreturn function.Christophe Lyon
AngelSWI_Reason_ReportException does not return accoring to the ARM documentation, so it is valid to mark _kill() as noreturn. This way, the compiler does not warn about _exit() returning a value despite being noreturn. 2018-10-01 Christophe Lyon <christophe.lyon@linaro.org> * libgloss/arm/_exit.c (_exit): Declare _kill() as noreturn. * libgloss/arm/_exit.c (_kill): Likewise. Remove the return statements. * newlib/libc/sys/arm/syscalls.c (_kill): Likewise..
2018-10-05Define _COMPILING_NEWLIB on aarch64 to define function prototypes from unistd.h.Christophe Lyon
2018-10-01 Christophe Lyon <christophe.lyon@linaro.org> * newlib/configure.host: Define _COMPILING_NEWLIB for aarch64.
2018-10-05 [Aarch64] Fix warning in _sbrkChristophe Lyon
2018-10-01 Christophe Lyon <christophe.lyon@linaro.org> * libgloss/aarch64/syscalls.c (_sbrk): Cast "__heap_limit" to "char *".
2018-10-05 [ARM] Cast string pointers to int to avoid compiler warnings.Christophe Lyon
2018-10-01 Christophe Lyon <christophe.lyon@linaro.org> * newlib/libc/sys/arm/syscalls.c (_unlink): Cast 'path' to int. (_system): Cast 's' to int. (_rename): Cast 'newpath' and 'oldpath' to int.
2018-09-28Update Arm copyright notices in new math filesWilco Dijkstra
While working on the strstr patch I noticed several copyright headers of the new math functions are missing closing quotes after ``AS IS. I've added these. Also update spellings of Arm Ltd in a few places (but still use ARM LTD in upper case portion). Finally add SPDX identifiers to make everything consistent.
2018-09-25Update Arm entry in COPYING.NEWLIB.Jeff Johnston
- per Wilco Dijkstra's patch - update Arm copyright notice to not exclude AArch64 and the various generic contributions made (like the new math functions). Also update the date and change spelling to Arm Ltd.
2018-09-18Fix the documentation comment of checkintSzabolcs Nagy
checkint in pow is not supposed to be used with 0, inf or nan inputs.
2018-09-13Committed, CRIS port: fix fallout from time_t defaulting to 64 bits, part 2Hans-Peter Nilsson
It's been a while... I see the CRIS port broke with the time_t-default-to-64-bit change, observable by a few test-cases in the gcc fortran(!) tests failing, regressing when trying a recent newlib. This is a two-part belt-and-suspenders change: adjust the CRIS port gettimeofday syscall (the only one in newlib/CRIS passing a time_t or struct timeval) to handle a userspace 64-bit time_t and secondly default time_t to 32-bit long anyway. I considered making the local "kernel_timeval" copy in _gettimeofday conditional on (userspace) time_t being 64 bits, but thought it not worth bothering with the few move insns. The effect of a 64-bit time_t is however observable as longer simulation time when running the gcc testsuite and as bigger binaries without any actual upside from the larger time_t size, so I thought better make the default for this port go back to being a "long" again. Tested by running the gcc testsuite over the three combinations of two parts of the patch and observing the expected changes. Committed. newlib: * configure.host (cris, crisv32): Default to "long" time_t. Signed-off-by: Hans-Peter Nilsson <hp@axis.com>
2018-09-13Committed, CRIS port: fix fallout from time_t defaulting to 64 bits, part 1Hans-Peter Nilsson
It's been a while... I see the CRIS port broke with the time_t-default-to-64-bit change, observable by a few test-cases in the gcc fortran(!) tests failing, regressing when trying a recent newlib. This is a two-part belt-and-suspenders change: adjust the CRIS port gettimeofday syscall (the only one in newlib/CRIS passing a time_t or struct timeval) to handle a userspace 64-bit time_t and secondly default time_t to 32-bit long anyway. I considered making the local "kernel_timeval" copy in _gettimeofday conditional on (userspace) time_t being 64 bits, but thought it not worth bothering with the few move insns. The effect of a 64-bit time_t is however observable as longer simulation time when running the gcc testsuite and as bigger binaries without any actual upside from the larger time_t size, so I thought better make the default for this port go back to being a "long" again. Tested by running the gcc testsuite over the three combinations of two parts of the patch and observing the expected changes. Committed. libgloss: Adjust for syscall and userspace having different time_t or timeval. * cris/linunistd.h (kernel_time_t, kernel_suseconds_t, kernel_timeval): New types. (gettimeofday): Change the type of the first argument to be a pointer to a struct kernel_timeval. * cris/gensyscalls (_gettimeofday): Use an intermediate struct kernel_timeval for the syscall and initialize the result from that. Signed-off-by: Hans-Peter Nilsson <hp@axis.com>
2018-09-07Cygwin: console: make sure EnumFontFamiliesExW loop isn't infiniteCorinna Vinschen
The current loop condition is borderline. Make sure it ends and choose a replacement char in the unlikely case the current console font isn't recognized at all. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-07Cygwin: console: store replacement char directlyCorinna Vinschen
Rather than relying on an index variable, store the current replacement char and use that directly in WriteConsoleW. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-07Cygwin: console: don't hang in check_font with raster fontsCorinna Vinschen
EnumFontFamiliesExW fails if the font is "Terminal" (aka "Raster Fonts") and lfCharSet requests ANSI_CHARSET. Using DEFAULT_CHARSET fixes this. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-06search: Fix Berkeley DB hash code for 16-bit targets.Jon Beniston
hash.h: Use 32-bit type for data stored on disk, so code works for 16 and 64-bit targets. Reduce maximum bucket size on 16-bit targets, so it fits in available memory. hash.c: Check bucket size isn't too big for target. hash_buf.c: Fix overflow warning on 16-bit targets.
2018-09-06Use !__HAVE_LOCALE_INFO__ define to use _ctype_ directly [v2]Keith Packard
When __HAVE_LOCALE_INFO__ is not selected, directly access the existing _ctype_ variable from __locale_ctype_ptr() and __locale_ctype_ptr_l(), eliminating the need for any locale or reent structure Signed-off-by: Keith Packard <keithp@keithp.com> v2: locale: fix conflict with __locale_ctype_ptr macro If we are building without __HAVE_LOCALE_INFO__, there is a macro providing __locale_ctype_ptr which in turn fouls up this declaration. Signed-off-by: Michael Lyle <mlyle@lyle.org>
2018-09-06stdlib: Use __get_numeric_locale instead of __localeconv_l for decimal_pointKeith Packard
The string/float conversion functions need to get the locale decimal point. Instead of calling __localeconv_l (which copies locale data into lconv form from __get_numeric_locale), use __get_numeric_locale directly. Signed-off-by: Keith Packard <keithp@keithp.com>
2018-09-06Include sys/syslimits.h in limits.hKeith Packard
This makes sure any system-defined limits are specified before the defaults are checked. Without this, ARG_MAX and PATH_MAX end up getting the default definitions from limits.h rather than the defines from syslimits.h. This could potentially cause problems when different files used different values for the same name. Signed-off-by: Keith Packard <keithp@keithp.com>
2018-09-06xdr_private.h needs sys/types.h for u_charKeith Packard
u_char is defined in sys/types.h, which doesn't appear to get included, at least in my environments. Signed-off-by: Keith Packard <keithp@keithp.com>
2018-09-06Document the log table generation methodSzabolcs Nagy
Add comments with enough detail so the log lookup tables can be recreated.
2018-09-06stdlib/arc4random.c: Fix reseed count for 16-bit targets.Jon Beniston
2018-09-06Cygwin: console: device context is process privateCorinna Vinschen
Make sure device context is not copied to forked process. It is a process-specific datastructure. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-05Cygwin: console: improve replacement char algorithmCorinna Vinschen
Try various Unicode characters which may be used as a replacement character in case an invalid character has to be printed. Current list is 0xfffd "REPLACEMENT CHARACTER", 0x25a1 "WHITE SQUARE", and 0x2592 "MEDIUM SHADE" in that order. Additionally workaround a problem with some fonts (namely DejaVu Sans Mono) which are returned wit ha broken fontname with trailing stray characters. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-05Cygwin: console: use UNICODE API throughoutCorinna Vinschen
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-05Cygwin: Bump DLL version to 2.11.2Corinna Vinschen
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2018-09-05Improve strstr performance of short needlesWilco Dijkstra
Improve strstr performance for the common case of short needles. For a single character strchr is best, for 2-4 characters a small loop is fastest. For these the speedup over the Two-Way algorithm is ~10 times on large strings. Newlib builds, the new code passes GLIBC testsuite. OK for commit?
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