| Commit message (Collapse) | Author | Age | Files | Lines |
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* newlib/libc/stdio/findfp.c (__sinit): Add the Cygwin-specific __SCLE
(stream convert line endings) flag when calling the std function to
initializing the reent structure's _stdin, _stdout and _stderr members.
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* newlib/libc/stdio/flags.c (__sflags): Enable for
Cygwin the piece of code which adds the O_TEXT
mode if O_BINARY is not present. And, also, fix that
piece of code's incorrect use of the | operator to
test a flag instead of &.
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The Makefile.am contained two rules for the vfwscanf object.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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In Newlib, the stdio streams are defined to thread-specific pointers
_reent::_stdin, _reent::_stdout and _reent::_stderr. In case
_REENT_SMALL is not defined, then these pointers are initialized via
_REENT_INIT_PTR() or _REENT_INIT_PTR_ZEROED() to thread-specific FILE
objects provided via _reent::__sf[3]. There are two problems with this
(at least in case of RTEMS).
(1) The thread-specific FILE objects are closed by _reclaim_reent().
This leads to problems with language run-time libraries that provide
wrappers to the C/POSIX stdio streams (e.g. C++ and Ada), since they
use the thread-specific FILE objects of the initialization thread. In
case the initialization thread is deleted, then they use freed memory.
(2) Since thread-specific FILE objects are used with a common output
device via file descriptors 0, 1 and 2, the locking at FILE object level
cannot ensure atomicity of the output, e.g. a call to printf().
Introduce a new Newlib configuration option _REENT_GLOBAL_STDIO_STREAMS
to enable the use of global stdio FILE objects.
As a side-effect this reduces the size of struct _reent by more than
50%.
The _REENT_GLOBAL_STDIO_STREAMS should not be used without
_STDIO_CLOSE_PER_REENT_STD_STREAMS.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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This simplifies further changes in this area.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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This reverts commit efaef1bba263501e1e7264833ddfc9b8c20f9ebc.
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Don't over-read memory returned by _DTOA_R, and never write to it
since the result might be a string literal.
For example, when doing:
swprintf(tt, 20, L"%.*f", 6, 0.0);
we will get back "0".
Instead, write the result returned by _DTOA_R to the output buffer.
After this, write the 0 chars directly to the the output buffer
(if there are any). This also has the (marginal) advantage that
we read/write less memory overall.
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- We don't want any padding in struct ldieee, otherwise the offset
might wrong in most compiler.
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Some architectures like ARM encode the short enum option state in the
object file and the linker checks that this option is consistent for all
objects of an executable. In case applications use -fno-short-enums,
then this leads to linker warnings. Use the enum __packed attribute for
the relevent enums to avoid the -fshort-enums compiler option. This
attribute is at least available on GCC, LLVM/clang and the Intel
compiler.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
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In preparation for the patch that would allow retargeting of locking
routines, rename all lock objects to follow this pattern:
"__<name>_[recursive_]mutex".
Following locks were renamed:
__dd_hash_lock -> __dd_hash_mutex
__sfp_lock -> __sfp_recursive_mutex
__sinit_lock -> __sinit_recursive_mutex
__atexit_lock -> __atexit_recursive_mutex
_arc4random_mutex -> __arc4random_mutex
__env_lock_object -> __env_recursive_mutex
__malloc_lock_object -> __malloc_recursive_mutex
__atexit_mutex -> __at_quick_exit_mutex
__tz_lock_object -> __tz_mutex
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__sinit initialises some common file descriptors as line buffered and
relies on the first users of such FDs to call __smakebuf_r. If
__smakebuf_r realises there's no space for a buffer (malloc returns
NULL), it makes them unbuffered. However, while setting the __SNBF
bit, it doesn't clear the __SLBF bit in the flags. Depending on the
order in which functions check buffering flags in the FD, sometime
they assume it's line buffered (e.g. __sfvwrite_r), trashing
application memory that's not really been allocated to them.
This patch solves the problem by clearing the unbuffered/line buffered
flag when setting the line buffered/unbuffered flag.
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Fixes Coverity CID 60046
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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- Remove charset parameter from low level __foo_wctomb/__foo_mbtowc calls.
- Instead, create array of function for ISO and Windows codepages to point
to function which does not require to evaluate the charset string on
each call. Create matching helper functions. I.e., __iso_wctomb,
__iso_mbtowc, __cp_wctomb and __cp_mbtowc are functions returning the
right function pointer now.
- Create __WCTOMB/__MBTOWC macros utilizing per-reent locale and replace
calls to __wctomb/__mbtowc with calls to __WCTOMB/__MBTOWC.
- Drop global __wctomb/__mbtowc vars.
- Utilize aforementioned changes in Cygwin to get rid of charset in other,
calling functions and simplify the code.
- In Cygwin restrict global cygheap locale info to the job performed
by internal_setlocale. Use UTF-8 instead of ASCII on the fly in
internal conversion functions.
- In Cygwin dll_entry, make sure to initialize a TLS area with a NULL
_REENT->_locale pointer. Add comment to explain why.
Signed-off by: Corinna Vinschen <corinna@vinschen.de>
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Move all locale category structure definitions into setlocale.h and remove
other headers in locale subdir. Create inline accessor functions for
current category struct pointers and use throughout. Use pointers to
"C" locale category structs by default in __global_locale.
Signed-off by: Corinna Vinschen <corinna@vinschen.de>
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Throughout, remove references to __STRICT_ANSI__ and use the proper
internal macros and versions for C99, POSIX, ATFILE for the various *at
functions, or LARGEFILE for fseeko and ftello.
[v]asprintf are GNU extensions, but the *iprintf, *iscanf, and
*asnprintf functions are unique to newlib.
getw and putw were removed from POSIX.1-2001. funopen is BSD, and
fopencookie is GNU.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
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The __sinit call added with 1eb6db6 already sets reent->__cleanup.
* libc/stdio/setvbuf.c (setvbuf): Drop setting reent->__cleanup.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Newlib's setvbuf function is very old and has two bugs:
- It sets the SRD/SWR flags incorrectly in case of files opened for
reading and writing.
See https://cygwin.com/ml/cygwin/2016-03/msg00180.html
for a desription of the effect.
- It always sets the buffer size to BUFSIZ if it's not provided by
the application, independent of the optimal blocksize for the
underlying IO device.
Update setvbuf to latest code from OpenBSD to fix both problems.
* libc/stdio/setvbuf.c (setvbuf): Import latest OpenBSD
implementation.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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To fix a long-standing setvbuf bug, import __swhatbuf function from
OpenBSD and only slightly rearrange for newlib.
* libc/stdio/local.h (__swhatbuf_r): Declare.
* libc/stdio/makebuf (__smakebuf_r): New function.
(__smakebuf_r): Drop file handling code and call __smakebuf_r.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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This patch fixes the problem reported in
https://cygwin.com/ml/cygwin/2016-02/msg00014.html
The 2009 changes to handle multibyte decimal point and thousands
separator missed to take the length of a multibyte decimal point into
account when computing the field size.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* libc/stdio/fclose.c (_fclose_r): Make _flockfile/_funlockfile calls
dependent on __SNLK flag.
* libc/stdio/findfp.c (__fp_lock): Ditto.
(__fp_unlock): Ditto.
* libc/stdio/freopen.c (_freopen_r): Ditto.
* libc/stdio64/freopen64.c (_freopen64_r): Ditto.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* 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>
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* libc/stdlib/Makefile.am (GENERAL_SOURCES): Add strtodg.c and
strtorx.c.
* libc/stdlib/Makefile.in: Regenerate.
* libc/stdlib/strtodg.c: New file implementing generic string to long
double conversion.
* libc/stdlib/strtorx.c: New file, implementing IEEE format string to
long double conversion.
* libc/stdlib/mprec.h (_strtodg_r): Declare.
(_strtorx_r): Declare.
* libc/stdlib/gdtoa.h (__UShort): Define.
* libc/stdlib/strtold.c (__flt_rounds): Define for i386 and x86_64
target.
(FLT_ROUNDS): Define, as 0 on platforms missing a __flt_rounds
function.
(_strtold_r): Converted from strtold. Call _strtorx_r on targets
supporting distinct long doubles.
(strtold): Just call _strtold_r.
* libc/include/stdlib.h (_strtold_r): Declare.
* libc/stdlib/ldtoa.c (_strtold): Comment out. Explain why.
* libc/stdio/vfscanf.c (__SVFSCANF_R): Call _strtold_r instead of
_strtold.
* libc/machine/powerpc/vfscanf.c (__svfscanf_r): Ditto.
* common.din (strtold): Drop redirection to _strtold.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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- 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>
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- 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>
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- Also, harmonize libm to use CHEWOUT_FILES like libc, rather than chobj.
Update documentation appropriately.
* HOWTO: Update.
* Makefile.shared: Move documentation rules to here...
* libc/argz/Makefile.am: ... from here ...
* libc/ctype/Makefile.am: ... and here.
* libc/errno/Makefile.am: Ditto.
* libc/iconv/Makefile.am: Ditto.
* libc/iconv/ccs/Makefile.am : Ditto.
* libc/iconv/ces/Makefile.am: Ditto.
* libc/iconv/lib/Makefile.am: Ditto.
* libc/locale/Makefile.am: Ditto.
* libc/misc/Makefile.am: Ditto.
* libc/posix/Makefile.am: Ditto.
* libc/reent/Makefile.am: Ditto.
* libc/search/Makefile.am: Ditto.
* libc/stdio/Makefile.am: Ditto.
* libc/stdio64/Makefile.am: Ditto.
* libc/stdlib/Makefile.am : Ditto.
* libc/string/Makefile.am: Ditto.
* libc/syscalls/Makefile.am: Ditto.
* libc/time/Makefile.am : Ditto.
* libc/unix/Makefile.am: Ditto.
* libc/xdr/Makefile.am: Ditto.
* libm/common/Makefile.am: Ditto.
* libm/complex/Makefile.am: Ditto.
* libm/math/Makefile.am: Ditto.
* libm/mathfp/Makefile.am: Ditto.
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* libc/stdio/fseek.c: Add missing semicolons to prototypes in
SYNOPSIS.
* libc/stdio/fwide.c: Ditto.
* libc/stdio64/fseeko64.c: Ditto.
* libc/string/strtok.c: Ditto.
* libc/string/wcstok.c: Ditto.
* libm/math/w_cosh.c: Ditto.
* libm/math/w_fmod.c: Ditto.
* libm/mathfp/s_cosh.c: Ditto.
* libm/mathfp/s_fmod.c: Ditto.
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* libc/stdio/vfwscanf.c (__SVFWSCANF_R): Convert wrong usage of va_arg
to GET_ARG in %lc, %ls nad %l[] cases. Fix unterminated string in %l[]
case.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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The CHECK_INIT() is necessary before the _newlib_flockfile_start() since
this would use otherwise acquire an uninitialized lock which gets
initialized after this leading to a corrupt release.
newlib/ChangeLog
2015-07-01 Sebastian Huber <sebastian.huber@embedded-brains.de>
libc/stdio/fputs.c (_puts_r): Add missing CHECK_INIT().
libc/stdio/gets.c (_gets_r): Add missing _REENT_SMALL_CHECK_INIT() and
CHECK_INIT(). Use _stdin_r() to get the file pointer instead of stdin.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Regenerate Makefile.in with changes in commits 153385d8 and 433aad91
2015-06-29 Jon Turney <jon.turney@dronecode.org.uk>
* libc/ctype/Makefile.in: Regenerate.
* libc/posix/Makefile.in: Ditto.
* libc/stdio/Makefile.in: Ditto.
* libc/stdio64/Makefile.in: Ditto.
* libc/stdlib/Makefile.in: Ditto.
* libc/string/Makefile.in: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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Don't chew files which contain no documentation markup.
Neither of the alternatives for MALLOCR (mallocr.c or nano-mallocr.c) contain
any documentation markup.
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdlib/Makefile.am (CHEWOUT_FILES): Remove $(MALLOCR).def.
* libc/stdio/Makefile.am (CHEWOUT_FILES): Remove getwc.def and
putwc.def.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/locale/locale.c: Fix mismatched parentheses in
documentation.
* libc/locale/locale.tex: Ditto.
* libc/stdio/fgetwc.c: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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Fix an inconsistent use of '.' to separate function names in FUNCTION. ',' is
used everywhere else.
2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdio/fread.c: Fix inconsistent use of '.' to separate
function names in FUNCTION mark up.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/stdio/getchar_u.c: Fix a non-ANSI prototype in SYNOPSIS.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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2015-06-23 Jon Turney <jon.turney@dronecode.org.uk>
* libc/signal/signal.tex: Use texinfo not makedoc markup.
* libc/stdio/stdio.tex: Ditto.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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* libc/include/stdio.h (clearerr_unlocked, feof_unlocked,
ferror_unlocked, fflush_unlocked, fgetc_unlocked, fgets_unlocked,
fileno_unlocked, fputc_unlocked, fputs_unlocked, fread_unlocked,
fwrite_unlocked): Declare.
* libc/include/wchar.h (fgetwc_unlocked, fgetws_unlocked,
fputwc_unlocked, fputws_unlocked, getwc_unlocked, getwchar_unlocked,
putwc_unlocked, putwchar_unlocked): Declare.
* libc/stdio/Makefile.am (ELIX_4_SOURCES): Add clearerr_u.c,
feof_u.c, ferror_u.c, fflush_u.c, fgetc_u.c, fgets_u.c, fgetwc_u.c,
fgetws_u.c, fileno_u.c, fputc_u.c, fputs_u.c, fputwc_u.c, fputws_u.c,
fread_u.c, fwrite_u.c, getwc_u.c, getwchar_u.c, putwc_u.c, putwchar_u.c.
Add necessary dependencies.
* libc/stdio/Makefile.in: Regenerate.
* libc/stdio/clearerr.c: Document unlocked variant.
* libc/stdio/clearerr_u.c: New file.
* libc/stdio/feof.c: Document unlocked variant.
* libc/stdio/feof_u.c: New file.
* libc/stdio/ferror.c: Document unlocked variant.
* libc/stdio/ferror_u.c: New file.
* libc/stdio/fflush.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fflush_u.c: New file.
* libc/stdio/fgetc.c: Document unlocked variants.
* libc/stdio/fgetc_u.c: New file.
* libc/stdio/fgets.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fgets_u.c: New file.
* libc/stdio/fgetwc.c: Document unlocked variants.
(__fgetwc): Make non-static.
* libc/stdio/fgetwc_u.c: New file.
* libc/stdio/fgetws.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fgetws_u.c: New file.
* libc/stdio/fileno.c: Document unlocked variant.
* libc/stdio/fileno_u.c: New file.
* libc/stdio/fputc.c: Document unlocked variants.
* libc/stdio/fputc_u.c: New file.
* libc/stdio/fputs.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fputs_u.c: New file.
* libc/stdio/fputwc.c: Document unlocked variants.
(__fputwc): Make non-static.
* libc/stdio/fputwc_u.c: New file.
* libc/stdio/fputws.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fputws_u.c: New file.
* libc/stdio/fread.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fread_u.c: New file.
* libc/stdio/fwrite.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fwrite_u.c: New file.
* libc/stdio/getwc_u.c: New file.
* libc/stdio/getwchar.c: Document unlocked variants.
* libc/stdio/getwchar_u.c: New file.
* libc/stdio/local.h: Define locking macros as empty ifdef
__IMPL_UNLOCKED__.
(__fgetwc, __fputwc): Declare.
* libc/stdio/putwc_u.c: New file.
* libc/stdio/putwchar.c: Document unlocked variants.
* libc/stdio/putwchar_u.c: New file.
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* stdio_ext.c: Add "stdio_ext" to synopsis.
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* libc/include/stdio_ext.h (FSETLOCKING_QUERY, FSETLOCKING_INTERNAL,
FSETLOCKING_BYCALLER): Define.
(__fsetlocking): Declare.
* libc/stdio/Makefile.am: Build fsetlocking.c.
* libc/stdio/Makefile.in: Regenerate.
* libc/stdio/fsetlocking.c: New file.
* libc/stdio/local.h (_newlib_flockfile_start): Make _flockfile
call dependent on __SNLK flag.
(_newlib_flockfile_exit, _newlib_flockfile_end): Ditto for
_funlockfile calls.
Define all locking macros as empty if __SINGLE_THREAD__.
* libc/stdio/stdio.tex: Include fsetlocking.def.
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[!__GNUC__]: Declare real functions for the macros, and make
the macros conditional on !__cplusplus.
* libc/stdio/Makefile.am (ELIX_4_SOURCES): Add stdio_ext.c.
(CHEWOUT_FILES): Add stdio_ext.def.
* libc/stdio/Makefile.in: Regenerate.
* libc/stdio/stdio.tex: Include stdio_ext.def.
* libc/stdio/stdio_ext.c: New file.
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larger than an int.
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handle string that might be not nul-terminated.
* testsuite/newlib.stdio/nulprintf.c: New test.
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option "--enable-lite-exit" is in effect. Refactor the code.
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