Commit Graph

2222 Commits

Author SHA1 Message Date
Corinna Vinschen 666a3482a5 Handle multibyte decimapl point in strtold.
* libc/stdlib/strtodg.c: Define USE_LOCALE.
	(_strtodg_r): Handle multibyte decimal point.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-11-21 16:40:21 +01:00
Corinna Vinschen fbace81684 Import correctly working strtold from David M. Gay.
* 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>
2015-11-20 18:14:58 +01:00
Corinna Vinschen 51bf1b81f3 Make match function globally available to stdlib functions.
* libc/stdlib/strtod.c (match): Move from here...
	* libc/stdlib/gdtoa-hexnan.c (match): ...to here.
	* libc/stdlib/mprec.h (match): Declare and add __match define.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-11-20 18:03:05 +01:00
Corinna Vinschen b5d8a403ec Drop unused declaration from wcstold.c
* libc/stdlib/wcstold.c (_strtold): Drop unused declaration.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-11-20 17:57:20 +01:00
Yaakov Selkowitz 1c1a925fc4 Fix typo in rpmatch doc reference
* libc/stdlib/stdlib.tex: Fix typo in rpmatch reference.

Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2015-11-19 15:28:06 -06:00
Corinna Vinschen fcc2dcbb21 ldtoa.c: Reindent to GNU style
* libc/stdlib/ldtoa.c: Convert to GNU style so as not to get crazy
	reading the code.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-11-19 17:09:58 +01:00
Corinna Vinschen e2802064b2 Fix rpmatch build problem
* libc/stdlib/rpmatch.c: Include sys/types.h to make GCC happy.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-11-19 16:31:08 +01:00
Jon Turney bdc6169381 Simplify the markup for sprintf and swprintf documentation
- 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>
2015-11-19 11:39:52 +00:00
Jon Turney 21e6ba20ae Improve markup of sscanf and swscanf documentation
- 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>
2015-11-19 11:39:49 +00:00
Yaakov Selkowitz 9a6acafd04 Add rpmatch(3)
2015-11-17  Yaakov Selkowitz  <yselkowi@redhat.com>

* libc/include/stdlib.h (rpmatch): Declare.
* libc/stdlib/Makefile.am (ELIX_4_SOURCES): Add rpmatch.c.
(CHEWOUT_FILES): Add rpmatch.def.
* libc/stdlib/Makefile.in: Regenerate.
* libc/stdlib/rpmatch.c: New file.
* libc/stdlib/stdlib.tex: Add references to rpmatch.
2015-11-17 12:00:20 -06:00
Marcus Shawcroft 9959058932 [ARM] Factor out the thumb1 -Os implementation.
The patch moves the inline ASM thumb1 -O2 implementation out into its
own .S file.

Tested by building newlib and comparing libc.a binaries before and
after for all permutations of:

      Architectures:
        armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k
        armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a
        armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2

      ISAs:
        thumb arm

      Optimization Levels:
        Os O2

      Excluding:
        armv6s-m -mthumb
        armv6-m -mthumb

        armv6zk -mthumb
        armv6z -mthumb
        armv6k -mthumb
        armv6j -mthumb
2015-11-13 11:54:28 +00:00
Marcus Shawcroft bcd5e8e3f9 [ARM] Adding strlen.S
The patch adds strlen.S to contain the complementary preprocessor
logic to strlen-stub.c intended to provide #inclusion of alternative
.S implementations.

Initially we just include the existing strlen-armv7.S implementation.

We rewrite _ISA_ARMV7 in both strlen.S and strlen-stub.c to use the
underlying existing underlying defintion from arm_asm.h in order to
avoide including that file, this is in effect the first step towards a
move to ACLE predefines only.

Tested by building newlib and comparing libc.a binaries before and
after for all permutations of:

      Architectures:
        armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k
        armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a
        armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2

      ISAs:
        thumb arm

      Optimization Levels:
        Os O2

      Excluding:
        armv6s-m -mthumb
        armv6-m -mthumb

        armv6zk -mthumb
        armv6z -mthumb
        armv6k -mthumb
        armv6j -mthumb
2015-11-13 11:54:28 +00:00
Marcus Shawcroft 42de6f5085 [ARM] Rename strlen to strlen-stub.c
In order to maintain consistency both within machine/arm and between
machine/arm and machine/aarch64, rename the 'c' stub to -stub.c.

Tested by building newlib and comparing libc.a binaries before and
after for all permutations of:

      Architectures:
        armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k
        armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a
        armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2

      ISAs:
        thumb arm

      Optimization Levels:
       Os O2

      Excluding:
        armv6s-m -mthumb
        armv6-m -mthumb

        armv6zk -mthumb
        armv6z -mthumb
        armv6k -mthumb
        armv6j -mthumb
2015-11-13 11:54:23 +00:00
Marcus Shawcroft 2c8e31d654 [ARM] Reorganize strlen selection.
Remove automake and autoconf selection of strchr implementation in
favour of conditional compilation in strlen.c.
2015-11-13 11:52:01 +00:00
Marcus Shawcroft 52f5864096 [ARM] Refactor strlen.c #if nesting.
This patch flattens the condition code selection used in strlen in an
attempt to make the guarding condition for each alternative
implementation clearer and to structure the logic in a manner that
makes it easier to maintain complementary logic between the
alternative 'C' and assembler implementations.

Tested by building newlib and comparing libc.a binaries before and
after for all permutations of:

  Architectures:
    armv4 armv4t armv5 armv5t armv5te armv6 armv6j armv6k
    armv6z armv6kz armv6t2 armv6-m armv6s-m armv7 armv7-a
    armv7ve armv7-r armv7-m armv7e-m armv8-a iwmmxt iwmmxt2

  ISAs:
    thumb arm

  Optimization Levels:
    Os O2

  Excluding:
    armv6s-m -mthumb
    armv6-m -mthumb

    armv6zk -mthumb
    armv6z -mthumb
    armv6k -mthumb
    armv6j -mthumb
2015-11-13 11:51:31 +00:00
Anton Kolesov c0a99f0293 Add support for ARC to newlib
newlib/ChangeLog:
2015-11-12  Anton Kolesov  <Anton.Kolesov@synopsys.com>

	* configure.host: Add ARC support.
	* libc/include/machine/setjmp.h: Likewise.
	* libc/machine/configure: Likewise.
	* libc/machine/configure.in: Likewise.
	* libc/machine/arc/Makefile.am: Likewise.
	* libc/machine/arc/Makefile.in: Likewise.
	* libc/machine/arc/aclocal.m4: Likewise.
	* libc/machine/arc/asm.h: Likewise.
	* libc/machine/arc/configure: Likewise.
	* libc/machine/arc/configure.in: Likewise.
	* libc/machine/arc/memcmp-bs-norm.S: Likewise.
	* libc/machine/arc/memcmp-stub.c: Likewise.
	* libc/machine/arc/memcmp.S: Likewise.
	* libc/machine/arc/memcpy-archs.S: Likewise.
	* libc/machine/arc/memcpy-bs.S: Likewise.
	* libc/machine/arc/memcpy-stub.c: Likewise.
	* libc/machine/arc/memcpy.S: Likewise.
	* libc/machine/arc/memset-archs.S: Likewise.
	* libc/machine/arc/memset-bs.S: Likewise.
	* libc/machine/arc/memset-stub.c: Likewise.
	* libc/machine/arc/memset.S: Likewise.
	* libc/machine/arc/setjmp.S: Likewise.
	* libc/machine/arc/strchr-bs-norm.S: Likewise.
	* libc/machine/arc/strchr-bs.S: Likewise.
	* libc/machine/arc/strchr-stub.c: Likewise.
	* libc/machine/arc/strchr.S: Likewise.
	* libc/machine/arc/strcmp-archs.S: Likewise.
	* libc/machine/arc/strcmp-stub.c: Likewise.
	* libc/machine/arc/strcmp.S: Likewise.
	* libc/machine/arc/strcpy-bs-arc600.S: Likewise.
	* libc/machine/arc/strcpy-bs.S: Likewise.
	* libc/machine/arc/strcpy-stub.c: Likewise.
	* libc/machine/arc/strcpy.S: Likewise.
	* libc/machine/arc/strlen-bs-norm.S: Likewise.
	* libc/machine/arc/strlen-bs.S: Likewise.
	* libc/machine/arc/strlen-stub.c: Likewise.
	* libc/machine/arc/strlen.S: Likewise.
	* libc/machine/arc/strncpy-bs.S: Likewise.
	* libc/machine/arc/strncpy-stub.c: Likewise.
	* libc/machine/arc/strncpy.S: Likewise.
2015-11-12 14:14:17 +01:00
Anton Kolesov e945a19cb2 Remove obsolete ARC system
ARC architecture specific files has been added ages ago in newlib/libc/sys,
but with invention of libgloss those files should be moved from newlib to
libgloss.

newlib/ChangeLog:
2015-11-12  Anton Kolesov  <Anton.Kolesov@synopsys.com>

	* configure.host: Remove ARC system.
	* libc/sys/configure: Likewise.
	* libc/sys/configure.in: Likewise.
	* libc/sys/arc/Makefile.am: Likewise.
	* libc/sys/arc/Makefile.in: Likewise.
	* libc/sys/arc/aclocal.m4: Likewise.
	* libc/sys/arc/configure: Likewise.
	* libc/sys/arc/configure.in: Likewise.
	* libc/sys/arc/crt0.S: Likewise.
	* libc/sys/arc/dummy.S: Likewise.
	* libc/sys/arc/isatty.c: Likewise.
	* libc/sys/arc/mem-layout.c: Likewise.
	* libc/sys/arc/sbrk.c: Likewise.
	* libc/sys/arc/sys/syscall.h: Likewise.
	* libc/sys/arc/syscalls.c: Likewise.
2015-11-12 14:03:05 +01:00
Marcus Shawcroft 332a6236a2 Fix multilib libgloss selection.
Regression testing newlib in conjunction with libgloss and
--enable-multilib can result in incompatible multilib versions of
newlib and libgloss being used during link.

This manifests on ARM target when newlib regression is run using a
GCC configured using --with-multilib-list=aprofile

With this configuration many of the multilib variants built are
mutually incompatible.

The issue is that the newlib dejagnu foo iterates each multilib
variant and correctly chooses the appropriate newlib variant but
always chooses the root/base libgloss variant.

The implementation of newlib/testsuite/lib/flags.exp contains the
following fragment:

set target_build_path "$objdir/$multibuildtop.."

The effect of this fragment is to explicitly select the root version
of libgloss, irrespective of the current multilib.

Digging around in VC it appears that the original implementation of
multlib magic came into the tree back in 2002 with:

6e9d950a (Thomas Fitzsimmons 2002-05-01 17:06:25 +0000 39)

In this initial version of multilib support, newlib was multilib
capable, but libgloss was not multilib capable, hence the necessity to
explicitly select the root libgloss version.

Subsequently flags.exp was modified to support out of tree testing:

cec1d3b4 (Jeff Johnston      2005-07-05 00:11:50 +0000 25)

This change is orthogonal to this issue, its effect is to exit early
in none multilib configurations.

Subsequently libgloss gained --enable-multilib support, the relevant
change is:

https://sourceware.org/ml/newlib/2006/msg00440.html
commit 00a4b31ad0
Author: Jeff Johnston <jjohnstn@redhat.com>
Date: Wed May 10 20:51:41 2006 +0000

This change enabled multilib support throughout libgloss, but ommitted
to adjust the flag.exp behaviour which anchors the libgloss multilib
selection to the base version.

The attached patch adjusts flags.exp to select the current multilib
variant of libgloss.

2015-11-06  Marcus Shawcroft  <marcus.shawcroft@arm.com>

        * testsuite/lib/flags.exp (libgloss_link_flags): Drop multilibtop
        from target_build_path.
2015-11-12 13:48:06 +01:00
Jon Turney 1129ef019f makedoc: Don't interpret license text as a command
Align makedoc's iscommand() with it's documentation, and don't allow commands to
contain a space.  A command is a line containing only a sequence of capital
letters or '_', followed by optional spaces.

This prevents "IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE" (the only line in the license text which consists of only
capitals and spaces, without any punctuation) from being interepreted as a
makedoc command, leading to:

"Can't find IMPLIED"
"warning, IMPLIED is not recognised"

being emitted by makedoc, (which is normally un-noticed because makedoc's stderr
is redirected to a .ref file)

2015-11-06  Jon Turney  <jon.turney@dronecode.org.uk>

	* doc/makedoc.c (iscommand): Only allow commands to have trailing
	spaces, not space separated words.

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2015-11-12 12:42:19 +00:00
Jon Turney 81a7c8c37f doc: Fix some inconsistent QUICKREF lines
makedoc defines a command as 'all upper case, and alone on a line'.

A few QUICKREF lines currently violate this by having some additional text after
the QUICKREF.

So, currently, these lines are treated as an unknown command.

This is benign as QUICKREF currently does nothing but produce some ignored
output on stderr.  I'm not sure what the intent of QUICKREF is.

2015-11-06  Jon Turney  <jon.turney@dronecode.org.uk>

	* libm/mathfp/s_acos.c: Fix QUICKREF.
	* libm/mathfp/e_acosh.c: Ditto.
	* libm/math/w_asin.c: Ditto.
	* libm/mathfp/e_acosh.c: Ditto.
	* libm/mathfp/s_acos.c: Ditto.

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2015-11-12 12:42:17 +00:00
Jon Turney 0c02db4d28 makedoc: Fix INTERNAL(|DEFINITION|FUNCTION) command definitions
The unused INTERNAL_DEFINITION, INTERNAL_FUNCTION and INTERNAL commands are
defined in terms of the non-existent built-in 'func'

This causes every single invocation of makedoc to output "Can't find func" three
times, as it parses doc.str.

This is normally un-noticed because makedoc's stderr is redirected to a .ref
file.

Fix these unused command definitions to something with equivalent lack of
effect, but without generating an error.

2015-11-06  Jon Turney  <jon.turney@dronecode.org.uk>

	* doc/doc.str: Fix INTERNAL_DEFINITION, INTERNAL_FUNCTION and
	INTERNAL.

Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
2015-11-12 12:42:15 +00:00
Wilco Dijkstra 3c8636acf6 AArch64: Tune memcpy
* newlib/libc/machine/aarch64/memcpy.S (memcpy):
 	Further tuning for performance.
2015-11-12 13:38:39 +01:00
Joseph Myers e6459123e4 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.

	* libc/machine/arm/strcmp-arm-tiny.S: Use .cfi_sections
	.debug_frame.
	* libc/machine/arm/strcmp-armv4.S: Likewise.
	* libc/machine/arm/strcmp-armv4t.S: Likewise.
	* libc/machine/arm/strcmp-armv6.S: Likewise.
	* libc/machine/arm/strcmp-armv6m.S: Likewise.
	* libc/machine/arm/strcmp-armv7.S: Likewise.
	* libc/machine/arm/strcmp-armv7m.S: Likewise.
2015-11-12 12:09:24 +00:00
Marcus Shawcroft d18f1fc8a3 Reorganize memchr selection.
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:

https://sourceware.org/ml/newlib/2015/msg00752.html

but using the ACLE predefines.

Regressed for armv7-a armv5 armv8-a, correct selection of memcpy
implementation by manual inspection of a test program built for these
three architectures.
2015-11-06 16:11:32 +00:00
Marcus Shawcroft 72be1dead4 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.
2015-11-06 15:40:31 +00:00
Olivier Martin cdb1ebe107 Replace __attribute((__warning__())) by __attribute__((deprecated()))
Clang raises the warning message:
warning: unknown attribute '__warning__' ignored [-Wunknown-attributes]

	* libc/include/stdlib.h (mktemp): Change attribute to deprecated.
	(_mktemp_r): Ditto.

Signed-off-by: Olivier Martin <olivier@labapart.com>
2015-11-06 11:29:58 +01:00
Marcus Shawcroft 0a4019eed2 [ARM] Select appropriate memcpy implementation for ARMv8-a.
The newlib configury logic that detects architecture version and
chooses an appropriate memcpy implementation does not consider
ARMv8-a.

This patch adds configury logic to detect ARMv8-a along with the
associated changes in Makefile.am and memcpy.
2015-11-03 11:04:55 +00:00
Jeff Johnston 0631279394 Move duplicated documentation rules to Makefile.shared
- 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.
2015-11-02 18:02:39 -05:00
Jeff Johnston 53617ce4e6 Consistently use an em-dash in math functions.
- also move previous ChangeLog entry to newlib instead of top-level

        * libc/time/wcsftime.c: Consistently use an em-dash in FUNCTION
summary.
        * libm/common/isgreater.c: Ditto.
        * libm/common/s_fdim.c: Ditto.
        * libm/common/s_fma.c: Ditto.
        * libm/common/s_fmax.c: Ditto.
        * libm/common/s_fmin.c: Ditto.
        * libm/common/s_infinity.c: Ditto.
        * libm/common/s_isnan.c: Ditto.
        * libm/common/s_log2.c: Ditto.
        * libm/common/s_logb.c: Ditto.
        * libm/common/s_lrint.c: Ditto.
        * libm/common/s_lround.c: Ditto.
        * libm/common/s_nearbyint.c: Ditto.
        * libm/common/s_remquo.c: Ditto.
        * libm/common/s_rint.c: Ditto.
        * libm/common/s_round.c: Ditto.
        * libm/common/s_scalbn.c: Ditto.
        * libm/common/s_signbit.c: Ditto.
        * libm/common/s_trunc.c: Ditto.
        * libm/math/w_exp2.c: Ditto.
        * libm/math/w_gamma.c: Ditto.
2015-11-02 16:43:22 -05:00
Jeff Johnston 72e18faf62 Add missing semicolons to prototypes.
* 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.
2015-11-02 16:34:49 -05:00
Steve Ellcey 5045532322 Improve performance of MIPS memcpy.
* libc/machine/mips/memcpy.S (memcpy): Add word copies for small
	aligned data.
2015-11-02 13:30:19 -08:00
Corinna Vinschen 7ac60f6ceb Add missing ChangeLog entry for ce8159d5 2015-11-02 10:24:14 +01:00
Sebastian Huber ce8159d5ce Include <sched.h> in <pthread.h>
This is mandated by POSIX.

2015-10-30  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	libc/include/pthread.h: Include <sched.h> instead of
	<sys/sched.h>.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-10-30 20:28:00 +01:00
Brian Inglis 6090952296 strftime: Add support for %s (seconds since epoch)
* libc/time/strftime.c (__strftime): add support for %s (seconds from
	Unix epoch).  Fix whitespaces.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-10-27 09:41:40 +01:00
Nick Clifton c3b6da1781 Extend _intsup.h to support 16-bit and 20-bit pointers.
* libc/include/sys/_intsup.h: Add support for 16-bit and 20-bit
	pointers.
2015-10-19 14:48:30 +01:00
Sebastian Huber f86afe5a3a 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>

	* libc/stdlib/Makefile.am (GENERAL_SOURCES): Add
	alloc_aligned.c.c.
	* libc/stdlib/Makefile.in: Regenerate.
	* libc/stdlib/aligned_alloc.c: New.
2015-10-19 14:10:33 +02:00
Sebastian Huber da60762bfe C11 aligned_alloc() support for <stdlib.h>
newlib/ChangeLog
2015-10-14  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* libc/include/stdlib.h (alloc_aligned): Declare.
2015-10-19 14:10:09 +02:00
Sebastian Huber d67f71ab85 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>

	* libc/include/stdlib.h (at_quick_exit): Declare.
	(quick_exit): Likewise.
	* libc/stdlib/Makefile.am (GENERAL_SOURCES): Add
	quick_exit.c.
	* libc/stdlib/Makefile.in: Regenerate.
	* libc/stdlib/quick_exit.c: New.
2015-10-19 14:09:17 +02:00
Jeff Johnston c98d01ee0c Import <threads.h> from latest FreeBSD.
- Move types and defines to
  <machine/_threads.h> so that it can be customized per target.

	* libc/include/threads.h: New.
	* libc/sys/rtems/include/machine/_threads.h: Likewise.
2015-10-13 17:52:34 -04:00
Jeff Johnston ecee0b0607 Synchronize with FreeBSD.
* libc/include/sys/cdefs.h: Synchronize with latest FreeBSD
        version.
2015-10-13 17:50:30 -04:00
Jeff Johnston 443467d752 Add FreeBSD style changes to sys/cdefs.h
* libc/include/sys/cdefs.h: Add style changes of latest FreeBSD
        version.
2015-10-13 17:46:47 -04:00
Nick Clifton e6430c9e8c Define setjmp buffer length for IA64. 2015-10-08 15:46:34 +01:00
Jeff Johnston f296bb3569 Minimize newlib code size for ft32
* configure.host (ft32): minimise newlib code size
2015-09-22 18:12:23 -04:00
Jeff Johnston 948b5f0043 Add support for ft32 to newlib. 2015-09-04 14:37:37 -04:00
Hans-Peter Nilsson 82d7069a5e libc/machine/cris/sys/signal.h (kill): Declare. 2015-09-03 01:59:43 +02:00
Corinna Vinschen 38fd7ddb79 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.

        * new-features.xml (ov-new2.3): Document sysconf cache addition.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-29 09:16:47 +02:00
Corinna Vinschen e6d9af11f1 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

#if !(defined(_ISA_ARM_7) || defined(__ARM_ARCH_6T2__))
/*...*/
#endif

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

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2015-08-27 12:55:22 +02:00
Andre Simoes Dias Vieira 892cfcb7c2 Fix for pri and scn formats 2015-08-27 12:50:25 +02:00
James Greenhalgh 4eca8ea0cf 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?

Thanks,
James
2015-08-25 16:17:14 +02:00
Jon TURNEY a669484b81 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.

[1] https://sourceware.org/ml/newlib/2013/msg00057.html

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>
2015-08-20 10:53:55 +02:00