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Add file that I forgot to add in last commit. Move libc/stdlib/lib_imaxabs.c to inittypes/.

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Gregory Nutt 2017-02-16 14:54:35 -06:00
parent a49b349614
commit 4ed3ae19d7
6 changed files with 147 additions and 1 deletions
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1
libc/Makefile
View File

@ -67,6 +67,7 @@ include dirent/Make.defs
include dllfcn/Make.defs
include fixedmath/Make.defs
include hex2bin/Make.defs
include inttypes/Make.defs
include libgen/Make.defs
include locale/Make.defs
include machine/Make.defs

1
libc/README.txt
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@ -34,6 +34,7 @@ we have:
libgen - libgen.h
locale - locale.h
fixedmath - fixedmath.h
inttypes - inttypes.h
machine - Various architecture-specifica implementations.
math - math.h
modlib - Part of module and shared libary logic: nuttx/lib/modlib.h

43
libc/inttypes/Make.defs Normal file
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@ -0,0 +1,43 @@
############################################################################
# libc/inttypes/Make.defs
#
# Copyright (C) 2017 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name NuttX nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
# Add the inttypes C files to the build
CSRCS += lib_imaxabs.c
# Add the inttypes directory to the build
DEPPATH += --dep-path inttypes
VPATH += :inttypes

3
libc/stdlib/lib_imaxabs.c → libc/inttypes/lib_imaxabs.c
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@ -1,5 +1,5 @@
/****************************************************************************
* libc/stdlib//lib_abs.c
* libc/inttypes/lib_imaxabs.c
*
* Copyright (C) 2010-2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
@ -50,5 +50,6 @@ intmax_t imaxabs(intmax_t j)
{
j = -j;
}
return j;
}

1
libc/libc.csv
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@ -173,6 +173,7 @@
"strtoul","stdlib.h","","unsigned long","FAR const char *","FAR char **","int"
"strtoull","stdlib.h","defined(CONFIG_HAVE_LONG_LONG)","unsigned long long","FAR const char *","FAR char **","int"
"strxfrm","string.h","defined(CONFIG_LIBC_LOCALE)","size_t","FAR char *","FAR const char *","size_t"
"swab","unistd.h","","void","int","FAR const void *","FAR void *","ssize_t"
"syslog","syslog.h","","int","int","FAR const char *","..."
"tcflush","termios.h","CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_SERIAL_TERMIOS)","int","int","int"
"tcgetattr","termios.h","CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_SERIAL_TERMIOS)","int","int","FAR struct termios *"

Can't render this file because it has a wrong number of fields in line 2.

99
libc/unistd/lib_swab.c Normal file
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@ -0,0 +1,99 @@
/****************************************************************************
* libc/unistd/lib_swab.c
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <unistd.h>
#include <assert.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: strncpy
*
* Description:
* The swab() function will copy nbytes bytes, which are pointed to by
* 'src', to the object pointed to by 'dest', exchanging adjacent bytes.
* The 'nbytes' argument should be even. If 'nbytes' is odd, swab() copies
* and exchanges 'nbytes'-1 bytes and the disposition of the last byte is
* unspecified. If copying takes place between objects that overlap, the
* behavior is undefined. If nbytes is negative, swab() does nothing.
*
* Returned Value:
* None
*
****************************************************************************/
void swab(FAR const void *src, FAR void *dest, ssize_t nbytes)
{
FAR const uint8_t *src8 = (FAR const uint8_t *)src;
FAR uint8_t *dest8 = (FAR uint8_t *)dest;
FAR uint8_t *end8;
DEBUGASSERT(src != NULL && dest != NULL);
/* Do nother if nbytes is negative or it there are few then 2 bytes to be
* transferred.
*/
if (nbytes > 1)
{
/* The end of dest buffer + 1 byte (skipping any odd numbered byte at
* the end of the buffer.
*/
end8 = dest8 + (nbytes & ~1);
/* Loop until the destination is equal to the end + 1 address */
while (dest8 != end8)
{
register uint8_t tmp;
/* Transfer the bytes, swapping the order */
tmp = *src8++;
*dest8++ = *src8++;
*dest8++ = tmp;
}
}
}