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author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-07-08 14:50:43 +0000 |
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committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-07-08 14:50:43 +0000 |
commit | 266f29b3a16b6ade481c24811c51b14496badd45 (patch) | |
tree | accd637b0551acab73839ead97a8282e415aac1f /nuttx/arch | |
parent | 02b7f86536c75e36a7a6380abacc583cee3d56e4 (diff) | |
download | px4-firmware-266f29b3a16b6ade481c24811c51b14496badd45.tar.gz px4-firmware-266f29b3a16b6ade481c24811c51b14496badd45.tar.bz2 px4-firmware-266f29b3a16b6ade481c24811c51b14496badd45.zip |
Add a generic GCC stdarg.h header file
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4919 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/arch')
-rw-r--r-- | nuttx/arch/arm/include/stdarg.h | 59 | ||||
-rw-r--r-- | nuttx/arch/arm/src/lpc43xx/lpc43_serial.c | 3 |
2 files changed, 62 insertions, 0 deletions
diff --git a/nuttx/arch/arm/include/stdarg.h b/nuttx/arch/arm/include/stdarg.h new file mode 100644 index 000000000..653d34a6f --- /dev/null +++ b/nuttx/arch/arm/include/stdarg.h @@ -0,0 +1,59 @@ +/**************************************************************************** + * arch/arm/include/stdarg.h + * + * Copyright (C) 2012 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. + * + ****************************************************************************/ + +#ifndef __ARCH_ARM_INCLUDE_STDARG_H +#define __ARCH_ARM_INCLUDE_STDARG_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ +/* This should work with any modern gcc (newer than 3.4 or so) */ + +#define va_start(v,l) __builtin_va_start(v,l) +#define va_end(v) __builtin_va_end(v) +#define va_arg(v,l) __builtin_va_arg(v,l) +#define va_copy(d,s) __builtin_va_copy(d,s) + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +typedef __builtin_va_list va_list; + +#endif /* __ARCH_ARM_INCLUDE_STDARG_H */ diff --git a/nuttx/arch/arm/src/lpc43xx/lpc43_serial.c b/nuttx/arch/arm/src/lpc43xx/lpc43_serial.c index d3f718d0a..2d4ea9aac 100644 --- a/nuttx/arch/arm/src/lpc43xx/lpc43_serial.c +++ b/nuttx/arch/arm/src/lpc43xx/lpc43_serial.c @@ -552,6 +552,9 @@ static inline void up_enablebreaks(struct up_dev_s *priv, bool enable) * Configure the U[S]ART divisors to accomplish the desired BAUD given the * U[S]ART base frequency. * + * This computationally intensive algorithm is based on the same logic + * used in the NXP sample code. + * ****************************************************************************/ void up_setbaud(struct up_dev_s *priv) |