nuttx/arch/arm64/include/stdarg.h
qinwei1 e77b06721b arch: arm64: ARMv8-A support for NuttX
N/A

Summary:

Arm64 support for NuttX, Features supported:

1. Cortex-a53 single core and SMP support: it's can run into nsh shell at
   qemu virt machine.

2. qemu-a53 board configuration support: it's only for evaluate propose

3. FPU support for armv8-a: FPU context switching at NEON/floating-point
  TRAP is supported.

4. psci interface, armv8 cache operation(data cache) and smccc support.

5. fix mass code style issue, thank for @xiaoxiang781216, @hartmannathan @pkarashchenko

Please refer to boards/arm64/qemu/qemu-a53/README.txt for detail

Note:
1. GCC MACOS issue
The GCC 11.2 toolchain for MACOS may get crash while compiling
float operation function, the following link describe the issue
and give analyse at the issue:

https://bugs.linaro.org/show_bug.cgi?id=5825

it's seem GCC give a wrong instruction at certain machine which
without architecture features

the new toolchain is not available still, so just disable the MACOS
cibuild check at present

Signed-off-by: qinwei1 <qinwei1@xiaomi.com>
2022-07-14 09:35:49 -04:00

46 lines
1.9 KiB
C

/****************************************************************************
* arch/arm64/include/stdarg.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_ARM64_INCLUDE_STDARG_H
#define __ARCH_ARM64_INCLUDE_STDARG_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Pre-processor Prototypes
****************************************************************************/
/* 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_ARM64_INCLUDE_STDARG_H */