mirror of
https://github.com/apache/nuttx.git
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Source code under `newlib/newlib/newlib/libm/machine/$(ARCH)/*.c`
should be added before common source code from `../../common/*.c`.
Take `newlib/newlib/newlib/libm/machine/riscv/s_fma.c` as an
example:
```
double
fma (double x, double y, double z)
{
double result;
asm ("fmadd.d %0, %1, %2, %3" : "=f" (result) : "f" (x), "f" (y), "f" (z));
return result;
}
```
Note that the common `s_fma.c` will be included by the source file
directly. The order of adding the files to CSRCS matters here.
Although the CMake-based build system does not have the same build
problem of including the a source-file with the same in the wrong
order, this commit also changes the order of inclusion for CMake
too to keep it consistent.
151 lines
5.2 KiB
CMake
151 lines
5.2 KiB
CMake
# ##############################################################################
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# libs/libm/newlib/CMakeLists.txt
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. The ASF licenses this
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# file to you under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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#
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# ##############################################################################
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if(CONFIG_LIBM_NEWLIB)
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# ############################################################################
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# Config and Fetch newlib
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# ############################################################################
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set(NEWLIB_VERSION 4.3.0.20230120)
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# ftp://sourceware.org/pub/newlib,newlib-4.3.0.20230120.tar.gz
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set(NEWLIB_URL
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ftp://sourceware.org/pub/newlib/newlib-${NEWLIB_VERSION}.tar.gz)
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set(NEWLIB_DIR ${CMAKE_CURRENT_LIST_DIR}/newlib)
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if(NOT EXISTS ${CMAKE_CURRENT_LIST_DIR}/newlib)
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FetchContent_Declare(
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newlib_fetch
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URL ${NEWLIB_URL} SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/newlib BINARY_DIR
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${CMAKE_BINARY_DIR}/libs/libm/newlib/newlib
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PATCH_COMMAND
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patch -p1 -d ${CMAKE_CURRENT_LIST_DIR} <
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${CMAKE_CURRENT_LIST_DIR}/0001-newlib-libm-fix-__RCSID-build-error.patch
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&& patch -p1 -d ${CMAKE_CURRENT_LIST_DIR} <
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${CMAKE_CURRENT_LIST_DIR}/0002-newlib-libm-remove-include-reent.h.patch
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&& patch -p1 -d ${CMAKE_CURRENT_LIST_DIR} <
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${CMAKE_CURRENT_LIST_DIR}/0003-newlib-fix-compilation-for-x86.patch &&
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patch -p1 -d ${CMAKE_CURRENT_LIST_DIR} <
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${CMAKE_CURRENT_LIST_DIR}/0004-newlib-disable-optmisation-for-sincos.patch
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)
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FetchContent_GetProperties(newlib_fetch)
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if(NOT newlib_fetch_POPULATED)
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FetchContent_Populate(newlib_fetch)
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endif()
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set(NEWLIB_DIR ${newlib_fetch_SOURCE_DIR})
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endif()
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# ############################################################################
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# Flags
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# ############################################################################
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set(CFLAGS -Wno-undef -Wno-unused-but-set-variable -D__int32_t=int32_t
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-D__uint32_t=uint32_t -D_REENT=0 -D_REENT_THREAD_LOCAL=1)
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# ############################################################################
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# Sources
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# ############################################################################
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if(CONFIG_ARCH_ARM)
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set(ARCH_DIR arm)
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elseif(CONFIG_ARCH_ARM64)
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set(ARCH_DIR aarch64)
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elseif(CONFIG_ARCH_RISCV)
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set(ARCH_DIR riscv)
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elseif(CONFIG_ARCH_X86)
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set(ARCH_DIR i386)
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elseif(CONFIG_ARCH_X86_64)
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set(ARCH_DIR x86_64)
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elseif(CONFIG_ARCH_SPARC)
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set(ARCH_DIR sparc)
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elseif(CONFIG_ARCH_MIPS)
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set(ARCH_DIR mips)
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else()
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set(ARCH_DIR ${CONFIG_ARCH})
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endif()
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file(GLOB_RECURSE ARCH_CSRCS
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${NEWLIB_DIR}/newlib/libm/machine/${ARCH_DIR}/*.c)
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file(GLOB_RECURSE COMMON_CSRCS ${NEWLIB_DIR}/newlib/libm/common/*.c)
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file(GLOB_RECURSE COMPLEX_CSRCS ${NEWLIB_DIR}/newlib/libm/complex/*.c)
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if(CONFIG_ARCH_X86_64)
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file(GLOB_RECURSE ARCH_CSRCS ${NEWLIB_DIR}/newlib/libm/fenv/*.c)
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endif()
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set(CSRCS ${COMMON_CSRCS} ${COMPLEX_CSRCS} ${ARCH_CSRCS})
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# aggresive optimisation can replace occurrences of sinl() and cosl() with
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# sincosl(), but sincosl() is missing in newlib which causes error. So let's
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# use custom implementation here.
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list(APPEND CSRCS ${CMAKE_CURRENT_LIST_DIR}/sincosl.c)
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if(CONFIG_LIBM_NEWLIB_HW_FP)
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file(GLOB_RECURSE MATHFP_CSRCS ${NEWLIB_DIR}/newlib/libm/mathfp/*.c)
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list(APPEND CSRCS ${MATHFP_CSRCS})
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list(
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APPEND
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CFLAGS
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-Wno-dangling-else
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-Wno-endif-labels
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-Wno-implicit-function-declaration
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-Wno-missing-braces
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-Wno-shadow
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-Wno-strict-prototypes
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-Wno-unused-const-variable)
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else()
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file(GLOB_RECURSE MATH_CSRCS ${NEWLIB_DIR}/newlib/libm/math/*.c)
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list(APPEND CSRCS ${MATH_CSRCS})
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endif()
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# ############################################################################
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# Include Directory
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# ############################################################################
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set(INCDIR ${CMAKE_CURRENT_LIST_DIR}/include ${NEWLIB_DIR}/newlib/libm/common)
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if(CONFIG_ARCH_X86_64)
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list(APPEND INCDIR ${NEWLIB_DIR}/newlib/libc/machine/shared_x86/sys)
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endif()
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# ############################################################################
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# Library Configuration
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# ############################################################################
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nuttx_add_kernel_library(m)
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target_sources(m PRIVATE ${CSRCS})
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target_include_directories(m PRIVATE ${INCDIR})
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target_compile_options(m PRIVATE ${CFLAGS})
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set_property(
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TARGET nuttx
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APPEND
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PROPERTY NUTTX_INCLUDE_DIRECTORIES ${CMAKE_CURRENT_LIST_DIR}/include)
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endif()
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