nuttx/cmake/nuttx_add_symtab.cmake
chao an 6ee9ec7656 build: add initial cmake build system
1. Update all CMakeLists.txt to adapt to new layout
2. Fix cmake build break
3. Update all new file license
4. Fully compatible with current compilation environment(use configure.sh or cmake as you choose)

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How to test

From within nuttx/. Configure:

cmake -B build -DBOARD_CONFIG=sim/nsh -GNinja
cmake -B build -DBOARD_CONFIG=sim:nsh -GNinja
cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja
cmake -B build -DBOARD_CONFIG=lm3s6965-ek/qemu-flat -GNinja

(or full path in custom board) :
cmake -B build -DBOARD_CONFIG=$PWD/boards/sim/sim/sim/configs/nsh -GNinja

This uses ninja generator (install with sudo apt install ninja-build). To build:

$ cmake --build build

menuconfig:

$ cmake --build build -t menuconfig

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2. cmake/build: reformat the cmake style by cmake-format

https://github.com/cheshirekow/cmake_format

$ pip install cmakelang

$ for i in `find -name CMakeLists.txt`;do cmake-format $i -o $i;done
$ for i in `find -name *\.cmake`;do cmake-format $i -o $i;done

Co-authored-by: Matias N <matias@protobits.dev>
Signed-off-by: chao an <anchao@xiaomi.com>
2023-07-08 13:50:48 +08:00

104 lines
3.7 KiB
CMake

# ##############################################################################
# cmake/nuttx_add_symtab.cmake
#
# 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.
#
# ##############################################################################
# nuttx_add_symtab Generates a symbol table of undefined symbols from a set of
# binaries
#
# Parameters: - NAME: name of symtab (output will be symtab_${NAME}.c) -
# BINARIES: list of binary target names to process (dependencies will be added
# to these targets) - PREFIX: optional prefix to add to symtab variable name -
# EXCLUDE: optional list of symbols to exclude (ie: assume they are defined)
function(nuttx_add_symtab)
nuttx_parse_function_args(
FUNC
nuttx_add_symtab
ONE_VALUE
NAME
PREFIX
OPTIONS
HEADER
MULTI_VALUE
EXCLUDE
BINARIES
REQUIRED
NAME
BINARIES
ARGN
${ARGN})
# get path to binaries
set(BINARY_PATHS)
foreach(binary ${BINARIES})
# this way of getting the path will select the actual ELF binary, even when
# this was built by means of an intermediate library on non-ELF platforms
list(APPEND BINARY_PATHS $<TARGET_PROPERTY:${binary},ELF_BINARY>)
endforeach()
if(EXCLUDE)
string(REPLACE ";" " " EXCLUDE_STRING ${EXCLUDE})
endif()
# generate list of undefined symbols
add_custom_command(
OUTPUT symtab_${NAME}.dat
COMMAND ${CMAKE_NM} ${BINARY_PATHS} | fgrep ' U ' | sed -e "s/^[ ]*//g" |
cut -d' ' -f2 | sort | uniq > symtab_${NAME}.dat
COMMAND
if [ \"${EXCLUDE}\" != \"\" ]\; then fgrep -v -x ${EXCLUDE_STRING}
symtab_${NAME}.dat > symtab_${NAME}.dat2\; mv symtab_${NAME}.dat2
symtab_${NAME}.dat\; fi
DEPENDS ${BINARIES})
add_custom_target(symtab_${NAME}_dat DEPENDS symtab_${NAME}.dat)
# generate declarations for symbols and symtab entries as headers
add_custom_command(
OUTPUT symtab_${NAME}_declarations.h symtab_${NAME}_entries.h
COMMAND sed -E 's|\(.+\)|extern void *\\1\;|g' symtab_${NAME}.dat >
symtab_${NAME}_declarations.h
COMMAND sed -E 's|\(.+\)|{ \"\\1\", \\&\\1 },|g' symtab_${NAME}.dat >
symtab_${NAME}_entries.h
DEPENDS symtab_${NAME}_dat)
# generate code which instantiates the symbol table
configure_file(${CMAKE_SOURCE_DIR}/cmake/symtab.c.in symtab_${NAME}.c @ONLY)
# define an internal library to build the symtab file on its own
add_library(symtab_${NAME} OBJECT
${CMAKE_CURRENT_BINARY_DIR}/symtab_${NAME}.c)
# Make the dependance between .c and .h explicit. This is necessary since
# using configure_file() does not seem to allow this to be automatically
# guessed by CMake
set_property(
SOURCE ${CMAKE_CURRENT_BINARY_DIR}/symtab_${NAME}.c
APPEND
PROPERTY OBJECT_DEPENDS
${CMAKE_CURRENT_BINARY_DIR}/symtab_${NAME}_declarations.h
${CMAKE_CURRENT_BINARY_DIR}/symtab_${NAME}_entries.h)
nuttx_add_library_internal(symtab_${NAME})
if(PREFIX)
target_compile_definitions(symtab_${NAME} PRIVATE -DSYMTAB_PREFIX=${PREFIX})
endif()
endfunction()