Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 1 | #---------------------------------------------------------------------------- |
| 2 | # Copyright (c) 2021 Arm Limited. All rights reserved. |
| 3 | # SPDX-License-Identifier: Apache-2.0 |
| 4 | # |
| 5 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | # you may not use this file except in compliance with the License. |
| 7 | # You may obtain a copy of the License at |
| 8 | # |
| 9 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | # |
| 11 | # Unless required by applicable law or agreed to in writing, software |
| 12 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | # See the License for the specific language governing permissions and |
| 15 | # limitations under the License. |
| 16 | #---------------------------------------------------------------------------- |
| 17 | # specify the cross compiler |
| 18 | set(TRIPLET arm-none-eabi) |
| 19 | |
| 20 | set(CMAKE_C_COMPILER ${TRIPLET}-gcc) |
| 21 | set(CMAKE_CXX_COMPILER ${TRIPLET}-g++) |
| 22 | |
| 23 | set(CMAKE_CROSSCOMPILING true) |
| 24 | set(CMAKE_SYSTEM_NAME Generic) |
| 25 | |
| 26 | set(MIN_GCC_VERSION 10.2.1) |
| 27 | |
| 28 | # Skip compiler test execution |
| 29 | set(CMAKE_C_COMPILER_WORKS 1) |
| 30 | set(CMAKE_CXX_COMPILER_WORKS 1) |
| 31 | set(PLATFORM_HAL 1) |
| 32 | |
| 33 | if (NOT DEFINED CMAKE_SYSTEM_PROCESSOR) |
| 34 | set(CMAKE_SYSTEM_PROCESSOR cortex-m55) |
| 35 | endif() |
| 36 | |
| 37 | if (CMAKE_SYSTEM_PROCESSOR STREQUAL cortex-m55) |
| 38 | # Flags for cortex-m55 |
ayamas01 | 15f8070 | 2021-11-18 14:22:23 +0000 | [diff] [blame] | 39 | set(CPU_ID M55) |
| 40 | set(CPU_COMPILE_DEF CPU_CORTEX_${CPU_ID}) |
Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 41 | set(CPU_NAME ${CMAKE_SYSTEM_PROCESSOR}) |
ayamas01 | 15f8070 | 2021-11-18 14:22:23 +0000 | [diff] [blame] | 42 | set(ARM_CPU "ARMC${CPU_ID}") |
Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 43 | set(FLOAT_ABI hard) |
| 44 | set(ARM_MATH_DSP 1) |
| 45 | set(ARM_MATH_LOOPUNROLL 1) |
ayamas01 | 15f8070 | 2021-11-18 14:22:23 +0000 | [diff] [blame] | 46 | set(CPU_HEADER_FILE "${ARM_CPU}.h") |
| 47 | set(CPU_LINK_OPT "--cpu=Cortex-${CPU_ID}") |
Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 48 | elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL cortex-m33) |
| 49 | # Flags for cortex-m33 to go here |
| 50 | endif() |
| 51 | |
| 52 | set(${CPU_COMPILE_DEF} 1) |
| 53 | |
| 54 | # Warning options |
| 55 | add_compile_options( |
| 56 | -Wall |
| 57 | -Wextra |
| 58 | -Wvla |
| 59 | -Wno-psabi) |
| 60 | |
| 61 | # General purpose compile options: |
| 62 | add_compile_options( |
| 63 | -funsigned-char |
| 64 | -fno-function-sections |
Kshitij Sisodia | 661959c | 2021-11-24 10:39:52 +0000 | [diff] [blame] | 65 | -fdata-sections |
Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 66 | "$<$<COMPILE_LANGUAGE:CXX>:-fno-unwind-tables;-fno-rtti;-fno-exceptions>") |
| 67 | |
| 68 | # Arch compile options: |
| 69 | add_compile_options( |
| 70 | -mthumb |
| 71 | -mcpu=${CPU_NAME} |
| 72 | -mfloat-abi=${FLOAT_ABI} |
| 73 | -mlittle-endian |
| 74 | -MD) |
| 75 | |
| 76 | # Compile definitions: |
| 77 | add_compile_definitions( |
| 78 | PLATFORM_HAL=${PLATFORM_HAL} |
ayamas01 | 15f8070 | 2021-11-18 14:22:23 +0000 | [diff] [blame] | 79 | CPU_HEADER_FILE=\"${CPU_HEADER_FILE}\" |
| 80 | $<$<BOOL:${CPU_COMPILE_DEF}>:${CPU_COMPILE_DEF}> |
Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 81 | $<$<BOOL:${ARM_MATH_DSP}>:ARM_MATH_DSP> |
| 82 | $<$<BOOL:${ARM_MATH_LOOPUNROLL}>:ARM_MATH_LOOPUNROLL>) |
| 83 | |
| 84 | # Link options: |
| 85 | add_link_options( |
| 86 | -mthumb |
| 87 | -mcpu=${CPU_NAME} |
| 88 | -mfloat-abi=${FLOAT_ABI} |
| 89 | -mlittle-endian |
| 90 | --specs=nosys.specs |
| 91 | --stats |
Kshitij Sisodia | 661959c | 2021-11-24 10:39:52 +0000 | [diff] [blame] | 92 | "SHELL:-Xlinker --gc-sections" |
Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 93 | "$<$<CONFIG:RELEASE>:--no-debug>") |
| 94 | |
| 95 | # Function to add a map file output for the linker to dump diagnostic information to. |
| 96 | function(add_target_map_file TARGET_NAME MAP_FILE_PATH) |
| 97 | target_link_options(${TARGET_NAME} PUBLIC |
Kshitij Sisodia | 661959c | 2021-11-24 10:39:52 +0000 | [diff] [blame] | 98 | "SHELL:-Xlinker -Map=${MAP_FILE_PATH}") |
Kshitij Sisodia | f9c19ea | 2021-05-07 16:08:14 +0100 | [diff] [blame] | 99 | endfunction() |
| 100 | |
| 101 | # Function to add linker option to use the chosen linker script. |
| 102 | function(add_linker_script SCRIPT_DIR SCRIPT_NAME) |
| 103 | set(LINKER_SCRIPT_PATH ${SCRIPT_DIR}/${SCRIPT_NAME}.ld |
| 104 | CACHE STRING "Linker script path") |
| 105 | if (NOT EXISTS ${LINKER_SCRIPT_PATH}) |
| 106 | message(FATAL_ERROR "Linker script not found: ${LINKER_SCRIPT_PATH}") |
| 107 | endif() |
| 108 | message(STATUS "Using linker script: ${LINKER_SCRIPT_PATH}") |
| 109 | add_link_options("SHELL:-T ${LINKER_SCRIPT_PATH}") |
| 110 | endfunction() |
| 111 | |
| 112 | # Function to set the command to copy/extract contents from an elf |
| 113 | # into a binary file. |
| 114 | function(add_bin_generation_command) |
| 115 | |
| 116 | set(multiValueArgs SECTION_PATTERNS OUTPUT_BIN_NAMES) |
| 117 | set(oneValueArgs TARGET_NAME OUTPUT_DIR AXF_PATH) |
| 118 | cmake_parse_arguments(PARSED "" "${oneValueArgs}" "${multiValueArgs}" ${ARGN}) |
| 119 | |
| 120 | list(LENGTH PARSED_SECTION_PATTERNS N_SECTION_PATTERNS) |
| 121 | list(LENGTH PARSED_OUTPUT_BIN_NAMES N_OUTPUT_BIN_NAMES) |
| 122 | |
| 123 | if (NOT ${N_SECTION_PATTERNS} STREQUAL ${N_OUTPUT_BIN_NAMES}) |
| 124 | message(FATAL_ERROR "Section patterns and the output binary names " |
| 125 | "should be of the same length") |
| 126 | endif() |
| 127 | |
| 128 | message(STATUS "${TRIPLET}-objcopy requested to generate " |
| 129 | "${N_OUTPUT_BIN_NAMES} bin files.") |
| 130 | |
| 131 | math(EXPR MAX_IDX "${N_SECTION_PATTERNS} - 1") |
| 132 | |
| 133 | foreach(IDX RANGE ${MAX_IDX}) |
| 134 | |
| 135 | list(GET PARSED_OUTPUT_BIN_NAMES ${IDX} OUTPUT_BIN_NAME) |
| 136 | list(GET PARSED_SECTION_PATTERNS ${IDX} SECTION_PATTERN) |
| 137 | |
| 138 | add_custom_command(TARGET ${PARSED_TARGET_NAME} |
| 139 | POST_BUILD |
| 140 | COMMAND ${TRIPLET}-objcopy -O binary |
| 141 | --only-section ${SECTION_PATTERN} ${PARSED_AXF_PATH} |
| 142 | ${PARSED_OUTPUT_DIR}/${OUTPUT_BIN_NAME}) |
| 143 | endforeach() |
| 144 | |
| 145 | endfunction() |
| 146 | |
| 147 | # Function to assert the compiler version |
| 148 | function(enforce_compiler_version) |
| 149 | if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${MIN_GCC_VERSION}) |
| 150 | message( FATAL_ERROR "arm-none-eabi-gcc version must be ${MIN_GCC_VERSION} or greater to support ${CMAKE_SYSTEM_PROCESSOR} architecture." ) |
| 151 | endif() |
| 152 | endfunction() |