wolfssl-examples/ESP32/DTLS13-wifi-station-client/components/wolfssl/CMakeLists.txt

517 lines
26 KiB
CMake

#
# Copyright (C) 2006-2023 wolfSSL Inc.
#
# This file is part of wolfSSL.
#
# wolfSSL is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# wolfSSL is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
#
# cmake for wolfssl Espressif projects
#
# See https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html
#
# allows /include/user_settings.h (ignores it).
# user_settings.h file to use must be in [project]/components/wolfssl/include
cmake_minimum_required(VERSION 3.16)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_USER_SETTINGS")
set(CMAKE_CURRENT_SOURCE_DIR ".")
set(COMPONENT_REQUIRES lwip) # we typically don't need lwip directly in wolfssl component
set(WOLFCRYPT_PATH "wolfssl/wolfcrypt") # breadcrumb path to detect if we've found wolfssl
# find the user name to search for possible "wolfssl-username"
if( "$ENV{USER}" STREQUAL "" ) # the bash user
if( "$ENV{USERNAME}" STREQUAL "" ) # the Windows user
message(STATUS "Could not find USER or USERNAME.")
else()
# the bash user is not blank, so we'll use it.
set(THIS_USER "$ENV{USERNAME}")
endif()
else()
# the bash user is not blank, so we'll use it.
set(THIS_USER "$ENV{USER}")
endif()
message(STATUS "THIS_USER = ${THIS_USER}")
# COMPONENT_NAME = wolfssl
# The component name is the directory name. "No feature to change this".
# See https://github.com/espressif/esp-idf/issues/8978#issuecomment-1129892685
# set the root of wolfSSL in top-level project CMakelists.txt:
# set(WOLFSSL_ROOT "C:/some path/with/spaces")
# set(WOLFSSL_ROOT "c:/workspace/wolfssl-[username]")
# set(WOLFSSL_ROOT "/mnt/c/some path/with/spaces")
# or use this logic to assign value from Environment Variable WOLFSSL_ROOT,
# or assume this is an example 7 subdirectories below:
# We are typically in [root]/IDE/Espressif/ESP-IDF/examples/wolfssl_test/components/wolfssl
# The root of wolfSSL is 7 directories up from here:
if(CMAKE_BUILD_EARLY_EXPANSION)
message(STATUS "wolfssl component CMAKE_BUILD_EARLY_EXPANSION:")
idf_component_register(
REQUIRES "${COMPONENT_REQUIRES}"
PRIV_REQUIRES esp_timer driver # this will typically only be needed for wolfSSL benchmark
)
else()
# not CMAKE_BUILD_EARLY_EXPANSION
message(STATUS "************************************************************************************************")
message(STATUS "wolfssl component config:")
message(STATUS "************************************************************************************************")
# Check to see if we're already in wolfssl, and only if WOLFSSL_ROOT not specified
if ("${WOLFSSL_ROOT}" STREQUAL "")
# wolfssl examples are 7 directories deep from wolfssl repo root
# 1 2 3 4 5 6 7
set(THIS_RELATIVE_PATH "../../../../../../..")
get_filename_component(THIS_SEARCH_PATH "${THIS_RELATIVE_PATH}" ABSOLUTE)
message(STATUS "Searching in path = ${THIS_SEARCH_PATH}")
if (EXISTS "${THIS_SEARCH_PATH}/${WOLFCRYPT_PATH}")
# we're already in wolfssl examples!
get_filename_component(WOLFSSL_ROOT "${THIS_SEARCH_PATH}" ABSOLUTE)
message(STATUS "Using wolfSSL example with root ${WOLFSSL_ROOT}")
else()
# We're in some other repo such as wolfssh, so we'll search for an
# adjacent-level directory for wolfssl. (8 directories up, then down one)
#
# For example wolfSSL examples:
# C:\workspace\wolfssl-gojimmypi\IDE\Espressif\ESP-IDF\examples\wolfssl_benchmark\components\wolfssl
#
# For example wolfSSH examples:
# C:\workspace\wolfssh-gojimmypi\ide\Espressif\ESP-IDF\examples\wolfssh_benchmark\components\wolfssl
#
# 1 2 3 4 5 6 7 8
set(THIS_RELATIVE_PATH "../../../../../../../..")
get_filename_component(THIS_SEARCH_PATH "${THIS_RELATIVE_PATH}" ABSOLUTE)
message(STATUS "Searching next in path = ${THIS_SEARCH_PATH}")
endif()
endif()
# search other possible locations
if ("${WOLFSSL_ROOT}" STREQUAL "")
# there's not a hard-coded WOLFSSL_ROOT value above, so let's see if we can find it.
if( "$ENV{WOLFSSL_ROOT}" STREQUAL "" )
message(STATUS "Environment Variable WOLFSSL_ROOT not set. Will search common locations.")
message(STATUS "CMAKE_CURRENT_SOURCE_DIR = ${CMAKE_CURRENT_SOURCE_DIR}")
get_filename_component(THIS_DIR "${CMAKE_CURRENT_SOURCE_DIR}" ABSOLUTE)
message(STATUS "THIS_DIR = ${THIS_DIR}")
# This same makefile is used for both the wolfssl component, and other
# components that may depend on wolfssl, such as wolfssh. Therefore
# we need to determine if this makefile is in the wolfssl repo, or
# some other repo.
if( "{THIS_USER}" STREQUAL "" )
# This is highly unusual to not find a user name.
# In this case, we'll just search for a "wolfssl" directory:
message(STATUS "No username found!")
get_filename_component(WOLFSSL_ROOT "${THIS_RELATIVE_PATH}/wolfssl" ABSOLUTE)
else()
# We found an environment USER name!
# The first place to look for wolfssl will be in a user-clone called "wolfssl-[username]"
message(STATUS "Using [THIS_USER = ${THIS_USER}] to see if there's a [relative path]/wolfssl-${THIS_USER} directory.")
get_filename_component(WOLFSSL_ROOT "${THIS_RELATIVE_PATH}/wolfssl-${THIS_USER}" ABSOLUTE)
if( EXISTS "${WOLFSSL_ROOT}/${WOLFCRYPT_PATH}" )
message(STATUS "Found wolfssl in user-suffix ${WOLFSSL_ROOT}")
else()
# If there's not a user-clone called "wolfssl-[username]",
# perhaps there's simply a git clone called "wolfssl"?
message(STATUS "Did not find wolfssl in ${WOLFSSL_ROOT}; continuing search...")
get_filename_component(WOLFSSL_ROOT "${THIS_RELATIVE_PATH}/wolfssl" ABSOLUTE)
if( EXISTS "${WOLFSSL_ROOT}" )
message(STATUS "Found wolfssl in standard ${WOLFSSL_ROOT}")
else()
# Things are looking pretty bleak. We'll likely not be able to compile.
message(STATUS "Did not find wolfssl in ${WOLFSSL_ROOT}")
endif()
endif()
endif()
else()
# there's an environment variable, so use it.
set(WOLFSSL_ROOT "$ENV{WOLFSSL_ROOT}")
if( EXISTS "${WOLFSSL_ROOT}/${WOLFCRYPT_PATH}" )
get_filename_component(WOLFSSL_ROOT "$ENV{WOLFSSL_ROOT}" ABSOLUTE)
message(STATUS "Found WOLFSSL_ROOT via Environment Variable: ${WOLFSSL_ROOT}")
else()
# message(FATAL_ERROR "WOLFSSL_ROOT Environment Variable defined, but path not found:")
message(STATUS "$ENV{WOLFSSL_ROOT} not found or does not contain ${WOLFCRYPT_PATH}")
endif()
endif()
# end of search for wolfssl component root
else()
# There's already a value assigned; we won't search for anything else.
message(STATUS "Found user-specified WOLFSSL_ROOT value.")
endif() # WOLFSSL_ROOT user defined
# After all the logic above, does our WOLFSSL_ROOT actually exist?
if( EXISTS "${WOLFSSL_ROOT}/${WOLFCRYPT_PATH}" )
message(STATUS "WOLFSSL_ROOT = ${WOLFSSL_ROOT}")
else()
# Perhaps we are in wolfssl-examples, 4 directories down from parallel wolfssl?
# First, we'll see if we can find wolfssl in the wolfssl-[username] repo
# 1 2 3 4 |- parallel parent
set(NEXT_RELATIVE_PATH "../../../../../wolfssl-${THIS_USER}")
get_filename_component(THIS_SEARCH_PATH "${NEXT_RELATIVE_PATH}" ABSOLUTE)
message(STATUS "Searching for wolfssl in path: ${THIS_SEARCH_PATH}")
if(EXISTS "${THIS_SEARCH_PATH}/${WOLFCRYPT_PATH}" )
set(WOLFSSL_ROOT "${THIS_SEARCH_PATH}")
message(STATUS "Found wolfssl in user suffix directory: ${WOLFSSL_ROOT}")
else()
# next, let's see if there's jsut a simple clone of wolfssl in the same parent directory
set(NEXT_RELATIVE_PATH "../../../../../wolfssl")
get_filename_component(THIS_SEARCH_PATH "${NEXT_RELATIVE_PATH}" ABSOLUTE)
message(STATUS "Searching wolfssl-examples for path = ${THIS_SEARCH_PATH}")
if( EXISTS "${THIS_SEARCH_PATH}/${WOLFCRYPT_PATH}" )
set(WOLFSSL_ROOT "${THIS_SEARCH_PATH}")
message(STATUS "Found wolfssl in same parent directory: ${WOLFSSL_ROOT}")
else()
message(STATUS "unable to find wolfssl.")
message(STATUS "---- Try setting the WOLFSSL_ROOT environment variable")
message(STATUS "---- Or set WOLFSSL_ROOT in the CMakeFile.txt")
set(WOLFSSL_ROOT "../wolfssl")
# Abort. We need wolfssl _somewhere_.
message(FATAL_ERROR "Could not find wolfssl in ${WOLFSSL_ROOT}. Try setting environment variable or git clone.")
endif() # checking [workspace]/wolfssl
endif() # chcking [workspace]/wolfssl-[username]
endif() # alternate check if in wolfssl-examples
set(INCLUDE_PATH ${WOLFSSL_ROOT})
set(COMPONENT_SRCDIRS "\"${WOLFSSL_ROOT}/src/\""
"\"${WOLFSSL_ROOT}/wolfcrypt/src\""
"\"${WOLFSSL_ROOT}/wolfcrypt/src/port/Espressif\""
"\"${WOLFSSL_ROOT}/wolfcrypt/src/port/atmel\""
# "\"${WOLFSSL_ROOT}/wolfcrypt/benchmark\"" # the benchmark application
# "\"${WOLFSSL_ROOT}/wolfcrypt/test\"" # the test application
) # COMPONENT_SRCDIRS
message(STATUS "This COMPONENT_SRCDIRS = ${COMPONENT_SRCDIRS}")
set(WOLFSSL_PROJECT_DIR "${CMAKE_HOME_DIRECTORY}/components/wolfssl")
# Espressif may take several passes through this makefile. Check to see if we found IDF
string(COMPARE EQUAL "${PROJECT_SOURCE_DIR}" "" WOLFSSL_FOUND_IDF)
# get a list of all wolfcrypt assembly files; we'll exclude them as they don't target Xtensa
file(GLOB EXCLUDE_ASM *.S)
file(GLOB_RECURSE EXCLUDE_ASM ${CMAKE_SOURCE_DIR} "${WOLFSSL_ROOT}/wolfcrypt/src/*.S")
message(STATUS "IDF_PATH = $ENV{IDF_PATH}")
message(STATUS "PROJECT_SOURCE_DIR = ${PROJECT_SOURCE_DIR}")
message(STATUS "EXCLUDE_ASM = ${EXCLUDE_ASM}")
#
# Check to see if there's both a local copy and EDP-IDF copy of the wolfssl and/or wolfssh components.
#
if( EXISTS "${WOLFSSL_PROJECT_DIR}" AND EXISTS "$ENV{IDF_PATH}/components/wolfssl/" )
#
# wolfSSL found in both ESP-IDF and local project - needs to be resolved by user
#
message(STATUS "")
message(STATUS "**************************************************************************************")
message(STATUS "")
message(STATUS "Error: Found components/wolfssl in both local project and IDF_PATH")
message(STATUS "")
message(STATUS "To proceed: ")
message(STATUS "")
message(STATUS "Remove either the local project component: ${WOLFSSL_PROJECT_DIR} ")
message(STATUS "or the Espressif shared component installed at: $ENV{IDF_PATH}/components/wolfssl/ ")
message(STATUS "")
message(FATAL_ERROR "Please use wolfSSL in either local project or Espressif components, but not both.")
message(STATUS "")
message(STATUS "**************************************************************************************")
message(STATUS "")
# Optional: if you change the above FATAL_ERROR to STATUS you can warn at runtime with this macro definition:
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DWOLFSSL_MULTI_INSTALL_WARNING")
else()
if( EXISTS "$ENV{IDF_PATH}/components/wolfssl/" )
#
# wolfSSL found in ESP-IDF components and is assumed to be already configured in user_settings.h via setup.
#
message(STATUS "")
message(STATUS "Using components/wolfssl in IDF_PATH = $ENV{IDF_PATH}")
message(STATUS "")
else()
#
# wolfSSL is not an ESP-IDF component.
# We need to now determine if it is local and if so if it is part of the wolfSSL repo,
# or if wolfSSL is simply installed as a local component.
#
if( EXISTS "${WOLFSSL_PROJECT_DIR}" )
#
# wolfSSL found in local project.
#
if( EXISTS "${WOLFSSL_PROJECT_DIR}/wolfcrypt/" )
message(STATUS "")
message(STATUS "Using installed project ./components/wolfssl in CMAKE_HOME_DIRECTORY = ${CMAKE_HOME_DIRECTORY}")
message(STATUS "")
#
# Note we already checked above and confirmed there's not another wolfSSL installed in the ESP-IDF components.
#
# We won't do anything else here, as it will be assumed the original install completed successfully.
#
else() # full wolfSSL not installed in local project
#
# This is the developer repo mode. wolfSSL will be assumed to be not installed to ESP-IDF nor local project
# In this configuration, we are likely running a wolfSSL example found directly in the repo.
#
message(STATUS "")
message(STATUS "Using developer repo ./components/wolfssl in CMAKE_HOME_DIRECTORY = ${CMAKE_HOME_DIRECTORY}")
message(STATUS "")
message(STATUS "************************************************************************************************")
# When in developer mode, we are typically running wolfSSL examples such as benchmark or test directories.
# However, the as-cloned or distributed wolfSSL does not have the ./include/ directory, so we'll add it as needed.
#
# first check if there's a [root]/include/user_settings.h
if( EXISTS "${WOLFSSL_ROOT}/include/user_settings.h" )
message(STATUS "Found wolfSSL EXCLUDED user_settings.h in "
"${WOLFSSL_ROOT}/include/user_settings.h "
" (using ${WOLFSSL_PROJECT_DIR}/include/user_settings.h )")
else()
# we won't overwrite an existing user settings file, just note that we already have one:
if( EXISTS "${WOLFSSL_PROJECT_DIR}/include/user_settings.h" )
message(STATUS "Using existing wolfSSL user_settings.h in "
"${WOLFSSL_PROJECT_DIR}/include/user_settings.h")
else()
message(STATUS "Installing wolfSSL user_settings.h to "
"${WOLFSSL_PROJECT_DIR}/include/user_settings.h")
file(COPY "${WOLFSSL_ROOT}/IDE/Espressif/ESP-IDF/user_settings.h"
DESTINATION "${CMAKE_HOME_DIRECTORY}/wolfssl/include/")
endif()
endif() # user_settings.h
# next check if there's a [root]/include/config.h
if( EXISTS "${WOLFSSL_ROOT}/include/config.h" )
# message(FATAL_ERROR "Found stray wolfSSL config.h in ${WOLFSSL_ROOT}/include/config.h (please move it to ${WOLFSSL_PROJECT_DIR}/include/config.h")
else()
# we won't overwrite an existing user settings file, just note that we already have one:
if( EXISTS "${WOLFSSL_PROJECT_DIR}/include/config.h" )
message(STATUS "Using existing wolfSSL config.h ${WOLFSSL_PROJECT_DIR}/include/config.h")
else()
message(STATUS "Installing wolfSSL config.h to ${WOLFSSL_PROJECT_DIR}/include/config.h")
file(COPY "${WOLFSSL_ROOT}/IDE/Espressif/ESP-IDF/dummy_config_h" DESTINATION "${WOLFSSL_PROJECT_DIR}/include/")
file(RENAME "${WOLFSSL_PROJECT_DIR}/include/dummy_config_h" "${WOLFSSL_PROJECT_DIR}/include/config.h")
endif() # Project config.h
endif() # WOLFSSL_ROOT config.h
message(STATUS "************************************************************************************************")
message(STATUS "")
endif()
else()
# we did not find a ./components/wolfssl/include/ directory from this pass of cmake.
if($WOLFSSL_FOUND_IDF)
message(STATUS "")
message(STATUS "WARNING: wolfSSL not found.")
message(STATUS "")
else()
# probably needs to be re-parsed by Espressif
message(STATUS "wolfSSL found IDF. Project Source:${PROJECT_SOURCE_DIR}")
endif() # else we have not found ESP-IDF yet
endif() # else not a local wolfSSL component
endif() #else not an ESP-IDF component
endif() # else not local copy and EDP-IDF wolfSSL
# RTOS_IDF_PATH is typically:
# "/Users/{username}/Desktop/esp-idf/components/freertos/include/freertos"
# depending on the environment, we may need to swap backslashes with forward slashes
string(REPLACE "\\" "/" RTOS_IDF_PATH "$ENV{IDF_PATH}/components/freertos/FreeRTOS-Kernel/include/freertos")
string(REPLACE "\\" "/" WOLFSSL_ROOT ${WOLFSSL_ROOT})
if(IS_DIRECTORY "${RTOS_IDF_PATH}")
message(STATUS "Found current RTOS path: ${RTOS_IDF_PATH}")
else()
# ESP-IDF prior version 4.4x has a different RTOS directory structure
string(REPLACE "\\" "/" RTOS_IDF_PATH "$ENV{IDF_PATH}/components/freertos/include/freertos")
if(IS_DIRECTORY "${RTOS_IDF_PATH}")
message(STATUS "Found legacy RTOS path: ${RTOS_IDF_PATH}")
else()
message(STATUS "Could not find RTOS path")
endif()
endif()
set(COMPONENT_ADD_INCLUDEDIRS
"./include" # this is the location of wolfssl user_settings.h
"\"${WOLFSSL_ROOT}/\""
"\"${WOLFSSL_ROOT}/wolfssl/\""
"\"${WOLFSSL_ROOT}/wolfssl/wolfcrypt/\""
"\"${RTOS_IDF_PATH}/\""
)
if(IS_DIRECTORY ${IDF_PATH}/components/cryptoauthlib)
list(APPEND COMPONENT_ADD_INCLUDEDIRS "../cryptoauthlib/lib")
endif()
list(APPEND COMPONENT_ADD_INCLUDEDIRS "\"${WOLFSSL_ROOT}/wolfssl/\"")
list(APPEND COMPONENT_ADD_INCLUDEDIRS "\"${WOLFSSL_ROOT}/wolfssl/wolfcrypt/\"")
set(COMPONENT_SRCEXCLUDE
"\"${WOLFSSL_ROOT}/include/user_settings.h\"" # use local file only
"\"${WOLFSSL_ROOT}/src/bio.c\""
"\"${WOLFSSL_ROOT}/src/conf.c\""
"\"${WOLFSSL_ROOT}/src/misc.c\""
"\"${WOLFSSL_ROOT}/src/pk.c\""
"\"${WOLFSSL_ROOT}/src/ssl_asn1.c\"" # included by ssl.c
"\"${WOLFSSL_ROOT}/src/ssl_certman.c\"" # included by ssl.c
"\"${WOLFSSL_ROOT}/src/ssl_bn.c\"" # included by ssl.c
"\"${WOLFSSL_ROOT}/src/ssl_misc.c\"" # included by ssl.c
"\"${WOLFSSL_ROOT}/src/x509.c\""
"\"${WOLFSSL_ROOT}/src/x509_str.c\""
"\"${WOLFSSL_ROOT}/wolfcrypt/src/evp.c\""
"\"${WOLFSSL_ROOT}/wolfcrypt/src/misc.c\""
"\"${EXCLUDE_ASM}\""
)
spaces2list(COMPONENT_REQUIRES)
separate_arguments(COMPONENT_SRCDIRS NATIVE_COMMAND "${COMPONENT_SRCDIRS}")
separate_arguments(COMPONENT_SRCEXCLUDE NATIVE_COMMAND "${COMPONENT_SRCEXCLUDE}")
separate_arguments(COMPONENT_ADD_INCLUDEDIRS NATIVE_COMMAND "${COMPONENT_ADD_INCLUDEDIRS}")
#
# See https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html#example-component-requirements
#
message(STATUS "COMPONENT_SRCDIRS = ${COMPONENT_SRCDIRS}")
message(STATUS "COMPONENT_ADD_INCLUDEDIRS = ${COMPONENT_ADD_INCLUDEDIRS}")
message(STATUS "COMPONENT_REQUIRES = ${COMPONENT_REQUIRES}")
message(STATUS "COMPONENT_SRCEXCLUDE = ${COMPONENT_SRCEXCLUDE}")
#
# see https://docs.espressif.com/projects/esp-idf/en/stable/esp32/migration-guides/release-5.x/build-system.html?highlight=space%20path
#
set(EXTRA_COMPONENT_DIRS "${COMPONENT_SRCDIRS}")
idf_component_register(
SRC_DIRS "${COMPONENT_SRCDIRS}"
INCLUDE_DIRS "${COMPONENT_ADD_INCLUDEDIRS}"
REQUIRES "${COMPONENT_REQUIRES}"
EXCLUDE_SRCS "${COMPONENT_SRCEXCLUDE}"
PRIV_REQUIRES esp_timer driver # this will typically only be needed for wolfSSL benchmark
)
# some optional diagnostics
if (1)
get_cmake_property(_variableNames VARIABLES)
list (SORT _variableNames)
message(STATUS "")
message(STATUS "ALL VARIABLES BEGIN")
message(STATUS "")
foreach (_variableName ${_variableNames})
message(STATUS "${_variableName}=${${_variableName}}")
endforeach()
message(STATUS "")
message(STATUS "ALL VARIABLES END")
message(STATUS "")
endif()
# target_sources(wolfssl PRIVATE "\"${WOLFSSL_ROOT}/wolfssl/\"" "\"${WOLFSSL_ROOT}/wolfssl/wolfcrypt\"")
endif() # CMAKE_BUILD_EARLY_EXPANSION
# check to see if there's both a local copy and EDP-IDF copy of the wolfssl components
if( EXISTS "${WOLFSSL_PROJECT_DIR}" AND EXISTS "$ENV{IDF_PATH}/components/wolfssl/" )
message(STATUS "")
message(STATUS "")
message(STATUS "********************************************************************")
message(STATUS "WARNING: Found components/wolfssl in both local project and IDF_PATH")
message(STATUS "********************************************************************")
message(STATUS "")
endif()
# end multiple component check
#
# LIBWOLFSSL_SAVE_INFO(VAR_OUPUT THIS_VAR VAR_RESULT)
#
# Save the THIS_VAR as a string in a macro called VAR_OUPUT
#
# VAR_OUPUT: the name of the macro to define
# THIS_VAR: the OUTPUT_VARIABLE result from a execute_process()
# VAR_RESULT: the RESULT_VARIABLE from a execute_process(); "0" if successful.
#
function ( LIBWOLFSSL_SAVE_INFO VAR_OUPUT THIS_VAR VAR_RESULT )
# is the RESULT_VARIABLE output value 0? If so, IS_VALID_VALUE is true.
string(COMPARE EQUAL "${VAR_RESULT}" "0" IS_VALID_VALUE)
# if we had a successful operation, save the THIS_VAR in VAR_OUPUT
if(${IS_VALID_VALUE})
# strip newline chars in THIS_VAR parameter and save in VAR_VALUE
string(REPLACE "\n" "" VAR_VALUE ${THIS_VAR})
# we'll could percolate the value to the parent for possible later use
# set(${VAR_OUPUT} ${VAR_VALUE} PARENT_SCOPE)
# but we're only using it here in this function
set(${VAR_OUPUT} ${VAR_VALUE})
# we'll print what we found to the console
message(STATUS "Found ${VAR_OUPUT}=${VAR_VALUE}")
# the interesting part is defining the VAR_OUPUT name a value to use in the app
add_definitions(-D${VAR_OUPUT}=\"${VAR_VALUE}\")
else()
# if we get here, check the execute_process command and parameters.
message(STATUS "LIBWOLFSSL_SAVE_INFO encountered a non-zero VAR_RESULT")
set(${VAR_OUPUT} "Unknown")
endif()
endfunction() # LIBWOLFSSL_SAVE_INFO
# create some programmatic #define values that will be used by ShowExtendedSystemInfo().
# see wolfcrypt\src\port\Espressif\esp32_utl.c
if(NOT CMAKE_BUILD_EARLY_EXPANSION)
set (git_cmd "git")
message(STATUS "Adding macro definitions:")
# LIBWOLFSSL_VERSION_GIT_ORIGIN: git config --get remote.origin.url
execute_process(WORKING_DIRECTORY ${WOLFSSL_ROOT} COMMAND ${git_cmd} "config" "--get" "remote.origin.url" OUTPUT_VARIABLE TMP_OUT RESULT_VARIABLE TMP_RES ERROR_QUIET )
LIBWOLFSSL_SAVE_INFO(LIBWOLFSSL_VERSION_GIT_ORIGIN "${TMP_OUT}" "${TMP_RES}")
# LIBWOLFSSL_VERSION_GIT_BRANCH: git rev-parse --abbrev-ref HEAD
execute_process(WORKING_DIRECTORY ${WOLFSSL_ROOT} COMMAND ${git_cmd} "rev-parse" "--abbrev-ref" "HEAD" OUTPUT_VARIABLE TMP_OUT RESULT_VARIABLE TMP_RES ERROR_QUIET )
LIBWOLFSSL_SAVE_INFO(LIBWOLFSSL_VERSION_GIT_BRANCH "${TMP_OUT}" "${TMP_RES}")
# LIBWOLFSSL_VERSION_GIT_HASH: git rev-parse HEAD
execute_process(WORKING_DIRECTORY ${WOLFSSL_ROOT} COMMAND ${git_cmd} "rev-parse" "HEAD" OUTPUT_VARIABLE TMP_OUT RESULT_VARIABLE TMP_RES ERROR_QUIET )
LIBWOLFSSL_SAVE_INFO(LIBWOLFSSL_VERSION_GIT_HASH "${TMP_OUT}" "${TMP_RES}")
# LIBWOLFSSL_VERSION_GIT_SHORT_HASH: git rev-parse --short HEAD
execute_process(WORKING_DIRECTORY ${WOLFSSL_ROOT} COMMAND ${git_cmd} "rev-parse" "--short" "HEAD" OUTPUT_VARIABLE TMP_OUT RESULT_VARIABLE TMP_RES ERROR_QUIET )
LIBWOLFSSL_SAVE_INFO(LIBWOLFSSL_VERSION_GIT_SHORT_HASH "${TMP_OUT}" "${TMP_RES}")
# LIBWOLFSSL_VERSION_GIT_HASH_DATE git show --no-patch --no-notes --pretty=\'\%cd\'
execute_process(WORKING_DIRECTORY ${WOLFSSL_ROOT} COMMAND ${git_cmd} "show" "--no-patch" "--no-notes" "--pretty=\'\%cd\'" OUTPUT_VARIABLE TMP_OUT RESULT_VARIABLE TMP_RES )
LIBWOLFSSL_SAVE_INFO(LIBWOLFSSL_VERSION_GIT_HASH_DATE "${TMP_OUT}" "${TMP_RES}")
message(STATUS "************************************************************************************************")
message(STATUS "wolfssl component config complete!")
message(STATUS "************************************************************************************************")
endif()