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Use cmake POSITION_INDEPENDENT_CODE instead of hardcoding -pie -fPIE (#1598)

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This fixes unused option warnings on -pie for macOS.
(On macOS cmake produces "-fPIE -Xlinker -pie")

Bump required cmake version to 3.14 for CheckPIESupported.

References:
https://cmake.org/cmake/help/latest/prop_tgt/POSITION_INDEPENDENT_CODE.html
https://cmake.org/cmake/help/latest/module/CheckPIESupported.html#module:CheckPIESupported
This commit is contained in:
YAMAMOTO Takashi
2022-10-19 02:51:18 +09:00
committed by GitHub
parent e87a554616
commit 654ac5feca
12 changed files with 68 additions and 26 deletions
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9
product-mini/platforms/linux/CMakeLists.txt
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@ -1,7 +1,9 @@
# Copyright (C) 2019 Intel Corporation. All rights reserved.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
cmake_minimum_required (VERSION 2.9)
cmake_minimum_required (VERSION 3.14)
include(CheckPIESupported)
project (iwasm)
@ -119,7 +121,7 @@ set (WAMR_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../..)
include (${WAMR_ROOT_DIR}/build-scripts/runtime_lib.cmake)
add_library(vmlib ${WAMR_RUNTIME_LIB_SOURCE})
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections -pie -fPIE")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wformat -Wformat-security -Wshadow")
# set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wconversion -Wsign-conversion")
@ -164,6 +166,9 @@ include (${SHARED_DIR}/utils/uncommon/shared_uncommon.cmake)
add_executable (iwasm main.c ${UNCOMMON_SHARED_SOURCE})
check_pie_supported()
set_target_properties (iwasm PROPERTIES POSITION_INDEPENDENT_CODE ON)
install (TARGETS iwasm DESTINATION bin)
target_link_libraries (iwasm vmlib ${LLVM_AVAILABLE_LIBS} ${UV_A_LIBS} -lm -ldl -lpthread)