pandemonium_engine/misc/build-containers/files/patches/osxcross-pr284-compiler-rt.patch

119 lines
3.9 KiB
Diff

From b875d7c1360c8ff2077463d7a5a12e1cff1cc683 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Verschelde?= <rverschelde@gmail.com>
Date: Mon, 12 Jul 2021 13:34:32 +0200
Subject: [PATCH] compiler-rt: Add option to automate install process
Also mention that compiler-rt can be needed to build code using
`__builtin_available()`.
Fixes #278.
---
README.COMPILER-RT.md | 4 ++++
README.md | 3 +++
build_compiler_rt.sh | 33 ++++++++++++++++++++++++---------
3 files changed, 31 insertions(+), 9 deletions(-)
diff --git a/README.COMPILER-RT.md b/README.COMPILER-RT.md
index b2754dfcf..dced89686 100644
--- a/README.COMPILER-RT.md
+++ b/README.COMPILER-RT.md
@@ -10,6 +10,10 @@ Ensure you have finished `build.sh`,
then run: `./build_compiler_rt.sh`.
+By default, installation steps for compiler-rt will be printed to the terminal
+to run manually, but you can automate the installation process by defining
+`ENABLE_COMPILER_RT_INSTALL`.
+
You can verify compiler-rt is working by invoking the following command:
echo "int main(void){return 0;}" | xcrun clang -xc -o/dev/null -v - 2>&1 | \
diff --git a/README.md b/README.md
index 60d19f917..f32bf626c 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,9 @@ It also includes scripts for optionally building
* the "compiler-rt" runtime library, and
* the `llvm-dsymutil` tool required for debugging.
+Note: The "compiler-rt" library can be needed to link code that uses the
+`__builtin_available()` runtime version check.
+
### WHAT CAN BE BUILT WITH IT? ###
diff --git a/build_compiler_rt.sh b/build_compiler_rt.sh
index 8f47262a2..508742cab 100755
--- a/build_compiler_rt.sh
+++ b/build_compiler_rt.sh
@@ -182,22 +182,39 @@ fi
rm -f $BUILD_DIR/.compiler-rt_build_complete
+# Installation. Can be either automated (ENABLE_COMPILER_RT_INSTALL) or will
+# print the commands that the user should run manually.
+
+function print_or_run() {
+ if [ -z "$ENABLE_COMPILER_RT_INSTALL" ]; then
+ echo "$@"
+ else
+ $@
+ fi
+}
+
echo ""
echo ""
echo ""
-echo "Please run the following commands by hand to install compiler-rt:"
+if [ -z "$ENABLE_COMPILER_RT_INSTALL" ]; then
+ echo "Please run the following commands by hand to install compiler-rt:"
+else
+ echo "Installing compiler-rt headers and libraries to the following paths:"
+ echo " ${CLANG_INCLUDE_DIR}"
+ echo " ${CLANG_DARWIN_LIB_DIR}"
+fi
echo ""
-echo "mkdir -p ${CLANG_INCLUDE_DIR}"
-echo "mkdir -p ${CLANG_DARWIN_LIB_DIR}"
-echo "cp -rv $BUILD_DIR/compiler-rt/compiler-rt/include/sanitizer ${CLANG_INCLUDE_DIR}"
+print_or_run mkdir -p ${CLANG_INCLUDE_DIR}
+print_or_run mkdir -p ${CLANG_DARWIN_LIB_DIR}
+print_or_run cp -rv $BUILD_DIR/compiler-rt/compiler-rt/include/sanitizer ${CLANG_INCLUDE_DIR}
if [ $USE_CMAKE -eq 1 ]; then
### CMAKE ###
- echo "cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.a ${CLANG_DARWIN_LIB_DIR}"
- echo "cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.dylib ${CLANG_DARWIN_LIB_DIR}"
+ print_or_run cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.a ${CLANG_DARWIN_LIB_DIR}
+ print_or_run cp -v $BUILD_DIR/compiler-rt/compiler-rt/build/lib/darwin/*.dylib ${CLANG_DARWIN_LIB_DIR}
### CMAKE END ###
@@ -209,7 +226,7 @@ else
function print_install_command() {
if [ -f "$1" ]; then
- echo "cp $PWD/compiler-rt/$1 ${CLANG_DARWIN_LIB_DIR}/$2"
+ print_or_run cp $PWD/compiler-rt/$1 ${CLANG_DARWIN_LIB_DIR}/$2
fi
}
@@ -219,14 +236,12 @@ else
print_install_command "cc_kext/libcompiler_rt.a" "libclang_rt.cc_kext.a"
print_install_command "profile_osx/libcompiler_rt.a" "libclang_rt.profile_osx.a"
-
print_install_command "ubsan_osx_dynamic/libcompiler_rt.dylib" \
"libclang_rt.ubsan_osx_dynamic.dylib"
print_install_command "asan_osx_dynamic/libcompiler_rt.dylib" \
"libclang_rt.asan_osx_dynamic.dylib"
-
popd &>/dev/null
### MAKE END ###