Add "_main" as alias to "Konan_main" via LLVMAddAlias

konan/konan.properties

@@ -58,7 +58,6 @@ linkerDynamicFlags.macos_x64 = -dylib
 osVersionMinFlagLd.macos_x64 = -macosx_version_min
 osVersionMinFlagClang.macos_x64 = -mmacosx-version-min
 osVersionMin.macos_x64 = 10.11
-entrySelector.macos_x64 = -alias _Konan_main _main
 dependencies.macos_x64 = \
     libffi-3.2.1-3-darwin-macos \
     lldb-1-macos \
@@ -84,7 +83,6 @@ target-sysroot-9-ios_arm32.default = \
   remote:internal
 
 arch.ios_arm32 = armv7
-entrySelector.ios_arm32 = -alias _Konan_main _main
 # Shared with 64-bit version.
 targetSysRoot.ios_arm32 = target-sysroot-9-ios_arm64
 
@@ -111,7 +109,6 @@ target-sysroot-9-ios_arm64.default = \
   remote:internal
 
 arch.ios_arm64 = arm64
-entrySelector.ios_arm64 = -alias _Konan_main _main
 targetSysRoot.ios_arm64 = target-sysroot-9-ios_arm64
 
 clangFlags.ios_arm64 = -cc1 -emit-obj -disable-llvm-passes -x ir
@@ -138,7 +135,6 @@ target-sysroot-9-ios_x64.default = \
   remote:internal
 
 arch.ios_x64 = x86_64
-entrySelector.ios_x64 = -alias _Konan_main _main
 targetSysRoot.ios_x64 = target-sysroot-9-ios_x64
 
 clangFlags.ios_x64 = -cc1 -emit-obj -disable-llvm-passes -x ir
@@ -197,7 +193,6 @@ linkerNoDebugFlags.linux_x64 = -S
 linkerDynamicFlags.linux_x64 = -shared
 pluginOptimizationFlags.linux_x64 = -plugin-opt=target-cpu x86-64 -plugin-opt=O3
 dynamicLinker.linux_x64 = /lib64/ld-linux-x86-64.so.2
-entrySelector.linux_x64 = --defsym main=Konan_main
 # targetSysRoot relative
 abiSpecificLibraries.linux_x64 = ../lib64 lib64 usr/lib64
 
@@ -222,7 +217,6 @@ dependencies.macos_x64-linux_arm32_hfp = \
     target-sysroot-2-raspberrypi
 
 quadruple.linux_arm32_hfp = armv6-unknown-linux-gnueabihf
-entrySelector.linux_arm32_hfp = --defsym main=Konan_main
 linkerNoDebugFlags.linux_arm32_hfp = -S
 linkerDynamicFlags.linux_arm32_hfp = -shared
 linkerOptimizationFlags.linux_arm32_hfp = --gc-sections
@@ -265,7 +259,6 @@ dependencies.macos_x64-linux_arm64 = \
     target-sysroot-1-linux-glibc-arm64
 
 quadruple.linux_arm64 = aarch64-unknown-linux-gnu
-entrySelector.linux_arm64 = --defsym main=Konan_main
 linkerNoDebugFlags.linux_arm64 = -S
 linkerDynamicFlags.linux_arm64 = -shared
 linkerOptimizationFlags.linux_arm64 = --gc-sections
@@ -297,7 +290,6 @@ dependencies.linux_x64-linux_mips32 = \
     libffi-3.2.1-2-linux-x86-64
 
 quadruple.linux_mips32 = mips-unknown-linux-gnu
-entrySelector.linux_mips32 = --defsym main=Konan_main
 linkerOptimizationFlags.linux_mips32 = --gc-sections
 linkerDynamicFlags.linux_mips32 = -shared
 targetSysRoot.linux_mips32 = target-sysroot-2-mips
@@ -324,7 +316,6 @@ dependencies.linux_x64-linux_mipsel32 = \
     target-sysroot-2-mipsel \
     libffi-3.2.1-2-linux-x86-64
 quadruple.linux_mipsel32 = mipsel-unknown-linux-gnu
-entrySelector.linux_mipsel32 = --defsym main=Konan_main
 linkerOptimizationFlags.linux_mipsel32 = --gc-sections
 linkerDynamicFlags.linux_mipsel32 = -shared
 targetSysRoot.linux_mipsel32 = target-sysroot-2-mipsel
@@ -363,7 +354,6 @@ dependencies.mingw_x64-android_arm32 = \
     libffi-3.2.1-mingw-w64-x86-64
 
 quadruple.android_arm32 = arm-linux-androideabi
-entrySelector.android_arm32 = -Wl,--defsym -Wl,main=Konan_main
 clangFlags.android_arm32 = -cc1 -target-cpu arm7tdmi -emit-obj -disable-llvm-optzns -x ir -femulated-tls -mrelocation-model pic
 clangOptFlags.android_arm32 = -O3 -ffunction-sections
 linkerNoDebugFlags.android_arm32 = -Wl,-S
@@ -392,7 +382,6 @@ dependencies.mingw_x64-android_arm64 = \
     libffi-3.2.1-mingw-w64-x86-64
 
 quadruple.android_arm64 = aarch64-linux-android
-entrySelector.android_arm64 =  -Wl,--defsym -Wl,main=Konan_main
 clangFlags.android_arm64 = -cc1 -target-cpu cortex-a57 -emit-obj -disable-llvm-passes -x ir -femulated-tls -mrelocation-model pic
 clangOptFlags.android_arm64 = -O3 -ffunction-sections
 clangNooptFlags.android_arm64 = -O1
@@ -421,7 +410,6 @@ dependencies.mingw_x64-android_x86 = \
     libffi-3.2.1-mingw-w64-x86-64
 
 quadruple.android_x86 = i686-linux-android
-entrySelector.android_x86 = -Wl,--defsym -Wl,main=Konan_main
 clangFlags.android_x86 = -cc1 -target-cpu i686 -emit-obj -disable-llvm-passes -x ir -femulated-tls -mrelocation-model pic
 clangOptFlags.android_x86 = -O3 -ffunction-sections
 clangNooptFlags.android_x86 = -O1
@@ -450,7 +438,6 @@ dependencies.mingw_x64-android_x64 = \
     libffi-3.2.1-mingw-w64-x86-64
 
 quadruple.android_x64 = x86_64-linux-android
-entrySelector.android_x64 = -Wl,--defsym -Wl,main=Konan_main
 clangFlags.android_x64 = -cc1 -target-cpu x86-64 -emit-obj -disable-llvm-passes -x ir -femulated-tls -mrelocation-model pic
 clangOptFlags.android_x64 = -O3 -ffunction-sections
 clangNooptFlags.android_x64 = -O1
@@ -494,7 +481,6 @@ linkerKonanFlags.mingw_x64 =-static-libgcc -static-libstdc++ \
   -Wl,-Bstatic,--whole-archive -lwinpthread -Wl,--no-whole-archive,-Bdynamic \
   -Wl,--defsym,__cxa_demangle=Konan_cxa_demangle
 linkerOptimizationFlags.mingw_x64 = -Wl,--gc-sections
-entrySelector.mingw_x64 = -Wl,--defsym,main=Konan_main
 
 # Windows i686, based on mingw-w64.
 targetToolchain.mingw_x64-mingw_x86 = msys2-mingw-w64-i686-gcc-7.4.0-clang-llvm-6.0.1
@@ -532,7 +518,6 @@ linkerKonanFlags.mingw_x86 = -static-libgcc -static-libstdc++ \
   -Wl,-Bstatic,--whole-archive -lwinpthread -Wl,--no-whole-archive,-Bdynamic \
   -Wl,--defsym,___cxa_demangle=_Konan_cxa_demangle
 linkerOptimizationFlags.mingw_x86 = -Wl,--gc-sections
-entrySelector.mingw_x86 = -Wl,--defsym,_main=_Konan_main
 
 # WebAssembly 32-bit.
 targetToolchain.macos_x64-wasm32 = target-toolchain-3-macos-wasm