Enhance build configuration to support optional gc

There will be two sets of binaries for iwasm and wamrc.
One set without a suffix indicates there is no GC support.
Another set with the suffixes "-gc" and "-gc-eh" includes GC support.
Users cannot disable GC through command line options; they need to
choose the appropriate set to use.

Author: lum1n0us

.github/workflows/build_wamrc.yml

@@ -37,6 +37,14 @@ permissions:
 jobs:
   build:
     runs-on: ${{ inputs.runner }}
+    strategy:
+      matrix:
+        include:
+          - build_options: ""
+            suffix: ""
+          - build_options: "-DWAMR_BUILD_GC=1"
+            suffix: "-gc"
+
     permissions:
       contents: write # for uploading release artifacts
 
@@ -58,7 +66,7 @@ jobs:
 
       - name: generate wamrc binary release
         run: |
-          cmake -S . -B build
+          cmake -S . -B build ${{ matrix.build_options }}
           cmake --build build --config Release --parallel 4
         working-directory: wamr-compiler
 
@@ -89,17 +97,17 @@ jobs:
       - name: Compress the binary on Windows
         if: inputs.runner == 'windows-latest' && inputs.release
         run: |
-          tar -czf wamrc-${{ inputs.ver_num }}-${{ inputs.runner }}.tar.gz wamrc.exe
-          Compress-Archive -Path wamrc.exe -DestinationPath wamrc-${{ inputs.ver_num }}-${{ inputs.runner }}.zip
-          mv wamrc-${{ inputs.ver_num }}-${{ inputs.runner }}.* ../
+          tar -czf wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.runner }}.tar.gz wamrc.exe
+          Compress-Archive -Path wamrc.exe -DestinationPath wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.runner }}.zip
+          mv wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.runner }}.* ../
         working-directory: wamr-compiler/build/Release
 
       - name: compress the binary on non-Windows
         if: inputs.runner != 'windows-latest' && inputs.release
         run: |
           # Follow the symlink to the actual binary file
-          tar --dereference -czf wamrc-${{ inputs.ver_num }}-${{ inputs.runner }}.tar.gz wamrc
-          zip wamrc-${{ inputs.ver_num }}-${{ inputs.runner }}.zip wamrc
+          tar --dereference -czf wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.runner }}.tar.gz wamrc
+          zip wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.runner }}.zip wamrc
         working-directory: wamr-compiler/build
 
       - name: upload release tar.gz
@@ -109,8 +117,8 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ inputs.upload_url }}
-          asset_path: wamr-compiler/build/wamrc-${{ inputs.ver_num }}-${{ inputs.runner }}.tar.gz
-          asset_name: wamrc-${{ inputs.ver_num }}-${{ inputs.arch }}-${{ inputs.runner }}.tar.gz
+          asset_path: wamr-compiler/build/wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.runner }}.tar.gz
+          asset_name: wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.arch }}-${{ inputs.runner }}.tar.gz
           asset_content_type: application/x-gzip
 
       - name: upload release zip
@@ -120,6 +128,6 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ inputs.upload_url }}
-          asset_path: wamr-compiler/build/wamrc-${{ inputs.ver_num }}-${{ inputs.runner }}.zip
-          asset_name: wamrc-${{ inputs.ver_num }}-${{ inputs.arch }}-${{ inputs.runner }}.zip
+          asset_path: wamr-compiler/build/wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.runner }}.zip
+          asset_name: wamrc${{ matrix.suffix }}-${{ inputs.ver_num }}-${{ inputs.arch }}-${{ inputs.runner }}.zip
           asset_content_type: application/zip

core/iwasm/compilation/aot_compiler.c

@@ -3953,23 +3953,15 @@ aot_compile_func(AOTCompContext *comp_ctx, uint32 func_index)
 #if WASM_ENABLE_REF_TYPES != 0 || WASM_ENABLE_GC != 0
 unsupport_ref_types:
     aot_set_last_error("reference type instruction was found, "
-                       "try removing --disable-ref-types option "
-                       "or adding --enable-gc option");
-    return false;
-#endif
-
-#if WASM_ENABLE_GC != 0
-unsupport_gc:
-    aot_set_last_error("GC instruction was found, "
-                       "try adding --enable-gc option");
+                       "try removing --disable-ref-types option ");
     return false;
 #endif
 
 #if WASM_ENABLE_REF_TYPES != 0 || WASM_ENABLE_GC != 0
 unsupport_gc_and_ref_types:
     aot_set_last_error(
         "reference type or gc instruction was found, try removing "
-        "--disable-ref-types option or adding --enable-gc option");
+        "--disable-ref-types option");
     return false;
 #endif
 

samples/multi-module/CMakeLists.txt

@@ -46,15 +46,14 @@ set(WAMR_BUILD_INTERP 1)
 if (NOT DEFINED WAMR_BUILD_AOT)
   set(WAMR_BUILD_AOT 0)
 endif ()
+
 if (NOT DEFINED WAMR_BUILD_JIT)
   set(WAMR_BUILD_JIT 0)
 endif ()
 if (NOT DEFINED WAMR_BUILD_DUMP_CALL_STACK)
   set(WAMR_BUILD_DUMP_CALL_STACK 0)
 endif ()
-if (NOT DEFINED WAMR_BUILD_GC)
-  set(WAMR_BUILD_GC 0)
-endif ()
+set(WAMR_BUILD_GC 0)
 set(WAMR_BUILD_SIMD 1)
 set(WAMR_BUILD_REF_TYPES 1)
 set(WAMR_BUILD_LIBC_BUILTIN 1)
@@ -160,45 +159,30 @@ ExternalProject_Add(WASM_MODULE
 
 ################ WASM MODULES TO AOT
 if (WAMR_BUILD_AOT EQUAL 1)
-  set(WAMR_COMPILER_DIR ${CMAKE_CURRENT_LIST_DIR}/../../wamr-compiler/build)
-  message(CHECK_START "Detecting WAMR_COMPILER at ${WAMR_COMPILER_DIR}")
-  find_file(WAMR_COMPILER
-    wamrc
-    PATHS "${CMAKE_CURRENT_LIST_DIR}/../../wamr-compiler/build"
-    NO_DEFAULT_PATH
-    NO_CMAKE_FIND_ROOT_PATH
+  set(WAMR_COMPILER_DIR ${CMAKE_CURRENT_LIST_DIR}/../../wamr-compiler)
+
+  ExternalProject_Add(wamrc_local
+    SOURCE_DIR   ${WAMR_ROOT_DIR}/wamr-compiler
+    BUILD_ALWAYS TRUE
+    UPDATE_COMMAND ""
+    PATCH_COMMAND ""
+    CONFIGURE_COMMAND ${CMAKE_COMMAND} -S ${WAMR_ROOT_DIR}/wamr-compiler -B build --install-prefix ${CMAKE_CURRENT_BINARY_DIR}
+    BUILD_COMMAND     ${CMAKE_COMMAND} --build build
+    INSTALL_COMMAND   ${CMAKE_COMMAND} --install build
   )
-  if(WAMR_COMPILER)
-    message(CHECK_PASS "found")
-  else()
-    message(CHECK_FAIL "not found")
-  endif()
-  if((NOT EXISTS ${WAMR_COMPILER}) )
-    message(FATAL_ERROR "Please build wamrc under the path=${WAMR_ROOT_DIR}/wamr-compiler/ ")
-  else()
-    message(STATUS "WAMR_COMPILER is ${WAMR_COMPILER}")
-  endif()
 
   if (WAMR_BUILD_DUMP_CALL_STACK EQUAL 1)
     list(APPEND WAMR_AOT_COMPILE_OPTIONS "--enable-dump-call-stack")
   endif ()
-  if (WAMR_BUILD_GC EQUAL 1)
-    list(APPEND WAMR_AOT_COMPILE_OPTIONS "--enable-gc")
-  endif ()
 
   add_custom_target(
     wasm_to_aot
     ALL
-    DEPENDS
-    WASM_MODULE ${WAMR_COMPILER}
-    COMMAND
-    ${WAMR_COMPILER} ${WAMR_AOT_COMPILE_OPTIONS} -o mA.aot ./mA.wasm
-    COMMAND
-    ${WAMR_COMPILER} ${WAMR_AOT_COMPILE_OPTIONS} -o mB.aot ./mB.wasm
-    COMMAND
-    ${WAMR_COMPILER} ${WAMR_AOT_COMPILE_OPTIONS} -o mC.aot ./mC.wasm
-    WORKING_DIRECTORY
-    ${CMAKE_BINARY_DIR}
+    DEPENDS WASM_MODULE wamrc_local
+    COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/wamrc ${WAMR_AOT_COMPILE_OPTIONS} -o mA.aot ./mA.wasm
+    COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/wamrc ${WAMR_AOT_COMPILE_OPTIONS} -o mB.aot ./mB.wasm
+    COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/wamrc ${WAMR_AOT_COMPILE_OPTIONS} -o mC.aot ./mC.wasm
+    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
   )
 endif()
 

samples/multi-module/README.md

@@ -1,20 +1,23 @@
 # WAMR MULTI-MODUEL SAMPLE
-**WAMR supports *multi-module* in both *interpreter* mode and *aot* mode.**
+
+**WAMR supports _multi-module_ in both _interpreter_ mode and _aot_ mode.**
 
 Multi-modules will determine the running mode based on the type of the main module.
 
+## Interpreter mode
 
-``` shell
-$ mkdir build
+```bash
+$ cmake -S . -B build
+$ cmake --build
 $ cd build
-$ cmake ..
-$ make
-$ # It will build multi_module runtime and 
-$ # wasm file under the ./build .
-$ # If you have built wamrc,
-$ # aot file will also generate.
 $ ./multi_module mC.wasm
-$ ...
-$ ./multi_module mC.aot
-$ ...
+```
+
+## Aot mode
 
+```bash
+$ cmake -S . -B build -DWAMR_BUILD_AOT=1
+$ cmake --build
+$ cd build
+$ ./multi_module mC.aot
+```

samples/wasm-c-api/CMakeLists.txt

@@ -54,12 +54,16 @@ if (NOT DEFINED WAMR_BUILD_TARGET)
   endif ()
 endif ()
 
+# Only one of WAMR_BUILD_INTERP and WAMR_BUILD_AOT is enabled 
 if(NOT DEFINED WAMR_BUILD_INTERP)
   set(WAMR_BUILD_INTERP 1)
 endif()
 
 if(NOT DEFINED WAMR_BUILD_AOT)
   set(WAMR_BUILD_AOT 0)
+else()
+  set(WAMR_BUILD_AOT 1)
+  set(WAMR_BUILD_INTERP 0)
 endif()
 
 if(NOT DEFINED WAMR_BUILD_JIT)
@@ -71,11 +75,7 @@ set(WAMR_BUILD_LIBC_WASI 0)
 set(WAMR_BUILD_MULTI_MODULE 1)
 set(WAMR_BUILD_DUMP_CALL_STACK 1)
 set(WAMR_BUILD_REF_TYPES 1)
-
-# If not defined WAMR_BUILD_GC, set it to 0
-if(NOT DEFINED WAMRC_BUILD_WITH_GC)
-  set(WAMRC_BUILD_WITH_GC 0)
-endif()
+set(WAMR_BUILD_GC 0)
 
 if(NOT DEFINED WAMR_BUILD_FAST_INTERP)
   set(WAMR_BUILD_FAST_INTERP 1)
@@ -129,18 +129,17 @@ if (${WAT2WASM_VERSION} VERSION_LESS 1.0.26)
   set(WAT2WASM_FLAGS "--enable-reference-types")
 endif ()
 
-if(${WAMR_BUILD_AOT} EQUAL 1 AND ${WAMR_BUILD_INTERP} EQUAL 0)
-  ## locate wamrc
-  find_program(WAMRC
-    wamrc
-    PATHS ${WAMR_ROOT_DIR}/wamr-compiler/build/
+if(${WAMR_BUILD_AOT} EQUAL 1)
+  include(ExternalProject)
+  ExternalProject_Add(wamrc_local
+    SOURCE_DIR   ${WAMR_ROOT_DIR}/wamr-compiler
+    BUILD_ALWAYS TRUE
+    UPDATE_COMMAND ""
+    PATCH_COMMAND ""
+    CONFIGURE_COMMAND ${CMAKE_COMMAND} -S ${WAMR_ROOT_DIR}/wamr-compiler -B build --install-prefix ${CMAKE_CURRENT_BINARY_DIR}
+    BUILD_COMMAND     ${CMAKE_COMMAND} --build build
+    INSTALL_COMMAND   ${CMAKE_COMMAND} --install build
   )
-
-  if(NOT WAMRC)
-    message(SEND_ERROR "can not find wamrc.  refer to \
-        https://github.com/bytecodealliance/wasm-micro-runtime#build-wamrc-aot-compiler"
-    )
-  endif()
 endif()
 include (${SHARED_DIR}/utils/uncommon/shared_uncommon.cmake)
 
@@ -183,15 +182,11 @@ foreach(EX ${EXAMPLES})
 
   # generate .aot file
   if(${WAMR_BUILD_AOT} EQUAL 1)
-    if(${WAMRC_BUILD_WITH_GC} EQUAL 1)
-      set(WAMRC_GC_FLAGS "--enable-gc")
-    else()
-      set(WAMRC_GC_FLAGS "")
-    endif()
+    
     add_custom_target(${EX}_AOT
-      COMMAND ${WAMRC} ${WAMRC_GC_FLAGS} -o ${PROJECT_BINARY_DIR}/${EX}.aot
+      COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/wamrc -o ${PROJECT_BINARY_DIR}/${EX}.aot
         ${PROJECT_BINARY_DIR}/${EX}.wasm
-      DEPENDS ${EX}_WASM
+      DEPENDS ${EX}_WASM wamrc_local
       BYPRODUCTS ${PROJECT_BINARY_DIR}/${EX}.aot
       VERBATIM
       COMMENT "generate a aot file ${PROJECT_BINARY_DIR}/${EX}.aot"

tests/requirement-engineering/gc-aot/runtest.py

@@ -1162,7 +1162,6 @@ def compile_wasm_to_aot(wasm_tempfile, aot_tempfile, runner, opts, r, output='de
         cmd.append("--enable-multi-thread")
 
     if opts.gc:
-        cmd.append("--enable-gc")
         cmd.append("--enable-tail-call")
 
     if output == 'object':

tests/unit/aot-stack-frame/wasm-apps/CMakeLists.txt

@@ -5,7 +5,7 @@ cmake_minimum_required(VERSION 3.14)
 
 project(wasm-apps-aot-stack-frame)
 
-set (WAMRC_OPTION --enable-dump-call-stack --bounds-checks=1 --enable-gc)
+set (WAMRC_OPTION --enable-dump-call-stack --bounds-checks=1)
 
 if (WAMR_BUILD_TARGET STREQUAL "X86_32")
       set (WAMRC_OPTION ${WAMRC_OPTION} --target=i386)

tests/wamr-test-suites/spec-test-script/runtest.py

@@ -1157,7 +1157,6 @@ def compile_wasm_to_aot(wasm_tempfile, aot_tempfile, runner, opts, r, output = '
         cmd.append("--enable-multi-thread")
 
     if opts.gc:
-        cmd.append("--enable-gc")
         cmd.append("--enable-tail-call")
 
     if opts.extended_const:

tests/wamr-test-suites/test_wamr.sh

@@ -835,7 +835,7 @@ function build_iwasm_with_cfg()
     fi
 }
 
-function build_wamrc()
+function build_wamrc_with_cfg()
 {
     if [[ "${TARGET_LIST[*]}" =~ "${TARGET}" ]]; then
         echo "suppose wamrc is already built"
@@ -852,10 +852,7 @@ function build_wamrc()
         && ./${BUILD_LLVM_SH} \
         && if [ -d build ]; then rm -r build/*; else mkdir build; fi \
         && cd build \
-        && cmake .. \
-             -DCOLLECT_CODE_COVERAGE=${COLLECT_CODE_COVERAGE} \
-             -DWAMR_BUILD_SHRUNK_MEMORY=0 \
-             -DWAMR_BUILD_EXTENDED_CONST_EXPR=${ENABLE_EXTENDED_CONST_EXPR} \
+        && cmake $* .. \
         && make -j 4
 }
 
@@ -1073,6 +1070,18 @@ function trigger()
         EXTRA_COMPILE_FLAGS+=" -DWAMR_BUILD_SANITIZER=$WAMR_BUILD_SANITIZER"
     fi
 
+    local WAMRC_BUILD_FLAGS=""
+    WAMRC_BUILD_FLAGS+=" -DCOLLECT_CODE_COVERAGE=${COLLECT_CODE_COVERAGE}"
+    WAMRC_BUILD_FLAGS+=" -DWAMR_BUILD_SHRUNK_MEMORY=0"
+
+    if [[ ${ENABLE_GC} == 1 ]]; then
+        WAMRC_BUILD_FLAGS+=" -DWAMR_BUILD_GC=1"
+    fi
+
+    if [[ ${ENABLE_EXTENDED_CONST_EXPR} == 1 ]]; then
+        WAMRC_BUILD_FLAGS+=" -DWAMR_BUILD_EXTENDED_CONST_EXPR=1"
+    fi
+
     # Make sure we're using the builtin WASI libc implementation
     # if we're running the wasi certification tests.
     if [[ $TEST_CASE_ARR ]]; then
@@ -1148,7 +1157,7 @@ function trigger()
                     build_iwasm_with_cfg $BUILD_FLAGS
                 fi
                 if [ -z "${WAMRC_CMD}" ]; then
-                   build_wamrc
+                   build_wamrc_with_cfg $WAMRC_BUILD_FLAGS
                    WAMRC_CMD=${WAMRC_CMD_DEFAULT}
                 fi
                 for suite in "${TEST_CASE_ARR[@]}"; do

wamr-compiler/CMakeLists.txt

@@ -55,7 +55,17 @@ add_definitions(-DWASM_ENABLE_MODULE_INST_CONTEXT=1)
 add_definitions(-DWASM_ENABLE_MEMORY64=1)
 add_definitions(-DWASM_ENABLE_EXTENDED_CONST_EXPR=1)
 
-add_definitions(-DWASM_ENABLE_GC=1)
+# Sync with iwasm in config_common.cmake.  Turn off GC by default.
+# can be turned on by setting WAMR_BUILD_GC to 1
+if (NOT DEFINED WAMR_BUILD_GC)
+  message ("-- GC disabled")
+  set(WAMR_BUILD_GC 0)
+  add_definitions(-DWASM_ENABLE_GC=0)
+else ()
+  message ("-- GC enabled")
+  set(WAMR_BUILD_GC 1)
+  add_definitions(-DWASM_ENABLE_GC=1)
+endif ()
 
 set (WAMR_BUILD_STRINGREF 1)
 set (WAMR_STRINGREF_IMPL_SOURCE "STUB")
@@ -285,7 +295,11 @@ include (${SHARED_DIR}/utils/shared_utils.cmake)
 include (${SHARED_DIR}/utils/uncommon/shared_uncommon.cmake)
 include (${IWASM_DIR}/libraries/thread-mgr/thread_mgr.cmake)
 include (${IWASM_DIR}/common/iwasm_common.cmake)
-include (${IWASM_DIR}/common/gc/iwasm_gc.cmake)
+if (WAMR_BUILD_GC EQUAL 1)
+  include (${IWASM_DIR}/common/gc/iwasm_gc.cmake)
+else ()
+  message (STATUS "WAMR GC is disabled")
+endif ()
 include (${IWASM_DIR}/interpreter/iwasm_interp.cmake)
 include (${IWASM_DIR}/aot/iwasm_aot.cmake)
 include (${IWASM_DIR}/compilation/iwasm_compl.cmake)