add ckb-c-stdlib as a submodule (#12)

.github/workflows/ci.yml

@@ -9,7 +9,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
     - uses: leafo/gh-actions-lua@v9
       with:
         luaVersion: "5.4"

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "include/ckb-c-stdlib"]
+	path = include/ckb-c-stdlib
+	url = https://github.com/nervosnetwork/ckb-c-stdlib.git

Makefile

@@ -5,7 +5,8 @@ CC := $(TARGET)-gcc
 LD := $(TARGET)-gcc
 OBJCOPY := $(TARGET)-objcopy
 
-CFLAGS := -fPIC -O3 -fno-builtin -nostdinc -nostdlib -nostartfiles -fvisibility=hidden -fdata-sections -ffunction-sections -I lualib -I include/ckb-c-stdlib -I include/ckb-c-stdlib/libc -I include/ckb-c-stdlib/molecule -Wall -Werror -Wno-nonnull -Wno-nonnull-compare -Wno-unused-function -g
+# See comments in lualib/Makefile for why __ISO_C_VISIBLE=1999 is needed
+CFLAGS := -D__ISO_C_VISIBLE=1999 -fPIC -O3 -fno-builtin -nostdinc -nostdlib -nostartfiles -fvisibility=hidden -fdata-sections -ffunction-sections -I lualib -I lualib/c-stdlib -I include/ckb-c-stdlib -I include/ckb-c-stdlib/libc -I include/ckb-c-stdlib/molecule -Wall -Werror -Wno-nonnull -Wno-nonnull-compare -Wno-unused-function -Wno-error=maybe-uninitialized -g
 
 LDFLAGS := -nostdlib -nostartfiles -fno-builtin -Wl,-static -fdata-sections -ffunction-sections -Wl,--gc-sections
 
@@ -27,13 +28,13 @@ lualib/liblua.a:
 	make -C lualib liblua.a
 
 build/dylibtest: tests/test_cases/dylibtest.c
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(shell $(CC) --print-search-dirs | sed -n '/install:/p' | sed 's/install:\s*//g')libgcc.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< lualib/liblua.a $(shell $(CC) --print-search-dirs | sed -n '/install:/p' | sed 's/install:\s*//g')libgcc.a 
 
 build/dylibexample: examples/dylib.c
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(shell $(CC) --print-search-dirs | sed -n '/install:/p' | sed 's/install:\s*//g')libgcc.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< lualib/liblua.a $(shell $(CC) --print-search-dirs | sed -n '/install:/p' | sed 's/install:\s*//g')libgcc.a
 
 build/spawnexample: examples/spawn.c
-	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(shell $(CC) --print-search-dirs | sed -n '/install:/p' | sed 's/install:\s*//g')libgcc.a
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< lualib/liblua.a $(shell $(CC) --print-search-dirs | sed -n '/install:/p' | sed 's/install:\s*//g')libgcc.a
 
 build/lua-loader.o: lua-loader/lua-loader.c
 	$(CC) -c $(CFLAGS) -o $@ $<

examples/spawn.c

@@ -6,12 +6,18 @@
 int main() {
   const char *argv[] = {"-e", "local m = arg[2] .. arg[3]; ckb.set_content(m)",
                         "hello", "world"};
-  int8_t exit_code = -1;
   uint8_t content[80] = {};
   uint64_t content_length = 80;
+  int8_t exit_code = -1;
+
+  spawn_args_t spgs = {
+      .memory_limit = 8,
+      .exit_code = &exit_code,
+      .content = content,
+      .content_length = &content_length,
+  };
 
-  int success =
-      ckb_spawn(8, 1, 3, 0, 4, argv, &exit_code, &content[0], &content_length);
+  int success = ckb_spawn(1, 3, 0, 4, argv, &spgs);
   if (success != 0) {
     return 1;
   }