wamrc: Fix truncated DW_AT_producer (#3537)

Author: yamt

core/iwasm/compilation/debug/dwarf_extractor.cpp

@@ -39,6 +39,7 @@ typedef struct dwarf_extractor {
 
 #define TO_EXTRACTOR(handle) (dwarf_extractor *)(handle)
 
+static const char *compiler_name = "WAMR AoT compiler";
 static bool is_debugger_initialized;
 
 dwarf_extractor_handle_t
@@ -209,8 +210,8 @@ dwarf_gen_comp_unit_info(const AOTCompContext *comp_ctx)
 
         comp_unit = LLVMDIBuilderCreateCompileUnit(
             comp_ctx->debug_builder, LLDB_TO_LLVM_LANG_TYPE(lang_type),
-            comp_ctx->debug_file, "WAMR AoT compiler", 12, 0, NULL, 0, 1, NULL,
-            0, LLVMDWARFEmissionFull, 0, 0, 0, "/", 1, "", 0);
+            comp_ctx->debug_file, compiler_name, strlen(compiler_name), 0, NULL,
+            0, 1, NULL, 0, LLVMDWARFEmissionFull, 0, 0, 0, "/", 1, "", 0);
     }
     return comp_unit;
 }