foo.wasm: file format WASM .debug_info contents: 0x00000000: Compile Unit: length = 0x0000003d version = 0x0004 abbr_offset = 0x0000 addr_size = 0x04 (next unit at 0x00000041) 0x0000000b: DW_TAG_compile_unit DW_AT_producer ("clang version 7.0.0 (trunk 333296)") DW_AT_language (DW_LANG_C99) DW_AT_name ("no_main.c") DW_AT_stmt_list (0x00000000) DW_AT_comp_dir ("/emscripten/test/other/wasm_sourcemap") DW_AT_GNU_pubnames (true) DW_AT_low_pc (0x0000000000000005) DW_AT_high_pc (0x0000000000000010) 0x00000026: DW_TAG_subprogram DW_AT_low_pc (0x0000000000000005) DW_AT_high_pc (0x0000000000000010) DW_AT_name ("foo") DW_AT_decl_file ("/emscripten/test/other/wasm_sourcemap/no_main.c") DW_AT_decl_line (3) DW_AT_type (0x00000039 "int") DW_AT_external (true) 0x00000039: DW_TAG_base_type DW_AT_name ("int") DW_AT_encoding (DW_ATE_signed) DW_AT_byte_size (0x04) 0x00000040: NULL .debug_line contents: debug_line[0x00000000] Line table prologue: total_length: 0x00000038 version: 4 prologue_length: 0x00000021 min_inst_length: 1 max_ops_per_inst: 1 default_is_stmt: 1 line_base: -5 line_range: 14 opcode_base: 13 standard_opcode_lengths[DW_LNS_copy] = 0 standard_opcode_lengths[DW_LNS_advance_pc] = 1 standard_opcode_lengths[DW_LNS_advance_line] = 1 standard_opcode_lengths[DW_LNS_set_file] = 1 standard_opcode_lengths[DW_LNS_set_column] = 1 standard_opcode_lengths[DW_LNS_negate_stmt] = 0 standard_opcode_lengths[DW_LNS_set_basic_block] = 0 standard_opcode_lengths[DW_LNS_const_add_pc] = 0 standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1 standard_opcode_lengths[DW_LNS_set_prologue_end] = 0 standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0 standard_opcode_lengths[DW_LNS_set_isa] = 1 file_names[ 1]: name: "no_main.c" dir_index: 0 mod_time: 0x00000000 length: 0x00000000 Address Line Column File ISA Discriminator Flags ------------------ ------ ------ ------ --- ------------- ------------- 0x0000000000000005 4 0 1 0 0 is_stmt 0x000000000000000c 5 3 1 0 0 is_stmt prologue_end 0x0000000000000010 5 3 1 0 0 is_stmt end_sequence