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Add testing
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‎test/other/wasm_sourcemap_resolve_dummy_comp_dir/foo.wasm

1.45 KB
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‎test/other/wasm_sourcemap_resolve_dummy_comp_dir/foo.wasm.dump

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foo.wasm: file format WASM
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.debug_info contents:
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0x00000000: Compile Unit: length = 0x00000045, format = DWARF32, version = 0x0004, abbr_offset = 0x0000, addr_size = 0x04 (next unit at 0x00000049)
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0x0000000b: DW_TAG_compile_unit
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DW_AT_producer ("clang version 18.0.0 (https://github.com/llvm/llvm-project 269685545e439ad050b67740533c59f965cae955)")
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DW_AT_language (DW_LANG_C11)
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DW_AT_name ("no_main.c")
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DW_AT_stmt_list (0x00000000)
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DW_AT_comp_dir ("/emscripten/test/other/wasm_sourcemap_resolve_dummy_comp_dir")
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DW_AT_low_pc (0x00000002)
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DW_AT_high_pc (0x0000000d)
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0x00000049: Compile Unit: length = 0x00000120, format = DWARF32, version = 0x0004, abbr_offset = 0x0034, addr_size = 0x04 (next unit at 0x0000016d)
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0x00000054: DW_TAG_compile_unit
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DW_AT_stmt_list (0x00000042)
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DW_AT_ranges (0x00000000
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[0x0000000e, 0x00000016)
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[0x00000017, 0x00000021)
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[0x00000022, 0x0000003c))
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DW_AT_name ("system/lib/compiler-rt/stack_ops.S")
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DW_AT_comp_dir ("/emsdk/emscripten")
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DW_AT_producer ("clang version 18.0.0 (https://github.com/llvm/llvm-project 269685545e439ad050b67740533c59f965cae955)")
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DW_AT_language (DW_LANG_Mips_Assembler)
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.debug_line contents:
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debug_line[0x00000000]
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Line table prologue:
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total_length: 0x0000003e
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format: DWARF32
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version: 4
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prologue_length: 0x00000021
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min_inst_length: 1
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max_ops_per_inst: 1
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default_is_stmt: 1
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line_base: -5
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line_range: 14
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opcode_base: 13
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standard_opcode_lengths[DW_LNS_copy] = 0
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standard_opcode_lengths[DW_LNS_advance_pc] = 1
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standard_opcode_lengths[DW_LNS_advance_line] = 1
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standard_opcode_lengths[DW_LNS_set_file] = 1
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standard_opcode_lengths[DW_LNS_set_column] = 1
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standard_opcode_lengths[DW_LNS_negate_stmt] = 0
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standard_opcode_lengths[DW_LNS_set_basic_block] = 0
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standard_opcode_lengths[DW_LNS_const_add_pc] = 0
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standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1
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standard_opcode_lengths[DW_LNS_set_prologue_end] = 0
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standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
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standard_opcode_lengths[DW_LNS_set_isa] = 1
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file_names[ 1]:
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name: "no_main.c"
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dir_index: 0
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mod_time: 0x00000000
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length: 0x00000000
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Address Line Column File ISA Discriminator OpIndex Flags
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------------------ ------ ------ ------ --- ------------- ------- -------------
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0x0000000000000005 12 3 1 0 0 0 is_stmt prologue_end
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0x000000000000000d 12 3 1 0 0 0 is_stmt end_sequence
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debug_line[0x00000042]
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Line table prologue:
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total_length: 0x000000ea
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format: DWARF32
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version: 4
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prologue_length: 0x0000003a
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min_inst_length: 1
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max_ops_per_inst: 1
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default_is_stmt: 1
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line_base: -5
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line_range: 14
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opcode_base: 13
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standard_opcode_lengths[DW_LNS_copy] = 0
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standard_opcode_lengths[DW_LNS_advance_pc] = 1
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standard_opcode_lengths[DW_LNS_advance_line] = 1
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standard_opcode_lengths[DW_LNS_set_file] = 1
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standard_opcode_lengths[DW_LNS_set_column] = 1
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standard_opcode_lengths[DW_LNS_negate_stmt] = 0
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standard_opcode_lengths[DW_LNS_set_basic_block] = 0
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standard_opcode_lengths[DW_LNS_const_add_pc] = 0
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standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1
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standard_opcode_lengths[DW_LNS_set_prologue_end] = 0
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standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
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standard_opcode_lengths[DW_LNS_set_isa] = 1
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include_directories[ 1] = "system/lib/compiler-rt"
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file_names[ 1]:
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name: "stack_ops.S"
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dir_index: 1
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mod_time: 0x00000000
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length: 0x00000000
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Address Line Column File ISA Discriminator OpIndex Flags
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------------------ ------ ------ ------ --- ------------- ------- -------------
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0x000000000000000e 18 0 1 0 0 0 is_stmt
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0x0000000000000011 19 0 1 0 0 0 is_stmt
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0x0000000000000012 19 0 1 0 0 0 is_stmt end_sequence
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0x0000000000000013 23 0 1 0 0 0 is_stmt
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0x0000000000000016 24 0 1 0 0 0 is_stmt
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0x0000000000000018 25 0 1 0 0 0 is_stmt
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0x0000000000000019 25 0 1 0 0 0 is_stmt end_sequence
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0x000000000000001f 30 0 1 0 0 0 is_stmt
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0x0000000000000021 32 0 1 0 0 0 is_stmt
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0x0000000000000023 34 0 1 0 0 0 is_stmt
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0x0000000000000024 36 0 1 0 0 0 is_stmt
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0x0000000000000026 37 0 1 0 0 0 is_stmt
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0x0000000000000027 38 0 1 0 0 0 is_stmt
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0x0000000000000029 39 0 1 0 0 0 is_stmt
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0x000000000000002b 40 0 1 0 0 0 is_stmt
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0x000000000000002d 41 0 1 0 0 0 is_stmt
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0x000000000000002e 41 0 1 0 0 0 is_stmt end_sequence
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‎test/other/wasm_sourcemap_resolve_dummy_comp_dir/no_main.c

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/*
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* Copyright 2023 The Emscripten Authors. All rights reserved.
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* Emscripten is available under two separate licenses, the MIT license and the
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* University of Illinois/NCSA Open Source License. Both these licenses can be
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* found in the LICENSE file.
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*/
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// embuilder build libcompiler_rt --force
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// emcc -nostartfiles -sASSERTIONS=0 -sSUPPORT_ERRNO=0 \
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// -sEXPORTED_FUNCTIONS=_foo -Wl,--no-entry -g -o foo.wasm no_main.c
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// llvm-dwarfdump -debug-info -debug-line --recurse-depth=0 foo.wasm \
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// >foo.wasm.dump
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int foo() { return 42; }

‎test/test_other.py

Lines changed: 15 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -9561,6 +9561,18 @@ def test_wasm_sourcemap_dead(self):
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# has only two entries
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self.assertRegexpMatches(output, r'"mappings":\s*"[A-Za-z0-9+/]+,[A-Za-z0-9+/]+"')
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def test_wasm_sourcemap_resolve_dummy_comp_dir(self):
9565+
wasm_map_cmd = [PYTHON, path_from_root('tools/wasm-sourcemap.py'),
9566+
'--dwarfdump-output',
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test_file('other/wasm_sourcemap_resolve_dummy_comp_dir/foo.wasm.dump'),
9568+
'-o', 'a.out.wasm.map',
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test_file('other/wasm_sourcemap_resolve_dummy_comp_dir/foo.wasm'),
9570+
'--basepath=' + path_from_root()]
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self.run_process(wasm_map_cmd, stdout=PIPE, stderr=PIPE)
9572+
output = read_file('a.out.wasm.map')
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# has an actual path to the source file of system library, not a dummy path (/emsdk/emscripten/**)
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self.assertIn('"system/lib/compiler-rt/stack_ops.S"', output)
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def test_wasm_sourcemap_relative_paths(self):
95659577
ensure_dir('build')
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@@ -9803,11 +9815,11 @@ def test_dwarf_system_lib(self):
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if config.FROZEN_CACHE:
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self.skipTest("test doesn't work with frozen cache")
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self.run_process([EMBUILDER, 'build', 'libemmalloc', '--force'])
9806-
libc = os.path.join(config.CACHE, 'sysroot', 'lib', 'wasm32-emscripten', 'libemmalloc.a')
9807-
self.assertExists(libc)
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system_lib = os.path.join(config.CACHE, 'sysroot', 'lib', 'wasm32-emscripten', 'libemmalloc.a')
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self.assertExists(system_lib)
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98099821
dwdump = self.run_process(
9810-
[LLVM_DWARFDUMP, libc, '-debug-info', '-debug-line', '--recurse-depth=0'],
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[LLVM_DWARFDUMP, system_lib, '-debug-info', '-debug-line', '--recurse-depth=0'],
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stdout=PIPE).stdout
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# Check that the embedded location of the source file is correct.
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self.assertIn('DW_AT_name\t("system/lib/emmalloc.c")', dwdump)

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