WebAssembly / WebAssembly/binaryen

Dwarf tests fail on windows due to path seperators

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Description

I noticed this when enabling windows testing as part of CI for the time in #2646.

--- D:\a\binaryen\binaryen\test\passes\class_with_dwarf_noprint.bin.txt
+++ actual
@@ -180,7 +180,7 @@
                 DW_AT_name [DW_FORM_strp]	( .debug_str[0x000000e5] = "rng1")
                 DW_AT_type [DW_FORM_ref4]	(cu + 0x0037 => {0x00000037} "Random")
                 DW_AT_external [DW_FORM_flag_present]	(true)
-                DW_AT_decl_file [DW_FORM_data1]	("/tmp/emscripten_test_wasm3_2u9tontv/src.cpp")
+                DW_AT_decl_file [DW_FORM_data1]	("/tmp/emscripten_test_wasm3_2u9tontv\src.cpp")
                 DW_AT_decl_line [DW_FORM_data1]	(23)
                 DW_AT_location [DW_FORM_exprloc]	(DW_OP_addr 0x638)

May be worth fixing.. maybe not.

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Research direction

The failing fixture is test/passes/class_with_dwarf_noprint.bin.txt; start by reproducing the Dwarf test on Windows and compare the generated path with the POSIX output shown. Done means the test no longer differs only by path separators on Windows and still passes on non-Windows platforms.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, wasm
Domain
compilers, operating-systems, testing-qa
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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