On Tue, Sep 22, 2026 at 3:59 PM Oleg Tolmatcev <[email protected]> wrote:
>
> On Windows, opening a source file in text mode translates CRLF to LF.
> md5_stream therefore records a checksum that does not match the file
> contents. Open source files in binary mode before calculating CodeView
> checksums.
>
> gcc/ChangeLog:
>
> PR debug/119940
> * dwarf2codeview.cc (codeview_start_source_file): Open the source file
> in binary mode.
Ok.
> ---
> gcc/dwarf2codeview.cc | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/dwarf2codeview.cc b/gcc/dwarf2codeview.cc
> index ada04079fd..67e3799104 100644
> --- a/gcc/dwarf2codeview.cc
> +++ b/gcc/dwarf2codeview.cc
> @@ -1746,7 +1746,7 @@ codeview_start_source_file (const char *filename)
> sf->string_offset = string_offset;
> sf->filename = xstrdup (filename);
>
> - f = fopen (filename, "r");
> + f = fopen (filename, "rb");
> if (!f)
> internal_error ("could not open %s for reading", filename);
>
> --
> 2.55.0.windows.5
>
