Re: [Libunwind-devel] using libunwind on Windows

[Martin Hundebøll]

Hi Vincet,

Thanks for taking the time to consider this. Guess I'll just disable out 
libunwind in our mingw build.

// Martin

On 2016-03-16 07:35, Vincent Torri wrote:
> Hello
>
> unfortunately, this patch can not apply anymore, due to internal changes
> in libunwind.
>
> also, i've seen some use of the long type (in unwind.h for example),
> which is always 32 bits long on Windows, even on Windows 64 bit. I don't
> know if it is a problem or not
>
> Also, now, in src/ there are some OS specific files (about shared mem
> and ELF). There are shared mem API on Windows, but i don't know what i
> would do with ELF stuff...
>
> I have added some infra in the autotools for Windows, but with no
> windows source code, it's a bit useless...
>
> Vincent Torri
>
>
> On Tue, Mar 15, 2016 at 9:44 PM, Martin Hundebøll <address@hidden
> <mailto:address@hidden>> wrote:
>
>     Hi Vincent / libunwind dev
>
>     I came across this patch and I propose it being included in upstream
>     libunwind:
>     
> https://github.com/Alexpux/MINGW-packages/blob/master/mingw-w64-libunwind-svn/0001-libunwind-add-support-for-mingw-w64.patch
>
>     Thanks,
>     Martin
>
>
>     On 2015-12-13 09:29, Vincent Torri wrote:
>
>         Hello
>
>         I am writing a small valgrind-like program on Windows, to detect
>         memleak and some errors that valgrind's memcheck identifies.
>
>         Currently, for the backtrace, I use the Windows API if compiled with
>         vc++, and libbfd if compiled with gcc (mingw-w64). libbfd works well
>         (i get file, function ad line number that I want), but the
>         licence is
>         a problem (GPL v3).
>
>         libdwarf seems big, libunwind seems smaller, and according to the
>         documentation, libunwind can manage DWARF format
>
>         If I'm not mistaken, the GNU linker provides debugging
>         informations in
>         the DWARF format on Windows.
>
>         I have 2 questions:
>
>         1) Do you think that libunwind could indeed provide backtrace from
>         programs/libraries linked with the GNU linker on Windows ?
>
>         2) if yes, as i am quite interested to have libunwind on Windows,
>         compiling it with MSYS/mingw-w64 (not vc++), where should I
>         start, and
>         which files should I look first ?
>
>         Note that I would like to provide patches upstream, not to fork
>         libunwind.
>
>         thank you
>
>         Vincent Torri
>
>
>
>
>     --
>     Kind Regards,
>     Martin Hundebøll
>     Kildeagervej 166
>     8361 Hasselager
>
>     +45 25 56 24 38
>     address@hidden <mailto:address@hidden>
>
>     _______________________________________________
>     Libunwind-devel mailing list
>     address@hidden <mailto:address@hidden>
>     https://lists.nongnu.org/mailman/listinfo/libunwind-devel