Re: [PULL v7 000/151] Meson-based build system

[Howard Spoelstra <hsp.cat7@gmail.com>]

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On Wed, Aug 19, 2020 at 11:32 PM Paolo Bonzini <pbonzini@redhat.com> wrote:

> The following changes since commit
> d0ed6a69d399ae193959225cdeaa9382746c91cc:
>
>   Update version for v5.1.0 release (2020-08-11 17:07:03 +0100)
>
> are available in the Git repository at:
>
>   https://gitlab.com/bonzini/qemu.git tags/for-upstream
>
> for you to fetch changes up to 2eddb3c65821dce76433d5da6f3e6419349d1b77:
>
>
> Hi,

I attempted to cross compile Qemu for Windows from the meson branch today
using a Fedora 32 VM and using MSYS2 .

In both cases I compiled using:
 ./configure --cross-prefix=x86_64-w64-mingw32- --target-list=ppc-softmmu
--enable-gtk --enable-sdl

For the builds to run on Windows I normally copy the pc-bios folder and the
required dlls (from \msys64\mingw64\bin for the MSYS2 build and from
/usr/x86_64-w64-mingw32/sys-root/mingw/bin for the Fedora based build).
This has always worked in the past.

As noticed earlier in discussion with Paolo, with MSYS2 there appears to be
a difference in how grep works on Linux and Windows. Using grep 3.1 as
provided by MSYS2, the file config-all-devices.mak file stays empty.

On Fedora the compilation process completed successfully. However, the
binary crashes. This is the backtrace I could get:

(gdb) attach 11528
Attaching to process 11528
[New Thread 11528.0x218]
[New Thread 11528.0x3380]
[New Thread 11528.0xf80]
Reading symbols from C:\qemu-debugging\gdb.exe...(no debugging symbols
found)...
done.
0x00007ffb9ef0f8b1 in ntdll!DbgBreakPoint ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
(gdb) thread apply all bt full

Thread 3 (Thread 11528.0xf80):
#0  0x00007ffb9ef0f8b1 in ntdll!DbgBreakPoint ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#1  0x00007ffb9ef3c90e in ntdll!DbgUiRemoteBreakin ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#2  0x00007ffb9dbe6fd4 in KERNEL32!BaseThreadInitThunk ()
   from C:\WINDOWS\System32\kernel32.dll
No symbol table info available.
#3  0x00007ffb9eebcec1 in ntdll!RtlUserThreadStart ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 11528.0x3380):
#0  0x00007ffb9ef0c914 in ntdll!ZwWaitForMultipleObjects ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#1  0x00007ffb9c658910 in WaitForMultipleObjectsEx ()
   from C:\WINDOWS\System32\KernelBase.dll
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#2  0x00007ffb9c65880e in WaitForMultipleObjects ()
   from C:\WINDOWS\System32\KernelBase.dll
No symbol table info available.
#3  0x00000000004291a5 in ?? ()
No symbol table info available.
#4  0x00007ffb9dbe6fd4 in KERNEL32!BaseThreadInitThunk ()
   from C:\WINDOWS\System32\kernel32.dll
No symbol table info available.
#5  0x00007ffb9eebcec1 in ntdll!RtlUserThreadStart ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#6  0x0000000000000000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 11528.0x218):
#0  0x00007ffb9ef0c914 in ntdll!ZwWaitForMultipleObjects ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#1  0x00007ffb9c658910 in WaitForMultipleObjectsEx ()
   from C:\WINDOWS\System32\KernelBase.dll
No symbol table info available.
#2  0x00007ffb9c65880e in WaitForMultipleObjects ()
---Type <return> to continue, or q <return> to quit---
   from C:\WINDOWS\System32\KernelBase.dll
No symbol table info available.
#3  0x0000000000483e9c in ?? ()
No symbol table info available.
#4  0x0000000000551049 in ?? ()
No symbol table info available.
#5  0x0000000000550498 in ?? ()
No symbol table info available.
#6  0x00000000005504fd in ?? ()
No symbol table info available.
#7  0x0000000000551b63 in ?? ()
No symbol table info available.
#8  0x00000000005489d7 in ?? ()
No symbol table info available.
#9  0x0000000000549421 in ?? ()
No symbol table info available.
#10 0x0000000000545e0b in ?? ()
No symbol table info available.
#11 0x000000000054a922 in ?? ()
No symbol table info available.
#12 0x0000000000545e0b in ?? ()
No symbol table info available.
#13 0x000000000054a94d in ?? ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#14 0x00000000004017e5 in ?? ()
No symbol table info available.
#15 0x0000000000401472 in ?? ()
No symbol table info available.
#16 0x000000000040117c in ?? ()
No symbol table info available.
#17 0x00007ffb9dbe6fd4 in KERNEL32!BaseThreadInitThunk ()
   from C:\WINDOWS\System32\kernel32.dll
No symbol table info available.
#18 0x00007ffb9eebcec1 in ntdll!RtlUserThreadStart ()
   from C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#19 0x0000000000000000 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb)

Best,
Howard

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