Ubuntu 18.04 and Qemu 2.10.0 "memfd" build error

[Bondey]

I've been trying to build pyrebox on Ubuntu 18.04 and i've been having this issue:

after a bit of reading, finally found the reason, that is related to a change in "mman.h" on the last version of Ubuntu.

Here are the changes to the "configure" and "util/memfd.c" files to get it working:
https://git.qemu.org/?p=qemu.git;a=commit;h=75e5b70e6b5dcc4f2219992d7cffa462aa406af0

I suppose that making this changes to the project may break qemu for the other distros, so it live this here, in case someone else has the same issue :)

[xabiugarte]

Thanks for the contribution Bondey!

I am leaving this open for reference, and I will look into this once I update to the latest stable QEMU version (from 2.11.1 -> 2.12), released in late April.

Thanks!

[adde88]

Yeah, updating the version of qemu fixes this issue.
The next error i got after i manually patched the above error was about libusb. (which was also very simple to manually patch)

Here's a copy of that error, just so you're aware of it:
error: ‘libusb_set_debug’ is deprecated: Use libusb_set_option instead

Here's a diff to fix the "libusb" error:

diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index 1b0be071cc..dc0a8fe295 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -247,7 +247,11 @@  static int usb_host_init(void)
     if (rc != 0) {
         return -1;
     }
+#if LIBUSB_API_VERSION >= 0x01000106
+    libusb_set_option(ctx, LIBUSB_OPTION_LOG_LEVEL, loglevel);
+#else
     libusb_set_debug(ctx, loglevel);
+#endif
 #ifdef CONFIG_WIN32
     /* FIXME: add support for Windows. */
 #else

But then i was met with an error about pyrebox.c complaining about missing config.h
I haven't tried patching that, yet. I'll update this if i find anything of interest.

(Not using Ubuntu, but Kali Linux with a custom Linux 4.15.17 kernel)

[xabiugarte]

PyREBox (master branch) is now on QEMU 2.12.

[xabiugarte]

Closing this issue.