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nixpkgs/pkgs/applications/virtualization/qemu/default.nix
Tim Jäger 0c1c3d2b99 qemu: fix HDA recording latency
Very long latency occurs for audio inputs when simulating an Intel HDA device.

Patch courtesy of Volker Rümeling.
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg03336.html
2017-08-16 09:48:49 +02:00

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{ stdenv, fetchurl, fetchpatch, python2, zlib, pkgconfig, glib
, ncurses, perl, pixman, vde2, alsaLib, texinfo, flex
, bison, lzo, snappy, libaio, gnutls, nettle, curl
, makeWrapper
, attr, libcap, libcap_ng
, CoreServices, Cocoa, rez, setfile
, numaSupport ? stdenv.isLinux, numactl
, seccompSupport ? stdenv.isLinux, libseccomp
, pulseSupport ? !stdenv.isDarwin, libpulseaudio
, sdlSupport ? !stdenv.isDarwin, SDL
, vncSupport ? true, libjpeg, libpng
, spiceSupport ? !stdenv.isDarwin, spice, spice_protocol
, usbredirSupport ? spiceSupport, usbredir
, xenSupport ? false, xen
, x86Only ? false
, nixosTestRunner ? false
}:
with stdenv.lib;
let
version = "2.9.0";
audio = optionalString (hasSuffix "linux" stdenv.system) "alsa,"
+ optionalString pulseSupport "pa,"
+ optionalString sdlSupport "sdl,";
in
stdenv.mkDerivation rec {
name = "qemu-"
+ stdenv.lib.optionalString xenSupport "xen-"
+ stdenv.lib.optionalString x86Only "x86-only-"
+ stdenv.lib.optionalString nixosTestRunner "for-vm-tests-"
+ version;
src = fetchurl {
url = "http://wiki.qemu.org/download/qemu-${version}.tar.bz2";
sha256 = "053c7ivp3li7cdagzkp2wdc5myybzjf826r6qfkcf0xvn4bv5gq0";
};
buildInputs =
[ python2 zlib pkgconfig glib ncurses perl pixman
vde2 texinfo flex bison makeWrapper lzo snappy
gnutls nettle curl
]
++ optionals stdenv.isDarwin [ CoreServices Cocoa rez setfile ]
++ optionals seccompSupport [ libseccomp ]
++ optionals numaSupport [ numactl ]
++ optionals pulseSupport [ libpulseaudio ]
++ optionals sdlSupport [ SDL ]
++ optionals vncSupport [ libjpeg libpng ]
++ optionals spiceSupport [ spice_protocol spice ]
++ optionals usbredirSupport [ usbredir ]
++ optionals stdenv.isLinux [ alsaLib libaio libcap_ng libcap attr ]
++ optionals xenSupport [ xen ];
enableParallelBuilding = true;
patches = [ ./no-etc-install.patch ]
++ optional nixosTestRunner ./force-uid0-on-9p.patch
++ optional pulseSupport ./fix-hda-recording.patch;
hardeningDisable = [ "stackprotector" ];
preConfigure = ''
unset CPP # intereferes with dependency calculation
'';
configureFlags =
[ "--smbd=smbd" # use `smbd' from $PATH
"--audio-drv-list=${audio}"
"--sysconfdir=/etc"
"--localstatedir=/var"
]
++ optional numaSupport "--enable-numa"
++ optional seccompSupport "--enable-seccomp"
++ optional spiceSupport "--enable-spice"
++ optional usbredirSupport "--enable-usb-redir"
++ optional x86Only "--target-list=i386-softmmu,x86_64-softmmu"
++ optional stdenv.isDarwin "--enable-cocoa"
++ optional stdenv.isLinux "--enable-linux-aio"
++ optional xenSupport "--enable-xen";
postFixup =
''
for exe in $out/bin/qemu-system-* ; do
paxmark m $exe
done
'';
postInstall =
''
# Add a qemu-kvm wrapper for compatibility/convenience.
p="$out/bin/qemu-system-${if stdenv.system == "x86_64-linux" then "x86_64" else "i386"}"
if [ -e "$p" ]; then
makeWrapper "$p" $out/bin/qemu-kvm --add-flags "\$([ -e /dev/kvm ] && echo -enable-kvm)"
fi
'';
meta = with stdenv.lib; {
homepage = http://www.qemu.org/;
description = "A generic and open source machine emulator and virtualizer";
license = licenses.gpl2Plus;
maintainers = with maintainers; [ viric eelco ];
platforms = platforms.linux ++ platforms.darwin;
};
}