qemu: musl support (patches from Alpine)

srcpkgs/qemu/patches/0006-linux-user-signal.c-define-__SIGRTMIN-MAX-for-non-GN.patch

@@ -0,0 +1,36 @@
+From 3e231fa7a2dc66e2ef06ac44f4f719b08fc0c67e Mon Sep 17 00:00:00 2001
+From: Natanael Copa <ncopa@alpinelinux.org>
+Date: Tue, 29 Apr 2014 15:51:31 +0200
+Subject: [PATCH 6/6] linux-user/signal.c: define __SIGRTMIN/MAX for non-GNU
+ platforms
+
+The __SIGRTMIN and __SIGRTMAX are glibc internals and are not available
+on all platforms, so we define those if they are missing.
+
+This is needed for musl libc.
+
+Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
+---
+ linux-user/signal.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git linux-user/signal.c linux-user/signal.c
+index 7d6246f..6019dbb 100644
+--- linux-user/signal.c
++++ linux-user/signal.c
+@@ -32,6 +32,13 @@
+
+ //#define DEBUG_SIGNAL
+
++#ifndef __SIGRTMIN
++#define __SIGRTMIN 32
++#endif
++#ifndef __SIGRTMAX
++#define __SIGRTMAX (NSIG-1)
++#endif
++
+ static struct target_sigaltstack target_sigaltstack_used = {
+     .ss_sp = 0,
+     .ss_size = 0,
+--
+1.9.2

srcpkgs/qemu/patches/musl-F_SHLCK-and-F_EXLCK.patch

@@ -0,0 +1,20 @@
+This patch was not upstreamed to qemu as those should probably be
+defined in musl libc.
+
+diff --git linux-user/syscall.c linux-user/syscall.c
+index c8989b6..00ed747 100644
+--- linux-user/syscall.c
++++ linux-user/syscall.c
+@@ -114,6 +114,13 @@ int __clone2(int (*fn)(void *), void *child_stack_base,
+
+ #include "qemu.h"
+
++#ifndef F_SHLCK
++#define F_SHLCK 8
++#endif
++#ifndef F_EXLCK
++#define F_EXLCK 4
++#endif
++
+ #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
+     CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)

srcpkgs/qemu/patches/musl-fix-sigevent-and-sigval_t.patch

@@ -0,0 +1,36 @@
+--- linux-user/syscall.c.orig    2015-04-10 07:10:06.305662505 +0000
++++ linux-user/syscall.c 2015-04-10 07:36:53.801871968 +0000
+@@ -5020,9 +5020,20 @@
+     return 0;
+ }
+
+-static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
++struct host_sigevent {
++    union sigval sigev_value;
++    int sigev_signo;
++    int sigev_notify;
++    union {
++       int _pad[64-sizeof(int) * 2 + sizeof(union sigval)];
++       int _tid;
++    } _sigev_un;
++};
++
++static inline abi_long target_to_host_sigevent(struct sigevent *sevp,
+                                                abi_ulong target_addr)
+ {
++    struct host_sigevent *host_sevp = (struct host_sigevent *) sevp;
+     struct target_sigevent *target_sevp;
+
+     if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
+--- linux-user/syscall_defs.h.orig   2015-04-10 07:41:35.410380624 +0000
++++ linux-user/syscall_defs.h    2015-04-10 07:42:30.401391516 +0000
+@@ -2589,7 +2589,7 @@
+         int32_t _tid;
+
+         struct {
+-            void (*_function)(sigval_t);
++            void (*_function)(union sigval);
+             void *_attribute;
+         } _sigev_thread;
+     } _sigev_un;
+

srcpkgs/qemu/template

@@ -1,7 +1,7 @@
 # Template file for 'qemu'
 pkgname=qemu
 version=2.3.0
-revision=5
+revision=6
 short_desc="Open Source Processor Emulator"
 maintainer="Juan RP <xtraeme@voidlinux.eu>"
 homepage="http://qemu.org"