build: haiky system build fix

[David CARLIER]

>From 25adbdcdc17ef51a41759f16576901338ed8a469 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Thu, 25 Jun 2020 19:32:42 +0000
Subject: [PATCH] build: haiku system build fix

Most of missing features resides in the bsd library.
Also defining constant equivalence.

Signed-off-by: David Carlier <devnexen@gmail.com>
---
 configure            |  4 ++--
 include/qemu/bswap.h |  2 ++
 os-posix.c           |  4 ++++
 util/compatfd.c      |  2 ++
 util/drm.c           |  2 ++
 util/main-loop.c     |  3 +++
 util/oslib-posix.c   | 20 ++++++++++++++++++++
 util/qemu-openpty.c  |  2 +-
 8 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index ba88fd1824..3732ad4e35 100755
--- a/configure
+++ b/configure
@@ -901,8 +901,8 @@ SunOS)
 ;;
 Haiku)
   haiku="yes"
-  QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS $QEMU_CFLAGS"
-  LIBS="-lposix_error_mapper -lnetwork $LIBS"
+  QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
+  LIBS="-lposix_error_mapper -lnetwork -lbsd $LIBS"
 ;;
 Linux)
   audio_drv_list="try-pa oss"
diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h
index 2a9f3fe783..1d3e4c24e4 100644
--- a/include/qemu/bswap.h
+++ b/include/qemu/bswap.h
@@ -8,6 +8,8 @@
 # include <machine/bswap.h>
 #elif defined(__FreeBSD__)
 # include <sys/endian.h>
+#elif defined(__HAIKU__)
+# include <endian.h>
 #elif defined(CONFIG_BYTESWAP_H)
 # include <byteswap.h>

diff --git a/os-posix.c b/os-posix.c
index 3cd52e1e70..ca07b7702d 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -42,6 +42,8 @@
 #include <sys/prctl.h>
 #endif

+#include <sys/mman.h>
+
 /*
  * Must set all three of these at once.
  * Legal combinations are              unset   by name   by uid
@@ -339,10 +341,12 @@ int os_mlock(void)
 {
     int ret = 0;

+#if !defined(__HAIKU__)
     ret = mlockall(MCL_CURRENT | MCL_FUTURE);
     if (ret < 0) {
         error_report("mlockall: %s", strerror(errno));
     }

+#endif
     return ret;
 }
diff --git a/util/compatfd.c b/util/compatfd.c
index c296f55d14..ee47dd8089 100644
--- a/util/compatfd.c
+++ b/util/compatfd.c
@@ -16,7 +16,9 @@
 #include "qemu/osdep.h"
 #include "qemu/thread.h"

+#if defined(CONFIG_SIGNALFD)
 #include <sys/syscall.h>
+#endif

 struct sigfd_compat_info
 {
diff --git a/util/drm.c b/util/drm.c
index a23ff24538..8540578c09 100644
--- a/util/drm.c
+++ b/util/drm.c
@@ -38,9 +38,11 @@ int qemu_drm_rendernode_open(const char *rendernode)

     fd = -1;
     while ((e = readdir(dir))) {
+#if !defined(__HAIKU__)
         if (e->d_type != DT_CHR) {
             continue;
         }
+#endif

         if (strncmp(e->d_name, "renderD", 7)) {
             continue;
diff --git a/util/main-loop.c b/util/main-loop.c
index eda63fe4e0..1ce3081ced 100644
--- a/util/main-loop.c
+++ b/util/main-loop.c
@@ -85,6 +85,9 @@ static int qemu_signal_init(Error **errp)
      * by sigwait() in the signal thread. Otherwise, the cpu thread will
      * not catch it reliably.
      */
+#ifndef SIGIO
+#define SIGIO SIGPOLL
+#endif
     sigemptyset(&set);
     sigaddset(&set, SIG_IPI);
     sigaddset(&set, SIGIO);
diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index 39ddc77c85..a18d90a68a 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -38,7 +38,12 @@
 #include "qemu/sockets.h"
 #include "qemu/thread.h"
 #include <libgen.h>
+#if !defined(__HAIKU__)
 #include <sys/signal.h>
+#else
+#include <kernel/image.h>
+#include <signal.h>
+#endif
 #include "qemu/cutils.h"

 #ifdef CONFIG_LINUX
@@ -390,6 +395,21 @@ void qemu_init_exec_dir(const char *argv0)
             }
         }
     }
+#elif defined(__HAIKU__)
+    {
+        image_info ii;
+        int32_t c = 0;
+
+    *buf = '\0';
+    while (get_next_image_info(0, &c, &ii) == B_OK) {
+            if (ii.type == B_APP_IMAGE) {
+                strncpy(buf, ii.name, sizeof(buf));
+            buf[sizeof(buf) - 1] = '\0';
+        p = buf;
+                break;
+            }
+        }
+    }
 #endif
     /* If we don't have any way of figuring out the actual executable
        location then try argv[0].  */
diff --git a/util/qemu-openpty.c b/util/qemu-openpty.c
index 2e8b43bdf5..c29fc2cbf9 100644
--- a/util/qemu-openpty.c
+++ b/util/qemu-openpty.c
@@ -35,7 +35,7 @@
 #include "qemu/osdep.h"
 #include "qemu-common.h"

-#if defined(__GLIBC__)
+#if defined(__GLIBC__) || defined(__HAIKU__)
 # include <pty.h>
 #elif defined CONFIG_BSD
 # include <termios.h>
-- 
2.26.0