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authorAvi Kivity <[email protected]>2010-11-14 16:47:58 +0200
committerAvi Kivity <[email protected]>2010-11-14 16:47:58 +0200
commit031871007b88a18309807c35568f135a49be60fe (patch)
treef22c30334e4d922f6cdfdcbd0c2a3f938b3baa15 /oslib-posix.c
parent338be4505b537f50e345254982e4bf127194dd0c (diff)
parentc1b0b93b06ab026ef45ae02d0ee7557741910637 (diff)
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Merge commit 'c1b0b93b06ab026ef45ae02d0ee7557741910637' into upstream-merge
* commit 'c1b0b93b06ab026ef45ae02d0ee7557741910637': Move QEMU OS dependant library functions to OS specific files target-xxx: Use fprintf_function (format checking) Conflicts: osdep.c Signed-off-by: Avi Kivity <[email protected]>
Diffstat (limited to 'oslib-posix.c')
-rw-r--r--oslib-posix.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/oslib-posix.c b/oslib-posix.c
new file mode 100644
index 000000000..bf2c673a7
--- /dev/null
+++ b/oslib-posix.c
@@ -0,0 +1,78 @@
+/*
+ * os-posix-lib.c
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ * Copyright (c) 2010 Red Hat, Inc.
+ *
+ * QEMU library functions on POSIX which are shared between QEMU and
+ * the QEMU tools.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "config-host.h"
+#include "sysemu.h"
+#include "trace.h"
+
+#if !defined(_POSIX_C_SOURCE) || defined(__sun__)
+static void *oom_check(void *ptr)
+{
+ if (ptr == NULL) {
+ fprintf(stderr, "Failed to allocate memory: %s\n", strerror(errno));
+ abort();
+ }
+ return ptr;
+}
+#endif
+
+void *qemu_memalign(size_t alignment, size_t size)
+{
+ void *ptr;
+#if defined(_POSIX_C_SOURCE) && !defined(__sun__)
+ int ret;
+ ret = posix_memalign(&ptr, alignment, size);
+ if (ret != 0) {
+ fprintf(stderr, "Failed to allocate %zu B: %s\n",
+ size, strerror(ret));
+ abort();
+ }
+#elif defined(CONFIG_BSD)
+ ptr = oom_check(valloc(size));
+#else
+ ptr = oom_check(memalign(alignment, size));
+#endif
+ trace_qemu_memalign(alignment, size, ptr);
+ return ptr;
+}
+
+/* alloc shared memory pages */
+void *qemu_vmalloc(size_t size)
+{
+#ifndef __ia64__
+ return qemu_memalign(getpagesize(), size);
+#else
+ return qemu_memalign(65536, size);
+#endif
+}
+
+void qemu_vfree(void *ptr)
+{
+ trace_qemu_vfree(ptr);
+ free(ptr);
+}