1 files changed, 98 insertions, 0 deletions
diff --git a/qemu-malloc.c b/qemu-malloc.c
new file mode 100644
index 0000000000..b9b38514ac
--- /dev/null
+++ b/qemu-malloc.c
@@ -0,0 +1,98 @@
+/*
+ * malloc-like functions for system emulation.
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ *
+ * 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 "qemu-common.h"
+#include "trace.h"
+#include <stdlib.h>
+
+void qemu_free(void *ptr)
+{
+    trace_qemu_free(ptr);
+    free(ptr);
+}
+
+static int allow_zero_malloc(void)
+{
+#if defined(CONFIG_ZERO_MALLOC)
+    return 1;
+#else
+    return 0;
+#endif
+}
+
+void *qemu_malloc(size_t size)
+{
+    void *ptr;
+    if (!size && !allow_zero_malloc()) {
+        abort();
+    }
+    ptr = qemu_oom_check(malloc(size ? size : 1));
+    trace_qemu_malloc(size, ptr);
+    return ptr;
+}
+
+void *qemu_realloc(void *ptr, size_t size)
+{
+    void *newptr;
+    if (!size && !allow_zero_malloc()) {
+        abort();
+    }
+    newptr = qemu_oom_check(realloc(ptr, size ? size : 1));
+    trace_qemu_realloc(ptr, size, newptr);
+    return newptr;
+}
+
+void *qemu_mallocz(size_t size)
+{
+    void *ptr;
+    if (!size && !allow_zero_malloc()) {
+        abort();
+    }
+    ptr = qemu_oom_check(calloc(1, size ? size : 1));
+    trace_qemu_malloc(size, ptr);
+    return ptr;
+}
+
+char *qemu_strdup(const char *str)
+{
+    char *ptr;
+    size_t len = strlen(str);
+    ptr = qemu_malloc(len + 1);
+    memcpy(ptr, str, len + 1);
+    return ptr;
+}
+
+char *qemu_strndup(const char *str, size_t size)
+{
+    const char *end = memchr(str, 0, size);
+    char *new;
+
+    if (end) {
+        size = end - str;
+    }
+
+    new = qemu_malloc(size + 1);
+    new[size] = 0;
+
+    return memcpy(new, str, size);
+}