* THE SOFTWARE.
*/
#include "qemu-common.h"
+#include "trace.h"
+#include <stdlib.h>
-void *get_mmap_addr(unsigned long size)
+void qemu_free(void *ptr)
{
- return NULL;
+ trace_qemu_free(ptr);
+ free(ptr);
}
-void qemu_free(void *ptr)
+static int allow_zero_malloc(void)
{
- free(ptr);
+#if defined(CONFIG_ZERO_MALLOC)
+ return 1;
+#else
+ return 0;
+#endif
}
void *qemu_malloc(size_t size)
{
- return malloc(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)
{
- return realloc(ptr, 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;
- ptr = qemu_malloc(size);
- if (!ptr)
- return NULL;
- memset(ptr, 0, size);
+ if (!size && !allow_zero_malloc()) {
+ abort();
+ }
+ ptr = qemu_oom_check(calloc(1, size ? size : 1));
+ trace_qemu_malloc(size, ptr);
return ptr;
}
char *ptr;
size_t len = strlen(str);
ptr = qemu_malloc(len + 1);
- if (!ptr)
- return NULL;
- pstrcpy(ptr, len, str);
+ 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);
+}