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authorErik Andersen <andersen@codepoet.org>2000-05-14 04:16:35 +0000
committerErik Andersen <andersen@codepoet.org>2000-05-14 04:16:35 +0000
commit64bc6412188b141c010ac3b8e813b837dd991e80 (patch)
treeffa12b79ea4b13191754f54b872eb1a4f9e3a04b /libc/stdlib/malloc/alloc.c
Initial revision
Diffstat (limited to 'libc/stdlib/malloc/alloc.c')
-rw-r--r--libc/stdlib/malloc/alloc.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/libc/stdlib/malloc/alloc.c b/libc/stdlib/malloc/alloc.c
new file mode 100644
index 000000000..b92cb7c69
--- /dev/null
+++ b/libc/stdlib/malloc/alloc.c
@@ -0,0 +1,82 @@
+#include <unistd.h>
+#include <sys/mman.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef L_calloc_dbg
+
+void *
+calloc_dbg(size_t num, size_t size, char * function, char * file, int line)
+{
+ void * ptr;
+ fprintf(stderr, "calloc of %d bytes at %s @%s:%d = ", num*size, function, file, line);
+ ptr = calloc(num,size);
+ fprtinf(stderr, "%p\n", ptr);
+ return ptr;
+}
+
+#endif
+
+#ifdef L_malloc_dbg
+
+void *
+malloc_dbg(size_t len, char * function, char * file, int line)
+{
+ void * result;
+ fprintf(stderr, "malloc of %d bytes at %s @%s:%d = ", len, function, file, line);
+ result = malloc(len);
+ fprintf(stderr, "%p\n", result);
+ return result;
+}
+
+#endif
+
+#ifdef L_free_dbg
+
+void
+free_dbg(void * ptr, char * function, char * file, int line)
+{
+ fprintf(stderr, "free of %p at %s @%s:%d\n", ptr, function, file, line);
+ free(ptr);
+}
+
+#endif
+
+
+#ifdef L_calloc
+
+void *
+calloc(size_t num, size_t size)
+{
+ void * ptr = malloc(num*size);
+ if (ptr)
+ memset(ptr, 0, num*size);
+ return ptr;
+}
+
+#endif
+
+#ifdef L_malloc
+
+void *
+malloc(size_t len)
+{
+ void * result = mmap((void *)0, len, PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_ANONYMOUS, 0, 0);
+ if (result == (void*)-1)
+ return 0;
+
+ return result;
+}
+
+#endif
+
+#ifdef L_free
+
+void
+free(void * ptr)
+{
+ munmap(ptr, 0);
+}
+
+#endif