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authorEric Andersen <andersen@codepoet.org>2000-10-09 20:06:30 +0000
committerEric Andersen <andersen@codepoet.org>2000-10-09 20:06:30 +0000
commitc1fe19d4c1db610692365472a90f4661e48449c1 (patch)
treed0b0219ffca3c4c4256f55c4aea4513e43d6aecd /libc/stdlib/malloc-simple/alloc.c
parent9efafb8bbc7408b04643dcd53825d971577b4d9d (diff)
Bug ugly formatting update
Diffstat (limited to 'libc/stdlib/malloc-simple/alloc.c')
-rw-r--r--libc/stdlib/malloc-simple/alloc.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/libc/stdlib/malloc-simple/alloc.c b/libc/stdlib/malloc-simple/alloc.c
new file mode 100644
index 000000000..cf4835c97
--- /dev/null
+++ b/libc/stdlib/malloc-simple/alloc.c
@@ -0,0 +1,106 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.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);
+ fprintf(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);
+ MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+
+ if (result == (void *) -1)
+ return 0;
+
+ return result;
+}
+
+#endif
+
+#ifdef L_free
+
+void free(void *ptr)
+{
+ munmap(ptr, 0);
+}
+
+#endif
+
+#ifdef L_realloc
+
+void *realloc(void *ptr, size_t size)
+{
+ void *newptr = NULL;
+
+ if (size > 0) {
+ newptr = malloc(size);
+ if (newptr && ptr)
+ memcpy(newptr, ptr, size);
+ }
+ if (ptr)
+ free(ptr);
+ return newptr;
+}
+
+#endif