1 #include <u.h>
2 #define NOPLAN9DEFINES
3 #include <libc.h>
4 
5 /*
6  * The Unix libc routines cannot be trusted to do their own locking.
7  * Sad but apparently true.
8  */
9 
10 static Lock malloclock;
11 
12 void*
13 p9malloc(ulong n)
14 {
15 	void *v;
16 	if(n == 0)
17 		n++;
18 //fprint(2, "%s %d malloc\n", argv0, getpid());
19 	lock(&malloclock);
20 	v = malloc(n);
21 	unlock(&malloclock);
22 //fprint(2, "%s %d donemalloc\n", argv0, getpid());
23 	return v;
24 }
25 
26 void
27 p9free(void *v)
28 {
29 //fprint(2, "%s %d free\n", argv0, getpid());
30 	lock(&malloclock);
31 	free(v);
32 	unlock(&malloclock);
33 //fprint(2, "%s %d donefree\n", argv0, getpid());
34 }
35 
36 void*
37 p9calloc(ulong a, ulong b)
38 {
39 	void *v;
40 
41 //fprint(2, "%s %d calloc\n", argv0, getpid());
42 	lock(&malloclock);
43 	v = calloc(a, b);
44 	unlock(&malloclock);
45 //fprint(2, "%s %d donecalloc\n", argv0, getpid());
46 	return v;
47 }
48 
49 void*
50 p9realloc(void *v, ulong n)
51 {
52 //fprint(2, "%s %d realloc\n", argv0, getpid());
53 	lock(&malloclock);
54 	v = realloc(v, n);
55 	unlock(&malloclock);
56 //fprint(2, "%s %d donerealloc\n", argv0, getpid());
57 	return v;
58 }