1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/tools/jprof/stub/libmalloc.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,74 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#ifndef libmalloc_h___
1.9 +#define libmalloc_h___
1.10 +
1.11 +#include <sys/types.h>
1.12 +#include <malloc.h>
1.13 +
1.14 +#ifdef __cplusplus
1.15 +extern "C" {
1.16 +#endif
1.17 +
1.18 +#include "config.h"
1.19 +
1.20 +typedef unsigned long u_long;
1.21 +
1.22 +// For me->flags
1.23 +#define JP_FIRST_AFTER_PAUSE 1
1.24 +
1.25 +// Format of a jprof log entry. This is what's written out to the
1.26 +// "jprof-log" file.
1.27 +// It's called malloc_log_entry because the history of jprof is that
1.28 +// it's a modified version of tracemalloc.
1.29 +struct malloc_log_entry {
1.30 + u_long delTime;
1.31 + u_long numpcs;
1.32 + unsigned int flags;
1.33 + int thread;
1.34 + char* pcs[MAX_STACK_CRAWL];
1.35 +};
1.36 +
1.37 +// type's
1.38 +#define malloc_log_stack 7
1.39 +
1.40 +// Format of a malloc map entry; after this struct is nameLen+1 bytes of
1.41 +// name data.
1.42 +struct malloc_map_entry {
1.43 + u_long nameLen;
1.44 + u_long address; // base address
1.45 +};
1.46 +
1.47 +// A method that can be called if you want to programmatically control
1.48 +// the malloc logging. Note that you must link with the library to do
1.49 +// this (or use dlsym after dynamically loading the library...)
1.50 +extern u_long SetMallocFlags(u_long flags);
1.51 +
1.52 +// The environment variable LIBMALLOC_LOG should be set to an integer
1.53 +// value whose meaning is as follows:
1.54 +
1.55 +// Enable logging
1.56 +#define LIBMALLOC_LOG 0x1
1.57 +
1.58 +// Don't free memory when set
1.59 +#define LIBMALLOC_NOFREE 0x2
1.60 +
1.61 +// Check heap for corruption after every malloc/free/realloc
1.62 +#define LIBMALLOC_CHECK 0x4
1.63 +
1.64 +// Log reference count calls (addref/release)
1.65 +#define LIBMALLOC_LOG_RC 0x8
1.66 +
1.67 +// Log a stack trace
1.68 +#define LIBMALLOC_LOG_TRACE 0x10
1.69 +
1.70 +void __log_addref(void* p, int oldrc, int newrc);
1.71 +void __log_release(void* p, int oldrc, int newrc);
1.72 +
1.73 +#ifdef __cplusplus
1.74 +} /* end of extern "C" */
1.75 +#endif
1.76 +
1.77 +#endif /* libmalloc_h___ */
