tools/jprof/stub/libmalloc.h

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* This Source Code Form is subject to the terms of the Mozilla Public
     2  * License, v. 2.0. If a copy of the MPL was not distributed with this
     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     5 #ifndef libmalloc_h___
     6 #define libmalloc_h___
     8 #include <sys/types.h>
     9 #include <malloc.h>
    11 #ifdef __cplusplus
    12 extern "C" {
    13 #endif
    15 #include "config.h"
    17 typedef unsigned long u_long;
    19 // For me->flags
    20 #define JP_FIRST_AFTER_PAUSE 1
    22 // Format of a jprof log entry. This is what's written out to the
    23 // "jprof-log" file.
    24 // It's called malloc_log_entry because the history of jprof is that
    25 // it's a modified version of tracemalloc.
    26 struct malloc_log_entry {
    27   u_long delTime;
    28   u_long numpcs;
    29   unsigned int flags;
    30   int thread;
    31   char* pcs[MAX_STACK_CRAWL];
    32 };
    34 // type's
    35 #define malloc_log_stack   7
    37 // Format of a malloc map entry; after this struct is nameLen+1 bytes of
    38 // name data.
    39 struct malloc_map_entry {
    40   u_long nameLen;
    41   u_long address;		// base address
    42 };
    44 // A method that can be called if you want to programmatically control
    45 // the malloc logging. Note that you must link with the library to do
    46 // this (or use dlsym after dynamically loading the library...)
    47 extern u_long SetMallocFlags(u_long flags);
    49 // The environment variable LIBMALLOC_LOG should be set to an integer
    50 // value whose meaning is as follows:
    52 // Enable logging
    53 #define LIBMALLOC_LOG    0x1
    55 // Don't free memory when set
    56 #define LIBMALLOC_NOFREE 0x2
    58 // Check heap for corruption after every malloc/free/realloc
    59 #define LIBMALLOC_CHECK  0x4
    61 // Log reference count calls (addref/release)
    62 #define LIBMALLOC_LOG_RC 0x8
    64 // Log a stack trace
    65 #define LIBMALLOC_LOG_TRACE 0x10
    67 void __log_addref(void* p, int oldrc, int newrc);
    68 void __log_release(void* p, int oldrc, int newrc);
    70 #ifdef __cplusplus
    71 } /* end of extern "C" */
    72 #endif
    74 #endif /* libmalloc_h___ */

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