)]}'
{
  "log": [
    {
      "commit": "c4d1fecc105063e68a5090a6900b63d1b9a24287",
      "tree": "93dad687b245a981d3c47ede05b43345b86202fe",
      "parents": [
        "9dfaa63a1c0d1b8e75dd9d7077a8103a19821fa9"
      ],
      "author": {
        "name": "Elliott Hughes",
        "email": "enh@google.com",
        "time": "Tue Aug 28 14:15:04 2012 -0700"
      },
      "committer": {
        "name": "Elliott Hughes",
        "email": "enh@google.com",
        "time": "Wed Aug 29 12:08:13 2012 -0700"
      },
      "message": "Clean up warnings in the malloc_debug_* files.\n\nAlso clean up cpplint.py-detected lint.\n\nChange-Id: Ia18e89c4c6878764f8d7ed34b8247e7a8d8fe88b\n"
    },
    {
      "commit": "e1dd3c287ba836281de0197670018bd9bbfbd62b",
      "tree": "a5138cb21c8de6be4ea4be61e44f95fb8bcb776e",
      "parents": [
        "7d2e24eb167b6257f7935c7bd2023a708704ca1a"
      ],
      "author": {
        "name": "Iliyan Malchev",
        "email": "malchev@google.com",
        "time": "Tue May 29 14:22:42 2012 -0700"
      },
      "committer": {
        "name": "Iliyan Malchev",
        "email": "malchev@google.com",
        "time": "Fri Jun 01 15:54:34 2012 -0700"
      },
      "message": "bionic: import heaptracker as chk_malloc\n\nThis patch is a rewrite of libc.debug.malloc \u003d 10 (chk_malloc).  It provides\nthe same features as the original (poison freed memory, detect heap overruns\nand underruns), except that it provides more debugging information whenever it\ndetects a problem.\n\nIn addition to the original features, the new chk_malloc() implementation\ndetects multiple frees within a given range of the last N allocations, N being\nconfigurable via the system property libc.debug.malloc.backlog.\n\nFinally, this patch keeps track of all outstanding memory allocations.  On\nprogram exit, we walk that list and report each outstanding allocation.\n\n(There is support (not enabled) for a scanner thread periodically walks over\nthe list of outstanding allocations as well as the backlog of recently-freed\nallocations, checking for heap-usage errors.)\n\nFeature overview:\n\n  1) memory leaks\n  2) multiple frees\n  3) use after free\n  4) overrun\n\nImplementation:\n\n-- for each allocation, there is a:\n  1) stack trace at the time the allocation is made\n  2) if the memory is freed, there is also a stack trace at the point\n  3) a front and rear guard (fence)\n  4) the stack traces are kept together with the allocation\n\n-- the following lists and maintained\n\n  1) all outstanding memory allocations\n  3) a backlog of allocations what are freed; when you call free(), instead of\n     actually freed, the allocation is moved to this backlog;\n  4) when the backlog of allocations gets full, the oldest entry gets evicted\n     from it; at that point, the allocation is checked for overruns or\n     use-after-free errors, and then actually freed.\n  5) when the program exits, the list of outstanding allocations and the\n     backlog are inspected for errors, then freed;\n\nTo use this, set the following system properties before running the process or\nprocesses you want to inspect:\n\nlibc.malloc.debug.backlog # defaults to 100\nlibc.malloc.debug 10\n\nWhen a problem is detected, you will see the following on logcat for a multiple\nfree:\n\nE/libc    ( 7233): +++ ALLOCATION 0x404b9278 SIZE 10 BYTES MULTIPLY FREED!\nE/libc    ( 7233): +++ ALLOCATION 0x404b9278 SIZE 10 ALLOCATED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c658  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d80  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 4009647c  /system/bin/malloctest\nE/libc    ( 7233):      #04  pc 00016f24  /system/lib/libc.so\nE/libc    ( 7233): +++ ALLOCATION 0x404b9278 SIZE 10 FIRST FREED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c7d2  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d94  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 40096490  /system/bin/malloctest\nE/libc    ( 7233):      #04  pc 00016f24  /system/lib/libc.so\nE/libc    ( 7233): +++ ALLOCATION 0x404b9278 SIZE 10 NOW BEING FREED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c6ac  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d94  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 400964a0  /system/bin/malloctest\nE/libc    ( 7233):      #04  pc 00016f24  /system/lib/libc.so\n\nThe following for a heap overrun and underrun:\n\nE/libc    ( 7233): +++ REAR GUARD MISMATCH [10, 11)\nE/libc    ( 7233): +++ ALLOCATION 0x404b9198 SIZE 10 HAS A CORRUPTED REAR GUARD\nE/libc    ( 7233): +++ ALLOCATION 0x404b9198 SIZE 10 ALLOCATED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c658  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d80  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 40096438  /system/bin/malloctest\nE/libc    ( 7233):      #04  pc 00016f24  /system/lib/libc.so\nE/libc    ( 7233): +++ ALLOCATION 0x404b9198 SIZE 10 FREED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c7d2  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d94  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 40096462  /system/bin/malloctest\nE/libc    ( 7233):      #04  pc 00016f24  /system/lib/libc.so\nE/libc    ( 7233): +++ ALLOCATION 0x404b9358 SIZE 10 HAS A CORRUPTED FRONT GUARD\nE/libc    ( 7233): +++ ALLOCATION 0x404b9358 SIZE 10 ALLOCATED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c658  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d80  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 400964ba  /system/bin/malloctest\nE/libc    ( 7233):      #04  pc 00016f24  /system/lib/libc.so\nE/libc    ( 7233): +++ ALLOCATION 0x404b9358 SIZE 10 FREED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c7d2  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d94  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 400964e4  /system/bin/malloctest\nE/libc    ( 7233):      #04  pc 00016f24  /system/lib/libc.so\n\nThe following for a memory leak:\n\nE/libc    ( 7233): +++ THERE ARE 1 LEAKED ALLOCATIONS\nE/libc    ( 7233): +++ DELETING 4096 BYTES OF LEAKED MEMORY AT 0x404b95e8 (1 REMAINING)\nE/libc    ( 7233): +++ ALLOCATION 0x404b95e8 SIZE 4096 ALLOCATED HERE:\nE/libc    ( 7233): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\nE/libc    ( 7233):      #00  pc 0000c35a  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #01  pc 0000c658  /system/lib/libc_malloc_debug_leak.so\nE/libc    ( 7233):      #02  pc 00016d80  /system/lib/libc.so\nE/libc    ( 7233):      #03  pc 0001bc94  /system/lib/libc.so\nE/libc    ( 7233):      #04  pc 0001edf6  /system/lib/libc.so\nE/libc    ( 7233):      #05  pc 0001b80a  /system/lib/libc.so\nE/libc    ( 7233):      #06  pc 0001c086  /system/lib/libc.so\nE/libc    ( 7233):      #07  pc 40096402  /system/bin/malloctest\nE/libc    ( 7233):      #08  pc 00016f24  /system/lib/libc.so\n\nChange-Id: Ic440e9d05a01e2ea86b25e8998714e88bc2d16e0\nSigned-off-by: Iliyan Malchev \u003cmalchev@google.com\u003e\n"
    }
  ]
}