Added heap operations (#140)
* Added support for using different malloc algorithms and implemented
ptmalloc commands
- Added support for the mp_ structure from glibc
- Fixed the bug when the base of [heap] is not sbrk_base (occurs
when bss is very large).
- Added an interface for interacting with ptmalloc heaps
* Added fastbins, unsortedbins, smallbins, largebins
- Implemented the bin functions both in the ptmalloc interface in
the heap/ directory and the commands function
- Completed the bins command which prints all the commands
- Added option to bin commands `verbose` specifies the users desire
to print empty bins - linked lists with out any nodes from malloc
- Changed bin representation to OrderedDict
* remove old bins command
* Ptmalloc bug fixes
- switched constants.ptmalloc from using pwndbg.typeinfo to a gdb
api function to prevent bugs when libc-dbg isn't installed
- Other minor changes
* Added some functionality for when libc-dbg is not present
- Added checks for finding symbols
* Ran isort on pwndbg
* Made few changes based on feedback from pull requests
- Cleaned up spaces_table
- Syntax changes
* Moved formatting code away from logic
- Moved format_bin from pwndbg.heap.ptmalloc to pwndbg.commands.heap
* Fixed bug in spaces_table for 32 bit archs
* Changed malloc_chunk command to display FASTBIN instead of PREV_INUSE
- Fixed local isort version problems
* Small bug fixes, tweaks, and added features list.
- Changed pwndbg.chain.format to use the offset for the very last
index in the chain.
- Fixed bug with ptmalloc's main_arena property.
- Added images to cap and links to FEATURES.md.
- Changed bin commands to print hex instead of base 10.
* Modified docstring to match other docstrings in pwndbg
* Memoize properties, fix merge conflicst, fix constants
- Moved the macros from the constants directory into the Heap
class, left the constants there.
- Switched from lazy loading to the memoize events.
* Fixed double spaces after images from a previous pull request.
* Added more examples to FEATURES.md for heaps
* Fix typos in FEATURES.md
pull/146/head
blendin
9 years ago
committed by
Zach Riggle
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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import platform
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import gdb
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import pwndbg.arch
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# Heap flags
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PREV_INUSE = 1
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IS_MMAPPED = 2
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NON_MAIN_ARENA = 4
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SIZE_BITS = ( PREV_INUSE | IS_MMAPPED | NON_MAIN_ARENA )
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NBINS = 128
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NSMALLBINS = 64
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