Add functions for retrieving process mappings (#2371)

* add to process mapping function, and stack, heap, vdso, vvar, libc _mapping properties

* better libc string mapping detection #2370

* return all mappings instead of just the first one

* add single/multiple option to every _mapping function

* undo @Property tags

* added function doc comments

* added elf_mapping

* add get_mapping and refactor helpers to use it

* better doc

* add _location functions

* _location_from_mappings for libc and musl locations

* _location_from_mappings doc

* change comment

* fix executable -> path

* change comment

* python2.7 support

* changelog

* add address_mapping()

* get_mapping comment typo

* mention the path is an exact match

* add references to wrapped functions

* add missing 'the's, make sentences one line, fix 'exact' path description in get_mapping_location

* add private and shared fields to permissions object

* maps doctest

* get_mapping doctest

* stack_mapping doctest

* heap_mapping doctest

* improve stack_mapping and heap_mapping with address example

* vvar and vdso _mapping doctest

* libc_mapping doctest

* elf_mapping doctest

* _location_from_mappings doctest

* get_mapping_location doctest

* heap and stack _location doctest

* vdso vvar _location doctest

* improved vdso and vvar doctest

* elf_location doctest

* libc_location doctest

* address_mapping bugfix

* address_mapping doctest

* fix meow check

* fix len(mappings) check

* actually fix meow check

* why dont docs support format string?

* removed _location functions

* removed the rest of the _location related functions

* added lib_size()

* add lib_size() example

* replace f'' with correct syntax

* remove _location() from other doctests

* cleanup == in doctest

* change " to ' in doctests

---------

Co-authored-by: peace-maker <[email protected]>

Author: k4lizen

CHANGELOG.md

@@ -72,6 +72,7 @@ The table below shows which release corresponds to each branch, and what date th
 
 ## 4.14.0 (`dev`)
 
+- [#2371][2371] Add functions for retrieving process mappings
 - [#2360][2360] Add offline parameter for `search_by_hash` series function
 - [#2356][2356] Add local libc database provider for libcdb
 - [#2374][2374] libcdb.unstrip_libc: debug symbols are fetched only if not present
@@ -90,6 +91,7 @@ The table below shows which release corresponds to each branch, and what date th
 - [#2382][2382] added optional port, gdb_args and gdbserver_args parameters to gdb.debug()
 - [#2435][2435] Speed up gdbserver handshake in gdb.debug()
 
+[2371]: https://github.com/Gallopsled/pwntools/pull/2371
 [2360]: https://github.com/Gallopsled/pwntools/pull/2360
 [2356]: https://github.com/Gallopsled/pwntools/pull/2356
 [2374]: https://github.com/Gallopsled/pwntools/pull/2374