Radare2: 5.4.0 – Rainy Smell

CyberPunk Latest Releases

08/19/2021 8:48 pm

Release Notes

Version: 5.4.0
Previous: 5.3.1
Commits: 258
Contributors: 20

Highlights

Add the vector35 arm64 for analysis, esil and disasm and r2 can be built without capstone
Improved integration to use r2ghidra analysis and disassemble mainly tested for avr, v850 and arm64
Fix emulation of several x86 and arm64 instructions, including an scripted way to import official arm64 instruction descriptions
Bring back the cmd.pin to instrument the esil emulation when a specific address is hit
Small steps towards Projects with improved management for version control
Improved visual and panels with better interactions and fixed glitches

Shell

500 more commands are now listed in the recursive help command: ?*
Backslash is now completely gone. Please use ‘:’ or the original ‘=!’ instead.
Implement @@== foreach word iterator operator
Add mwf command to write local files into remote targets
wv1,2,4,8 accept many space-separated numbers now

New /c subcommands are now available for searching crypto stuff
To find references to the UDS CAN table use /ru
Find PGP and RSA encrypted keys in memory with /cg
Search for common hashing and crypto constant tables in /ck
Add /ab to find backward jumps (mostly loops) and handle ^C
Initial implementation of spp, snp, /bp and /pp to find next/prev preludes

Analysis

Improved VAX analysis, disassembly and analysis
Esil function emulation is performed properly spotting many more xrefs and reduces falses positives.
Default aa, aaa and aaaa analysis commands are now faster and produce better results
Analysis plugins can be now used as a replacement for the asm ones only for disassembling. Next release will start removing unnecessary asm plugins, reducing compile times and build size.
The new ‘wan’ command nops the partial instructions left, making binary patching much simpler
Faster exit times for ^D, making interactions more fluent and reducing CI times
Initial implementatil of ESIL macros and start reducing the instruction set
Better x86.pseudo and varsub for strings

Debugger

Signal handling is now displayed in human form and C with better stop reasons
Use DRX APIs to handle breakpoint recoils only on x86-64

Signatures

Support FLIRT v5 file format compression
Fix bug in zaf creating zignspace
Expand r_sign API and major refactor

New platforms:

The build system and CI packaging has been improved quite a lot, simplifying the release process and testing.

serenityOS: unix based OS that looks like w95, with its own kernel, libraries and userland. Debugger support in r2 is not yet available for SerenityOS, but APIs are there, so it’s just a matter of getting it
Vinix: Kernel completely written in V, able to run bash, gcc or python, is now able to run r2!
Vax/netbsd: after discovering SIMH, a Vax emulator, took me few minutes to run NetBSD and run r2 in there, no debugger support yet.
WebAssembly is now build and published in the CI
Tic80: For now it’s just identifying and parsing the headers and placing the flags

Windows

Building on windows is as easy as running: preconfigure, configure and make
That will detect VS, Python, Git and setup the PATH and install Meson and Ninja for you.
Resolve Windows APIs at runtime to fix build with mingw and improve backward compat

More details

Authors

Alex Bender Apkunpacker Azox Davide Pizzolotto Dennis Goodlett Enshin Andrey Ilya Trukhanov L\u221a\xb0szl\u221a\u2265 Vask\u221a\u2265 Maijin Murphy Paul I RHL120 Royos90 Sylvain Pelissier aemmitt-ns gogo hot3eed lasek0 pancake pancake

Changes

anal

Properly stringify the RAnalOP.type field
Implement aaff command and improve aaf? help message
- Extend afj command to handle all jump table parameter options
Implement ‘afs*’ command to export function signature info in r2 commands
Fix afsj, taking signature args instead of fcnargs in json
Initial import of the arm64v35 disassembler and analysis plugins
Optimize infinite loop on non-quantum computers
Avoid assert on avr’s null cmpreg test
Finish the tolowering of anal.noNULL
Fix aef and aaef to actually find xrefs at least

asm

Fix #18813 – Cannot assemble cmp w26, 0 in arm64
Fix #18876 – Check imm bounds for some instructions in the x86.nz assembler
Add pushf/popf instructions to x86.nz
Use RAnalBind in RAsm to reuse RAnalPlugins to disassemble
Update ARM64 arm.sdb.txt opcode descriptions from documentation
Update the VAX disassembler from binutils

assembler

Fix #18872 – New command ‘wan’ to write and nop affected instructions

bin

Fix #18783 – Support ELFs with phnum > 0xFFFF
Allow RBinPlugins to use RBinFile at check()
Initial support for the TIC-80 Fantasy Computer cartridges
Replace SDB with HtPU in RBin.filter_name()
Put archinfo.{minopsz,maxopsz,align} in the output of i
Implement ELF relocs for VAX

build

Add portability support for Vinix
Add meson support for the anal.arm.v35 plugin
Add preconfigure/configure/make batch scripts for Windows
Initial import of ./preconfigure for packaging purposes
Improve the macOS packaging scripts
Import radare2-win-installer files into dist/windows
Fix meson build and proper use of cgen
Fix system() on arm64 macOS targets (#18877)
Initial support for capstone-less compilations
Build and publish the ZIP with the WASI bins
Add initial support for building r2 on WASI

Version the artifacts

cons

Dont check out of bounds last chars
Honor faster ^D on interactive execution path
Fix arrow handling after fixing mouse clicking glitches

core

Honor bool in io.va, scr.interactive, scr.prompt and cfg.fortunes
Optimize and improve r_name_filter calls
Add &w command to wait and run for queued commands
Implement &: for queue commands
Implement @@== foreach word iterator operator

debug

Fix the windows debugger and make it more stable
Add tests for the improved signal handling messages
Change the way wait events are handled in the unix-debug backend
Add ‘sigstr’ to the ‘di’ output for verboser stop reasons
Add RSignal.toHuman() and improve RDebugReason.toString()
Use DRX APIs to handle breakpoint recoils only on x86-64

disasm

Support arch.* namings for the parse plugins
Better x86.pseudo and varsub for strings
Fix r_str_ansi_len() causing unaligned ‘unaligned’ words
Improve invalid address and string parameter issues in emu.str and pd comments
Improve x86.parse for asm.pseudo

esil

Fix emulation for AARCH64 ldr,str,stp,ldp instructions
Fix #18860 – mul and imul for *dx operands and 64 bit widths
Bring back pins to esil land
Fix POPF POPFD POPFQ not increasing stack pointer
Add wide and math instr esil for dalvik, pac esil for arm64
Initial implementatil of ESIL macros

Add mwf command to write local files into remote targets

io.plugin.lseek -> .seek for portability (wasi related) (#18840)

panels

Add xX key descriptions in the help message

print

Improve the pdc output to allow recompilation
Initial implementation of the pdo esil2c output

projects

Dont save projects when no project is used
Exclude files of nested rvc repos from repo_files()
Use r_sys_whoami as the author name for r_vc_commit
rvc add r_vc_find_rp
Rework r_vc_checkout and fix some mem leaks
Rework the rvc_commit functions
Take advantage of prj.vc.type and merge rvc & git
Fix r_vc_commit and other functions
Major rvc api refactor to use sdb

rvc

Fix memory leak and infinite loop in r_vc_find_rp

search

Implement /ck command to search for crypto constant tables
Rename /cu UDS CAN table search to /ru command
Add PGP search for signature and RSA encrypted private keys (#18961)
Add /cg command to search for GPG artifacts
Update tests and add /a[?]q for quiet-legacy mode
Use pdi in /ad output
Initial implementation of spp, snp, /bp and /pp to find next/prev preludes
Add /ab to find backward jumps (mostly loops) and handle ^C

shell

Autocomplete :. command
wv1,2,4,8 accept many space-separated numbers now
Remove other useless and incomplete treesitter leftovers and get +400 new commands in the recursive help
Remove colons in “?” number conversion output
Honor < and > comparison operators in RNumMath
Use RNum.math in “?b” to make ‘?b 1<<1’ work
Add scr.hist.filter to toggle the filtered history up/down search
Improved reverse-search in command history
Faster ^D (leave r2 without freeing the core)
Completely eliminate the deprecated backslash command
Add some help and better parsing for the anal hints