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TUI Disassembler inspired by perf annotate

License: MIT License

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disassembler tui

das's Introduction

DAS - disassembler

DAS is an interactive disassembler inspired by perf annotate. It basically wraps the raw disassemly output from objdump -d and provides more information and functionality like instruction help, jump/call following, string lookup and function inlining info.

https://github.com/namhyung/das

Usage

$ das <program>
  -d string
            Path to objdump tool (default "objdump")
  -i        Use inline info
  -v        Show version number

It supports following keys

UP/DOWN/PGUP/PGDOWN/HOME/END: move cursor
ENTER: fold/expand a section or move to a function
ESCAPE: return to previous function
v: toggle "raw" mode
l: list functions
q: quit
/: search
n: search next
p: search previous
s/S: save screen shot
r: focus register

How to install

If you have golang environment setup:

$ go get github.com/namhyung/das

Or, just download the binary:

$ wget https://github.com/namhyung/das/releases/download/v0.3/das-linux-amd64
$ sudo install -D das-linux-amd64 /usr/local/bin/das

das's People

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myexecfilecrackinjection lanza bernhardkaindl

das's Issues

Show inline information

The objdump has -l option which shows line numbers with function name. So we can deduce the inlined function information.

An example output is like below:

0000000000001201 <main>:
main():
/home/namhyung/tmp/hello.c:8
    1201:	55                   	push   %rbp
    1202:	48 89 e5             	mov    %rsp,%rbp
    1205:	48 83 ec 20          	sub    $0x20,%rsp
    1209:	ff 15 d9 2d 00 00    	callq  *0x2dd9(%rip)        # 3fe8 <mcount@GLIBC_2.2.5>
    120f:	89 7d ec             	mov    %edi,-0x14(%rbp)
    1212:	48 89 75 e0          	mov    %rsi,-0x20(%rbp)
/home/namhyung/tmp/hello.c:9
    1216:	48 8d 05 f1 0d 00 00 	lea    0xdf1(%rip),%rax        # 200e <_IO_stdin_used+0xe>
    121d:	48 89 45 f8          	mov    %rax,-0x8(%rbp)
/home/namhyung/tmp/hello.c:11
    1221:	83 7d ec 01          	cmpl   $0x1,-0x14(%rbp)
    1225:	7e 0c                	jle    1233 <main+0x32>

vim Bindings do not work in the binary

when pressing j/k the line is not moving.
I installed from the binary as advertised in the README.md
achlinux; 5.6.8-arch1-1 #1 SMP PREEMPT Wed, 29 Apr 2020 16:22:56 +0000 x86_64 GNU/Linux
I looked at the code, and there is apparently code to to that.
https://github.com/namhyung/das/blob/master/tui.go#L764

I am trying to compile it locally, but there are errors.

Apparently, it needs capstone to be installed. (cannot find capstone/capstone.h) (fair. installed it)
then it complains: in bnagy/gapstone/arm_64_constants.go "could not determine kind of name for C.ARM64_[]" but I think the problem is in gapstone itself. -> I'd like to have a list of dependencies in this repo anyway.

So I think the vim bindings should be mentioned in the README.
And they should work in the binary.

Would be happy to contribute, if necessary, (Mostly about more vim-like-user-experience).

Cannot handle vmlinux

It does't show meaningful result and prints following messages:

2019/12/13 17:13:33 strconv.ParseInt: parsing "ffffffff824f3573": value out of range
2019/12/13 17:13:33 strconv.ParseInt: parsing "ffffffff824f357f": value out of range
2019/12/13 17:13:33 strconv.ParseInt: parsing "ffffffff824f35a1": value out of range
2019/12/13 17:13:33 strconv.ParseInt: parsing "ffffffff824f35cf": value out of range
2019/12/13 17:13:33 strconv.ParseInt: parsing "ffffffff824f35db": value out of range
2019/12/13 17:13:33 strconv.ParseInt: parsing "ffffffff824f35f1": value out of range
2019/12/13 17:13:33 strconv.ParseInt: parsing "ffffffff824f35fd": value out of range

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