- #REVERSE ENGINEERING HOPPER DISASSEMBLER V3.9.9 HOW TO#
- #REVERSE ENGINEERING HOPPER DISASSEMBLER V3.9.9 PATCH#
In your case it's arm64 assembly (formally the A64 instruction set) as outlined in the ARMv8 Reference Manual. You almost certainly get this because Hopper fails to properly decompile the instruction. Wikipedia might serve as an introduction. The stack pointer is too large to be a relative offset (only 8K RAM) and too small to point into SRAM (starting at 0x2000 0000). It's inline assembly, equivalent to the asm keyword in C. What I don't understand are the memory addresses. bin file using arm-none-eabi-objcopy and found: 0x0000 0000 | 10050020 (Stack pointer) I use hopper disassembler to disassemble iOS apps. Then starts code execution from the boot memory starting from 0x0000 Im trying to learn about reverse engineering, using Minesweeper as a sample. The CPU fetches the top-of-stack value from address 0x0000 0000, In other words, the Flash memoryĬontents can be accessed starting from address 0x0000 0000 or 0x800
But when I enter that expression, Hopper consider it as invalid It works perfectly in IDA and Im not sure why. The ASM code I use is like the following.
#REVERSE ENGINEERING HOPPER DISASSEMBLER V3.9.9 PATCH#
The BOOT0 pin is tied low, so I know it's booting from main flash memory:īoot from main Flash memory: the main Flash memory is aliased in theīoot memory space (0x0000 0000), but still accessible from its Im trying to Patch a 32bit ELF file with Hopper disassembler. The source code is available in zip and tar.gz formats, or at tagname 3.0.4 in our Github repo. The values I try to figure out are the ones shown here:įrom what I know, the processor is a STM32F100C8, ARM Cortex-M3, 64Kbytes Flash, 8Kbytes RAM. We are excited to announce the stable version 3.0.4 of Capstone disassembly framework This release fixes some important security issues, so all users are strongly recommended to uprade. We tested nine popular industry and research disassemblers: IDA Pro v6.7, Hopper v3.11.5, Dyninst v9.1.0 5, BAP v0.9.9 7, ByteWeight v0.9.9 4.
#REVERSE ENGINEERING HOPPER DISASSEMBLER V3.9.9 HOW TO#
My question is how to initialize the disassembler properly (Hopper Disassembler). there should be one argument passed to the executable (keep in mind there is always one implicit argument which is the executable name itself. So, it is comparing argc to 2 and exiting if it is not equal i.e. arg0 is really argc for the main function. I'm trying to disassemble a firmware for a DIY project, open hardware but closed firmware. It might be easier to read the actual disassembly rather than an attempted decompilation.
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