Skip to content

Commit

Permalink
Examples: add DisassembleSimple
Browse files Browse the repository at this point in the history
  • Loading branch information
athre0z committed Sep 11, 2022
1 parent 13c46be commit 9cee79f
Show file tree
Hide file tree
Showing 2 changed files with 74 additions and 0 deletions.
8 changes: 8 additions & 0 deletions CMakeLists.txt
Expand Up @@ -273,6 +273,14 @@ endfunction ()

if (ZYDIS_BUILD_EXAMPLES AND NOT ZYAN_NO_LIBC)
if (ZYDIS_FEATURE_DECODER AND ZYDIS_FEATURE_FORMATTER AND (NOT ZYDIS_MINIMAL_MODE))
add_executable("DisassembleSimple" "examples/DisassembleSimple.c")
target_link_libraries("DisassembleSimple" "Zydis")
set_target_properties("DisassembleSimple" PROPERTIES FOLDER "Examples")
target_compile_definitions("DisassembleSimple" PRIVATE "_CRT_SECURE_NO_WARNINGS")
zyan_set_common_flags("DisassembleSimple")
zyan_maybe_enable_wpo("DisassembleSimple")
_maybe_set_emscripten_cfg("DisassembleSimple")

add_executable("Disassemble" "examples/Disassemble.c")
target_link_libraries("Disassemble" "Zydis")
set_target_properties("Disassemble" PROPERTIES FOLDER "Examples")
Expand Down
66 changes: 66 additions & 0 deletions examples/DisassembleSimple.c
@@ -0,0 +1,66 @@
/***************************************************************************************************
Zyan Disassembler Library (Zydis)
Original Author : Joel Hoener
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
***************************************************************************************************/

/**
* @file
* Demonstrates disassembling using the "all-in-one" disassembler API.
*/

#include <stdio.h>
#include <inttypes.h>
#include <Zydis/Zydis.h>

int main()
{
ZyanU8 data[] =
{
0x51, 0x8D, 0x45, 0xFF, 0x50, 0xFF, 0x75, 0x0C, 0xFF, 0x75,
0x08, 0xFF, 0x15, 0xA0, 0xA5, 0x48, 0x76, 0x85, 0xC0, 0x0F,
0x88, 0xFC, 0xDA, 0x02, 0x00
};

// The runtime address (instruction pointer) was chosen arbitrarily here in order to better
// visualize relative addressing. In your actual program, set this to e.g. the memory address
// that the code being disassembled was read from.
ZyanU64 runtime_address = 0x007FFFFFFF400000;

// Loop over the instructions in our buffer.
ZyanUSize offset = 0;
ZydisDisassembledInstruction instruction;
while (ZYAN_SUCCESS(ZydisDisassembleIntel(
/* machine_mode: */ ZYDIS_MACHINE_MODE_LONG_64,
/* runtime_address: */ runtime_address,
/* buffer: */ data + offset,
/* length: */ sizeof(data) - offset,
/* instruction: */ &instruction
))) {
printf("%016" PRIX64 " %s\n", runtime_address, instruction.text);
offset += instruction.info.length;
runtime_address += instruction.info.length;
}

return 0;
}

0 comments on commit 9cee79f

Please sign in to comment.