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View Code? Open in Web Editor NEW✨ Modern C++ 20 signature match / search library
License: Apache License 2.0
✨ Modern C++ 20 signature match / search library
License: Apache License 2.0
Hello again @SpriteOvO,
Your code uses much newer C++ concepts than my brain does, and I'm at a complete loss while trying to build a Lua module that allows use of sigmatch searches from within Lua as I can't figure out how to use ""_sig with a variable std::string received from Lua...
Is this possible or would it require changes to the way the library works?
Thanks,
Matt.
This is already a C++ 20 library so why not have a version of this library that comes as a single C++20 module interface definition file instead of a header, to benefit from faster compile times and other advantages modules have over headers.
Instead of a single header you would have a single .ixx (or whatever extension other compilers use, the extension doesn't matter)
Hello,
I'm curious if you'd be interested in making your tooling compatible with Ghidra's builtin instruction pattern search syntax, IE:
[01001...] 89 5c [..100100] 08 [01001...] 89 6c [..100100] 18 [01001...] 89 74 [..100100] 20 57 [01000...] 54 [01000...] 55 [01000...] 56 [01000...] 57 [01001...] 83 ec 70 [01001...] 8b [11......] [01000...] 32 [11......] [01001...] 8b [00...101] [........] [........] [........] [........] [01001...] 85 [11......] 74 [........] [01000...] 8b [10......] [........] [........] [........] [........]
with full bytes in hex, binary bits within [ and ] and . as single bit wildcards... I'm not entirely sure why, but Ghidra seems to love to mask a lot of the instructions to a 5 bit wildcarded byte.
The original unmasked byte sequence for this was:
48 89 5c 24 08 48 89 6c 24 18 48 89 74 24 20 57 41 54 41 55 41 56 41 57 48 83 ec 70 48 8b e9 45 32 e4 48 8b 15 cf 11 f2 01 48 85 d2 74 2d 44 8b 89 a8 00 00 00
I was thinking about trying to add this in myself, but the newer C++ syntax is a bit out of my skill level at this point. Ghidra's instruction pattern search editor makes it very easy to find a good signature that matches well IMO.
C:\PROGRA~1\MICROS~3\2022\ENTERP~1\VC\Tools\MSVC\1437~1.328\bin\HostX64\x64\cl.exe /TP -IE:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include /nologo /DWIN32 /D_WINDOWS /W3 /utf-8 /GR /EHsc /MP /MD /O2 /Oi /Gy /DNDEBUG /Z7 -std:c++20 /showIncludes /Foexamples\CMakeFiles\02.custom_reader.dir\02.custom_reader.cpp.obj /Fdexamples\CMakeFiles\02.custom_reader.dir\ /FS -c E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\examples\02.custom_reader.cpp
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(624): error C2512: 'std::array<sigmatch::sig_byte,6>': no appropriate default constructor available
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(624): note: Invalid aggregate initialization
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(2926): note: while evaluating consteval function 'sigmatch::impl::parse_sig_str_compile_time'
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(624): note: the template instantiation context (the oldest one first) is
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\examples\02.custom_reader.cpp(105): note: see reference to function template instantiation 'sigmatch::signature sigmatch_literals::operator ""_sig<sigmatch::details::consteval_str_buffer<18>{sigmatch::details::consteval_str_buffer<18>::char_type49,65,32,50,66,32,63,63,32,63,63,32,53,69,32,54,70,0}>(void)' being compiled
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(2926): note: see reference to function template instantiation 'std::array<sigmatch::sig_byte,6> sigmatch::impl::parse_sig_str_compile_time<sigmatch::details::consteval_str_buffer<18>{sigmatch::details::consteval_str_buffer<18>::char_type49,65,32,50,66,32,63,63,32,63,63,32,53,69,32,54,70,0}>(void)' being compiled
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(1425): note: see reference to function template instantiation 'std::array<sigmatch::sig_byte,6> sigmatch::details::friendly_construct_array<sigmatch::sig_byte,6>(void) noexcept' being compiled
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(2926): error C7595: 'sigmatch::impl::parse_sig_str_compile_time': call to immediate function is not a constant expression
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(624): note: a non-constant (sub-)expression was encountered
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(2926): note: the call stack of the evaluation (the oldest call first) is
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(2926): note: while evaluating function 'std::array<sigmatch::sig_byte,6> sigmatch::impl::parse_sig_str_compile_time<sigmatch::details::consteval_str_buffer<18>{sigmatch::details::consteval_str_buffer<18>::char_type49,65,32,50,66,32,63,63,32,63,63,32,53,69,32,54,70,0}>(void)'
E:\vcpkg\buildtrees\sigmatch\src\v0.2.0-bf43ea0aed\include\sigmatch/sigmatch.hpp(1425): note: while evaluating function 'std::array<sigmatch::sig_byte,6> sigmatch::details::friendly_construct_array<sigmatch::sig_byte,6>(void) noexcept'
Environment:
windows 10
msvc 14.37.32822
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