Duby/Capstone

Capstone Engine is an open source library for disassembly.

Compiling with Mingw (32 or 64)

The default compilation doesn't work and fails with a linking error:

./arch/Sparc/SparcInstPrinter.o:SparcInstPrinter.c:(.text+0x4e0): multiple definition of `imaxabs'
./arch/PowerPC/PPCInstPrinter.o:PPCInstPrinter.c:(.text+0x16030): first defined here
collect2.exe: error: ld returned 1 exit status
make: *** [libcapstone.so] Error 1

(for whatever reason "imaxabs" is included in resulting files as a stand-alone function, rather than inline function)

The following command line should be used to compile the library on MinGW (with gcc installed)

CFLAGS="-llibmingwex" ./make.sh gcc

Adding libmingwex library for compilation prevents imaxabs to be inserted into .o file (because the function is implemented in mingwex)

For x64, there's Mingw-64 project. After building static library is renamed into "capstone.lib" (even though it should be named "libcapstone.a"). (Presumably, there's a hard-coded rule, if Windows and 64-bit platform, follow MS VS standards)

Static Linking

Once the static library is built, it's possible to link it statically to the executable. However, there are certain dependencies that must be resolved first.

 {$linklib libcapstone} // library itself
 {$ifdef mswindows}
 {$linklib libmsvcrt}   // MS Visual C runtime (mingw bindings)
 {$linklib libgcc}      // C++ library
 {$endif}

• libmsvcrt for _malloc _calloc _realloc _free _vsnprintf _memset _memcpy _strncpy _sprintf _strlen _strrchr _strncmp _strstr _strcmp _strchr _memmove _strcpy _atoi _tolower
• libgcc for ___ctzdi2 ___popcountsi2 ___popcountdi2 ___umoddi3 ___udivdi3 (https://gcc.gnu.org/onlinedocs/gccint/Integer-library-routines.html)

Such dependencies are pretty typical for mingw compilation.

See Also

• duby
• http://www.capstone-engine.org/ - official Capstone Engine site
• https://github.com/stievie/TCapstone - Pascal bindings for Capstone Engine library by Stefan Ascher (stievie)