Toolchain machinery for compilers, code generators, assemblers, linkers, and emulators.
- Currently targets the x86-64, ARMv8 AArch64, and MIPS32 architectures.
- No runtime dependencies other than the system's C++ standard library.
- No build prerequisites beyond the Autotools toolchain and a C++11 compiler.
- Compatible with Clang and GCC, or any standard C++11 implementation.
- 100% free and unencumbered public domain software, usable in any context and for any purpose.
#include <machinery/arch/x86.h>
#include <machinery/util/buffer.h>
#include <cstdio> /* for std::printf() */
#include <cstdlib> /* for std::atoi() */
using namespace machinery::arch;
using namespace machinery::arch::x86;
using namespace machinery::util;
int main(int argc, char* argv[]) {
executable_buffer code;
x86_emitter<executable_buffer> emit(code);
/* Function prolog: */
emit.push(reg64::rbp);
emit.mov(reg64::rbp, reg64::rsp);
/* Clear the RAX register: */
emit.mov(reg64::rax, imm64{0});
/* For each command-line argument: */
for (auto i = 1; i < argc; i++) {
/* Convert the argument to an integer: */
const int arg = std::atoi(argv[i]);
/* Add the integer argument to RAX: */
emit.add(imm32(arg));
}
/* Function epilog: */
emit.pop(reg64::rbp);
emit.ret();
/* Execute the code buffer and print out the result: */
std::printf("%d\n", code.execute<std::int32_t>());
return EXIT_SUCCESS;
}
Note
Older releases may work, but are not actively tested for.
$ ./autogen.sh $ ./configure # on Linux $ ./configure --with-stdlib=libc++ # on FreeBSD / Mac OS X $ make $ sudo make install $ sudo ldconfig # on Linux
Find this project at: GitHub, Bitbucket, Ohloh, SourceForge, Travis CI, and Coverity Scan.
This project is part of the DRY initiative.
If you found this software useful and would like to encourage its maintenance and further development, please consider making a $5 donation to the author(s) via Gratipay or Bitcoin.
This is free and unencumbered public domain software. For more information,
see http://unlicense.org/ or the accompanying UNLICENSE file.
