alvinhochun

Control Flow Guard (CFG/CFGuard) for mingw-w64

Control Flow Guard is a security mitigation that verifies the target address of indirect calls. It works by having the compiler insert a check at indirect call sites to verify the validity of the call target, and also the linker write the necessary data and flags into the PE/COFF image to enable the feature on Windows' end.

mmozeiko

#include <windows.h>
#include <intrin.h>

#define Assert(x) do { if (!(x)) __debugbreak(); } while (0)

static struct
{
    DWORD process_id;
    char  data[4096 - sizeof(DWORD)];
}* ods_buffer;