factor/vm/os-linux-x86.64.hpp

32 lines
929 B
C++

#include <ucontext.h>
namespace factor {
inline static unsigned int uap_fpu_status(void* uap) {
ucontext_t* ucontext = (ucontext_t*)uap;
return ucontext->uc_mcontext.fpregs->swd |
ucontext->uc_mcontext.fpregs->mxcsr;
}
inline static void uap_clear_fpu_status(void* uap) {
ucontext_t* ucontext = (ucontext_t*)uap;
ucontext->uc_mcontext.fpregs->swd = 0;
ucontext->uc_mcontext.fpregs->mxcsr &= 0xffffffc0;
}
#define UAP_STACK_POINTER(ucontext) \
(((ucontext_t*)ucontext)->uc_mcontext.gregs[15])
#define UAP_PROGRAM_COUNTER(ucontext) \
(((ucontext_t*)ucontext)->uc_mcontext.gregs[16])
#define CODE_TO_FUNCTION_POINTER(code) (void)0
#define CODE_TO_FUNCTION_POINTER_CALLBACK(vm, code) (void)0
#define FUNCTION_CODE_POINTER(ptr) ptr
#define FUNCTION_TOC_POINTER(ptr) ptr
// Must match the stack-frame-size constant in
// bootstrap/assembler/x86.64.unix.factor
static const unsigned JIT_FRAME_SIZE = 32;
}