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

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Porting VM to C++
2009-05-02 05:04:19 -04:00
#include <ucontext.h>
Use C++ namespaces
2009-05-04 02:46:13 -04:00
namespace factor
{
save the FP status out of the signal context and use it as part of the fp trap factor exception. clear the FP status before continuing after an exception
2009-09-14 00:37:28 -04:00
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;
}
vm: clean up signal handling and add EXC_BAD_INSTRUCTION Mach exception handler for OS X, since signal handlers cannot change the stack pointer
2009-10-22 06:22:59 -04:00
#define UAP_STACK_POINTER(ucontext) (((ucontext_t *)ucontext)->uc_mcontext.gregs[15])
#define UAP_PROGRAM_COUNTER(ucontext) (((ucontext_t *)ucontext)->uc_mcontext.gregs[16])
Use C++ namespaces
2009-05-04 02:46:13 -04:00
}