src/runtime/x86-64-darwin-os.h

   1 #ifndef _X86_64_DARWIN_OS_H
   2 #define _X86_64_DARWIN_OS_H
   3
   4 #include "darwin-os.h"
   5
   6 #define X86_64_SIGFPE_FIXUP    /* Darwin doesn't handle accrued bits correctly. */
   7
   8 static inline unsigned int *
   9 arch_os_context_mxcsr_addr(os_context_t *context)
  10 {
  11   return &context->uc_mcontext->__fs.__fpu_mxcsr;
  12
  13 }
  14
  15 typedef register_t os_context_register_t;
  16
  17 static inline os_context_t *arch_os_get_context(void **void_context)
  18 {
  19     return (os_context_t *) *void_context;
  20 }
  21
  22 #if __DARWIN_UNIX03
  23 #define CONTEXT_ADDR_FROM_STEM(stem) (os_context_register_t*)&context->uc_mcontext->__ss.__##stem
  24 #else
  25 #define CONTEXT_ADDR_FROM_STEM(stem) &context->uc_mcontext->ss.stem
  26 #endif /* __DARWIN_UNIX03 */
  27
  28 #define RESTORE_FP_CONTROL_FROM_CONTEXT
  29 void os_restore_fp_control(os_context_t *context);
  30
  31 #endif /* _X86_64_DARWIN_OS_H */