lunaix-os/arch/x86/includes/sys/abi64.h

   1 #ifndef __LUNAIX_ARCH_ABI64_H
   2 #define __LUNAIX_ARCH_ABI64_H
   3
   4 #include "sys/x86_isa.h"
   5
   6 #define stack_alignment 0xfffffffffffffff0UL
   7
   8 #ifndef __ASM__
   9 #define store_retval(retval) current_thread->hstate->registers.rax = (retval)
  10
  11 #define store_retval_to(th, retval) (th)->hstate->registers.rax = (retval)
  12
  13 static inline void must_inline
  14 j_usr(ptr_t sp, ptr_t pc)
  15 {
  16     asm volatile(
  17                  "pushq %0\n"
  18                  "pushq %1\n"
  19                  "pushq %2\n"
  20                  "pushq %3\n"
  21                  "retfq"
  22                  ::
  23                     "i"(UDATA_SEG),
  24                     "r"(sp),
  25                     "i"(UCODE_SEG),
  26                     "r"(pc)
  27                  :
  28                  "memory");
  29 }
  30
  31 static inline ptr_t must_inline
  32 abi_get_callframe()
  33 {
  34     ptr_t val;
  35     asm volatile("movq %%rbp, %0" : "=r"(val)::"memory");
  36     return val;
  37 }
  38
  39 #endif
  40 #endif /* __LUNAIX_ARCH_ABI64_H */