src/runtime/x86-64-lispregs.h

   1 /*
   2  * These register names and offsets correspond to definitions in
   3  * compiler/x86/vm.lisp. They map into accessors in the OS-dependent
   4  * POSIX signal context structure os_context_t via the
   5  * os_context_register_addr(..) OS-dependent function.
   6  */
   7
   8 /*
   9  * This software is part of the SBCL system. See the README file for
  10  * more information.
  11  *
  12  * This software is derived from the CMU CL system, which was
  13  * written at Carnegie Mellon University and released into the
  14  * public domain. The software is in the public domain and is
  15  * provided with absolutely no warranty. See the COPYING and CREDITS
  16  * files for more information.
  17  */
  18
  19 /* the number of registers visible as registers in the virtual machine
  20  * (excludes stuff like segment registers) */
  21 #define NREGS   (16)
  22
  23 #ifdef LANGUAGE_ASSEMBLY
  24 #define REG(num) $ ## num
  25 #else
  26 #define REG(num) num
  27 #endif
  28
  29 #define reg_RAX REG( 0)
  30 #define reg_RCX REG( 2)
  31 #define reg_RDX REG( 4)
  32 #define reg_RBX REG( 6)
  33 #define reg_RSP REG( 8)
  34 #define reg_RBP REG(10)
  35 #define reg_RSI REG(12)
  36 #define reg_RDI REG(14)
  37 #define reg_R8  REG(16)
  38 #define reg_R9  REG(18)
  39 #define reg_R10 REG(20)
  40 #define reg_R11 REG(22)
  41 #define reg_R12 REG(24)
  42 #define reg_R13 REG(26)
  43 #define reg_R14 REG(28)
  44 #define reg_R15 REG(30)
  45
  46 #define REGNAMES "RAX", "RCX", "RDX", "RBX", "RSP", "RBP", "RSI", "RDI"
  47
  48 /* classification of registers
  49  *
  50  * reg_SP = the register used by Lisp as stack pointer
  51  * reg_FP = the register used by Lisp as frame pointer
  52  * BOXED_REGISTERS =
  53  *   the registers which may contain Lisp object pointers */
  54 #define reg_SP reg_RSP
  55 #define reg_FP reg_RBP
  56 #define BOXED_REGISTERS {\
  57   reg_RAX, reg_RCX, reg_RDX, reg_RBX, reg_RSI, reg_RDI \
  58 }