sysdeps/i386/jmp_buf.h

   1 /* Define the machine-dependent type `jmp_buf'.  Intel 386 version.  */
   2
   3 #if     defined (__USE_MISC) || defined (_ASM)
   4 #define JB_BX   0
   5 #define JB_SI   1
   6 #define JB_DI   2
   7 #define JB_BP   3
   8 #define JB_SP   4
   9 #define JB_PC   5
  10 #endif
  11
  12 #ifndef _ASM
  13 typedef int __jmp_buf[6];
  14 #endif
  15
  16 /* Test if longjmp to JMPBUF would unwind the frame
  17    containing a local variable at ADDRESS.  */
  18 #define _JMPBUF_UNWINDS(jmpbuf, address) \
  19   ((int) (address) < (jmpbuf)[JB_SP])