include/bits/siginfo-arch.h

   1 /* Architecture-specific adjustments to siginfo_t.  x86 version.  */
   2 #ifndef _BITS_SIGINFO_ARCH_H
   3 #define _BITS_SIGINFO_ARCH_H 1
   4
   5 #if defined __x86_64__ && __WORDSIZE == 32
   6 /* si_utime and si_stime must be 4 byte aligned for x32 to match the
   7    kernel.  We align siginfo_t to 8 bytes so that si_utime and
   8    si_stime are actually aligned to 8 bytes since their offsets are
   9    multiple of 8 bytes.  Note: with some compilers, the alignment
  10    attribute would be ignored if it were put in __SI_CLOCK_T instead
  11    of encapsulated in a typedef.  */
  12 typedef __clock_t __attribute__ ((__aligned__ (4))) __sigchld_clock_t;
  13 # define __SI_ALIGNMENT __attribute__ ((__aligned__ (8)))
  14 # define __SI_CLOCK_T __sigchld_clock_t
  15 #endif
  16
  17 #endif