diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h b/sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h new file mode 100644 index 0000000000..6c85dbb6e8 --- /dev/null +++ b/sysdeps/unix/sysv/linux/x86/bits/siginfo-arch.h @@ -0,0 +1,19 @@ +/* Architecture-specific adjustments to siginfo_t. x86 version. */ +#ifndef _BITS_SIGINFO_ARCH_H +#define _BITS_SIGINFO_ARCH_H 1 + +#if defined __x86_64__ && __WORDSIZE == 32 +/* si_utime and si_stime must be 4 byte aligned for x32 to match the + kernel. We align siginfo_t to 8 bytes so that si_utime and + si_stime are actually aligned to 8 bytes since their offsets are + multiple of 8 bytes. Note: with some compilers, the alignment + attribute would be ignored if it were put in __SI_CLOCK_T instead + of encapsulated in a typedef. */ +typedef __clock_t __attribute__ ((__aligned__ (4))) __sigchld_clock_t; +# undef __SI_ALIGNMENT +# define __SI_ALIGNMENT __attribute__ ((__aligned__ (8))) +# undef __SI_CLOCK_T +# define __SI_CLOCK_T __sigchld_clock_t +#endif + +#endif |