diff options
Diffstat (limited to 'arch/arm64/include/uapi/asm/siginfo.h')
| -rw-r--r-- | arch/arm64/include/uapi/asm/siginfo.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/siginfo.h b/arch/arm64/include/uapi/asm/siginfo.h index 5a74a0853db0..c80c612885ae 100644 --- a/arch/arm64/include/uapi/asm/siginfo.h +++ b/arch/arm64/include/uapi/asm/siginfo.h @@ -1,5 +1,6 @@ /* * Copyright (C) 2012 ARM Ltd. + * Copyright (C) 2014 Cavium Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -18,6 +19,38 @@ #define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +#ifdef __ILP32__ + +/* + * For ILP32, the siginfo structures should share the same layout and + * alignement requirements as LP64 ABI. + * To do this, use an extra pad field and add aligned attribute + * to the structure. + */ + +# ifdef __AARCH64EB__ +# define __SIGINFO_INNER(type, field) \ + int __pad#field; \ + type field +# else +# define __SIGINFO_INNER(type, field) \ + type field; \ + int __pad#field +# endif + +# undef __SIGINFO_VOIDPTR +# define __SIGINFO_VOIDPTR(field) \ + __SIGINFO_INNER(void __user*, field) +# undef __SIGINFO_BAND + +# define __SIGINFO_BAND(field) \ + __SIGINFO_INNER(long, field) + +/* Make the alignment of siginfo always 8 byte aligned. */ +#define __ARCH_SI_ATTRIBUTES __attribute__((aligned(8))) + +#endif + #include <asm-generic/siginfo.h> #endif |