blob: 6f8aee768c5e9413627490ef805bce9ecc10c5b9 [file] [log] [blame]
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
#include <linux/compiler.h>
#include <asm/ptrace.h>
#include <asm/elf.h>
struct sigcontext {
unsigned long _unused[4];
int signal;
int _pad0;
unsigned long handler;
unsigned long oldmask;
struct pt_regs __user *regs;
elf_gregset_t gp_regs;
elf_fpregset_t fp_regs;
* To maintain compatibility with current implementations the sigcontext is
* extended by appending a pointer (v_regs) to a quadword type (elf_vrreg_t)
* followed by an unstructured (vmx_reserve) field of 69 doublewords. This
* allows the array of vector registers to be quadword aligned independent of
* the alignment of the containing sigcontext or ucontext. It is the
* responsibility of the code setting the sigcontext to set this pointer to
* either NULL (if this processor does not support the VMX feature) or the
* address of the first quadword within the allocated (vmx_reserve) area.
* The pointer (v_regs) of vector type (elf_vrreg_t) is type compatible with
* an array of 34 quadword entries (elf_vrregset_t). The entries with
* indexes 0-31 contain the corresponding vector registers. The entry with
* index 32 contains the vscr as the last word (offset 12) within the
* quadword. This allows the vscr to be stored as either a quadword (since
* it must be copied via a vector register to/from storage) or as a word.
* The entry with index 33 contains the vrsave as the first word (offset 0)
* within the quadword.
elf_vrreg_t __user *v_regs;
long vmx_reserve[ELF_NVRREG+ELF_NVRREG+1];
#endif /* _ASM_PPC64_SIGCONTEXT_H */