mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 10:01:43 +00:00
53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
#ifndef _ASM_POWERPC_SIGCONTEXT_H
|
|
#define _ASM_POWERPC_SIGCONTEXT_H
|
|
|
|
/*
|
|
* 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>
|
|
#ifdef __powerpc64__
|
|
#include <asm/elf.h>
|
|
#endif
|
|
|
|
struct sigcontext {
|
|
unsigned long _unused[4];
|
|
int signal;
|
|
#ifdef __powerpc64__
|
|
int _pad0;
|
|
#endif
|
|
unsigned long handler;
|
|
unsigned long oldmask;
|
|
struct pt_regs __user *regs;
|
|
#ifdef __powerpc64__
|
|
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
|
|
};
|
|
|
|
#endif /* _ASM_POWERPC_SIGCONTEXT_H */
|