Stephen Rothwellpowerpc: merge sigcontext.h608f8b321 years agoHistory
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#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 */