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/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*
* 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
* published by the Free Software Foundation.
*
* Amit Bhor, Sameer Dhavale: Codito Technologies 2004
*/
#ifndef _UAPI__ASM_ARC_PTRACE_H
#define _UAPI__ASM_ARC_PTRACE_H
#ifndef __ASSEMBLY__
/*
* Userspace ABI: Register state needed by
* -ptrace (gdbserver)
* -sigcontext (SA_SIGNINFO signal frame)
*
* This is to decouple pt_regs from user-space ABI, to be able to change it
* w/o affecting the ABI.
*
* The intermediate pad,pad2 are relics of initial layout based on pt_regs
* for optimizations when copying pt_regs to/from user_regs_struct.
* We no longer need them, but can't be changed as they are part of ABI now.
*
* Also, sigcontext only care about the scratch regs as that is what we really
* save/restore for signal handling. However gdb also uses the same struct
* hence callee regs need to be in there too.
*/
struct user_regs_struct {
long pad;
struct {
long bta, lp_start, lp_end, lp_count;
long status32, ret, blink, fp, gp;
long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0;
long sp;
} scratch;
long pad2;
struct {
long r25, r24, r23, r22, r21, r20;
long r19, r18, r17, r16, r15, r14, r13;
} callee;
long efa; /* break pt addr, for break points in delay slots */
long stop_pc; /* give dbg stop_pc after ensuring brkpt trap */
};
#endif /* !__ASSEMBLY__ */
#endif /* _UAPI__ASM_ARC_PTRACE_H */