/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * 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 #define PTRACE_GET_THREAD_AREA 25 #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 { unsigned long pad; struct { unsigned long bta, lp_start, lp_end, lp_count; unsigned long status32, ret, blink, fp, gp; unsigned long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0; unsigned long sp; } scratch; unsigned long pad2; struct { unsigned long r25, r24, r23, r22, r21, r20; unsigned long r19, r18, r17, r16, r15, r14, r13; } callee; unsigned long efa; /* break pt addr, for break points in delay slots */ unsigned long stop_pc; /* give dbg stop_pc after ensuring brkpt trap */ }; struct user_regs_arcv2 { unsigned long r30, r58, r59; }; #endif /* !__ASSEMBLY__ */ #endif /* _UAPI__ASM_ARC_PTRACE_H */