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Diffstat (limited to 'arch/arc/include/uapi/asm/ptrace.h')
| -rw-r--r-- | arch/arc/include/uapi/asm/ptrace.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arc/include/uapi/asm/ptrace.h b/arch/arc/include/uapi/asm/ptrace.h new file mode 100644 index 000000000..2a6eff57f --- /dev/null +++ b/arch/arc/include/uapi/asm/ptrace.h @@ -0,0 +1,58 @@ +/* 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 */ |