mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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1a29ef8e97
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73
178 lines
4.6 KiB
C
178 lines
4.6 KiB
C
/*
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* arch/ubicom32/include/asm/ptrace.h
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* Ubicom32 architecture ptrace support.
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*
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* (C) Copyright 2009, Ubicom, Inc.
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*
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* This file is part of the Ubicom32 Linux Kernel Port.
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*
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* The Ubicom32 Linux Kernel Port is free software: you can redistribute
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* it and/or modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Ubicom32 Linux Kernel Port is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Ubicom32 Linux Kernel Port. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Ubicom32 implementation derived from (with many thanks):
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* arch/m68knommu
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* arch/blackfin
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* arch/parisc
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*/
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#ifndef _ASM_UBICOM32_PTRACE_H
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#define _ASM_UBICOM32_PTRACE_H
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#ifndef __ASSEMBLY__
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/*
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* We use hard coded constants because this is shared with user
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* space and the values are NOT allowed to change. Only fields
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* that are intended to be exposed get values.
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*/
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#define PT_D0 0
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#define PT_D1 4
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#define PT_D2 8
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#define PT_D3 12
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#define PT_D4 16
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#define PT_D5 20
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#define PT_D6 24
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#define PT_D7 28
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#define PT_D8 32
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#define PT_D9 36
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#define PT_D10 40
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#define PT_D11 44
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#define PT_D12 48
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#define PT_D13 52
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#define PT_D14 56
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#define PT_D15 60
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#define PT_A0 64
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#define PT_A1 68
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#define PT_A2 72
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#define PT_A3 76
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#define PT_A4 80
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#define PT_A5 84
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#define PT_A6 88
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#define PT_A7 92
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#define PT_SP 92
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#define PT_ACC0HI 96
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#define PT_ACC0LO 100
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#define PT_MAC_RC16 104
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#define PT_ACC1HI 108
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#define PT_ACC1LO 112
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#define PT_SOURCE3 116
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#define PT_INST_CNT 120
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#define PT_CSR 124
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#define PT_DUMMY_UNUSED 128
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#define PT_INT_MASK0 132
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#define PT_INT_MASK1 136
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#define PT_TRAP_CAUSE 140
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#define PT_PC 144
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#define PT_ORIGINAL_D0 148
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#define PT_FRAME_TYPE 152
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/*
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* The following 'registers' are not registers at all but are used
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* locate the relocated sections.
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*/
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#define PT_TEXT_ADDR 200
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#define PT_TEXT_END_ADDR 204
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#define PT_DATA_ADDR 208
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#define PT_EXEC_FDPIC_LOADMAP 212
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#define PT_INTERP_FDPIC_LOADMAP 216
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/*
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* This struct defines the way the registers are stored on the
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* stack during a system call.
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*/
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enum thread_type {
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NORMAL_THREAD,
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KERNEL_THREAD,
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};
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#define UBICOM32_FRAME_TYPE_SYSCALL -1 /* System call frame */
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#define UBICOM32_FRAME_TYPE_INVALID 0 /* Invalid frame, no longer in use */
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#define UBICOM32_FRAME_TYPE_INTERRUPT 1 /* Interrupt frame */
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#define UBICOM32_FRAME_TYPE_TRAP 2 /* Trap frame */
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#define UBICOM32_FRAME_TYPE_SIGTRAMP 3 /* Signal trampoline frame. */
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#define UBICOM32_FRAME_TYPE_NEW_THREAD 4 /* New Thread. */
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struct pt_regs {
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/*
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* Data Registers
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*/
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unsigned long dn[16];
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/*
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* Address Registers
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*/
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unsigned long an[8];
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/*
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* Per thread misc registers.
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*/
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unsigned long acc0[2];
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unsigned long mac_rc16;
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unsigned long acc1[2];
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unsigned long source3;
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unsigned long inst_cnt;
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unsigned long csr;
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unsigned long dummy_unused;
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unsigned long int_mask0;
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unsigned long int_mask1;
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unsigned long trap_cause;
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unsigned long pc;
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unsigned long original_dn_0;
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/*
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* Frame type. Syscall frames are -1. For other types look above.
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*/
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unsigned long frame_type;
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/*
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* These fields are not exposed to ptrace.
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*/
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unsigned long previous_pc;
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long nesting_level; /* When the kernel in in user space this
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* will be -1. */
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unsigned long thread_type; /* This indicates if this is a kernel
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* thread. */
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};
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/*
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* This is the extended stack used by signal handlers and the context
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* switcher: it's pushed after the normal "struct pt_regs".
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*/
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struct switch_stack {
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unsigned long dummy;
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};
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#ifdef __KERNEL__
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/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
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#define PTRACE_GETREGS 12
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#define PTRACE_SETREGS 13
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#ifndef PS_S
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#define PS_S (0x2000)
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#define PS_M (0x1000)
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#endif
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extern int __user_mode(unsigned long sp);
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#define user_mode(regs) (__user_mode((regs->an[7])))
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#define user_stack(regs) ((regs)->an[7])
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#define instruction_pointer(regs) ((regs)->pc)
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#define profile_pc(regs) instruction_pointer(regs)
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extern void show_regs(struct pt_regs *);
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#endif /* __KERNEL__ */
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_UBICOM32_PTRACE_H */
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