forked from luck/tmp_suning_uos_patched
9edef28653
This adds some helper routines for uncached mapping support. This simplifies some of the cases where we need to check the uncached mapping boundaries in addition to giving us a centralized location for building more complex manipulation on top of. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
150 lines
3.3 KiB
C
150 lines
3.3 KiB
C
#ifndef __ASM_SH_PTRACE_H
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#define __ASM_SH_PTRACE_H
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/*
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* Copyright (C) 1999, 2000 Niibe Yutaka
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*
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*/
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#if defined(__SH5__)
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struct pt_regs {
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unsigned long long pc;
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unsigned long long sr;
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long long syscall_nr;
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unsigned long long regs[63];
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unsigned long long tregs[8];
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unsigned long long pad[2];
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};
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#else
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/*
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* GCC defines register number like this:
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* -----------------------------
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* 0 - 15 are integer registers
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* 17 - 22 are control/special registers
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* 24 - 39 fp registers
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* 40 - 47 xd registers
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* 48 - fpscr register
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* -----------------------------
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*
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* We follows above, except:
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* 16 --- program counter (PC)
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* 22 --- syscall #
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* 23 --- floating point communication register
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*/
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#define REG_REG0 0
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#define REG_REG15 15
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#define REG_PC 16
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#define REG_PR 17
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#define REG_SR 18
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#define REG_GBR 19
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#define REG_MACH 20
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#define REG_MACL 21
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#define REG_SYSCALL 22
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#define REG_FPREG0 23
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#define REG_FPREG15 38
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#define REG_XFREG0 39
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#define REG_XFREG15 54
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#define REG_FPSCR 55
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#define REG_FPUL 56
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/*
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* This struct defines the way the registers are stored on the
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* kernel stack during a system call or other kernel entry.
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*/
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struct pt_regs {
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unsigned long regs[16];
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unsigned long pc;
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unsigned long pr;
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unsigned long sr;
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unsigned long gbr;
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unsigned long mach;
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unsigned long macl;
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long tra;
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};
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/*
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* This struct defines the way the DSP registers are stored on the
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* kernel stack during a system call or other kernel entry.
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*/
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struct pt_dspregs {
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unsigned long a1;
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unsigned long a0g;
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unsigned long a1g;
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unsigned long m0;
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unsigned long m1;
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unsigned long a0;
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unsigned long x0;
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unsigned long x1;
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unsigned long y0;
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unsigned long y1;
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unsigned long dsr;
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unsigned long rs;
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unsigned long re;
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unsigned long mod;
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};
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#endif
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#define PTRACE_GETREGS 12 /* General registers */
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#define PTRACE_SETREGS 13
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#define PTRACE_GETFPREGS 14 /* FPU registers */
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#define PTRACE_SETFPREGS 15
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#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */
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#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */
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#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */
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#define PTRACE_GETDSPREGS 55 /* DSP registers */
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#define PTRACE_SETDSPREGS 56
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#define PT_TEXT_END_ADDR 240
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#define PT_TEXT_ADDR 244 /* &(struct user)->start_code */
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#define PT_DATA_ADDR 248 /* &(struct user)->start_data */
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#define PT_TEXT_LEN 252
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#ifdef __KERNEL__
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#include <asm/addrspace.h>
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#include <asm/page.h>
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#include <asm/system.h>
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#define user_mode(regs) (((regs)->sr & 0x40000000)==0)
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#define instruction_pointer(regs) ((unsigned long)(regs)->pc)
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extern void show_regs(struct pt_regs *);
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/*
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* These are defined as per linux/ptrace.h.
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*/
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struct task_struct;
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#define arch_has_single_step() (1)
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extern void user_enable_single_step(struct task_struct *);
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extern void user_disable_single_step(struct task_struct *);
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struct perf_event;
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struct perf_sample_data;
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extern void ptrace_triggered(struct perf_event *bp, int nmi,
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struct perf_sample_data *data, struct pt_regs *regs);
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#define task_pt_regs(task) \
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((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE) - 1)
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static inline unsigned long profile_pc(struct pt_regs *regs)
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{
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unsigned long pc = instruction_pointer(regs);
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if (virt_addr_uncached(pc))
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return CAC_ADDR(pc);
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return pc;
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}
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#endif /* __KERNEL__ */
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#endif /* __ASM_SH_PTRACE_H */
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