| #ifndef __ASM_SH_PTRACE_H |
| #define __ASM_SH_PTRACE_H |
| |
| /* |
| * Copyright (C) 1999, 2000 Niibe Yutaka |
| */ |
| |
| #define PTRACE_GETREGS 12 /* General registers */ |
| #define PTRACE_SETREGS 13 |
| |
| #define PTRACE_GETFPREGS 14 /* FPU registers */ |
| #define PTRACE_SETFPREGS 15 |
| |
| #define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */ |
| |
| #define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */ |
| #define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */ |
| |
| #define PTRACE_GETDSPREGS 55 /* DSP registers */ |
| #define PTRACE_SETDSPREGS 56 |
| |
| #define PT_TEXT_END_ADDR 240 |
| #define PT_TEXT_ADDR 244 /* &(struct user)->start_code */ |
| #define PT_DATA_ADDR 248 /* &(struct user)->start_data */ |
| #define PT_TEXT_LEN 252 |
| |
| #if defined(__SH5__) || defined(CONFIG_CPU_SH5) |
| #include "ptrace_64.h" |
| #else |
| #include "ptrace_32.h" |
| #endif |
| |
| #ifdef __KERNEL__ |
| |
| #include <linux/stringify.h> |
| #include <linux/stddef.h> |
| #include <linux/thread_info.h> |
| #include <asm/addrspace.h> |
| #include <asm/page.h> |
| #include <asm/system.h> |
| |
| #define user_mode(regs) (((regs)->sr & 0x40000000)==0) |
| #define kernel_stack_pointer(_regs) ((unsigned long)(_regs)->regs[15]) |
| |
| #define GET_FP(regs) ((regs)->regs[14]) |
| #define GET_USP(regs) ((regs)->regs[15]) |
| |
| extern void show_regs(struct pt_regs *); |
| |
| #define arch_has_single_step() (1) |
| |
| /* |
| * kprobe-based event tracer support |
| */ |
| struct pt_regs_offset { |
| const char *name; |
| int offset; |
| }; |
| |
| #define REG_OFFSET_NAME(r) {.name = #r, .offset = offsetof(struct pt_regs, r)} |
| #define REGS_OFFSET_NAME(num) \ |
| {.name = __stringify(r##num), .offset = offsetof(struct pt_regs, regs[num])} |
| #define TREGS_OFFSET_NAME(num) \ |
| {.name = __stringify(tr##num), .offset = offsetof(struct pt_regs, tregs[num])} |
| #define REG_OFFSET_END {.name = NULL, .offset = 0} |
| |
| /* Query offset/name of register from its name/offset */ |
| extern int regs_query_register_offset(const char *name); |
| extern const char *regs_query_register_name(unsigned int offset); |
| |
| extern const struct pt_regs_offset regoffset_table[]; |
| |
| /** |
| * regs_get_register() - get register value from its offset |
| * @regs: pt_regs from which register value is gotten. |
| * @offset: offset number of the register. |
| * |
| * regs_get_register returns the value of a register. The @offset is the |
| * offset of the register in struct pt_regs address which specified by @regs. |
| * If @offset is bigger than MAX_REG_OFFSET, this returns 0. |
| */ |
| static inline unsigned long regs_get_register(struct pt_regs *regs, |
| unsigned int offset) |
| { |
| if (unlikely(offset > MAX_REG_OFFSET)) |
| return 0; |
| return *(unsigned long *)((unsigned long)regs + offset); |
| } |
| |
| /** |
| * regs_within_kernel_stack() - check the address in the stack |
| * @regs: pt_regs which contains kernel stack pointer. |
| * @addr: address which is checked. |
| * |
| * regs_within_kernel_stack() checks @addr is within the kernel stack page(s). |
| * If @addr is within the kernel stack, it returns true. If not, returns false. |
| */ |
| static inline int regs_within_kernel_stack(struct pt_regs *regs, |
| unsigned long addr) |
| { |
| return ((addr & ~(THREAD_SIZE - 1)) == |
| (kernel_stack_pointer(regs) & ~(THREAD_SIZE - 1))); |
| } |
| |
| /** |
| * regs_get_kernel_stack_nth() - get Nth entry of the stack |
| * @regs: pt_regs which contains kernel stack pointer. |
| * @n: stack entry number. |
| * |
| * regs_get_kernel_stack_nth() returns @n th entry of the kernel stack which |
| * is specified by @regs. If the @n th entry is NOT in the kernel stack, |
| * this returns 0. |
| */ |
| static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, |
| unsigned int n) |
| { |
| unsigned long *addr = (unsigned long *)kernel_stack_pointer(regs); |
| addr += n; |
| if (regs_within_kernel_stack(regs, (unsigned long)addr)) |
| return *addr; |
| else |
| return 0; |
| } |
| |
| struct perf_event; |
| struct perf_sample_data; |
| |
| extern void ptrace_triggered(struct perf_event *bp, int nmi, |
| struct perf_sample_data *data, struct pt_regs *regs); |
| |
| #define task_pt_regs(task) \ |
| ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE) - 1) |
| |
| static inline unsigned long profile_pc(struct pt_regs *regs) |
| { |
| unsigned long pc = regs->pc; |
| |
| if (virt_addr_uncached(pc)) |
| return CAC_ADDR(pc); |
| |
| return pc; |
| } |
| #define profile_pc profile_pc |
| |
| #include <asm-generic/ptrace.h> |
| #endif /* __KERNEL__ */ |
| |
| #endif /* __ASM_SH_PTRACE_H */ |