Файловый менеджер

Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/sh/include/asm/ptrace.h

Назад
/* SPDX-License-Identifier: GPL-2.0 / / * Copyright (C) 1999, 2000 Niibe Yutaka / #ifndef __ASM_SH_PTRACE_H #define __ASM_SH_PTRACE_H #include <linux/stringify.h> #include <linux/stddef.h> #include <linux/thread_info.h> #include <asm/addrspace.h> #include <asm/page.h> #include <uapi/asm/ptrace.h> #define user_mode(regs) (((regs)->sr & 0x40000000)==0) #define kernel_stack_pointer(_regs) ((unsigned long)(_regs)->regs[15]) static inline unsigned long instruction_pointer(struct pt_regs regs) { return regs->pc; } static inline void instruction_pointer_set(struct pt_regs regs, unsigned long val) { regs->pc = val; } static inline unsigned long frame_pointer(struct pt_regs regs) { return regs->regs[14]; } static inline unsigned long user_stack_pointer(struct pt_regs regs) { return regs->regs[15]; } static inline void user_stack_pointer_set(struct pt_regs regs, unsigned long val) { regs->regs[15] = val; } #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, 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; } #endif /* __ASM_SH_PTRACE_H */

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