2 #include <linux/errno.h>
3 #include <linux/kernel.h>
4 #include <linux/perf_event.h>
6 #include <linux/sched/task_stack.h>
7 #include <asm/perf_regs.h>
8 #include <asm/ptrace.h>
10 u64 perf_reg_value(struct pt_regs *regs, int idx)
12 if (WARN_ON_ONCE((u32)idx >= PERF_REG_ARM_MAX))
15 return regs->uregs[idx];
18 #define REG_RESERVED (~((1ULL << PERF_REG_ARM_MAX) - 1))
20 int perf_reg_validate(u64 mask)
22 if (!mask || mask & REG_RESERVED)
28 u64 perf_reg_abi(struct task_struct *task)
30 return PERF_SAMPLE_REGS_ABI_32;
33 void perf_get_regs_user(struct perf_regs *regs_user,
35 struct pt_regs *regs_user_copy)
37 regs_user->regs = task_pt_regs(current);
38 regs_user->abi = perf_reg_abi(current);