51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_PERF_REGS_H
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#define _LINUX_PERF_REGS_H
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#include <linux/sched/task_stack.h>
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struct perf_regs {
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__u64 abi;
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struct pt_regs *regs;
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};
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#ifdef CONFIG_HAVE_PERF_REGS
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#include <asm/perf_regs.h>
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#ifndef PERF_REG_EXTENDED_MASK
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#define PERF_REG_EXTENDED_MASK 0
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#endif
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u64 perf_reg_value(struct pt_regs *regs, int idx);
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int perf_reg_validate(u64 mask);
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u64 perf_reg_abi(struct task_struct *task);
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void perf_get_regs_user(struct perf_regs *regs_user,
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struct pt_regs *regs);
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#else
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#define PERF_REG_EXTENDED_MASK 0
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static inline u64 perf_reg_value(struct pt_regs *regs, int idx)
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{
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return 0;
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}
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static inline int perf_reg_validate(u64 mask)
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{
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return mask ? -ENOSYS : 0;
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}
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static inline u64 perf_reg_abi(struct task_struct *task)
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{
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return PERF_SAMPLE_REGS_ABI_NONE;
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}
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static inline void perf_get_regs_user(struct perf_regs *regs_user,
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struct pt_regs *regs)
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{
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regs_user->regs = task_pt_regs(current);
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regs_user->abi = perf_reg_abi(current);
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}
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#endif /* CONFIG_HAVE_PERF_REGS */
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#endif /* _LINUX_PERF_REGS_H */
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