Viewing file:  perf_regs.h (1.05 KB) -rw-r--r--
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_PERF_REGS_H
#define _LINUX_PERF_REGS_H
#include <linux/sched/task_stack.h>
struct perf_regs {
__u64 abi;
struct pt_regs *regs;
};
#ifdef CONFIG_HAVE_PERF_REGS
#include <asm/perf_regs.h>
#ifndef PERF_REG_EXTENDED_MASK
#define PERF_REG_EXTENDED_MASK 0
#endif
u64 perf_reg_value(struct pt_regs *regs, int idx);
int perf_reg_validate(u64 mask);
u64 perf_reg_abi(struct task_struct *task);
void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs);
#else
#define PERF_REG_EXTENDED_MASK 0
static inline u64 perf_reg_value(struct pt_regs *regs, int idx)
{
return 0;
}
static inline int perf_reg_validate(u64 mask)
{
return mask ? -ENOSYS : 0;
}
static inline u64 perf_reg_abi(struct task_struct *task)
{
return PERF_SAMPLE_REGS_ABI_NONE;
}
static inline void perf_get_regs_user(struct perf_regs *regs_user,
struct pt_regs *regs)
{
regs_user->regs = task_pt_regs(current);
regs_user->abi = perf_reg_abi(current);
}
#endif /* CONFIG_HAVE_PERF_REGS */
#endif /* _LINUX_PERF_REGS_H */
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