tools/perf/arch/arm64/util/unwind-libunwind.c

Source file repositories/reference/linux-study-clean/tools/perf/arch/arm64/util/unwind-libunwind.c

File Facts

System
Linux kernel
Corpus path
tools/perf/arch/arm64/util/unwind-libunwind.c
Extension
.c
Size
345 bytes
Lines
18
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
#include <errno.h>

#ifndef REMOTE_UNWIND_LIBUNWIND
#include <libunwind.h>
#include "perf_regs.h"
#include "../../../util/unwind.h"
#endif
#include "../../../util/debug.h"

int LIBUNWIND__ARCH_REG_ID(int regnum)
{
	if (regnum < 0 || regnum >= PERF_REG_ARM64_EXTENDED_MAX)
		return -EINVAL;

	return regnum;
}

Annotation

Implementation Notes