tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S

File Facts

System

Linux kernel

Corpus path

tools/perf/tests/shell/coresight/asm_pure_loop/asm_pure_loop.S

Extension

.S

Size

395 bytes

Lines

31

Domain

Support Tooling And Documentation

Bucket

tools

Inferred role

Support Tooling And Documentation: tools

Status

atlas-only

Why This File Exists

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

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

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

.globl _start
_start:
	mov	x0, 0x0000ffff
	mov	x1, xzr
loop:
	nop
	nop
	cbnz	x1, noskip
	nop
	nop
	adrp	x2, skip
	add 	x2, x2, :lo12:skip
	br	x2
	nop
	nop
noskip:
	nop
	nop
skip:
	sub	x0, x0, 1
	cbnz	x0, loop

	mov	x0, #0
	mov	x8, #93 // __NR_exit syscall
	svc	#0

.section .note.GNU-stack, "", @progbits

Annotation

• Atlas domain: Support Tooling And Documentation / tools.
• Implementation status: atlas-only.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.