tools/testing/selftests/powerpc/ptrace/ptrace-perf-asm.S

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/powerpc/ptrace/ptrace-perf-asm.S

Extension

.S

Size

549 bytes

Lines

34

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

• ppc-asm.h

Detected Declarations

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

Annotated Snippet

#include <ppc-asm.h>

.global same_watch_addr_load
.global same_watch_addr_trap

FUNC_START(same_watch_addr_child)
	nop
same_watch_addr_load:
	ld 0,0(3)
	nop
same_watch_addr_trap:
	trap
	blr
FUNC_END(same_watch_addr_child)


.global perf_then_ptrace_load1
.global perf_then_ptrace_load2
.global perf_then_ptrace_trap

FUNC_START(perf_then_ptrace_child)
	nop
perf_then_ptrace_load1:
	ld 0,0(3)
perf_then_ptrace_load2:
	ld 0,0(4)
	nop
perf_then_ptrace_trap:
	trap
	blr
FUNC_END(perf_then_ptrace_child)

Annotation

• Immediate include surface: `ppc-asm.h`.
• 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.