tools/perf/arch/powerpc/util/sym-handling.c

File Facts

System

Linux kernel

Corpus path

tools/perf/arch/powerpc/util/sym-handling.c

Extension

.c

Size

3283 bytes

Lines

144

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.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• dso.h
• symbol.h
• map.h
• probe-event.h
• probe-file.h

Detected Declarations

• function Copyright
• function arch__compare_symbol_names
• function arch__compare_symbol_names_n
• function arch__sym_update
• function arch__fix_tev_from_maps
• function arch__post_process_probe_trace_events
• function map__for_each_symbol

Annotated Snippet

else if (lep_offset) {
		if (pev->uprobes)
			tev->point.address += lep_offset;
		else
			tev->point.offset += lep_offset;
	}
}

#ifdef HAVE_LIBELF_SUPPORT
void arch__post_process_probe_trace_events(struct perf_probe_event *pev,
					   int ntevs)
{
	struct probe_trace_event *tev;
	struct map *map;
	struct symbol *sym = NULL;
	struct rb_node *tmp;
	int i = 0;

	map = get_target_map(pev->target, pev->nsi, pev->uprobes);
	if (!map || map__load(map) < 0)
		return;

	for (i = 0; i < ntevs; i++) {
		tev = &pev->tevs[i];
		map__for_each_symbol(map, sym, tmp) {
			if (map__unmap_ip(map, sym->start) == tev->point.address) {
				arch__fix_tev_from_maps(pev, tev, map, sym);
				break;
			}
		}
	}
}
#endif /* HAVE_LIBELF_SUPPORT */

#endif

Annotation

• Immediate include surface: `dso.h`, `symbol.h`, `map.h`, `probe-event.h`, `probe-file.h`.
• Detected declarations: `function Copyright`, `function arch__compare_symbol_names`, `function arch__compare_symbol_names_n`, `function arch__sym_update`, `function arch__fix_tev_from_maps`, `function arch__post_process_probe_trace_events`, `function map__for_each_symbol`.
• Atlas domain: Support Tooling And Documentation / tools.
• Implementation status: source implementation candidate.

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.