scripts/dtc/libfdt/fdt_sw.c

File Facts

System

Linux kernel

Corpus path

scripts/dtc/libfdt/fdt_sw.c

Extension

.c

Size

8671 bytes

Lines

385

Domain

Support Tooling And Documentation

Bucket

scripts

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

• libfdt_env.h
• fdt.h
• libfdt.h
• libfdt_internal.h

Detected Declarations

• function Copyright
• function fdt_add_reservemap_entry
• function fdt_begin_node
• function sw_flags
• function fdt_create_with_flags
• function fdt_create
• function fdt_resize
• function fdt_add_reservemap_entry
• function fdt_finish_reservemap
• function fdt_begin_node
• function fdt_end_node
• function fdt_add_string_
• function fdt_del_last_string_
• function fdt_find_add_string_
• function fdt_property_placeholder
• function fdt_property
• function fdt_finish

Annotated Snippet

if (tag == FDT_PROP) {
			struct fdt_property *prop =
				fdt_offset_ptr_w_(fdt, offset);
			int nameoff;

			nameoff = fdt32_to_cpu(prop->nameoff);
			nameoff += fdt_size_dt_strings(fdt);
			prop->nameoff = cpu_to_fdt32(nameoff);
		}
		offset = nextoffset;
	}
	if (nextoffset < 0)
		return nextoffset;

	/* Finally, adjust the header */
	fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));

	/* And fix up fields that were keeping intermediate state. */
	fdt_set_last_comp_version(fdt, FDT_LAST_COMPATIBLE_VERSION);
	fdt_set_magic(fdt, FDT_MAGIC);

	return 0;
}

Annotation

• Immediate include surface: `libfdt_env.h`, `fdt.h`, `libfdt.h`, `libfdt_internal.h`.
• Detected declarations: `function Copyright`, `function fdt_add_reservemap_entry`, `function fdt_begin_node`, `function sw_flags`, `function fdt_create_with_flags`, `function fdt_create`, `function fdt_resize`, `function fdt_add_reservemap_entry`, `function fdt_finish_reservemap`, `function fdt_begin_node`.
• Atlas domain: Support Tooling And Documentation / scripts.
• 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.