tools/perf/trace/beauty/mremap_flags.sh

File Facts

System

Linux kernel

Corpus path

tools/perf/trace/beauty/mremap_flags.sh

Extension

.sh

Size

573 bytes

Lines

19

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

#!/bin/sh
# SPDX-License-Identifier: LGPL-2.1

if [ $# -ne 1 ] ; then
	linux_header_dir=tools/include/uapi/linux
else
	linux_header_dir=$1
fi

linux_mman=${linux_header_dir}/mman.h

printf "static const char *mremap_flags[] = {\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MREMAP_([[:alnum:]_]+)[[:space:]]+((0x)?[[:xdigit:]]+)[[:space:]]*.*'
grep -E -q $regex ${linux_mman} && \
(grep -E $regex ${linux_mman} | \
	sed -r "s/$regex/\2 \1 \1 \1 \2/g"	| \
	xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef MREMAP_%s\n#define MREMAP_%s %s\n#endif\n")
printf "};\n"

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.