scripts/gdb/linux/xarray.py

Source file repositories/reference/linux-study-clean/scripts/gdb/linux/xarray.py

File Facts

System
Linux kernel
Corpus path
scripts/gdb/linux/xarray.py
Extension
.py
Size
636 bytes
Lines
29
Domain
Support Tooling And Documentation
Bucket
scripts
Inferred role
Support Tooling And Documentation: scripts
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.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
#
#  Xarray helpers
#
# Copyright (c) 2025 Broadcom
#
# Authors:
#  Florian Fainelli <florian.fainelli@broadcom.com>

import gdb

from linux import utils
from linux import constants

def xa_is_internal(entry):
    ulong_type = utils.get_ulong_type()
    return ((entry.cast(ulong_type) & 3) == 2)

def xa_mk_internal(v):
    return ((v << 2) | 2)

def xa_is_zero(entry):
    ulong_type = utils.get_ulong_type()
    return entry.cast(ulong_type) == xa_mk_internal(257)

def xa_is_node(entry):
    ulong_type = utils.get_ulong_type()
    return xa_is_internal(entry) and (entry.cast(ulong_type) > 4096)

Annotation

Implementation Notes