Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263# SPDX-License-Identifier: GPL-2.0## Copyright (c) 2023 MediaTek Inc.## Authors:# Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>#
import gdbimport refrom linux import lists, utils, stackdepot, constants, mm
if constants.LX_CONFIG_MMU: vmap_area_type = utils.CachedType('struct vmap_area') vmap_area_ptr_type = vmap_area_type.get_type().pointer()
def is_vmalloc_addr(x): pg_ops = mm.page_ops().ops addr = pg_ops.kasan_reset_tag(x) return addr >= pg_ops.VMALLOC_START and addr < pg_ops.VMALLOC_END
class LxVmallocInfo(gdb.Command): """Show vmallocinfo"""
def __init__(self): super(LxVmallocInfo, self).__init__("lx-vmallocinfo", gdb.COMMAND_DATA)
def invoke(self, arg, from_tty): if not constants.LX_CONFIG_MMU: raise gdb.GdbError("Requires MMU support")
nr_vmap_nodes = gdb.parse_and_eval('nr_vmap_nodes') for i in range(0, nr_vmap_nodes): vn = gdb.parse_and_eval('&vmap_nodes[%d]' % i) for vmap_area in lists.list_for_each_entry(vn['busy']['head'], vmap_area_ptr_type, "list"): if not vmap_area['vm']: gdb.write("0x%x-0x%x %10d vm_map_ram\n" % (vmap_area['va_start'], vmap_area['va_end'], vmap_area['va_end'] - vmap_area['va_start'])) continue v = vmap_area['vm'] gdb.write("0x%x-0x%x %10d" % (v['addr'], v['addr'] + v['size'], v['size'])) if v['caller']: gdb.write(" %s" % str(v['caller']).split(' ')[-1]) if v['nr_pages']: gdb.write(" pages=%d" % v['nr_pages']) if v['phys_addr']: gdb.write(" phys=0x%x" % v['phys_addr']) if v['flags'] & constants.LX_VM_IOREMAP: gdb.write(" ioremap") if v['flags'] & constants.LX_VM_ALLOC: gdb.write(" vmalloc") if v['flags'] & constants.LX_VM_MAP: gdb.write(" vmap") if v['flags'] & constants.LX_VM_USERMAP: gdb.write(" user") if v['flags'] & constants.LX_VM_DMA_COHERENT: gdb.write(" dma-coherent") if is_vmalloc_addr(v['pages']): gdb.write(" vpages") gdb.write("\n")
LxVmallocInfo()