On Thu, Mar 31, 2022 at 6:29 AM Commit Bot <b...@cloudius-systems.com> wrote:
> From: Waldemar Kozaczuk <jwkozac...@gmail.com>
> Committer: Waldemar Kozaczuk <jwkozac...@gmail.com>
> Branch: master
>
> loader.py: add linear_mmap command
>
> Similarly to the patch that adds new pseudo file
> /sys/osv/memory/linear_maps,
> this one adds new loader.py command that can be used with gdb to display
> same information:
>
> (gdb) osv linear_mmap
> vaddr paddr size perm memattr name
> 8000000 8000000 10000 rwxp dev gic_dist
> 8010000 8010000 10000 rwxp dev gic_cpu
> 9000000 9000000 1000 rwxp dev pl011
> 9010000 9010000 1000 rwxp dev pl031
> 10000000 10000000 2eff0000 rwxp dev pci_mem
> 3eff0000 3eff0000 10000 rwxp dev pci_io
> 40000000 40000000 6d3000 rwxp normal kernel
> 4010000000 4010000000 10000000 rwxp dev pci_cfg
> ffff80000a000000 a000000 200 rwxp normal virtio_mmio_cfg
> ffff80000a000200 a000200 200 rwxp normal virtio_mmio_cfg
> ffff80000a000400 a000400 200 rwxp normal virtio_mmio_cfg
> ffff80000a000600 a000600 200 rwxp normal virtio_mmio_cfg
> ffff80000a000800 a000800 200 rwxp normal virtio_mmio_cfg
> ffff80000a000a00 a000a00 200 rwxp normal virtio_mmio_cfg
> ffff80000a000c00 a000c00 200 rwxp normal virtio_mmio_cfg
> ffff80000a000e00 a000e00 200 rwxp normal virtio_mmio_cfg
> ffff8000406d3000 406d3000 7f92d000 rwxp normal main
> ffff9000406d3000 406d3000 7f92d000 rwxp normal page
> ffffa000406d3000 406d3000 7f92d000 rwxp normal mempool
>
> Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com>
>
> ---
> diff --git a/scripts/loader.py b/scripts/loader.py
> --- a/scripts/loader.py
> +++ b/scripts/loader.py
> @@ -1643,11 +1643,40 @@ def invoke(self, args, from_tty):
> return
> gdb.write('%s\n'%target)
>
> +class osv_linear_mmap(gdb.Command):
> + def __init__(self):
> + gdb.Command.__init__(self, 'osv linear_mmap',
> + gdb.COMMAND_USER, gdb.COMPLETE_NONE)
> + def invoke(self, arg, for_tty):
> + l = str(gdb.lookup_global_symbol('mmu::linear_vma_set').value())
> + linear_vmas = re.findall('\[([0-9]+)\] = (0x[0-9a-zA-Z]+)', l)
> +
> + gdb.write("%16s %16s %8s %4s %7s %s\n" % ("vaddr", "paddr",
> "size", "perm", "memattr", "name"))
> +
> + char_ptr = gdb.lookup_type('char').pointer()
> + for desc in linear_vmas:
> + addr = desc[1]
> + vma = gdb.parse_and_eval('(struct mmu::linear_vma *)' + addr)
> +
> + vaddr = vma['_virt_addr']
> + paddr = vma['_phys_addr']
> + size = vma['_size']
> + if vma['_mem_attr'] == 0:
> + memattr = 'normal'
> + else:
> + memattr = 'dev'
> + name = vma['_name'].cast(char_ptr).string()
> +
> + # dispatch time ns ticks callout function
>
Wrongly-copied comment? :-)
> + gdb.write("%16x %16x %8x rwxp %7s %s\n" %
> + (vaddr, paddr, size, memattr, name))
> +
> osv()
> osv_heap()
> osv_memory()
> osv_waiters()
> osv_mmap()
> +osv_linear_mmap()
> osv_vma_find()
> osv_zfs()
> osv_syms()
>
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