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CodeLinaro
public-release-test-restored
platform
vendor
qcom-opensource
tools
Commits
b4fa595a
Commit
b4fa595a
authored
8 years ago
by
Linux Build Service Account
Committed by
Gerrit - the friendly Code Review server
8 years ago
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Merge "lrdp_v2:pagetracking.py changes for kernel 4.4"
parents
5eb01667
6f8bf13d
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1 changed file
linux-ramdump-parser-v2/parsers/pagetracking.py
+52
-16
52 additions, 16 deletions
linux-ramdump-parser-v2/parsers/pagetracking.py
with
52 additions
and
16 deletions
linux-ramdump-parser-v2/parsers/pagetracking.py
+
52
−
16
View file @
b4fa595a
# Copyright (c) 2012,2014-2015 The Linux Foundation. All rights reserved.
# Copyright (c) 2012,2014-2015
,2017
The Linux Foundation. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 and
...
...
@@ -13,11 +13,13 @@ from print_out import print_out_str
from
parser_util
import
register_parser
,
RamParser
from
mm
import
pfn_to_page
,
page_buddy
@register_parser
(
'
--print-pagetracking
'
,
'
print page tracking information (if available)
'
)
class
PageTracking
(
RamParser
):
def
parse
(
self
):
if
not
self
.
ramdump
.
is_config_defined
(
'
CONFIG_PAGE_OWNER
'
):
print_out_str
(
'
CONFIG_PAGE_OWNER not defined
'
)
return
min_pfn_addr
=
self
.
ramdump
.
address_of
(
'
min_low_pfn
'
)
...
...
@@ -27,18 +29,37 @@ class PageTracking(RamParser):
max_pfn
=
self
.
ramdump
.
read_word
(
max_pfn_addr
)
+
(
self
.
ramdump
.
phys_offset
>>
12
)
order_offset
=
self
.
ramdump
.
field_offset
(
'
struct page
'
,
'
order
'
)
flags_offset
=
self
.
ramdump
.
field_offset
(
'
struct page
'
,
'
flags
'
)
trace_offset
=
self
.
ramdump
.
field_offset
(
'
struct page
'
,
'
trace
'
)
nr_entries_offset
=
self
.
ramdump
.
field_offset
(
'
struct stack_trace
'
,
'
nr_entries
'
)
trace_entries_offset
=
self
.
ramdump
.
field_offset
(
'
struct page
'
,
'
trace_entries
'
)
if
(
self
.
ramdump
.
kernel_version
>=
(
3
,
19
,
0
)):
mem_section
=
self
.
ramdump
.
read_word
(
'
mem_section
'
)
trace_offset
=
0
nr_entries_offset
=
0
trace_entries_offset
=
0
offset
=
0
struct_holding_trace_entries
=
0
trace_entry_size
=
self
.
ramdump
.
sizeof
(
"
unsigned long
"
)
if
(
self
.
ramdump
.
kernel_version
<=
(
3
,
19
,
0
)):
trace_offset
=
self
.
ramdump
.
field_offset
(
'
struct page
'
,
'
trace
'
)
nr_entries_offset
=
self
.
ramdump
.
field_offset
(
'
struct stack_trace
'
,
'
nr_entries
'
)
trace_entries_offset
=
self
.
ramdump
.
field_offset
(
'
struct page
'
,
'
trace_entries
'
)
else
:
page_ext_offset
=
self
.
ramdump
.
field_offset
(
'
struct mem_section
'
,
'
page_ext
'
)
trace_offset
=
self
.
ramdump
.
field_offset
(
'
struct page_ext
'
,
'
trace
'
)
trace_entries_offset
=
self
.
ramdump
.
field_offset
(
'
struct page_ext
'
,
'
trace_entries
'
)
nr_entries_offset
=
self
.
ramdump
.
field_offset
(
'
struct page_ext
'
,
'
nr_entries
'
)
mem_section_size
=
self
.
ramdump
.
sizeof
(
"
struct mem_section
"
)
page_ext_size
=
self
.
ramdump
.
sizeof
(
"
struct page_ext
"
)
out_tracking
=
self
.
ramdump
.
open_file
(
'
page_tracking.txt
'
)
out_frequency
=
self
.
ramdump
.
open_file
(
'
page_frequency.txt
'
)
sorted_pages
=
{}
trace_entry_size
=
self
.
ramdump
.
sizeof
(
"
unsigned long
"
)
for
pfn
in
range
(
min_pfn
,
max_pfn
):
page
=
pfn_to_page
(
self
.
ramdump
,
pfn
)
...
...
@@ -46,19 +67,34 @@ class PageTracking(RamParser):
# validate this page is free
if
page_buddy
(
self
.
ramdump
,
page
):
continue
nr_trace_entries
=
self
.
ramdump
.
read_int
(
page
+
trace_offset
+
nr_entries_offset
)
if
(
self
.
ramdump
.
kernel_version
<=
(
3
,
19
,
0
)):
nr_trace_entries
=
self
.
ramdump
.
read_int
(
page
+
trace_offset
+
nr_entries_offset
)
struct_holding_trace_entries
=
page
else
:
phys
=
pfn
<<
12
if
phys
is
None
or
phys
is
0
:
continue
offset
=
phys
>>
30
mem_section_0_offset
=
(
mem_section
+
(
offset
*
mem_section_size
))
page_ext
=
self
.
ramdump
.
read_word
(
mem_section_0_offset
+
page_ext_offset
)
temp_page_ext
=
page_ext
+
(
pfn
*
page_ext_size
)
nr_trace_entries
=
self
.
ramdump
.
read_int
(
temp_page_ext
+
nr_entries_offset
)
struct_holding_trace_entries
=
temp_page_ext
if
nr_trace_entries
<=
0
or
nr_trace_entries
>
16
:
continue
out_tracking
.
write
(
'
PFN 0x{0:x} page 0x{1:x}
\n
'
.
format
(
pfn
,
page
))
out_tracking
.
write
(
'
PFN 0x{0:x} page 0x{1:x}
\n
'
.
format
(
pfn
,
page
))
alloc_str
=
''
for
i
in
range
(
0
,
nr_trace_entries
):
addr
=
self
.
ramdump
.
read_word
(
page
+
trace_entries_offset
+
i
*
trace_entry_size
)
struct_holding_trace_entries
+
trace_entries_offset
+
i
*
trace_entry_size
)
if
addr
==
0
:
break
...
...
@@ -66,8 +102,8 @@ class PageTracking(RamParser):
if
look
is
None
:
break
symname
,
offset
=
look
unwind_dat
=
'
[<{0:x}>] {1}+0x{2:x}
\n
'
.
format
(
addr
,
symname
,
offset
)
unwind_dat
=
'
[<{0:x}>] {1}+0x{2:x}
\n
'
.
format
(
addr
,
symname
,
offset
)
out_tracking
.
write
(
unwind_dat
)
alloc_str
=
alloc_str
+
unwind_dat
...
...
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