| f79a00874d415ba7e7fda01cf2eb76bf06e459a6 |
|
14-Nov-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: fix potential unaligned memory access.
1. It is reported that when elf section headers are malformed,
GetBuildIdFromNoteSection() aborts with SIGBUS. So fix it to
accept not 4 bytes aligned section data.
2. Fix potential unaligned memory access in ConvertBytesToValue().
Test: run simpleperf_unit_test.
Change-Id: I2e1612a6567978e0b526b2274377765ba2837ec2
/system/extras/simpleperf/read_elf.h
|
| dec43c18d06415a955b8f32355bca925be901905 |
|
30-Jul-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: print warning message when failed to read symbol table from elf file.
Change return type of read elf functions to ElfStatus, and print warning message
based on situation.
Add corresponding test.
Bug: 29193936
Change-Id: Ie449f8be34cb579962cb73f4be3df9e4997270ca
Test: run simpleperf_unit_test.
/system/extras/simpleperf/read_elf.h
|
| 3e4c5950f3aafb0bf66544468d98ee3ec26b705c |
|
27-Jul-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: use libevent in stat command.
Wrap libevent in IOEventLoop, use IOEventLoop in stat command.
Add corresponding tests.
Bug: http://b/30405638
Change-Id: I78b79e0eff1365ab46dde29c2a24a2def586af79
Test: run simpleperf_unit_test.
/system/extras/simpleperf/read_elf.h
|
| be7ec66eaa4f995bd9068637f7c7d5718173922c |
|
02-Mar-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: support building cts test.
1. build cts test libraries.
2. change tests to use tmpfile instead of perf.data.
3. support extracting testdata from cts test file.
Bug: 27387280
Change-Id: I7c5db77f3157d586d0c9beb446b247626e7cce36
/system/extras/simpleperf/read_elf.h
|
| b1a885b014540a2f7798b5a35ea0f0ec150d93ee |
|
15-Feb-2016 |
Yabin Cui <yabinc@google.com> |
simpleperf: report symbols of native libraries in apk file.
Changes included:
1. provide interface in read_apk.h to read build id and symbols.
2. report symbols of native libraries in apk file.
3. refactor code in read_elf.cpp and read_apk.cpp.
4. add verbose log.
5. add -o report_file_name option for report command.
6. add corresponding unit tests.
Bug: 26962895
Change-Id: I0d5398996e0c29dba4a6f5226692b758ca096bbd
/system/extras/simpleperf/read_elf.h
|
| f831e6d12ca2298cb34b155a9d91ef002d0482f3 |
|
02-Feb-2016 |
Than McIntosh <thanm@google.com> |
Support profiling of shared libs embedded in APKs.
Some APKs contain shared libraries that the linker handles
by mmap'ing directly from their APKs (if the library is
uncompressed and the proper manifest flag is set). With
this patch simpleperf now breaks out samples on a per-li
basis and reports the name of the lib within the APK.
Example output:
Cmdline: /system/xbin/simpleperf record -a sleep 30
Samples: 140672 of event 'cpu-cycles'
Event count: 84111474884
Overhead Command Pid Tid Shared Object
90.22% b_open_from_apk 19066 19066
/data/app/com.android.frameworks.coretests.install_jni_lib_open_from_apk-2/base.apk!lib/armeabi-v7a/libgcdstuff.so
4.85% b_open_from_apk 19066 19066
/data/app/com.android.frameworks.coretests.install_jni_lib_open_from_apk-2/base.apk!lib/armeabi-v7a/libframeworks_coretests_jni.so
1.19% simpleperf 19085 19085 /system/lib/libc.so
...
Bug: 22560619
Change-Id: I1e0f2e155e03b33935eac24e104c3fd7b9a7e33c
/system/extras/simpleperf/read_elf.h
|
| ffaa912ca48e87d25d516780c15cdd7c50de43db |
|
16-Jan-2016 |
Yabin Cui <yabinc@google.com> |
Simpleperf: support build for windows.
Change-Id: I31554f36ee97eb0ae27bda9b77e29410776925e2
/system/extras/simpleperf/read_elf.h
|
| 797116bfb9ad10d858086680c7465d65c399ef6e |
|
09-Dec-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: check if elf file paths are valid before reading them.
Reading invalid file paths can cause troubles. For example,
reading /dev/zero can eat all memory.
Bug: 25194400
Change-Id: I4de17f4f9200a43b50a4efe4c42a6fd9eaec1ba6
/system/extras/simpleperf/read_elf.h
|
| 547c60e4dd29c5788d5948ad348acf33a55d6ed6 |
|
13-Oct-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: fix some unknown symbols for report result.
Using debug shared libraries in /usr/lib/debug on linux host.
Match ip addresses with symbols by symbols' virtual addresses instead of
file offsets in elf file. Because symbols' file offsets in debug shared
libraries are different from those in original shared libraries.
Fix overlapped maps.
Bug: 24716851
Change-Id: I9cb64958c4de5c7a6c77c3febc5f689cf2df650f
/system/extras/simpleperf/read_elf.h
|
| 39d3caeb60a913276a2bbaa35f6a28dc3284eb52 |
|
14-Jul-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: support --vmlinux option in report command.
Bug: 22179177
Change-Id: I633da55c6bfcb106d69de9bda6b44bce24ffca8e
/system/extras/simpleperf/read_elf.h
|
| 638c558339b7f1ae0ed95f64bcf7dbc5b238ed83 |
|
02-Jul-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: check build id in report command.
1. refactor BuildId type.
2. check build id before parsing symbols in report command.
Bug: 22179177
Change-Id: Iefc797a88d4a168e109db786105120c8d6914369
/system/extras/simpleperf/read_elf.h
|
| a5bdf0a31dc6e225c10b82840903de49535bf8fb |
|
23-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: exclude meaningless labels in aarch64.
Also remove the use of <elf.h> because of its conflicts with llvm.
Bug: 19483574
Change-Id: I2cc6fcb3429aa986101e214dc39fabd920f254dd
/system/extras/simpleperf/read_elf.h
|
| 2c17e0db003baeb044bf3e13175f5d00c414c3fc |
|
11-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: parse prefixed symbol of linker.
Bug: 19483574
Change-Id: I2597d4a91fd9a6cfc5c15c8b637dc4ba5213ee56
/system/extras/simpleperf/read_elf.h
|
| b378355f34b2b585eaf2be262bcd9baae9f3d36a |
|
11-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: improve symbol parsing.
Support c++ symbol demangling, and add option to disable it.
Add option to set symfs dir, so it can report on host.
Add label symbols, add add symbol length fixing for it.
Add two hacks about arm elf symbol parsing.
Bug: 19483574
Change-Id: I300d6c007c8634db382d0a50627b9cde1502df89
/system/extras/simpleperf/read_elf.h
|
| ec12ed9010128483993a87d68edc02d3a89d56cf |
|
08-Jun-2015 |
Yabin Cui <yabinc@google.com> |
Simpleperf: support symbol parsing in report command.
Also fix the storage of ProcessEntry.
Bug: 19483574
Change-Id: I2182a804f6ecbd28e7aa3c1a38a6f19b86f583c9
/system/extras/simpleperf/read_elf.h
|
| 8f6225147c5b6cb2159a7f5cb0dab952ee0759df |
|
06-May-2015 |
Yabin Cui <yabinc@google.com> |
Dump build_id feature in `simpleperf record`.
Bug: 19483574
Change-Id: Ie2acd8a157bca9ad3c01a2e4b37e139aba89670f
/system/extras/simpleperf/read_elf.h
|