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Use the 2-space configuration by default and disable any formatting for
the demo/ subdirectory. The following command was used to generate this
change:
$ find . \( -name \*.cpp -o -name \*.h \) -exec clang-format \
--style=file -i {} \;
Test: mm
Change-Id: I89ec1f18f6e352f40cfa1a770087f3b586b1d7cb
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Simpleperf checks if a path is JIT symfile by looking for a colon
symbol in it. But a normal path on windows can contain colon symbols.
Thus two windows tests are broken. This CL fixs them by adding a function in
JITDebugReader class to check JIT symfile paths.
Also fix python test TestReportLib.test_merge_java_methods. It was broken
by report_lib_interface.cpp dropping support for old jit symfile paths.
This CL added the support back.
Also add a new test TestReportLib.test_jited_java_methods to test new
jit symfile path.
Bug: 167604389
Test: run simpleperf_unit_test.
Test: run test.py.
Change-Id: Ic0f69d224069f708fe20d79d0ce61cf63bd17e5f
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1. Separate app cache and zygote cache in ElfDso::GetReportPath().
2. Use GetReportPath() in --dsos option in report cmd.
So "[JIT app cache]" can be used to filter binaries.
Bug: 159155297
Test: run simpleperf_unit_test
Change-Id: Idc52bd1b2496aae30721a224d93621f776f2ae03
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Bug: 159155297
Test: run simpleperf_unit_test
Change-Id: I187a4bcf5d45d355abb153e20ba44028a842b2b9
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Currently, each jit symfile is dumped to a distinct temporary file. This creates
many temporary files, having two drawbacks:
1. It leaves many junk files if simpleperf is killed in the middle.
2. The names of the temporary files change in different recording files,
making them harder to compare.
This CL fixes it by making changes below:
1. Store jit symfiles in a single file. The location of a symfile is
passed via a special path format: <file_path>:<file_start>-<file_end>.
So the unwinder and ElfFile class can read it correctly.
2. Add Dso::GetReportPath() to give a unified name for jit symfiles. And
use it in different reporting methods.
Also split JITDebugReader::ReadProcess() into smaller functions.
Bug: 159155297
Test: run simpleperf_unit_test
Test: run simpleperf manually
Change-Id: I37cd1888b855b4b88bb83e453e39230b96fb304f
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This reverts commit 95d8395bcaf09d7079fe0fbbf7514631990ae47d.
The workaround isn't needed after
https://android-review.googlesource.com/c/platform/art/+/1156360.
Bug: none
Test: run simpleperf_unit_test.
Change-Id: I2ec6abbd2cdf48329b3a2bd8c100283afa5dda4a
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To fix a libunwindstack problem, ART appends new debug entries to the
end of the debug entry list, insteading prepending to it. This breaks
CtsSimpleperfTestCases.
This CL adds a temporary work around in simpleperf, so we have time
to try other fixes in ART.
Bug: 143375574
Test: run simpleperf_unit_test
Change-Id: I5d73792996fb89d22a664b982e667ba0a4ee8276
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1. Change magic field and sizeof_entry check for JITDescriptor.
2. Use seqlock field in JITCodeEntryV2 to check its valid.
3. Allow but skip entry with symfile_size = 0 in V2.
Bug: 141558390
Test: run simpleperf_unit_test.
Change-Id: I30e214597cec78c73492fdfeac1f9766b775f0e3
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On Android Q, ART extracts dex files in apk files directly into memory,
and names it using prctl(). The kernel doesn't generate a new mmap record
for it. So if simpleperf is started before the app, it can't receive
the correct mmap info of dex files extracted into memory. Thus making
missing symbols and broken callchains.
So work around this by dumping the mmap info in JITDebugReader.
Bug: 134081613
Test: run simpleperf manually.
Test: run simpleperf_unit_test.
Test: run test.py TestCppDemoJniCall.test_smoke.
Change-Id: I995573309816c84729e82e58148890a76725ae36
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Test: compile
Bug: 119313545
Change-Id: I664fb32522d01909c603d7b903475c4e9aea9223
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To save time, simpleperf doesn't check JIT debug info update each time
unwinding a sample. Instead, it checks JIT debug info update every
100ms. So some samples (about 1%) can be failed to unwind because of
lacking the latest JIT debug info.
This patch fixes it by using monotonic timestamps to sync JIT debug info
and samples. It contains below changes:
1. Use monotonic timestamp for records by default if that is supported.
2. Add a priority queue in JITDebugReader to sort existing JIT debug
info by timestamp. Each time reading new JIT debug info from remote
processes, it is put in the queue.
3. Each time processing a record, JITDebugReader flushes all debug info
in the queue generated before the record. So a record only sees JIT
debug info generated before it.
4. If unwinding a sample fails because of incomplete JIT debug info,
read newest debug info from the process and retry unwinding.
Bug: 110923759
Test: run simpleperf manually and check no unwinding fails because
Test: of lacking the latest JIT debug info.
Change-Id: I769b72a3345f917e5c0f9a9936d19bca536e1153
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It contains below changes:
1. Support monitoring multiple processes in JITDebugReader.
2. Switch from 100ms period to 100ms interval when scanning JIT debug
info changes.
3. Limit read entry length by seqlock different instead of a fixed
value.
4. Support disable/enable periodic events in IOEventLoop.
5. Remove duplicated dex file offsets in DexFileDso.
6. Enable JITDebugReader for recording on Android P.
7. Remove " (deleted)" suffix in filenames of maps, because some vdex
files in map file have this suffix.
Bug: http://b/79118393
Test: run `simpleperf record -a` manually.
Test: run simpleperf_unit_test.
Change-Id: Ia398ddd7bc74cbc5fdca6caa6f548a62447d9729
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ART may extract dex files into memory from zip files.
This CL supports getting symbols from extracted dex files in below steps:
1. Change map names in "/dev/ashmem/dalvik-xxx extracted in memory
from yyy.apk" format into yyy.apk!/xxx format.
2. Support dumping dex files in yyy.apk!/xxx format in JITDebugReader.
3. Support reading symbols from dex files in yyy.apk!/xxx format
in DexFileDso.
Also refactor FileHelper to return android::base::unique_fd,
refactor ArchiveHelper to wrap all operations to zip files.
Bug: 79118393
Test: run simpleperf_unit_test.
Test: run simpleperf on an app containing extracted dex files.
Change-Id: I65dbd98843f2d47272ea72935fd3d2b6d6e8ae40
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To convert from a dex_pc (returned by libunwindstack) to a symbol name,
we need below things:
1. The mapping info of the vdex file containing the dex_pc.
2. The offsets of dex files in the vdex file.
So make below changes:
1. Record none executable maps when profiling java code.
2. Refactor dso code to add a new type for dex file, using DexFileDso
to store dex file offsets in a vdex file, and load symbols from that
vdex file.
3. Add read_dex_file.cpp to read java symbols using libdexfile.
4. Change the format of file section in record_file_format.h, to store
dex file offsets in vdex files.
Bug: http://b/73126888
Bug: http://b/77236599
Test: Run simpleperf to profile several apps manually, can see
Test: callstacks of both java code and native code.
Test: Run simpleperf_unit_test.
Change-Id: I08005a03beb3df1a70db034bc463f555934856ba
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When profiling an app on Android >= P, simpleperf reads new JIT/dex
symfiles exported by the app's __jit_debug_descriptor and
__dex_debug_descriptor every 100ms. It also saves new JIT symfiles
in temporary files for unwinding/symbolization later. This is a
preparation to support profiling JITed/interpreted Java code.
Bug: http://b/73127105
Test: run simpleperf_unit_test.
Test: run simpleperf manually.
Change-Id: I0a3a483a61e7388e51627a7779547016b0b268a0
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