Revision: 12469
Author: [email protected]
Date: Thu Sep 6 08:01:20 2012
Log: Add support for running low level profiler on Android.
[email protected]
Review URL: https://chromiumcodereview.appspot.com/10908122
http://code.google.com/p/v8/source/detail?r=12469
Added:
/branches/bleeding_edge/tools/android-ll-prof.sh
Modified:
/branches/bleeding_edge/src/flag-definitions.h
/branches/bleeding_edge/src/platform-linux.cc
/branches/bleeding_edge/src/platform-openbsd.cc
/branches/bleeding_edge/tools/ll_prof.py
=======================================
--- /dev/null
+++ /branches/bleeding_edge/tools/android-ll-prof.sh Thu Sep 6 08:01:20
2012
@@ -0,0 +1,69 @@
+#!/bin/bash
+# Copyright 2012 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials provided
+# with the distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Runs d8 with the given arguments on the device under 'perf' and
+# processes the profiler trace and v8 logs using ll_prof.py.
+#
+# Usage:
+# > ./tools/android-ll-prof.sh (debug|release) "args to d8" "args to
ll_prof.py"
+#
+# The script creates deploy directory deploy/data/local/tmp/v8, copies
there
+# the d8 binary either from out/android_arm.release or
out/android_arm.debug,
+# and then sync the deploy directory with /data/local/tmp/v8 on the device.
+# You can put JS files in the deploy directory before running the script.
+# Note: $ANDROID_NDK_ROOT must be set.
+
+MODE=$1
+RUN_ARGS=$2
+LL_PROF_ARGS=$3
+
+BASE=`cd $(dirname "$0")/..; pwd`
+DEPLOY="$BASE/deploy"
+
+set +e
+mkdir -p "$DEPLOY/data/local/tmp/v8"
+
+cp "$BASE/out/android_arm.$MODE/d8" "$DEPLOY/data/local/tmp/v8/d8"
+
+adb -p "$DEPLOY" sync data
+
+adb shell "cd /data/local/tmp/v8;\
+ perf record -R -e cycles -c 10000 -f -i \
+ ./d8 --ll_prof --gc-fake-mmap=/data/local/tmp/__v8_gc__
$RUN_ARGS"
+
+adb pull /data/local/tmp/v8/v8.log .
+adb pull /data/local/tmp/v8/v8.log.ll .
+adb pull /data/perf.data .
+
+ARCH=arm-linux-androideabi-4.4.3
+TOOLCHAIN="${ANDROID_NDK_ROOT}/toolchains/$ARCH/prebuilt/linux-x86/bin"
+
+$BASE/tools/ll_prof.py --host-root="$BASE/deploy" \
+ --gc-fake-mmap=/data/local/tmp/__v8_gc__ \
+
--objdump="$TOOLCHAIN/arm-linux-androideabi-objdump" \
+ $LL_PROF_ARGS
=======================================
--- /branches/bleeding_edge/src/flag-definitions.h Wed Sep 5 09:06:07 2012
+++ /branches/bleeding_edge/src/flag-definitions.h Thu Sep 6 08:01:20 2012
@@ -633,7 +633,8 @@
"Update sliding state window counters.")
DEFINE_string(logfile, "v8.log", "Specify the name of the log file.")
DEFINE_bool(ll_prof, false, "Enable low-level linux profiler.")
-
+DEFINE_string(gc_fake_mmap, "/tmp/__v8_gc__",
+ "Specify the name of the file for fake gc mmap used in
ll_prof")
//
// Disassembler only flags
=======================================
--- /branches/bleeding_edge/src/platform-linux.cc Thu Aug 2 03:03:21 2012
+++ /branches/bleeding_edge/src/platform-linux.cc Thu Sep 6 08:01:20 2012
@@ -510,9 +510,6 @@
free(lib_name);
fclose(fp);
}
-
-
-static const char kGCFakeMmap[] = "/tmp/__v8_gc__";
void OS::SignalCodeMovingGC() {
@@ -525,7 +522,7 @@
// by the kernel and allows us to synchronize V8 code log and the
// kernel log.
int size = sysconf(_SC_PAGESIZE);
- FILE* f = fopen(kGCFakeMmap, "w+");
+ FILE* f = fopen(FLAG_gc_fake_mmap, "w+");
void* addr = mmap(OS::GetRandomMmapAddr(),
size,
PROT_READ | PROT_EXEC,
=======================================
--- /branches/bleeding_edge/src/platform-openbsd.cc Fri Apr 13 07:08:31 2012
+++ /branches/bleeding_edge/src/platform-openbsd.cc Thu Sep 6 08:01:20 2012
@@ -321,9 +321,6 @@
free(lib_name);
fclose(fp);
}
-
-
-static const char kGCFakeMmap[] = "/tmp/__v8_gc__";
void OS::SignalCodeMovingGC() {
@@ -336,7 +333,7 @@
// by the kernel and allows us to synchronize V8 code log and the
// kernel log.
int size = sysconf(_SC_PAGESIZE);
- FILE* f = fopen(kGCFakeMmap, "w+");
+ FILE* f = fopen(FLAG_gc_fake_mmap, "w+");
void* addr = mmap(NULL, size, PROT_READ | PROT_EXEC, MAP_PRIVATE,
fileno(f), 0);
ASSERT(addr != MAP_FAILED);
=======================================
--- /branches/bleeding_edge/tools/ll_prof.py Fri Jan 13 02:23:19 2012
+++ /branches/bleeding_edge/tools/ll_prof.py Thu Sep 6 08:01:20 2012
@@ -68,15 +68,9 @@
"""
-# Must match kGcFakeMmap.
-V8_GC_FAKE_MMAP = "/tmp/__v8_gc__"
-
JS_ORIGIN = "js"
JS_SNAPSHOT_ORIGIN = "js-snapshot"
-OBJDUMP_BIN = disasm.OBJDUMP_BIN
-
-
class Code(object):
"""Code object."""
@@ -639,7 +633,7 @@
# Read null-terminated filename.
filename = self.trace[offset + self.header_size +
ctypes.sizeof(mmap_info):
offset + header.size]
- mmap_info.filename = filename[:filename.find(chr(0))]
+ mmap_info.filename = HOST_ROOT + filename[:filename.find(chr(0))]
return mmap_info
def ReadSample(self, header, offset):
@@ -858,6 +852,15 @@
default=False,
action="store_true",
help="no auxiliary messages [default: %default]")
+ parser.add_option("--gc-fake-mmap",
+ default="/tmp/__v8_gc__",
+ help="gc fake mmap file [default: %default]")
+ parser.add_option("--objdump",
+ default="/usr/bin/objdump",
+ help="objdump tool to use [default: %default]")
+ parser.add_option("--host-root",
+ default="",
+ help="Path to the host root [default: %default]")
options, args = parser.parse_args()
if not options.quiet:
@@ -869,6 +872,14 @@
print "V8 log: %s, %s.ll (no snapshot)" % (options.log, options.log)
print "Perf trace file: %s" % options.trace
+ V8_GC_FAKE_MMAP = options.gc_fake_mmap
+ HOST_ROOT = options.host_root
+ if os.path.exists(options.objdump):
+ disasm.OBJDUMP_BIN = options.objdump
+ OBJDUMP_BIN = options.objdump
+ else:
+ print "Cannot find %s, falling back to default objdump" %
options.objdump
+
# Stats.
events = 0
ticks = 0
@@ -905,7 +916,7 @@
if header.type == PERF_RECORD_MMAP:
start = time.time()
mmap_info = trace_reader.ReadMmap(header, offset)
- if mmap_info.filename == V8_GC_FAKE_MMAP:
+ if mmap_info.filename == HOST_ROOT + V8_GC_FAKE_MMAP:
log_reader.ReadUpToGC()
else:
library_repo.Load(mmap_info, code_map, options)
--
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