tools: fix run-valgrind.py script

The script had a dependency on the copy of valgrind that is bundled with V8 but that only gets checked out when doing a full depot_tools checkout. Use the system-provided valgrind. PR-URL: #9520 Reviewed By: Sakthipriyan Vairamani <[email protected]> Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Michael Dawson <[email protected]>

Author: bnoordhuis

tools/run-valgrind.py

@@ -40,13 +40,9 @@
 importsys
 
 V8_ROOT=path.dirname(path.dirname(path.abspath(__file__)))
-MACHINE='linux_x64'ifplatform.machine() =='x86_64'else'linux_x86'
-VALGRIND_ROOT=path.join(V8_ROOT, 'third_party', 'valgrind', MACHINE)
-VALGRIND_BIN=path.join(VALGRIND_ROOT, 'bin', 'valgrind')
-VALGRIND_LIB=path.join(VALGRIND_ROOT, 'lib', 'valgrind')
 
 VALGRIND_ARGUMENTS= [
-VALGRIND_BIN,
+'valgrind',
 '--error-exitcode=1',
 '--leak-check=full',
 '--smc-check=all',
@@ -65,11 +61,7 @@
 command=VALGRIND_ARGUMENTS+ [executable] +sys.argv[2:]
 
 # Run valgrind.
-process=subprocess.Popen(
-command,
-stderr=subprocess.PIPE,
-env={'VALGRIND_LIB': VALGRIND_LIB}
-)
+process=subprocess.Popen(command, stderr=subprocess.PIPE)
 code=process.wait();
 errors=process.stderr.readlines();