From: Gabe Black <gabe.black@gmail.com>
Date: Thu, 26 Mar 2020 10:20:41 +0000 (-0700)
Subject: scons: Use the lsan-suppressions file when running internal commands.
X-Git-Tag: v20.0.0.0~246
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b5a3c0de7e0f24686c6cef9deb5c7b58f44f6eb7;p=gem5.git

scons: Use the lsan-suppressions file when running internal commands.

These commands (like the marshal binary) might otherwise fail with
spurious leaks detected in the python library.

Change-Id: I042c2a811d465ac03f005672f328c0fb0b594494
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27125
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
---

diff --git a/SConstruct b/SConstruct
index b93a00026..4273d147f 100755
--- a/SConstruct
+++ b/SConstruct
@@ -510,6 +510,16 @@ if GetOption('with_asan'):
     # Available for gcc >= 4.8 or llvm >= 3.1 both a requirement
     # by the build system
     sanitizers.append('address')
+    suppressions_file = Dir('util').File('lsan-suppressions').get_abspath()
+    suppressions_opt = 'suppressions=%s' % suppressions_file
+    main['ENV']['LSAN_OPTIONS'] = ':'.join([suppressions_opt,
+                                            'print_suppressions=0'])
+    print()
+    warning('To suppress false positive leaks, set the LSAN_OPTIONS '
+            'environment variable to "%s" when running gem5' %
+            suppressions_opt)
+    warning('LSAN_OPTIONS=suppressions=%s' % suppressions_opt)
+    print()
 if sanitizers:
     sanitizers = ','.join(sanitizers)
     if main['GCC'] or main['CLANG']: