From ebd8eee62a431a6744c3f187fcda58e5dea08499 Mon Sep 17 00:00:00 2001
From: Julian Lettner <julian.lettner@apple.com>
Date: Fri, 7 Jan 2022 16:47:37 -0800
Subject: [PATCH] [Darwin] Apply workaround to make symbolication in iOS
 simulators work

Specify `ASAN_SYMBOLIZER_PATH` when running simulator tests.  This will
unblock simulator testing in GreenDragon (Apple's open source testing).
---
 .../test/sanitizer_common/ios_commands/iossim_run.py   | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/compiler-rt/test/sanitizer_common/ios_commands/iossim_run.py b/compiler-rt/test/sanitizer_common/ios_commands/iossim_run.py
index c8ff980c8b61..49df74e862b6 100755
--- a/compiler-rt/test/sanitizer_common/ios_commands/iossim_run.py
+++ b/compiler-rt/test/sanitizer_common/ios_commands/iossim_run.py
@@ -14,6 +14,7 @@ for e in [
   "ASAN_OPTIONS",
   "TSAN_OPTIONS",
   "UBSAN_OPTIONS",
+  "LSAN_OPTIONS",
   "APPLE_ASAN_INIT_FOR_DLOPEN",
   "ASAN_ACTIVATION_OPTIONS",
   "MallocNanoZone",
@@ -21,6 +22,11 @@ for e in [
   if e in os.environ:
     os.environ["SIMCTL_CHILD_" + e] = os.environ[e]
 
+find_atos_cmd = 'xcrun -sdk iphonesimulator -f atos'
+atos_path = subprocess.run(find_atos_cmd.split(), capture_output=True, check=True).stdout.decode().strip()
+for san in ['ASAN', 'TSAN', 'UBSAN', 'LSAN']:
+  os.environ[f'SIMCTL_CHILD_{san}_SYMBOLIZER_PATH'] = atos_path
+
 prog = sys.argv[1]
 exit_code = None
 if prog == 'rm':
@@ -39,7 +45,7 @@ if prog == 'rm':
   # We use `shell=True` so that any wildcard globs get expanded by the shell.
 
   if iossim_run_verbose:
-    print("RUNNING: \t{}".format(rm_cmd_line_str))
+    print("RUNNING: \t{}".format(rm_cmd_line_str), flush=True)
 
   exitcode = subprocess.call(rm_cmd_line_str, shell=True)
 
@@ -53,7 +59,7 @@ else:
   cmd += sys.argv[1:]
 
   if iossim_run_verbose:
-    print("RUNNING: \t{}".format(" ".join(cmd)))
+    print("RUNNING: \t{}".format(" ".join(cmd)), flush=True)
 
   exitcode = subprocess.call(cmd)
 if exitcode > 125: