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[Bug bootstrap/69329] [6 Regression] --with-build-config=bootstrap-asan fails because LSAN_OPTIONS is not honored

From: "miyuki at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
To: gcc-bugs at gcc dot gnu dot org
Date: Sun, 17 Jan 2016 21:15:48 +0000
Subject: [Bug bootstrap/69329] [6 Regression] --with-build-config=bootstrap-asan fails because LSAN_OPTIONS is not honored
Auto-submitted: auto-generated
References: <bug-69329-4 at http dot gcc dot gnu dot org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69329

--- Comment #1 from Mikhail Maltsev <miyuki at gcc dot gnu.org> ---
I tried this patch:

diff --git a/Makefile.in b/Makefile.in
index 2733c4d..31ee4c0 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -789,7 +789,8 @@ BASE_FLAGS_TO_PASS = \
        $(CXX_FOR_TARGET_FLAG_TO_PASS) \
        "TFLAGS=$(TFLAGS)" \
        "CONFIG_SHELL=$(SHELL)" \
-       "MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" 
+       "MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" \
+       "LSAN_OPTIONS=$(LSAN_OPTIONS)"

 # We leave this in just in case, but it is not needed anymore.
 RECURSE_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS)
diff --git a/Makefile.tpl b/Makefile.tpl
index f7bb77e..860175e 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -590,7 +590,8 @@ BASE_FLAGS_TO_PASS =[+ FOR flags_to_pass +][+ IF optional
+] \
        $(CXX_FOR_TARGET_FLAG_TO_PASS) \
        "TFLAGS=$(TFLAGS)" \
        "CONFIG_SHELL=$(SHELL)" \
-       "MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" 
+       "MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" \
+       "LSAN_OPTIONS=$(LSAN_OPTIONS)"

 # We leave this in just in case, but it is not needed anymore.
 RECURSE_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS)

It fixes the issue but causes regressions for normal build (without ASAN
instrumentation):

Running target unix/-m32
FAIL: c-c++-common/asan/pr59063-2.c   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  (test for excess errors)
UNRESOLVED: c-c++-common/asan/pr59063-2.c   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  compilation failed to produce executable
FAIL: c-c++-common/asan/pr59063-2.c   -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects  (test for excess errors)
UNRESOLVED: c-c++-common/asan/pr59063-2.c   -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects  compilation failed to produce executable

"compilation failed to produce executable" actually means link errors (-lasan
not found).

References:
- [Bug bootstrap/69329] New: [6 Regression] --with-build-config=bootstrap-asan fails because LSAN_OPTIONS is not honored
  - From: miyuki at gcc dot gnu.org

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