http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55440
Bug #: 55440
Summary: Plugin tests is compiled with wrong CFLAGS
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: hjl.to...@gmail.com
When bootstrapping with asan:
STAGE2_CFLAGS += -fsanitize=address
STAGE3_CFLAGS += -fsanitize=address
POSTSTAGE1_LDFLAGS += -fsanitize=address -static-libasan \
-B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/asan/.libs
all plugin tests fails with
spawn -ignore SIGHUP
/export/build/gnu/gcc-asan/build-x86_64-linux/./prev-gcc/g++
-B/export/build/gnu/gcc-asan/build-x86_64-linux/./prev-gcc/
-B/usr/local/x86_64-unknown-linux-gnu/bin/ -nostdinc++
-B/export/build/gnu/gcc-asan/build-x86_64-linux/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-B/export/build/gnu/gcc-asan/build-x86_64-linux/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-I/export/build/gnu/gcc-asan/build-x86_64-linux/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu
-I/export/build/gnu/gcc-asan/build-x86_64-linux/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include
-I/export/gnu/import/git/gcc/libstdc++-v3/libsupc++
-L/export/build/gnu/gcc-asan/build-x86_64-linux/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/export/build/gnu/gcc-asan/build-x86_64-linux/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-O2 -g -fsanitize=address
/export/gnu/import/git/gcc/gcc/testsuite/g++.dg/plugin/dumb_plugin.c -I.
-I/export/gnu/import/git/gcc/gcc/testsuite
-I/export/gnu/import/git/gcc/gcc/testsuite/../../gcc
-I/export/build/gnu/gcc-asan/build-x86_64-linux/gcc/testsuite/g++/../../../gcc
-I/export/gnu/import/git/gcc/gcc/testsuite/../../include
-I/export/gnu/import/git/gcc/gcc/testsuite/../../libcpp/include
-I/export/build/gnu/gcc-asan/build-x86_64-linux/gcc/testsuite/g++/../../../intl
-DIN_GCC -fPIC -shared -o dumb_plugin.so^M
/usr/local/x86_64-unknown-linux-gnu/bin/ld: cannot find -lasan^M
There are 2 problems:
1. plugin DSO is dlopened by linker, not GCC. Compiling it with asan may
not work correctly. linker may not find asan DSO at run-time.
2. If we want to use BOOT CFLAGS to compile plugin DSO, we should also
use BOOT LDFLAGS to create plugin DSO.
But I don't think plugin DSO should be compiled with BOOT CFLAGS.
