Bug 1582515

Description of problem:

I got these test failures trying to build the stock latest
RHEL compiler on my Scientific Linux SL 7.5 system - it 
appears to be an 'upstream' (Red Hat) bug - NO non-SL
RPM binaries were picked up in my $PATH or $LD_LIBRARY_PATH
during build with 'rpmbuild -ba SPECS/gcc.spec', where 
gcc.spec comes from SRPM:
   SRPMS/gcc-4.8.5-28.el7_5.1.src.rpm

After build, cd to:
   BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/gcc/testsuite/g++

  $ grep '^FAIL' g++.log

FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SimpleStackTest A[kSize + 31] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SimpleStackTest A[kSize + 31] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SimpleStackTest A[kSize + 31] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SimpleStackTest A[kSize + 31] = 0 execution test
FAIL: g++.dg/fstack-protector-strong.C -std=gnu++98  scan-assembler-times stack_chk_fail 2
FAIL: g++.dg/fstack-protector-strong.C -std=gnu++11  scan-assembler-times stack_chk_fail 2


(I will raise separate bug about  g++.dg/fstack-protector-strong if not
 already there).

Really, the whole reason I install a RHEL image is so that I have
access to a GCC instance where things like asan 'just work' .

I do have gcc 5, 6, 7 and 8 and binutils-2.30
installed under /usr/local/bin, but my $PATH
for the build was '/usr/bin' ONLY , 
and /usr/local was not in any environment variable setting.

All dependencies of GCC RPM are at their latest up-to-date 
defaults on the target system. So why can't I build the
system compiler without these G++ test suite failures ?

Here is the GCC testsuite summary:

                 === gcc Summary for unix//-fstack-protector ===

# of expected passes            100964
# of unexpected failures        51
# of unexpected successes       41
# of expected failures          332
# of unsupported tests          1536

                === gcc Summary ===

# of expected passes            151624
# of unexpected failures        69
# of unexpected successes       82
# of expected failures          548
# of unsupported tests          2103


and for G++:

                === g++ Summary for unix//-fstack-protector ===

# of expected passes            45424
# of unexpected failures        2
# of expected failures          284
# of unsupported tests          645

                === g++ Summary ===

# of expected passes            90850
# of unexpected failures        2
# of expected failures          568
# of unsupported tests          1290




Results for GCC 6 (compiled with $PATH starting with /usr/local/bin
and with /usr/local/lib64 in LD_LIBRARY_PATH) are very slightly 
better if workaround for GCC BZ 85924 permitting -static-libasan
builds not to coredump is in place :

                === gcc Summary ===

# of expected passes            123070
# of unexpected failures        52
# of unexpected successes       21
# of expected failures          326
# of unsupported tests          1773

                === g++ Sumary
# of unexpected failures        2
$ grep '^FAIL' g++.log
FAIL: g++.dg/guality/pr55665.C   -O2  line 23 p == 40
FAIL: g++.dg/guality/pr55665.C   -O3 -g  line 23 p == 40
(I raised GCC bug BZ 85887 about this). 


GCC 7 gets the same G++ test suite failures.

But I'd have expected the stock RHEL compiler to support -fsanitize=address builds properly.

Version-Release number of selected component (if applicable):

gcc-4.8.5-28.el7_5.1

How reproducible:


Steps to Reproduce:
1. Install gcc-4.8.5-28.el7_5.1.srpm & gcc build requires
2. rpmbuild -ba SPECS/gcc.spec
3. cd BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/gcc/testsuite/g++
4. grep '^FAIL' g++.log

Actual results:

Test suite failures.

Expected results:

No test suite failures.

Additional info:

I can attach complete 'rpmbuild -ba 2>&1 | tee $LOG_FILE' output if desired.