[llvm-bugs] [Bug 38415] New: compiler-rt: sanitizer test failures when using libtirpc

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=38415

            Bug ID: 38415
           Summary: compiler-rt: sanitizer test failures when using
                    libtirpc
           Product: compiler-rt
           Version: 7.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: mgorny at gentoo.org
                CC: llvm-bugs at lists.llvm.org
            Blocks: 38406

Created attachment 20632
  --> https://bugs.llvm.org/attachment.cgi?id=20632&action=edit
sys-libs:compiler-rt-sanitizers-7.0.9999:20180802-032830.log.xz

On a system using new glibc that doesn't include RPC, and libtirpc as RPC
provider, a number of compiler-rt tests fail:

Failing Tests (4):
    MemorySanitizer-X86_64 :: Linux/sunrpc.cc
    MemorySanitizer-X86_64 :: Linux/sunrpc_bytes.cc
    MemorySanitizer-X86_64 :: Linux/sunrpc_string.cc
    ThreadSanitizer-x86_64 :: sunrpc.cc


The tests fail trying to find RPC headers without adding appropriate -I paths:

Command Output (stderr):
--
+ : 'RUN: at line 1'
+
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-7.0.9999/work/compiler-rt-sanitizers-7.0.9999_build/lib/llvm/7/bin/clang
--driver-mode=g++ -fsanitize=memory -mno-omit-leaf-frame-pointer
-fno-omit-frame-pointer -fno-optimize-sibling-calls -m64 -gline-tables-only -g
-O0 -DTYPE=int -DFN=xdr_int
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-7.0.9999/work/compiler-rt-sanitizers-7.0.9999/test/msan/Linux/sunrpc.cc
-o
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-7.0.9999/work/compiler-rt-sanitizers-7.0.9999_build/test/msan/X86_64/Linux/Output/sunrpc.cc.tmp
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-7.0.9999/work/compiler-rt-sanitizers-7.0.9999/test/msan/Linux/sunrpc.cc:15:10:
fatal error: 'rpc/xdr.h' file not found
#include <rpc/xdr.h>
         ^~~~~~~~~~~
1 error generated.


A month ago, I've submitted two fixes for finding and using libtirpc which are
stuck in review:

https://reviews.llvm.org/D47817
https://reviews.llvm.org/D47819

I'm attaching a complete build log.


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=38406
[Bug 38406] [meta] 7.0.0 Release Blockers
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