From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 9B5D03858425; Sat, 16 Dec 2023 16:39:58 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9B5D03858425
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1702744798;
	bh=Q5M7COX1/XDRa0AQhr40xVtxzRsBNYF/1ocuWTuUzv8=;
	h=From:To:Subject:Date:From;
	b=fSBbCNViKXtl2qiHkGlspH63C5ygH6TXpDDELd3VXHWhCSd6ENEiqsCjs0cUCCl/4
	 W24en0a16kayq8VEuB6Q6g/7IEtPlld+bh9FKyMQaKg9TcZx4uyxUln23xXz6HMnHe
	 inN714O+gOH5B/h8adxR91oplxbu/gHGtqRUckb4=
From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113045] New: armv7l-unknown-linux-gnueabihf: valgrind
 error during build of libcc1
Date: Sat, 16 Dec 2023 16:39:57 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: unknown
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dcb314 at hotmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-113045-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113045

            Bug ID: 113045
           Summary: armv7l-unknown-linux-gnueabihf: valgrind error during
                    build of libcc1
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

I just tried a valgrind build of gcc trunk on my Raspberry PI 3B+.

It said:

echo | /home/dcb/gcc/working/./gcc/xgcc -B/home/dcb/gcc/working/./gcc/=20
-nostdinc -E -dM - | \
  sed -n -e 's/^#define \([^_][a-zA-Z0-9_]*\).*/\1/p' \
         -e 's/^#define \(_[^_A-Z][a-zA-Z0-9_]*\).*/\1/p' | \
  sort -u > tmp-macro_list
=3D=3D9933=3D=3D Invalid read of size 8
=3D=3D9933=3D=3D    at 0x151D554: vld1q_u8 (arm_neon.h:10455)
=3D=3D9933=3D=3D    by 0x151D554: search_line_fast (lex.cc:872)
=3D=3D9933=3D=3D    by 0x151D554: _cpp_clean_line (lex.cc:960)
=3D=3D9933=3D=3D    by 0x151DA0F: bool get_fresh_line_impl<false>(cpp_reade=
r*)
(lex.cc:3747)

$ grep -E "^Config|^=3D=3D[0-9]" mk.out=20
Configuring in ./libiberty
Configuring in ./fixincludes
Configuring in ./lto-plugin
Configuring in build-armv7l-unknown-linux-gnueabihf/libiberty
Configuring in build-armv7l-unknown-linux-gnueabihf/fixincludes
Configuring in build-armv7l-unknown-linux-gnueabihf/libcpp
Configuring in ./zlib
Configuring in ./libbacktrace
Configuring in ./libcody
Configuring in ./libdecnumber
Configuring in ./c++tools
Configuring in ./libcpp
Configuring in ./gcc
Configuring in ./libcc1
=3D=3D9933=3D=3D Invalid read of size 8
=3D=3D9933=3D=3D    at 0x151D554: vld1q_u8 (arm_neon.h:10455)
=3D=3D9933=3D=3D    by 0x151D554: search_line_fast (lex.cc:872)
=3D=3D9933=3D=3D    by 0x151D554: _cpp_clean_line (lex.cc:960)
=3D=3D9933=3D=3D    by 0x151DA0F: bool get_fresh_line_impl<false>(cpp_reade=
r*)
(lex.cc:3
747)

Configure line is

../trunk/configure --disable-multilib \
        --disable-bootstrap \
        --enable-checking=3Dvalgrind \
        --enable-languages=3Dc,c++

And there is some tweeking of the top level Makefile:

sed 's;-O2;-O2 -march=3Dnative;' < Makefile > Makefile.tmp
diff Makefile Makefile.tmp
mv Makefile.tmp Makefile=