From owner-freebsd-ppc@freebsd.org Sat Jan 21 22:16:42 2017 Return-Path: Delivered-To: freebsd-ppc@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 20F1AC6DBEE for ; Sat, 21 Jan 2017 22:16:42 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-210-10.reflexion.net [208.70.210.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id CA59ADA for ; Sat, 21 Jan 2017 22:16:41 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 14118 invoked from network); 21 Jan 2017 22:18:10 -0000 Received: from unknown (HELO rtc-sm-01.app.dca.reflexion.local) (10.81.150.1) by 0 (rfx-qmail) with SMTP; 21 Jan 2017 22:18:10 -0000 Received: by rtc-sm-01.app.dca.reflexion.local (Reflexion email security v8.20.1) with SMTP; Sat, 21 Jan 2017 17:16:34 -0500 (EST) Received: (qmail 27459 invoked from network); 21 Jan 2017 22:16:34 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with (AES256-SHA encrypted) SMTP; 21 Jan 2017 22:16:34 -0000 Received: from [192.168.1.111] (c-67-170-167-181.hsd1.or.comcast.net [67.170.167.181]) by iron2.pdx.net (Postfix) with ESMTPSA id B57E5EC7888 for ; Sat, 21 Jan 2017 14:16:33 -0800 (PST) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) Subject: 3.9.1's lld and powerpc64 for -pie use: can't create dynamic relocation R_PPC64_REL24 against readonly segment Message-Id: <5FF1F3C4-E169-4967-9B08-F97A52B33E6F@dsl-only.net> Date: Sat, 21 Jan 2017 14:16:33 -0800 To: FreeBSD PowerPC ML X-Mailer: Apple Mail (2.3259) X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Jan 2017 22:16:42 -0000 For: # more main.c = = static volatile = char big_area[67001] =3D "This is a test"; int main () { big_area[67000] =3D '9'; } I get (the -fPIE is not required for the behavior): # clang -fuse-ld=3Dlld -Wl,-t -pie -fPIE main.c /usr/lib/Scrt1.o /usr/lib/crti.o /usr/lib/crtbeginS.o /tmp/main-c6f752.o /usr/lib/libgcc_s.so /lib/libc.so.7 /usr/lib/libgcc_s.so /usr/lib/crtendS.o /usr/lib/crtn.o can't create dynamic relocation R_PPC64_REL24 against readonly segment can't create dynamic relocation R_PPC64_REL24 against readonly segment can't create dynamic relocation R_PPC64_REL24 against readonly segment can't create dynamic relocation R_PPC64_REL24 against readonly segment can't create dynamic relocation R_PPC64_REL24 against readonly segment can't create dynamic relocation R_PPC64_REL24 against readonly segment clang: error: linker command failed with exit code 1 (use -v to see = invocation) (This is difficult to study because it does not leave even a partial a.out and it does not report the specifics of what segment or what symbol or the like.) Even an empty source produces that, but also including the expected: undefined symbol: main in /usr/lib/Scrt1.o It appears that the R_PPC64_REL24's are some subset of. . . /usr/lib/Scrt1.o : 00000000000000cc R_PPC64_REL24 atexit 00000000000000d8 R_PPC64_REL24 _init_tls 00000000000000f8 R_PPC64_REL24 atexit 00000000000001b4 R_PPC64_REL24 _init 0000000000000240 R_PPC64_REL24 main 0000000000000248 R_PPC64_REL24 exit 00000000000002fc R_PPC64_REL24 _fini (That would be 6 by ignoring main, matching the message count.) /usr/lib/crtbeginS.o : 0000000000000040 R_PPC64_REL24 __cxa_finalize 0000000000000000 R_PPC64_REL24 .opd 0000000000000000 R_PPC64_REL24 .opd+0x0000000000000018 /usr/lib/crtendS.o : 0000000000000000 R_PPC64_REL24 .opd main.o , if I have it produced, does not have R_PPC64_REL24 in it. =3D=3D=3D Mark Millard markmi at dsl-only.net