Your message dated Wed, 28 Jun 2017 13:07:48 +0200 with message-id <194d943b-ca9f-cd55-2de7-a39bc0d4d...@debian.org> and subject line Re: [gcc-6] gcc-6 can't compile mixed-bitness code has caused the Debian Bug report #861085, regarding [gcc-6] gcc-6 can't compile mixed-bitness code to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 861085: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=861085 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Package: gcc-6 Version: 6.3.0-14 Severity: normal Dear maintainer, in attached file you can see the code from CRIU project. gcc-6 fails to compile it, while gcc-4.9 has no such problem. $ gcc-6 call32.S /usr/bin/ld: /tmp/cczRnuRR.o: relocation R_X86_64_32S against `.text' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Nonrepresentable section on output collect2: error: ld returned 1 exit status (The code is borrowed from Linux kernel and it also can be found at <linux kernel>/tools/testing/selftests/x86/thunks.S file). Regards, Kirill --- System information. --- Architecture: Kernel: Linux 4.11.0-rc7+ Debian Release: 9.0 500 unstable ftp.ru.debian.org 500 testing ftp.ru.debian.org 500 stable-updates ftp.ru.debian.org 500 stable security.debian.org 500 stable repo.skype.com 500 stable ftp.ru.debian.org 1 experimental ftp.ru.debian.org --- Package information. --- Depends (Version) | Installed ==============================-+-============== cpp-6 (= 6.3.0-14) | 6.3.0-14 gcc-6-base (= 6.3.0-14) | libcc1-0 (>= 6.3.0-14) | binutils (>= 2.28) | libgcc-6-dev (= 6.3.0-14) | libc6 (>= 2.14) | libgcc1 (>= 1:3.0) | libgmp10 (>= 2:5.0.1~) | libisl15 (>= 0.15) | libmpc3 | libmpfr4 (>= 3.1.3) | libstdc++6 (>= 5) | zlib1g (>= 1:1.1.4) | Recommends (Version) | Installed ==========================-+-============ libc6-dev (>= 2.13-5) | 2.24-10 Suggests (Version) | Installed ====================================-+-================ gcc-6-multilib | 6.3.0-14 gcc-6-doc (>= 6.3.0-1) | gcc-6-locales (>= 6.3.0-1) | libgcc1-dbg (>= 1:6.3.0-14) | libgomp1-dbg (>= 6.3.0-14) | libitm1-dbg (>= 6.3.0-14) | libatomic1-dbg (>= 6.3.0-14) | libasan3-dbg (>= 6.3.0-14) | liblsan0-dbg (>= 6.3.0-14) | libtsan0-dbg (>= 6.3.0-14) | libubsan0-dbg (>= 6.3.0-14) | libcilkrts5-dbg (>= 6.3.0-14) | libmpx2-dbg (>= 6.3.0-14) | libquadmath0-dbg (>= 6.3.0-14) |/* * call32.S - assembly helpers for mixed-bitness code * From kernel selftests originally: tools/testing/selftests/x86/thunks.S * Copyright (c) 2015 Andrew Lutomirski * * This program is free software; you can redistribute it and/or modify * it under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * These are little helpers that make it easier to switch bitness on * the fly. */ #define __ALIGN .align 4, 0x90 #define __ALIGN_STR ".align 4, 0x90" #define GLOBAL(name) \ .globl name; \ name: #define ENTRY(name) \ .globl name; \ .type name, @function; \ __ALIGN; \ name: #define END(sym) \ .size sym, . - sym #define __USER32_CS 0x23 #define __USER_CS 0x33 .text /* * @rdi: Stack to use * @esi: Pointer to function for calling */ ENTRY(call32_from_64) /* Callee-saving registers due to ABI */ pushq %rbx pushq %rbp pushq %r12 pushq %r13 pushq %r14 pushq %r15 pushfq /* Switch stacks */ sub $8, %rdi mov %rsp,(%rdi) mov %rdi,%rsp /* Switch into compatibility mode */ pushq $__USER32_CS pushq $1f lretq 1: .code32 /* Run function and switch back */ call *%esi jmp $__USER_CS,$1f .code64 1: /* Restore the stack */ mov (%rsp),%rsp add $8, %rdi /* Restore registers */ popfq popq %r15 popq %r14 popq %r13 popq %r12 popq %rbp popq %rbx ret END(call32_from_64) ENTRY(main) nop END(main)
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--- Begin Message ---closing as invalid. I think this has nothing to do with mixed bitness. The debian gcc defaults to pie by default. Turning off pie should work for you.
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