Your message dated Sat, 11 Jun 2016 04:35:53 +0000
with message-id <e1bbaeh-0005tc...@franck.debian.org>
and subject line Bug#819176: fixed in gcc-5 5.4.0-4
has caused the Debian Bug report #819176,
regarding gcc-5: Please avoid storing -fdebug-prefix-map in DW_AT_producer (for
better reproducibility)
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.)
--
819176: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=819176
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: gcc-5
Version: 5.3.1-12
Severity: wishlist
Tags: patch
User: reproducible-bui...@lists.alioth.debian.org
Usertags: buildpath
embedding the build path in binaries makes it harder to get
byte-for-byte reproducibility, because the build has to happen in the
same directory.
gcc by default embeds the build path in the debug info of C tools
(e.g. DW_AT_comp_dir and DW_AT_decl_file). This isn't useful for
distributed binary packages, because the build environment isn't on
the same machine (or necessarily in the same place).
The build path can be mangled/stripped with gcc's -fdebug-prefix-map
argument. For example:
gcc -fdebug-prefix-map=$(pwd)=. -g -o foo foo.c
however, when supplying -fdebug-prefix-map, gcc puts that string
itself into DW_AT_producer.
The attached patch (pulled from upstream gcc master) avoids storing
-fdebug-prefix-map in DW_AT_producer.
I'd like this to be backported into debian's gcc so that we can make
and test a more reproducible toolchain.
(thinking about timing: we shouldn't need the patch once we move to
gcc 6, but we should be testing a buildpath-independent reproducible
toolchain now; i'll file a bug soon to add this pattern to either dh
or dpkg-buildflags)
Regards,
--dkg
-- System Information:
Debian Release: stretch/sid
Architecture: amd64 (x86_64)
Kernel: Linux 4.4.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages gcc-5 depends on:
ii binutils 2.26-5
ii cpp-5 5.3.1-12
ii gcc-5-base 5.3.1-12
ii libc6 2.22-3
ii libcc1-0 5.3.1-12
ii libgcc-5-dev 5.3.1-12
ii libgcc1 1:5.3.1-12
ii libgmp10 2:6.1.0+dfsg-2
ii libisl15 0.16.1-1
ii libmpc3 1.0.3-1
ii libmpfr4 3.1.4-1
ii libstdc++6 5.3.1-12
ii zlib1g 1:1.2.8.dfsg-2+b1
Versions of packages gcc-5 recommends:
ii libc6-dev 2.22-3
Versions of packages gcc-5 suggests:
pn gcc-5-doc <none>
pn gcc-5-locales <none>
ii gcc-5-multilib 5.3.1-12
pn libasan2-dbg <none>
pn libatomic1-dbg <none>
pn libcilkrts5-dbg <none>
pn libgcc1-dbg <none>
pn libgomp1-dbg <none>
pn libitm1-dbg <none>
pn liblsan0-dbg <none>
pn libmpx0-dbg <none>
pn libquadmath0-dbg <none>
pn libtsan0-dbg <none>
pn libubsan0-dbg <none>
-- debconf-show failed
>From 6ceddcd7b87911ddbb942923722af5a735dacedc Mon Sep 17 00:00:00 2001
From: bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 18 Dec 2015 19:48:26 +0000
Subject: [PATCH] Ignore -fdebug-prefix-map in producer string (by Daniel Kahn
Gillmor)
* dwarf2out.c (gen_producer_string): Ignore -fdebug-prefix-map.
testsuite/
* gcc.dg/debug/dwarf2/prod-options.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231835 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 4 ++++
gcc/dwarf2out.c | 1 +
gcc/testsuite/ChangeLog | 4 ++++
gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c | 12 ++++++++++++
4 files changed, 21 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fec7992..11ee620 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2015-12-18 Daniel Kahn Gillmor <d...@fifthhorseman.net>
+
+ * dwarf2out.c (gen_producer_string): Ignore -fdebug-prefix-map.
+
2015-12-18 Nathan Sidwell <nat...@acm.org>
* config/nvptx/nvptx.c (nvptx_option_override): Emit sorry for
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 067c4f2..320a077 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -21498,6 +21498,7 @@ gen_producer_string (void)
case OPT_fpreprocessed:
case OPT_fltrans_output_list_:
case OPT_fresolution_:
+ case OPT_fdebug_prefix_map_:
/* Ignore these. */
continue;
default:
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5da1ce4..b2d9d3b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2015-12-18 Bernd Schmidt <bschm...@redhat.com>
+
+ * gcc.dg/debug/dwarf2/prod-options.c: New test.
+
2015-12-18 Eric Botcazou <ebotca...@adacore.com>
* gnat.dg/specs/debug1.ads: Bump final count to 18.
diff --git a/gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c b/gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c
new file mode 100644
index 0000000..21449f9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c
@@ -0,0 +1,12 @@
+/* Verify that the DW_AT_producer does not contain certain compiler options
+ such as -fdebug-prefix-map=; this is undesirable since path names make
+ the build not reproducible. Other skipped options could be tested here
+ as well. */
+/* { dg-do compile } */
+/* { dg-options "-O2 -gdwarf -dA -fdebug-prefix-map=a=b" } */
+/* { dg-final { scan-assembler "DW_AT_producer: \"GNU C" } } */
+/* { dg-final { scan-assembler-not "debug-prefix-map" } } */
+
+void func (void)
+{
+}
--
2.8.0.rc3
--- End Message ---
--- Begin Message ---
Source: gcc-5
Source-Version: 5.4.0-4
We believe that the bug you reported is fixed in the latest version of
gcc-5, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 819...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Matthias Klose <d...@debian.org> (supplier of updated gcc-5 package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmas...@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Fri, 10 Jun 2016 17:03:20 +0200
Source: gcc-5
Binary: gcc-5-base libgcc-5-dev libgcc4 libgcc4-dbg lib64gcc-5-dev
lib32gcc-5-dev libn32gcc-5-dev libx32gcc-5-dev gcc-5 gcc-5-multilib
gcc-5-test-results gcc-5-plugin-dev gcc-5-hppa64-linux-gnu cpp-5 gcc-5-locales
g++-5 g++-5-multilib libasan2 libasan2-dbg lib32asan2 lib32asan2-dbg lib64asan2
lib64asan2-dbg libx32asan2 libx32asan2-dbg libmpx0 libmpx0-dbg lib32mpx0
lib32mpx0-dbg lib64mpx0 lib64mpx0-dbg libgccjit-5-doc libgccjit-5-dev gobjc++-5
gobjc++-5-multilib gobjc-5 gobjc-5-multilib libobjc-5-dev lib64objc-5-dev
lib32objc-5-dev libn32objc-5-dev libx32objc-5-dev gfortran-5
gfortran-5-multilib libgfortran-5-dev lib64gfortran-5-dev lib32gfortran-5-dev
libn32gfortran-5-dev libx32gfortran-5-dev gccgo-5 gccgo-5-multilib libgo7
libgo7-dbg lib64go7 lib64go7-dbg lib32go7 lib32go7-dbg libn32go7 libn32go7-dbg
libx32go7 libx32go7-dbg gcj-5 gcj-5-jdk gcj-5-jre-headless gcj-5-jre libgcj16
gcj-5-jre-lib libgcj16-awt libgcj16-dev libgcj16-dbg gcj-5-source libgcj-doc
libstdc++-5-dev
libstdc++-5-pic libstdc++6-5-dbg lib32stdc++-5-dev lib32stdc++6-5-dbg
lib64stdc++-5-dev lib64stdc++6-5-dbg libn32stdc++-5-dev libn32stdc++6-5-dbg
libx32stdc++-5-dev libx32stdc++6-5-dbg libstdc++-5-doc gnat-5 gnat-5-sjlj
libgnat-5 libgnat-5-dbg libgnatvsn5-dev libgnatvsn5 libgnatvsn5-dbg
libgnatprj5-dev libgnatprj5 libgnatprj5-dbg gdc-5 gdc-5-multilib
libphobos-5-dev lib64phobos-5-dev lib32phobos-5-dev libx32phobos-5-dev
gcc-5-source
Architecture: source all
Version: 5.4.0-4
Distribution: unstable
Urgency: medium
Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org>
Changed-By: Matthias Klose <d...@debian.org>
Description:
cpp-5 - GNU C preprocessor
g++-5 - GNU C++ compiler
g++-5-multilib - GNU C++ compiler (multilib support)
gcc-5 - GNU C compiler
gcc-5-base - GCC, the GNU Compiler Collection (base package)
gcc-5-hppa64-linux-gnu - GNU C compiler (cross compiler for hppa64)
gcc-5-locales - GCC, the GNU compiler collection (native language support
files)
gcc-5-multilib - GNU C compiler (multilib support)
gcc-5-plugin-dev - Files for GNU GCC plugin development.
gcc-5-source - Source of the GNU Compiler Collection
gcc-5-test-results - Test results for the GCC test suite
gccgo-5 - GNU Go compiler
gccgo-5-multilib - GNU Go compiler (multilib support)
gcj-5 - GCJ byte code and native compiler for Java(TM)
gcj-5-jdk - GCJ and Classpath development tools for Java(TM)
gcj-5-jre - Java runtime environment using GIJ/Classpath
gcj-5-jre-headless - Java runtime environment using GIJ/Classpath (headless
version)
gcj-5-jre-lib - Java runtime library for use with gcj (jar files)
gcj-5-source - GCJ java sources for use in IDEs like eclipse and netbeans
gdc-5 - GNU D compiler (version 2)
gdc-5-multilib - GNU D compiler (version 2, multilib support)
gfortran-5 - GNU Fortran compiler
gfortran-5-multilib - GNU Fortran compiler (multilib support)
gnat-5 - GNU Ada compiler
gnat-5-sjlj - GNU Ada compiler (setjump/longjump runtime library)
gobjc++-5 - GNU Objective-C++ compiler
gobjc++-5-multilib - GNU Objective-C++ compiler (multilib support)
gobjc-5 - GNU Objective-C compiler
gobjc-5-multilib - GNU Objective-C compiler (multilib support)
lib32asan2 - AddressSanitizer -- a fast memory error detector (32bit)
lib32asan2-dbg - AddressSanitizer -- a fast memory error detector (32 bit
debug sy
lib32gcc-5-dev - GCC support library (32 bit development files)
lib32gfortran-5-dev - Runtime library for GNU Fortran applications (32bit
development f
lib32go7 - Runtime library for GNU Go applications (32bit)
lib32go7-dbg - Runtime library for GNU Go applications (32 bit debug symbols)
lib32mpx0 - Intel memory protection extensions (32bit)
lib32mpx0-dbg - Intel memory protection extensions (32 bit debug symbols)
lib32objc-5-dev - Runtime library for GNU Objective-C applications (32bit
developme
lib32phobos-5-dev - Phobos D standard library (64bit development files)
lib32stdc++-5-dev - GNU Standard C++ Library v3 (development files)
lib32stdc++6-5-dbg - GNU Standard C++ Library v3 (debugging files)
lib64asan2 - AddressSanitizer -- a fast memory error detector (64bit)
lib64asan2-dbg - AddressSanitizer -- a fast memory error detector (64bit debug
sym
lib64gcc-5-dev - GCC support library (64bit development files)
lib64gfortran-5-dev - Runtime library for GNU Fortran applications (64bit
development f
lib64go7 - Runtime library for GNU Go applications (64bit)
lib64go7-dbg - Runtime library for GNU Go applications (64bit debug symbols)
lib64mpx0 - Intel memory protection extensions (64bit)
lib64mpx0-dbg - Intel memory protection extensions (64bit debug symbols)
lib64objc-5-dev - Runtime library for GNU Objective-C applications (64bit
developme
lib64phobos-5-dev - Phobos D standard library (64bit development files)
lib64stdc++-5-dev - GNU Standard C++ Library v3 (development files)
lib64stdc++6-5-dbg - GNU Standard C++ Library v3 (debugging files)
libasan2 - AddressSanitizer -- a fast memory error detector
libasan2-dbg - AddressSanitizer -- a fast memory error detector (debug symbols)
libgcc-5-dev - GCC support library (development files)
libgcc4 - GCC support library
libgcc4-dbg - GCC support library (debug symbols)
libgccjit-5-dev - GCC just-in-time compilation (development files)
libgccjit-5-doc - GCC just-in-time compilation (documentation)
libgcj-doc - libgcj API documentation and example programs
libgcj16 - Java runtime library for use with gcj
libgcj16-awt - AWT peer runtime libraries for use with gcj
libgcj16-dbg - Debugging symbols for libraries provided in libgcj16-dev
libgcj16-dev - Java development headers for use with gcj
libgfortran-5-dev - Runtime library for GNU Fortran applications (development
files)
libgnat-5 - runtime for applications compiled with GNAT (shared library)
libgnat-5-dbg - runtime for applications compiled with GNAT (debugging symbols)
libgnatprj5 - GNU Ada compiler Project Manager (shared library)
libgnatprj5-dbg - GNU Ada compiler Project Manager (debugging symbols)
libgnatprj5-dev - GNU Ada compiler Project Manager (development files)
libgnatvsn5 - GNU Ada compiler selected components (shared library)
libgnatvsn5-dbg - GNU Ada compiler selected components (debugging symbols)
libgnatvsn5-dev - GNU Ada compiler selected components (development files)
libgo7 - Runtime library for GNU Go applications
libgo7-dbg - Runtime library for GNU Go applications (debug symbols)
libmpx0 - Intel memory protection extensions (runtime)
libmpx0-dbg - Intel memory protection extensions (debug symbols)
libn32gcc-5-dev - GCC support library (n32 development files)
libn32gfortran-5-dev - Runtime library for GNU Fortran applications (n32
development fil
libn32go7 - Runtime library for GNU Go applications (n32)
libn32go7-dbg - Runtime library for GNU Go applications (n32 debug symbols)
libn32objc-5-dev - Runtime library for GNU Objective-C applications (n32
development
libn32stdc++-5-dev - GNU Standard C++ Library v3 (development files)
libn32stdc++6-5-dbg - GNU Standard C++ Library v3 (debugging files)
libobjc-5-dev - Runtime library for GNU Objective-C applications (development
fil
libphobos-5-dev - Phobos D standard library
libstdc++-5-dev - GNU Standard C++ Library v3 (development files)
libstdc++-5-doc - GNU Standard C++ Library v3 (documentation files)
libstdc++-5-pic - GNU Standard C++ Library v3 (shared library subset kit)
libstdc++6-5-dbg - GNU Standard C++ Library v3 (debugging files)
libx32asan2 - AddressSanitizer -- a fast memory error detector (x32)
libx32asan2-dbg - AddressSanitizer -- a fast memory error detector (x32 debug
symbo
libx32gcc-5-dev - GCC support library (x32 development files)
libx32gfortran-5-dev - Runtime library for GNU Fortran applications (x32
development fil
libx32go7 - Runtime library for GNU Go applications (x32)
libx32go7-dbg - Runtime library for GNU Go applications (x32 debug symbols)
libx32objc-5-dev - Runtime library for GNU Objective-C applications (x32
development
libx32phobos-5-dev - Phobos D standard library (x32 development files)
libx32stdc++-5-dev - GNU Standard C++ Library v3 (development files)
libx32stdc++6-5-dbg - GNU Standard C++ Library v3 (debugging files)
Closes: 819176 826583 826645
Changes:
gcc-5 (5.4.0-4) unstable; urgency=medium
.
* gdc: Fix linking the runtime library. Closes: #826645.
* gdc: Fix updates from 5.3.x. Closes: #826583.
* Update the Linaro support to the 5-2016.06 snapshot.
* Avoid storing -fdebug-prefix-map in DW_AT_producer (for better
reproducibility). Taken from the trunk (Daniel Kahn Gillmor).
Closes: #819176.
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