Your message dated Thu, 08 Feb 2024 18:50:44 +0000
with message-id <e1ry9tw-009vjb...@fasolo.debian.org>
and subject line Bug#1063359: fixed in gdb-mingw-w64 13.1
has caused the Debian Bug report #1063359,
regarding gdb-mingw-w64: FTBFS on arm64 due to arch-specific build flag:
-mbranch-protection=standard
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.
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--
1063359: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063359
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Source: gdb-mingw-w64
Version: 13
Severity: serious
Justification: fails to build from source (but built successfully in the past)
Tags: sid trixie ftbfs patch
User: debian-...@lists.debian.org
Usertags: arm64
Hi,
arm64 now has an architecture-specific flag among the default build
flags: -mbranch-protection=standard.
gdb-mingw-w64 calls dpkg-buildflags on the build system, which on arm64
looks like this:
$ dpkg-buildflags --get CFLAGS
-g -O2 -ffile-prefix-map=/tmp/gdb-mingw-w64-13=. -fstack-protector-strong
-fstack-clash-protection -Wformat -Werror=format-security
-mbranch-protection=standard
The output of the above command is then passed to the configure script
of the various targets (i686-w64-mingw32 and x86_64-w64-mingw32),
resulting in the following FTBFS on arm64:
checking for i686-w64-mingw32-gcc... i686-w64-mingw32-gcc-posix
checking whether the C compiler works... no
configure: error: in
`/tmp/gdb-mingw-w64-13/build-gdbserver/i686-w64-mingw32/gnulib':
configure: error: C compiler cannot create executables
See `config.log' for more details
And indeed config.log points out the issue:
i686-w64-mingw32-gcc-posix: error: unrecognized command-line option
'-mbranch-protection=standard'
I propose in the attached patch to use DEB_HOST_ARCH and ensure that
i686-specific flags are used when building for i686, ditto for amd64.
Emanuele
diff -Nru gdb-mingw-w64-13/debian/changelog gdb-mingw-w64-13+nmu1/debian/changelog
--- gdb-mingw-w64-13/debian/changelog 2023-09-29 17:54:37.000000000 +0200
+++ gdb-mingw-w64-13+nmu1/debian/changelog 2024-02-06 20:23:38.000000000 +0100
@@ -1,3 +1,11 @@
+gdb-mingw-w64 (13+nmu1) UNRELEASED; urgency=medium
+
+ * Non-maintainer upload.
+ * Use DEB_HOST_ARCH to avoid setting potentially arch-specific build flags.
+ Closes: -1.
+
+ -- Emanuele Rocca <e...@debian.org> Tue, 06 Feb 2024 20:23:38 +0100
+
gdb-mingw-w64 (13) unstable; urgency=medium
* Switch from the obsolete libncurses5-dev build-dependency to
diff -Nru gdb-mingw-w64-13/debian/rules gdb-mingw-w64-13+nmu1/debian/rules
--- gdb-mingw-w64-13/debian/rules 2023-09-29 13:47:46.000000000 +0200
+++ gdb-mingw-w64-13+nmu1/debian/rules 2024-02-06 20:23:38.000000000 +0100
@@ -69,6 +69,7 @@
override_dh_auto_configure-arch: unpack-stamp
set -e; \
for target in $(targets); do \
+ host_arch=$(shell echo $target | grep -q ^i686 && echo i686 || echo amd64); \
mkdir -p $(build_gdb_dir)/$$target; \
cd $(build_gdb_dir)/$$target; \
$(upstream_dir)/configure \
@@ -77,7 +78,7 @@
--with-system-readline --with-system-zlib \
--enable-tui --with-expat --with-python=python3 \
--target=$$target --disable-werror \
- $(shell $(dpkg_buildflags_arch) --export=cmdline); \
+ $(shell DEB_HOST_ARCH=$host_arch $(dpkg_buildflags_arch) --export=cmdline); \
done
# We're only interested in gdbserver; that also requires gnulib, libiberty, and gdbsupport
@@ -85,6 +86,7 @@
override_dh_auto_configure-indep: unpack-stamp
set -e; \
for target in $(targets); do \
+ host_arch=$(shell echo $target | grep -q ^i686 && echo i686 || echo amd64); \
for project in $(gdbserver_projects); do \
mkdir -p $(build_gdbserver_dir)/$$target/$$project; \
cd $(build_gdbserver_dir)/$$target/$$project; \
@@ -93,22 +95,24 @@
--host=$$target --target=$$target \
CC=$$target-gcc-posix CXX=$$target-g++-posix \
--disable-werror \
- $(shell $(dpkg_buildflags_indep) --export=cmdline); \
+ $(shell DEB_HOST_ARCH=$host_arch $(dpkg_buildflags_indep) --export=cmdline); \
done; \
done
override_dh_auto_build-arch:
set -e; \
for target in $(targets); do \
- $(shell $(dpkg_buildflags_arch) --export=sh); \
+ host_arch=$(shell echo $target | grep -q ^i686 && echo i686 || echo amd64); \
+ $(shell DEB_HOST_ARCH=$host_arch $(dpkg_buildflags_arch) --export=sh); \
dh_auto_build --parallel -B$(build_gdb_dir)/$$target -- V=1; \
done
override_dh_auto_build-indep:
set -e; \
for target in $(targets); do \
+ host_arch=$(shell echo $target | grep -q ^i686 && echo i686 || echo amd64); \
for project in $(gdbserver_projects); do \
- $(shell $(dpkg_buildflags_indep) --export=sh); \
+ $(shell DEB_HOST_ARCH=$host_arch $(dpkg_buildflags_indep) --export=sh); \
dh_auto_build --parallel -B$(build_gdbserver_dir)/$$target/$$project -- V=1; \
done; \
done
--- End Message ---
--- Begin Message ---
Source: gdb-mingw-w64
Source-Version: 13.1
Done: Stephen Kitt <sk...@debian.org>
We believe that the bug you reported is fixed in the latest version of
gdb-mingw-w64, 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 1063...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Stephen Kitt <sk...@debian.org> (supplier of updated gdb-mingw-w64 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: SHA512
Format: 1.8
Date: Thu, 08 Feb 2024 19:15:03 +0100
Source: gdb-mingw-w64
Architecture: source
Version: 13.1
Distribution: unstable
Urgency: medium
Maintainer: Stephen Kitt <sk...@debian.org>
Changed-By: Stephen Kitt <sk...@debian.org>
Closes: 1063359
Changes:
gdb-mingw-w64 (13.1) unstable; urgency=medium
.
* Specify the target architecture when calculating build flags.
Closes: #1063359.
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