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gcc-plugin: Allow the use of the SHF_LINK_ORDER section flag to discard unused notes. (Experimental).

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This commit is contained in:
Nick Clifton 2020-10-02 13:29:31 +01:00
parent ad2a3b8d06
commit d94f0f89ce
2 changed files with 36 additions and 22 deletions
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56
annobin.spec
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@ -1,7 +1,7 @@
Name: annobin
Summary: Annotate and examine compiled binary files
Version: 9.34
Version: 9.35
Release: 1%{?dist}
License: GPLv3+
# ProtocolURL: https://fedoraproject.org/wiki/Toolchain/Watermark
@ -33,20 +33,20 @@ License: GPLv3+
# checking logic or when building on RHEL-7 or earlier.
%global with_hard_gcc_version_requirement 1
# # Do not build the annobin plugin with annotation enabled.
# # This is because if we are bootstrapping a new build environment we can have
# # a new version of gcc installed, but without a new of annobin installed.
# # (i.e. we are building the new version of annobin to go with the new version
# # of gcc). If the *old* annobin plugin is used whilst building this new
# # version, the old plugin will complain that version of gcc for which it
# # was built is different from the version of gcc that is now being used, and
# # then it will abort.
%bcond_without annobin_plugin
# Allow the building of annobin without using annobin itself.
# This is because if we are bootstrapping a new build environment we can have
# a new version of gcc installed, but without a new of annobin installed.
# (i.e. we are building the new version of annobin to go with the new version
# of gcc). If the *old* annobin plugin is used whilst building this new
# version, the old plugin will complain that version of gcc for which it
# was built is different from the version of gcc that is now being used, and
# then it will abort.
#
# Suppress this for BZ 1630550.
# The problem should now only arise when rebasing to a new major version
# of gcc, in which case the undefine below can be temporarily reinstated.
#
# %%undefine _annotated_build
# The default is to use annobin. cf BZ 1630550.
%if %{without annobin_plugin}
%undefine _annotated_build
%endif
#---------------------------------------------------------------------------------
@ -229,15 +229,26 @@ CONFIG_ARGS="$CONFIG_ARGS --without-test"
# Rebuild the plugin(s), this time using the plugin itself! This
# ensures that the plugin works, and that it contains annotations
# of its own. This could mean that we end up with a plugin with
# double annotations in it. (If the build system enables annotations
# for plugins by default). I have not tested this yet, but I think
# that it should be OK.
# of its own.
cp gcc-plugin/.libs/annobin.so.0.0.0 %{_tmppath}/tmp_annobin.so
make -C gcc-plugin clean
BUILD_FLAGS="-fplugin=%{_tmppath}/tmp_annobin.so -fplugin-arg-tmp_annobin-rename"
# If building on RHEL7, enable the next option as the .attach_to_group assembler pseudo op is not available in the assembler.
BUILD_FLAGS="-fplugin=%{_tmppath}/tmp_annobin.so"
%if %{with annobin_plugin}
# Disable the standard annobin plugin so that we do get conflicts.
# Note: the "-fplugin=annobin" is here, despite the fact that it will also
# be automatically added to the gcc command line via
# "-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1" because of a bug in gcc's
# plugin command line options handling. GCC will issue an error saying that
# there is no plugin called "annobin" matching the -fplugin-arg-annobin-disable
# option, despite the fact that there patently is.
BUILD_FLAGS="$BUILD_FLAGS -fplugin=annobin -fplugin-arg-annobin-disable"
%endif
# If building on RHEL7, enable the next option as the .attach_to_group
# assembler pseudo op is not available in the assembler.
# BUILD_FLAGS="$BUILD_FLAGS -fplugin-arg-tmp_annobin-no-attach"
make -C gcc-plugin CXXFLAGS="%{optflags} $BUILD_FLAGS"
rm %{_tmppath}/tmp_annobin.so
@ -301,8 +312,11 @@ fi
#---------------------------------------------------------------------------------
%changelog
* Thu Oct 01 2020 Nick Clifton <nickc@redhat.com> - 9.35-1
- Allow the use of the SHF_LINK_ORDER section flag to discard unused notes. (Experimental).
* Mon Sep 28 2020 Nick Clifton <nickc@redhat.com> - 9.34-1
- Enable the Clang and LLVM plugins by default. (Experimental).
- Enable the build and installation of the LLVM and Clang plugins. (Experimental).
* Mon Sep 21 2020 Nick Clifton <nickc@redhat.com> - 9.33-1
- gcc-plugin: Fix test for empty PowerPC sections. (#1880634)

2
sources
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@ -1 +1 @@
SHA512 (annobin-9.34.tar.xz) = 200996596df9271edacf7810e2c15f8a336d2dd7f7d711a0841671b807890bea15530fa2c929f96c2966c35d0b6130812348e6642ad5bb4cc6646fc7a261b871
SHA512 (annobin-9.35.tar.xz) = c7a8ae040bceea23725561fe27441c242692e7ca21bbae5f1c330acf2567963bc0b9ba92046f485d0627adeb1a9bd846b5f77cdfffe4bb158d39daf3d826e993