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Build flags: Switch to generic tuning on i686 (#1538693)

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This matches what the gcc package already does by default.
This commit is contained in:
Florian Weimer 2018-01-25 16:22:54 +01:00
parent a013956e4f
commit 6e5a75d61e
3 changed files with 9 additions and 3 deletions
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5
buildflags.md
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@ -231,7 +231,10 @@ tuning in the `gcc` package. These settings are:
with other ARMv7-A implementations). `-mabi=aapcs-linux` switches to
the AAPCS ABI for GNU/Linux.
* **i686**: `-march=i686` is used to select a minmum support CPU level
of i686 (corresponding to the Pentium Pro).
of i686 (corresponding to the Pentium Pro). `-mtune=generic` activates
tuning for a current blend of CPUs (under the assumption that most
users of i686 packages obtain them through an x86_64 installation
on current hardware).
* **ppc64le**: `-mcpu=power8 -mtune=power8` selects a minimum supported
CPU level of POWER8 (the first CPU with ppc64le support) and tunes
for POWER8.

5
redhat-rpm-config.spec
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@ -6,7 +6,7 @@
Summary: Red Hat specific rpm configuration files
Name: redhat-rpm-config
Version: 84
Version: 85
Release: 1%{?dist}
# No version specified.
License: GPL+
@ -157,6 +157,9 @@ install -p -m 755 -t %{buildroot}%{_rpmconfigdir} kmod.prov
%{_rpmconfigdir}/macros.d/macros.kmp
%changelog
* Thu Jan 25 2018 Florian Weimer <fweimer@redhat.com> - 85-1
- Build flags: Switch to generic tuning on i686 (#1538693)
* Mon Jan 22 2018 Florian Weimer <fweimer@redhat.com> - 84-1
- Link with -z defs by default (#1535422)

2
rpmrc
View File

@ -3,7 +3,7 @@ include: /usr/lib/rpm/rpmrc
optflags: i386 %{__global_compiler_flags} -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection
optflags: i486 %{__global_compiler_flags} -m32 -march=i486 -fasynchronous-unwind-tables -fstack-clash-protection
optflags: i586 %{__global_compiler_flags} -m32 -march=i586 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection
optflags: i686 %{__global_compiler_flags} -m32 -march=i686 -fasynchronous-unwind-tables -fstack-clash-protection
optflags: i686 %{__global_compiler_flags} -m32 -march=i686 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection
optflags: athlon %{__global_compiler_flags} -m32 -march=athlon -fasynchronous-unwind-tables -fstack-clash-protection
optflags: ia64 %{__global_compiler_flags}
optflags: x86_64 %{__global_compiler_flags} -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection