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Reflect -fasynchronous-unwind-tables GCC default on POWER (#1550914)

This commit is contained in:
Florian Weimer 2018-05-02 11:55:12 +02:00
parent 6b620c91fb
commit f25f1b7627
3 changed files with 11 additions and 11 deletions
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9
buildflags.md
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@ -259,15 +259,12 @@ not), but their selection depends on the architecture:
handlers. It also makes performance and debugging tools more
useful because unwind information is available without having to
install (and load) debugging ienformation.
Asynchronous unwind tables are enabled for aarch64, i686, s390x,
and x86_64. They are not needed on armhfp, ppc64 and ppc64le due
to architectural differences in stack management. On these
Asynchronous unwind tables are enabled for aarch64, i686, ppc64,
ppc64le, s390x, and x86_64. They are not needed on armhfp due to
architectural differences in stack management. On these
architectures, `-fexceptions` (see above) still enables regular
unwind tables (or they are enabled by default even without this
option).
* `-funwind-tables`: A subset of the unwind information restricted
to actual call sites. Used on ppc64, ppc64le. Also implied by
`-fexceptions`.
In addition, `redhat-rpm-config` re-selects the built-in default
tuning in the `gcc` package. These settings are:

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: 109
Version: 110
Release: 1%{?dist}
# No version specified.
License: GPL+
@ -184,6 +184,9 @@ install -p -m 755 -t %{buildroot}%{_rpmconfigdir} kmod.prov
%{_rpmconfigdir}/macros.d/macros.kmp
%changelog
* Wed May 2 2018 Florian Weimer <fweimer@redhat.com> - 110-1
- Reflect -fasynchronous-unwind-tables GCC default on POWER (#1550914)
* Wed May 2 2018 Florian Weimer <fweimer@redhat.com> - 109-1
- Use plain -fcf-protection compiler flag, without -mcet (#1570823)

8
rpmrc
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@ -24,12 +24,12 @@ optflags: sparc64v %{__global_compiler_flags} -m64 -mcpu=niagara
optflags: m68k %{__global_compiler_flags}
optflags: ppc %{__global_compiler_flags} -m32 -funwind-tables
optflags: ppc %{__global_compiler_flags} -m32 -fasynchronous-unwind-tables
optflags: ppciseries %{__global_compiler_flags} -m32
optflags: ppcpseries %{__global_compiler_flags} -m32
optflags: ppc64 %{__global_compiler_flags} -m64 -funwind-tables -fstack-clash-protection
optflags: ppc64p7 %{__global_compiler_flags} -m64 -O3 -mcpu=power7 -mtune=power7 -funwind-tables -fstack-clash-protection
optflags: ppc64le %{__global_compiler_flags} -m64 -mcpu=power8 -mtune=power8 -funwind-tables -fstack-clash-protection
optflags: ppc64 %{__global_compiler_flags} -m64 -fasynchronous-unwind-tables -fstack-clash-protection
optflags: ppc64p7 %{__global_compiler_flags} -m64 -O3 -mcpu=power7 -mtune=power7 -fasynchronous-unwind-tables -fstack-clash-protection
optflags: ppc64le %{__global_compiler_flags} -m64 -mcpu=power8 -mtune=power8 -fasynchronous-unwind-tables -fstack-clash-protection
optflags: ppc64iseries %{__global_compiler_flags} -m64
optflags: ppc64pseries %{__global_compiler_flags} -m64
optflags: ppc8260 %{__global_compiler_flags} -m32