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Set arch specific flags for frame pointers support

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This commit is contained in:
Davide Cavalca 2023-01-05 08:00:20 -08:00
parent f080fb9562
commit 9ce7719338
4 changed files with 23 additions and 16 deletions
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9
buildflags.md
View File

@ -489,9 +489,12 @@ by undefining the `%_annotated_build` RPM macro (see above). Binary
watermarks are currently disabled on armhpf, and with the `clang`
toolchain.
If frame pointers are enabled by default (via `%_include_frame_pointers),
the `-fno-omit-frame-pointer` and `-mno-omit-leaf-frame-pointer` flags will
be added.
If frame pointers are enabled by default (via `%_include_frame_pointers`),
the `-fno-omit-frame-pointer` will be added on all architectures. Additional
flags will be added on specific architectures:
* `-mno-omit-leaf-frame-pointer` on x86_64 and aarch64
* `-mbackchain` on s390x
### Architecture-specific compiler flags

7
macros
View File

@ -338,7 +338,10 @@ print(result)
# https://fedoraproject.org/wiki/Changes/fno-omit-frame-pointer
# Use "%undefine _include_frame_pointers" to disable.
%_include_frame_pointers 1
%_frame_pointers_cflags %{?_include_frame_pointers:-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer}
%_frame_pointers_cflags %{?_include_frame_pointers:-fno-omit-frame-pointer}
%_frame_pointers_cflags_x86_64 %{?_include_frame_pointers:-mno-omit-leaf-frame-pointer}
%_frame_pointers_cflags_aarch64 %{?_include_frame_pointers:-mno-omit-leaf-frame-pointer}
%_frame_pointers_cflags_s390x %{?_include_frame_pointers:-mbackchain}
# Fail linking if there are undefined symbols. Required for proper
# ELF symbol versioning support. Disabled by default.
@ -381,7 +384,7 @@ print(result)
# If they are needed then add "%define _legacy_common_support 1" to the spec file.
%_legacy_options %{?_legacy_common_support: -fcommon}
%__global_compiler_flags %{_general_options} %{_warning_options} %{_preprocessor_defines} %{_hardened_cflags} %{_annotation_cflags} %{_frame_pointers_cflags} %{_legacy_options}
%__global_compiler_flags %{_general_options} %{_warning_options} %{_preprocessor_defines} %{_hardened_cflags} %{_annotation_cflags} %{_legacy_options}
# Automatically trim changelog entries after 2 years
%_changelog_trimage %{expr:2*365*24*60*60}

1
redhat-rpm-config.spec
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@ -223,6 +223,7 @@ install -p -m 644 -t %{buildroot}%{_rpmluadir}/fedora/srpm forge.lua
%changelog
* Wed Jan 4 2023 Davide Cavalca <dcavalca@fedoraproject.org> - 239-1
- Enable frame pointers by default
- Set arch specific flags for frame pointers support
* Tue Jan 3 2023 Miro Hrončok <mhroncok@redhat.com> - 238-1
- Set %%source_date_epoch_from_changelog to 1

22
rpmrc
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@ -1,22 +1,22 @@
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 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection
optflags: athlon %{__global_compiler_flags} -m32 -march=athlon -fasynchronous-unwind-tables -fstack-clash-protection
optflags: x86_64 %{__global_compiler_flags} -m64 %{__cflags_arch_x86_64} -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection
optflags: i386 %{__global_compiler_flags} -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection %{_frame_pointers_cflags}
optflags: i486 %{__global_compiler_flags} -m32 -march=i486 -fasynchronous-unwind-tables -fstack-clash-protection %{_frame_pointers_cflags}
optflags: i586 %{__global_compiler_flags} -m32 -march=i586 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection %{_frame_pointers_cflags}
optflags: i686 %{__global_compiler_flags} -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection %{_frame_pointers_cflags}
optflags: athlon %{__global_compiler_flags} -m32 -march=athlon -fasynchronous-unwind-tables -fstack-clash-protection %{_frame_pointers_cflags}
optflags: x86_64 %{__global_compiler_flags} -m64 %{__cflags_arch_x86_64} -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection %{_frame_pointers_cflags} %{_frame_pointers_cflags_x86_64}
optflags: ppc64le %{__global_compiler_flags} -m64 %{__cflags_arch_ppc64le} -fasynchronous-unwind-tables -fstack-clash-protection
optflags: ppc64le %{__global_compiler_flags} -m64 %{__cflags_arch_ppc64le} -fasynchronous-unwind-tables -fstack-clash-protection %{_frame_pointers_cflags}
# TODO: Remove armv7hl once f36 goes EOL.
optflags: armv7hl %{__global_compiler_flags} -march=armv7-a -mfpu=vfpv3-d16 -mtune=generic-armv7-a -mabi=aapcs-linux -mfloat-abi=hard
optflags: armv7hl %{__global_compiler_flags} -march=armv7-a -mfpu=vfpv3-d16 -mtune=generic-armv7-a -mabi=aapcs-linux -mfloat-abi=hard %{_frame_pointers_cflags}
optflags: s390x %{__global_compiler_flags} -m64 %{__cflags_arch_s390x} -fasynchronous-unwind-tables -fstack-clash-protection
optflags: s390x %{__global_compiler_flags} -m64 %{__cflags_arch_s390x} -fasynchronous-unwind-tables -fstack-clash-protection %{_frame_pointers_cflags} %{_frame_pointers_cflags_s390x}
optflags: aarch64 %{__global_compiler_flags} -mbranch-protection=standard -fasynchronous-unwind-tables %[ "%{toolchain}" == "gcc" ? "-fstack-clash-protection" : "" ]
optflags: aarch64 %{__global_compiler_flags} -mbranch-protection=standard -fasynchronous-unwind-tables %[ "%{toolchain}" == "gcc" ? "-fstack-clash-protection" : "" ] %{_frame_pointers_cflags} %{_frame_pointers_cflags_aarch64}
optflags: riscv64 %{__global_compiler_flags} -fasynchronous-unwind-tables %[ "%{toolchain}" == "gcc" ? "-fstack-clash-protection" : "" ]
optflags: riscv64 %{__global_compiler_flags} -fasynchronous-unwind-tables %[ "%{toolchain}" == "gcc" ? "-fstack-clash-protection" : "" ] %{_frame_pointers_cflags}
# set build arch to fedora buildarches on hardware capable of running it
# saves having to do rpmbuild --target=