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68d400e374
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46 Commits

Author SHA1 Message Date
Zbigniew Jędrzejewski-Szmek
68d400e374 docs: add more quoting 
Also some minor grammar fixups and "s/link editor/linker/" when
talking about ld.
 2022-01-20 22:04:59 +01:00
Zbigniew Jędrzejewski-Szmek
38fc865990 ELF notes: rework the description of disabling 
I changed the definitions in package-notes to not do anything if
%_package_note_file is undefined. The other macros won't work if it is
not defined anyway, so this is quite natural. With this, undefining
%_package_note_file becomes the most comprehensive mechanism to disable
the feature. (Undefining %_package_note_flags still works so backwards
compat is preserved.)

The new mechanism will work once
https://src.fedoraproject.org/rpms/package-notes/pull-request/1 is merged.
But I don't think it is necessary to add a version requirement here, since
we're only providing the docs here.
 2022-01-20 22:03:18 +01:00
Zbigniew Jędrzejewski-Szmek
57edf0cad7 Inject linker script to generate package notes 
https://fedoraproject.org/wiki/Changes/Package_information_on_ELF_objects
Macros are used only if defined. Definitions are provided in the
package-notes-srpm-macros, which is now Required (on Fedora).
 2022-01-17 09:20:00 +01:00
Tom Stellard
9183c1c8d4 Call %set_build_flags before %build, %check, and %install stages 
https://fedoraproject.org/wiki/Changes/SetBuildFlagsBuildCheck
 2022-01-14 20:57:22 +00:00
Zbigniew Jędrzejewski-Szmek
0732587e7b Change %define to %global 
The packaging guidelines say that %global should is preferred.
 2022-01-13 14:05:59 +01:00
Zbigniew Jędrzejewski-Szmek
1aa0c42cd3 buildflags: use consistent indentation and other minor fixes 2022-01-13 14:05:59 +01:00
Tom Stellard
95f28bd10b Add -Wl,--build-id=sha1 to the default LDFLAGS 
This is already the default for ld.bfd, so this is effectively a no-op
for most packages.  However, lld defaults different build-id algorithm
that the RPM build process does not support, so it needs this flag.

This flag can be overriden by setting the %_build_id_flags macro,
which packages could do if they wanted to use a more secure build-id
algorithm.
 2021-12-15 01:24:25 +00:00
Florian Weimer
d1702bd08e buildflags.md: Fix formatting issue in %build_fflags documentation 2021-12-07 21:25:40 +01:00
Florian Weimer
aee37a70c1 buildflags.md: Document source tree patching during %configure 2021-11-16 17:43:36 +01:00
Florian Weimer
69360e1d57 buildflags.md: Fix typo introduced in commit 65028a4d 2021-11-16 17:12:32 +01:00
Florian Weimer
f33780a5e7 buildflags.md: Fix typos introduce in commit a3cf0d66 2021-11-16 17:05:39 +01:00
Florian Weimer
ff647eda53 buildflags.md: Document the post-processing on ELF files 2021-11-16 14:51:13 +01:00
Florian Weimer
65028a4d00 buildflags.md: Document -fasynchronous-unwind-tables as generic option 
And mention it is disabled on armhfp.
 2021-11-15 15:59:36 +01:00
Florian Weimer
23e5f0dbd6 buildflags.md: Mentioned that annobin is only on for gcc, !armhpf 2021-11-15 15:58:09 +01:00
Florian Weimer
a3cf0d66a7 buildflags.md: Treat -fstack-clash-protection as a generic flag 
And mention the two exceptions (armhfp, and for clang, aarch64).
 2021-11-15 15:51:29 +01:00
Florian Weimer
f824dc72a1 buildflags.md: Document LTO and how to disable it 2021-11-15 15:44:56 +01:00
Florian Weimer
4a0c38832e buildflags.md: Document build_cc, build_cxx, build_cpp 2021-11-15 15:34:32 +01:00
Florian Weimer
a9123ea1ac buildflags.md: Move toolchain selection documentation from macros file 2021-11-15 15:34:15 +01:00
Florian Weimer
ac57cc99aa buildflags.md: Mention optional -fcommon under compiler flags 2021-11-15 15:26:05 +01:00
Florian Weimer
92959df563 buildflags.md: Document _ld_as_needed, --as-needed 2021-11-15 15:25:49 +01:00
Florian Weimer
76114fa60e buildflags.md: Document -mbranch-protection=standard for aarch64 2021-11-15 12:32:38 +01:00
Florian Weimer
92261d7c20 buildflags.md: Drop mentions of ppc64 
The ppc64 architecture is no longer built.
 2021-11-15 12:31:16 +01:00
Jeff Law
3e759e70ac Allow conditionally adding -fcommon to CFLAGS by defining %_legacy_common_support 
Co-Authored-By: Miro Hrončok <miro@hroncok.cz>
 2020-01-23 14:25:11 +01:00
Pavel Raiskup
e345575f97 %set_build_flags: define LT_SYS_LIBRARY_PATH 
This config is to let libtool recognize that our 64bit variant of
%_libdir is actually on the standard/default library path, so libtool
doesn't think it has to be hard-wired as RPATH.  This is proper solution
for libtool RPATH issues described in:

  https://docs.fedoraproject.org/en-US/packaging-guidelines/#_removing_rpath

The libtool script/macros (new enough, v2.4.6+) honor this variable when
it isn't possible to detect the system-wide default library path.  It is
e.g. able to parse /etc/ld.so.* configuration, but there's no info about
/usr/lib64 on Fedora.

So to not force everybody to do:

   %configure LT_SYS_LIBRARY_PATH=...

... rather set this system-wide.  This is low-risk change since
older libtool scripts don't use this variable, and really no other
tools should.
 2019-12-03 15:04:51 +01:00
Miro Hrončok
f29acc639b buildflags.md: Fix the packaging guidelines link 2019-01-18 22:38:59 +01:00
Florian Weimer
e80fa1344a Build flags: Add support for extension builders (#1543394) 2018-12-20 11:34:27 +01:00
David Hugh Malcolm
521c1a9dd5 buildflags.md: fix typo 2018-07-11 13:43:53 +00:00
Florian Weimer
a5c98437e2 Build flags: Require SSE2 on i686 (#1592212) 2018-06-18 11:48:31 +02:00
Florian Weimer
f25f1b7627 Reflect -fasynchronous-unwind-tables GCC default on POWER (#1550914) 2018-05-02 11:55:12 +02:00
Florian Weimer
6b620c91fb Use plain -fcf-protection compiler flag, without -mcet (#1570823) 2018-05-02 11:39:39 +02:00
Florian Weimer
d5133f9acc Use -funwind-tables on POWER 
Ideally, the GCC defaults should change as well, but let's put this into
redhat-rpm-config, too, similarly to -fasynchronous-unwind-tables.
 2018-02-28 10:45:12 +01:00
Florian Weimer
0448c23b73 Document the use of -Wl,z,lazy 2018-02-24 21:46:59 +01:00
Igor Gnatenko
6bc9480501
buildflags.md: add missing quote 
Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>
 2018-02-09 17:42:37 +01:00
Florian Weimer
ddb845537c Fix typo 2018-02-05 14:40:59 +01:00
Florian Weimer
fa08f0e5a1 Add RPM macros for compiler/linker flags 2018-02-04 18:00:40 +01:00
Florian Weimer
8d6c6d0761 Build flags: Disable -z defs again (#1535422) 2018-01-29 15:18:11 +01:00
Florian Weimer
1b296f01fc Build flags: Enable CET on i686, x86_64 (#1538725) 2018-01-29 15:18:11 +01:00
Florian Weimer
6e5a75d61e Build flags: Switch to generic tuning on i686 (#1538693) 
This matches what the gcc package already does by default.
 2018-01-25 16:22:54 +01:00
Florian Weimer
a013956e4f Build flags: Mention -fplugin-arg-annobin-disable 2018-01-23 16:25:52 +01:00
Florian Weimer
c873752b33 Build flags: Improve description of -z defs remedies 2018-01-23 11:42:25 +01:00
Florian Weimer
078af19261 Link with -z defs by default (#1535422) 2018-01-22 16:01:54 +01:00
Florian Weimer
75a53b7ea3 Make armhfp flags consistent with GCC defaults 2018-01-22 15:41:54 +01:00
Florian Weimer
72b1044620 Build flags: Consistently use x86_64 (Fedora architecture name) 2018-01-22 15:18:23 +01:00
Florian Weimer
e43ce312b7 Make use of -fasynchronous-unwind-tables more explicit (#1536431) 2018-01-22 15:17:14 +01:00
Florian Weimer
5b96b31cac Fix typo in build flags documentation 2018-01-22 14:53:38 +01:00
Florian Weimer
0d162176e9 Document build flags 2018-01-22 14:28:15 +01:00