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treewide: retain sections to prevent linker garbage collection

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The linker may remove sections that are actually used when
"--gc-sections" and "-z start-stop-gc" is set. Add the `retain`
attribute to prevent that.

Furthermore, fix the alignment for `pwtest_suite_decl` objects.

See: #2292
See: https://lld.llvm.org/ELF/start-stop-gc.html
See: https://github.com/systemd/systemd/issues/21847
See: https://github.com/systemd/systemd/pull/21855
This commit is contained in:
Barnabás Pőcze 2022-04-13 18:13:12 +02:00
parent 22fc9eec35
commit e28a052105
3 changed files with 6 additions and 3 deletions
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2
test/pwtest-implementation.h
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@ -131,7 +131,7 @@ void _pwtest_add(struct pwtest_context *ctx,
struct pwtest_suite_decl {
const char *name;
enum pwtest_result (*setup)(struct pwtest_context *, struct pwtest_suite *);
} __attribute__((aligned(16)));
};
#endif /* PWTEST_IMPLEMENTATION_H */