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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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1
src/modules/module-protocol-pulse/module.h
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@ -47,6 +47,7 @@ struct module_info {
#define DEFINE_MODULE_INFO(name) \
__attribute__((used)) \
__attribute__((retain)) \
__attribute__((section("pw_mod_pulse_modules"))) \
__attribute__((aligned(__alignof__(struct module_info)))) \
const struct module_info name