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Merge #257

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257: do not zero late resource memory on boot r=korken89 a=japaric

this is done using the `.uninit` linker section; this optimization was already
being applied to message buffers but I forgot to also apply it to late resources

Co-authored-by: Jorge Aparicio <jorge@japaric.io>
This commit is contained in:
bors[bot] 2019-10-22 05:29:23 +00:00 committed by GitHub
commit 7d2fa7014d
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1 changed files with 10 additions and 2 deletions
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12
macros/src/codegen/resources.rs
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@ -32,7 +32,11 @@ pub fn codegen(
cross_initialized: false,
} => (
util::cfg_core(*core, app.args.cores),
util::link_section("data", *core),
if expr.is_none() {
util::link_section_uninit(Some(*core))
} else {
util::link_section("data", *core)
},
),
// shared `static`s and cross-initialized resources need to be in `.shared` memory
@ -42,7 +46,11 @@ pub fn codegen(
} else {
None
},
None,
if expr.is_none() {
util::link_section_uninit(None)
} else {
None
},
),
};