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wasm32: Default to a "static" relocation model

LLVM 9 is adding support for a "pic" relocation model for wasm code,
which is quite different than the current model. In order to preserve
the mode of compilation that we have today default to "static" to ensure
that we don't accidentally start creating experimental relocatable
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alexcrichton committed Apr 4, 2019
1 parent 52980d0 commit 471db2b84bbeafb128bae8a8a9cf7fed13d2df4f
Showing with 9 additions and 0 deletions.
  1. +9 −0 src/librustc_target/spec/
@@ -118,6 +118,15 @@ pub fn options() -> TargetOptions {


// This has no effect in LLVM 8 or prior, but in LLVM 9 and later when
// PIC code is implemented this has quite a drastric effect if it stays
// at the default, `pic`. In an effort to keep wasm binaries as minimal
// as possible we're defaulting to `static` for now, but the hope is
// that eventually we can ship a `pic`-compatible standard library which
// works with `static` as well (or works with some method of generating
// non-relative calls and such later on).
relocation_model: "static".to_string(),

.. Default::default()

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