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| author | bors <bors@rust-lang.org> | 2022-04-25 16:14:54 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2022-04-25 16:14:54 +0000 |
| commit | 18b53cefdf7456bf68937b08e377b7e622a115c2 (patch) | |
| tree | ec10fca90b5abb40360870b999e9151715e5a2ee /compiler/rustc_codegen_llvm/src | |
| parent | 7417110cefda899a685a77557ac2bd7d7ee07e54 (diff) | |
| parent | 6f9b2b32476dbd3453e296bea54726d469e471c0 (diff) | |
| download | rust-18b53cefdf7456bf68937b08e377b7e622a115c2.tar.gz rust-18b53cefdf7456bf68937b08e377b7e622a115c2.zip | |
Auto merge of #95604 - nbdd0121:used2, r=petrochenkov
Generate synthetic object file to ensure all exported and used symbols participate in the linking Fix #50007 and #47384 This is the synthetic object file approach that I described in https://github.com/rust-lang/rust/pull/95363#issuecomment-1079932354, allowing all exported and used symbols to be linked while still allowing them to be GCed. Related #93791, #95363 r? `@petrochenkov` cc `@carbotaniuman`
Diffstat (limited to 'compiler/rustc_codegen_llvm/src')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/back/lto.rs | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs index 3f5957bdb6e..5c63bd8c1bd 100644 --- a/compiler/rustc_codegen_llvm/src/back/lto.rs +++ b/compiler/rustc_codegen_llvm/src/back/lto.rs @@ -16,7 +16,7 @@ use rustc_errors::{FatalError, Handler}; use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::bug; use rustc_middle::dep_graph::WorkProduct; -use rustc_middle::middle::exported_symbols::SymbolExportLevel; +use rustc_middle::middle::exported_symbols::{SymbolExportInfo, SymbolExportLevel}; use rustc_session::cgu_reuse_tracker::CguReuse; use rustc_session::config::{self, CrateType, Lto}; use tracing::{debug, info}; @@ -55,8 +55,8 @@ fn prepare_lto( Lto::No => panic!("didn't request LTO but we're doing LTO"), }; - let symbol_filter = &|&(ref name, level): &(String, SymbolExportLevel)| { - if level.is_below_threshold(export_threshold) { + let symbol_filter = &|&(ref name, info): &(String, SymbolExportInfo)| { + if info.level.is_below_threshold(export_threshold) || info.used { Some(CString::new(name.as_str()).unwrap()) } else { None |