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57 lines
2.6 KiB
Diff
57 lines
2.6 KiB
Diff
From b0de26f4cef75c63a7901990ed92fe0616a971fc Mon Sep 17 00:00:00 2001
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From: Samuel Holland <samuel@sholland.org>
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Date: Fri, 8 Sep 2017 00:05:18 -0500
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Subject: [PATCH 04/12] Require static native libraries when linking static
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executables
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On ELF targets like Linux, gcc/ld will create a dynamically-linked
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executable without warning, even when passed `-static`, when asked to
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link to a `.so`. Avoid this confusing and unintended behavior by always
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using the static version of libraries when trying to link static
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executables.
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Fixes #54243
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---
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src/librustc_codegen_ssa/back/link.rs | 18 ++++++++++++++----
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1 file changed, 14 insertions(+), 4 deletions(-)
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diff --git a/src/librustc_codegen_ssa/back/link.rs b/src/librustc_codegen_ssa/back/link.rs
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index d5a56f6a0..bb06d80d8 100644
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--- a/src/librustc_codegen_ssa/back/link.rs
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+++ b/src/librustc_codegen_ssa/back/link.rs
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@@ -1548,9 +1548,7 @@ fn add_upstream_rust_crates<'a, B: ArchiveBuilder<'a>>(cmd: &mut dyn Linker,
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}
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}
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-// Link in all of our upstream crates' native dependencies. Remember that
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-// all of these upstream native dependencies are all non-static
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-// dependencies. We've got two cases then:
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+// Link in all of our upstream crates' native dependencies. We have two cases:
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//
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// 1. The upstream crate is an rlib. In this case we *must* link in the
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// native dependency because the rlib is just an archive.
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@@ -1593,7 +1591,19 @@ pub fn add_upstream_native_libraries(cmd: &mut dyn Linker,
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continue
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}
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match lib.kind {
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- NativeLibraryKind::NativeUnknown => cmd.link_dylib(&name.as_str()),
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+ NativeLibraryKind::NativeUnknown => {
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+ // On some targets, like Linux, linking a static executable inhibits using
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+ // dylibs at all. Force native libraries to be static, even if for example
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+ // an upstream rlib was originally linked against a native shared library.
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+ if crate_type == config::CrateType::Executable
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+ && sess.crt_static()
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+ && !sess.target.target.options.crt_static_allows_dylibs
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+ {
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+ cmd.link_staticlib(&name.as_str())
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+ } else {
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+ cmd.link_dylib(&name.as_str())
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+ }
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+ },
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NativeLibraryKind::NativeFramework => cmd.link_framework(&name.as_str()),
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NativeLibraryKind::NativeStaticNobundle => {
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// Link "static-nobundle" native libs only if the crate they originate from
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--
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2.22.0
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