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-rw-r--r--bootstrap/rust-1.64/0004-Use-static-native-libraries-when-linking-static-exec.patch66
1 files changed, 66 insertions, 0 deletions
diff --git a/bootstrap/rust-1.64/0004-Use-static-native-libraries-when-linking-static-exec.patch b/bootstrap/rust-1.64/0004-Use-static-native-libraries-when-linking-static-exec.patch
new file mode 100644
index 000000000..d069dc01e
--- /dev/null
+++ b/bootstrap/rust-1.64/0004-Use-static-native-libraries-when-linking-static-exec.patch
@@ -0,0 +1,66 @@
+From 02e95254eb1c037824780517a443314baf4b0f78 Mon Sep 17 00:00:00 2001
+From: Samuel Holland <samuel@sholland.org>
+Date: Fri, 8 Sep 2017 00:05:18 -0500
+Subject: [PATCH 04/14] Use static native libraries when linking static executables
+
+On ELF targets like Linux, gcc/ld will create a dynamically-linked
+executable without warning, even when passed `-static`, when asked to
+link to a `.so`. Avoid this confusing and unintended behavior by always
+using the static version of libraries when trying to link static
+executables.
+---
+ compiler/rustc_codegen_ssa/src/back/link.rs | 20 ++++++++++++++++----
+ 1 file changed, 16 insertions(+), 4 deletions(-)
+
+diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs
+index 63207803e327f..e98bcbe14c33c 100644
+--- a/compiler/rustc_codegen_ssa/src/back/link.rs
++++ b/compiler/rustc_codegen_ssa/src/back/link.rs
+@@ -1992,7 +1992,7 @@ fn linker_with_args<'a>(
+ // external build system already has the native dependencies defined, and it
+ // will provide them to the linker itself.
+ if sess.opts.unstable_opts.link_native_libraries {
+- add_upstream_native_libraries(cmd, sess, codegen_results);
++ add_upstream_native_libraries(cmd, sess, codegen_results, crate_type);
+ }
+
+ // Link with the import library generated for any raw-dylib functions.
+@@ -2593,8 +2593,7 @@ fn add_upstream_rust_crates<'a>(
+ }
+ }
+
+-/// Link in all of our upstream crates' native dependencies. Remember that all of these upstream
+-/// native dependencies are all non-static dependencies. We've got two cases then:
++/// Link in all of our upstream crates' native dependencies. We have two cases:
+ ///
+ /// 1. The upstream crate is an rlib. In this case we *must* link in the native dependency because
+ /// the rlib is just an archive.
+@@ -2612,6 +2611,7 @@ fn add_upstream_native_libraries(
+ cmd: &mut dyn Linker,
+ sess: &Session,
+ codegen_results: &CodegenResults,
++ crate_type: CrateType,
+ ) {
+ let mut last = (None, NativeLibKind::Unspecified, None);
+ for &cnum in &codegen_results.crate_info.used_crates {
+@@ -2636,7 +2636,19 @@ fn add_upstream_native_libraries(
+ NativeLibKind::Dylib { as_needed } => {
+ cmd.link_dylib(name, verbatim, as_needed.unwrap_or(true))
+ }
+- NativeLibKind::Unspecified => cmd.link_dylib(name, verbatim, true),
++ NativeLibKind::Unspecified => {
++ // On some targets, like Linux, linking a static executable inhibits using
++ // dylibs at all. Force native libraries to be static, even if for example
++ // an upstream rlib was originally linked against a native shared library.
++ if crate_type == config::CrateType::Executable
++ && sess.crt_static(Some(crate_type))
++ && !sess.target.options.crt_static_allows_dylibs
++ {
++ cmd.link_staticlib(name, verbatim)
++ } else {
++ cmd.link_dylib(name, verbatim, true)
++ }
++ },
+ NativeLibKind::Framework { as_needed } => {
+ cmd.link_framework(name, as_needed.unwrap_or(true))
+ }