From 8912b0e6b881fda271f3805622442e4d5ac1e286 Mon Sep 17 00:00:00 2001 From: Samuel Holland <samuel@sholland.org> Date: Fri, 8 Sep 2017 00:05:18 -0500 Subject: [PATCH 04/24] Require static native libraries when linking static executables 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. Fixes #54243 --- src/librustc_codegen_llvm/back/link.rs | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/src/librustc_codegen_llvm/back/link.rs b/src/librustc_codegen_llvm/back/link.rs index 8248385c12..9fc1991412 100644 --- a/src/librustc_codegen_llvm/back/link.rs +++ b/src/librustc_codegen_llvm/back/link.rs @@ -1592,8 +1592,8 @@ fn add_upstream_rust_crates(cmd: &mut dyn Linker, } } -// Link in all of our upstream crates' native dependencies. Remember that -// all of these upstream native dependencies are all non-static +// Link in all of our upstream crates' native dependencies. Remember that when +// linking libraries, these upstream native dependencies are all non-static // dependencies. We've got two cases then: // // 1. The upstream crate is an rlib. In this case we *must* link in the @@ -1637,7 +1637,14 @@ fn add_upstream_native_libraries(cmd: &mut dyn Linker, continue } match lib.kind { - NativeLibraryKind::NativeUnknown => cmd.link_dylib(&name.as_str()), + NativeLibraryKind::NativeUnknown => { + // When creating executables, match library linkage to that of the executable. + if crate_type == config::CrateType::Executable && sess.crt_static() { + cmd.link_staticlib(&name.as_str()) + } else { + cmd.link_dylib(&name.as_str()) + } + }, NativeLibraryKind::NativeFramework => cmd.link_framework(&name.as_str()), NativeLibraryKind::NativeStaticNobundle => { // Link "static-nobundle" native libs only if the crate they originate from -- 2.18.0