From ea4c64f9ec9aeaeda27ced2a46307ac060dddd4a Mon Sep 17 00:00:00 2001 From: Yuxiang Zhu Date: Wed, 12 Feb 2020 10:44:10 +0800 Subject: [PATCH] add mips/mips64 compiler-rt fallbacks so that libgcc is not required This adds compiler-rt fallbacks for mips and mips64 arches. Solves linking issues like https://github.com/rust-lang/rust/issues/57820. Signed-off-by: Yuxiang Zhu --- build.rs | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/build.rs b/build.rs index b520b6247..00418a95c 100644 --- a/build.rs +++ b/build.rs @@ -396,6 +396,26 @@ mod c { } } + if target_arch == "mips" { + cfg.flag("-msoft-float"); + sources.extend(&[("__bswapsi2", "bswapsi2.c")]); + } + + if target_arch == "mips64" { + sources.extend(&[ + ("__extenddftf2", "extenddftf2.c"), + ("__netf2", "comparetf2.c"), + ("__addtf3", "addtf3.c"), + ("__multf3", "multf3.c"), + ("__subtf3", "subtf3.c"), + ("__fixtfsi", "fixtfsi.c"), + ("__floatsitf", "floatsitf.c"), + ("__fixunstfsi", "fixunstfsi.c"), + ("__floatunsitf", "floatunsitf.c"), + ("__fe_getround", "aarch64/fp_mode.c"), + ]); + } + // Remove the assembly implementations that won't compile for the target if llvm_target[0] == "thumbv6m" || llvm_target[0] == "thumbv8m.base" { let mut to_remove = Vec::new();