From: Ximin Luo <infinity0@debian.org>
Date: Sun, 5 Jul 2020 14:06:52 +0000 (+0100)
Subject: Don't split dwarf debug for a fully-reproducible build
X-Git-Tag: archive/raspbian/1.43.0+dfsg1-1+rpi1^2~24
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=9c6799bcb89f406596e7e9fb5786953889255713;p=rustc.git

Don't split dwarf debug for a fully-reproducible build

Bug: https://github.com/rust-lang/rust/issues/34902


Gbp-Pq: Name u-reproducible-build.patch
---

diff --git a/src/librustc_llvm/build.rs b/src/librustc_llvm/build.rs
index 9b4f03b3fb..b2799db53c 100644
--- a/src/librustc_llvm/build.rs
+++ b/src/librustc_llvm/build.rs
@@ -121,6 +121,11 @@ fn main() {
     let mut cfg = cc::Build::new();
     cfg.warnings(false);
     for flag in cxxflags.split_whitespace() {
+        // Split-dwarf gives unreproducible DW_AT_GNU_dwo_id so don't do it
+        if flag == "-gsplit-dwarf" {
+            continue;
+        }
+
         // Ignore flags like `-m64` when we're doing a cross build
         if is_crossed && flag.starts_with("-m") {
             continue;