From a806f9dc441b969424b35e916e7f6ae5e4dc81c7 Mon Sep 17 00:00:00 2001
From: Eric Rahm <erahm@google.com>
Date: Fri, 13 Oct 2023 20:01:15 +0000
Subject: [PATCH] Use zstd to compress debug info in rust libraries

We can save a significant amount of disk space by compressing debug info
in rust builds. This adds a flag that configures compressing debug info
at the link stage for rust binaries.

Test: m
Bug: 305277519
Change-Id: Ia85d8dc0e7bea35d9f9abfeae27a4610b3113e78
---
 rust/config/global.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rust/config/global.go b/rust/config/global.go
index b94d92fd9..4d31121e5 100644
--- a/rust/config/global.go
+++ b/rust/config/global.go
@@ -65,6 +65,7 @@ var (
 		"-lpthread",
 		"-lm",
 		"-lgcc_s",
+		"-Wl,--compress-debug-sections=zstd",
 	}
 
 	deviceGlobalRustFlags = []string{
@@ -86,6 +87,7 @@ var (
 		"-Wl,--use-android-relr-tags",
 		"-Wl,--no-undefined",
 		"-B${cc_config.ClangBin}",
+		"-Wl,--compress-debug-sections=zstd",
 	}
 )