diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6025808eb615d..7c1aaef7026f9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,6 +50,9 @@ jobs:
             env:
               CI_ONLY_WHEN_SUBMODULES_CHANGED: 1
             os: ubuntu-latest-xl
+          - name: dist-x86_64-freebsd
+            os: ubuntu-latest-xl
+            env: {}
     timeout-minutes: 600
     runs-on: "${{ matrix.os }}"
     steps:
@@ -635,7 +638,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - name: dist-x86_64-linux
+          - name: dist-x86_64-freebsd
             os: ubuntu-latest-xl
             env: {}
     timeout-minutes: 600
diff --git a/.gitmodules b/.gitmodules
index 984113151de4d..a5a852b5bee69 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -46,4 +46,5 @@
 	url = https://github.com/rust-analyzer/rust-analyzer.git
 [submodule "library/backtrace"]
 	path = library/backtrace
-	url = https://github.com/rust-lang/backtrace-rs.git
+	url = https://github.com/lzutao/backtrace-rs.git
+	branch = bsd
diff --git a/Cargo.lock b/Cargo.lock
index 98e7e34faf76f..180bced19264d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1707,9 +1707,8 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.79"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2448f6066e80e3bfc792e9c98bf705b4b0fc6e8ef5b43e5889aff0eaa9c58743"
+version = "0.2.80"
+source = "git+https://github.com/lzutao/rust-libc?branch=i78184#624f53143a942e45b1f50d9690191e2543db8ef8"
 dependencies = [
  "rustc-std-workspace-core",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 02794d1028b50..7b14ff3c9090d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -77,6 +77,10 @@ object.debug = 0
 [patch."https://github.com/rust-lang/cargo"]
 cargo = { path = "src/tools/cargo" }
 
+[patch.crates-io.libc]
+git = "https://github.com/lzutao/rust-libc"
+branch = "i78184"
+
 [patch."https://github.com/rust-lang/rustfmt"]
 # Similar to Cargo above we want the RLS to use a vendored version of `rustfmt`
 # that we're shipping as well (to ensure that the rustfmt in RLS and the
diff --git a/library/backtrace b/library/backtrace
index 8b8ea53b56f51..2f5d1b012f072 160000
--- a/library/backtrace
+++ b/library/backtrace
@@ -1 +1 @@
-Subproject commit 8b8ea53b56f519dd7780defdd4254daaec892584
+Subproject commit 2f5d1b012f07251b7838df49ae03308ede7cbb41
diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml
index 01f15a82f0f5a..36b65ca53de89 100644
--- a/src/ci/github-actions/ci.yml
+++ b/src/ci/github-actions/ci.yml
@@ -288,6 +288,8 @@ jobs:
               CI_ONLY_WHEN_SUBMODULES_CHANGED: 1
             <<: *job-linux-xl
 
+          - name: dist-x86_64-freebsd
+            <<: *job-linux-xl
   auto:
     <<: *base-ci-job
     name: auto
@@ -679,7 +681,8 @@ jobs:
     strategy:
       matrix:
         include:
-          - *dist-x86_64-linux
+          - name: dist-x86_64-freebsd
+            <<: *job-linux-xl
 
   master:
     name: master
diff --git a/src/tools/tidy/src/extdeps.rs b/src/tools/tidy/src/extdeps.rs
index 1cf0d24e26ff5..507bba4d691ad 100644
--- a/src/tools/tidy/src/extdeps.rs
+++ b/src/tools/tidy/src/extdeps.rs
@@ -4,7 +4,10 @@ use std::fs;
 use std::path::Path;
 
 /// List of allowed sources for packages.
-const ALLOWED_SOURCES: &[&str] = &["\"registry+https://github.com/rust-lang/crates.io-index\""];
+const ALLOWED_SOURCES: &[&str] = &[
+    "\"registry+https://github.com/rust-lang/crates.io-index\"",
+    "\"git+https://github.com/lzutao/rust-libc",
+];
 
 /// Checks for external package sources. `root` is the path to the directory that contains the
 /// workspace `Cargo.toml`.
@@ -26,7 +29,14 @@ pub fn check(root: &Path, bad: &mut bool) {
         let source = line.splitn(2, '=').nth(1).unwrap().trim();
 
         // Ensure source is allowed.
-        if !ALLOWED_SOURCES.contains(&&*source) {
+        let mut matched = false;
+        for allowed in ALLOWED_SOURCES {
+            if source.starts_with(allowed) {
+                matched = true;
+                break;
+            }
+        }
+        if !matched {
             println!("invalid source: {}", source);
             *bad = true;
         }