diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index 90531ba32cb2..bd964fc6dc5c 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -3,16 +3,20 @@
 {
   autoPatchelfHook,
   callPackage,
+  cargo,
   config,
   fetchurl,
   jdk,
   jq,
   lib,
+  libcxxStdenv,
   llvmPackages,
-  llvmPackages_14,
+  llvmPackages_19,
+  makeRustPlatform,
   moreutils,
   protobuf,
   python3Packages,
+  rustc,
   stdenv,
   vscode-utils,
   zlib,
@@ -5119,7 +5123,17 @@ let
         };
       };
 
-      vadimcn.vscode-lldb = callPackage ./vadimcn.vscode-lldb { llvmPackages = llvmPackages_14; };
+      vadimcn.vscode-lldb = callPackage ./vadimcn.vscode-lldb {
+        llvmPackages = llvmPackages_19;
+        # The adapter is meant to be compiled with clang++,
+        # based on the provided CMake toolchain files.
+        # <https://github.com/vadimcn/codelldb/tree/master/cmake>
+        rustPlatform = makeRustPlatform {
+          stdenv = libcxxStdenv;
+          inherit cargo rustc;
+        };
+        stdenv = libcxxStdenv;
+      };
 
       valentjn.vscode-ltex = vscode-utils.buildVscodeMarketplaceExtension rec {
         mktplcRef = {
diff --git a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/adapter.nix b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/adapter.nix
index 884742352743..7ba5ee0e0aff 100644
--- a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/adapter.nix
+++ b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/adapter.nix
@@ -17,48 +17,47 @@ let
     if stdenv.hostPlatform.isDarwin then
       "/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Versions/A/Resources/debugserver"
     else
-      "${lldb.out}/bin/lldb-server";
+      "${lib.getBin lldb}/bin/lldb-server";
+  LLVM_TRIPLE = stdenv.hostPlatform.config;
 in
 rustPlatform.buildRustPackage {
   pname = "${pname}-adapter";
   inherit version src;
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-7tGX8wt2bb1segoWbBEBwZbznOaAiAyh9i/JC5FKUBU=";
+  cargoHash = "sha256-Nh4YesgWa1JR8tLfrIRps9TBdsAfilXu6G2/kB08co8=";
 
-  buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [ lldb ];
+  # Environment variables, based on <https://github.com/vadimcn/codelldb/blob/master/cargo_config.unix.toml>
+  # The LLDB_* variables are used in adapter/lldb/build.rs.
+  "CC_${LLVM_TRIPLE}" = "${stdenv.cc}/bin/cc";
+  "CXX_${LLVM_TRIPLE}" = "${stdenv.cc}/bin/c++";
+  LLDB_INCLUDE = "${lib.getDev lldb}/include";
+  LLDB_LINK_LIB = "lldb";
+  LLDB_LINK_SEARCH = "${lib.getLib lldb}/lib";
 
   nativeBuildInputs = [ makeWrapper ];
 
-  env = lib.optionalAttrs stdenv.hostPlatform.isDarwin { NIX_LDFLAGS = "-llldb -lc++abi"; };
-
   buildAndTestSubdir = "adapter";
 
-  buildFeatures = [ "weak-linkage" ];
+  # There's isn't much point in enabling the `weaklink` feature
+  # when we provide lldb via Nix.
+  # buildFeatures = [ "weaklink" ];
 
   cargoBuildFlags = [
-    "--lib"
     "--bin=codelldb"
   ];
 
   postFixup = ''
-    mkdir -p $out/share/{adapter,formatters}
-    # codelldb expects libcodelldb.so to be in the same
-    # directory as the executable, and can't find it in $out/lib.
-    # To make codelldb executable as a standalone,
-    # we put all files in $out/share, and then wrap the binary in $out/bin.
+    mkdir -p $out/share/{adapter,lang_support}
     mv $out/bin/* $out/share/adapter
-    cp $out/lib/* $out/share/adapter
     cp -r adapter/scripts $out/share/adapter
-    cp -t $out/share/formatters formatters/*.py
+    cp -t $out/share/lang_support lang_support/*.py
     ln -s ${lib.getLib lldb} $out/share/lldb
     makeWrapper $out/share/adapter/codelldb $out/bin/codelldb \
       --set-default LLDB_DEBUGSERVER_PATH "${lldbServer}"
   '';
 
-  patches = [ ./patches/adapter-output-shared_object.patch ];
-
-  # Tests are linked to liblldb but it is not available here.
+  # Tests fail to build (as of version 1.11.4).
   doCheck = false;
 
   passthru = { inherit lldbServer; };
diff --git a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/default.nix b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/default.nix
index 590c03c26115..5e4e6e24702a 100644
--- a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/default.nix
@@ -17,7 +17,7 @@ assert lib.versionAtLeast python3.version "3.5";
 let
   publisher = "vadimcn";
   pname = "vscode-lldb";
-  version = "1.10.0";
+  version = "1.11.4";
 
   vscodeExtUniqueId = "${publisher}.${pname}";
   vscodeExtPublisher = publisher;
@@ -25,13 +25,12 @@ let
 
   src = fetchFromGitHub {
     owner = "vadimcn";
-    repo = "vscode-lldb";
+    repo = "codelldb";
     rev = "v${version}";
-    hash = "sha256-ExSS5HxDmJJtYypRYJNz7nY0D50gjoDBc4CnJMfgVw8=";
+    hash = "sha256-+Pe7ij5ukF5pLgwvr+HOHjIv1TQDiPOEeJtkpIW9XWI=";
   };
 
-  # need to build a custom version of lldb and llvm for enhanced rust support
-  lldb = (import ./lldb.nix { inherit fetchFromGitHub llvmPackages; });
+  lldb = llvmPackages.lldb;
 
   adapter = (
     import ./adapter.nix {
@@ -86,10 +85,9 @@ stdenv.mkDerivation {
 
   patches = [ ./patches/cmake-build-extension-only.patch ];
 
-  postPatch = ''
-    # temporary patch for forgotten version updates
-    substituteInPlace CMakeLists.txt \
-      --replace-fail "1.9.2" ${version}
+  # Make devDependencies available to tools/prep-package.js
+  preConfigure = ''
+    cp -r ${nodeDeps}/lib/node_modules .
   '';
 
   postConfigure =
@@ -117,7 +115,7 @@ stdenv.mkDerivation {
 
     unzip ./codelldb-bootstrap.vsix 'extension/*' -d ./vsix-extracted
 
-    mkdir -p $ext/{adapter,formatters}
+    mkdir -p $ext/adapter
     mv -t $ext vsix-extracted/extension/*
     cp -t $ext/ -r ${adapter}/share/*
     wrapProgram $ext/adapter/codelldb \
diff --git a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/lldb.nix b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/lldb.nix
deleted file mode 100644
index 5a17141bf933..000000000000
--- a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/lldb.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-# Patched lldb for Rust language support.
-{
-  fetchFromGitHub,
-  llvmPackages,
-}:
-let
-  llvmSrc = fetchFromGitHub {
-    owner = "vadimcn";
-    repo = "llvm-project";
-    # codelldb/14.x branch
-    rev = "4c267c83cbb55fedf2e0b89644dc1db320fdfde7";
-    hash = "sha256-jM//ej6AxnRYj+8BAn4QrxHPT6HiDzK5RqHPSg3dCcw=";
-  };
-
-  lldbDrv = llvmPackages.lldb.overrideAttrs (oldAttrs: {
-    passthru = (oldAttrs.passthru or { }) // {
-      inherit llvmSrc;
-    };
-
-    doInstallCheck = true;
-
-    # installCheck for lldb_14 currently broken
-    # https://github.com/NixOS/nixpkgs/issues/166604#issuecomment-1086103692
-    # ignore the oldAttrs installCheck
-    installCheckPhase = ''
-      versionOutput="$($out/bin/lldb --version)"
-      echo "'lldb --version' returns: $versionOutput"
-      echo "$versionOutput" | grep -q 'rust-enabled'
-    '';
-  });
-in
-lldbDrv.override {
-  monorepoSrc = llvmSrc;
-  libllvm = llvmPackages.libllvm.override { monorepoSrc = llvmSrc; };
-}
diff --git a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/node_deps.nix b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/node_deps.nix
index 08dd9dc7e558..7e808175ee9c 100644
--- a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/node_deps.nix
+++ b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/node_deps.nix
@@ -13,7 +13,7 @@ buildNpmPackage {
   pname = "${pname}-node-deps";
   inherit version src;
 
-  npmDepsHash = "sha256-fMKGi+AJTMlWl7SQtZ21hUwOLgqlFYDhwLvEergQLfI=";
+  npmDepsHash = "sha256-Efeun7AFMAnoNXLbTGH7OWHaBHT2tO9CodfjKrIYw40=";
 
   nativeBuildInputs = [
     python3
diff --git a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/patches/adapter-output-shared_object.patch b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/patches/adapter-output-shared_object.patch
deleted file mode 100644
index aedbe59c3677..000000000000
--- a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/patches/adapter-output-shared_object.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-From 4f64ad191ec79b9f40843f88e3ac5910720636da Mon Sep 17 00:00:00 2001
-From: Changsheng Wu <Congee@users.noreply.github.com>
-Date: Fri, 9 Jun 2023 15:41:53 -0400
-Subject: [PATCH] Update Cargo.toml
-
----
- adapter/Cargo.toml | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/adapter/Cargo.toml b/adapter/Cargo.toml
-index bc86723..f5f26ce 100644
---- a/adapter/Cargo.toml
-+++ b/adapter/Cargo.toml
-@@ -39,7 +39,7 @@ winapi = { version = "0.3.8", features = ["std", "wincon", "namedpipeapi"] }
- winreg = "0.6.2"
-
- [lib]
--crate-type = ["staticlib"]
-+crate-type = ["dylib", "rlib"]
-
- [[bin]]
- name = "codelldb"
diff --git a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/patches/cmake-build-extension-only.patch b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/patches/cmake-build-extension-only.patch
index 4fc612642a0c..da71f77a45c6 100644
--- a/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/patches/cmake-build-extension-only.patch
+++ b/pkgs/applications/editors/vscode/extensions/vadimcn.vscode-lldb/patches/cmake-build-extension-only.patch
@@ -1,7 +1,8 @@
 diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 5cab8b1..0b500d5 100644
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
-@@ -16,13 +16,6 @@
+@@ -16,13 +16,6 @@ endif()
  set(VERSION "${VERSION}${VERSION_SUFFIX}")
  message("Version ${VERSION}")
  
@@ -15,24 +16,24 @@ diff --git a/CMakeLists.txt b/CMakeLists.txt
  if (CMAKE_SYSROOT)
      set(CMAKE_C_FLAGS "--sysroot=${CMAKE_SYSROOT} ${CMAKE_C_FLAGS}")
      set(CMAKE_CXX_FLAGS "--sysroot=${CMAKE_SYSROOT} ${CMAKE_CXX_FLAGS}")
-@@ -102,16 +95,6 @@
- configure_file(webpack.config.js ${CMAKE_CURRENT_BINARY_DIR}/webpack.config.js @ONLY)
+@@ -116,16 +109,6 @@ configure_file(package.json ${CMAKE_CURRENT_BINARY_DIR}/package.json @ONLY)
+ configure_file(webpack.config.js ${CMAKE_CURRENT_BINARY_DIR}/webpack.config.js)
  file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/package-lock.json DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
  
 -# Install node_modules
 -execute_process(
--    COMMAND ${NPM} ci # like install, but actually respects package-lock file.
+-    COMMAND ${NPM} --loglevel verbose ci # like install, but actually respects package-lock file.
 -    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
 -    RESULT_VARIABLE Result
 -)
 -if (NOT ${Result} EQUAL 0)
--    message(FATAL_ERROR "npm intall failed: ${Result}")
+-    message(FATAL_ERROR "npm install failed: ${Result}")
 -endif()
 -
  # Resolve $refs
  execute_process(
      COMMAND ${WithEnv} NODE_PATH=${CMAKE_CURRENT_BINARY_DIR}/node_modules node ${CMAKE_CURRENT_SOURCE_DIR}/tools/prep-package.js ${CMAKE_CURRENT_BINARY_DIR}/package.json ${CMAKE_CURRENT_BINARY_DIR}/package.json
-@@ -169,6 +152,7 @@
+@@ -183,6 +166,7 @@ add_custom_target(adapter_tests
  
  add_copy_file(PackageFiles ${CMAKE_CURRENT_SOURCE_DIR}/README.md ${CMAKE_CURRENT_BINARY_DIR}/README.md)
  add_copy_file(PackageFiles ${CMAKE_CURRENT_SOURCE_DIR}/CHANGELOG.md ${CMAKE_CURRENT_BINARY_DIR}/CHANGELOG.md)
@@ -40,7 +41,7 @@ diff --git a/CMakeLists.txt b/CMakeLists.txt
  add_copy_file(PackageFiles ${CMAKE_CURRENT_SOURCE_DIR}/images/lldb.png ${CMAKE_CURRENT_BINARY_DIR}/images/lldb.png)
  add_copy_file(PackageFiles ${CMAKE_CURRENT_SOURCE_DIR}/images/user.svg ${CMAKE_CURRENT_BINARY_DIR}/images/user.svg)
  add_copy_file(PackageFiles ${CMAKE_CURRENT_SOURCE_DIR}/images/users.svg ${CMAKE_CURRENT_BINARY_DIR}/images/users.svg)
-@@ -185,6 +169,7 @@
+@@ -199,6 +183,7 @@ add_custom_target(dev_debugging
  set(PackagedFilesBootstrap
      README.md
      CHANGELOG.md