From 50c34f9a523a348ff7e40dcaf0cca9d53f94468f Mon Sep 17 00:00:00 2001
From: Eric Miotto <1094986+edymtt@users.noreply.github.com>
Date: Mon, 29 Apr 2024 12:42:36 -0700
Subject: [PATCH] =?UTF-8?q?[=F0=9F=8D=92/20240408]=20LLDB=20CMake:=20add?=
 =?UTF-8?q?=20option=20to=20link=20Swift=20content=20from=20Darwin=20toolc?=
 =?UTF-8?q?hain?=
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This is a companion to https://github.com/apple/swift/pull/73255, and
it's needed in some Apple internal configurations.

Addresses rdar://127113448

(cherry picked from commit ead278fb4d62a7282a15105fc8fbdb2c11a0cf08)
---
 lldb/cmake/modules/AddLLDB.cmake | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lldb/cmake/modules/AddLLDB.cmake b/lldb/cmake/modules/AddLLDB.cmake
index 5c835769bff96..0822397fce8bd 100644
--- a/lldb/cmake/modules/AddLLDB.cmake
+++ b/lldb/cmake/modules/AddLLDB.cmake
@@ -244,6 +244,11 @@ function(add_properties_for_swift_modules target reldir)
           APPEND PROPERTY BUILD_RPATH "@loader_path/${build_reldir}lib/swift/host")
         set_property(TARGET ${target}
           APPEND PROPERTY INSTALL_RPATH "@loader_path/${reldir}lib/swift/host")
+        if(SWIFT_ALLOW_LINKING_SWIFT_CONTENT_IN_DARWIN_TOOLCHAIN)
+          get_filename_component(TOOLCHAIN_BIN_DIR ${CMAKE_Swift_COMPILER} DIRECTORY)
+          get_filename_component(TOOLCHAIN_LIB_DIR "${TOOLCHAIN_BIN_DIR}/../lib/swift/macosx" ABSOLUTE)
+          target_link_directories(${target} BEFORE PUBLIC ${TOOLCHAIN_LIB_DIR})
+        endif()
       elseif (CMAKE_SYSTEM_NAME MATCHES "Linux|Android|OpenBSD|FreeBSD")
         set_property(TARGET ${target}
           APPEND PROPERTY BUILD_RPATH "$ORIGIN/${build_reldir}lib/swift/host")