From 9509c1451006439ff4d927c708f7ab92a8e59da8 Mon Sep 17 00:00:00 2001
From: Darian Leung <darian@espressif.com>
Date: Fri, 14 Apr 2023 19:39:35 +0800
Subject: [PATCH] build: Add --longcalls option to clang builds of xtensa
 targets

This commit adds the --longcalls option to UNIQ_CMAKE_ASM_FLAGS for clang
builds of xtensa targets to prevent "dangerous relocation" errors.
---
 tools/cmake/toolchain-clang-esp32.cmake   | 2 +-
 tools/cmake/toolchain-clang-esp32s2.cmake | 2 +-
 tools/cmake/toolchain-clang-esp32s3.cmake | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/cmake/toolchain-clang-esp32.cmake b/tools/cmake/toolchain-clang-esp32.cmake
index 4de785a710..2c9e2e4a11 100644
--- a/tools/cmake/toolchain-clang-esp32.cmake
+++ b/tools/cmake/toolchain-clang-esp32.cmake
@@ -23,7 +23,7 @@ set(CMAKE_CXX_FLAGS "${UNIQ_CMAKE_CXX_FLAGS}"
     CACHE STRING "C++ Compiler Base Flags"
     FORCE)
 
-remove_duplicated_flags("--target=xtensa-esp-elf -mcpu=esp32 ${CMAKE_ASM_FLAGS}"
+remove_duplicated_flags("--target=xtensa-esp-elf -mcpu=esp32 -Xassembler --longcalls ${CMAKE_ASM_FLAGS}"
                         UNIQ_CMAKE_ASM_FLAGS)
 set(CMAKE_ASM_FLAGS "${UNIQ_CMAKE_ASM_FLAGS}"
     CACHE STRING "Assembler Base Flags"
diff --git a/tools/cmake/toolchain-clang-esp32s2.cmake b/tools/cmake/toolchain-clang-esp32s2.cmake
index 769a74f887..0dbda4aa8b 100644
--- a/tools/cmake/toolchain-clang-esp32s2.cmake
+++ b/tools/cmake/toolchain-clang-esp32s2.cmake
@@ -24,7 +24,7 @@ set(CMAKE_CXX_FLAGS "${UNIQ_CMAKE_CXX_FLAGS}"
     CACHE STRING "C++ Compiler Base Flags"
     FORCE)
 
-remove_duplicated_flags("--target=xtensa-esp-elf -mcpu=esp32s2 ${CMAKE_ASM_FLAGS}"
+remove_duplicated_flags("--target=xtensa-esp-elf -mcpu=esp32s2 -Xassembler --longcalls ${CMAKE_ASM_FLAGS}"
                         UNIQ_CMAKE_ASM_FLAGS)
 set(CMAKE_ASM_FLAGS "${UNIQ_CMAKE_ASM_FLAGS}"
     CACHE STRING "Assembler Base Flags"
diff --git a/tools/cmake/toolchain-clang-esp32s3.cmake b/tools/cmake/toolchain-clang-esp32s3.cmake
index 7ee52e78c1..a420bfc50c 100644
--- a/tools/cmake/toolchain-clang-esp32s3.cmake
+++ b/tools/cmake/toolchain-clang-esp32s3.cmake
@@ -23,7 +23,7 @@ set(CMAKE_CXX_FLAGS "${UNIQ_CMAKE_CXX_FLAGS}"
     CACHE STRING "C++ Compiler Base Flags"
     FORCE)
 
-remove_duplicated_flags("--target=xtensa-esp-elf -mcpu=esp32s3 ${CMAKE_ASM_FLAGS}"
+remove_duplicated_flags("--target=xtensa-esp-elf -mcpu=esp32s3 -Xassembler --longcalls ${CMAKE_ASM_FLAGS}"
                         UNIQ_CMAKE_ASM_FLAGS)
 set(CMAKE_ASM_FLAGS "${UNIQ_CMAKE_ASM_FLAGS}"
     CACHE STRING "Assembler Base Flags"