From d007193eef478a2150cc52d30936081f093070fd Mon Sep 17 00:00:00 2001
From: wangmingrong1 <wangmingrong1@xiaomi.com>
Date: Thu, 24 Oct 2024 16:10:33 +0800
Subject: [PATCH] armv8m/clang.cmake: add armv8m clang config

Its makefile is implemented in arch/arm/src/armv8-m/Toolchain.defs as follows:
ifeq ($(CONFIG_ARM_TOOLCHAIN_CLANG),y)

  ifeq ($(CONFIG_ARCH_CORTEXM23),y)
    TOOLCHAIN_CLANG_CONFIG = armv8m.main_soft_nofp
  else ifeq ($(CONFIG_ARCH_CORTEXM33),y)
    ifeq ($(CONFIG_ARCH_FPU),y)
      TOOLCHAIN_CLANG_CONFIG = armv8m.main_hard_fp
    else
      TOOLCHAIN_CLANG_CONFIG = armv8m.main_soft_nofp
    endif
  else ifeq ($(CONFIG_ARCH_CORTEXM35P),y)
    ifeq ($(CONFIG_ARCH_FPU),y)
      TOOLCHAIN_CLANG_CONFIG = armv8m.main_hard_fp
    else
      TOOLCHAIN_CLANG_CONFIG = armv8m.main_soft_nofp
    endif
  else ifeq ($(CONFIG_ARCH_CORTEXM55),y)
    ifeq ($(CONFIG_ARCH_FPU),y)
      TOOLCHAIN_CLANG_CONFIG = armv8.1m.main_hard_fp
    else
      TOOLCHAIN_CLANG_CONFIG = armv8.1m.main_soft_nofp_nomve
    endif
  else ifeq ($(CONFIG_ARCH_CORTEXM85),y)
    ifeq ($(CONFIG_ARCH_FPU),y)
      TOOLCHAIN_CLANG_CONFIG = armv8.1m.main_hard_fp
    else
      TOOLCHAIN_CLANG_CONFIG = armv8.1m.main_soft_nofp_nomve
    endif
  endif

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
---
 arch/arm/src/cmake/armv8-m.cmake | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/src/cmake/armv8-m.cmake b/arch/arm/src/cmake/armv8-m.cmake
index 514006f5afac1..3c9d515965862 100644
--- a/arch/arm/src/cmake/armv8-m.cmake
+++ b/arch/arm/src/cmake/armv8-m.cmake
@@ -24,6 +24,36 @@ if(CONFIG_ARM_DSP)
   set(EXTCPUFLAGS +dsp)
 endif()
 
+if(CONFIG_ARM_TOOLCHAIN_CLANG)
+  if(CONFIG_ARCH_CORTEXM23)
+    set(TOOLCHAIN_CLANG_CONFIG armv8m.main_soft_nofp)
+  elseif(CONFIG_ARCH_CORTEXM33)
+    if(CONFIG_ARCH_FPU)
+      set(TOOLCHAIN_CLANG_CONFIG armv8m.main_hard_fp)
+    else()
+      set(TOOLCHAIN_CLANG_CONFIG armv8m.main_soft_nofp)
+    endif()
+  elseif(CONFIG_ARCH_CORTEXM35P)
+    if(CONFIG_ARCH_FPU)
+      set(TOOLCHAIN_CLANG_CONFIG armv8m.main_hard_fp)
+    else()
+      set(TOOLCHAIN_CLANG_CONFIG armv8m.main_soft_nofp)
+    endif()
+  elseif(CONFIG_ARCH_CORTEXM55)
+    if(CONFIG_ARCH_FPU)
+      set(TOOLCHAIN_CLANG_CONFIG armv8.1m.main_hard_fp)
+    else()
+      set(TOOLCHAIN_CLANG_CONFIG armv8.1m.main_soft_nofp_nomve)
+    endif()
+  elseif(CONFIG_ARCH_CORTEXM85)
+    if(CONFIG_ARCH_FPU)
+      set(TOOLCHAIN_CLANG_CONFIG armv8.1m.main_hard_fp)
+    else()
+      set(TOOLCHAIN_CLANG_CONFIG armv8.1m.main_soft_nofp_nomve)
+    endif()
+  endif()
+endif()
+
 if(CONFIG_ARCH_CORTEXM23)
   list(APPEND PLATFORM_FLAGS -mtune=cortex-m23 -march=armv8-m.main
        -mfloat-abi=soft)