From 8b8090735e02f6cf7e12db7ce48b2be73969f13a Mon Sep 17 00:00:00 2001
From: Meco Man <920369182@qq.com>
Date: Wed, 14 Jun 2023 00:03:38 -0400
Subject: [PATCH] [cpp] attach CXXFLAGS to reduce the resource consumptions

---
 components/libc/cplusplus/SConscript | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/components/libc/cplusplus/SConscript b/components/libc/cplusplus/SConscript
index a7829cea6d1a..63f326e2356d 100644
--- a/components/libc/cplusplus/SConscript
+++ b/components/libc/cplusplus/SConscript
@@ -1,12 +1,16 @@
 from building import *
 import os
-Import('rtconfig')
+import rtconfig
 
 cwd     = GetCurrentDir()
 src     = ['cxx_crt_init.c', 'cxx_crt.cpp']
 CPPPATH = [cwd]
+CXXFLAGS = ''
 
-group = DefineGroup('CPP', src, depend=['RT_USING_CPLUSPLUS'], CPPPATH=CPPPATH)
+if rtconfig.PLATFORM in ['gcc', 'armclang', 'llvm-arm']: # GCC or Keil AC6 or Clang/LLVM
+    CXXFLAGS += ' -fno-exceptions -fno-rtti -ffunction-sections -fdata-sections -Wl,--gc-sections' # reduce the resource consumptions
+
+group = DefineGroup('CPP', src, depend=['RT_USING_CPLUSPLUS'], CPPPATH=CPPPATH, CXXFLAGS=CXXFLAGS)
 
 list = os.listdir(cwd)
 for d in list: