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39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
/*
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* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "sdkconfig.h"
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#include "esp_log.h"
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#include "esp_private/startup_internal.h"
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namespace {
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const char *TAG = "C++ init";
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}
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/**
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* This function overwrites the same function of libsupc++ (part of libstdc++).
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* Consequently, libsupc++ will then follow our configured exception emergency pool size.
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*
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* It will be called even with -fno-exception for user code since the stdlib still uses exceptions.
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*/
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extern "C" size_t __cxx_eh_arena_size_get(void)
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{
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#ifdef CONFIG_COMPILER_CXX_EXCEPTIONS
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ESP_EARLY_LOGD(TAG, "Setting C++ exception emergency pool to %u.", CONFIG_COMPILER_CXX_EXCEPTIONS_EMG_POOL_SIZE);
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return CONFIG_COMPILER_CXX_EXCEPTIONS_EMG_POOL_SIZE;
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#else
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ESP_EARLY_LOGD(TAG, "Setting C++ exception emergency pool to 0.");
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return 0;
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#endif
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}
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/**
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* Dummy function used to force linking this file.
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* This works via -u __cxx_init_dummy flag in CMakeLists.txt
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*/
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extern "C" void __cxx_init_dummy(void)
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{
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}
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