71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
#ifndef __ESP_ATTR_H__
|
|
#define __ESP_ATTR_H__
|
|
|
|
#define ROMFN_ATTR
|
|
|
|
//Normally, the linker script will put all code and rodata in flash,
|
|
//and all variables in shared RAM. These macros can be used to redirect
|
|
//particular functions/variables to other memory regions.
|
|
|
|
// Forces code into IRAM instead of flash.
|
|
#define IRAM_ATTR __attribute__((section(".iram1")))
|
|
|
|
// Forces data into DRAM instead of flash
|
|
#define DRAM_ATTR __attribute__((section(".dram1")))
|
|
|
|
// Forces data to be 4 bytes aligned
|
|
#define WORD_ALIGNED_ATTR __attribute__((aligned(4)))
|
|
|
|
// Forces data to be placed to DMA-capable places
|
|
#define DMA_ATTR WORD_ALIGNED_ATTR DRAM_ATTR
|
|
|
|
// Forces a string into DRAM instead of flash
|
|
// Use as ets_printf(DRAM_STR("Hello world!\n"));
|
|
#define DRAM_STR(str) (__extension__({static const DRAM_ATTR char __c[] = (str); (const char *)&__c;}))
|
|
|
|
// Forces code into RTC fast memory. See "docs/deep-sleep-stub.rst"
|
|
#define RTC_IRAM_ATTR __attribute__((section(".rtc.text")))
|
|
|
|
#if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
|
|
// Forces bss variable into external memory. "
|
|
#define EXT_RAM_ATTR __attribute__((section(".ext_ram.bss")))
|
|
#else
|
|
#define EXT_RAM_ATTR
|
|
#endif
|
|
|
|
// Forces data into RTC slow memory. See "docs/deep-sleep-stub.rst"
|
|
// Any variable marked with this attribute will keep its value
|
|
// during a deep sleep / wake cycle.
|
|
#define RTC_DATA_ATTR __attribute__((section(".rtc.data")))
|
|
|
|
// Forces read-only data into RTC memory. See "docs/deep-sleep-stub.rst"
|
|
#define RTC_RODATA_ATTR __attribute__((section(".rtc.rodata")))
|
|
|
|
// Allows to place data into RTC_SLOW memory.
|
|
#define RTC_SLOW_ATTR __attribute__((section(".rtc.force_slow")))
|
|
|
|
// Allows to place data into RTC_FAST memory.
|
|
#define RTC_FAST_ATTR __attribute__((section(".rtc.force_fast")))
|
|
|
|
// Forces data into noinit section to avoid initialization after restart.
|
|
#define __NOINIT_ATTR __attribute__((section(".noinit")))
|
|
|
|
// Forces data into RTC slow memory of .noinit section.
|
|
// Any variable marked with this attribute will keep its value
|
|
// after restart or during a deep sleep / wake cycle.
|
|
#define RTC_NOINIT_ATTR __attribute__((section(".rtc_noinit")))
|
|
|
|
#endif /* __ESP_ATTR_H__ */
|