mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
97 lines
3.7 KiB
C
97 lines
3.7 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__
|
|
|
|
#include "sdkconfig.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 _SECTION_ATTR_IMPL(".iram1", __COUNTER__)
|
|
|
|
// Forces data into DRAM instead of flash
|
|
#define DRAM_ATTR _SECTION_ATTR_IMPL(".dram1", __COUNTER__)
|
|
|
|
// 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 _SECTION_ATTR_IMPL(".rtc.text", __COUNTER__)
|
|
|
|
#if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
|
|
// Forces bss variable into external memory. "
|
|
#define EXT_RAM_ATTR _SECTION_ATTR_IMPL(".ext_ram.bss", __COUNTER__)
|
|
#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 _SECTION_ATTR_IMPL(".rtc.data", __COUNTER__)
|
|
|
|
// Forces read-only data into RTC memory. See "docs/deep-sleep-stub.rst"
|
|
#define RTC_RODATA_ATTR _SECTION_ATTR_IMPL(".rtc.rodata", __COUNTER__)
|
|
|
|
// Allows to place data into RTC_SLOW memory.
|
|
#define RTC_SLOW_ATTR _SECTION_ATTR_IMPL(".rtc.force_slow", __COUNTER__)
|
|
|
|
// Allows to place data into RTC_FAST memory.
|
|
#define RTC_FAST_ATTR _SECTION_ATTR_IMPL(".rtc.force_fast", __COUNTER__)
|
|
|
|
// Forces data into noinit section to avoid initialization after restart.
|
|
#define __NOINIT_ATTR _SECTION_ATTR_IMPL(".noinit", __COUNTER__)
|
|
|
|
// 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 _SECTION_ATTR_IMPL(".rtc_noinit", __COUNTER__)
|
|
|
|
// Forces to not inline function
|
|
#define NOINLINE_ATTR __attribute__((noinline))
|
|
|
|
// Implementation for a unique custom section
|
|
//
|
|
// This prevents gcc producing "x causes a section type conflict with y"
|
|
// errors if two variables in the same source file have different linkage (maybe const & non-const) but are placed in the same custom section
|
|
//
|
|
// Using unique sections also means --gc-sections can remove unused
|
|
// data with a custom section type set
|
|
#define _SECTION_ATTR_IMPL(SECTION, COUNTER) __attribute__((section(SECTION "." _COUNTER_STRINGIFY(COUNTER))))
|
|
|
|
#define _COUNTER_STRINGIFY(COUNTER) #COUNTER
|
|
|
|
/* Use IDF_DEPRECATED attribute to mark anything deprecated from use in
|
|
ESP-IDF's own source code, but not deprecated for external users.
|
|
*/
|
|
#ifdef IDF_CI_BUILD
|
|
#define IDF_DEPRECATED(REASON) __attribute__((deprecated(REASON)))
|
|
#else
|
|
#define IDF_DEPRECATED(REASON)
|
|
#endif
|
|
|
|
#endif /* __ESP_ATTR_H__ */
|