/**************************************************************************** * boards/xtensa/esp32/common/scripts/esp32_mcuboot.ld * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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. * ****************************************************************************/ /* Default entry point: */ ENTRY(__start); SECTIONS { .metadata : { /* Magic for load header */ LONG(0xace637d3) /* Application entry point address */ KEEP(*(.entry_addr)) /* IRAM metadata: * - Destination address (VMA) for IRAM region * - Flash offset (LMA) for start of IRAM region * - Size of IRAM region */ LONG(ADDR(.iram0.vectors)) LONG(LOADADDR(.iram0.vectors)) LONG(LOADADDR(.iram0.text) + SIZEOF(.iram0.text) - LOADADDR(.iram0.vectors)) /* DRAM metadata: * - Destination address (VMA) for DRAM region * - Flash offset (LMA) for start of DRAM region * - Size of DRAM region */ LONG(ADDR(.dram0.data)) LONG(LOADADDR(.dram0.data)) LONG(SIZEOF(.dram0.data)) } >metadata _image_drom_vma = ADDR(.flash.rodata); _image_drom_lma = LOADADDR(.flash.rodata); _image_drom_size = LOADADDR(.flash.rodata) + SIZEOF(.flash.rodata) - _image_drom_lma; .flash.rodata : { . = ALIGN(4); _srodata = ABSOLUTE(.); *(EXCLUDE_FILE (*libarch.a:esp32_spiflash.* esp32_start.*) .rodata) *(EXCLUDE_FILE (*libarch.a:esp32_spiflash.* esp32_start.*) .rodata.*) *(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */ *(.gnu.linkonce.r.*) *(.rodata1) __XT_EXCEPTION_TABLE_ = ABSOLUTE(.); *(.xt_except_table) *(.gcc_except_table) *(.gcc_except_table.*) *(.gnu.linkonce.e.*) *(.gnu.version_r) *(.eh_frame) . = (. + 3) & ~ 3; /* C++ constructor and destructor tables, properly ordered: */ _sinit = ABSOLUTE(.); KEEP (*crtbegin.o(.ctors)) KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) KEEP (*(SORT(.ctors.*))) KEEP (*(.ctors)) _einit = ABSOLUTE(.); KEEP (*crtbegin.o(.dtors)) KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) KEEP (*(SORT(.dtors.*))) KEEP (*(.dtors)) /* C++ exception handlers table: */ __XT_EXCEPTION_DESCS_ = ABSOLUTE(.); *(.xt_except_desc) *(.gnu.linkonce.h.*) __XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.); *(.xt_except_desc_end) *(.dynamic) *(.gnu.version_d) . = ALIGN(4); /* This table MUST be 4-byte aligned */ _erodata = ABSOLUTE(.); /* Literals are also RO data. */ _lit4_start = ABSOLUTE(.); *(*.lit4) *(.lit4.*) *(.gnu.linkonce.lit4.*) _lit4_end = ABSOLUTE(.); . = ALIGN(4); } >drom0_0_seg AT>ROM /* Send .iram0 code to iram */ .iram0.vectors : { /* Vectors go to IRAM */ _init_start = ABSOLUTE(.); /* Vectors according to builds/RF-2015.2-win32/esp108_v1_2_s5_512int_2/config.html */ . = 0x0; KEEP (*(.window_vectors.text)); . = 0x180; KEEP (*(.xtensa_level2_vector.text)); . = 0x1c0; KEEP (*(.xtensa_level3_vector.text)); . = 0x200; KEEP (*(.xtensa_level4_vector.text)); . = 0x240; KEEP (*(.xtensa_level5_vector.text)); . = 0x280; KEEP (*(.debug_exception_vector.text)); . = 0x2c0; KEEP (*(.nmi_vector.text)); . = 0x300; KEEP (*(.kernel_exception_vector.text)); . = 0x340; KEEP (*(.user_exception_vector.text)); . = 0x3c0; KEEP (*(.double_exception_vector.text)); . = 0x400; *(.*_vector.literal) . = ALIGN (16); *(.entry.text) *(.init.literal) *(.init) _init_end = ABSOLUTE(.); } >iram0_0_seg AT>ROM .iram0.text : { /* Code marked as running out of IRAM */ _iram_text_start = ABSOLUTE(.); *(.iram1 .iram1.*) *libphy.a:(.literal .text .literal.* .text.*) *librtc.a:(.literal .text .literal.* .text.*) *libpp.a:(.literal .text .literal.* .text.*) *libhal.a:(.literal .text .literal.* .text.*) *libarch.a:esp32_spiflash.*(.literal .text .literal.* .text.*) esp32_start.*(.literal .text .literal.* .text.*) *(.wifirxiram .wifirxiram.*) *(.wifirxiram .wifi0iram.*) *(.wifislpiram .wifislpiram.*) *(.wifislprxiram .wifislprxiram.*) *(.phyiram .phyiram.*) _iram_text_end = ABSOLUTE(.); /* IRAM heap starts at the end of iram0_0_seg */ . = ALIGN (4); _siramheap = ABSOLUTE(.); } >iram0_0_seg AT>ROM /* Shared RAM */ .dram0.bss (NOLOAD) : { /* .bss initialized on power-up */ . = ALIGN (8); _sbss = ABSOLUTE(.); *(.dynsbss) *(.sbss) *(.sbss.*) *(.gnu.linkonce.sb.*) *(.scommon) *(.sbss2) *(.sbss2.*) *(.gnu.linkonce.sb2.*) *(.dynbss) KEEP (*(.bss)) *(.bss.*) *(.share.mem) *(.gnu.linkonce.b.*) *(COMMON) . = ALIGN(8); _ebss = ABSOLUTE(.); } >dram0_0_seg .noinit (NOLOAD): { /* This section contains data that is not initialized during load, * or during the application's initialization sequence. */ . = ALIGN(8); *(.noinit) *(".noinit.*") . = ALIGN(8); } >dram0_0_seg .dram0.data : { /* .data initialized on power-up in ROMed configurations. */ _sdata = ABSOLUTE(.); KEEP (*(.data)) KEEP (*(.data.*)) KEEP (*(.gnu.linkonce.d.*)) KEEP (*(.data1)) KEEP (*(.sdata)) KEEP (*(.sdata.*)) KEEP (*(.gnu.linkonce.s.*)) KEEP (*(.sdata2)) KEEP (*(.sdata2.*)) KEEP (*(.gnu.linkonce.s2.*)) KEEP (*(.jcr)) *(.dram1 .dram1.*) *libarch.a:esp32_spiflash.*(.rodata .rodata.*) esp32_start.*(.rodata .rodata.*) _edata = ABSOLUTE(.); . = ALIGN(4); /* Heap starts at the end of .data */ _sheap = ABSOLUTE(.); } >dram0_0_seg AT>ROM /* External memory bss, from any global variable with EXT_RAM_ATTR attribute */ .extmem.bss (NOLOAD) : { _sbss_extmem = ABSOLUTE(.); *(.extmem.bss .extmem.bss.*) . = ALIGN(4); _ebss_extmem = ABSOLUTE(.); } >extmem_seg _image_irom_vma = ADDR(.flash.text); _image_irom_lma = LOADADDR(.flash.text); _image_irom_size = LOADADDR(.flash.text) + SIZEOF(.flash.text) - _image_irom_lma; /* The alignment of the ".flash.text" output section is forced to * 0x0000FFFF (64KB) to ensure that it will be allocated at the beginning * of the next available Flash block. * This is required to meet the following constraint from the external * flash MMU: * VMA % 64KB == LMA % 64KB * i.e. the lower 16 bits of both the virtual address (address seen by the * CPU) and the load address (physical address of the external flash) must * be equal. */ .flash.text : ALIGN(0x0000FFFF) { _stext = .; _text_start = ABSOLUTE(.); *(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*) *(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */ *(.fini.literal) *(.fini) *(.gnu.version) . = ALIGN(4); _text_end = ABSOLUTE(.); _etext = .; } >irom0_0_seg AT>ROM .rtc.text : { . = ALIGN(4); *(.rtc.literal .rtc.text) } >rtc_iram_seg AT>ROM .rtc.data : { *(.rtc.data) *(.rtc.rodata) /* Whatever is left from the RTC memory is used as a special heap. */ . = ALIGN (4); _srtcheap = ABSOLUTE(.); } >rtc_slow_seg AT>ROM }