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使用自带的工程模版时发现链接ld文件是把代码放在flash里，但是jlink debug配置startup里 “RAM application” 选项被勾选， 并且取消勾选“Initial Reset and Halt” 选项。
这个是为什么呢？
/*
* Copyright (c) 2019 Nuclei Limited. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* 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
*
* [url]www.apache.org/licenses/LICENSE-2.0[/url]
*
* 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.
*/
/******************************************************************************
* @file gcc_gd32vf103_flashxip.ld
* @brief GNU Linker Script for gd32vf103 based device
* @version V2.0.0
* @date 10. March 2022
******************************************************************************/
/*********** Use Configuration Wizard in Context Menu *************************/
OUTPUT_ARCH( "riscv" )
/********************* Flash Configuration ************************************
* Flash Configuration
* Flash Base Address <0x0-0xFFFFFFFF:8>
* Flash Size (in Bytes) <0x0-0xFFFFFFFF:8>
*
*/
__ROM_BASE = 0x08000000;
__ROM_SIZE = 0x00020000;
/*--------------------- Embedded RAM Configuration ---------------------------
* RAM Configuration
* RAM Base Address <0x0-0xFFFFFFFF:8>
* RAM Size (in Bytes) <0x0-0xFFFFFFFF:8>
*
*/
__RAM_BASE = 0x20000000;
__RAM_SIZE = 0x00008000;
/**************************** end of configuration section ********************/
ENTRY(_start)
/* Define base address and length of flash and ram */
MEMORY
{
flash (rxa!w) : ORIGIN = __ROM_BASE, LENGTH = __ROM_SIZE
ram (wxa!r) : ORIGIN = __RAM_BASE, LENGTH = __RAM_SIZE
}
REGION_ALIAS("ROM", flash)
REGION_ALIAS("RAM", ram)
SECTIONS
{
/* To provide symbol __STACK_SIZE, __HEAP_SIZE */
PROVIDE(__STACK_SIZE = 2K);
PROVIDE(__HEAP_SIZE = 2K);
__TOT_STACK_SIZE = __STACK_SIZE;
.init :
{
/* vector table locate at ROM */
*(.vtable)
KEEP (*(SORT_NONE(.init)))
. = ALIGN(4);
} >ROM AT>ROM
/* Code section located at ROM */
.text :
{
*(.text.unlikely .text.unlikely.*)
*(.text.startup .text.startup.*)
*(.text .text.*)
*(.gnu.linkonce.t.*)
/* readonly data placed in ROM */
. = ALIGN(8);
*(.srodata.cst16)
*(.srodata.cst8)
*(.srodata.cst4)
*(.srodata.cst2)
*(.srodata .srodata.*)
*(.rdata)
*(.rodata .rodata.*)
*(.gnu.linkonce.r.*)
/* below sections are used for rt-thread */
. = ALIGN(4);
__rt_init_start = .;
KEEP(*(SORT(.rti_fn*)))
__rt_init_end = .;
. = ALIGN(4);
__fsymtab_start = .;
KEEP(*(FSymTab))
__fsymtab_end = .;
. = ALIGN(4);
__vsymtab_start = .;
KEEP(*(VSymTab))
__vsymtab_end = .;
} >ROM AT>ROM
.fini :
{
KEEP (*(SORT_NONE(.fini)))
} >ROM AT>ROM
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >ROM AT>ROM
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
PROVIDE_HIDDEN (__init_array_end = .);
} >ROM AT>ROM
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
PROVIDE_HIDDEN (__fini_array_end = .);
} >ROM AT>ROM
.ctors :
{
/* gcc uses crtbegin.o to find the start of
* the constructors, so we make sure it is
* first. Because this is a wildcard, it
* doesn't matter if the user does not
* actually link against crtbegin.o; the
* linker won't look for a file to match a
* wildcard. The wildcard also means that it
* doesn't matter which directory crtbegin.o
* is in.
*/
KEEP (*crtbegin.o(.ctors))
KEEP (*crtbegin?.o(.ctors))
/* We don't want to include the .ctor section from
* the crtend.o file until after the sorted ctors.
* The .ctor section from the crtend file contains the
* end of ctors marker and it must be last
*/
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
} >ROM AT>ROM
.dtors :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*crtbegin?.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} >ROM AT>ROM
PROVIDE( _ilm_lma = LOADADDR(.text) );
PROVIDE( _ilm = ADDR(.text) );
PROVIDE( _eilm = . );
PROVIDE( _text_lma = LOADADDR(.text) );
PROVIDE( _text = ADDR(.text) );
PROVIDE (_etext = .);
PROVIDE (__etext = .);
PROVIDE (etext = .);
.data : ALIGN(8)
{
KEEP(*(.data.ctest*))
*(.data .data.*)
*(.gnu.linkonce.d.*)
. = ALIGN(8);
PROVIDE( __global_pointer$ = . + 0x800 );
*(.sdata .sdata.* .sdata*)
*(.gnu.linkonce.s.*)
. = ALIGN(8);
} >RAM AT>ROM
.tdata : ALIGN(8)
{
PROVIDE( __tls_base = . );
*(.tdata .tdata.* .gnu.linkonce.td.*)
} >RAM AT>ROM
PROVIDE( _data_lma = LOADADDR(.data) );
PROVIDE( _data = ADDR(.data) );
PROVIDE( _edata = . );
PROVIDE( edata = . );
PROVIDE( _fbss = . );
PROVIDE( __bss_start = . );
.tbss (NOLOAD) : ALIGN(8)
{
*(.tbss .tbss.* .gnu.linkonce.tb.*)
*(.tcommon)
PROVIDE( __tls_end = . );
} >RAM AT>RAM
.tbss_space (NOLOAD) : ALIGN(8)
{
. = . + SIZEOF(.tbss);
} >RAM AT>RAM
.bss (NOLOAD) : ALIGN(8)
{
*(.sbss*)
*(.gnu.linkonce.sb.*)
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(4);
} >RAM AT>RAM
PROVIDE( _end = . );
PROVIDE( end = . );
/* Nuclei C Runtime Library requirements:
* 1. heap need to be align at 16 bytes
* 2. __heap_start and __heap_end symbol need to be defined
* 3. reserved at least __HEAP_SIZE space for heap
*/
.heap (NOLOAD) : ALIGN(16)
{
. = ALIGN(16);
PROVIDE( __heap_start = . );
. += __HEAP_SIZE;
. = ALIGN(16);
PROVIDE( __heap_limit = . );
} >RAM AT>RAM
.stack ORIGIN(RAM) + LENGTH(RAM) - __TOT_STACK_SIZE (NOLOAD) :
{
. = ALIGN(16);
PROVIDE( _heap_end = . );
PROVIDE( __heap_end = . );
PROVIDE( __StackLimit = . );
PROVIDE( __StackBottom = . );
. += __TOT_STACK_SIZE;
. = ALIGN(16);
PROVIDE( __StackTop = . );
PROVIDE( _sp = . );
} >RAM AT>RAM
}
