使用 Infineon XMC4800 MCU 和 Segger 进行 GDB 调试中断而无断点
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【中文标题】使用 Infineon XMC4800 MCU 和 Segger 进行 GDB 调试中断而无断点【英文标题】：GDB debugging breaks without breakpoints with Infineon XMC4800 MCU and Segger 【发布时间】：2021-09-12 08:54:05 【问题描述】：我们有一个 EtherCAT 项目，为此我们使用英飞凌的 XMC4800 MCU。我首先在 Dave（他们的 IDE）中工作，但由于它不是基于 CMAKE，我遇到了添加可重用库的问题（我们为此使用 CPM）。
所以我决定尝试为 Dave 项目创建一个 CMakeLists.txt 文件，看看是否可以在 CLion 中打开/编译该项目。
几个小时后，我能够在 CLion 中构建项目。 （我只是打开 Dave 来更改硬件设置）
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_VERSION 1)
cmake_minimum_required(VERSION 3.17)
# specify cross compilers and tools
set(CMAKE_C_COMPILER arm-none-eabi-gcc)
set(CMAKE_CXX_COMPILER arm-none-eabi-g++)
set(CMAKE_ASM_COMPILER arm-none-eabi-gcc)
set(CMAKE_AR arm-none-eabi-ar)
set(CMAKE_OBJCOPY arm-none-eabi-objcopy)
set(CMAKE_OBJDUMP arm-none-eabi-objdump)
set(SIZE arm-none-eabi-size)
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
# project settings
project(L16_V2 C CXX ASM)
set(CMAKE_CXX_STANDARD 99)
set(CMAKE_C_STANDARD 99)
add_compile_definitions(XMC4800_F144x2048)
add_compile_options(-O0 -lm -ffunction-sections -fdata-sections -Wall
-std=gnu99 -mfloat-abi=softfp -Wa,-adhlns="$@.lst" -pipe -c
-fmessage-length=0 -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mthumb -g -gdwarf-2)
# uncomment to mitigate c++17 absolute addresses warnings
#set(CMAKE_CXX_FLAGS "$CMAKE_CXX_FLAGS -Wno-register")
if ("$CMAKE_BUILD_TYPE" STREQUAL "Release")
message(STATUS "Maximum optimization for speed")
add_compile_options(-Ofast)
elseif ("$CMAKE_BUILD_TYPE" STREQUAL "RelWithDebInfo")
message(STATUS "Maximum optimization for speed, debug info included")
add_compile_options(-Ofast -g)
elseif ("$CMAKE_BUILD_TYPE" STREQUAL "MinSizeRel")
message(STATUS "Maximum optimization for size")
add_compile_options(-Os)
else ()
message(STATUS "Minimal optimization, debug info included")
add_compile_options(-Og -g)
endif ()
include_directories(SSC/Src Dave/Generated/PWM
Dave/Generated/SYSTIMER Dave/Generated/INTERRUPT
Dave/Generated/PIN_INTERRUPT Dave/Generated/SPI_MASTER
Dave/Generated/ECAT_SSC Dave/Generated/GLOBAL_CCU4
Dave/Generated/GLOBAL_CCU8 Dave/Generated/EVENT_DETECTOR
Dave/Generated/EVENT_GENERATOR Dave/Generated/E_EEPROM_XMC4
Dave/Generated/GLOBAL_ADC Dave/Generated/ADC_MEASUREMENT
Dave/Generated/BUS_IO Dave/Generated/CLOCK_XMC4
Dave/Generated/CPU_CTRL_XMC4 Dave/Generated/DIGITAL_IO Startup
Dave/Generated Libraries/CMSIS/Include
Libraries/CMSIS/Infineon/XMC4800_series/Include
Libraries/XMCLib/inc SSC/Src)
add_definitions(-DXMC4800_F144x2048 -O0 -ffunction-sections -fdata-sections
-Wall -std=gnu99 -mfloat-abi=softfp -Wa,-adhlns="$@.lst"
-pipe -c -fmessage-length=0 -mcpu=cortex-m4
-mfpu=fpv4-sp-d16 -mthumb -g -gdwarf-2)
file(GLOB_RECURSE SOURCES RELATIVE $CMAKE_SOURCE_DIR
"Dave/Generated/*.c" "Startup/*.*" "Libraries/*.c"
"SSC/Src/*.c")
set(LINKER_SCRIPT $CMAKE_SOURCE_DIR/linker_script_IAP.ld)
add_link_options(-Wl,-gc-sections,--print-memory-usage,
-Map=$PROJECT_BINARY_DIR/$PROJECT_NAME.map)
add_link_options(-T $LINKER_SCRIPT)
add_link_options(-nostartfiles -Xlinker --gc-sections
-specs=nano.specs -specs=nosys.specs -mfloat-abi=softfp
-mfpu=fpv4-sp-d16 -mcpu=cortex-m4 -mthumb -g -gdwarf-2)
SET(CMAKE_C_FLAGS_DEBUG "-D_DEBUG")
add_executable($PROJECT_NAME.elf $SOURCES main.c lamp.c PID.c
firmwareupdate_SSC.c firmwareupdate_SSC.h
flashprog.c ad5328.c $LINKER_SCRIPT)
target_link_libraries($PROJECT_NAME.elf m)
set(HEX_FILE $PROJECT_BINARY_DIR/$PROJECT_NAME.hex)
set(BIN_FILE $PROJECT_BINARY_DIR/$PROJECT_NAME.bin)
add_custom_command(TARGET $PROJECT_NAME.elf POST_BUILD
COMMAND $CMAKE_OBJCOPY -Oihex $<TARGET_FILE:$PROJECT_NAME.elf> $HEX_FILE
COMMAND $CMAKE_OBJCOPY -Obinary $<TARGET_FILE:$PROJECT_NAME.elf> $BIN_FILE
COMMENT "Building $HEX_FILE
Building $BIN_FILE")
然后我结合 Segger J-link Plus (SWD) 设置“嵌入式 GDB 服务器”调试目标
这将上传已编译的应用程序，并且目标开始正常运行。 （我让它闪烁一个 LED）
问题是，当我启用断点时，它不会在我放置的断点上中断，而只是在完全其他位置中断。 （在我的例子中，在 int 处理程序的第一行）
当我在 Dave 中使用相同的设置进行调试时，它工作正常。
我尝试使用捆绑的 GDB 和 GNU GDB，没有区别
这可能与此项目使用引导加载程序（我从 Dave 构建并刷新的单独项目）有关
这是使用的链接器脚本：
/**
* @file XMC4800x2048.ld
* @date 2019-08-02
*
* @cond
*********************************************************************************************************************
* Linker file for the GNU C Compiler v1.2
* Supported devices: XMC4800-E196x2048
* XMC4800-F144x2048
* XMC4800-F100x2048
*
* Copyright (c) 2015-2019, Infineon Technologies AG
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
*
* Neither the name of the copyright holders nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY,OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* To improve the quality of the software, users are encouraged to share modifications, enhancements or bug fixes with
* Infineon Technologies AG dave@infineon.com).
*********************************************************************************************************************
*
* Change History
* --------------
*
* 2015-05-22:
* - Initial version
*
* 2015-07-13:
* - Updates from ARM template for C++ and fixes for GCC 4.9q2
*
* 2016-03-08:
* - Fix size of BSS and DATA sections to be multiple of 4
* - Add assertion to check that region SRAM_combined does not overflowed no_init section
*
* 2019-08-02
* - Fix size of flash reserved to application to 896KB
*
* @endcond
*
*/
OUTPUT_FORMAT("elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(Reset_Handler)
stack_size = DEFINED(stack_size) ? stack_size : 2048;
no_init_size = 64;
MEMORY
FLASH_0_cached(RX) : ORIGIN = 0x08000000, LENGTH = 0x00010000
FLASH_0_uncached(RX) : ORIGIN = 0x0C000000, LENGTH = 0x00010000
FLASH_1_cached(RX) : ORIGIN = 0x08020000, LENGTH = 0x000E0000
FLASH_1_uncached(RX) : ORIGIN = 0x0C020000, LENGTH = 0x000E0000
PSRAM_1(!RX) : ORIGIN = 0x1FFE8000, LENGTH = 0x18000
DSRAM_1_system(!RX) : ORIGIN = 0x20000000, LENGTH = 0x20000
DSRAM_2_comm(!RX) : ORIGIN = 0x20020000, LENGTH = 0x20000
SRAM_combined(!RX) : ORIGIN = 0x1FFE8000, LENGTH = 0x00058000
SECTIONS
/* TEXT section */
.text : ALIGN (4)
sText = .;
KEEP(*(.reset));
*(.text .text.* .gnu.linkonce.t.*);
/* C++ Support */
KEEP(*(.init))
KEEP(*(.fini))
/* .ctors */
*crtbegin.o(.ctors)
*crtbegin?.o(.ctors)
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
*(SORT(.ctors.*))
*(.ctors)
/* .dtors */
*crtbegin.o(.dtors)
*crtbegin?.o(.dtors)
*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
*(SORT(.dtors.*))
*(.dtors)
*(.rodata .rodata.*)
*(.gnu.linkonce.r*)
> FLASH_1_cached AT > FLASH_1_uncached
.eh_frame_hdr : ALIGN (4)
KEEP (*(.eh_frame_hdr))
> FLASH_1_cached AT > FLASH_1_uncached
.eh_frame : ALIGN (4)
KEEP (*(.eh_frame))
> FLASH_1_cached AT > FLASH_1_uncached
/* Exception handling, exidx needs a dedicated section */
.ARM.extab : ALIGN(4)
*(.ARM.extab* .gnu.linkonce.armextab.*)
> FLASH_1_cached AT > FLASH_1_uncached
. = ALIGN(4);
__exidx_start = .;
.ARM.exidx : ALIGN(4)
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
> FLASH_1_cached AT > FLASH_1_uncached
__exidx_end = .;
. = ALIGN(4);
/* DSRAM layout (Lowest to highest)*/
Stack (NOLOAD) :
__stack_start = .;
. = . + stack_size;
__stack_end = .;
__initial_sp = .;
> SRAM_combined
/* functions with __attribute__((section(".ram_code"))) */
.ram_code :
. = ALIGN(4); /* section size must be multiply of 4 */
__ram_code_start = .;
*(.ram_code)
. = ALIGN(4); /* section size must be multiply of 4 */
__ram_code_end = .;
> SRAM_combined AT > FLASH_1_uncached
__ram_code_load = LOADADDR (.ram_code);
__ram_code_size = __ram_code_end - __ram_code_start;
/* Standard DATA and user defined DATA/BSS/CONST sections */
.data :
. = ALIGN(4); /* section size must be multiply of 4 */
__data_start = .;
*(vtable)
* (.data);
* (.data*);
*(*.data);
*(.gnu.linkonce.d*)
. = ALIGN(4);
/* preinit data */
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP(*(.preinit_array))
PROVIDE_HIDDEN (__preinit_array_end = .);
. = ALIGN(4);
/* init data */
PROVIDE_HIDDEN (__init_array_start = .);
KEEP(*(SORT(.init_array.*)))
KEEP(*(.init_array))
PROVIDE_HIDDEN (__init_array_end = .);
. = ALIGN(4);
/* finit data */
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP(*(SORT(.fini_array.*)))
KEEP(*(.fini_array))
PROVIDE_HIDDEN (__fini_array_end = .);
. = ALIGN(4); /* section size must be multiply of 4 */
__data_end = .;
> SRAM_combined AT > FLASH_1_uncached
__data_load = LOADADDR (.data);
__data_size = __data_end - __data_start;
/* BSS section */
.bss (NOLOAD) :
. = ALIGN(4); /* section size must be multiply of 4 */
__bss_start = .;
* (.bss);
* (.bss*);
* (COMMON);
*(.gnu.linkonce.b*)
. = ALIGN(4); /* section size must be multiply of 4 */
__bss_end = .;
> SRAM_combined
__bss_size = __bss_end - __bss_start;
/* Shift location counter, so that ETH_RAM and USB_RAM are located above DSRAM_1_system */
__shift_loc = (__bss_end >= ORIGIN(DSRAM_1_system)) ? 0 : (ORIGIN(DSRAM_1_system) - __bss_end);
USB_RAM (__bss_end + __shift_loc) (NOLOAD) :
. = ALIGN(4); /* section size must be multiply of 4 */
USB_RAM_start = .;
*(USB_RAM)
. = ALIGN(4); /* section size must be multiply of 4 */
USB_RAM_end = .;
> SRAM_combined
USB_RAM_size = USB_RAM_end - USB_RAM_start;
ETH_RAM (USB_RAM_end) (NOLOAD) :
. = ALIGN(4); /* section size must be multiply of 4 */
ETH_RAM_start = .;
*(ETH_RAM)
. = ALIGN(4); /* section size must be multiply of 4 */
ETH_RAM_end = .;
. = ALIGN(8);
Heap_Bank1_Start = .;
> SRAM_combined
ETH_RAM_size = ETH_RAM_end - ETH_RAM_start;
/* .no_init section contains chipid, SystemCoreClock and trimming data. See system.c file*/
.no_init ORIGIN(SRAM_combined) + LENGTH(SRAM_combined) - no_init_size (NOLOAD) :
Heap_Bank1_End = .;
* (.no_init);
> SRAM_combined
/* Heap - Bank1*/
Heap_Bank1_Size = Heap_Bank1_End - Heap_Bank1_Start;
ASSERT(Heap_Bank1_Start <= Heap_Bank1_End, "region SRAM_combined overflowed no_init section")
/DISCARD/ :
*(.comment)
.stab 0 (NOLOAD) : *(.stab)
.stabstr 0 (NOLOAD) : *(.stabstr)
/* DWARF 1 */
.debug 0 : *(.debug)
.line 0 : *(.line)
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : *(.debug_srcinfo)
.debug_sfnames 0 : *(.debug_sfnames)
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : *(.debug_aranges)
.debug_pubnames 0 : *(.debug_pubnames)
.debug_pubtypes 0 : *(.debug_pubtypes)
/* DWARF 2 */
.debug_info 0 : *(.debug_info .gnu.linkonce.wi.*)
.debug_abbrev 0 : *(.debug_abbrev)
.debug_line 0 : *(.debug_line)
.debug_frame 0 : *(.debug_frame)
.debug_str 0 : *(.debug_str)
.debug_loc 0 : *(.debug_loc)
.debug_macinfo 0 : *(.debug_macinfo)
/* DWARF 2.1 */
.debug_ranges 0 : *(.debug_ranges)
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : *(.debug_weaknames)
.debug_funcnames 0 : *(.debug_funcnames)
.debug_typenames 0 : *(.debug_typenames)
.debug_varnames 0 : *(.debug_varnames)
/* Build attributes */
.build_attributes 0 : *(.ARM.attributes)
编辑：
我在 EtherCAT 示例的文档中找到了这个：
他们也提到了这一点：
里面 链接器文件的起始地址 应用程序被定义 这 DAVE 项目的默认链接器文件定义 向量表的位置和 将数据编程到闪存起始地址 0x0C000000 到 为 EEPROM 仿真预留空间 在您的项目中使用的 ECAT_SSC APP， 用每个覆盖此默认链接器文件 代码生成以重新映射程序数据 起始地址 0x0C000000 向量表 0x0C020000 程序数据 这 设置与闪存分区不匹配 用于此示例，因为向量表 与引导加载程序分区重叠 反而 ，需要以下设置 0x0C020000 向量表+程序数据
这可能与我的问题有关吗？
【问题讨论】：
你不认为你应该在你的 cmake 代码中添加换行符以使其可读吗？ 哦，对不起，我不知道这是允许的；你的意思是我可以将“add_compile_options(”行分成多行？ 是的，你可以add_compile_optoins(\n one option \n another option \n )。
【参考方案1】：
我能够让它工作。 在深入研究了 Dave 项目的设置后，我将 GDB 服务器的确切命令行参数从 Dave 复制到了 CLion 中，然后调试工作正常进行。
-if swd -device XMC4800-F144x2048 -endian little -speed auto -port 2331 -swoport 2332 -telnetport 2333 -vd -ir -localhostonly 1 -singlerun -strict -timeout 0
【讨论】：
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