C++ 在为Arduino UNO编译时，Arduino IDE使用什么linkerscript？ 1.我想要达到的目标
我的最终目标是将Arduino项目（草图）转换为基于makefile的自包含C/C++项目 我已经取得了一些进展（感谢@Juraj提供的有用评论）。我将所有相关的ArduinoC++ 在为Arduino UNO编译时，Arduino IDE使用什么linkerscript？ 1.我想要达到的目标,c++,c,gcc,arduino,avr,C++,C,Gcc,Arduino,Avr,我的最终目标是将Arduino项目（草图）转换为基于makefile的自包含C/C++项目 我已经取得了一些进展（感谢@Juraj提供的有用评论）。我将所有相关的Arduino*.cpp和*.h文件复制到一个文件夹（我称之为“项目文件夹”）以及预处理的草图文件（Arduino预处理器将草图文件转换为*.cpp文件） 我添加了一个内部makefile，构建效果非常好。然而，在最后一步——链接——中，究竟使用了什么linkerscript对我来说仍然是个谜 2.问题被解释了 尽管构建（包括链接步骤）
*.cpp*.h*.cppavr gcc<arduino ide installation>/hardware/tools/avr/avr/lib/ldscripts
~/Arduino/sketch\u uno\u blinky/sketch\u uno\u blinky.inoFile > Preferences > Show verbose output
*.cpp*.havr gcc-Wl，-Map=output.Map
-Wl，--gc部分
-mmcu=atmega328p
-DF_CPU=1600000L
-DARDUINO=10813
-DARDUINO_AVR_UNO
-DARDUINO_ARCH_AVR
-奥格
-g3
-毫米波
-fmessage length=0
-F功能部分
-fdata节
-Wno评论
-Wno未使用函数
-Werror隐式函数声明
-w
-lm
-flto
-熔丝链接器插件
-L../config/
-o application.elf
冬虫
梅因
钩子
接线
模拟电路
数字线路
接线脉冲
接线(u shift.o)
[...]
素描_uno_blinky.ino.o
这将导致
application.elf在avr gcc surce代码中，有一个描述avr MCU的命令。文件中的第二列是“架构”，您可以在ldscripts中找到相应的链接器脚本。例如，atmega328p有ARCH_AVR5，链接器脚本是AVR5.x谢谢@Juraj的回答和所有有用的评论 我找到了另一种方法来查看正在使用的linkerscript。只需将此标志添加到链接器调用：
-Wl，--verboseGNU ld (GNU Binutils) 2.26.20160125
Supported emulations:
avr2
avr1
avr25
avr3
avr31
avr35
avr4
avr5
avr51
avr6
avrxmega1
avrxmega2
avrxmega3
avrxmega4
avrxmega5
avrxmega6
avrxmega7
avrtiny
opened script file /home/kristof/gnu_avr_toolchain/avr/bin/../lib/ldscripts/avr5.xn
using external linker script:
==================================================
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Copying and distribution of this script, with or without modification,
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MEMORY
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==================================================
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(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_muluhisi3.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_mulshisi3.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_prologue.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_epilogue.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_udivmodsi4.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_umulhisi3.o
attempt to open /tmp/ccAFolcs.ltrans0.ltrans.o succeeded
/tmp/ccAFolcs.ltrans0.ltrans.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_ctors.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_tablejump2.o
打开的脚本文件/home/kristof/gnu_avr_toolchain/avr/bin/./lib/ldscripts/avr5.xn
它甚至可以打印文件的全部内容。mcu选项决定链接器脚本。它从这些
包/arduino/tools/avr gcc/7.3.0-atmel3.6.1-arduino5/avr/lib/ldscriptsGNU ld (GNU Binutils) 2.26.20160125
Supported emulations:
avr2
avr1
avr25
avr3
avr31
avr35
avr4
avr5
avr51
avr6
avrxmega1
avrxmega2
avrxmega3
avrxmega4
avrxmega5
avrxmega6
avrxmega7
avrtiny
opened script file /home/kristof/gnu_avr_toolchain/avr/bin/../lib/ldscripts/avr5.xn
using external linker script:
==================================================
/* Script for -n: mix text and data on same page */
/* Copyright (C) 2014-2015 Free Software Foundation, Inc.
Copying and distribution of this script, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. */
OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr")
OUTPUT_ARCH(avr:5)
__TEXT_REGION_LENGTH__ = DEFINED(__TEXT_REGION_LENGTH__) ? __TEXT_REGION_LENGTH__ : 128K;
__DATA_REGION_LENGTH__ = DEFINED(__DATA_REGION_LENGTH__) ? __DATA_REGION_LENGTH__ : 0xffa0;
__EEPROM_REGION_LENGTH__ = DEFINED(__EEPROM_REGION_LENGTH__) ? __EEPROM_REGION_LENGTH__ : 64K;
__FUSE_REGION_LENGTH__ = DEFINED(__FUSE_REGION_LENGTH__) ? __FUSE_REGION_LENGTH__ : 1K;
__LOCK_REGION_LENGTH__ = DEFINED(__LOCK_REGION_LENGTH__) ? __LOCK_REGION_LENGTH__ : 1K;
__SIGNATURE_REGION_LENGTH__ = DEFINED(__SIGNATURE_REGION_LENGTH__) ? __SIGNATURE_REGION_LENGTH__ : 1K;
__USER_SIGNATURE_REGION_LENGTH__ = DEFINED(__USER_SIGNATURE_REGION_LENGTH__) ? __USER_SIGNATURE_REGION_LENGTH__ : 1K;
__DATA_REGION_ORIGIN__ = DEFINED(__DATA_REGION_ORIGIN__) ? __DATA_REGION_ORIGIN__ : 0x800060;
MEMORY
{
text (rx) : ORIGIN = 0, LENGTH = __TEXT_REGION_LENGTH__
data (rw!x) : ORIGIN = __DATA_REGION_ORIGIN__, LENGTH = __DATA_REGION_LENGTH__
eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__
fuse (rw!x) : ORIGIN = 0x820000, LENGTH = __FUSE_REGION_LENGTH__
lock (rw!x) : ORIGIN = 0x830000, LENGTH = __LOCK_REGION_LENGTH__
signature (rw!x) : ORIGIN = 0x840000, LENGTH = __SIGNATURE_REGION_LENGTH__
user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__
}
SECTIONS
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.rela.plt : { *(.rela.plt) }
/* Internal text space or external memory. */
.text :
{
*(.vectors)
KEEP(*(.vectors))
/* For data that needs to reside in the lower 64k of progmem. */
*(.progmem.gcc*)
/* PR 13812: Placing the trampolines here gives a better chance
that they will be in range of the code that uses them. */
. = ALIGN(2);
__trampolines_start = . ;
/* The jump trampolines for the 16-bit limited relocs will reside here. */
*(.trampolines)
*(.trampolines*)
__trampolines_end = . ;
/* avr-libc expects these data to reside in lower 64K. */
*libprintf_flt.a:*(.progmem.data)
*libc.a:*(.progmem.data)
*(.progmem*)
. = ALIGN(2);
/* For future tablejump instruction arrays for 3 byte pc devices.
We don't relax jump/call instructions within these sections. */
*(.jumptables)
*(.jumptables*)
/* For code that needs to reside in the lower 128k progmem. */
*(.lowtext)
*(.lowtext*)
__ctors_start = . ;
*(.ctors)
__ctors_end = . ;
__dtors_start = . ;
*(.dtors)
__dtors_end = . ;
KEEP(SORT(*)(.ctors))
KEEP(SORT(*)(.dtors))
/* From this point on, we don't bother about wether the insns are
below or above the 16 bits boundary. */
*(.init0) /* Start here after reset. */
KEEP (*(.init0))
*(.init1)
KEEP (*(.init1))
*(.init2) /* Clear __zero_reg__, set up stack pointer. */
KEEP (*(.init2))
*(.init3)
KEEP (*(.init3))
*(.init4) /* Initialize data and BSS. */
KEEP (*(.init4))
*(.init5)
KEEP (*(.init5))
*(.init6) /* C++ constructors. */
KEEP (*(.init6))
*(.init7)
KEEP (*(.init7))
*(.init8)
KEEP (*(.init8))
*(.init9) /* Call main(). */
KEEP (*(.init9))
*(.text)
. = ALIGN(2);
*(.text.*)
. = ALIGN(2);
*(.fini9) /* _exit() starts here. */
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*(.fini8)
KEEP (*(.fini8))
*(.fini7)
KEEP (*(.fini7))
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KEEP (*(.fini3))
*(.fini2)
KEEP (*(.fini2))
*(.fini1)
KEEP (*(.fini1))
*(.fini0) /* Infinite loop after program termination. */
KEEP (*(.fini0))
_etext = . ;
} > text
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__data_load_end = __data_load_start + SIZEOF(.data);
/* Global data not cleared after reset. */
.noinit ADDR(.bss) + SIZEOF (.bss) : AT (ADDR (.noinit))
{
PROVIDE (__noinit_start = .) ;
*(.noinit*)
PROVIDE (__noinit_end = .) ;
_end = . ;
PROVIDE (__heap_start = .) ;
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}
==================================================
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/crtatmega328p.o succeeded
/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/crtatmega328p.o
attempt to open ../config//libm.so failed
attempt to open ../config//libm.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libm.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libm.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libm.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libm.a succeeded
attempt to open WInterrupts.o succeeded
WInterrupts.o
attempt to open hooks.o succeeded
hooks.o
attempt to open wiring.o succeeded
wiring.o
attempt to open wiring_analog.o succeeded
wiring_analog.o
attempt to open wiring_digital.o succeeded
wiring_digital.o
attempt to open wiring_pulse.o succeeded
wiring_pulse.o
attempt to open wiring_shift.o succeeded
wiring_shift.o
attempt to open CDC.o succeeded
CDC.o
attempt to open HardwareSerial.o succeeded
HardwareSerial.o
attempt to open HardwareSerial0.o succeeded
HardwareSerial0.o
attempt to open HardwareSerial1.o succeeded
HardwareSerial1.o
attempt to open HardwareSerial2.o succeeded
HardwareSerial2.o
attempt to open HardwareSerial3.o succeeded
HardwareSerial3.o
attempt to open IPAddress.o succeeded
IPAddress.o
attempt to open PluggableUSB.o succeeded
PluggableUSB.o
attempt to open Print.o succeeded
Print.o
attempt to open Stream.o succeeded
Stream.o
attempt to open Tone.o succeeded
Tone.o
attempt to open USBCore.o succeeded
USBCore.o
attempt to open WMath.o succeeded
WMath.o
attempt to open WString.o succeeded
WString.o
attempt to open abi.o succeeded
abi.o
attempt to open main.o succeeded
main.o
attempt to open new.o succeeded
new.o
attempt to open sketch_uno_blinky.ino.o succeeded
sketch_uno_blinky.ino.o
attempt to open ../config//libgcc.so failed
attempt to open ../config//libgcc.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a succeeded
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_exit.o
attempt to open ../config//libm.so failed
attempt to open ../config//libm.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libm.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libm.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libm.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libm.a succeeded
attempt to open ../config//libc.so failed
attempt to open ../config//libc.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libc.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libc.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a succeeded
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)dtostrf.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)random.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)atof.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)atol.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)strcpy_P.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)strlen_P.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)itoa.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)itoa_ncheck.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)ltoa.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)ltoa_ncheck.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)mulsi10.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)ultoa.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)ultoa_ncheck.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)utoa.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)utoa_ncheck.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)dtoa_prf.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)strtod.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)ftoa_engine.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)isspace.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)strncasecmp_P.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)strrev.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)cmpsf2.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)floatsisf.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_cmp.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)mulsf3.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)mulsf3x.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)errno.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)cty_isfalse.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_inf.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_nan.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_pscA.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_pscB.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_round.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_split3.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libc.a)fp_zero.o
attempt to open ../config//libatmega328p.so failed
attempt to open ../config//libatmega328p.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libatmega328p.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libatmega328p.a failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libatmega328p.so failed
attempt to open /home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/libatmega328p.a succeeded
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_divmodsi4.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_negsi2.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_copy_data.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_clear_bss.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_muluhisi3.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_mulshisi3.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_prologue.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_epilogue.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_udivmodsi4.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_umulhisi3.o
attempt to open /tmp/ccAFolcs.ltrans0.ltrans.o succeeded
/tmp/ccAFolcs.ltrans0.ltrans.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_ctors.o
(/home/kristof/gnu_avr_toolchain/bin/../lib/gcc/avr/7.3.0/avr5/libgcc.a)_tablejump2.o