ESP8266 for Arduino IDE (xtensa-lx106-elf-gcc) 和 std::map 链接错误 [英] ESP8266 for Arduino IDE (xtensa-lx106-elf-gcc) and std::map linking error

问题描述

是否可以将地图与 ESP8266 一起用于 Arduino 包?

这是我的代码:

#include 

这是编译/链接错误:

Arduino: 1.6.5 (Windows 8.1), Board: "Generic ESP8266 Module, Serial, 80 MHz, 40MHz, DIO, 115200, 512K (64K SPIFFS)"Sketch_oct31a.cpp.o:在函数循环"中:C:\Program Files (x86)\Arduino/sketch_oct31a.ino:11: 未定义对 `std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)' 的引用Sketch_oct31a.cpp.o:在函数`_M_emplace_hint_unique, std::_Select1st中>, std::less<int>, std::allocator<std::pair<int const, int>>>::_M_erase(std::_Rb_tree_node<std::pair<int const, int> >*)':c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\bits/stl_tree.h:1130:对`std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'的未定义引用Sketch_oct31a.cpp.o:在函数`std::_Rb_tree_iterator中>::operator--()':c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\bits/stl_tree.h:204:对`std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'的未定义引用sketch_oct31a.cpp.o:(.text._ZNSt8_Rb_treeIiSt4pairIKiiESt10_Select1stIS2_ESt4lessIiESaIS2_EE29_M_get _insert_hint_unique_posESt23_Rb_tree_const_iteratorIS2_ERS1 _ [_ ZNSt8_Rb_treeIiSt4 pairIKiiESt10_Select1stIS2_ESt4lessIiESaIS2_EE29_M_get_insert_hint_unique_posESt 23_Rb_tree_const_iteratorIS2_ERS1 _] +为0x0):未定义参考`的std :: _ Rb_tree_increment(STD :: _ Rb_tree_node_base *)"Sketch_oct31a.cpp.o:在函数`std::_Rb_tree, std::_Select1st中>, std::less<int>, std::allocator<std::pair<int const, int>>>::_M_get_insert_hint_unique_pos(std::_Rb_tree_const_iterator<std::pair<int const, int> >, int const&)':c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\bits/stl_tree.h:1431:对`std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'的未定义引用c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\bits/stl_tree.h:1448:对`std::_Rb_tree_increment(std::_Rb_tree_node_base*)'的未定义引用collect2.exe:错误:ld 返回 1 个退出状态编译出错.

我从这里拿了那个包:https://github.com/esp8266/Arduino

顺便说一句，ESP8266 的任何其他东西都可以编译.

提前致谢

解决方案

标准 ESP8266 设置不链接 libstdc++，后者提供 map 和其他 std 命名空间代码.

您需要在 ESP8266 Arudino 文件夹的根目录中编辑 platforms.txt(该文件夹的位置取决于用于安装它的内容以及您使用的操作系统)-并将 -lstdc++ 添加到以下行:

compiler.c.elf.libs=-lm -lgcc -lhal -lphy -lnet80211 -llwip -lwpa -lmain -lpp -lsmartconfig -lwps -lcrypto -laxtls

Arduino IDE 仅在启动时读取此文件一次，因此，请确保在编译前重新启动 IDE.

Is it possible at all to use map with ESP8266 for Arduino package?

Here is my code:

#include <map>

typedef std::map<int, int> Items;

void setup() {
  Items items;
  items[2]=5;
  //items.emplace(4,5);
}

void loop() {

}

Here is compilation/linking erorrs:

Arduino: 1.6.5 (Windows 8.1), Board: "Generic ESP8266 Module, Serial, 80 MHz, 40MHz, DIO, 115200, 512K (64K SPIFFS)"

sketch_oct31a.cpp.o: In function `loop':
C:\Program Files (x86)\Arduino/sketch_oct31a.ino:11: undefined reference to     `std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*,     std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)'
sketch_oct31a.cpp.o: In function `_M_emplace_hint_unique<const     std::piecewise_construct_t&, std::tuple<int&&>, std::tuple<> >':
c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-    elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-    elf\include\c++\4.8.2\bits/stl_tree.h:1673: undefined reference to     `std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*,     std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)'
sketch_oct31a.cpp.o: In function `std::_Rb_tree<int, std::pair<int const,     int>, std::_Select1st<std::pair<int const, int> >, std::less<int>,     std::allocator<std::pair<int const, int> >     >::_M_erase(std::_Rb_tree_node<std::pair<int const, int> >*)':
c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-    elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-    elf\include\c++\4.8.2\bits/stl_tree.h:1130: undefined reference to     `std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'
sketch_oct31a.cpp.o: In function `std::_Rb_tree_iterator<std::pair<int     const, int> >::operator--()':
c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-    elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-    elf\include\c++\4.8.2\bits/stl_tree.h:204: undefined reference to     `std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'
sketch_oct31a.cpp.o:    (.text._ZNSt8_Rb_treeIiSt4pairIKiiESt10_Select1stIS2_ESt4lessIiESaIS2_EE29_M_get    _insert_hint_unique_posESt23_Rb_tree_const_iteratorIS2_ERS1_[_ZNSt8_Rb_treeIiSt4    pairIKiiESt10_Select1stIS2_ESt4lessIiESaIS2_EE29_M_get_insert_hint_unique_posESt    23_Rb_tree_const_iteratorIS2_ERS1_]+0x0): undefined reference to `std::_Rb_tree_increment(std::_Rb_tree_node_base*)'
sketch_oct31a.cpp.o: In function `std::_Rb_tree<int, std::pair<int const,     int>, std::_Select1st<std::pair<int const, int> >, std::less<int>,     std::allocator<std::pair<int const, int> >     >::_M_get_insert_hint_unique_pos(std::_Rb_tree_const_iterator<std::pair<int     const, int> >, int const&)':
c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-    elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\bits/stl_tree.h:1431: undefined reference to `std::_Rb_tree_decrement(std::_Rb_tree_node_base*)'
c:\users\user\appdata\roaming\arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\bits/stl_tree.h:1448: undefined reference to `std::_Rb_tree_increment(std::_Rb_tree_node_base*)'
collect2.exe: error: ld returned 1 exit status
Error compiling.

I took that package from here: https://github.com/esp8266/Arduino

BTW any other stuff for ESP8266 compiles OK.

Thanks in advance

解决方案

The standard ESP8266 setup does not link against libstdc++, which provides map and other std namespace code.

You'll need to edit platforms.txt in the root of the ESP8266 Arudino folder (The location of this folder depends on what was used to install it, and what OS you are using) - and add -lstdc++ to the following line:

compiler.c.elf.libs=-lm -lgcc -lhal -lphy -lnet80211 -llwip -lwpa -lmain -lpp -lsmartconfig -lwps -lcrypto -laxtls

Arduino IDE only reads this file once at start, so, make sure to restart the IDE before compiling.

这篇关于ESP8266 for Arduino IDE (xtensa-lx106-elf-gcc) 和 std::map 链接错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！