{"id":280,"date":"2021-08-23T20:36:41","date_gmt":"2021-08-23T12:36:41","guid":{"rendered":"https:\/\/blogs.gongqilin.cn\/?p=280"},"modified":"2021-08-23T20:36:41","modified_gmt":"2021-08-23T12:36:41","slug":"%e5%85%b3%e4%ba%8ec%e5%85%a8%e5%b1%80%e5%af%b9%e8%b1%a1%e4%b8%8d%e8%b0%83%e7%94%a8%e6%9e%84%e9%80%a0%e5%87%bd%e6%95%b0%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/blogs.gongqilin.cn\/?p=280","title":{"rendered":"\u5173\u4e8eC++\u5168\u5c40\u5bf9\u8c61\u4e0d\u8c03\u7528\u6784\u9020\u51fd\u6570\u7684\u95ee\u9898"},"content":{"rendered":"

\u80cc\u666f<\/h1>\n

\u6211\u4eec\u77e5\u9053main\u51fd\u6570\u4e4b\u5916\u7684\u5168\u5c40\u53d8\u91cf\uff0c\u5982\u679c\u5728\u4e0d\u540c\u7684cpp\u6587\u4ef6\uff0c\u5176\u6784\u9020\u51fd\u6570\u7684\u6267\u884c\u987a\u5e8f\u662f\u4e0d\u53ef\u63a7\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u6307\u9488\u6307\u98de\u7b49\u5f02\u5e38\uff0c\u56e0\u6b64\uff0c\u6784\u9020\u51fd\u6570\u91cc\u53ea\u505a\u4e00\u4e9b\u7b80\u5355\u7684\u53d8\u91cf\u7684\u521d\u59cb\u5316\u3002\u800c\u5728STM32\u5e73\u53f0\u4f7f\u7528C++\u7f16\u7801\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u53d1\u73b0\u5168\u5c40\u5bf9\u8c61\u548c\u9759\u6001\u5bf9\u8c61\uff0c\u5728\u4f7f\u7528\u4e2d\u51fa\u73b0\u5f02\u5e38\uff0c\u6211\u80fd\u591f\u5728\u7a0b\u5e8f\u4e2d\u8c03\u7528\u8fd9\u4e2a\u5bf9\u8c61\u7684\u65b9\u6cd5\u3002\u4f46\u662f\u6267\u884c\u540e\u4e0e\u9884\u671f\u7ed3\u679c\u4e0d\u7b26\u3002<\/span><\/p>\n

 <\/p>\n

\u5206\u6790<\/h1>\n

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 .preinit_array     :\r\n  {\r\n    PROVIDE_HIDDEN (__preinit_array_start = .);\r\n    KEEP (*(.preinit_array*))\r\n    PROVIDE_HIDDEN (__preinit_array_end = .);\r\n  } >FLASH\r\n  .init_array :\r\n  {\r\n    PROVIDE_HIDDEN (__init_array_start = .);\r\n    KEEP (*(SORT(.init_array.*)))\r\n    KEEP (*(.init_array*))\r\n    PROVIDE_HIDDEN (__init_array_end = .);\r\n  } >FLASH\r\n<\/pre>\n
\u8be5\u6bb5\u7528\u4e8e\u4fdd\u5b58\u7a0b\u5e8f\u6216\u5171\u4eab\u5bf9\u8c61\u52a0\u8f7d\u65f6\u7684\u521d\u59cb\u5316\u51fd\u6570\u6307\u9488\uff0c\u8fd9\u4e0d\u5c31\u662f\u5168\u5c40\u5bf9\u8c61\u7684\u6784\u9020\u51fd\u6570\u561b\uff1f<\/span><\/p>\n
.preinit_array  0x08044fbc        0x0\r\n                0x08044fbc                PROVIDE (__preinit_array_start, .)\r\n *(.preinit_array*)\r\n                0x08044fbc                PROVIDE (__preinit_array_end, .)\r\n\r\n.init_array     0x08044fbc       0x1c\r\n                0x08044fbc                PROVIDE (__init_array_start, .)\r\n *(SORT(.init_array.*))\r\n *(.init_array*)\r\n .init_array    0x08044fbc        0x4 c:\/arm\/bin\/..\/lib\/gcc\/arm-none-eabi\/4.5.1\/thumb2\/crtbegin.o\r\n .init_array    0x08044fc0        0x4 OutPut\/bsp.o\r\n .init_array    0x08044fc4        0x4 OutPut\/CSoftPwm.o\r\n .init_array    0x08044fc8        0x4 OutPut\/CSysTime.o\r\n .init_array    0x08044fcc        0x4 OutPut\/CMainApp.o\r\n .init_array    0x08044fd0        0x4 OutPut\/CParser.o\r\n .init_array    0x08044fd4        0x4 c:\/arm\/bin\/..\/lib\/gcc\/arm-none-eabi\/4.5.1\/..\/..\/..\/..\/arm-none-eabi\/lib\/thumb2\\libstdc++.a(eh_alloc.o)\r\n                0x08044fd8                PROVIDE (__init_array_end, .)\r\n<\/pre>\n
\u518d\u6b21\u67e5\u770b\u751f\u6210\u7684map\u6587\u4ef6\u53d1\u73b0\u8be5\u6bb5\u4e0b\u90fd\u662f\u5305\u542b\u4e8e\u5168\u5c40\u5bf9\u8c61\u6216\u8005\u9759\u6001\u5bf9\u8c61\u7684\u6587\u4ef6\uff0c\u8fd9\u4e2a\u65f6\u5019\u6211\u4eec\u77e5\u9053\u8fd9\u4e9b\u5bf9\u8c61\u7684\u521d\u59cb\u5316\u6307\u9488\u90fd\u5b58\u653e\u5728\u8be5\u6bb5\u4e0b\uff0c\u95ee\u9898\u5c31\u662f\u5982\u4f55\u8bbf\u95ee\u8be5\u5730\u5740\u4e0b\u7684\u51fd\u6570\u6307\u9488\u4e86\u3002\u67e5\u627e\u8d44\u6599\u53d1\u73b0libc\u5e93\u4e0b\u7684_libc_init_array()<\/a> \u6539\u51fd\u6570\u5c31\u662f\u5bf9preinit_array\u6bb5\u548cinit_array\u6bb5\u7684<\/span>\u521d\u59cb\u5316\u51fd\u6570\u6307\u9488\u8fdb\u884c\u8c03\u7528\u6267\u884c\u3002<\/span><\/p>\n
 <\/p>\n
\u7ed3\u8bba<\/h1>\n
\u00a0\u7efc\u4e0a\uff0c\u89e3\u51b3C++\u5168\u5c40\u5bf9\u8c61\u4e0d\u8c03\u7528\u6784\u9020\u51fd\u6570\u7684\u95ee\u9898\uff0c\u53ea\u9700\u8981\u5728stm32\u7684\u542f\u52a8 \u6587\u4ef6\u4e2d\uff0c\u5728\u8c03\u7528main\uff08\uff09\u51fd\u6570\u524d\u8c03\u7528_libc_init_array(\uff09\u5373\u53ef<\/span><\/p>\n
\/* Call the clock system intitialization function.*\/\r\n  bl  SystemInit   \r\n\/* Call static constructors *\/\r\n    bl __libc_init_array\r\n\/* Call the application's entry point.*\/\r\n  bl  main\r\n  bx  lr   \r\n<\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
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