Q1. 编译完成后,ELF解析的bss数值3372,并不等于bss_end - bss_start,而是等于bss_end - sstack。 Step 1. 在RT-ThreadStudio中创建一个基于4.0.5和STM32L431RCTx的工程。 编译完成后,得到的输出结果是 arm-none-eabi-size --format=berkeley "rtthread.elf" text data bss dec hex filename 53632 1816...
清除bss 段 上面代码中的_bss_start,是: .globl _bss_start_bss_start:.word __bss_start而_bss_end,是:.globl _bss_end_bss_end:.word _end对应的,__bss_start和_end,都在前面提到过的那个链接脚本里面:u-boot-1.1.6_20100601\opt\EmbedSky\u-boot-1.1.6\board\EmbedSky\u-boot.lds中的:__bss...
这里，实际上句（1）是在bss段的起始地址处定义了一个int类型的全局变量__bss_start。虽然，bss段的...
__bss_start 在 u-boot.lds 定义 至于uboot.lds 和__bss_start怎么定义就要了解 链接脚本的相关知识了
整数在计算机中有很多种存储方法，主要有下面三种：无符号表示法、符号加绝对值表示法和二进制补码表示法...
_bt_bss_start' /opt/esp/tools/xtensa-esp32-elf/esp-2021r2-patch5-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: esp-idf/bt/libbt.a(bt.c.obj):(.literal.esp_bt_mem_release+0x4): undefined reference to `_bt_bss_end...
+ HIDDEN(__bss_base = .); } - .bss __bss_start (OVERLAY) : { + .bss __bss_base (OVERLAY) : { *(.bss*) . = ALIGN(4); - __bss_end = .; + HIDDEN(__bss_limit = .); } - .bss_end __bss_end (OVERLAY) : { ...
Mobile application for the STARTBSS system, software for easy and efficient business. Thanks to this mobile application, you will always have an overview of wh…
_bss_start _bss_start: .word __bss_start .globl _bss_end _bss_end: .word __bss_end clr_bss: mov ip, sp push {fp,ip,lr,pc} sub fp, ip, #4 ldr r0,_bss_start ldr r1,_bss_end mov r2,#0 forclrbss: cmp r0,r1 bge endclrbss strb r2,[r0],#1 b forclrbss endclrbss:...
Mobile application for the STARTBSS system, software for easy and efficient business. Thanks to this mobile application, you will always have an overview of wh…