ARM技术文档：分散加载常用玩法专题

eric2013

https://developer.arm.com/documentation/dui0474/f/using-scatter-files









Tasks

• Specifying stack and heap using the scatter file
• Creating root execution regions
• Using the FIXED attribute to create root regions
• Placing functions and data at specific addresses
• Placing a named section explicitly using scatter-loading
• Placing unassigned sections with the .ANY module selector
• Selecting veneer input sections in scatter-loading descriptions
• Using __attribute__((section("name"))) to place code and data
• Using __at sections to place sections at a specific address
• Placing a key in flash memory using __at
• Placing a structure over a peripheral register using __at
• Reserving an empty region
• Using preprocessing commands in a scatter file
• Using expression evaluation in a scatter file to avoid padding.
  
  

Concepts

• About scatter-loading
• When to use scatter-loading
• Scatter-loading command-line option
• Images with a simple memory map
• Images with a complex memory map
• Linker-defined symbols that are not defined when scatter-loading
• What is a root region?
• Examples of using placement algorithms for .ANY sections
• Example of next_fit algorithm showing behavior of full regions, selectors, and priority
• Examples of using sorting algorithms for .ANY sections
• Restrictions on placing __at sections
• Automatic placement of __at sections
• Manual placement of __at sections
• Placement of sections with overlays
• About placing ARM C and C++ library code
• Example of placing code in a root region
• Example of placing ARM C library code
• Example of placing ARM C++ library code
• Example of placing ARM library helper functions
• About creating regions on page boundaries
• Overalignment of execution regions and input sections
• Expression evaluation in scatter files
• Equivalent scatter-loading descriptions for simple images
• Type 1 image, one load region and contiguous execution regions
• Type 2 image, one load region and non-contiguous execution regions
• Type 3 image, two load regions and non-contiguous execution regions
• Scatter file to ELF mapping.
  
  

wdliming

是不是不同版本文档都不一样？？

eric2013

wdliming 发表于 2021-8-18 12:38
是不是不同版本文档都不一样？？

略有区别。

yklstudent

虽然暂时用不上，还是关注收藏下