ARM Compiler toolchain Using the Linker - ARM Information Center

Change Topics affected
Revisions for Using the Linker
Table A-3 Differences between Issue A and Issue B
Added a note about the 64-bit linker support. About the linker on page 2-2
Added links to new command-line options in the Linker
Reference.
Linker command-line options listed in groups on
page 2-5
Added a note about Program Segment size limit. • The image structure on page 4-3
• Input sections, output sections, regions, and
Program Segments on page 4-5.
Added a table to compare scatter file with equivalent
command-line options.
Methods of specifying an image memory map with
the linker on page 4-8
Added information on handling unassigned sections. Section placement with the linker on page 4-19
The PROTECTED keyword also prevents overlapping of load
regions.
Reuse of veneers when scatter-loading on page 4-30
Added an overview topic for mapping symbols. About mapping symbols on page 7-3
Added Load$$ ZI output section symbols. Load$$ execution region symbols on page 7-7
Added a topic to show how to import linker-defined symbols
in ARM assembler.
Added examples to show how to place code and data at
specific addresses.
Added topics that describe the use of the .ANY module
selector.
Added information about the affect various linker features
have when using __attribute__((section("name"))).
Added information about +offset execution region and
overlay execution regions.
Removed the GNU ld script keywords ABSOLUTE, ADDR,
ALIGNOF, DEFINED, EXTERN, LOADADDR, and SIZEOF from the list
of unsupported keywords, because they are now supported.
Modified the default ld scripts for executable and shared
objects to align to 4 bytes after .bss region.
Importing linker-defined symbols in ARM assembler
on page 7-13
Placing functions and data at specific addresses on
page 8-18
• Placing unassigned sections with the .ANY
module selector on page 8-25
• Examples of using placement algorithms for
.ANY sections on page 8-28
• Example of next_fit algorithm showing
behavior of full regions, selectors, and
priority on page 8-30
• Examples of using sorting algorithms for
.ANY sections on page 8-32.
Using __attribute__((section("name"))) on
page 8-35
Placement of sections with overlays on page 8-44
Specific restrictions for using ld scripts with armlink
on page 9-6
Default GNU ld scripts used by armlink on page 9-8
Added the default ld script that is used for --ldpartial. Default GNU ld scripts used by armlink on page 9-8
Moved the Base Platform linking model topics to Features
of the Base Platform linking model.
• Restrictions on the use of scatter files with the
Base Platform model on page 11-2
• Example scatter file for the Base Platform
linking model on page 11-5
• Placement of PLT sequences with the Base
Platform model on page 11-7.
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