ARM Compiler toolchain Using the Linker - ARM Information Center

9.5 Recommendations for using ld scripts with armlink
GNU ld script support in armlink
Follow these recommendations when producing ld scripts for use with armlink:
9.5.1 Recommendations for producing ld scripts for ARM Linux
9.5.2 General recommendations
9.5.3 See also
The dynamic loader requires some output sections with a specific type to work properly. These
are:
• Hash Table
• String Table
• Dynamic Symbol Table
• Dynamic Section
• Version Sections
• Thread Local Storage Sections.
The following are general recommendations:
• Make sure each output section has a homogenous type. For example:
.text : { *(.text) }
.data : { *(.data) }
.bss : { *(.bss) }
This is preferred to the following:
.stuff
{
*(.text)
*(.data)
*(.bss)
}
• If you are running the ELF file on ARM Linux do not modify the location of the meta-data
used by the dynamic linker.
• Sections not matched by the SECTIONS command are marked as orphans. The linker places
orphan sections in appropriate locations. The linker attempts to match the placement of
orphans used by ld although this is not always possible. Use explicit placement if you do
not like how armlink places orphans.
Concepts
• About GNU ld script support and restrictions on page 9-2
• Important ld script commands that are implemented in armlink on page 9-4
• Specific restrictions for using ld scripts with armlink on page 9-6.
Reference
Linker Reference:
• --linker_script=ld_script on page 2-100
• --symver_script=file on page 2-167.
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