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Assembler User Guide

Preface Overview of the Assembler Overview of the ARM Architecture Structure of Assembly Language Modules Writing ARM Assembly Language Condition Codes Using the Assembler Symbols, Literals, Expressions, and Operators VFP Programming Assembler Command-line Options --16 --32 --apcs=qualifier…qualifier --arm --arm_only --bi --bigend --brief_diagnostics, --no_brief_diagnostics --checkreglist --comment_section, --no_comment_section --compatible=name --cpreproc --cpreproc_opts=option[,option,…] --cpu=list --cpu=name --debug --depend=dependfile --depend_format=string --diag_error=tag[,tag,…] --diag_remark=tag[,tag,…] --diag_style={arm|ide|gnu} --diag_suppress=tag[,tag,…] --diag_warning=tag[,tag,…] --dllexport_all --dwarf2 --dwarf3 --errors=errorfile --execstack, --no_execstack --execute_only --exceptions, --no_exceptions --exceptions_unwind, --no_exceptions_unwind --fpmode=model --fpu=list --fpu=name -g --help -idir[,dir, …] --keep --length=n --li --library_type=lib --liclinger=seconds --list=file --list= --littleend -m --maxcache=n --md --no_code_gen --no_esc --no_hide_all --no_regs --no_terse --no_warn -o filename --pd --predefine "directive" --reduce_paths, --no_reduce_paths --regnames --report-if-not-wysiwyg --show_cmdline --split_ldm --thumb --thumbx --unaligned_access, --no_unaligned_access --unsafe --untyped_local_labels --version_number --via=filename --vsn --width=n --xref ARM and Thumb Instructions VFP Instructions Directives Reference Via File Syntax

--execute_only

9.29 --execute_only

Adds the EXECONLY AREA attribute to all code sections.

Usage

The EXECONLY AREA attribute causes the linker to treat the section as execute-only.
It is the user's responsibility to ensure that the code in the section is safe to run in execute-only memory. For example:
  • The code must not contain literal pools.
  • The code must not attempt to load data from the same, or another, execute-only section.

Restrictions

This option is only supported for:
  • Processors that support the ARMv7-M architecture, such as Cortex-M3, Cortex-M4, and Cortex-M7.
  • Processors that support the ARMv6-M architecture.

    Note

    ARM has only performed limited testing of execute-only code on ARMv6-M targets.
Related reference
Non-ConfidentialPDF file icon PDF versionARM DUI0379H
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