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Technical Support
On-Line Manuals
Compiler Reference Guide
Preface
Arm Compiler Tools Overview
armclang Reference
armlink Reference
armlink Command-line Options
--any_contingency
--any_placement=algorithm
--any_sort_order=order
--api, --no_api
--autoat, --no_autoat
--bare_metal_pie
--base_platform
--be8
--be32
--bestdebug, --no_bestdebug
--blx_arm_thumb, --no_blx_arm_thumb
--blx_thumb_arm, --no_blx_thumb_arm
--bpabi
--branchnop, --no_branchnop
--callgraph, --no_callgraph
--callgraph_file=filename
--callgraph_output=fmt
--callgraph_subset=symbol[,symbol,...]
--cgfile=type
--cgsymbol=type
--cgundefined=type
--comment_section, --no_comment_section
--cppinit, --no_cppinit
--cpu=list (armlink)
--cpu=name (armlink)
--crosser_veneershare, --no_crosser_veneershare
--dangling-debug-address=address
--datacompressor=opt
--debug, --no_debug
--diag_error=tag[,tag,…] (armlink)
--diag_remark=tag[,tag,…] (armlink)
--diag_style={arm|ide|gnu} (armlink)
--diag_suppress=tag[,tag,…] (armlink)
--diag_warning=tag[,tag,…] (armlink)
--dll
--dynamic_linker=name
--eager_load_debug, --no_eager_load_debug
--eh_frame_hdr
--edit=file_list
--emit_debug_overlay_relocs
--emit_debug_overlay_section
--emit_non_debug_relocs
--emit_relocs
--entry=location
--errors=filename
--exceptions, --no_exceptions
--export_all, --no_export_all
--export_dynamic, --no_export_dynamic
--filtercomment, --no_filtercomment
--fini=symbol
--first=section_id
--force_explicit_attr
--force_so_throw, --no_force_so_throw
--fpic
--fpu=list (armlink)
--fpu=name (armlink)
--got=type
--gnu_linker_defined_syms
--help (armlink)
--import_cmse_lib_in=filename
--import_cmse_lib_out=filename
--import_unresolved, --no_import_unresolved
--info=topic[,topic,…] (armlink)
--info_lib_prefix=opt
--init=symbol
--inline, --no_inline
--inline_type=type
--inlineveneer, --no_inlineveneer
input-file-list (armlink)
--keep=section_id (armlink)
--keep_intermediate
--largeregions, --no_largeregions
--last=section_id
--legacyalign, --no_legacyalign
--libpath=pathlist
--library=name
--library_security=protection
--library_type=lib
--list=filename
--list_mapping_symbols, --no_list_mapping_symbols
--load_addr_map_info, --no_load_addr_map_info
--locals, --no_locals
--lto, --no_lto
--lto_keep_all_symbols, --no_lto_keep_all_symbols
--lto_intermediate_filename
--lto_level
--lto_relocation_model
--mangled, --unmangled
--map, --no_map
--max_er_extension=size
--max_veneer_passes=value
--max_visibility=type
--merge, --no_merge
--merge_litpools, --no_merge_litpools
--muldefweak, --no_muldefweak
-o filename, --output=filename (armlink)
--output_float_abi=option
--overlay_veneers
--override_visibility
-Omax (armlink)
-Omin (armlink)
--pad=num
--paged
--pagesize=pagesize
--partial
--pie
--piveneer, --no_piveneer
--pixolib
--pltgot=type
--pltgot_opts=mode
--predefine="string"
--preinit, --no_preinit
--privacy (armlink)
--ref_cpp_init, --no_ref_cpp_init
--ref_pre_init, --no_ref_pre_init
--reloc
--remarks
--remove, --no_remove
--ro_base=address
--ropi
--rosplit
--rw_base=address
--rwpi
--scanlib, --no_scanlib
--scatter=filename
--section_index_display=type
--shared
--show_cmdline (armlink)
--show_full_path
--show_parent_lib
--show_sec_idx
--soname=name
--sort=algorithm
--split
--startup=symbol, --no_startup
--stdlib
--strict
--strict_flags, --no_strict_flags
--strict_ph, --no_strict_ph
--strict_preserve8_require8
--strict_relocations, --no_strict_relocations
--strict_symbols, --no_strict_symbols
--strict_visibility, --no_strict_visibility
--symbols, --no_symbols
--symdefs=filename
--symver_script=filename
--symver_soname
--sysv
--tailreorder, --no_tailreorder
--tiebreaker=option
--unaligned_access, --no_unaligned_access
--undefined=symbol
--undefined_and_export=symbol
--unresolved=symbol
--use_definition_visibility
--userlibpath=pathlist
--veneerinject, --no_veneerinject
--veneer_inject_type=type
--veneer_pool_size=size
--veneershare, --no_veneershare
--verbose
--version_number (armlink)
--via=filename (armlink)
--vsn (armlink)
--xo_base=address
--xref, --no_xref
--xrefdbg, --no_xrefdbg
--xref{from|to}=object(section)
--zi_base=address
Linking Models Supported by armlink
Overview of linking models
Bare-metal linking model overview
Partial linking model overview
Base Platform Application Binary Interface (BPABI)
Base Platform linking model overview
SysV linking model overview
Concepts common to both BPABI and SysV linking mod
Image Structure and Generation
The structure of an Arm ELF image
Views of the image at each link stage
Input sections, output sections, regions, and prog
Load view and execution view of an image
Methods of specifying an image memory map with the
Image entry points
Restrictions on image structure
Simple images
Types of simple image
Type 1 image structure, one load region and contig
Type 2 image structure, one load region and non-co
Type 3 image structure, multiple load regions and
Section placement with the linker
Default section placement
Section placement with the FIRST and LAST attribut
Section alignment with the linker
Linker support for creating demand-paged files
Linker reordering of execution regions containing
Linker-generated veneers
What is a veneer?
Veneer sharing
Veneer types
Generation of position independent to absolute ven
Reuse of veneers when scatter-loading
Generation of secure gateway veneers
Command-line options used to control the generatio
Weak references and definitions
How the linker performs library searching, selecti
How the linker searches for the Arm standard libra
Specifying user libraries when linking
How the linker resolves references
The strict family of linker options
Linker Optimization Features
Elimination of common section groups
Elimination of unused sections
Optimization with RW data compression
How the linker chooses a compressor
Options available to override the compression algo
How compression is applied
Considerations when working with RW data compressi
Function inlining with the linker
Factors that influence function inlining
About branches that optimize to a NOP
Linker reordering of tail calling sections
Restrictions on reordering of tail calling section
Linker merging of comment sections
Merging identical constants
Accessing and Managing Symbols with armlink
About mapping symbols
Linker-defined symbols
Region-related symbols
Types of region-related symbols
Image$$ execution region symbols
Load$$ execution region symbols
Load$$LR$$ load region symbols
Region name values when not scatter-loading
Linker defined symbols and scatter files
Methods of importing linker-defined symbols in C a
Methods of importing linker-defined symbols in Arm
Section-related symbols
Types of section-related symbols
Image symbols
Input section symbols
Access symbols in another image
Creating a symdefs file
Outputting a subset of the global symbols
Reading a symdefs file
Symdefs file format
Edit the symbol tables with a steering file
Specifying steering files on the linker command-li
Steering file command summary
Steering file format
Hide and rename global symbols with a steering fil
Use of $Super$$ and $Sub$$ to patch symbol definit
Scatter-loading Features
The scatter-loading mechanism
Overview of scatter-loading
When to use scatter-loading
Linker-defined symbols that are not defined when s
Placing the stack and heap with a scatter file
Scatter-loading command-line options
Scatter-loading images with a simple memory map
Scatter-loading images with a complex memory map
Root region and the initial entry point
Effect of the ABSOLUTE attribute on a root region
Effect of the FIXED attribute on a root region
Methods of placing functions and data at specific
Placing functions and data in a named section
Placement of __at sections at a specific address
Restrictions on placing __at sections
Automatic placement of __at sections
Manual placement of __at sections
Place a key in flash memory with an __at section
Example of how to explicitly place a named section
Manual placement of unassigned sections
Default rules for placing unassigned sections
Command-line options for controlling the placement
Prioritizing the placement of unassigned sections
Specify the maximum region size permitted for plac
Examples of using placement algorithms for .ANY se
Example of next_fit algorithm showing behavior of
Examples of using sorting algorithms for .ANY sect
Behavior when .ANY sections overflow because of li
Placing veneers with a scatter file
Placement of CMSE veneer sections for a Secure ima
Reserving an empty block of memory
Characteristics of a reserved empty block of memor
Example of reserving an empty block of memory
Placement of Arm C and C++ library code
Placement of code in a root region
Placement of Arm C library code
Placing Arm C++ library code
Alignment of regions to page boundaries
Alignment of execution regions and input sections
Preprocessing a scatter file
Default behavior for armclang -E in a scatter file
Use of other preprocessors in a scatter file
Example of using expression evaluation in a scatte
Equivalent scatter-loading descriptions for simple
Command-line options for creating simple images
Type 1 image, one load region and contiguous execu
Type 2 image, one load region and non-contiguous e
Type 3 image, multiple load regions and non-contig
How the linker resolves multiple matches when proc
How the linker resolves path names when processing
Scatter file to ELF mapping
Scatter File Syntax
BNF notation used in scatter-loading description s
Syntax of a scatter file
Load region descriptions
Components of a load region description
Syntax of a load region description
Load region attributes
Inheritance rules for load region address attribut
Inheritance rules for the RELOC address attribute
Considerations when using a relative address +offs
Execution region descriptions
Components of an execution region description
Syntax of an execution region description
Execution region attributes
Inheritance rules for execution region address att
Considerations when using a relative address +offs
Input section descriptions
Components of an input section description
Syntax of an input section description
Examples of module and input section specification
Expression evaluation in scatter files
Expression usage in scatter files
Expression rules in scatter files
Execution address built-in functions for use in sc
ScatterAssert function and load address related fu
Symbol related function in a scatter file
AlignExpr(expr, align) function
GetPageSize() function
SizeOfHeaders() function
Example of aligning a base address in execution sp
Scatter files containing relative base address loa
BPABI and SysV Shared Libraries and Executables
About the Base Platform Application Binary Interfa
Platforms supported by the BPABI
Features common to all BPABI models
About importing and exporting symbols for BPABI mo
Symbol visibility for BPABI models
Automatic import and export for BPABI models
Manual import and export for BPABI models
Symbol versioning for BPABI models
RW compression for BPABI models
SysV linking model
SysV standard memory model
Using the C and C++ libraries
Using a dynamic Linker
Automatic dynamic symbol table rules in the SysV l
Symbol definitions defined for SysV compatibility
Addressing modes in the SysV linking model
Thread local storage in the SysV linking model
Linker command-line options for the SysV linking m
Bare metal and DLL-like memory models
BPABI standard memory model
Customization of the BPABI standard memory model
Linker command-line options for bare metal and DLL
Mandatory symbol versioning in the BPABI DLL-like
Automatic dynamic symbol table rules in the BPABI
Addressing modes in the BPABI DLL-like model
C++ initialization in the BPABI DLL-like model
Symbol versioning
Overview of symbol versioning
Embedded symbols
The symbol versioning script file
Example of creating versioned symbols
Linker options for enabling implicit symbol versio
Features of the Base Platform Linking Model
Restrictions on the use of scatter files with the
Scatter files for the Base Platform linking model
Placement of PLT sequences with the Base Platform
Linker Steering File Command Reference
EXPORT steering file command
HIDE steering file command
IMPORT steering file command
RENAME steering file command
REQUIRE steering file command
RESOLVE steering file command
SHOW steering file command
fromelf Reference
armar Reference
armasm Legacy Assembler Reference
Appendixes
--inline, --no_inline
| Non-Confidential |  PDF version | 101754_0616_01_en | ||
| ||||
| Home > armlink Reference > armlink Command-line Options > --inline, --no_inline | ||||
C1.66 --inline, --no_inline
Enables or disables branch inlining to optimize small function calls in your image.
Note:
Not supported for AArch64 state.Default
The default is --no_inline.
Note:
This branch optimization is off by default because enabling it changes the image such that debug information might be incorrect. If enabled, the linker makes no attempt to correct the debug information.
--no_inline turns off
inlining for user-supplied objects only. The linker still inlines functions from the
Arm® standard
libraries by default.
Related concepts
| Non-Confidential | PDF version | 101754_0616_01_en |
| Copyright © 2019–2021 Arm Limited or its affiliates. All rights reserved. |
| Home > armlink Reference > armlink Command-line Options > --inline, --no_inline |
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