SLAU131V October 2004 – February 2020
Linker options control linking operations. They can be placed on the command line or in a command file. Linker options must be preceded by a hyphen (-). Options can be separated from arguments (if they have them) by an optional space.
Option | Alias | Description | Section |
---|---|---|---|
--run_linker | -z | Enables linking | Section 8.3 |
--output_file | -o | Names the executable output module. The default filename is a.out. | Section 8.4.22 |
--map_file | -m | Produces a map or listing of the input and output sections, including holes, and places the listing in filename | Section 8.4.17 |
--stack_size | -stack | Sets C system stack size to sizebytes and defines a global symbol that specifies the stack size. Default = 128 bytes | Section 8.4.28 |
--heap_size | -heap | Sets heap size (for the dynamic memory allocation in C) to sizebytes and defines a global symbol that specifies the heap size. Default = 128 bytes | Section 8.4.13 |
Option | Alias | Description | Section |
---|---|---|---|
--library | -l | Names an archive library or link command filename as linker input | Section 8.4.15 |
--disable_auto_rts | Disables the automatic selection of a run-time-support library | Section 8.4.7 | |
--priority | -priority | Satisfies unresolved references by the first library that contains a definition for that symbol | Section 8.4.15.3 |
--reread_libs | -x | Forces rereading of libraries, which resolves back references | Section 8.4.15.3 |
--search_path | -i | Alters library-search algorithms to look in a directory named with pathname before looking in the default location. This option must appear before the --library option. | Section 8.4.15.1 |
Option | Alias | Description | Section |
---|---|---|---|
--define | Predefines name as a preprocessor macro. | Section 8.4.9 | |
--undefine | Removes the preprocessor macro name. | Section 8.4.9 | |
--disable_pp | Disables preprocessing for command files | Section 8.4.9 |
Option | Alias | Description | Section |
---|---|---|---|
--diag_error | Categorizes the diagnostic identified by num as an error | Section 8.4.6 | |
--diag_remark | Categorizes the diagnostic identified by num as a remark | Section 8.4.6 | |
--diag_suppress | Suppresses the diagnostic identified by num | Section 8.4.6 | |
--diag_warning | Categorizes the diagnostic identified by num as a warning | Section 8.4.6 | |
--display_error_number | Displays a diagnostic's identifiers along with its text | Section 8.4.6 | |
--emit_references:file[=file] | Emits a file containing section information. The information includes section size, symbols defined, and references to symbols. | Section 8.4.6 | |
--emit_warnings_as_errors | -pdew | Treats warnings as errors | Section 8.4.6 |
--issue_remarks | Issues remarks (nonserious warnings) | Section 8.4.6 | |
--no_demangle | Disables demangling of symbol names in diagnostics | Section 8.4.19 | |
--no_warnings | Suppresses warning diagnostics (errors are still issued) | Section 8.4.6 | |
--set_error_limit | Sets the error limit to num. The linker abandons linking after this number of errors. (The default is 100.) | Section 8.4.6 | |
--verbose_diagnostics | Provides verbose diagnostics that display the original source with line-wrap | Section 8.4.6 | |
--warn_sections | -w | Displays a message when an undefined output section is created | Section 8.4.33 |
Option | Alias | Description | Section |
---|---|---|---|
--absolute_exe | -a | Produces an absolute, executable module. This is the default; if neither --absolute_exe nor --relocatable is specified, the linker acts as if --absolute_exe were specified. | Section 8.4.3.1 |
--ecc={ on | off } | Enable linker-generated Error Correcting Codes (ECC). The default is off. | Section 8.4.10
Section 8.5.9 |
|
--ecc:data_error | Inject the specified errors into the output file for testing | Section 8.4.10
Section 8.5.9 |
|
--ecc:ecc_error | Inject the specified errors into the Error Correcting Code (ECC) for testing | Section 8.4.10
Section 8.5.9 |
|
--mapfile_contents | Controls the information that appears in the map file. | Section 8.4.18 | |
--relocatable | -r | Produces a nonexecutable, relocatable output module | Section 8.4.3.2 |
--rom | -r | Create a ROM object | |
--run_abs | -abs | Produces an absolute listing file | Section 8.4.26 |
--xml_link_info | Generates a well-formed XML file containing detailed information about the result of a link | Section 8.4.34 |
Option | Alias | Description | Section |
---|---|---|---|
--entry_point | -e | Defines a global symbol that specifies the primary entry point for the output module | Section 8.4.11 |
--globalize | Changes the symbol linkage to global for symbols that match pattern | Section 8.4.16 | |
--hide | Hides global symbols that match pattern | Section 8.4.14 | |
--localize | Changes the symbol linkage to local for symbols that match pattern | Section 8.4.16 | |
--make_global | -g | Makes symbol global (overrides -h) | Section 8.4.16.1 |
--make_static | -h | Makes all global symbols static | Section 8.4.16.1 |
--no_symtable | -s | Strips symbol table information and line number entries from the output module | Section 8.4.21 |
--retain | Retains a list of sections that otherwise would be discarded | Section 8.4.25 | |
--scan_libraries | -scanlibs | Scans all libraries for duplicate symbol definitions | Section 8.4.27 |
--symbol_map | Maps symbol references to a symbol definition of a different name | Section 8.4.30 | |
--undef_sym | -u | Places an unresolved external symbol into the output module's symbol table | Section 8.4.31 |
--unhide | Reveals (un-hides) global symbols that match pattern | Section 8.4.14 |
Option | Alias | Description | Section |
---|---|---|---|
--arg_size | --args | Allocates memory to be used by the loader to pass arguments | Section 8.4.4 |
--cinit_hold_wdt={on|off} | Hold (on) or do not hold (off) watchdog timer during cinit auto-initialization. | Section 8.11.5 | |
--fill_value | -f | Sets default fill values for holes within output sections; fill_value is a 32-bit constant | Section 8.4.12 |
--ram_model | -cr | Initializes variables at load time | Section 8.4.24 |
--rom_model | -c | Autoinitializes variables at run time | Section 8.4.24 |
--use_hw_mpy[={16|32|F5|none}] | This option is now a compiler option. It should be placed on the command line before the --run_linker or -z option. See the MSP430 Optimizing C/C++ Compiler User's Guide for details. | -- |
Option | Alias | Description | Section |
---|---|---|---|
--cinit_compression [=compression_kind] | Specifies the type of compression to apply to the C auto initialization data. The default if this option is used with no kind specified is lzss for Lempel-Ziv-Storer-Szymanski compression. Alternately, specify --cinit_compression=rle to use Run Length Encoded compression, which generally provides less efficient compression. | Section 8.4.5 | |
--copy_compression [=compression_kind] | Compresses data copied by linker copy tables | Section 8.4.5 | |
--unused_section_elimination | Eliminates sections that are not needed in the executable module; on by default | Section 8.4.8 |
Option | Alias | Description | Section |
---|---|---|---|
--linker_help | -help | Displays information about syntax and available options | – |
--preferred_order | Prioritizes placement of functions | Section 8.4.23 | |
--strict_compatibility | Performs more conservative and rigorous compatibility checking of input object files | Section 8.4.29 |