米6体育平台手机版

SLAU132V October 2004 – February 2020

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2.3.1 Linker Options

The following tables list the linker options. See Section 4 of this document and the MSP430 Assembly Language Tools User's Guide for details on these options.

Table 2-23 Linker Basic Options

Option	Alias	Description
--run_linker	-z	Enables linking.
--output_file=file	-o	Names the executable output file. The default filename is a .out file.
--map_file=file	-m	Produces a map or listing of the input and output sections, including holes, and places the listing in file.
--stack_size=size	[-]-stack	Sets C system stack size to sizebytes and defines a global symbol that specifies the stack size. Default = 128 bytes.
--heap_size=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.

Table 2-24 File Search Path Options

Option	Alias	Description
--library=file	-l	Names an archive library or link command file as linker input.
--disable_auto_rts		Disables the automatic selection of a run-time-support library. See Section 4.3.1.1.
--priority	-priority	Satisfies unresolved references by the first library that contains a definition for that symbol.
--reread_libs	-x	Forces rereading of libraries, which resolves back references.
--search_path=pathname	`-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.

Table 2-25 Command File Preprocessing Options

Option	Alias	Description
--define=name=value		Predefines name as a preprocessor macro.
--undefine=name		Removes the preprocessor macro name.
--disable_pp		Disables preprocessing for command files.

Table 2-26 Diagnostic Message Options

Option	Alias	Description
--diag_error=num		Categorizes the diagnostic identified by num as an error.
--diag_remark=num		Categorizes the diagnostic identified by num as a remark.
--diag_suppress=num		Suppresses the diagnostic identified by num.
--diag_warning=num		Categorizes the diagnostic identified by num as a warning.
--display_error_number		Displays a diagnostic's identifiers along with its text.
--emit_references:file[=file]		Emits a file containing section information. The information includes section size, symbols defined, and references to symbols.
--emit_warnings_as_errors	-pdew	Treat warnings as errors.
--issue_remarks		Issues remarks (non-serious warnings).
--no_demangle		Disables demangling of symbol names in diagnostic messages.
--no_warnings		Suppresses diagnostic warnings (errors are still issued).
--set_error_limit=count		Sets the error limit to count. The linker abandons linking after this number of errors. (The default is 100.)
--verbose_diagnostics		Provides verbose diagnostic messages that display the original source with line-wrap.
--warn_sections	-w	Displays a message when an undefined output section is created.

Table 2-27 Linker Output Options

Option	Alias	Description
--absolute_exe	-a	Produces an absolute, executable object file. This is the default; if neither --absolute_exe nor --relocatable is specified, the linker acts as if --absolute_exe were specified.
--ecc={ on \| off }		Enable linker-generated Error Correcting Codes (ECC). The default is off.
--ecc:data_error		Inject specified errors into the output file for testing.
--ecc:ecc_error		Inject specified errors into the Error Correcting Code (ECC) for testing.
--mapfile_contents=attribute		Controls the information that appears in the map file.
--relocatable	-r	Produces a nonexecutable, relocatable output object file.
--rom		Creates a ROM object.
--run_abs	-abs	Produces an absolute listing file.
--xml_link_info=file		Generates a well-formed XML file containing detailed information about the result of a link.

Table 2-28 Symbol Management Options

Option	Alias	Description
--entry_point=symbol	-e	Defines a global symbol that specifies the primary entry point for the executable object file.
--globalize=pattern		Changes the symbol linkage to global for symbols that match pattern.
--hide=pattern		Hides symbols that match the specified pattern.
--localize=pattern		Make the symbols that match the specified pattern local.
--make_global=symbol	-g	Makes symbol global (overrides -h).
--make_static	-h	Makes all global symbols static.
--no_symtable	-s	Strips symbol table information and line number entries from the executable object file.
--retain		Retains a list of sections that otherwise would be discarded.
--scan_libraries	-scanlibs	Scans all libraries for duplicate symbol definitions.
--symbol_map=refname=defname		Specifies a symbol mapping; references to the refname symbol are replaced with references to the defname symbol. The --symbol_map option is supported when used with --opt_level=4.
--undef_sym=symbol	-u	Adds symbol to the symbol table as an unresolved symbol.
--unhide=pattern		Excludes symbols that match the specified pattern from being hidden.

Table 2-29 Run-Time Environment Options

Option	Alias	Description
--arg_size=size	--args	Reserve size bytes for the argc/argv memory area.
--cinit_hold_wdt={on\|off}		Link in an RTS auto-initialization routine that either holds (on) or does not hold (off) the watchdog timer during cinit auto-initialization. See Section 4.3.5.
--cinit_compression[=type]		Specifies the type of compression to apply to the C auto initialization data. The default if this option is specified with no type is lzss for Lempel-Ziv-Storer-Szymanski compression.
--copy_compression[=type]		Compresses data copied by linker copy tables. The default if this option is specified with no type is lzss for Lempel-Ziv-Storer-Szymanski compression.
--fill_value=value	-f	Sets default fill value for holes within output sections
--ram_model	-cr	Initializes variables at load time. See Section 4.3.7 for details.
--rom_model	-c	Autoinitializes variables at run time. See Section 4.3.7 for details.
--use_hw_mpy		This option is a compiler option. It should be placed on the command line before the --run_linker or -z option. See Section 2.3.4.

Table 2-30 Miscellaneous Options

Option	Alias	Description
--linker_help	[-]-help	Displays information about syntax and available options.
--preferred_order=function		Prioritizes placement of functions.
--strict_compatibility[=off\|on]		Performs more conservative and rigorous compatibility checking of input object files. Default is on.
--unused_section_elimination[=off\|on]		Eliminates sections that are not needed in the executable module. Default is on.