HP UX Fortran Software Symbol binding options, Bdefault=symbol,symbol, Bextern =symbol ,symbol

+DA2.0W is specified), the +Zoption is on by default. This is the only PIC option supported for 64-bit executables.

NOTE: To not generate position-independent code for

64-bit executables, specify the -W1, -noshared option:

Symbol binding options

The following -B options are recognized by HP Fortran to specify whether references to global symbols may be resolved to symbols defined in the current translation unit, or whether they must be assumed to be potentially resolved to symbols defined in another load module.

All -B options are applied in a ‘left to right’ order so that options at the end of a string may supercede those that appear earlier in the string.

-Bdefault=symbol[,symbol...]	The named symbols are assigned the default export class.
	These symbols may be imported or exported outside of the
	current load module. The compiler will access tentative
	symbols through the linkage table. Any symbol that is not
	assigned to another export class through use of another
	-Boption (or the deprecated +O[no]extern option) will
	have the default on a per-symbol basis to specify exceptions
	to global -Bprotected,-Bhidden,or-Bextern options.
-Bdefault:filename	The file indicated by filename contains a list of symbols,
	separated by spaces or newlines. These symbols are
	assigned the default export class.
-Bextern[=symbol [,symbol...]]	The named symbols, or all undefined symbols if no list is
	provided, are assigned the default export class.
	Additionally, the compiler will inline the import stub for
	calls to these symbols. No compile-time binding of these
	symbols will be done. All references to these symbols will
	be through the linkage table, so an unnecessary
	performance penalty will occur if -Bexternis applied to
	a listed symbol that is resolved in the same load module.
-Bextern:filename	The file indicated by filename contains a list of symbols,
	separated by spaces or newlines. These symbols are
	assigned the default export class. Additionally, the compiler
	will inline the import stub for calls to these symbols. No
	compile-time binding of these symbols will be done. All
	references to these symbols will be through the linkage
	table, so an unnecessary performance penalty will occur
	if -Bexternis applied to a symbol that is resolved in the
	same load module.
Bhidden [=symbol [,symbol...]]	The named symbols, or all symbols if no symbols are
	specified, are assigned the hidden export class. The hidden
	export class is similar to the protected export class. These
	symbols will not be preempted by symbols from other load
	modules, so the compiler may bypass the linkage table for
	both code and data references and bind them to
	locally-defined code and data symbols. In addition, hidden
	symbols will not be exported outside the current load
	module. The linker may eliminate them from a shared
	library, but in an executable, they remain accessible to the
	debugger unless +Oprocelim is also specified.
	When used with no symbol list,-BhiddenimpliesW1,
	-aarchive_shared, causing the linker to prefer an
	archive library over a shared library if one is available.
	This can be overridden by following the -Bhiddenoption
	with a subsequent -W1,-aoption.

Symbol binding options 37