2011-02-13 Ivan Maidanski <ivmai@mail.ru>

2011-02-13  Ivan Maidanski  <ivmai@mail.ru>

	* mark.c (GC_mark_some): Prefix and suffix "asm" and "volatile"
	keywords with double underscore.
	* os_dep.c (GC_unix_get_mem): Reformat the code.
	* os_dep.c (catch_exception_raise, catch_exception_raise_state,
	catch_exception_raise_state_identity): Add GC_API_OSCALL to
	function definition.
	* os_dep.c (catch_exception_raise_state,
	catch_exception_raise_state_identity): Move definition to be
	before GC_ports.
	* os_dep.c (catch_exception_raise): Declare to have the symbol
	defined before GC_ports.
	* os_dep.c (GC_ports): Store references to catch_exception_raise,
	catch_exception_raise_state, catch_exception_raise_state_identity
	(to prevent stripping these symbols as dead).
	* os_dep.c (catch_exception_raise, catch_exception_raise_state,
	catch_exception_raise_state_identity): Mark these symbols as
	"referenced dynamically" via an assembler directive (unless
	NO_DESC_CATCH_EXCEPTION_RAISE).
	* include/private/gc_priv.h (GC_API_OSCALL): New macro (defined
	similar to GC_API but as if GC_DLL is always defined).