* config/sparc/linux.h (ASAN_CC1_SPEC): Define.
	(CC1_SPEC): Use GNU_USER_TARGET_CC1_SPEC and ASAN_CC1_SPEC.
	* config/sparc/linux64.h (ASAN_CC1_SPEC): Likewise.
	(CC1_SPEC): Likewise.
	* config/sparc/sparc.c (sparc_asan_shadow_offset): Adjust for 64-bit.

From-SVN: r268950