t-linux64

linux下的gcc编译器

# On x86-64 we do not need any exports for glibc for 64-bit libgcc_s,
# override the settings
# from t-slibgcc-elf-ver and t-linux
SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver \
		 $(srcdir)/config/i386/libgcc-x86_64-glibc.ver

MULTILIB_OPTIONS = m64/m32
MULTILIB_DIRNAMES = 64 32 
MULTILIB_OSDIRNAMES = ../lib64 ../lib

LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib

EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o

# The pushl in CTOR initialization interferes with frame pointer elimination.
# crtend*.o cannot be compiled without -fno-asynchronous-unwind-tables,
# because then __FRAME_END__ might not be the last thing in .eh_frame
# section.
CRTSTUFF_T_CFLAGS = -fno-omit-frame-pointer -fno-asynchronous-unwind-tables