mconfig

klibc精简化的c程序库

# -*- makefile -*-
#
# arch/i386/MCONFIG
#
# Special rules for this architecture.  Note that this is actually
# included from the main Makefile, and that pathnames should be
# accordingly.
#

# Enable this to compile with register parameters; only safe for
# gcc >= 3

ifeq ($(CONFIG_REGPARM),y)
REGPARM_OPT := -mregparm=3 -D_REGPARM=3
endif

gcc_align_option  := $(call cc-option, \
		-falign-functions=0 -falign-jumps=0 -falign-loops=0, \
		-malign-functions=0 -malign-jumps=0 -malign-loops=0)
gcc_m32_option  := $(call cc-option, -m32, )

KLIBCOPTFLAGS     += -march=i386 -Os -g -fomit-frame-pointer $(gcc_align_option)
KLIBCLDFLAGS      = -m elf_i386
KLIBCREQFLAGS	  += $(REGPARM_OPT)
KLIBCARCHREQFLAGS += $(gcc_m32_option)

KLIBCBITSIZE  = 32

# Extra linkflags when building the shared version of the library
# This address needs to be reachable using normal inter-module
# calls, and work on the memory models for this architecture
# 96 MB - normal binaries start at 128 MB
KLIBCSHAREDFLAGS	= -Ttext 0x06000200