makefile

这是完整的gcc源代码

# Makefile for GNU C compiler.
#   Copyright (C) 1987, 1988 Free Software Foundation, Inc.

#This file is part of GNU CC.

#GNU CC is free software; you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation; either version 1, or (at your option)
#any later version.

#GNU CC is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with GNU CC; see the file COPYING.  If not, write to
#the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.


# Variables that exist for you to override.
# See below for how to change them for certain systems.

CFLAGS = -g $(XCFLAGS)
CC = cc
BISON = bison
BISONFLAGS = -v
# This should be the version of ar to use with output from GCC.
AR = ar
SHELL = /bin/sh
# on sysV, define this as cp.
INSTALL = install -c
# Directory not specified here so that, if a GNU ranlib
# is earlier in the path, it will be used.
# That is likely to be true on systems that have the GNU ar
# installed earlier in the path.
RANLIB = ranlib

# Compiler to use for compiling gnulib.
# OLDCC should not be the GNU C compiler.
OLDCC = cc

# CFLAGS for use with OLDCC, for compiling gnulib.
# NOTE: -O does not work on some Unix systems!
# On them, you must take it out.
CCLIBFLAGS=-O

# This should be the version of ar to use with output from $(OLDCC).
OLDAR = ar

# CFLAGS for use with OLDCC, for compiling hard-params.
HARD_PARAMS_FLAGS=

# Directory where sources are, from where we are.
srcdir = .
# Directory in which to put the executable for the command `gcc'
bindir = $(prefix)/usr/local/bin
# Directory in which to put the subprograms used by the compiler.
libdir = $(prefix)/usr/local/lib
# Directory in which to put man pages.
mandir = $(prefix)/usr/local/man/man1
# Number to put in man-page filename.
manext = 1

# Additional system libraries to link with.
CLIB=

# Change this to a null string if obstacks are installed in the
# system library.
OBSTACK=obstack.o

# Directory to link to, when using the target `maketest'.
DIR = ../gcc

# End of variables for you to override.


# Variables you should change for certain systems.

# These are what you would need on HPUX:
# CFLAGS = -Wc,-Ns2000 -Wc,-Ne700 -Wc,-Np300
# If you are using the GNU assembler and linker on HPUX,
# add -I../hp-include to CFLAGS.
# -g is desirable in CFLAGS, but a compiler bug in HPUX version 5
# bites whenever tree.def, rtl.def or machmode.def is included
# (ie., on every source file).
# If you have a floating point accelerator, you might want -lsetjmp as well.
# CCLIBFLAGS = -Wc,-Ns2000 -Wc,-Ne700 -O
# HARD_PARAMS_FLAGS = -Wc,-Ns2000 -Wc,-Ne700
# INSTALL = cp
# For CCLIBFLAGS you might want to specify the switch that
# forces only 68000 instructions to be used.
# If using the GNU assembler and linker, set AR to the GNU ar program,
# wherever that is.
# To get a working alloca, you may need to get alloca.s from Emacs
# and assemble it into alloca.o rather than using alloca.c.

# On the Sequent, you may need to set CCLIBFLAG to empty.

# On the 3b1, this line may help you compile gnulib
# if you already have a prior version of gcc installed.
# CCLIBFLAGS = -B/usr/local/lib/gcc- -tp -Wp,-traditional

# On SysV from SCO, uncomment these lines as well as those for SysV in general.
# You might also want to remove limits.h from the definition of USER_H,
# since the one that comes with the system is good for POSIX.
# RANLIB = :
# CC = rcc -Di386 -DM_UNIX -DM_I386 -DM_SYSV -DM_COFF
# OLDCC = rcc -Di386 -DM_UNIX -DM_I386 -DM_SYSV -DM_COFF

# On a 386 running an ISC system, uncomment the following lines.
# You also need to add -D_POSIX_SOURCE to CFLAGS
# when compiling with GCC.
# INSTALL = cp
# CLIB = -lPW -lcposix

# On a 386 running system V.4, uncomment the following lines.
# INSTALL = cp
# HARD_PARAMS_FLAGS = -DNO_LONG_DOUBLE

# If you are making gcc for the first time, and if you are compiling it with
# a non-gcc compiler, and if your system doesn't have a working alloca() in any
# of the standard libraries (as is true for HP/UX or Genix),
# then un-comment the following line when compiling with the system's cc:
# ALLOCA = alloca.o
# But don't do that if compiling using GCC.

# If your system has a working alloca in /lib/libPW.a,
# un-comment the following line.  Note that -lPW doesn't work on HPUX or IRIX.
# CLIB= -lPW

# On SysV R4, when compiling with PCC, you can get alloca as follows:
# CLIB = -lc /usr/ucblib/libucb.a
# -lc is needed because if libucb.a were searched before libc.a,
# you would get an incompatible stdio package that won't work.

# On the NCR Tower 32 running SVR3, says [e-mail] :
# Do *not* enable optimization in CFLAGS when using the native cc, because:
# a) The optimizer seems to loop when invoked with -O2.
# b) The -O1 level does stack/frame pointer optimizations that make the
#    assembler alloca in libPW.a fail, and the C alloca eats *lots* of memory.
# c) gcc will eventually be recompiled with itself, so all this doesn't matter.
# CFLAGS = -g -O0
# HARD_PARAMS_FLAGS = -O0
# CCLIBFLAGS = -O2
# CLIB = -lmalloc -lPW

# On a pyramid, you need to uncomment the following line:
# CLIB = -lc /usr/.attlib/libPW.a

# If your system's malloc() routine fails for any reason (as it does on
# certain versions of Genix), try getting the files
# malloc.c and getpagesize.h from GNU Emacs and un-comment the following line:
# MALLOC = malloc.o

# To build gcc for Apollo 68K machines you must be running at least SR10.2
# with the 6.7 version of the C compiler. Use 'apollo68' as the argument to
# config.gcc, then go into a bsd4.3 environment and use this:
# CFLAGS = -g -O -Acpu,3000 -Arun,bsd4.3 -Asys,any -Anansi $(XCFLAGS)
# CCLIBFLAGS = -O -Acpu,3000 -Arun,bsd4.3 -Asys,any -Anansi
# HARD_PARAMS_FLAGS= -Anansi
# (Says [e-mail].)


# Dependency on obstack, alloca, malloc or whatever library facilities
# are not installed in the system libraries.
LIBDEPS= $(OBSTACK) $(ALLOCA) $(MALLOC)

# How to link with both our special library facilities
# and the system's installed libraries.
LIBS = $(OBSTACK) $(ALLOCA) $(MALLOC) $(CLIB)

# Specify the directories to be searched for header files.
# Both . and srcdir are used, in that order,
# so that tm.h and config.h will be found in the compilation
# subdirectory rather than in the source directory.
INCLUDES = -I. -I$(srcdir) -I$(srcdir)/config
SUBDIR_INCLUDES = -I.. -I../$(srcdir) -I../$(srcdir)/config

# Always use -I$(srcdir)/config when compiling.
.c.o:
	$(CC) -c $(CFLAGS) $(CPPFLAGS) $(INCLUDES) $<

# Language-specific object files for C.
C_OBJS = c-parse.tab.o c-decl.o c-typeck.o c-convert.o

# Language-specific object files for C++.
# (These are not yet released.)
CPLUS_OBJS = cplus-parse.o cplus-decl.o cplus-typeck.o \
   cplus-cvt.o cplus-search.o cplus-lex.o \
   cplus-class.o cplus-init.o cplus-method.o

# Language-independent object files.
OBJS = toplev.o version.o tree.o print-tree.o stor-layout.o fold-const.o \
 rtl.o rtlanal.o expr.o stmt.o expmed.o explow.o optabs.o varasm.o \
 symout.o dbxout.o sdbout.o emit-rtl.o insn-emit.o \
 integrate.o jump.o cse.o loop.o flow.o stupid.o combine.o \
 regclass.o local-alloc.o global-alloc.o reload.o reload1.o caller-save.o \
 insn-peep.o final.o recog.o insn-recog.o insn-extract.o insn-output.o

# Files to be copied away after each stage in building.
STAGE_GCC=gcc
STAGESTUFF = *.o insn-flags.h insn-config.h insn-codes.h \
 insn-output.c insn-recog.c insn-emit.c insn-extract.c insn-peep.c \
 stamp-flags stamp-config stamp-codes \
 stamp-output stamp-recog stamp-emit stamp-extract stamp-peep \
 genemit genoutput genrecog genextract genflags gencodes genconfig genpeep \
 cc1 cpp cccp # cc1plus

# Members of gnulib.
LIBFUNCS = _eprintf _builtin_new _builtin_New _builtin_del _bb \
   _umulsi3 _mulsi3 _udivsi3 _divsi3 _umodsi3 _modsi3 \
   _lshrsi3 _lshlsi3 _ashrsi3 _ashlsi3 \
   _divdf3 _muldf3 _negdf2 _adddf3 _subdf3 _cmpdf2 \
   _fixunsdfsi _fixdfsi _floatsidf _truncdfsf2 _extendsfdf2 \
   _addsf3 _negsf2 _subsf3 _cmpsf2 _mulsf3 _divsf3

# Library members defined in gnulib2.c.
LIB2FUNCS = _adddi3 _subdi3 _muldi3 _divdi3 _moddi3 _udivdi3 _umoddi3 _negdi2 \
    _anddi3 _iordi3 _xordi3 _lshrdi3 _lshldi3 _ashldi3 _ashrdi3 _one_cmpldi2  \
    _bdiv _cmpdi2 _ucmpdi2 _fixunsdfdi _fixdfdi _floatdidf _varargs

# Header files that are made available to programs compiled with gcc.
USER_H = stddef.h assert.h va-i860.h va-mips.h va-pyr.h va-sparc.h \
    va-spur.h limits.h proto.h

# The files that "belong" in CONFIG_H are deliberately omitted
# because having them there would not be useful in actual practice.
# All they would do is cause complete recompilation every time
# one of the machine description files is edited.
# That may or may not be what one wants to do.
# If it is, rm *.o is an easy way to do it.
# CONFIG_H = config.h tm.h
CONFIG_H =
RTL_H = rtl.h rtl.def machmode.def
TREE_H = tree.h real.h tree.def machmode.def
CPLUS_TREE_H = $(TREE_H) cplus-tree.h c-tree.h

# Note that dependencies on obstack.h are not written
# because that file is not part of GCC.
# Dependencies on gvarargs.h are not written
# because all that file does, when not compiling with GCC,
# is include the system varargs.h.

all: config.status gnulib gcc cc1 cpp float.h gnulib2 # cc1plus

# Use this instead of `all' if you need to convert the libraries
# before you can use the compiler.
# Don't forget to do `make gnulib2' before installation.
all-libconvert: config.status gnulib gcc cc1 cpp float.h # cc1plus

lang-c: config.status gnulib gcc cc1 cpp gnulib2
# lang-cplus: config.status gnulib gcc cc1plus cpp gnulib2

config.status:
	@echo You must configure gcc.  Look at the INSTALL file for details.
	@false

doc: $(srcdir)/cpp.info $(srcdir)/gplus.info $(srcdir)/gcc.info

compilations: ${OBJS}

gcc: gcc.o version.o $(LIBDEPS)
	$(CC) $(CFLAGS) $(LDFLAGS) -o gccnew gcc.o version.o $(LIBS)
# Go via `gccnew' to avoid `file busy' if $(CC) is `gcc'.
	mv gccnew gcc

cc1: $(C_OBJS) $(OBJS) $(LIBDEPS)
	$(CC) $(CFLAGS) $(LDFLAGS) -o cc1 $(C_OBJS) $(OBJS) $(LIBS)

cc1plus: $(CPLUS_OBJS) $(OBJS) $(LIBDEPS)
	$(CC) $(CFLAGS) $(LDFLAGS) -o cc1plus $(CPLUS_OBJS) $(OBJS) $(LIBS)

#Library of arithmetic subroutines
# Don't compile this with gcc!
# (That would cause most arithmetic functions to call themselves.)
gnulib: gnulib.c $(CONFIG_H) config.status
	-rm -f stamp-gnulib2
	rm -f tmpgnulib gnulib; \
	for name in $(LIBFUNCS); \
	do \
	  echo $${name}; \
	  rm -f $${name}.c; \
	  cp $(srcdir)/gnulib.c $${name}.c; \
	  $(OLDCC) $(CCLIBFLAGS) $(INCLUDES) -c -DL$${name} $${name}.c; \
	  $(OLDAR) qc tmpgnulib $${name}.o; \
	  rm -f $${name}.[co]; \
	done
	-if [ -f /usr/bin/ranlib -o -f /bin/ranlib ] ;then $(RANLIB) tmpgnulib; else true; fi
# Actually build it in tmpgnulib above, then rename now,
# so that gnulib itself remains nonexistent if compilation is aborted.
	mv tmpgnulib gnulib
# On HPUX, if you are working with the GNU assembler and linker,
# the previous two command lines must be replaced with the following line.
# No change is needed here if you are using the HPUX assembler and linker.
#	../hp-bin/hpxt tmpgnulib gnulib

gnulib2: stamp-gnulib2;
stamp-gnulib2: gnulib2.c gnulib cc1 gcc cpp $(CONFIG_H)
	for name in $(LIB2FUNCS); \
	do \
	  echo $${name}; \
	  ./gcc -B./ -fstrength-reduce -O $(INCLUDES) $(GNULIB2_CFLAGS) -c -DL$${name} $(srcdir)/gnulib2.c -o $${name}.o; \
	  $(AR) rc gnulib $${name}.o; \
	  rm -f $${name}.o; \
	done
	-if [ -f /usr/bin/ranlib -o -f /bin/ranlib ] ; then $(RANLIB) gnulib; else true; fi
# On HPUX, if you are working with the GNU assembler and linker,
# the previous line must be commented out.
# No change is needed here if you are using the HPUX assembler and linker.
	touch stamp-gnulib2

float.h:
# Originally, we used `make' rather than $(MAKE), to avoid propagating
# a CC=gcc command option.  However, since hard-params is now made
# with $(OLDCC) explicitly, this is no longer important.
# However, $(MAKE) fails on some systems where it isn't defined.
# `make' has the disadvantage of sometimes running the system's make,
# instead of GNU make.  And the system's make might not support VPATH.
# However, the compilation of hard-params should not need to use VPATH,
# due to the explicit use of `$(srcdir)'.
	make hard-params \
		HARD_PARAMS_FLAGS="$(HARD_PARAMS_FLAGS)" \
		CPPFLAGS="$(CPPFLAGS)" \
		LDFLAGS="$(LDFLAGS)"
	-./hard-params -f > float.h

# Compile hard-params with standard cc.  It avoids some headaches.
hard-params: hard-params.o
	$(OLDCC) $(HARD_PARAMS_FLAGS) $(LDFLAGS) hard-params.o -o $@
hard-params.o: $(srcdir)/hard-params.c
	-cp $(srcdir)/hard-params.c . > /dev/null 2>&1
	$(OLDCC) $(HARD_PARAMS_FLAGS) $(CPPFLAGS) -DNO_SC -c hard-params.c

# C language specific files.

c-parse.tab.o : $(srcdir)/c-parse.tab.c $(CONFIG_H) $(TREE_H) c-parse.h c-tree.h input.h
	$(CC) $(CFLAGS) $(CPPFLAGS) $(INCLUDES) -c $(srcdir)/c-parse.tab.c
$(srcdir)/c-parse.tab.c : $(srcdir)/c-parse.y
	$(BISON) $(BISONFLAGS) $(srcdir)/c-parse.y -o $@

c-decl.o : c-decl.c $(CONFIG_H) $(TREE_H) c-tree.h c-parse.h flags.h
c-typeck.o : c-typeck.c $(CONFIG_H) $(TREE_H) c-tree.h flags.h
c-convert.o : c-convert.c $(CONFIG_H) $(TREE_H)

# C++ language specific files.

cplus-parse.o : $(srcdir)/cplus-parse.c $(CONFIG_H) $(CPLUS_TREE_H) flags.h
	$(CC) -c $(CFLAGS) $(INCLUDES) \
  -DPARSE_OUTPUT=\"$(PWD)/cplus-parse.output\" \
  `echo $(srcdir)/cplus-parse.c | sed 's,^\./,,'`

$(srcdir)/cplus-parse.h $(srcdir)/cplus-parse.c : $(srcdir)/cplus-parse.y
	@echo expect 49 shift/reduce conflicts and 4 reduce/reduce conflicts
	$(BISON) $(BISONFLAGS) -d -o $(srcdir)/cplus-parse.c $(srcdir)/cplus-parse.y

cplus-lex.o : cplus-lex.c $(CONFIG_H) $(CPLUS_TREE_H) $(srcdir)/cplus-parse.h