initial import

1 files changed, 267 insertions, 0 deletions

diff --git a/sysdeps/unix/Makefile b/sysdeps/unix/Makefile
new file mode 100644
index 0000000000..6bc0f5a1d0
--- /dev/null
+++ b/sysdeps/unix/Makefile
@@ -0,0 +1,267 @@
+# Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+
+# The GNU C Library 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
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+# The unix-specific configure fragment writes `unix-generated' in config.make.
+config-generated := $(config-generated) $(unix-generated)
+
+ifeq (,$(filter-out $(sysdep_dir)/stub/ $(common-objpfx),\
+	$(dir $(firstword $(wildcard $(+sysdep_dirs:%=%/local_lim.h))))))
+
+ifneq (,$(wildcard $(sysincludedir)/sys/param.h))
+local_lim-CFLAGS := $(local_lim-CFLAGS) -DHAVE_SYS_PARAM_H
+endif
+ifneq (,$(wildcard $(sysincludedir)/sys/limits.h))
+local_lim-CFLAGS := $(local_lim-CFLAGS) -DHAVE_SYS_LIMITS_H
+endif
+ifneq (,$(wildcard $(sysincludedir)/limits.h))
+local_lim-CFLAGS := $(local_lim-CFLAGS) -DHAVE_LIMITS_H
+endif
+
+$(common-objpfx)local_lim.h: $(common-objpfx)mk-local_lim
+	if $(dir $<)$(notdir $<) > $@-t; then mv $@-t $@; else XXX; fi
+$(common-objpfx)mk-local_lim: $(sysdep_dir)/unix/mk-local_lim.c
+	cwd=`pwd`; cd $(@D); \
+	$(BUILD_CC) $(BUILD_CFLAGS) $(local_lim-CFLAGS) $$cwd/$< -o $(@F)
+
+before-compile := $(before-compile) $(common-objpfx)local_lim.h
+common-generated := $(common-generated) local_lim.h mk-local_lim
+
+endif
+
+ifeq (,$(filter-out $(sysdep_dir)/stub/ $(common-objpfx),\
+	$(patsubst %/sys/param.h,%/,\
+		   $(firstword $(wildcard $(+sysdep_dirs:%=%/sys/param.h))))))
+
+before-compile := $(before-compile) $(common-objpfx)sys/param.h
+
+$(common-objpfx)sys/param.h: $(sysincludedir)/sys/param.h
+	-mkdir $(@D:%/=%)
+	(echo '#ifndef _GNU_SYS_PARAM_H';	\
+	 echo '#define _GNU_SYS_PARAM_H 1';	\
+	 echo '#include <endian.h>';		\
+	 awk < $<			\
+	   '/^#define[ 	]*NULL/ { print "#ifndef NULL";	\
+				  print $$0;		\
+				  print "#endif";	\
+				  was_null = 1 }	\
+	    { if (!was_null) print $$0;			\
+	      was_null = 0 }';		\
+	 echo '#ifndef MAXHOSTNAMELEN'; \
+	 echo '#define MAXHOSTNAMELEN 64 /* XXX */'; \
+	 echo '#endif /* No MAXHOSTNAMELEN.  */'; \
+	 echo '#endif	/* sys/param.h */') > $@-tmp
+	mv $@-tmp $@
+
+$(common-objpfx)param.h.c: $(sysincludedir)/sys/param.h
+	rm -f $@
+	cp $< $@
+$(common-objpfx)param.h.dep: $(common-objpfx)param.h.c \
+			     $(sysdep_dir)/unix/Makefile
+	$(+mkdep) -I$(sysincludedir) $<		\
+	| sed > $@				\
+	      -e 's@^.*:@@'			\
+	      -e 's@$<@@g'			\
+	      -e 's@$(sysincludedir)/*@@g'	\
+	      -e 's@\\$$@@'			\
+	      -e 's@^@sys/param.h-includes := $$(sys/param.h-includes) @'
+
+# Get the generated definition of sys/param.h-includes.
+ifndef no_deps
+include $(common-objpfx)param.h.dep
+endif
+
+# Don't preempt our own headers. 
+sys/param.h-includes := \
+  $(filter-out $(patsubst $(..)%,%,\
+			  $(wildcard $(addprefix $(..),\
+				     $(sys/param.h-includes)))),\
+	       $(sys/param.h-includes))
+
+
+.PHONY: sys/param.h-includes
+sys/param.h-includes: $(addprefix $(common-objpfx),$(sys/param.h-includes))
+
+ifdef sys/param.h-includes
+# Copy the system files to $(common-objdir).
+$(addprefix $(common-objpfx),$(sys/param.h-includes)): $(common-objpfx)%: \
+						       $(sysincludedir)/%
+	-mkdir $(@D:%/=%)
+# Some of these files sometimes contain conflicting declarations for htons,
+# ntohs, etc.  They also often contain definitions of *_ENDIAN and
+# BYTE_ORDER, which we define ourselves in <endian.h>.
+	sed -e '/[ 	]*[hn]to[nh][sl][	 (]*/d' \
+	    -e '/^#define[ 	]*[A-Z]*_ENDIAN/d' \
+	    -e '/^#define[ 	]*BYTE_ORDER/d' \
+	    $< > $@-t
+	mv $@-t $@
+endif
+
+common-generated := $(common-generated) \
+		    sys/param.h $(sys/param.h-includes) param.h.c param.h.dep
+
+
+ifeq ($(subdir),misc)
+
+# Install system headers the system sys/param.h uses.
+
+sysdep_headers := $(sysdep_headers) $(sys/param.h-includes)
+
+endif # misc
+
+endif # No sysdep sys/param.h.
+
+ifeq (,$(filter-out $(sysdep_dir)/stub/ $(common-objpfx),\
+	$(dir $(firstword $(wildcard $(+sysdep_dirs:%=%/errnos.h))))))
+
+# These need to exist before any compiling is done,
+# so cpp doesn't instead find the stub versions.
+before-compile := $(before-compile) $(common-objpfx)errnos.h 
+
+$(common-objpfx)errnos.h: $(common-objpfx)make-errnos
+	$(dir $<)$(notdir $<) > $@-tmp
+	mv $@-tmp $@
+
+$(common-objpfx)make-errnos: $(common-objpfx)make-errnos.c
+	$(common-objdir-compile)
+
+$(common-objpfx)make-errnos.c: $(sysdep_dir)/unix/errnos-tmpl.c \
+			$(sysdep_dir)/unix/errnos.awk $(common-objpfx)errnos
+	awk -f $(word 2,$^) errnos="`tr '\012' ' ' < $(word 3,$^)`" $< > $@T
+	mv $@T $@
+
+$(common-objpfx)errnos: $(wildcard $(sysincludedir)/errno.h	\
+				   $(sysincludedir)/sys/errno.h)
+	cat $^ | sed -n 's/^#define[ 	]*\(E[A-Z0-9][A-Z0-9]*\)[ 	].*$$/\1/p' > $@-tmp
+	mv $@-tmp $@
+
+common-generated := $(common-generated) \
+		    errnos.h errnos make-errnos make-errnos.c
+endif
+
+ifeq (,$(filter-out $(sysdep_dir)/stub/ $(common-objpfx),\
+	$(dir $(firstword $(wildcard $(+sysdep_dirs:%=%/ioctls.h))))))
+
+before-compile := $(before-compile) $(common-objpfx)ioctls.h
+
+$(common-objpfx)ioctls.h: $(common-objpfx)make-ioctls
+	$(dir $<)$(notdir $<) > $@-tmp
+	mv $@-tmp $@
+
+ioctl-includes := sys/termios.h net/nit.h
+ioctl-includes := $(wildcard $(addprefix $(sysincludedir)/,$(ioctl-includes)))
+make-ioctls-CFLAGS := $(subst /,_,$(subst .,_,\
+			$(patsubst $(sysincludedir)/%,-DHAVE_%,\
+				   $(ioctl-includes))))
+
+$(common-objpfx)make-ioctls: $(common-objpfx)make-ioctls.c
+	cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) $(make-ioctls-CFLAGS) \
+			$(<:$(common-objpfx)%=%) -o $(@F)
+
+$(common-objpfx)make-ioctls.c: $(sysdep_dir)/unix/ioctls-tmpl.c \
+			       $(sysdep_dir)/unix/ioctls.awk \
+			       $(common-objpfx)ioctls
+	awk -f $(word 2,$^) requests="`cat $(word 3,$^)`" $< > $@T
+	mv $@T $@
+
+
+termbits.h := $(firstword $(wildcard $(+sysdep_dirs:%=%/termbits.h)))
+ifeq ($(termbits.h),$(sysdep_dir)/generic/termbits.h)
+termbits.h := # Ignore the generic version.
+endif
+
+# If there is a system-specific <termbits.h> file, we want to omit all the
+# symbols it defines from ioctls.  Otherwise, both ioctls.h and termbits.h
+# would define them.  The system-specific <termbits.h> file presumably
+# defines them with the same values as we find from the system's headers.
+# We also want to omit from ioctls the symbols defined in our own
+# <sys/ttydefaults.h>, to avoid multiple definition conflicts.  We use
+# snarf-ioctls on these files to find what symbols we want to omit.  fgrep
+# -xv gives all lines which do not match in their entirety; without -x,
+# CSTOP's presence elided TIOCSTOP.
+
+$(common-objpfx)ioctls: $(sysdep_dir)/unix/snarf-ioctls \
+			$(sysincludedir)/sys/ioctl.h $(ioctl-includes)
+	$(dir $<)$(notdir $<) $(filter-out $<,$^) \
+	| fgrep -xv "`$(dir $<)$(notdir $<) $(termbits.h) \
+					    $(..)termios/sys/ttydefaults.h \
+		     | sort | uniq`" \
+	| sort | uniq | tr '\012' ' ' > $@-tmp
+	mv $@-tmp $@
+
+common-generated := $(common-generated) \
+		    ioctls.h ioctls make-ioctls make-ioctls.c
+endif
+
+ifeq ($(subdir),stdio)
+ifeq (,$(filter-out $(sysdep_dir)/stub/ $(common-objpfx),\
+	$(dir $(firstword $(wildcard $(+sysdep_dirs:%=%/errlist.c))))))
+
+before-compile: $(objpfx)errlist.c
+$(objpfx)errlist.c: $(objpfx)make_errlist
+	@rm -f $@
+	$(dir $<)$(notdir $<) > $@-tmp
+	mv $@-tmp $@
+
+$(objpfx)make_errlist: $(sysdep_dir)/unix/make_errlist.c
+	$(native-compile)
+
+generated := $(generated) make_errlist errlist.c
+
+endif
+endif # stdio
+
+ifeq (,$(filter-out $(sysdep_dir)/stub/ $(common-objpfx),\
+	$(dir $(firstword $(wildcard $(+sysdep_dirs:%=%/syscall.h))))))
+
+# The syscall code assumes a file <syscall.h> that defines macros
+# `SYS_call' for syscall `call'.  Variations on this I have seen include:
+# it's in <sys/syscall.h>;
+# it's in <sys.s>;
+# it defines `CALL' instead of `SYS_call'.
+# Irix has a <syscall.h> which is not what we want, so check for <sys.s> first.
+
+# Find a file that might have these.  NOTE: This list of possibilities is
+# repeated in sysdeps/unix/configure and the two should be kept in sync.
+syscall.h := $(firstword $(wildcard $(addprefix $(sysincludedir)/, \
+						sys.s sys/sys.s \
+						sys.S sys/sys.S \
+						syscall.h sys/syscall.h \
+						)))
+ifdef syscall.h
+
+# Transmogrify any of several formats of the file into the one we want.
+$(common-objpfx)syscall.h: $(syscall.h)
+	tr '[A-Z]' '[a-z]' < $< | \
+	sed -e 's/[ 	]sys_/ /' \
+	    -e 's/^#define[ 	]*\([a-z0-9_]*\)[ 	]*/#define SYS_\1 /' \
+	    -e 's/[ 	]sys_/ SYS_/' \
+	    -e 's/SYS_syscall_basenum/syscall_basenum/g' \
+	    -e 's/SYS_kerncall_basenum/kerncall_basenum/g' \
+	    -e 's/SYS_sysvoffset/sysvoffset/g' \
+	    -e '/^#/!d' \
+	    -e '/^#ident/d' \
+	    -e 's-\(/\*[^*]*\)$$-\1\*/-' \
+	> $@-tmp
+	mv $@-tmp $@
+
+before-compile := $(before-compile) $(common-objpfx)syscall.h
+common-generated := $(common-generated) syscall.h
+
+endif
+
+endif