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# Copyright (C) 1991, 92, 93, 94, 95, 96 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; \
echo NULL) \
| 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-common)
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 := $(generated) make_errlist errlist.c
endif
endif # stdio-common
ifeq (,$(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-\(/\*[^*]*\)$$-\1\*/-' \
> $@-tmp
mv $@-tmp $@
before-compile := $(before-compile) $(common-objpfx)syscall.h
common-generated := $(common-generated) syscall.h
endif
endif
ifndef inhibit-unix-syscalls
# Sysdep dirs unix/... can contain a file syscalls.list,
# which specifies objects to be compiled as simple Unix system calls.
-include $(objpfx)sysd-syscalls
omit-deps += $(unix-syscalls)
ifeq (misc,$(subdir))
sysdep_routines += $(unix-extra-syscalls)
endif
export sysdirs
export asm_CPP := $(COMPILE.S) -E -x assembler-with-cpp
$(objpfx)sysd-syscalls: $(..)sysdeps/unix/make-syscalls.sh \
$(wildcard $(+sysdep_dirs:%=%/syscalls.list))
for dir in $$sysdirs; do \
test -f $(..)sysdeps/$$dir/syscalls.list && \
{ $(SHELL) $(dir $<)$(notdir $<) \
$(..)sysdeps $$dir $(object-suffixes) || exit 1; }; \
test $$dir = unix && break; \
done > $@T
mv -f $@T $@
endif
|
