diff options
| -rw-r--r-- | c++tools/Makefile.in | 125 | ||||
| -rw-r--r-- | c++tools/config.h.in | 43 | ||||
| -rwxr-xr-x | c++tools/configure | 4840 | ||||
| -rw-r--r-- | c++tools/configure.ac | 210 | ||||
| -rw-r--r-- | c++tools/resolver.cc | 272 | ||||
| -rw-r--r-- | c++tools/resolver.h | 105 | ||||
| -rw-r--r-- | c++tools/server.cc | 976 |
7 files changed, 6571 insertions, 0 deletions
diff --git a/c++tools/Makefile.in b/c++tools/Makefile.in new file mode 100644 index 00000000000..49b7fae1526 --- /dev/null +++ b/c++tools/Makefile.in @@ -0,0 +1,125 @@ +# Makefile for c++tools +# Copyright 2020 Free Software Foundation, Inc. +# +# This file 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 3 of the License, or +# (at your option) any later version. +# +# This program 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 this program; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +srcdir := @srcdir@ +prefix := @prefix@ +bindir := @bindir@ +libexecdir := @libexecdir@ +target_noncanonical := @target_noncanonical@ +version := $(shell cat $(srcdir)/../gcc/BASE-VER) +libexecsubdir := $(libexecdir)/gcc/$(target_noncanonical)/$(version) +INSTALL := @INSTALL@ +AUTOCONF := @AUTOCONF@ +AUTOHEADER := @AUTOHEADER@ +CXX := @CXX@ +CXXFLAGS := @CXXFLAGS@ +CXXOPTS := $(CXXFLAGS) -fno-exceptions -fno-rtti +EXEEXT := @EXEEXT@ +LIBIBERTY := ../libiberty/libiberty.a +VERSION.O := ../gcc/version.o + +all:: + +mostlyclean:: + rm -f $(MAPPER.O) + +clean:: + rm -f c++-mapper-server$(exeext) + +distclean:: + rm -f config.log config.status config.h + +maintainer-clean:: + +install:: + +check: +installcheck: +dvi: +pdf: +html: +info: +install-info: +install-pdf: +install-man: +install-html: + +vpath %.cc $(srcdir) +vpath %.in $(srcdir) +.SUFFIXES: +.SUFFIXES: .cc .o + +# Per-source & per-directory compile flags (warning: recursive) +SRC_CXXFLAGS = $(CXXFLAGS$(patsubst $(srcdir)%,%,$1)) \ + $(if $(filter-out $(srcdir)/,$1),\ + $(call $0,$(dir $(patsubst %/,%,$1)))) + +%.o: %.cc + $(CXX) $(strip $(CXXOPTS) $(call SRC_CXXFLAGS,$<) $(CXXINC)) \ + -MMD -MP -MF ${@:.o=.d} -c -o $@ $< + +ifeq (@CXX_AUX_TOOLS@,yes) + +all::g++-mapper-server$(exeext) + +MAPPER.O := server.o resolver.o +CODYLIB = ../libcody/libcody.a +CXXINC += -I$(srcdir)/../libcody -I$(srcdir)/../include -I$(srcdir)/../gcc -I. +g++-mapper-server$(exeext): $(MAPPER.O) $(CODYLIB) + +$(CXX) $(LDFLAGS) -o $@ $^ $(VERSION.O) $(LIBIBERTY) + +# copy to gcc dir so tests there can run +all::../gcc/g++-mapper-server$(exeext) + +../gcc/g++-mapper-server$(exeext): g++-mapper-server$(exeext) + $(INSTALL) -p $< $@ + +install:: + $(INSTALL) -p g++-mapper-server$(exeext) $(DESTDIR)$(libexecsubdir) + +endif + +ifneq ($(MAINTAINER),) +override MAINTAINER += $1 +endif +ifeq (@MAINTAINER@,yes) +MAINTAINER = $2 +else +MAINTAINER = \# --enable-maintainer-mode to rebuild $1, or make MAINTAINER=touch +endif + +all:: Makefile + +Makefile: $(srcdir)/Makefile.in config.status + $(SHELL) ./config.status Makefile + +$(srcdir)/configure: $(srcdir)/configure.ac + $(call MAINTAINER,$@,cd $(@D) && $(AUTOCONF) -W all,error) + +$(srcdir)/config.h.in: $(srcdir)/configure.ac + $(call MAINTAINER,$@,cd $(@D) && $(AUTOHEADER) -f -W all,error) + +config.h: config.status config.h.in + ./$< --header=$@ + touch $@ + +config.status: $(srcdir)/configure $(srcdir)/config.h.in + if test -x $@; then ./$@ -recheck; else $< @configure_args@; fi + +.PHONY: all check clean distclean maintainer-clean + +-include $(MAPPER.O:.o=.d) diff --git a/c++tools/config.h.in b/c++tools/config.h.in new file mode 100644 index 00000000000..747aaf40b12 --- /dev/null +++ b/c++tools/config.h.in @@ -0,0 +1,43 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define if accept4 provided. */ +#undef HAVE_ACCEPT4 + +/* Define if AF_INET6 supported. */ +#undef HAVE_AF_INET6 + +/* Define if AF_UNIX supported. */ +#undef HAVE_AF_UNIX + +/* Define if epoll_create, epoll_ctl, epoll_pwait provided. */ +#undef HAVE_EPOLL + +/* Define if inet_ntop provided. */ +#undef HAVE_INET_NTOP + +/* Define if pselect provided. */ +#undef HAVE_PSELECT + +/* Define if select provided. */ +#undef HAVE_SELECT + +/* Define if O_CLOEXEC supported by fcntl. */ +#undef HOST_HAS_O_CLOEXEC + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION diff --git a/c++tools/configure b/c++tools/configure new file mode 100755 index 00000000000..82975120393 --- /dev/null +++ b/c++tools/configure @@ -0,0 +1,4840 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.69. +# +# +# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org about your system, +$0: including any error possibly output before this +$0: message. Then install a modern shell, or manually run +$0: the script under such a shell if you do have one." + fi + exit 1 +fi +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . "./$as_me.lineno" + # Exit status is that of the last command. + exit +} + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + +if mkdir -p . 2>/dev/null; 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For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest conftest$ac_cv_exeext +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5 +$as_echo "$ac_cv_exeext" >&6; } + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdio.h> +int +main () +{ +FILE *f = fopen ("conftest.out", "w"); + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +ac_clean_files="$ac_clean_files conftest.out" +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5 +$as_echo_n "checking whether we are cross compiling... " >&6; } +if test "$cross_compiling" != yes; then + { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if { ac_try='./conftest$ac_cv_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run C++ compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details" "$LINENO" 5; } + fi + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 +$as_echo "$cross_compiling" >&6; } + +rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out +ac_clean_files=$ac_clean_files_save +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 +$as_echo_n "checking for suffix of object files... " >&6; } +if ${ac_cv_objext+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; then : + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of object files: cannot compile +See \`config.log' for more details" "$LINENO" 5; } +fi +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5 +$as_echo "$ac_cv_objext" >&6; } +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5 +$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; } +if ${ac_cv_cxx_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_cxx_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5 +$as_echo "$ac_cv_cxx_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GXX=yes +else + GXX= +fi +ac_test_CXXFLAGS=${CXXFLAGS+set} +ac_save_CXXFLAGS=$CXXFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5 +$as_echo_n "checking whether $CXX accepts -g... " >&6; } +if ${ac_cv_prog_cxx_g+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_save_cxx_werror_flag=$ac_cxx_werror_flag + ac_cxx_werror_flag=yes + ac_cv_prog_cxx_g=no + CXXFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_cv_prog_cxx_g=yes +else + CXXFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + +else + ac_cxx_werror_flag=$ac_save_cxx_werror_flag + CXXFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_cv_prog_cxx_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cxx_werror_flag=$ac_save_cxx_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5 +$as_echo "$ac_cv_prog_cxx_g" >&6; } +if test "$ac_test_CXXFLAGS" = set; then + CXXFLAGS=$ac_save_CXXFLAGS +elif test $ac_cv_prog_cxx_g = yes; then + if test "$GXX" = yes; then + CXXFLAGS="-g -O2" + else + CXXFLAGS="-g" + fi +else + if test "$GXX" = yes; then + CXXFLAGS="-O2" + else + CXXFLAGS= + fi +fi +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing +for ac_prog in autoconf +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AUTOCONF+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AUTOCONF"; then + ac_cv_prog_AUTOCONF="$AUTOCONF" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AUTOCONF="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AUTOCONF=$ac_cv_prog_AUTOCONF +if test -n "$AUTOCONF"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AUTOCONF" >&5 +$as_echo "$AUTOCONF" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AUTOCONF" && break +done +test -n "$AUTOCONF" || AUTOCONF="$MISSING autoconf" + +for ac_prog in autoheader +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_AUTOHEADER+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$AUTOHEADER"; then + ac_cv_prog_AUTOHEADER="$AUTOHEADER" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AUTOHEADER="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +AUTOHEADER=$ac_cv_prog_AUTOHEADER +if test -n "$AUTOHEADER"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AUTOHEADER" >&5 +$as_echo "$AUTOHEADER" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$AUTOHEADER" && break +done +test -n "$AUTOHEADER" || AUTOHEADER="$MISSING autoheader" + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build C++ tools" >&5 +$as_echo_n "checking whether to build C++ tools... " >&6; } + # Check whether --enable-c++-tools was given. +if test "${enable_c___tools+set}" = set; then : + enableval=$enable_c___tools; cxx_aux_tools=$enableval +else + cxx_aux_tools=yes +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cxx_aux_tools" >&5 +$as_echo "$cxx_aux_tools" >&6; } +CXX_AUX_TOOLS="$cxx_aux_tools" + + +# Check whether --enable-maintainer-mode was given. +if test "${enable_maintainer_mode+set}" = set; then : + enableval=$enable_maintainer_mode; +else + enable_maintainer_mode=no +fi + +case "$enable_maintainer_mode" in + ("yes") maintainer_mode=yes ;; + ("no") maintainer=no ;; + (*) as_fn_error $? "unknown maintainer mode $enable_maintainer_mode" "$LINENO" 5 ;; +esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking maintainer-mode" >&5 +$as_echo_n "checking maintainer-mode... " >&6; } +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $maintainer_mode" >&5 +$as_echo "$maintainer_mode" >&6; } +test "$maintainer_mode" = yes && MAINTAINER=yes + + +# Check if O_CLOEXEC is defined by fcntl +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5 +$as_echo_n "checking whether we are using the GNU C compiler... " >&6; } +if ${ac_cv_c_compiler_gnu+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +$as_echo "$ac_cv_c_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +$as_echo_n "checking whether $CC accepts -g... " >&6; } +if ${ac_cv_prog_cc_g+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +else + CFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +else + ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 +$as_echo "$ac_cv_prog_cc_g" >&6; } +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5 +$as_echo_n "checking for $CC option to accept ISO C89... " >&6; } +if ${ac_cv_prog_cc_c89+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdarg.h> +#include <stdio.h> +struct stat; +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for O_CLOEXEC" >&5 +$as_echo_n "checking for O_CLOEXEC... " >&6; } +if ${ac_cv_o_cloexec+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <fcntl.h> +int +main () +{ + +return open ("/dev/null", O_RDONLY | O_CLOEXEC); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_o_cloexec=yes +else + ac_cv_o_cloexec=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_o_cloexec" >&5 +$as_echo "$ac_cv_o_cloexec" >&6; } +if test $ac_cv_o_cloexec = yes; then + +$as_echo "#define HOST_HAS_O_CLOEXEC 1" >>confdefs.h + +fi + +# C++ Modules would like some networking features to provide the mapping +# server. You can still use modules without them though. +# The following network-related checks could probably do with some +# Windows and other non-linux defenses and checking. + +# Local socket connectivity wants AF_UNIX networking +# Check for AF_UNIX networking +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AF_UNIX" >&5 +$as_echo_n "checking for AF_UNIX... " >&6; } +if ${ac_cv_af_unix+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <netinet/in.h> +int +main () +{ + +sockaddr_un un; +un.sun_family = AF_UNSPEC; +int fd = socket (AF_UNIX, SOCK_STREAM, 0); +connect (fd, (sockaddr *)&un, sizeof (un)); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_af_unix=yes +else + ac_cv_af_unix=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_af_unix" >&5 +$as_echo "$ac_cv_af_unix" >&6; } +if test $ac_cv_af_unix = yes; then + +$as_echo "#define HAVE_AF_UNIX 1" >>confdefs.h + +fi + +# Remote socket connectivity wants AF_INET6 networking +# Check for AF_INET6 networking +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AF_INET6" >&5 +$as_echo_n "checking for AF_INET6... " >&6; } +if ${ac_cv_af_inet6+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netdb.h> +int +main () +{ + +sockaddr_in6 in6; +in6.sin6_family = AF_UNSPEC; +struct addrinfo *addrs = 0; +struct addrinfo hints; +hints.ai_flags = 0; +hints.ai_family = AF_INET6; +hints.ai_socktype = SOCK_STREAM; +hints.ai_protocol = 0; +hints.ai_canonname = 0; +hints.ai_addr = 0; +hints.ai_next = 0; +int e = getaddrinfo ("localhost", 0, &hints, &addrs); +const char *str = gai_strerror (e); +freeaddrinfo (addrs); +int fd = socket (AF_INET6, SOCK_STREAM, 0); +connect (fd, (sockaddr *)&in6, sizeof (in6)); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_af_inet6=yes +else + ac_cv_af_inet6=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_af_inet6" >&5 +$as_echo "$ac_cv_af_inet6" >&6; } +if test $ac_cv_af_inet6 = yes; then + +$as_echo "#define HAVE_AF_INET6 1" >>confdefs.h + +fi + +# Efficient server response wants epoll +# Check for epoll_create, epoll_ctl, epoll_pwait +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for epoll" >&5 +$as_echo_n "checking for epoll... " >&6; } +if ${ac_cv_epoll+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/epoll.h> +int +main () +{ + +int fd = epoll_create (1); +epoll_event ev; +ev.events = EPOLLIN; +ev.data.fd = 0; +epoll_ctl (fd, EPOLL_CTL_ADD, 0, &ev); +epoll_pwait (fd, 0, 0, -1, 0); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_epoll=yes +else + ac_cv_epoll=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_epoll" >&5 +$as_echo "$ac_cv_epoll" >&6; } +if test $ac_cv_epoll = yes; then + +$as_echo "#define HAVE_EPOLL 1" >>confdefs.h + +fi + +# If we can't use epoll, try pselect. +# Check for pselect +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pselect" >&5 +$as_echo_n "checking for pselect... " >&6; } +if ${ac_cv_pselect+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/select.h> +int +main () +{ + +pselect (0, 0, 0, 0, 0, 0); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_pselect=yes +else + ac_cv_pselect=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_pselect" >&5 +$as_echo "$ac_cv_pselect" >&6; } +if test $ac_cv_pselect = yes; then + +$as_echo "#define HAVE_PSELECT 1" >>confdefs.h + +fi + +# And failing that, use good old select. +# If we can't even use this, the server is serialized. +# Check for select +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for select" >&5 +$as_echo_n "checking for select... " >&6; } +if ${ac_cv_select+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/select.h> +int +main () +{ + +select (0, 0, 0, 0, 0); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_select=yes +else + ac_cv_select=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_select" >&5 +$as_echo "$ac_cv_select" >&6; } +if test $ac_cv_select = yes; then + +$as_echo "#define HAVE_SELECT 1" >>confdefs.h + +fi + +# Avoid some fnctl calls by using accept4, when available. +# Check for accept4 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for accept4" >&5 +$as_echo_n "checking for accept4... " >&6; } +if ${ac_cv_accept4+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <sys/socket.h> +int +main () +{ + +int err = accept4 (1, 0, 0, SOCK_NONBLOCK); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_accept4=yes +else + ac_cv_accept4=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_accept4" >&5 +$as_echo "$ac_cv_accept4" >&6; } +if test $ac_cv_accept4 = yes; then + +$as_echo "#define HAVE_ACCEPT4 1" >>confdefs.h + +fi + +# For better server messages, look for a way to stringize network addresses +# Check for inet_ntop +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inet_ntop" >&5 +$as_echo_n "checking for inet_ntop... " >&6; } +if ${ac_cv_inet_ntop+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#include <arpa/inet.h> +#include <netinet/in.h> +int +main () +{ + +sockaddr_in6 in6; +char buf[INET6_ADDRSTRLEN]; +const char *str = inet_ntop (AF_INET6, &in6, buf, sizeof (buf)); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_inet_ntop=yes +else + ac_cv_inet_ntop=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_inet_ntop" >&5 +$as_echo "$ac_cv_inet_ntop" >&6; } +if test $ac_cv_inet_ntop = yes; then + +$as_echo "#define HAVE_INET_NTOP 1" >>confdefs.h + +fi + +ac_config_headers="$ac_config_headers config.h" + +ac_config_files="$ac_config_files Makefile" + + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. 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"unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + + *) as_fn_error $? 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Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 +ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'` +ac_delim='%!_!# ' +for ac_last_try in false false false false false :; do + . ./conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + + ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` + if test $ac_delim_n = $ac_delim_num; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done +rm -f conf$$subs.sh + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK && +_ACEOF +sed -n ' +h +s/^/S["/; s/!.*/"]=/ +p +g +s/^[^!]*!// +:repl +t repl +s/'"$ac_delim"'$// +t delim +:nl +h +s/\(.\{148\}\)..*/\1/ +t more1 +s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/ +p +n +b repl +:more1 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t nl +:delim +h +s/\(.\{148\}\)..*/\1/ +t more2 +s/["\\]/\\&/g; s/^/"/; s/$/"/ +p +b +:more2 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t delim +' <conf$$subs.awk | sed ' +/^[^""]/{ + N + s/\n// +} +' >>$CONFIG_STATUS || ac_write_fail=1 +rm -f conf$$subs.awk +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +_ACAWK +cat >>"\$ac_tmp/subs1.awk" <<_ACAWK && + for (key in S) S_is_set[key] = 1 + FS = "" + +} +{ + line = $ 0 + nfields = split(line, field, "@") + substed = 0 + len = length(field[1]) + for (i = 2; i < nfields; i++) { + key = field[i] + keylen = length(key) + if (S_is_set[key]) { + value = S[key] + line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) + len += length(value) + length(field[++i]) + substed = 1 + } else + len += 1 + keylen + } + + print line +} + +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then + sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" +else + cat +fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ + || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done + +# For the awk script, D is an array of macro values keyed by name, +# likewise P contains macro parameters if any. Preserve backslash +# newline sequences. + +ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* +sed -n ' +s/.\{148\}/&'"$ac_delim"'/g +t rset +:rset +s/^[ ]*#[ ]*define[ ][ ]*/ / +t def +d +:def +s/\\$// +t bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3"/p +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p +d +:bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3\\\\\\n"\\/p +t cont +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p +t cont +d +:cont +n +s/.\{148\}/&'"$ac_delim"'/g +t clear +:clear +s/\\$// +t bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/"/p +d +:bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p +b cont +' <confdefs.h | sed ' +s/'"$ac_delim"'/"\\\ +"/g' >>$CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + for (key in D) D_is_set[key] = 1 + FS = "" +} +/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ { + line = \$ 0 + split(line, arg, " ") + if (arg[1] == "#") { + defundef = arg[2] + mac1 = arg[3] + } else { + defundef = substr(arg[1], 2) + mac1 = arg[2] + } + split(mac1, mac2, "(") #) + macro = mac2[1] + prefix = substr(line, 1, index(line, defundef) - 1) + if (D_is_set[macro]) { + # Preserve the white space surrounding the "#". + print prefix "define", macro P[macro] D[macro] + next + } else { + # Replace #undef with comments. This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS " +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;; + :[FH]-) ac_tag=-:-;; + :[FH]*) ac_tag=$ac_tag:$ac_tag.in;; + esac + ac_save_IFS=$IFS + IFS=: + set x $ac_tag + IFS=$ac_save_IFS + shift + ac_file=$1 + shift + + case $ac_mode in + :L) ac_source=$1;; + :[FH]) + ac_file_inputs= + for ac_f + do + case $ac_f in + -) ac_f="$ac_tmp/stdin";; + *) # Look for the file first in the build tree, then in the source tree + # (if the path is not absolute). The absolute path cannot be DOS-style, + # because $ac_f cannot contain `:'. + test -f "$ac_f" || + case $ac_f in + [\\/$]*) false;; + *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";; + esac || + as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;; + esac + case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac + as_fn_append ac_file_inputs " '$ac_f'" + done + + # Let's still pretend it is `configure' which instantiates (i.e., don't + # use $as_me), people would be surprised to read: + # /* config.h. Generated by config.status. */ + configure_input='Generated from '` + $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g' + `' by configure.' + if test x"$ac_file" != x-; then + configure_input="$ac_file. $configure_input" + { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5 +$as_echo "$as_me: creating $ac_file" >&6;} + fi + # Neutralize special characters interpreted by sed in replacement strings. + case $configure_input in #( + *\&* | *\|* | *\\* ) + ac_sed_conf_input=`$as_echo "$configure_input" | + sed 's/[\\\\&|]/\\\\&/g'`;; #( + *) ac_sed_conf_input=$configure_input;; + esac + + case $ac_tag in + *:-:* | *:-) cat >"$ac_tmp/stdin" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;; + esac + ;; + esac + + ac_dir=`$as_dirname -- "$ac_file" || +$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$ac_file" : 'X\(//\)[^/]' \| \ + X"$ac_file" : 'X\(//\)$' \| \ + X"$ac_file" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$ac_file" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + as_dir="$ac_dir"; as_fn_mkdir_p + ac_builddir=. + +case "$ac_dir" in +.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;; +*) + ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'` + # A ".." for each directory in $ac_dir_suffix. + ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'` + case $ac_top_builddir_sub in + "") ac_top_builddir_sub=. ac_top_build_prefix= ;; + *) ac_top_build_prefix=$ac_top_builddir_sub/ ;; + esac ;; +esac +ac_abs_top_builddir=$ac_pwd +ac_abs_builddir=$ac_pwd$ac_dir_suffix +# for backward compatibility: +ac_top_builddir=$ac_top_build_prefix + +case $srcdir in + .) # We are building in place. + ac_srcdir=. + ac_top_srcdir=$ac_top_builddir_sub + ac_abs_top_srcdir=$ac_pwd ;; + [\\/]* | ?:[\\/]* ) # Absolute name. + ac_srcdir=$srcdir$ac_dir_suffix; + ac_top_srcdir=$srcdir + ac_abs_top_srcdir=$srcdir ;; + *) # Relative name. + ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix + ac_top_srcdir=$ac_top_build_prefix$srcdir + ac_abs_top_srcdir=$ac_pwd/$srcdir ;; +esac +ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix + + + case $ac_mode in + :F) + # + # CONFIG_FILE + # + + case $INSTALL in + [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;; + *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;; + esac +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# If the template does not know about datarootdir, expand it. +# FIXME: This hack should be removed a few years after 2.60. +ac_datarootdir_hack=; ac_datarootdir_seen= +ac_sed_dataroot=' +/datarootdir/ { + p + q +} +/@datadir@/p +/@docdir@/p +/@infodir@/p +/@localedir@/p +/@mandir@/p' +case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in +*datarootdir*) ac_datarootdir_seen=yes;; +*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5 +$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;} +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + ac_datarootdir_hack=' + s&@datadir@&$datadir&g + s&@docdir@&$docdir&g + s&@infodir@&$infodir&g + s&@localedir@&$localedir&g + s&@mandir@&$mandir&g + s&\\\${datarootdir}&$datarootdir&g' ;; +esac +_ACEOF + +# Neutralize VPATH when `$srcdir' = `.'. +# Shell code in configure.ac might set extrasub. +# FIXME: do we really want to maintain this feature? +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_sed_extra="$ac_vpsub +$extrasub +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +:t +/@[a-zA-Z_][a-zA-Z_0-9]*@/!b +s|@configure_input@|$ac_sed_conf_input|;t t +s&@top_builddir@&$ac_top_builddir_sub&;t t +s&@top_build_prefix@&$ac_top_build_prefix&;t t +s&@srcdir@&$ac_srcdir&;t t +s&@abs_srcdir@&$ac_abs_srcdir&;t t +s&@top_srcdir@&$ac_top_srcdir&;t t +s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t +s&@builddir@&$ac_builddir&;t t +s&@abs_builddir@&$ac_abs_builddir&;t t +s&@abs_top_builddir@&$ac_abs_top_builddir&;t t +s&@INSTALL@&$ac_INSTALL&;t t +$ac_datarootdir_hack +" +eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \ + >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + +test -z "$ac_datarootdir_hack$ac_datarootdir_seen" && + { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } && + { ac_out=`sed -n '/^[ ]*datarootdir[ ]*:*=/p' \ + "$ac_tmp/out"`; test -z "$ac_out"; } && + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir' +which seems to be undefined. Please make sure it is defined" >&5 +$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir' +which seems to be undefined. Please make sure it is defined" >&2;} + + rm -f "$ac_tmp/stdin" + case $ac_file in + -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";; + *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";; + esac \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + ;; + :H) + # + # CONFIG_HEADER + # + if test x"$ac_file" != x-; then + { + $as_echo "/* $configure_input */" \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" + } >"$ac_tmp/config.h" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then + { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5 +$as_echo "$as_me: $ac_file is unchanged" >&6;} + else + rm -f "$ac_file" + mv "$ac_tmp/config.h" "$ac_file" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + fi + else + $as_echo "/* $configure_input */" \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \ + || as_fn_error $? "could not create -" "$LINENO" 5 + fi + ;; + + + esac + +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + diff --git a/c++tools/configure.ac b/c++tools/configure.ac new file mode 100644 index 00000000000..75773650be7 --- /dev/null +++ b/c++tools/configure.ac @@ -0,0 +1,210 @@ +# Configure script for c++tools +# Copyright (C) 2020 Free Software Foundation, Inc. +# Written by Nathan Sidwell <nathan@acm.org> while at FaceBook +# +# This file 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 3 of the License, or +# (at your option) any later version. +# +# This program 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 this program; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +# C++ has grown a C++20 mapper server. This may be used to provide +# and/or learn and/or build required modules. This sample server +# shows how the protocol introduced by wg21.link/p1184 may be used. +# By default g++ uses an in-process mapper. + +sinclude(../config/acx.m4) + +AC_INIT(c++tools) + +AC_CONFIG_SRCDIR([server.cc]) + +# Determine the noncanonical names used for directories. +ACX_NONCANONICAL_TARGET + +AC_CANONICAL_SYSTEM +AC_PROG_INSTALL + +AC_PROG_CXX +MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing +AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf]) +AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader]) + +dnl Enabled by default +AC_MSG_CHECKING([whether to build C++ tools]) + AC_ARG_ENABLE(c++-tools, + [AS_HELP_STRING([--enable-c++-tools], + [build auxiliary c++ tools])], + cxx_aux_tools=$enableval, + cxx_aux_tools=yes) + +AC_MSG_RESULT($cxx_aux_tools) +CXX_AUX_TOOLS="$cxx_aux_tools" +AC_SUBST(CXX_AUX_TOOLS) + +AC_ARG_ENABLE([maintainer-mode], +AS_HELP_STRING([--enable-maintainer-mode], +[enable maintainer mode. Add rules to rebuild configurey bits]),, +[enable_maintainer_mode=no]) +case "$enable_maintainer_mode" in + ("yes") maintainer_mode=yes ;; + ("no") maintainer=no ;; + (*) AC_MSG_ERROR([unknown maintainer mode $enable_maintainer_mode]) ;; +esac +AC_MSG_CHECKING([maintainer-mode]) +AC_MSG_RESULT([$maintainer_mode]) +test "$maintainer_mode" = yes && MAINTAINER=yes +AC_SUBST(MAINTAINER) + +# Check if O_CLOEXEC is defined by fcntl +AC_CACHE_CHECK(for O_CLOEXEC, ac_cv_o_cloexec, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <fcntl.h>]], [[ +return open ("/dev/null", O_RDONLY | O_CLOEXEC);]])], +[ac_cv_o_cloexec=yes],[ac_cv_o_cloexec=no])]) +if test $ac_cv_o_cloexec = yes; then + AC_DEFINE(HOST_HAS_O_CLOEXEC, 1, + [Define if O_CLOEXEC supported by fcntl.]) +fi + +# C++ Modules would like some networking features to provide the mapping +# server. You can still use modules without them though. +# The following network-related checks could probably do with some +# Windows and other non-linux defenses and checking. + +# Local socket connectivity wants AF_UNIX networking +# Check for AF_UNIX networking +AC_CACHE_CHECK(for AF_UNIX, ac_cv_af_unix, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <netinet/in.h>]],[[ +sockaddr_un un; +un.sun_family = AF_UNSPEC; +int fd = socket (AF_UNIX, SOCK_STREAM, 0); +connect (fd, (sockaddr *)&un, sizeof (un));]])], +[ac_cv_af_unix=yes], +[ac_cv_af_unix=no])]) +if test $ac_cv_af_unix = yes; then + AC_DEFINE(HAVE_AF_UNIX, 1, + [Define if AF_UNIX supported.]) +fi + +# Remote socket connectivity wants AF_INET6 networking +# Check for AF_INET6 networking +AC_CACHE_CHECK(for AF_INET6, ac_cv_af_inet6, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netdb.h>]],[[ +sockaddr_in6 in6; +in6.sin6_family = AF_UNSPEC; +struct addrinfo *addrs = 0; +struct addrinfo hints; +hints.ai_flags = 0; +hints.ai_family = AF_INET6; +hints.ai_socktype = SOCK_STREAM; +hints.ai_protocol = 0; +hints.ai_canonname = 0; +hints.ai_addr = 0; +hints.ai_next = 0; +int e = getaddrinfo ("localhost", 0, &hints, &addrs); +const char *str = gai_strerror (e); +freeaddrinfo (addrs); +int fd = socket (AF_INET6, SOCK_STREAM, 0); +connect (fd, (sockaddr *)&in6, sizeof (in6));]])], +[ac_cv_af_inet6=yes], +[ac_cv_af_inet6=no])]) +if test $ac_cv_af_inet6 = yes; then + AC_DEFINE(HAVE_AF_INET6, 1, + [Define if AF_INET6 supported.]) +fi + +# Efficient server response wants epoll +# Check for epoll_create, epoll_ctl, epoll_pwait +AC_CACHE_CHECK(for epoll, ac_cv_epoll, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/epoll.h>]],[[ +int fd = epoll_create (1); +epoll_event ev; +ev.events = EPOLLIN; +ev.data.fd = 0; +epoll_ctl (fd, EPOLL_CTL_ADD, 0, &ev); +epoll_pwait (fd, 0, 0, -1, 0);]])], +[ac_cv_epoll=yes], +[ac_cv_epoll=no])]) +if test $ac_cv_epoll = yes; then + AC_DEFINE(HAVE_EPOLL, 1, + [Define if epoll_create, epoll_ctl, epoll_pwait provided.]) +fi + +# If we can't use epoll, try pselect. +# Check for pselect +AC_CACHE_CHECK(for pselect, ac_cv_pselect, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/select.h>]],[[ +pselect (0, 0, 0, 0, 0, 0);]])], +[ac_cv_pselect=yes], +[ac_cv_pselect=no])]) +if test $ac_cv_pselect = yes; then + AC_DEFINE(HAVE_PSELECT, 1, + [Define if pselect provided.]) +fi + +# And failing that, use good old select. +# If we can't even use this, the server is serialized. +# Check for select +AC_CACHE_CHECK(for select, ac_cv_select, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/select.h>]],[[ +select (0, 0, 0, 0, 0);]])], +[ac_cv_select=yes], +[ac_cv_select=no])]) +if test $ac_cv_select = yes; then + AC_DEFINE(HAVE_SELECT, 1, + [Define if select provided.]) +fi + +# Avoid some fnctl calls by using accept4, when available. +# Check for accept4 +AC_CACHE_CHECK(for accept4, ac_cv_accept4, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <sys/socket.h>]],[[ +int err = accept4 (1, 0, 0, SOCK_NONBLOCK);]])], +[ac_cv_accept4=yes], +[ac_cv_accept4=no])]) +if test $ac_cv_accept4 = yes; then + AC_DEFINE(HAVE_ACCEPT4, 1, + [Define if accept4 provided.]) +fi + +# For better server messages, look for a way to stringize network addresses +# Check for inet_ntop +AC_CACHE_CHECK(for inet_ntop, ac_cv_inet_ntop, [ +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include <arpa/inet.h> +#include <netinet/in.h>]],[[ +sockaddr_in6 in6; +char buf[INET6_ADDRSTRLEN]; +const char *str = inet_ntop (AF_INET6, &in6, buf, sizeof (buf));]])], +[ac_cv_inet_ntop=yes], +[ac_cv_inet_ntop=no])]) +if test $ac_cv_inet_ntop = yes; then + AC_DEFINE(HAVE_INET_NTOP, 1, + [Define if inet_ntop provided.]) +fi + +AC_CONFIG_HEADERS([config.h]) +AC_CONFIG_FILES([Makefile]) + +AC_OUTPUT diff --git a/c++tools/resolver.cc b/c++tools/resolver.cc new file mode 100644 index 00000000000..5028d2a4a37 --- /dev/null +++ b/c++tools/resolver.cc @@ -0,0 +1,272 @@ +/* C++ modules. Experimental! -*- c++ -*- + Copyright (C) 2017-2020 Free Software Foundation, Inc. + Written by Nathan Sidwell <nathan@acm.org> while at FaceBook + + This file is part of GCC. + + GCC 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 3, or (at your option) + any later version. + + GCC 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 GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#include "config.h" + +#include "resolver.h" +// C++ +#include <algorithm> +// C +#include <cstring> +// OS +#include <fcntl.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/types.h> +#include <sys/stat.h> + +#ifndef DIR_SEPARATOR +#define DIR_SEPARATOR '/' +#endif + +module_resolver::module_resolver (bool map, bool xlate) + : default_map (map), default_translate (xlate) +{ +} + +module_resolver::~module_resolver () +{ + if (fd_repo >= 0) + close (fd_repo); +} + +bool +module_resolver::set_repo (std::string &&r, bool force) +{ + if (force || repo.empty ()) + { + repo = std::move (r); + force = true; + } + return force; +} + +bool +module_resolver::add_mapping (std::string &&module, std::string &&file, + bool force) +{ + auto res = map.emplace (std::move (module), std::move (file)); + if (res.second) + force = true; + else if (force) + res.first->second = std::move (file); + + return force; +} + +int +module_resolver::read_tuple_file (int fd, char const *prefix, bool force) +{ + struct stat stat; + if (fstat (fd, &stat) < 0) + return -errno; + + if (!stat.st_size) + return 0; + + // Just map the file, we're gonna read all of it, so no need for + // line buffering + void *buffer = mmap (nullptr, stat.st_size, PROT_READ, MAP_PRIVATE, fd, 0); + if (buffer == MAP_FAILED) + return -errno; + + size_t prefix_len = prefix ? strlen (prefix) : 0; + unsigned lineno = 0; + + for (char const *begin = reinterpret_cast <char const *> (buffer), + *end = begin + stat.st_size, *eol; + begin != end; begin = eol + 1) + { + lineno++; + eol = std::find (begin, end, '\n'); + if (eol == end) + // last line has no \n, ignore the line, you lose + break; + + auto *pos = begin; + bool pfx_search = prefix_len != 0; + + pfx_search: + while (*pos == ' ' || *pos == '\t') + pos++; + + auto *space = pos; + while (*space != '\n' && *space != ' ' && *space != '\t') + space++; + + if (pos == space) + // at end of line, nothing here + continue; + + if (pfx_search) + { + if (size_t (space - pos) == prefix_len + && std::equal (pos, space, prefix)) + pfx_search = false; + pos = space; + goto pfx_search; + } + + std::string module (pos, space); + while (*space == ' ' || *space == '\t') + space++; + std::string file (space, eol); + + if (module[0] == '$') + { + if (module == "$root") + set_repo (std::move (file)); + else + return lineno; + } + else + { + if (file.empty ()) + file = GetCMIName (module); + add_mapping (std::move (module), std::move (file), force); + } + } + + munmap (buffer, stat.st_size); + + return 0; +} + +char const * +module_resolver::GetCMISuffix () +{ + return "gcm"; +} + +module_resolver * +module_resolver::ConnectRequest (Cody::Server *s, unsigned version, + std::string &a, std::string &i) +{ + if (!version || version > Cody::Version) + s->ErrorResponse ("version mismatch"); + else if (a != "GCC") + // Refuse anything but GCC + ErrorResponse (s, std::string ("only GCC supported")); + else if (!ident.empty () && ident != i) + // Failed ident check + ErrorResponse (s, std::string ("bad ident")); + else + // Success! + s->ConnectResponse ("gcc"); + + return this; +} + +int +module_resolver::ModuleRepoRequest (Cody::Server *s) +{ + s->PathnameResponse (repo); + return 0; +} + +int +module_resolver::cmi_response (Cody::Server *s, std::string &module) +{ + auto iter = map.find (module); + if (iter == map.end ()) + { + std::string file; + if (default_map) + file = std::move (GetCMIName (module)); + auto res = map.emplace (module, file); + iter = res.first; + } + + if (iter->second.empty ()) + s->ErrorResponse ("no such module"); + else + s->PathnameResponse (iter->second); + + return 0; +} + +int +module_resolver::ModuleExportRequest (Cody::Server *s, Cody::Flags, + std::string &module) +{ + return cmi_response (s, module); +} + +int +module_resolver::ModuleImportRequest (Cody::Server *s, Cody::Flags, + std::string &module) +{ + return cmi_response (s, module); +} + +int +module_resolver::IncludeTranslateRequest (Cody::Server *s, Cody::Flags, + std::string &include) +{ + auto iter = map.find (include); + if (iter == map.end () && default_translate) + { + // Not found, look for it + auto file = GetCMIName (include); + struct stat statbuf; + bool ok = true; + +#if HAVE_FSTATAT + int fd_dir = AT_FDCWD; + if (!repo.empty ()) + { + if (fd_repo == -1) + { + fd_repo = open (repo.c_str (), + O_RDONLY | O_CLOEXEC | O_DIRECTORY); + if (fd_repo < 0) + fd_repo = -2; + } + fd_dir = fd_repo; + } + + if (!repo.empty () && fd_repo < 0) + ok = false; + else if (fstatat (fd_dir, file.c_str (), &statbuf, 0) < 0 + || !S_ISREG (statbuf.st_mode)) + ok = false; +#else + auto append = repo; + append.push_back (DIR_SEPARATOR); + append.append (file); + if (stat (append.c_str (), &statbuf) < 0 + || !S_ISREG (statbuf.st_mode)) + ok = false; +#endif + if (!ok) + // Mark as not present + file.clear (); + auto res = map.emplace (include, file); + iter = res.first; + } + + if (iter == map.end () || iter->second.empty ()) + s->BoolResponse (false); + else + s->PathnameResponse (iter->second); + + return 0; +} + diff --git a/c++tools/resolver.h b/c++tools/resolver.h new file mode 100644 index 00000000000..19339125b26 --- /dev/null +++ b/c++tools/resolver.h @@ -0,0 +1,105 @@ +/* C++ modules. Experimental! -*- c++ -*- + Copyright (C) 2017-2020 Free Software Foundation, Inc. + Written by Nathan Sidwell <nathan@acm.org> while at FaceBook + + This file is part of GCC. + + GCC 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 3, or (at your option) + any later version. + + GCC 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 GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#ifndef GXX_RESOLVER_H +#define GXX_RESOLVER_H 1 + +// Mapper interface for client and server bits +#include "cody.hh" +// C++ +#include <string> +#include <map> + +// This is a GCC class, so GCC coding conventions on new bits. +class module_resolver : public Cody::Resolver +{ +public: + using parent = Cody::Resolver; + using module_map = std::map<std::string, std::string>; + +private: + std::string repo; + std::string ident; + module_map map; + int fd_repo = -1; + bool default_map = true; + bool default_translate = true; + +public: + module_resolver (bool map = true, bool xlate = false); + virtual ~module_resolver () override; + +public: + void set_default_map (bool d) + { + default_map = d; + } + void set_default_translate (bool d) + { + default_translate = d; + } + void set_ident (char const *i) + { + ident = i; + } + bool set_repo (std::string &&repo, bool force = false); + bool add_mapping (std::string &&module, std::string &&file, + bool force = false); + + // Return +ve line number of error, or -ve errno + int read_tuple_file (int fd, char const *prefix, bool force = false); + int read_tuple_file (int fd, std::string const &prefix, + bool force = false) + { + return read_tuple_file (fd, prefix.empty () ? nullptr : prefix.c_str (), + force); + } + +public: + // Virtual overriders, names are controlled by Cody::Resolver + using parent::ConnectRequest; + virtual module_resolver *ConnectRequest (Cody::Server *, unsigned version, + std::string &agent, + std::string &ident) + override; + using parent::ModuleRepoRequest; + virtual int ModuleRepoRequest (Cody::Server *) override; + using parent::ModuleExportRequest; + virtual int ModuleExportRequest (Cody::Server *s, Cody::Flags, + std::string &module) + override; + using parent::ModuleImportRequest; + virtual int ModuleImportRequest (Cody::Server *s, Cody::Flags, + std::string &module) + override; + using parent::IncludeTranslateRequest; + virtual int IncludeTranslateRequest (Cody::Server *s, Cody::Flags, + std::string &include) + override; + +private: + using parent::GetCMISuffix; + virtual char const *GetCMISuffix () override; + +private: + int cmi_response (Cody::Server *s, std::string &module); +}; + +#endif diff --git a/c++tools/server.cc b/c++tools/server.cc new file mode 100644 index 00000000000..6457dc5b878 --- /dev/null +++ b/c++tools/server.cc @@ -0,0 +1,976 @@ +/* C++ modules. Experimental! + Copyright (C) 2018-2020 Free Software Foundation, Inc. + Written by Nathan Sidwell <nathan@acm.org> while at FaceBook + + This file is part of GCC. + + GCC 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 3, or (at your option) + any later version. + + GCC 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 GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#include "config.h" +#include "resolver.h" + +// C++ +#include <set> +#include <vector> +#include <map> +// C +#include <csignal> +#include <cstring> +#include <cstdarg> +// OS +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +// Network +/* Include network stuff first. Excitingly OSX10.14 uses bcmp here, which + we poison later! */ +#if defined (HAVE_AF_UNIX) || defined (HAVE_AF_INET6) +/* socket, bind, listen, accept{4} */ +# define NETWORKING 1 +# include <sys/socket.h> +# ifdef HAVE_AF_UNIX +/* sockaddr_un */ +# include <sys/un.h> +# endif +# include <netinet/in.h> +# ifdef HAVE_AF_INET6 +/* sockaddr_in6, getaddrinfo, freeaddrinfo, gai_sterror, ntohs, htons. */ +# include <netdb.h> +# endif +#ifdef HAVE_INET_NTOP +/* inet_ntop. */ +#include <arpa/inet.h> +#endif +#endif +#ifndef HAVE_AF_INET6 +# define gai_strerror(X) "" +#endif + +#include <getopt.h> + +// Select or epoll +#ifdef NETWORKING +#ifdef HAVE_EPOLL +/* epoll_create, epoll_ctl, epoll_pwait */ +#include <sys/epoll.h> +#endif +#if defined (HAVE_PSELECT) || defined (HAVE_SELECT) +/* pselect or select */ +#include <sys/select.h> +#endif +#endif + +// GCC +#include "version.h" +#include "ansidecl.h" +#define HAVE_DECL_BASENAME 1 /* See comment in gcc/configure.ac. */ +#include "libiberty.h" + +#if !HOST_HAS_O_CLOEXEC +#define O_CLOEXEC 0 +#endif + +#ifndef IS_DIR_SEPARATOR +#define IS_DIR_SEPARATOR(C) ((C) == '/') +#endif +#ifndef DIR_SEPARATOR +#define DIR_SEPARATOR '/' +#endif + +#ifdef NETWORKING +struct netmask { + in6_addr addr; + unsigned bits; + + netmask (const in6_addr &a, unsigned b) + { + if (b > sizeof (in6_addr) * 8) + b = sizeof (in6_addr) * 8; + bits = b; + unsigned byte = (b + 7) / 8; + unsigned ix = 0; + for (ix = 0; ix < byte; ix++) + addr.s6_addr[ix] = a.s6_addr[ix]; + for (; ix != sizeof (in6_addr); ix++) + addr.s6_addr[ix] = 0; + if (b & 3) + addr.s6_addr[b/7] &= (255 << 8) >> (b & 3); + } + + bool includes (const in6_addr &a) const + { + unsigned byte = bits / 8; + for (unsigned ix = 0; ix != byte; ix++) + if (addr.s6_addr[ix] != a.s6_addr[ix]) + return false; + if (bits & 3) + if ((addr.s6_addr[byte] ^ a.s6_addr[byte]) >> (8 - (bits & 3))) + return false; + return true; + } +}; + +/* Netmask comparison. */ +struct netmask_cmp { + bool operator() (const netmask &a, const netmask &b) const + { + if (a.bits != b.bits) + return a.bits < b.bits; + for (unsigned ix = 0; ix != sizeof (in6_addr); ix++) + if (a.addr.s6_addr[ix] != b.addr.s6_addr[ix]) + return a.addr.s6_addr[ix] < b.addr.s6_addr[ix]; + return false; + } +}; + +typedef std::set<netmask, netmask_cmp> netmask_set_t; +typedef std::vector<netmask> netmask_vec_t; +#endif + +const char *progname; + +/* Speak thoughts out loud. */ +static bool flag_noisy = false; + +/* One and done. */ +static bool flag_one = false; + +/* Serialize connections. */ +static bool flag_sequential = false; + +/* Fallback to default if map file is unrewarding. */ +static bool flag_map = false; + +/* Fallback to xlate if map file is unrewarding. */ +static bool flag_xlate = false; + +/* Root binary directory. */ +static const char *flag_root = "gcm.cache"; + +#ifdef NETWORKING +static netmask_set_t netmask_set; + +static netmask_vec_t accept_addrs; +#endif + +/* Strip out the source directory from FILE. */ + +static const char * +trim_src_file (const char *file) +{ + static const char me[] = __FILE__; + unsigned pos = 0; + + while (file[pos] == me[pos] && me[pos]) + pos++; + while (pos && !IS_DIR_SEPARATOR (me[pos-1])) + pos--; + + return file + pos; +} + +/* Die screaming. */ + +void ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1 ATTRIBUTE_COLD +internal_error (const char *fmt, ...) +{ + fprintf (stderr, "%s:Internal error ", progname); + va_list args; + + va_start (args, fmt); + vfprintf (stderr, fmt, args); + va_end (args); + fprintf (stderr, "\n"); + + exit (2); +} + +/* Hooked to from gcc_assert & gcc_unreachable. */ + +void ATTRIBUTE_NORETURN ATTRIBUTE_COLD +fancy_abort (const char *file, int line, const char *func) +{ + internal_error ("in %s, at %s:%d", func, trim_src_file (file), line); +} + +/* Exploded on a signal. */ + +static void ATTRIBUTE_NORETURN ATTRIBUTE_COLD +crash_signal (int sig) +{ + signal (sig, SIG_DFL); + internal_error ("signal %s", strsignal (sig)); +} + +/* A fatal error of some kind. */ + +static void ATTRIBUTE_NORETURN ATTRIBUTE_COLD ATTRIBUTE_PRINTF_1 +error (const char *msg, ...) +{ + fprintf (stderr, "%s:error: ", progname); + va_list args; + + va_start (args, msg); + vfprintf (stderr, msg, args); + va_end (args); + fprintf (stderr, "\n"); + + exit (1); +} + +#ifdef NETWORKING +/* Progress messages to the user. */ +static bool ATTRIBUTE_PRINTF_1 ATTRIBUTE_COLD +noisy (const char *fmt, ...) +{ + fprintf (stderr, "%s:", progname); + va_list args; + va_start (args, fmt); + vfprintf (stderr, fmt, args); + va_end (args); + fprintf (stderr, "\n"); + + return false; +} +#endif + +/* More messages to the user. */ + +static void ATTRIBUTE_PRINTF_2 +fnotice (FILE *file, const char *fmt, ...) +{ + va_list args; + + va_start (args, fmt); + vfprintf (file, fmt, args); + va_end (args); +} + +static void ATTRIBUTE_NORETURN +print_usage (int error_p) +{ + FILE *file = error_p ? stderr : stdout; + int status = error_p ? 1 : 0; + + fnotice (file, "Usage: %s [OPTION...] [CONNECTION] [MAPPINGS...] \n\n", + progname); + fnotice (file, "C++ Module Mapper.\n\n"); + fnotice (file, " -a, --accept Netmask to accept from\n"); + fnotice (file, " -f, --fallback Use fallback for missing mappings\n"); + fnotice (file, " -h, --help Print this help, then exit\n"); + fnotice (file, " -n, --noisy Print progress messages\n"); + fnotice (file, " -1, --one One connection and then exit\n"); + fnotice (file, " -r, --root DIR Root compiled module directory\n"); + fnotice (file, " -s, --sequential Process connections sequentially\n"); + fnotice (file, " -v, --version Print version number, then exit\n"); + fnotice (file, "Send SIGTERM(%d) to terminate\n", SIGTERM); + fnotice (file, "\nFor bug reporting instructions, please see:\n%s.\n", + bug_report_url); + exit (status); +} + +/* Print version information and exit. */ + +static void ATTRIBUTE_NORETURN +print_version (void) +{ + fnotice (stdout, "%s %s%s\n", progname, pkgversion_string, version_string); + fprintf (stdout, "Copyright %s 2018-2020 Free Software Foundation, Inc.\n", + ("(C)")); + fnotice (stdout, + ("This is free software; see the source for copying conditions.\n" + "There is NO warranty; not even for MERCHANTABILITY or \n" + "FITNESS FOR A PARTICULAR PURPOSE.\n\n")); + exit (0); +} + +/* ARG is a netmask to accept from. Add it to the table. Return + false if we fail to resolve it. */ + +static bool +accept_from (char *arg ATTRIBUTE_UNUSED) +{ + bool ok = true; +#if HAVE_AF_INET6 + unsigned bits = sizeof (in6_addr) * 8; + char *slash = strrchr (arg, '/'); + if (slash) + { + *slash = 0; + if (slash[1]) + { + char *endp; + bits = strtoul (slash + 1, &endp, 0); + } + } + + addrinfo hints; + + hints.ai_flags = AI_NUMERICSERV; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = 0; + hints.ai_addrlen = 0; + hints.ai_addr = NULL; + hints.ai_canonname = NULL; + hints.ai_next = NULL; + + struct addrinfo *addrs = NULL; + if (int e = getaddrinfo (slash == arg ? NULL : arg, "0", &hints, &addrs)) + { + noisy ("cannot resolve '%s': %s", arg, gai_strerror (e)); + ok = false; + } + else + for (addrinfo *next = addrs; next; next = next->ai_next) + if (next->ai_family == AF_INET6) + { + netmask mask (((const sockaddr_in6 *)next->ai_addr)->sin6_addr, bits); + netmask_set.insert (mask); + } + freeaddrinfo (addrs); +#endif + return ok; +} + +/* Process args, return index to first non-arg. */ + +static int +process_args (int argc, char **argv) +{ + static const struct option options[] = + { + { "accept", required_argument, NULL, 'a' }, + { "help", no_argument, NULL, 'h' }, + { "map", no_argument, NULL, 'm' }, + { "noisy", no_argument, NULL, 'n' }, + { "one", no_argument, NULL, '1' }, + { "root", required_argument, NULL, 'r' }, + { "sequential", no_argument, NULL, 's' }, + { "translate",no_argument, NULL, 't' }, + { "version", no_argument, NULL, 'v' }, + { 0, 0, 0, 0 } + }; + int opt; + bool bad_accept = false; + const char *opts = "a:fhmn1r:stv"; + while ((opt = getopt_long (argc, argv, opts, options, NULL)) != -1) + { + switch (opt) + { + case 'a': + if (!accept_from (optarg)) + bad_accept = true; + break; + case 'h': + print_usage (false); + /* print_usage will exit. */ + case 'f': // deprecated alias + case 'm': + flag_map = true; + break; + case 'n': + flag_noisy = true; + break; + case '1': + flag_one = true; + break; + case 'r': + flag_root = optarg; + break; + case 's': + flag_sequential = true; + break; + case 't': + flag_xlate = true; + break; + case 'v': + print_version (); + /* print_version will exit. */ + default: + print_usage (true); + /* print_usage will exit. */ + } + } + + if (bad_accept) + error ("failed to resolve all accept addresses"); + + return optind; +} + +#ifdef NETWORKING + +/* Manipulate the EPOLL state, or do nothing, if there is epoll. */ + +#ifdef HAVE_EPOLL +static inline void +do_epoll_ctl (int epoll_fd, int code, int event, int fd, unsigned data) +{ + epoll_event ev; + ev.events = event; + ev.data.u32 = data; + if (epoll_ctl (epoll_fd, code, fd, &ev)) + { + noisy ("epoll_ctl error:%s", xstrerror (errno)); + gcc_unreachable (); + } +} +#define my_epoll_ctl(EFD,C,EV,FD,CL) \ + ((EFD) >= 0 ? do_epoll_ctl (EFD,C,EV,FD,CL) : (void)0) +#else +#define my_epoll_ctl(EFD,C,EV,FD,CL) ((void)(EFD), (void)(FD), (void)(CL)) +#endif + +/* We increment this to tell the server to shut down. */ +static volatile int term = false; +static volatile int kill_sock_fd = -1; +#if !defined (HAVE_PSELECT) && defined (HAVE_SELECT) +static int term_pipe[2] = {-1, -1}; +#else +#define term_pipe ((int *)NULL) +#endif + +/* A terminate signal. Shutdown gracefully. */ + +static void +term_signal (int sig) +{ + signal (sig, term_signal); + term = term + 1; + if (term_pipe && term_pipe[1] >= 0) + write (term_pipe[1], &term_pipe[1], 1); +} + +/* A kill signal. Shutdown immediately. */ + +static void +kill_signal (int sig) +{ + signal (sig, SIG_DFL); + int sock_fd = kill_sock_fd; + if (sock_fd >= 0) + close (sock_fd); + exit (2); +} + +bool process_server (Cody::Server *server, unsigned slot, int epoll_fd) +{ + switch (server->GetDirection ()) + { + case Cody::Server::READING: + if (int err = server->Read ()) + return !(err == EINTR || err == EAGAIN); + server->ProcessRequests (); + server->PrepareToWrite (); + break; + + case Cody::Server::WRITING: + if (int err = server->Write ()) + return !(err == EINTR || err == EAGAIN); + server->PrepareToRead (); + break; + + default: + // We should never get here + return true; + } + + // We've changed direction, so update epoll + gcc_assert (server->GetFDRead () == server->GetFDWrite ()); + my_epoll_ctl (epoll_fd, EPOLL_CTL_MOD, + server->GetDirection () == Cody::Server::READING + ? EPOLLIN : EPOLLOUT, server->GetFDRead (), slot + 1); + + return false; +} + +void close_server (Cody::Server *server, int epoll_fd) +{ + my_epoll_ctl (epoll_fd, EPOLL_CTL_DEL, EPOLLIN, server->GetFDRead (), 0); + + close (server->GetFDRead ()); + + delete server; +} + +int open_server (bool ip6, int sock_fd) +{ + sockaddr_in6 addr; + socklen_t addr_len = sizeof (addr); + +#ifdef HAVE_ACCEPT4 + int client_fd = accept4 (sock_fd, ip6 ? (sockaddr *)&addr : nullptr, + &addr_len, SOCK_NONBLOCK); +#else + int client_fd = accept (sock_fd, ip6 ? (sockaddr *)&addr : nullptr, &addr_len); +#endif + if (client_fd < 0) + { + error ("cannot accept: %s", xstrerror (errno)); + flag_one = true; + } + else if (ip6) + { + const char *str = NULL; +#if HAVE_INET_NTOP + char name[INET6_ADDRSTRLEN]; + str = inet_ntop (addr.sin6_family, &addr.sin6_addr, name, sizeof (name)); +#endif + if (!accept_addrs.empty ()) + { + netmask_vec_t::iterator e = accept_addrs.end (); + for (netmask_vec_t::iterator i = accept_addrs.begin (); + i != e; ++i) + if (i->includes (addr.sin6_addr)) + goto present; + close (client_fd); + client_fd = -1; + noisy ("Rejecting connection from disallowed source '%s'", + str ? str : ""); + present:; + } + if (client_fd >= 0) + flag_noisy && noisy ("Accepting connection from '%s'", str ? str : ""); + } + + return client_fd; +} + +/* A server listening on bound socket SOCK_FD. */ + +static void +server (bool ipv6, int sock_fd, module_resolver *resolver) +{ + int epoll_fd = -1; + + signal (SIGTERM, term_signal); +#ifdef HAVE_EPOLL + epoll_fd = epoll_create (1); +#endif + if (epoll_fd >= 0) + my_epoll_ctl (epoll_fd, EPOLL_CTL_ADD, EPOLLIN, sock_fd, 0); + +#if defined (HAVE_EPOLL) || defined (HAVE_PSELECT) || defined (HAVE_SELECT) + sigset_t mask; + { + sigset_t block; + sigemptyset (&block); + sigaddset (&block, SIGTERM); + sigprocmask (SIG_BLOCK, &block, &mask); + } +#endif + +#ifdef HAVE_EPOLL + const unsigned max_events = 20; + epoll_event events[max_events]; +#endif +#if defined (HAVE_PSELECT) || defined (HAVE_SELECT) + fd_set readers, writers; +#endif + if (term_pipe) + pipe (term_pipe); + + // We need stable references to servers, so this array can contain nulls + std::vector<Cody::Server *> connections; + unsigned live = 0; + while (sock_fd >= 0 || live) + { + /* Wait for one or more events. */ + bool eintr = false; + int event_count; + + if (epoll_fd >= 0) + { +#ifdef HAVE_EPOLL + event_count = epoll_pwait (epoll_fd, events, max_events, -1, &mask); +#endif + } + else + { +#if defined (HAVE_PSELECT) || defined (HAVE_SELECT) + FD_ZERO (&readers); + FD_ZERO (&writers); + + unsigned limit = 0; + if (sock_fd >= 0 + && !(term || (live && (flag_one || flag_sequential)))) + { + FD_SET (sock_fd, &readers); + limit = sock_fd + 1; + } + + if (term_pipe && term_pipe[0] >= 0) + { + FD_SET (term_pipe[0], &readers); + if (unsigned (term_pipe[0]) >= limit) + limit = term_pipe[0] + 1; + } + + for (auto iter = connections.begin (); + iter != connections.end (); ++iter) + if (auto *server = *iter) + { + int fd = -1; + switch (server->GetDirection ()) + { + case Cody::Server::READING: + fd = server->GetFDRead (); + FD_SET (fd, &readers); + break; + case Cody::Server::WRITING: + fd = server->GetFDWrite (); + FD_SET (fd, &writers); + break; + default: + break; + } + + if (fd >= 0 && limit <= unsigned (fd)) + limit = fd + 1; + } + +#ifdef HAVE_PSELECT + event_count = pselect (limit, &readers, &writers, NULL, NULL, &mask); +#else + event_count = select (limit, &readers, &writers, NULL, NULL); +#endif + if (term_pipe && FD_ISSET (term_pipe[0], &readers)) + { + /* Fake up an interrupted system call. */ + event_count = -1; + errno = EINTR; + } +#endif + } + + if (event_count < 0) + { + // Error in waiting + if (errno == EINTR) + { + flag_noisy && noisy ("Interrupted wait"); + eintr = true; + } + else + error ("cannot %s: %s", epoll_fd >= 0 ? "epoll_wait" +#ifdef HAVE_PSELECT + : "pselect", +#else + : "select", +#endif + xstrerror (errno)); + event_count = 0; + } + + auto iter = connections.begin (); + while (event_count--) + { + // Process an event + int active = -2; + + if (epoll_fd >= 0) + { +#ifdef HAVE_EPOLL + /* See PR c++/88664 for why a temporary is used. */ + unsigned data = events[event_count].data.u32; + active = int (data) - 1; +#endif + } + else + { + for (; iter != connections.end (); ++iter) + if (auto *server = *iter) + { + bool found = false; + switch (server->GetDirection ()) + { +#if defined (HAVE_PSELECT) || defined (HAVE_SELECT) + case Cody::Server::READING: + found = FD_ISSET (server->GetFDRead (), &readers); + break; + case Cody::Server::WRITING: + found = FD_ISSET (server->GetFDWrite (), &writers); + break; +#endif + default: + break; + } + + if (found) + { + active = iter - connections.begin (); + ++iter; + break; + } + } + + if (active < 0 && sock_fd >= 0 && FD_ISSET (sock_fd, &readers)) + active = -1; + } + + if (active >= 0) + { + // Do the action + auto *server = connections[active]; + if (process_server (server, active, epoll_fd)) + { + connections[active] = nullptr; + close_server (server, epoll_fd); + live--; + if (flag_sequential) + my_epoll_ctl (epoll_fd, EPOLL_CTL_ADD, EPOLLIN, sock_fd, 0); + } + } + else if (active == -1 && !eintr) + { + // New connection + int fd = open_server (ipv6, sock_fd); + if (fd >= 0) + { +#if !defined (HAVE_ACCEPT4) \ + && (defined (HAVE_EPOLL) || defined (HAVE_PSELECT) || defined (HAVE_SELECT)) + int flags = fcntl (fd, F_GETFL, 0); + fcntl (fd, F_SETFL, flags | O_NONBLOCK); +#endif + auto *server = new Cody::Server (resolver, fd); + + unsigned slot = connections.size (); + if (live == slot) + connections.push_back (server); + else + for (auto iter = connections.begin (); ; ++iter) + if (!*iter) + { + *iter = server; + slot = iter - connections.begin (); + break; + } + live++; + my_epoll_ctl (epoll_fd, EPOLL_CTL_ADD, EPOLLIN, fd, slot + 1); + } + } + + if (sock_fd >= 0 + && (term || (live && (flag_one || flag_sequential)))) + { + /* Stop paying attention to sock_fd. */ + my_epoll_ctl (epoll_fd, EPOLL_CTL_DEL, EPOLLIN, sock_fd, 0); + if (flag_one || term) + { + close (sock_fd); + sock_fd = -1; + } + } + } + } +#if defined (HAVE_EPOLL) || defined (HAVE_PSELECT) || defined (HAVE_SELECT) + /* Restore the signal mask. */ + sigprocmask (SIG_SETMASK, &mask, NULL); +#endif + + gcc_assert (sock_fd < 0); + if (epoll_fd >= 0) + close (epoll_fd); + + if (term_pipe && term_pipe[0] >= 0) + { + close (term_pipe[0]); + close (term_pipe[1]); + } +} + +#endif + +static int maybe_parse_socket (std::string &option, module_resolver *r) +{ + /* Local or ipv6 address. */ + auto last = option.find_last_of ('?'); + if (last != option.npos) + { + r->set_ident (option.c_str () + last + 1); + option.erase (last); + } + int fd = -2; + char const *errmsg = nullptr; + + /* Does it look like a socket? */ + if (option[0] == '=') + { + /* A local socket. */ +#if CODY_NETWORKING + fd = Cody::ListenLocal (&errmsg, option.c_str () + 1); +#endif + } + else + { + auto colon = option.find_last_of (':'); + if (colon != option.npos) + { + /* Try a hostname:port address. */ + char const *cptr = option.c_str () + colon; + char *endp; + unsigned port = strtoul (cptr + 1, &endp, 10); + + if (port && endp != cptr + 1 && !*endp) + { + /* Ends in ':number', treat as ipv6 domain socket. */ + option.erase (colon); +#if CODY_NETWORKING + fd = Cody::ListenInet6 (&errmsg, option.c_str (), port); +#endif + } + } + } + + if (errmsg) + error ("failed to open socket: %s", errmsg); + + return fd; +} + +int +main (int argc, char *argv[]) +{ + const char *p = argv[0] + strlen (argv[0]); + while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1])) + --p; + progname = p; + +#ifdef SIGSEGV + signal (SIGSEGV, crash_signal); +#endif +#ifdef SIGILL + signal (SIGILL, crash_signal); +#endif +#ifdef SIGBUS + signal (SIGBUS, crash_signal); +#endif +#ifdef SIGABRT + signal (SIGABRT, crash_signal); +#endif +#ifdef SIGFPE + signal (SIGFPE, crash_signal); +#endif +#ifdef SIGPIPE + /* Ignore sigpipe, so read/write get an error. */ + signal (SIGPIPE, SIG_IGN); +#endif +#ifdef NETWORKING +#ifdef SIGINT + signal (SIGINT, kill_signal); +#endif +#endif + + int argno = process_args (argc, argv); + + std::string name; + int sock_fd = -1; /* Socket fd, otherwise stdin/stdout. */ + module_resolver r (flag_map, flag_xlate); + + if (argno != argc) + { + name = argv[argno]; + sock_fd = maybe_parse_socket (name, &r); + if (!name.empty ()) + argno++; + } + + if (argno != argc) + for (; argno != argc; argno++) + { + std::string option = argv[argno]; + char const *prefix = nullptr; + auto ident = option.find_last_of ('?'); + if (ident != option.npos) + { + prefix = option.c_str () + ident + 1; + option[ident] = 0; + } + int fd = open (option.c_str (), O_RDONLY | O_CLOEXEC); + int err = 0; + if (fd < 0) + err = errno; + else + { + err = r.read_tuple_file (fd, prefix, false); + close (fd); + } + + if (err) + error ("failed reading '%s': %s", option.c_str (), xstrerror (err)); + } + else + r.set_default_map (true); + + if (flag_root) + r.set_repo (flag_root); + +#ifdef HAVE_AF_INET6 + netmask_set_t::iterator end = netmask_set.end (); + for (netmask_set_t::iterator iter = netmask_set.begin (); + iter != end; ++iter) + { + netmask_vec_t::iterator e = accept_addrs.end (); + for (netmask_vec_t::iterator i = accept_addrs.begin (); i != e; ++i) + if (i->includes (iter->addr)) + goto present; + accept_addrs.push_back (*iter); + present:; + } +#endif + +#ifdef NETWORKING + if (sock_fd >= 0) + { + server (name[0] != '=', sock_fd, &r); + if (name[0] == '=') + unlink (name.c_str () + 1); + } + else +#endif + { + auto server = Cody::Server (&r, 0, 1); + + int err = 0; + for (;;) + { + server.PrepareToRead (); + while ((err = server.Read ())) + { + if (err == EINTR || err == EAGAIN) + continue; + goto done; + } + + server.ProcessRequests (); + + server.PrepareToWrite (); + while ((err = server.Write ())) + { + if (err == EINTR || err == EAGAIN) + continue; + goto done; + } + } + done:; + if (err > 0) + error ("communication error:%s", xstrerror (err)); + } + + return 0; +} |