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make/autoconf/util_paths.m4
596 строк
21 KB
Magnus Ihse Bursie
8344030: Improved handling of TOOLCHAIN_PATH
10 сен 2025, 13:00
10 сен 2025, 13:00
33244c8
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# # Copyright (c) 2011, 2025, Oracle and/or its affiliates. All rights reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 only, as # published by the Free Software Foundation. Oracle designates this # particular file as subject to the "Classpath" exception as provided # by Oracle in the LICENSE file that accompanied this code. # # This code 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 # version 2 for more details (a copy is included in the LICENSE file that # accompanied this code). # # You should have received a copy of the GNU General Public License version # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA # or visit www.oracle.com if you need additional information or have any # questions. # ################################################################################ # Appends a string to a path variable, only adding the : when needed. AC_DEFUN([UTIL_APPEND_TO_PATH], [ if test "x$2" != x; then if test "x[$]$1" = x; then $1="$2" else $1="[$]$1:$2" fi fi ]) ################################################################################ # Prepends a string to a path variable, only adding the : when needed. AC_DEFUN([UTIL_PREPEND_TO_PATH], [ if test "x$2" != x; then if test "x[$]$1" = x; then $1="$2" else $1="$2:[$]$1" fi fi ]) ################################################################################ # This will make sure the given variable points to a full and proper # path. This means: # 1) There will be no spaces in the path. On unix platforms, # spaces in the path will result in an error. On Windows, # the path will be rewritten using short-style to be space-free. # 2) The path will be absolute, and it will be in unix-style (on # cygwin). # $1: The name of the variable to fix # $2: if NOFAIL, if the path cannot be resolved then errors will not be # reported and an empty path will be set AC_DEFUN([UTIL_FIXUP_PATH], [ # Only process if variable expands to non-empty path="[$]$1" if test "x$path" != x; then if test "x$OPENJDK_BUILD_OS" = "xwindows"; then imported_path=`$FIXPATH_BASE -q import "$path"` if test $? -ne 0 || test ! -e $imported_path; then if test "x$2" != "xNOFAIL"; then AC_MSG_NOTICE([The path of $1, which is given as "$path", can not be properly resolved.]) AC_MSG_NOTICE([Please see the section "Special Considerations" in building.md.]) AC_MSG_NOTICE([This is the error message given by fixpath:]) # Rerun fixpath without -q to get an error message $FIXPATH_BASE import "$path" AC_MSG_ERROR([Cannot continue]) else imported_path="" fi fi $FIXPATH_BASE -q verify "$imported_path" if test $? -ne 0; then if test "x$2" != "xNOFAIL"; then AC_MSG_ERROR([The path of $1, which resolves as "$path", could not be verified.]) else imported_path="" fi fi [ imported_path_lower=`$ECHO $imported_path | $TR '[:upper:]' '[:lower:]'` ] [ orig_path_lower=`$ECHO $path | $TR '[:upper:]' '[:lower:]'` ] # If only case differs, keep original path if test "x$imported_path_lower" != "x$orig_path_lower"; then $1="$imported_path" fi else # non-Windows [ if [[ "$path" =~ " " ]]; then ] if test "x$2" != "xNOFAIL"; then AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.]) AC_MSG_ERROR([Spaces are not allowed in this path.]) else path="" fi fi # Use eval to expand a potential ~. eval new_path="$path" if test ! -e "$new_path"; then if test "x$2" != "xNOFAIL"; then AC_MSG_ERROR([The path of $1, which resolves as "$new_path", is not found.]) else new_path="" fi fi # Make the path absolute if test "x$new_path" != x; then if test -d "$new_path"; then path="`cd "$new_path"; pwd -L`" else dir="`$DIRNAME "$new_path"`" base="`$BASENAME "$new_path"`" path="`cd "$dir"; pwd -L`/$base" fi else path="" fi $1="$path" fi fi ]) ################################################################################ # Fixup path to be a Windows full long path # Note: Only supported with cygwin/msys2 (cygpath tool) AC_DEFUN([UTIL_FIXUP_WIN_LONG_PATH], [ # Only process if variable expands to non-empty path="[$]$1" if test "x$path" != x; then if test "x$OPENJDK_BUILD_OS" = "xwindows"; then win_path=$($PATHTOOL -wl "$path") if test "x$win_path" != "x$path"; then $1="$win_path" fi fi fi ]) ################################################################################ # Check if the given file is a unix-style or windows-style executable, that is, # if it expects paths in unix-style or windows-style. # Returns "windows" or "unix" in $RESULT. AC_DEFUN([UTIL_CHECK_WINENV_EXEC_TYPE], [ # For cygwin and msys2, if it's linked with the correct helper lib, it # accept unix paths if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin" || \ test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys2"; then linked_libs=`$LDD $1 2>&1` if test $? -ne 0; then # Non-binary files (e.g. shell scripts) are unix files RESULT=unix else [ if [[ "$linked_libs" =~ $WINENV_MARKER_DLL ]]; then ] RESULT=unix else RESULT=windows fi fi elif test "x$OPENJDK_BUILD_OS" = "xwindows"; then # On WSL, we can check if it is a PE file file_type=`$FILE -b $1 2>&1` [ if [[ $file_type =~ PE.*Windows ]]; then ] RESULT=windows else RESULT=unix fi else RESULT=unix fi ]) ################################################################################ # This will make sure the given variable points to a executable # with a full and proper path. This means: # 1) There will be no spaces in the path. On unix platforms, # spaces in the path will result in an error. On Windows, # the path will be rewritten using short-style to be space-free. # 2) The path will be absolute, and it will be in unix-style (on # cygwin). # Any arguments given to the executable is preserved. # If the input variable does not have a directory specification, then # it need to be in the PATH. # $1: The name of the variable to fix # $2: Where to look for the command (replaces $PATH) AC_DEFUN([UTIL_FIXUP_EXECUTABLE], [ input="[$]$1" # Only process if variable expands to non-empty if test "x$input" != x; then # First separate the path from the arguments. This will split at the first # space. [ if [[ "$OPENJDK_BUILD_OS" = "windows" && input =~ ^$FIXPATH ]]; then line="${input#$FIXPATH }" fixpath_prefix="$FIXPATH " else line="$input" fixpath_prefix="" fi ] path="${line%% *}" arguments="${line#"$path"}" [ if ! [[ "$path" =~ /|\\ ]]; then ] # This is a command without path (e.g. "gcc" or "echo") command_type=`type -t "$path"` if test "x$command_type" = xbuiltin || test "x$command_type" = xkeyword; then # Shell builtin or keyword; we're done here new_path="$path" else # Search in $PATH using bash built-in 'type -p'. saved_path="$PATH" if test "x$2" != x; then PATH="$2" fi new_path=`type -p "$path"` if test "x$new_path" = x && test "x$OPENJDK_BUILD_OS" = "xwindows"; then # Try again with .exe new_path="`type -p "$path.exe"`" fi PATH="$saved_path" if test "x$new_path" = x; then AC_MSG_NOTICE([The command for $1, which resolves as "$input", is not found in the PATH.]) AC_MSG_ERROR([Cannot locate $path]) fi fi else # This is a path with slashes, don't look at $PATH if test "x$OPENJDK_BUILD_OS" = "xwindows"; then # fixpath.sh import will do all heavy lifting for us new_path=`$FIXPATH_BASE -q import "$path"` if test $? -ne 0 || test ! -e $new_path; then # It failed, but maybe spaces were part of the path and not separating # the command and argument. Retry using that assumption. new_path=`$FIXPATH_BASE -q import "$input"` if test $? -ne 0 || test ! -e $new_path; then AC_MSG_NOTICE([The command for $1, which is given as "$input", can not be properly resolved.]) AC_MSG_NOTICE([Please see the section "Special Considerations" in building.md.]) AC_MSG_NOTICE([This is the error message given by fixpath:]) # Rerun fixpath without -q to get an error message $FIXPATH_BASE import "$input" AC_MSG_ERROR([Cannot continue]) fi # It worked, clear all "arguments" arguments="" fi else # on unix # Make absolute $1="$path" UTIL_FIXUP_PATH($1, NOFAIL) new_path="[$]$1" if test ! -e $new_path; then AC_MSG_NOTICE([The command for $1, which resolves as "$input", is not found]) [ if [[ "$path" =~ " " ]]; then ] AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.]) fi AC_MSG_ERROR([Cannot locate $path]) fi if test ! -x $new_path; then AC_MSG_NOTICE([The command for $1, which resolves as "$input", is not executable.]) AC_MSG_ERROR([Cannot execute command at $path]) fi fi # end on unix fi # end with or without slashes # Now we have a usable command as new_path, with arguments in arguments if test "x$OPENJDK_BUILD_OS" = "xwindows"; then if test "x$fixpath_prefix" = x; then # Only mess around if fixpath_prefix was not given UTIL_CHECK_WINENV_EXEC_TYPE("$new_path") if test "x$RESULT" = xwindows; then fixpath_prefix="$FIXPATH " # make sure we have an .exe suffix (but not two) new_path="${new_path%.exe}.exe" else # If we have gotten a .exe suffix, remove it new_path="${new_path%.exe}" fi fi fi # Now join together the path and the arguments once again new_complete="$fixpath_prefix$new_path$arguments" $1="$new_complete" fi ]) ################################################################################ # Setup a tool for the given variable. If correctly specified by the user, # use that value, otherwise search for the tool using the supplied code snippet. # $1: variable to set # $2: code snippet to call to look for the tool # $3: code snippet to call if variable was used to find tool AC_DEFUN([UTIL_SETUP_TOOL], [ # Publish this variable in the help. AC_ARG_VAR($1, [Override default value for $1]) if [[ -z "${$1+x}" ]]; then # The variable is not set by user, try to locate tool using the code snippet $2 else # The variable is set, but is it from the command line or the environment? # Try to remove the string !$1! from our list. try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!$1!/} if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then # If it failed, the variable was not from the command line. Ignore it, # but warn the user (except for BASH, which is always set by the calling BASH). if test "x$1" != xBASH; then AC_MSG_WARN([Ignoring value of $1 from the environment. Use command line variables instead.]) fi # Try to locate tool using the code snippet $2 else # If it succeeded, then it was overridden by the user. We will use it # for the tool. # First remove it from the list of overridden variables, so we can test # for unknown variables in the end. CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var" tool_override=[$]$1 # Check if we try to supply an empty value if test "x$tool_override" = x; then AC_MSG_CHECKING([for $1]) AC_MSG_RESULT([[[disabled by user]]]) else # Split up override in command part and argument part tool_and_args=($tool_override) [ tool_command=${tool_and_args[0]} ] [ unset 'tool_and_args[0]' ] [ tool_args=${tool_and_args[@]} ] # Check if the provided tool contains a complete path. tool_basename="${tool_command##*/}" if test "x$tool_basename" = "x$tool_command"; then # A command without a complete path is provided, search $PATH. AC_MSG_NOTICE([Will search for user supplied tool "$tool_basename"]) AC_PATH_PROGS($1, $tool_basename ${tool_basename}.exe) tool_command="[$]$1" if test "x$tool_command" = x; then AC_MSG_ERROR([User supplied tool $1="$tool_basename" could not be found in PATH]) fi else # Otherwise we believe it is a complete path. Use it as it is. if test ! -x "$tool_command" && test ! -x "${tool_command}.exe"; then # Maybe the path had spaces in it; try again with the entire argument if test ! -x "$tool_override" && test ! -x "${tool_override}.exe"; then AC_MSG_ERROR([User supplied tool $1="$tool_override" does not exist or is not executable]) else # We successfully located the executable assuming the spaces were part of the path. # We can't combine using paths with spaces and arguments, so assume tool_args is empty. tool_command="$tool_override" tool_args="" fi fi if test ! -x "$tool_command"; then tool_command="${tool_command}.exe" fi $1="$tool_command" fi # Make sure we add fixpath if needed UTIL_FIXUP_EXECUTABLE($1) if test "x$tool_args" != x; then # If we got arguments, re-append them to the command after the fixup. $1="[$]$1 $tool_args" fi AC_MSG_CHECKING([for $1]) AC_MSG_RESULT([[$]$1 [[user supplied]]]) fi fi $3 fi ]) ################################################################################ # Locate a tool using proper methods. # $1: variable to set # $2: executable name (or list of names) to look for # $3: [path] AC_DEFUN([UTIL_LOOKUP_PROGS], [ UTIL_SETUP_TOOL($1, [ $1="" if test "x$3" != x; then old_path="$PATH" PATH="$3" fi for name in $2; do AC_MSG_CHECKING(for $name) command_type=`type -t "$name"` if test "x$command_type" = xbuiltin || test "x$command_type" = xkeyword; then # Shell builtin or keyword; we're done here full_path="$name" $1="$full_path" AC_MSG_RESULT([[$full_path [builtin]]]) break else # Search in $PATH old_ifs="$IFS" IFS=":" for elem in $PATH; do IFS="$old_ifs" if test "x$elem" = x; then continue fi full_path="$elem/$name" if test ! -e "$full_path" && test "x$OPENJDK_BUILD_OS" = "xwindows"; then # Try again with .exe full_path="$elem/$name.exe" fi if test -x "$full_path" && test ! -d "$full_path" ; then $1="$full_path" UTIL_FIXUP_EXECUTABLE($1, $3, $4) result="[$]$1" # If we have FIXPATH enabled, strip all instances of it and prepend # a single one, to avoid double fixpath prefixing. [ if [[ $FIXPATH != "" && $result =~ ^"$FIXPATH " ]]; then ] result="\$FIXPATH ${result#"$FIXPATH "}" fi AC_MSG_RESULT([$result]) break 2; fi done IFS="$old_ifs" fi AC_MSG_RESULT([[[not found]]]) done if test "x$3" != x; then PATH="$old_path" fi ]) ]) ################################################################################ # Call UTIL_SETUP_TOOL with AC_CHECK_TOOLS to locate the tool. This will look # first for tools using the cross-compilation prefix, and then for tools without # this prefix. For each of these name variants, it will look first in the # toolchain path, and then in the normal path. # $1: variable to set # $2: executable name (or list of names) to look for AC_DEFUN([UTIL_LOOKUP_TOOLCHAIN_PROGS], [ if test "x$ac_tool_prefix" = x; then UTIL_LOOKUP_PROGS($1, $2, [$TOOLCHAIN_PATH:$PATH]) else prefixed_names=$(for name in $2; do echo ${ac_tool_prefix}${name} $name; done) UTIL_LOOKUP_PROGS($1, $prefixed_names, [$TOOLCHAIN_PATH:$PATH]) fi ]) ################################################################################ # Test that variable $1 denoting a program is not empty. If empty, exit with an error. # $1: variable to check AC_DEFUN([UTIL_CHECK_NONEMPTY], [ if test "x[$]$1" = x; then AC_MSG_ERROR([Could not find required tool for $1]) fi ]) ################################################################################ # Like UTIL_LOOKUP_PROGS but fails if no tool was found. # $1: variable to set # $2: executable name (or list of names) to look for # $3: [path] AC_DEFUN([UTIL_REQUIRE_PROGS], [ UTIL_LOOKUP_PROGS($1, $2, $3) UTIL_CHECK_NONEMPTY($1) ]) ################################################################################ # Like UTIL_LOOKUP_PROGS but fails if no tool was found. # $1: variable to set # $2: executable name (or list of names) to look for AC_DEFUN([UTIL_REQUIRE_TOOLCHAIN_PROGS], [ UTIL_LOOKUP_TOOLCHAIN_PROGS($1, $2) UTIL_CHECK_NONEMPTY($1) ]) ################################################################################ # Like UTIL_SETUP_TOOL but fails if no tool was found. # $1: variable to set # $2: autoconf macro to call to look for the special tool AC_DEFUN([UTIL_REQUIRE_SPECIAL], [ UTIL_SETUP_TOOL($1, [$2]) UTIL_CHECK_NONEMPTY($1) # The special macro will return an absolute path, and is only used for # unix tools. No further processing needed. ]) ################################################################################ # Add FIXPATH prefix to variable. Normally this is done by UTIL_LOOKUP_PROGS # or UTIL_FIXUP_EXECUTABLE, but in some circumstances this has to be done # explicitly, such as when the command in question does not exist yet. # # $1: variable to add fixpath to AC_DEFUN([UTIL_ADD_FIXPATH], [ if test "x$FIXPATH" != x; then $1="$FIXPATH [$]$1" fi ]) ################################################################################ # Return a path to the executable binary from a command line, stripping away # any FIXPATH prefix or arguments. The resulting value can be checked for # existence using "test -e". The result is returned in a variable named # "$1_EXECUTABLE". # # $1: variable describing the command to get the binary for AC_DEFUN([UTIL_GET_EXECUTABLE], [ # Strip the FIXPATH prefix, if any fixpath_stripped="[$]$1" [ if [[ $FIXPATH != "" && $fixpath_stripped =~ ^"$FIXPATH " ]]; then ] fixpath_stripped="${fixpath_stripped#"$FIXPATH "}" fi # Remove any arguments following the binary $1_EXECUTABLE="${fixpath_stripped%% *}" ]) ################################################################################ AC_DEFUN([UTIL_REMOVE_SYMBOLIC_LINKS], [ if test "x$OPENJDK_BUILD_OS" != xwindows; then # Follow a chain of symbolic links. Use readlink # where it exists, else fall back to horribly # complicated shell code. if test "x$READLINK_TESTED" != yes; then # On MacOSX there is a readlink tool with a different # purpose than the GNU readlink tool. Check the found readlink. READLINK_ISGNU=`$READLINK --version 2>&1 | $GREP GNU` # If READLINK_ISGNU is empty, then it's a non-GNU readlink. Don't use it. READLINK_TESTED=yes fi if test "x$READLINK" != x && test "x$READLINK_ISGNU" != x; then $1=`$READLINK -f [$]$1` else # Save the current directory for restoring afterwards STARTDIR=$PWD COUNTER=0 sym_link_dir=`$DIRNAME [$]$1` sym_link_file=`$BASENAME [$]$1` cd $sym_link_dir # Use -P flag to resolve symlinks in directories. cd `pwd -P` sym_link_dir=`pwd -P` # Resolve file symlinks while test $COUNTER -lt 20; do ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP -e '->' | $SED -e 's/.*-> \(.*\)/\1/'` if test "x$ISLINK" == x; then # This is not a symbolic link! We are done! break fi # Again resolve directory symlinks since the target of the just found # link could be in a different directory cd `$DIRNAME $ISLINK` sym_link_dir=`pwd -P` sym_link_file=`$BASENAME $ISLINK` let COUNTER=COUNTER+1 done cd $STARTDIR $1=$sym_link_dir/$sym_link_file fi fi ])