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From 3adadb568fbf15d952bd25a005b6a9afb7e59dc7 Mon Sep 17 00:00:00 2001
From: Pavel Raiskup <praiskup@redhat.com>
Date: Sun, 4 Oct 2015 21:55:03 +0200
Subject: libtool: mitigate the $sed_quote_subst slowdown
When it is reasonably possible, use shell implementation for
quoting.
References:
http://lists.gnu.org/archive/html/libtool/2015-03/msg00005.html
http://lists.gnu.org/archive/html/libtool/2015-02/msg00000.html
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=20006
* gl/build-aux/funclib.sh (func_quote): New function that can be
used as substitution for '$SED $sed_quote_subst' call.
* build-aux/ltmain.in (func_emit_wrapper): Use func_quote instead
of '$SED $sed_quote_subst'.
(func_mode_link): Likewise.
* NEWS: Document.
* bootstrap: Sync with funclib.sh.
(cherry picked from commit 32f0df9835ac15ac17e04be57c368172c3ad1d19)
(skipping NEWS change)
Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
--- a/bootstrap
+++ b/bootstrap
@@ -230,7 +230,7 @@ vc_ignore=
# Source required external libraries:
# Set a version string for this script.
-scriptversion=2015-01-20.17; # UTC
+scriptversion=2015-10-04.22; # UTC
# General shell script boiler plate, and helper functions.
# Written by Gary V. Vaughan, 2004
@@ -1257,6 +1257,57 @@ func_relative_path ()
}
+# func_quote ARG
+# --------------
+# Aesthetically quote one ARG, store the result into $func_quote_result. Note
+# that we keep attention to performance here (so far O(N) complexity as long as
+# func_append is O(1)).
+func_quote ()
+{
+ $debug_cmd
+
+ func_quote_result=$1
+
+ case $func_quote_result in
+ *[\\\`\"\$]*)
+ case $func_quote_result in
+ *'*'*|*'['*)
+ func_quote_result=`$ECHO "$func_quote_result" | $SED "$sed_quote_subst"`
+ return 0
+ ;;
+ esac
+
+ func_quote_old_IFS=$IFS
+ for _G_char in '\' '`' '"' '$'
+ do
+ # STATE($1) PREV($2) SEPARATOR($3)
+ set start "" ""
+ func_quote_result=dummy"$_G_char$func_quote_result$_G_char"dummy
+ IFS=$_G_char
+ for _G_part in $func_quote_result
+ do
+ case $1 in
+ quote)
+ func_append func_quote_result "$3$2"
+ set quote "$_G_part" "\\$_G_char"
+ ;;
+ start)
+ set first "" ""
+ func_quote_result=
+ ;;
+ first)
+ set quote "$_G_part" ""
+ ;;
+ esac
+ done
+ IFS=$func_quote_old_IFS
+ done
+ ;;
+ *) ;;
+ esac
+}
+
+
# func_quote_for_eval ARG...
# --------------------------
# Aesthetically quote ARGs to be evaled later.
@@ -1273,12 +1324,8 @@ func_quote_for_eval ()
func_quote_for_eval_unquoted_result=
func_quote_for_eval_result=
while test 0 -lt $#; do
- case $1 in
- *[\\\`\"\$]*)
- _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
- *)
- _G_unquoted_arg=$1 ;;
- esac
+ func_quote "$1"
+ _G_unquoted_arg=$func_quote_result
if test -n "$func_quote_for_eval_unquoted_result"; then
func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
else
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -3356,7 +3356,8 @@ else
if test \"\$libtool_execute_magic\" != \"$magic\"; then
file=\"\$0\""
- qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
+ func_quote "$ECHO"
+ qECHO=$func_quote_result
$ECHO "\
# A function that is used when there is no print builtin or printf.
@@ -8618,8 +8619,8 @@ EOF
relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
fi
done
- relink_command="(cd `pwd`; $relink_command)"
- relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+ func_quote "(cd `pwd`; $relink_command)"
+ relink_command=$func_quote_result
fi
# Only actually do things if not in dry run mode.
@@ -8865,7 +8866,8 @@ EOF
done
# Quote the link command for shipping.
relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
- relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+ func_quote "$relink_command"
+ relink_command=$func_quote_result
if test yes = "$hardcode_automatic"; then
relink_command=
fi
--- a/build-aux/funclib.sh
+++ b/build-aux/funclib.sh
@@ -1,5 +1,5 @@
# Set a version string for this script.
-scriptversion=2015-01-20.17; # UTC
+scriptversion=2015-10-04.22; # UTC
# General shell script boiler plate, and helper functions.
# Written by Gary V. Vaughan, 2004
@@ -1026,6 +1026,57 @@ func_relative_path ()
}
+# func_quote ARG
+# --------------
+# Aesthetically quote one ARG, store the result into $func_quote_result. Note
+# that we keep attention to performance here (so far O(N) complexity as long as
+# func_append is O(1)).
+func_quote ()
+{
+ $debug_cmd
+
+ func_quote_result=$1
+
+ case $func_quote_result in
+ *[\\\`\"\$]*)
+ case $func_quote_result in
+ *[\[\*\?]*)
+ func_quote_result=`$ECHO "$func_quote_result" | $SED "$sed_quote_subst"`
+ return 0
+ ;;
+ esac
+
+ func_quote_old_IFS=$IFS
+ for _G_char in '\' '`' '"' '$'
+ do
+ # STATE($1) PREV($2) SEPARATOR($3)
+ set start "" ""
+ func_quote_result=dummy"$_G_char$func_quote_result$_G_char"dummy
+ IFS=$_G_char
+ for _G_part in $func_quote_result
+ do
+ case $1 in
+ quote)
+ func_append func_quote_result "$3$2"
+ set quote "$_G_part" "\\$_G_char"
+ ;;
+ start)
+ set first "" ""
+ func_quote_result=
+ ;;
+ first)
+ set quote "$_G_part" ""
+ ;;
+ esac
+ done
+ IFS=$func_quote_old_IFS
+ done
+ ;;
+ *) ;;
+ esac
+}
+
+
# func_quote_for_eval ARG...
# --------------------------
# Aesthetically quote ARGs to be evaled later.
@@ -1042,12 +1093,8 @@ func_quote_for_eval ()
func_quote_for_eval_unquoted_result=
func_quote_for_eval_result=
while test 0 -lt $#; do
- case $1 in
- *[\\\`\"\$]*)
- _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
- *)
- _G_unquoted_arg=$1 ;;
- esac
+ func_quote "$1"
+ _G_unquoted_arg=$func_quote_result
if test -n "$func_quote_for_eval_unquoted_result"; then
func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
else
|
