Re: java/4717: miscompiling class reference

Re: java/4717: miscompiling class reference

[bryce]

Synopsis: miscompiling class reference

Responsible-Changed-From-To: unassigned->bryce
Responsible-Changed-By: bryce
Responsible-Changed-When: Tue Oct 30 23:51:16 2001
Responsible-Changed-Why:
    !
State-Changed-From-To: open->closed
State-Changed-By: bryce
State-Changed-When: Tue Oct 30 23:51:16 2001
State-Changed-Why:
    Fixed checked in.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=4717&database=gcc

java/4717: miscompiling class reference

[Anthony Green]

>Number:         4717
>Category:       java
>Synopsis:       miscompiling class reference
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Sun Oct 28 04:56:02 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Anthony Green
>Release:        3.1 20011024 (experimental)
>Organization:
>Environment:
System: Linux fencer.cygnus.com 2.2.12-20smp #1 SMP Mon Sep 27 10:34:45 EDT 1999 i686 unknown
Architecture: i686

	
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: /fencer/cutlass/aph/green/trunk/gcc/configure --prefix=/fencer/cutlass/aph/green/trunk/i --enable-threads --enable-languages=c,c++,java --with-languages=c,c++,java : (reconfigured) 
>Description:
	The shar file below has two classes: a.b.Foo and z.b.c.Bar.

	Every reference to a.b.Foo in z.b.c.Bar is being turned into a
reference to the non-existant class z.b.Foo.  This problem makes it
impossible to link, for instance, the gtk peers in gnu.awt.gtk.

>How-To-Repeat:
unshar and run make

#!/bin/sh
# This is a shell archive (produced by GNU sharutils 4.2.1).
# To extract the files from this archive, save it to some FILE, remove
# everything before the `!/bin/sh' line above, then type `sh FILE'.
#
# Made on 2001-10-28 04:36 PST by <green@localhost.localdomain>.
# Source directory was `/tmp/t'.
#
# Existing files will *not* be overwritten unless `-c' is specified.
#
# This shar contains:
# length mode       name
# ------ ---------- ------------------------------------------
#     88 -rw-rw-r-- Makefile
#     45 -rw-rw-r-- a/b/Foo.java
#    204 -rw-rw-r-- z/b/c/Bar.java
#
save_IFS="${IFS}"
IFS="${IFS}:"
gettext_dir=FAILED
locale_dir=FAILED
first_param="$1"
for dir in $PATH
do
  if test "$gettext_dir" = FAILED && test -f $dir/gettext \
     && ($dir/gettext --version >/dev/null 2>&1)
  then
    set `$dir/gettext --version 2>&1`
    if test "$3" = GNU
    then
      gettext_dir=$dir
    fi
  fi
  if test "$locale_dir" = FAILED && test -f $dir/shar \
     && ($dir/shar --print-text-domain-dir >/dev/null 2>&1)
  then
    locale_dir=`$dir/shar --print-text-domain-dir`
  fi
done
IFS="$save_IFS"
if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED
then
  echo=echo
else
  TEXTDOMAINDIR=$locale_dir
  export TEXTDOMAINDIR
  TEXTDOMAIN=sharutils
  export TEXTDOMAIN
  echo="$gettext_dir/gettext -s"
fi
if touch -am -t 200112312359.59 $$.touch >/dev/null 2>&1 && test ! -f 200112312359.59 -a -f $$.touch; then
  shar_touch='touch -am -t $1$2$3$4$5$6.$7 "$8"'
elif touch -am 123123592001.59 $$.touch >/dev/null 2>&1 && test ! -f 123123592001.59 -a ! -f 123123592001.5 -a -f $$.touch; then
  shar_touch='touch -am $3$4$5$6$1$2.$7 "$8"'
elif touch -am 1231235901 $$.touch >/dev/null 2>&1 && test ! -f 1231235901 -a -f $$.touch; then
  shar_touch='touch -am $3$4$5$6$2 "$8"'
else
  shar_touch=:
  echo
  $echo 'WARNING: not restoring timestamps.  Consider getting and'
  $echo "installing GNU \`touch', distributed in GNU File Utilities..."
  echo
fi
rm -f 200112312359.59 123123592001.59 123123592001.5 1231235901 $$.touch
#
if mkdir _sh18081; then
  $echo 'x -' 'creating lock directory'
else
  $echo 'failed to create lock directory'
  exit 1
fi
# ============= Makefile ==============
if test -f 'Makefile' && test "$first_param" != -c; then
  $echo 'x -' SKIPPING 'Makefile' '(file already exists)'
else
  $echo 'x -' extracting 'Makefile' '(gzipped)'
  sed 's/^X//' << 'SHAR_EOF' | uudecode &&
begin 600 _sh18081/gzi
M'XL(`$W[VSL"`RM)+2ZQXN),3\Y2T$U6J-)/TD_6=THLTLM*+$M4T,U7`+'S
MN3CS<B$LA1J%]*+4`@6W?!`S65L[+3.GA(LK.2<U,0]H3!%4&1<7`(%)]:]8
#````
`
end
SHAR_EOF
  $echo 'gunzipping file' 'Makefile' &&
  gzip -d < _sh18081/gzi > 'Makefile' &&
  (set 20 01 10 28 04 34 21 'Makefile'; eval "$shar_touch") &&
  chmod 0664 'Makefile' ||
  $echo 'restore of' 'Makefile' 'failed'
  if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
  && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
    md5sum -c << SHAR_EOF >/dev/null 2>&1 \
    || $echo 'Makefile:' 'MD5 check failed'
b52c408e60577fb0e6a4645261ff815f  Makefile
SHAR_EOF
  else
    shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'Makefile'`"
    test 88 -eq "$shar_count" ||
    $echo 'Makefile:' 'original size' '88,' 'current size' "$shar_count!"
  fi
fi
# ============= a/b/Foo.java ==============
if test ! -d 'a'; then
  $echo 'x -' 'creating directory' 'a'
  mkdir 'a'
fi
if test ! -d 'a/b'; then
  $echo 'x -' 'creating directory' 'a/b'
  mkdir 'a/b'
fi
if test -f 'a/b/Foo.java' && test "$first_param" != -c; then
  $echo 'x -' SKIPPING 'a/b/Foo.java' '(file already exists)'
else
  $echo 'x -' extracting 'a/b/Foo.java' '(gzipped)'
  sed 's/^X//' << 'SHAR_EOF' | uudecode &&
begin 600 _sh18081/gzi
M'XL(`+CYVSL"`RM(3,Y.3$]52-1+LN;B*BA-RLE,5DC.22PN5G#+SU?@JN92
44,C,*U&HL.:JY0(`?E!ZQRT```!+
`
end
SHAR_EOF
  $echo 'gunzipping file' 'a/b/Foo.java' &&
  gzip -d < _sh18081/gzi > 'a/b/Foo.java' &&
  (set 20 01 10 28 04 27 36 'a/b/Foo.java'; eval "$shar_touch") &&
  chmod 0664 'a/b/Foo.java' ||
  $echo 'restore of' 'a/b/Foo.java' 'failed'
  if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
  && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
    md5sum -c << SHAR_EOF >/dev/null 2>&1 \
    || $echo 'a/b/Foo.java:' 'MD5 check failed'
251c49a61e8c8a1f8da00db5cccfd1b6  a/b/Foo.java
SHAR_EOF
  else
    shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'a/b/Foo.java'`"
    test 45 -eq "$shar_count" ||
    $echo 'a/b/Foo.java:' 'original size' '45,' 'current size' "$shar_count!"
  fi
fi
# ============= z/b/c/Bar.java ==============
if test ! -d 'z'; then
  $echo 'x -' 'creating directory' 'z'
  mkdir 'z'
fi
if test ! -d 'z/b'; then
  $echo 'x -' 'creating directory' 'z/b'
  mkdir 'z/b'
fi
if test ! -d 'z/b/c'; then
  $echo 'x -' 'creating directory' 'z/b/c'
  mkdir 'z/b/c'
fi
if test -f 'z/b/c/Bar.java' && test "$first_param" != -c; then
  $echo 'x -' SKIPPING 'z/b/c/Bar.java' '(file already exists)'
else
  $echo 'x -' extracting 'z/b/c/Bar.java' '(gzipped)'
  sed 's/^X//' << 'SHAR_EOF' | uudecode &&
begin 600 _sh18081/gzi
M'XL(`*#ZVSL"`X6-O1+"(!"$>YYBRVA!1MMT%CZ!+W"02V0DP`"QB..[>_A3
MV]S.SGZWF\C>:&9LVF@[*.66%',%B=V+3:OQSL)Z*@4GRNJA@+['Y<J%D7GB
MS,%R08WOGW,4S0S#+LRP<4G.\P@7)-\^N9:&;VVI5$6"W#LW"(;&`[K6,NV&
2/^`1W6^RP4_U`C>Z]^+,````
`
end
SHAR_EOF
  $echo 'gunzipping file' 'z/b/c/Bar.java' &&
  gzip -d < _sh18081/gzi > 'z/b/c/Bar.java' &&
  (set 20 01 10 28 04 31 28 'z/b/c/Bar.java'; eval "$shar_touch") &&
  chmod 0664 'z/b/c/Bar.java' ||
  $echo 'restore of' 'z/b/c/Bar.java' 'failed'
  if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
  && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
    md5sum -c << SHAR_EOF >/dev/null 2>&1 \
    || $echo 'z/b/c/Bar.java:' 'MD5 check failed'
1474ab0c6fd4fe1433f4be35204ec981  z/b/c/Bar.java
SHAR_EOF
  else
    shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'z/b/c/Bar.java'`"
    test 204 -eq "$shar_count" ||
    $echo 'z/b/c/Bar.java:' 'original size' '204,' 'current size' "$shar_count!"
  fi
fi
rm -fr _sh18081
exit 0

>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted: