'1019 snapshot ICE on alpha-dec-osf4.0e compiling gcc/libgcc2.c(_lshrdi3)
Brown, Rodney
rodneybrown@pmsc.com
Tue Oct 19 21:47:00 GMT 1999
Title: '1019 snapshot ICE on alpha-dec-osf4.0e compiling gcc/libgcc2.c(_lshrdi3)
Script started on Wed Oct 20 14:35:09 1999
sh-2.03$ perl ../ice.pl build.log
 ./xgcc -B/usr/local/alpha-dec-osf4.0e/bin/ -B./ -I/usr/local/alpha-dec-osf4.0e/include -O2  -DIN_GCC   -g -W -Wall -I./include  -g1 -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I../../egcs-19991019/gcc -I../../egcs-19991019/gcc/config -I../../egcs-19991019/gcc/../include -c -DL${name} \
     -DUSE_COLLECT2 ../../egcs-19991019/gcc/libgcc2.c -o ${name}.o; \
 if [ $? -eq 0 ] ; then true; else exit 1; fi; \
 ar rc tmplibgcc2.a ${name}.o; \
 rm -f ${name}.o; \
done
_muldi3
_divdi3
_moddi3
_udivdi3
_umoddi3
_negdi2
_lshrdi3
xgcc: Internal compiler error: program cc1 got fatal signal 11
make[4]: *** [libgcc2.a] Error 1
make[4]: Leaving directory `/user/rand/rdb/src/egcs-19991019.obj/gcc'
make[3]: *** [stmp-multilib-sub] Error 2
make[3]: Leaving directory `/user/rand/rdb/src/egcs-19991019.obj/gcc'
make[2]: *** [stmp-multilib] Error 1
make[2]: Leaving directory `/user/rand/rdb/src/egcs-19991019.obj/gcc'
 ./cc1 libgcc2.i -quiet -dumpbase libgcc2.c -g -g1 -O2 -W -Wall -version -o libgcc2.s
GNU C version 2.96 19991019 (experimental) (alpha-dec-osf4.0e) compiled by GNU C version egcs-2.91.66 19990314 (egcs-1.1.2 release).
xgcc: Internal compiler error: program cc1 got fatal signal 11
Breakpoint 1 at 0x3ff800e03a0
Breakpoint 2 at 0x1200f2e58: file ../../egcs-19991019/gcc/rtl.c, line 1145.
Breakpoint 3 at 0x3ff80175210
GNU C version 2.96 19991019 (experimental) (alpha-dec-osf4.0e) compiled by GNU C version egcs-2.91.66 19990314 (egcs-1.1.2 release).
Program received signal SIGSEGV, Segmentation fault.
0x12018c60c in mark_set_1 (needed=0x11fffd940, dead=0x11fffd878, x=0x9f400,
   insn=0xebac0, significant=0x0, flags=1)
   at ../../egcs-19991019/gcc/flow.c:3931
3931           register int blocknum = BLOCK_NUM (insn);
#0 0x12018c60c in mark_set_1 (needed=0x11fffd940, dead=0x11fffd878,
   x=0x9f400, insn=0xebac0, significant=0x0, flags=1)
   at ../../egcs-19991019/gcc/flow.c:3931
#1 0x12018bfb0 in mark_set_regs (needed=0x11fffd940, dead=0x11fffd878,
   x=0x9f400, insn=0xebac0, significant=0x0, flags=1)
   at ../../egcs-19991019/gcc/flow.c:3769
#2 0x12018b000 in propagate_block (old=0x11fffd940, first=0xeb280,
   last=0xe6c80, significant=0x0, bnum=2, flags=1)
   at ../../egcs-19991019/gcc/flow.c:3391
#3 0x120188184 in update_life_info (blocks=0x140064a80,
   extent=UPDATE_LIFE_GLOBAL_RM_NOTES) at ../../egcs-19991019/gcc/flow.c:2578
#4 0x120196334 in combine_instructions (f=0xeacc0, nregs=106)
   at ../../egcs-19991019/gcc/combine.c:699
#5 0x12003038c in rest_of_compilation (decl=0xe9200)
---Type <return> to continue, or q <return> to quit---
   at ../../egcs-19991019/gcc/toplev.c:4037
#6 0x1202aecc4 in finish_function (nested=0)
   at ../../egcs-19991019/gcc/c-decl.c:6715
#7 0x120293374 in yyparse () at c-parse.y:314
#8 0x12002df28 in compile_file (name=0x332b0 "libgcc2.i")
   at ../../egcs-19991019/gcc/toplev.c:3200
#9 0x120033e30 in main (argc=13, argv=0x11ffffcc8)
   at ../../egcs-19991019/gcc/toplev.c:5552
3926        /* Additional data to record if this is the final pass. */
3927        if (flags & (PROP_LOG_LINKS | PROP_REG_INFO
3928                   | PROP_DEATH_NOTES | PROP_AUTOINC))
3929          {
3930           register rtx y;
3931           register int blocknum = BLOCK_NUM (insn);
3932  ÂÂ
3933           y = NULL_RTX;
3934           if (flags & (PROP_LOG_LINKS | PROP_AUTOINC))
3935             y = reg_next_use[regno];
(gdb) c
Continuing.
Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
script done on Wed Oct 20 14:35:54 1999
revised ice.pl
ÂÂ
ice.pl
-------------- next part --------------
# Parse egcs snapshot build.log files for an Internal Compiler Error
# re-run failing compilation with -v -save-temps
# then run the failing gcc subprocess under gdb with a breakpoint at
# the point of the Internal Compiler Error
# Assumes in the snapshot.obj directory
use Cwd;
sub ccv_gdb {
if ($ccv_output[0] =~ /^\s*(\S+)(\s.*)$/) {
my($exe, $cmd_args) = ($1, $2);
my($i, $break_loc, $do_break);
for ($i = $#ccv_output;
$i > 0 && $ccv_output[$i] !~ /^\S+: Internal compiler error[ :]/;
$i--) {
}
if ($ccv_output[$i] =~
/^\S+: Internal compiler error(?: in `\S+', at (\S+:\d+)|: .*)$/) {
my($break_loc);
$break_loc = $1 if defined($1);
open GDB_ICE, ">gdb.ice.$$"
or "open gdb.ice.$$ failed $!";
if (!(-f '.gdbinit') && $exe =~ m|^(.*/)[^/]+$|) {
open GCC_GDBINIT, "$obj_dir/gcc/.gdbinit"
or die "open $obj_dir/gcc/.gdbinit failed $!";
while (<GCC_GDBINIT>) {
print GDB_ICE "dir $obj_dir/gcc/$1\n"
if /^dir (.{2,})\n$/;
}
close GCC_GDBINIT;
}
print GDB_ICE "delete\n";
print GDB_ICE "break $break_loc\n" if defined($break_loc);
print GDB_ICE "run $cmd_args\n";
print GDB_ICE "bt\nl\n";
close GDB_ICE;
# Run gdb on the relevant gcc subprocess,
# breaking only at the point of the ICE
system("gdb -q -x gdb.ice.$$ $exe\n");
unlink "gdb.ice.$$";
}
}
}
$obj_dir = cwd();
while (<>) {
if (/^(stage\d|\S+| \.)\/xgcc\s/) {
$#cc_output = -1;
$cc_seen = 1;
}
if ($cc_seen) {
push @cc_output, $_;
$ICE_seen = 1 if /^\S+: Internal compiler error[ :]/;
if ($ICE_seen && /^make\[2\]: Leaving directory `([^']+)'$/) {
$cc_dir = $1;
# Should do better, wrapping long lines etc here
print @cc_output;
if (chdir $cc_dir) {
my($tmp, $i);
$tmp = $cc_output[0];
$tmp =~ s/^\s*(\S+\s)/$1-v -save-temps /;
if ($tmp =~ /\\\s*\n$/) {
for ($i = 1; $i < $#cc_output; $i++) {
$tmp =~ s/\\\s*\n/ /;
$tmp .= $cc_output[$i];
last if $tmp !~ /\\\s*\n$/;
}
}
chop($tmp);
if ($tmp =~ /\$\{name\}\s.*\/gcc\/libgcc2\.c\s/) {
for ($i = $#cc_output - 2;
$i > 0 && $cc_output[$i] !~ /^_\w+\n$/;
$i--) {
}
if ($i > 0) {
my($name) = $cc_output[$i];
chop($name);
$tmp =~ s/\$\{name\}/$name/g;
$tmp =~ s/;.*$//;
}
}
$tmp = $tmp . ' 2>&1 |';
#print $cc_dir, "\t", $tmp, "\n";
open CC_V, $tmp or die "pipe from $tmp failed $!";
while ($l = <CC_V>) {
if ($l =~ /^ ((?:stage\d|\S+)\/\w+)\s/ && -f $1 && -x $1) {
$#ccv_output = -1;
$ccv_seen = 1;
}
if ($ccv_seen) {
push @ccv_output, $l;
if ($l =~ /^Please submit a full bug report\.\n/) {
# Should do better, wrapping long lines etc here
print "\n\n", @ccv_output;
undef $ccv_seen;
&ccv_gdb;
}
}
}
if (defined($ccv_seen)) {
print "\n\n", @ccv_output;
&ccv_gdb;
}
}
}
}
}
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