build error by segmentation fault #52

MasahikoIto · 2012-04-25T14:50:13Z

$ cat /etc/slackware-version
Slackware 13.37.0

$ uname -a
Linux c760 3.1.10 #1 PREEMPT Thu Feb 16 01:18:19 JST 2012 armv5tel XScale-PXA255 rev 6 (v5l) SHARP Husky GNU/Linux

$ tar xvzf mruby-mruby-e26bf08.tar.gz
$ cd mruby-mruby-e26bf08
$ make

snip

gcc -o ../../bin/mrbc ../../src/../tools/mrbc/mrbc.o ../../src/transcode.o ../../src/state.o ../../src/string.o ../../src/ascii.o ../../src/unicode.o ../../src/cdump.o ../../src/
crc.o ../../src/struct.o ../../src/codegen.o ../../src/sprintf.o ../../src/init.o ../../src/kernel.o ../../src/us_ascii.o ../../src/gc.o ../../src/vm.o ../../src/regparse.o ../..
/src/class.o ../../src/etc.o ../../src/dump.o ../../src/re.o ../../src/regcomp.o ../../src/version.o ../../src/encoding.o ../../src/error.o ../../src/hash.o ../../src/regenc.o ..
/../src/object.o ../../src/utf_8.o ../../src/compar.o ../../src/proc.o ../../src/regexec.o ../../src/variable.o ../../src/range.o ../../src/pool.o ../../src/enum.o ../../src/nume
ric.o ../../src/array.o ../../src/regerror.o ../../src/print.o ../../src/symbol.o ../../src/st.o ../../src/y.tab.o -lm
make: built targets of /home/m-ito/tmp/mruby-mruby-e26bf08/tools/mrbc
cat struct.rb error.rb string.rb hash.rb compar.rb range.rb enum.rb numeric.rb kernel.rb array.rb print.rb > mrblib.rbtmp
../bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp; cat init_mrblib.c mrblib.ctmp > mrblib.c
/bin/sh: line 1: 14047 Segmentation fault ../bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp

snip

make: built targets of /home/m-ito/tmp/mruby-mruby-e26bf08/mrblib
gcc -o ../../bin/mruby ../../src/../tools/mruby/mruby.o ../../src/transcode.o ../../src/unicode.o ../../src/crc.o ../../src/struct.o ../../src/us_ascii.o ../../src/proc.o ../../s
rc/pool.o ../../src/regenc.o ../../src/load.o ../../src/ascii.o ../../src/version.o ../../src/hash.o ../../src/utf_8.o ../../src/codegen.o ../../src/range.o ../../src/enum.o ../.
./src/regerror.o ../../src/symbol.o ../../src/object.o ../../src/state.o ../../src/vm.o ../../src/print.o ../../src/sprintf.o ../../src/init.o ../../src/numeric.o ../../src/error
.o ../../src/regparse.o ../../src/init_ext.o ../../src/class.o ../../src/etc.o ../../src/string.o ../../src/regcomp.o ../../src/kernel.o ../../src/encoding.o ../../src/compar.o .
./../src/regexec.o ../../src/variable.o ../../src/re.o ../../src/array.o ../../src/gc.o ../../src/st.o ../../src/y.tab.o ../../src/../mrblib/mrblib.o -lm
../../src/../mrblib/mrblib.o: In function mrb_init_mrblib': /home/m-ito/tmp/mruby-mruby-e26bf08/mrblib/mrblib.c:16: undefined reference tomrblib_irep'
collect2: ld returned 1 exit status
make[1]: *** [../../bin/mruby] Error 1
make: *** [src/init_ext.o] Error 2

$ cd mrblib/
$ ../bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp
Segmentation fault

$ gdb ../bin/mrbc
GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "arm-slackware-linux-gnueabi".
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from /home/m-ito/tmp/mruby-mruby-e26bf08/bin/mrbc...done.
(gdb) run -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp
Starting program: /home/m-ito/tmp/mruby-mruby-e26bf08/bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp

Program received signal SIGSEGV, Segmentation fault.
0x000ab7ec in parser_yylex (p=0x11c8f0) at ../../src/parse.y:4451
4451 if (!identchar(c)) {
(gdb) list
4446 case '_':
4447 token_column = newtok(p);
4448 break;
4449
4450 default:
4451 if (!identchar(c)) {
4452 yyerror_i(p, "Invalid char `\x%02X' in expression", c);
4453 goto retry;
4454 }
4455
(gdb) p c
$1 = 2686976
(gdb) quit
A debugging session is active.

    Inferior 1 [process 14086] will be killed.

Quit anyway? (y or n) y

What can I do ?

The text was updated successfully, but these errors were encountered:

matz · 2012-05-17T03:59:19Z

Can you still reproduce the error?

MasahikoIto · 2012-06-24T14:41:05Z

Now I'm compiling from newest source on ARMedslack-13.1 on SL-C860 :)

MasahikoIto · 2012-06-24T15:36:17Z

Almost same error :(

gcc -Wall -Werror-implicit-function-declaration -g -O3 -MMD -I. -I./../include -c vm.c -o vm.o
bison -o ./y.tab.c ./parse.y
gcc -Wall -Werror-implicit-function-declaration -g -O3 -MMD -I. -I./../include -c ./y.tab.c -o ./y.tab.o
ar r ../lib/libmruby_core.a ./array.o ./cdump.o ./class.o ./codegen.o ./compar.o ./crc.o ./dump.o ./enum.o ./error.o ./etc.o ./gc.o ./hash.o ./init.o ./init_ext.o ./kernel.o ./load.o ./math.o ./numeric.o ./object.o ./pool.o ./print.o ./proc.o ./range.o ./re.o ./regcomp.o ./regenc.o ./regerror.o ./regexec.o ./regparse.o ./sprintf.o ./st.o ./state.o ./string.o ./struct.o ./symbol.o ./time.o ./variable.o ./vm.o ./y.tab.o
ar: creating ../lib/libmruby_core.a
cat ./.rb > mrblib.rbtmp
make -C ../tools/mrbc CC='gcc' LL='gcc' ALL_CFLAGS='-Wall -Werror-implicit-function-declaration -g -O3'
gcc -Wall -Werror-implicit-function-declaration -g -O3 -MMD -I../../src -I../../src/../include -c ../../src/../tools/mrbc/mrbc.c -o ../../src/../tools/mrbc/mrbc.o
gcc -o ../../bin/mrbc ../../src/../tools/mrbc/mrbc.o ../../lib/libmruby_core.a -lm
../bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp; cat init_mrblib.c mrblib.ctmp > mrblib.c
/bin/sh: line 1: 13844 Segmentation fault ../bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp
gcc -Wall -Werror-implicit-function-declaration -g -O3 -MMD -I../src -I../include -c mrblib.c -o mrblib.o
cp ../lib/libmruby_core.a ../lib/libmruby.a
ar r ../lib/libmruby.a mrblib.o
gcc -Wall -Werror-implicit-function-declaration -g -O3 -MMD -I../../src -I../../src/../include -c ../../src/../tools/mruby/mruby.c -o ../../src/../tools/mruby/mruby.o
gcc -o ../../bin/mruby -g -O3 ../../src/../tools/mruby/mruby.o ../../lib/libmruby.a -lm
../../lib/libmruby.a(mrblib.o): In function mrb_init_mrblib': /home/m-ito/tmp/mruby-mruby-bf747ef/mrblib/mrblib.c:16: undefined reference tomrblib_irep'
collect2: ld returned 1 exit status
make[1]: ** [../../bin/mruby] Error 1
make: *** [all] Error 2
10004 m-ito@c860:~/tmp/mruby-mruby-bf747ef$

matz · 2012-06-24T20:52:28Z

I've notice the line "cat ./.rb > mrblib.rbtmp". It should be "cat ./*.rb > mrblib.rbtmp"
Does your shell have any issue to expand wild card?

Besides that, the biggest problem is SEGV from mrbc. Is there any way to get backtrace?

MasahikoIto · 2012-06-25T03:28:12Z

Sorry, It exactly performed "cat ./.rb > mrblib.rbtmp". I'm not sure, but Github system might delete "" from my cut&paste to avoid something cracking?

BTW, What do you mean "backtrace"? I can do "gdb" or "strace". Which one do you need? or Do you need to perform another tool?

Thanx!

MasahikoIto · 2012-06-25T03:40:32Z

Now I understood that I should post like "cat ./*.rb ..." :P

matz · 2012-06-25T06:11:33Z

You can do "gdb"! That's good news.
Please try following:

$ cd mrblib
$ .run ./bin/mrbc
(gdb) run -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp
segmentation fault
(gdb) where

I want to see the output from "where" command.

MasahikoIto · 2012-06-25T10:49:27Z

10132 m-ito@c860:/tmp/mruby-mruby-bf747ef$ export LC_ALL=C
10133 m-ito@c860:/tmp/mruby-mruby-bf747ef$ cd mrblib
10134 m-ito@c860:~/tmp/mruby-mruby-bf747ef/mrblib$ gdb ../bin/mrbc
GNU gdb (GDB) 7.1
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "arm-slackware-linux-gnueabi".
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from /home/m-ito/tmp/mruby-mruby-bf747ef/bin/mrbc...done.
(gdb) run -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp
Starting program: /home/m-ito/tmp/mruby-mruby-bf747ef/bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp

Program received signal SIGSEGV, Segmentation fault.
0x0002c56c in parser_yylex (p=0x7afd0) at ./parse.y:4481
4481 if (!identchar(c)) {
(gdb) where
#0 0x0002c56c in parser_yylex (p=0x7afd0) at ./parse.y:4481
#1 yylex (p=0x7afd0) at ./parse.y:4637
#2 yyparse (p=0x7afd0) at ./y.tab.c:4961
#3 0x000325fc in mrb_parser_parse (p=) at ./parse.y:4659
#4 0x00032864 in mrb_parse_file (mrb=0x69008, f=0x752f0) at ./parse.y:4743
#5 0x00009568 in main (argc=, argv=0xbeffec94) at ../../src/../tools/mrbc/mrbc.c:175
(gdb) quit
A debugging session is active.

    Inferior 1 [process 27327] will be killed.

Quit anyway? (y or n) y
10135 m-ito@c860:~/tmp/mruby-mruby-bf747ef/mrblib$

matz · 2012-06-26T03:33:11Z

Thank you. One more request.
Can I see the value of c at the point of segv?
It can be seen by

(gdb) p c

please?

MasahikoIto · 2012-06-26T12:43:39Z

9999 m-ito@c860:~/tmp/mruby-mruby-bf747ef/mrblib$ gdb ../bin/mrbc
GNU gdb (GDB) 7.1
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "arm-slackware-linux-gnueabi".
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from /home/m-ito/tmp/mruby-mruby-bf747ef/bin/mrbc...done.
(gdb) run -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp
Starting program: /home/m-ito/tmp/mruby-mruby-bf747ef/bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp

Program received signal SIGSEGV, Segmentation fault.
0x0002c56c in parser_yylex (p=0x7afd0) at ./parse.y:4481
4481 if (!identchar(c)) {
(gdb) p c
$1 =
(gdb)

Should I use "-O0" for building mruby? or
Should I change "register int c" to "int c" in ../src/parse.y? or
Should I do printf debug in ../src/parse.y to see value of "c"?

matz · 2012-06-26T15:33:54Z

I think -O0 will make it printable. Could try again?

monaka · 2012-06-27T07:18:32Z

This comment is just a reference.

I'm trying ARM bare metal target (not the target of this issue) and have some issues about parser.y
I got debugger log like this.

Breakpoint 4, parser_yylex (p=0xab158) at parse.y:4481
4481        if (!identchar(c)) {
1: /c c = 0 '\000'

I think c should be positive value always.

monaka · 2012-06-27T12:30:47Z

I'm not sure ... but.
As I wrote in #331 #333, It's possible this is caused by address alignment.

It will be fixed by adding '#define ALLOC_ALIGN 4' on the top of src/pool.c, when this issue is as same as I encountered.

MasahikoIto · 2012-06-27T13:29:17Z

(gdb) run -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp
Starting program: /home/m-ito/tmp/mruby-mruby-bf747ef/bin/mrbc -Bmrblib_irep -omrblib.ctmp mrblib.rbtmp

Program received signal SIGSEGV, Segmentation fault.
0x0003c5e0 in parser_yylex (p=0x8afd0) at ./parse.y:4481
4481 if (!identchar(c)) {
(gdb) p c
$1 = 6422528
(gdb)

MasahikoIto · 2012-06-27T16:10:54Z

I put "#define ALLOC_ALIGN 4" in src/pool.c and do "make && make test" and I succeed to build mruby!

10023 m-ito@c860:~/tmp/mruby-mruby-bf747ef$ LC_ALL=C make test
make[1]: Nothing to be done for all'. make[1]: Nothing to be done forall'.
make[1]: Nothing to be done for all'. make[1]: Nothing to be done forall'.
./mrbtest
mrbtest - Embeddable Ruby Test

This is a very early version, please test and report errors.
Thanks :)

........................................................................................
........................................................................................
........................................................................................
........................................................................................
........................................................................................
......
Total: 446
OK: 446
KO: 0
Crash: 0
Time: 0.188898 seconds
10024 m-ito@c860:~/tmp/mruby-mruby-bf747ef$

Thanx so much matz & monaka :D

MasahikoIto closed this as completed Jun 28, 2012

monaka mentioned this issue Jun 28, 2012

Add ALLOC_ALIGN support. #333

Closed

niubl mentioned this issue Mar 12, 2017

Heap buffer overflow #3502

Closed

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build error by segmentation fault #52

build error by segmentation fault #52

MasahikoIto commented Apr 25, 2012

matz commented May 17, 2012

MasahikoIto commented Jun 24, 2012

MasahikoIto commented Jun 24, 2012

matz commented Jun 24, 2012

MasahikoIto commented Jun 25, 2012

MasahikoIto commented Jun 25, 2012

matz commented Jun 25, 2012

MasahikoIto commented Jun 25, 2012

matz commented Jun 26, 2012

MasahikoIto commented Jun 26, 2012

matz commented Jun 26, 2012

monaka commented Jun 27, 2012

monaka commented Jun 27, 2012

MasahikoIto commented Jun 27, 2012

MasahikoIto commented Jun 27, 2012

build error by segmentation fault #52

build error by segmentation fault #52

Comments

MasahikoIto commented Apr 25, 2012

matz commented May 17, 2012

MasahikoIto commented Jun 24, 2012

MasahikoIto commented Jun 24, 2012

matz commented Jun 24, 2012

MasahikoIto commented Jun 25, 2012

MasahikoIto commented Jun 25, 2012

matz commented Jun 25, 2012

MasahikoIto commented Jun 25, 2012

matz commented Jun 26, 2012

MasahikoIto commented Jun 26, 2012

matz commented Jun 26, 2012

monaka commented Jun 27, 2012

monaka commented Jun 27, 2012

MasahikoIto commented Jun 27, 2012

MasahikoIto commented Jun 27, 2012