# New Ticket Created by Will Coleda
# Please include the string: [perl #57474]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=57474 >
Running `parrot_debugger` over the tcl library code generates either a
segfault or a crash, depending.
>From inside the tcl directory, after building parrot_debugger and tcl:
$ ../../parrot_debugger tcl.pbc
Parrot Debugger 0.4.x
Please note: the debugger is currently under reconstruction
Segmentation fault
(gdb) bt
#0 0xb7c18796 in PDB_disassemble_op (interp=0x804b008, dest=0x83aa5eb "",
space=58917, info=0x21694180, op=0xb7abc160, file=0x839f780,
code_start=0x0, full_name=1) at src/debug.c:1709
#1 0xb7c1958a in PDB_disassemble (interp=0x804b008, command_unused=0x0)
at src/debug.c:2033
#2 0xb7c1cade in Parrot_debug (debugger=0x8202d88, pc=0xb7acd11c)
at src/embed.c:982
#3 0xb7c615cf in runops_slow_core (interp=0x804b008, pc=0xb7acd11c)
at src/runops_cores.c:212
#4 0xb7c33626 in runops_int (interp=0x804b008, offset=3)
at src/interpreter.c:918
#5 0xb7c33f57 in runops (interp=0x804b008, offs=3) at src/inter_run.c:106
#6 0xb7c341ea in runops_args (interp=0x804b008, sub=0x81cedd8, obj=0x8099a78,
meth_unused=0x0, sig=0xb7e906c3 "vP", ap=0xbf9067bc "´p:\b¸h\220¿P\034ô·")
at src/inter_run.c:232
#7 0xb7c3432c in Parrot_runops_fromc_args (interp=0x804b008, sub=0x81cedd8,
sig=0xb7e906c3 "vP") at src/inter_run.c:301
#8 0xb7c1ca67 in Parrot_runcode (interp=0x804b008, argc=0, argv=0xbf9069bc)
at src/embed.c:950
#9 0x0804917a in PDB_run_code (interp=0x804b008, argc=1, argv=0xbf9069b8)
at src/parrot_debugger.c:231
#10 0x080490a1 in main (argc=2, argv=0xbf9069b4) at src/parrot_debugger.c:203
---
When running this from the top level build directory, I get a different error:
$ ./parrot_debugger languages/tcl/tcl.pbc
Parrot Debugger 0.4.x
Please note: the debugger is currently under reconstruction
(pdb) run
Restarting
Restarting
*** glibc detected *** ./parrot_debugger: free(): invalid pointer:
0xb6e77190 ***
======= Backtrace: =========
/lib/i686/nosegneg/libc.so.6[0xb6d96415]
/lib/i686/nosegneg/libc.so.6(cfree+0x90)[0xb6d99ef0]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(mem_sys_free+0x23)[0xb7be49a3]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bd689e]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bd6491]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(Parrot_debug+0x6e)[0xb7bd9ade]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7c1e5cf]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bf0626]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bf0f57]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bf11ea]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(Parrot_runops_fromc_args+0x4c)[0xb7bf132c]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7c13a85]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7c13bd4]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(do_sub_pragmas+0x12a)[0xb7c13f5a]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7c1848a]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(Parrot_load_bytecode+0x172)[0xb7c18612]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(Parrot_load_bytecode_sc+0x3c)[0xb7b7a17c]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bd4b62]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bd3e04]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(Parrot_debug+0x96)[0xb7bd9b06]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7c1e5cf]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bf0626]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bf0f57]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4[0xb7bf11ea]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(Parrot_runops_fromc_args+0x4c)[0xb7bf132c]
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4(Parrot_runcode+0x277)[0xb7bd9a67]
./parrot_debugger[0x804917a]
./parrot_debugger[0x80490a1]
/lib/i686/nosegneg/libc.so.6(__libc_start_main+0xe0)[0xb6d40450]
./parrot_debugger[0x8048d11]
======= Memory map: ========
08048000-0804a000 r-xp 00000000 08:03 1015863
/home/coke/sandbox/parrot/parrot_debugger
0804a000-0804b000 rwxp 00001000 08:03 1015863
/home/coke/sandbox/parrot/parrot_debugger
0804b000-084f4000 rwxp 0804b000 00:00 0 [heap]
b6300000-b6321000 rwxp b6300000 00:00 0
b6321000-b6400000 ---p b6321000 00:00 0
b6499000-b665c000 rwxp b6499000 00:00 0
b665c000-b66e8000 r-xs 00000000 08:03 5709415
/home/coke/sandbox/parrot/languages/tcl/runtime/tcllib.pbc
b66e8000-b6b12000 r-xp 00000000 08:02 1426009 /usr/lib/libparrot.so.0.6.1
b6b12000-b6b48000 rwxp 00429000 08:02 1426009 /usr/lib/libparrot.so.0.6.1
b6b5a000-b6b81000 r-xp 00000000 08:03 6160403
/home/coke/sandbox/parrot/runtime/parrot/dynext/tcl_group.so
b6b81000-b6b85000 rwxp 00026000 08:03 6160403
/home/coke/sandbox/parrot/runtime/parrot/dynext/tcl_group.so
b6b85000-b6bea000 rwxp b6b85000 00:00 0
b6bea000-b6bfe000 r-xp 00000000 08:02 1424425 /usr/lib/libz.so.1.2.3.3
b6bfe000-b6bff000 rwxp 00013000 08:02 1424425 /usr/lib/libz.so.1.2.3.3
b6bff000-b6c2d000 r-xp 00000000 08:02 2142238 /lib/libncurses.so.5.6
b6c2d000-b6c30000 rwxp 0002d000 08:02 2142238 /lib/libncurses.so.5.6
b6c30000-b6c3c000 r-xp 00000000 08:02 2142177 /lib/libgcc_s.so.1
b6c3c000-b6c3d000 rwxp 0000b000 08:02 2142177 /lib/libgcc_s.so.1
b6c3d000-b6d1f000 r-xp 00000000 08:02 1422911 /usr/lib/libstdc++.so.6.0.10
b6d1f000-b6d22000 r-xp 000e2000 08:02 1422911 /usr/lib/libstdc++.so.6.0.10
b6d22000-b6d24000 rwxp 000e5000 08:02 1422911 /usr/lib/libstdc++.so.6.0.10
b6d24000-b6d2a000 rwxp b6d24000 00:00 0
b6d2a000-b6e74000 r-xp 00000000 08:02 2191174 /lib/i686/nosegneg/libc-2.7.so
b6e74000-b6e75000 r-xp 0014a000 08:02 2191174 /lib/i686/nosegneg/libc-2.7.so
b6e75000-b6e77000 rwxp 0014b000 08:02 2191174 /lib/i686/nosegneg/libc-2.7.so
b6e77000-b6e7b000 rwxp b6e77000 00:00 0
b6e7b000-b6fac000 r-xp 00000000 08:02 1439629
/usr/lib/i686/cmov/libcrypto.so.0.9.8
b6fac000-b6fc2000 rwxp 00131000 08:02 1439629
/usr/lib/i686/cmov/libcrypto.so.0.9.8
b6fc2000-b6fc5000 rwxp b6fc2000 00:00 0
b6fc5000-b6feb000 r-xp 00000000 08:02 1424164 /usr/lib/libpcre.so.3.12.1
b6feb000-b6fec000 rwxp 00025000 08:02 1424164 /usr/lib/libpcre.so.3.12.1
b6fec000-b7018000 r-xp 00000000 08:02 2142235 /lib/libreadline.so.5.2
b7018000-b701c000 rwxp 0002c000 08:02 2142235 /lib/libreadline.so.5.2
b701c000-b701d000 rwxp b701c000 00:00 0
b701d000-b705f000 r-xp 00000000 08:02 1424240 /usr/lib/libgmp.so.3.4.2
b705f000-b7060000 rwxp 00042000 08:02 1424240 /usr/lib/libgmp.so.3.4.2
b7060000-b7067000 r-xp 00000000 08:02 2193043 /lib/i686/nosegneg/librt-2.7.so
b7067000-b7069000 rwxp 00006000 08:02 2193043 /lib/i686/nosegneg/librt-2.7.so
b7069000-b706b000 r-xp 00000000 08:02 2193049
/lib/i686/nosegneg/libutil-2.7.so
b706b000-b706d000 rwxp 00001000 08:02 2193049
/lib/i686/nosegneg/libutil-2.7.so
b706d000-b706e000 rwxp b706d000 00:00 0
b706e000-b7077000 r-xp 00000000 08:02 2191575
/lib/i686/nosegneg/libcrypt-2.7.so
b7077000-b7079000 rwxp 00008000 08:02 2191575
/lib/i686/nosegneg/libcrypt-2.7.so
b7079000-b70a0000 rwxp b7079000 00:00 0
b70a0000-b70a2000 r-xp 00000000 08:02 2191982 /lib/i686/nosegneg/libdl-2.7.so
b70a2000-b70a4000 rwxp 00001000 08:02 2191982 /lib/i686/nosegneg/libdl-2.7.so
b70a4000-b70b8000 r-xp 00000000 08:02 2193024
/lib/i686/nosegneg/libnsl-2.7.so
b70b8000-b70ba000 rwxp 00013000 08:02 2193024
/lib/i686/nosegneg/libnsl-2.7.so
b70ba000-b70bc000 rwxp b70ba000 00:00 0
b70bc000-b7930000 r-xp 00000000 08:02 1423359 /usr/lib/libicudata.so.34.1
b7930000-b7931000 rwxp 00873000 08:02 1423359 /usr/lib/libicudata.so.34.1
b7931000-b7a34000 r-xp 00000000 08:02 1423365 /usr/lib/libicuuc.so.34.1
b7a34000-b7a3b000 rwxp 00103000 08:02 1423365 /usr/lib/libicuuc.so.34.1
b7a3b000-b7a3c000 rwxp b7a3b000 00:00 0
b7a3c000-b7a5f000 r-xp 00000000 08:02 2191990 /lib/i686/nosegneg/libm-2.7.so
b7a5f000-b7a61000 rwxp 00023000 08:02 2191990 /lib/i686/nosegneg/libm-2.7.so
b7a61000-b7a62000 rwxp b7a61000 00:00 0
b7a62000-b7a76000 r-xp 00000000 08:02 2193039
/lib/i686/nosegneg/libpthread-2.7.so
b7a76000-b7a78000 rwxp 00013000 08:02 2193039
/lib/i686/nosegneg/libpthread-2.7.so
b7a78000-b7a7a000 rwxp b7a78000 00:00 0
b7a84000-b7a85000 rwxp b7a84000 00:00 0
b7a85000-b7a89000 r-xp 00000000 08:03 6160406
/home/coke/sandbox/parrot/runtime/parrot/dynext/tcl_ops.so
b7a89000-b7a8a000 rwxp 00004000 08:03 6160406
/home/coke/sandbox/parrot/runtime/parrot/dynext/tcl_ops.so
b7a8a000-b7a8c000 r-xs 00000000 08:03 4738352
/home/coke/sandbox/parrot/languages/tcl/tcl.pbc
b7a8c000-b7eb4000 r-xp 00000000 08:03 2545516
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4
b7eb4000-b7ee9000 rwxp 00427000 08:03 2545516
/home/coke/sandbox/parrot/blib/lib/libparrot.so.0.6.4
b7ee9000-b7eeb000 rwxp b7ee9000 00:00 0
b7eeb000-b7eec000 r-xp b7eeb000 00:00 0 [vdso]
b7eec000-b7f06000 r-xp 00000000 08:02 2142341 /lib/ld-2.7.so
b7f06000-b7f08000 rwxp 00019000 08:02 2142341 /lib/ld-2.7.so
bfd29000-bfd3e000 rwxp bfd29000 00:00 0 [stack]
Aborted
--
Will "Coke" Coleda
