I compiled cda0614beaec tip @
without docs, w/o qt w/o fltk and with
-fsanitize=address.
octave:1> graphics_toolkit
ans = gnuplot
octave:2> plot(1:3)
=================================================================
==4434==ERROR: AddressSanitizer: stack-use-after-scope on address 0x7ffc5a8d0db0 at pc 0x7fb6854474ba bp 0x7ffc5a8d0c70 sp 0x7ffc5a8d0418
WRITE of size 128 at 0x7ffc5a8d0db0 thread T0
#0 0x7fb6854474b9 (/lib64/libasan.so.4+0x394b9)
#1 0x7fb682388f72 in octave_set_signal_handler_internal (/home/dima/src/octave/gcc_def/liboctave/.libs/liboctave.so.4+0x1562f72)
#2 0x7fb68238917d in octave_set_signal_handler_by_name (/home/dima/src/octave/gcc_def/liboctave/.libs/liboctave.so.4+0x156317d)
#3 0x7fb684a26ffc in octave::set_signal_handler(char const*, void (*)(int), bool) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x2043ffc)
#4 0x7fb684a2787f in octave::catch_interrupts() (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x204487f)
#5 0x7fb68475e9e6 in octave::interpreter::recover_from_exception() (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1d7b9e6)
#6 0x7fb6840129bd in octave::tree_evaluator::visit_try_catch_command(octave::tree_try_catch_command&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162f9bd)
#7 0x7fb684045b08 in octave::tree_try_catch_command::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1662b08)
#8 0x7fb684010c56 in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162dc56)
#9 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#10 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#11 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#12 0x7fb684004690 in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1621690)
#13 0x7fb683fedfce in octave::tree_if_command_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x160afce)
#14 0x7fb68400431c in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162131c)
#15 0x7fb684060c8e in octave::tree_if_command::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x167dc8e)
#16 0x7fb684010c56 in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162dc56)
#17 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#18 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#19 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#20 0x7fb684001771 in octave::tree_evaluator::visit_simple_for_command(octave::tree_simple_for_command&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x161e771)
#21 0x7fb684054234 in octave::tree_simple_for_command::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1671234)
#22 0x7fb684010c56 in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162dc56)
#23 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#24 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#25 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#26 0x7fb683e076a1 in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x14246a1)
#27 0x7fb684005f89 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1622f89)
#28 0x7fb68404d8e2 in octave::tree_index_expression::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x166a8e2)
#29 0x7fb683c73a80 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1290a80)
#30 0x7fb684014c3b in octave::tree_evaluator::is_logically_true(octave::tree_expression*, char const*) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1631c3b)
#31 0x7fb684004643 in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1621643)
#32 0x7fb683fedfce in octave::tree_if_command_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x160afce)
#33 0x7fb68400431c in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162131c)
#34 0x7fb684060c8e in octave::tree_if_command::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x167dc8e)
#35 0x7fb684010c56 in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162dc56)
#36 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#37 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#38 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#39 0x7fb684004690 in octave::tree_evaluator::visit_if_command_list(octave::tree_if_command_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1621690)
#40 0x7fb683fedfce in octave::tree_if_command_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x160afce)
#41 0x7fb68400431c in octave::tree_evaluator::visit_if_command(octave::tree_if_command&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162131c)
#42 0x7fb684060c8e in octave::tree_if_command::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x167dc8e)
#43 0x7fb684010c56 in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162dc56)
#44 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#45 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#46 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#47 0x7fb684011aac in octave::tree_evaluator::visit_switch_command(octave::tree_switch_command&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162eaac)
#48 0x7fb684060d76 in octave::tree_switch_command::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x167dd76)
#49 0x7fb684010c56 in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162dc56)
#50 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#51 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#52 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#53 0x7fb683e076a1 in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x14246a1)
#54 0x7fb684005f89 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1622f89)
#55 0x7fb68404d8e2 in octave::tree_index_expression::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x166a8e2)
#56 0x7fb683c73a80 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1290a80)
#57 0x7fb68400f872 in octave::tree_evaluator::visit_simple_assignment(octave::tree_simple_assignment&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162c872)
#58 0x7fb683fe9d56 in octave::tree_simple_assignment::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1606d56)
#59 0x7fb683c73a80 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1290a80)
#60 0x7fb684010f6d in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162df6d)
#61 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#62 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#63 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#64 0x7fb6840133d3 in octave::tree_evaluator::visit_unwind_protect_command(octave::tree_unwind_protect_command&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x16303d3)
#65 0x7fb684045b7c in octave::tree_unwind_protect_command::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1662b7c)
#66 0x7fb684010c56 in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162dc56)
#67 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#68 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#69 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#70 0x7fb683e076a1 in octave_user_function::call(octave::tree_evaluator&, int, octave_value_list const&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x14246a1)
#71 0x7fb684005f89 in octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1622f89)
#72 0x7fb68404d8e2 in octave::tree_index_expression::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x166a8e2)
#73 0x7fb683c73a80 in octave::tree_evaluator::evaluate(octave::tree_expression*, int) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1290a80)
#74 0x7fb684010f6d in octave::tree_evaluator::visit_statement(octave::tree_statement&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162df6d)
#75 0x7fb684063ee0 in octave::tree_statement::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1680ee0)
#76 0x7fb684011376 in octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x162e376)
#77 0x7fb683c744c6 in octave::tree_statement_list::accept(octave::tree_walker&) (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x12914c6)
#78 0x7fb68475ab23 in octave::interpreter::main_loop() (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1d77b23)
#79 0x7fb684757ba0 in octave::interpreter::execute() (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x1d74ba0)
#80 0x7fb6831c8fd4 in octave::cli_application::execute() (/home/dima/src/octave/gcc_def/libinterp/.libs/liboctinterp.so.4+0x7e5fd4)
#81 0x402074 in main (/home/dima/src/octave/gcc_def/src/.libs/lt-octave-cli+0x402074)
#82 0x7fb678d824d9 in __libc_start_main (/lib64/libc.so.6+0x204d9)
#83 0x4019e9 in _start (/home/dima/src/octave/gcc_def/src/.libs/lt-octave-cli+0x4019e9)
Address 0x7ffc5a8d0db0 is located in stack of thread T0 at offset 288 in frame
#0 0x7fb682388dc0 in octave_set_signal_handler_internal (/home/dima/src/octave/gcc_def/liboctave/.libs/liboctave.so.4+0x1562dc0)
This frame has 2 object(s):
[32, 184) 'act'
[224, 376) 'oact' <== Memory access at offset 288 partially overflows this variable
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext
(longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-use-after-scope (/lib64/libasan.so.4+0x394b9)
Shadow bytes around the buggy address:
0x10000b512160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x10000b512170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x10000b512180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x10000b512190: 00 00 f1 f1 f1 f1 00 00 00 00 00 00 00 00 00 00
0x10000b5121a0: 00 00 00 00 00 00 00 00 00 f2 f2 f2 f2 f2 00 00
=>0x10000b5121b0: 00 00 00 00 00 00[f8]f8 00 00 00 00 00 00 00 00
0x10000b5121c0: 00 f2 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00
0x10000b5121d0: f1 f1 f1 f1 04 f2 f2 f2 f3 f3 f3 f3 00 00 00 00
0x10000b5121e0: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
0x10000b5121f0: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
0x10000b512200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==4434==ABORTING
address@hidden gcc_def]$ hg id
cda0614beaec tip @