#13184: Infinite loop with bash/readline/ICU on non-BMP Unicode characters
-----------------------------------+------------------------------
Reporter: jessicah | Owner: jackburton
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Applications/Terminal | Version: R1/Development
Keywords: | Blocked By:
Blocking: | Has a Patch: 0
Platform: All |
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When trying to cd into a directory with characters outside of the Unicode
Basic Multilingual Plane, it triggers an infinite loop parsing the
characters.
I've tested the same on Ubuntu, which handles the characters fine. Note
that they're not printable without a suitable font, but Haiku should still
handle them correctly irregardless.
{{{
thread 835: bash (main)
state: Debugged
Frame IP Function Name
-----------------------------------------------
0x7f5cf19f9fe0 0x12d46e62700 ucnv_toUnicode_57 + 0x60
Disassembly:
ucnv_toUnicode_57:
0x0000012d46e626a0: 55 push
%rbp
0x0000012d46e626a1: 4889e5 mov
%rsp, %rbp
0x0000012d46e626a4: 4157 push
%r15
0x0000012d46e626a6: 4156 push
%r14
0x0000012d46e626a8: 4155 push
%r13
0x0000012d46e626aa: 4154 push
%r12
0x0000012d46e626ac: 53 push
%rbx
0x0000012d46e626ad: 4883ec68 sub
$0x68, %rsp
0x0000012d46e626b1: 488b5d18 mov
0x18(%rbp), %rbx
0x0000012d46e626b5: 4c894d88 mov
%r9, -0x78(%rbp)
0x0000012d46e626b9: 448b4d10 mov
0x10(%rbp), %r9d
0x0000012d46e626bd: 4885db test
%rbx, %rbx
0x0000012d46e626c0: 7408 jz
0x46e626ca
0x0000012d46e626c2: 448b13 mov
(%rbx), %r10d
0x0000012d46e626c5: 4585d2 test
%r10d, %r10d
0x0000012d46e626c8: 7e16 jle
0x46e626e0
0x0000012d46e626ca: 4883c468 add
$0x68, %rsp
0x0000012d46e626ce: 5b pop
%rbx
0x0000012d46e626cf: 415c pop
%r12
0x0000012d46e626d1: 415d pop
%r13
0x0000012d46e626d3: 415e pop
%r14
0x0000012d46e626d5: 415f pop
%r15
0x0000012d46e626d7: 5d pop
%rbp
0x0000012d46e626d8: c3 ret
0x0000012d46e626d9: 0f1f8000000000 nop
(%rax)
0x0000012d46e626e0: 4885f6 test
%rsi, %rsi
0x0000012d46e626e3: 4989d4 mov
%rdx, %r12
0x0000012d46e626e6: 4989f5 mov
%rsi, %r13
0x0000012d46e626e9: 0f94c2 setz
%dl
0x0000012d46e626ec: 4885c9 test
%rcx, %rcx
0x0000012d46e626ef: 4989ce mov
%rcx, %r14
0x0000012d46e626f2: 0f94c0 setz
%al
0x0000012d46e626f5: 08c2 or
%al, %dl
0x0000012d46e626f7: 0f8533010000 jnz
0x12d46e62830
0x0000012d46e626fd: 4885ff test
%rdi, %rdi
0x0000012d46e62700: 4989ff mov
%rdi, %r15 <--
Frame memory:
[0x7f5cf19f9f40] ........c..'.... 00 00
00 00 00 00 00 00 63 04 a8 27 80 01 00 00
[0x7f5cf19f9f50] ................ 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00
[0x7f5cf19f9f60] 8...\.......\... 38 00
00 f1 5c 7f 00 00 a0 a1 9f f1 5c 7f 00 00
[0x7f5cf19f9f70] ..6}......6}.... a1 dc
36 7d 00 02 00 00 c2 dc 36 7d 00 02 00 00
[0x7f5cf19f9f80] ....\...E..'.... e0 9f
9f f1 5c 7f 00 00 45 13 a8 27 80 01 00 00
[0x7f5cf19f9f90] ........(...\... 00 00
00 00 00 00 00 00 28 a0 9f f1 5c 7f 00 00
[0x7f5cf19f9fa0] ........P...\... 08 04
00 00 00 00 00 00 50 a1 9f f1 5c 7f 00 00
[0x7f5cf19f9fb0] ..6}....8.9}.... a1 dc
36 7d 00 02 00 00 38 c9 39 7d 00 02 00 00
[0x7f5cf19f9fc0] ....\........... 10 a0
9f f1 5c 7f 00 00 00 00 00 00 00 00 00 00
[0x7f5cf19f9fd0] `...\......'.... 60 a0
9f f1 5c 7f 00 00 8c 14 a8 27 80 01 00 00
0x7f5cf19fa070 0x18027a81487
BPrivate::Libroot::ICUCtypeData::MultibyteToWchar(wchar_t*, char const*,
unsigned long, mbstate_t*, unsigned long&) + 0x79
0x7f5cf19fa0c0 0x18027a821b9
BPrivate::Libroot::ICULocaleBackend::MultibyteToWchar(wchar_t*, char
const*, unsigned long, mbstate_t*, unsigned long&) + 0x45
0x7f5cf19fa0e0 0x8eb226e146 mbrtowc + 0xd9
0x7f5cf19fa0f0 0x8eb226e066 __mbrlen + 0x20
0x7f5cf19fa130 0x1a3cd01ac07 _rl_adjust_point(char*,
int, mbstate_t*) + 0x61 (../mbutil.c:-1)
}}}
--
Ticket URL: <https://dev.haiku-os.org/ticket/13184>
Haiku <https://dev.haiku-os.org>
Haiku - the operating system.
