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* [Bug tdep/17038] New: gdb doesn't recognize s390 instruction CIT
@ 2014-06-07 2:51 code.kchoi at gmail dot com
2014-06-07 2:53 ` [Bug tdep/17038] " code.kchoi at gmail dot com
2015-06-29 8:03 ` krebbel at linux dot vnet.ibm.com
0 siblings, 2 replies; 3+ messages in thread
From: code.kchoi at gmail dot com @ 2014-06-07 2:51 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=17038
Bug ID: 17038
Summary: gdb doesn't recognize s390 instruction CIT
Product: gdb
Version: 7.3
Status: NEW
Severity: normal
Priority: P2
Component: tdep
Assignee: unassigned at sourceware dot org
Reporter: code.kchoi at gmail dot com
on zLinux, s390 instruction CIT is assembled into [.long 0xEC'R'0 'IIII'
'M'027] where R is target reg [0-F], I is immediate [0-2^4), and M is mask.
However, layout asm mode parses this instruction as 4 byte long when it is 6
byte. All subsequent instructions are therefore parsed incorrectly.
example
0x400656 .long 0xEC100000
0x40065a sth %r7,2418(%r2,%r11) //bogus, should parse from 0x40065c
(gdb) p/x *0x40065a
$1 = 0x4072b972 //0x4072 is from .long
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* [Bug tdep/17038] gdb doesn't recognize s390 instruction CIT
2014-06-07 2:51 [Bug tdep/17038] New: gdb doesn't recognize s390 instruction CIT code.kchoi at gmail dot com
@ 2014-06-07 2:53 ` code.kchoi at gmail dot com
2015-06-29 8:03 ` krebbel at linux dot vnet.ibm.com
1 sibling, 0 replies; 3+ messages in thread
From: code.kchoi at gmail dot com @ 2014-06-07 2:53 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=17038
--- Comment #1 from Flame Doge <code.kchoi at gmail dot com> ---
*** Bug 17037 has been marked as a duplicate of this bug. ***
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* [Bug tdep/17038] gdb doesn't recognize s390 instruction CIT
2014-06-07 2:51 [Bug tdep/17038] New: gdb doesn't recognize s390 instruction CIT code.kchoi at gmail dot com
2014-06-07 2:53 ` [Bug tdep/17038] " code.kchoi at gmail dot com
@ 2015-06-29 8:03 ` krebbel at linux dot vnet.ibm.com
1 sibling, 0 replies; 3+ messages in thread
From: krebbel at linux dot vnet.ibm.com @ 2015-06-29 8:03 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=17038
Andreas Krebbel <krebbel at linux dot vnet.ibm.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |krebbel at linux dot vnet.ibm.com
Resolution|--- |FIXED
--- Comment #2 from Andreas Krebbel <krebbel at linux dot vnet.ibm.com> ---
cit is a zarch instruction. It wasn't recognized because binutils disassembly
defaulted to ESA mode for 31 bit binaries. We changed that recently so it
should be fixed by now:
https://sourceware.org/ml/binutils/2013-10/msg00382.html
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2014-06-07 2:51 [Bug tdep/17038] New: gdb doesn't recognize s390 instruction CIT code.kchoi at gmail dot com
2014-06-07 2:53 ` [Bug tdep/17038] " code.kchoi at gmail dot com
2015-06-29 8:03 ` krebbel at linux dot vnet.ibm.com
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