Ludo Brands wrote:
Still working on the problem in StdCodeTools.
Attached patches to http://bugs.freepascal.org/view.php?id=19109. I suggest
you keep this bug open for a while and that we attach alignment fixes as we
encounter them.
Just found another possible problematic piece of code in jitforms.pp in
function ClassTypeInfoAsString. Others in ide\emptymethodsdlg.pas and
ideintf\propedits.pp ...
With those three patches applied basic operation appears OK, but I might
now be seeing different behavior on the three systems I'm testing.
First, on ARM Linux (Debian "Squeeze") running in the context of Qemu I
am able to build a non-trivial program (several units, background
thread, database access) which runs successfully. I've not yet tested
debugger access etc.
Second, on SPARC Linux (Debian "Lenny") running on a Sun Ultra-1 with a
minimal project (button on form -> close) I get this during "Build All":
Compiling project1.lpr
Compiling unit1.pas
unit1.pas(16,25) Hint: Parameter "Sender" not used
Assembling unit1
Assembling project1
Compiling resource /home/markMLl/lib/sparc-linux/project1.or
Program received signal SIGBUS, Bus error.
[Switching to Thread 0xf7fa5aa0 (LWP 3925)]
0x00686ee8 in TREGEXPR__EMITNODE (OP=6 #6, this=0xf6129660) at
synregexpr.pas:1507
1507 PRENextOff (regcode)^ := 0; // Next "pointer" := nil
(gdb) bt
#0 0x00686ee8 in TREGEXPR__EMITNODE (OP=6 #6, this=0xf6129660) at
synregexpr.pas:1507
#1 0x00687b3c in TREGEXPR__PARSEBRANCH (FLAGP=0, this=0xf6129660) at
synregexpr.pas:1820
#2 0x00687790 in TREGEXPR__PARSEREG (PAREN=0, FLAGP=1, this=0xf6129660)
at synregexpr.pas:1756
#3 0x006873d4 in TREGEXPR__COMPILEREGEXPR (EXP=0xf5d700d0 'Unit
"[a-z_0-9]+" not used in [a-z_0-9]+',
this=0xf6129660) at synregexpr.pas:1669
#4 0x00686b3c in TREGEXPR__COMPILE (this=0xf6129660) at synregexpr.pas:1423
#5 0x00686c74 in TREGEXPR__ISPROGRAMMOK (this=0xf6129660) at
synregexpr.pas:1448
#6 0x0068e588 in TREGEXPR__EXECPRIM (AOFFSET=1, this=0xf6129660) at
synregexpr.pas:3453
#7 0x0068e550 in TREGEXPR__EXECPOS (AOFFSET=1, this=0xf6129660) at
synregexpr.pas:3414
#8 0x007f6638 in SYNREMATCHES (
THETEXT=0xf5a81e78 'Compiling resource
/home/markMLl/lib/sparc-linux/project1.or',
REGEXPR=0xfab824 'Unit "[a-z_0-9]+" not used in [a-z_0-9]+',
MODIFIERSTR=0xf48388 'I', STARTPOS=1)
at sourceeditprocs.pas:729
#9 0x0057be58 in REMATCHES (
THETEXT=0xf5a81e78 'Compiling resource
/home/markMLl/lib/sparc-linux/project1.or',
REGEXPR=0xfab824 'Unit "[a-z_0-9]+" not used in [a-z_0-9]+',
MODIFIERSTR=0xf48388 'I', STARTPOS=1)
at texttools.pas:121
#10 0x005d8560 in TIDEMSGQUICKFIXITEM__ISAPPLICABLE (LINE=0xf613b820,
this=0xf65c9f60) at idemsgintf.pas:450
#11 0x008570ec in TMESSAGESVIEW__UPDATEMSGICONS (this=0xf60b1b70) at
msgview.pp:1185
#12 0x008562e4 in TMESSAGESVIEW__IDLETIMER1TIMER (SENDER=0xf600b220,
this=0xf60b1b70) at msgview.pp:957
#13 0x0025ad0c in TCUSTOMTIMER__DOONTIMER (this=0xf600b220) at
customtimer.pas:181
#14 0x0025ac30 in TCUSTOMTIMER__TIMER (this=0xf600b220) at
customtimer.pas:156
#15 0x00327028 in GTKTIMERCB (DATA=0xf61c2c20) at gtk2callback.inc:2406
#16 0xf787cb40 in ?? () from /usr/lib/libglib-2.0.so.0
#17 0xf787cb40 in ?? () from /usr/lib/libglib-2.0.so.0
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
I don't know what to make of the "corrupt stack" messages which resemble
something from an older version which had debugging record errors. They
might be a red herring since lazbuild and generated code are OK on this
system.
Third, on ARM Linux (Debian "Lenny") running natively on an NSLU2 "Slug"
I appear to get a failure building a program. This is using Lazarus
built on the Qemu system (building natively takes an unacceptable length
of time), I don't yet have a backtrace etc. on account of slow operation
on this system (work continues).
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
--
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