[Lazarus] Lazarus on POWER9 Little Endian

[Tobias Giesen]

Hello,
I compiled lazarus trunk with Free Pascal Compiler version 3.3.1
[2019/07/12] for powerpc64.

I also tried an older FPC snapshot but the result is the same
(Free Pascal Compiler version 3.1.1 [2017/10/19] for powerpc64)

(gdb) run
Starting program: /home/tobias/lazarus/startlazarus
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/lib/powerpc64le-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7c3aa64 in XGetWindowProperty () from
/lib/powerpc64le-linux-gnu/libX11.so.6
(gdb) info stack
#0  0x00007ffff7c3aa64 in XGetWindowProperty () at
/lib/powerpc64le-linux-gnu/libX11.so.6
#1  0x0000000010155b30 in XLIB_$$_XGETWINDOWPROPERTY$crcF838B835 ()
#2  0x00000000100e6310 in GETWINDOWMANAGER (this=0x7ffff5700f30) at
gtk2widgetset.inc:4424

(gdb) info registers
r0             0x10155b30          269835056
r1             0x7fffffffdf40      140737488346944
r2             0x7ffff7dc7c00      140737351810048
r3             0x10a0d1e0          278974944
r4             0x2a1               673
r5             0x188               392
r6             0x0                 0
r7             0x400               1024
r8             0x0                 0
r9             0x7fffffffdfb0      140737488347056
r10            0x0                 0
r11            0xffffffffffffffd8  18446744073709551576
r12            0x7ffff7c3a9c0      140737350183360
r13            0x7ffff60fd540      140737321620800
r14            0x0                 0
r15            0x0                 0
r16            0x0                 0
r17            0x0                 0
r18            0x0                 0
r19            0x0                 0
r20            0x2a1               673
r21            0x188               392
r22            0x21                33
r23            0x0                 0
r24            0x0                 0
r25            0x400               1024
r26            0x7fffffffe1d0      140737488347600
r27            0x7fffffffe1c0      140737488347584
r28            0x7fffffffe0e0      140737488347360
r29            0x100d93d0          269325264
r30            0x7fffffffe1c8      140737488347592
r31            0x10a0d1e0          278974944
pc             0x7ffff7c3aa64      0x7ffff7c3aa64 <XGetWindowProperty+164>
msr            0x900000000000d933  10376293541461678387
cr             0x28000244          671089220
lr             0x10155b30          0x10155b30
<XLIB_$$_XGETWINDOWPROPERTY$crcF838B835+72>
ctr            0x7ffff7c3a9c0      140737350183360
xer            0x0                 0
fpscr          0x82020090          2181169296
vscr           0x0                 0
vrsave         0xffffffff          -1
ppr            0xc000000000000     3377699720527872
--Type <RET> for more, q to quit, c to continue without paging--c
dscr           0x10                16
tar            0x0                 0
bescr          <unavailable>
ebbhr          <unavailable>
ebbrr          <unavailable>
mmcr0          0x0                 0
mmcr2          0x0                 0
siar           0x0                 0
sdar           0x0                 0
sier           0x0                 0
orig_r3        0x7ffff7fc9bd0      140737353915344
trap           0x300               768

layout asm:

  >│0x7ffff7c3aa64 <XGetWindowProperty+164> std     r10,0(r29)

       │
   │0x7ffff7c3aa68 <XGetWindowProperty+168> stxvd2x vs0,r9,r11

       │
   │0x7ffff7c3aa6c <XGetWindowProperty+172> std     r10,0(r26)

       │
   │0x7ffff7c3aa70 <XGetWindowProperty+176> std     r10,88(r1)

       │
   │0x7ffff7c3aa74 <XGetWindowProperty+180> std     r10,96(r1)

       │
   │0x7ffff7c3aa78 <XGetWindowProperty+184> ld      r9,2408(r3)

      │
   │0x7ffff7c3aa7c <XGetWindowProperty+188> cmpdi   cr7,r9,0

       │
   │0x7ffff7c3aa80 <XGetWindowProperty+192> beq     cr7,0x7ffff7c3aa98
<XGetWindowProperty+216>
            │
   │0x7ffff7c3aa84 <XGetWindowProperty+196> ld      r9,0(r9)

       │
   │0x7ffff7c3aa88 <XGetWindowProperty+200> mtctr   r9

       │
   │0x7ffff7c3aa8c <XGetWindowProperty+204> mr      r12,r9

       │
   │0x7ffff7c3aa90 <XGetWindowProperty+208> bctrl

      │
   │0x7ffff7c3aa94 <XGetWindowProperty+212> ld      r2,24(r1)

      │
   │0x7ffff7c3aa98 <XGetWindowProperty+216> li      r5,24

      │
   │0x7ffff7c3aa9c <XGetWindowProperty+220> li      r4,20

      │
   │0x7ffff7c3aaa0 <XGetWindowProperty+224> mr      r3,r31

       │
   │0x7ffff7c3aaa4 <XGetWindowProperty+228> bl      0x7ffff7c6a168
<_XGetRequest+8>
                │
   │0x7ffff7c3aaa8 <XGetWindowProperty+232> nop

      │
   │0x7ffff7c3aaac <XGetWindowProperty+236> li      r6,0

       │
   │0x7ffff7c3aab0 <XGetWindowProperty+240> li      r5,0

       │
   │0x7ffff7c3aab4 <XGetWindowProperty+244> addi    r4,r1,40

       │
   │0x7ffff7c3aab8 <XGetWindowProperty+248> mr      r9,r3

      │
   │0x7ffff7c3aabc <XGetWindowProperty+252> stw     r20,4(r3)

      │
   │0x7ffff7c3aac0 <XGetWindowProperty+256> stw     r21,8(r3)

      │
   │0x7ffff7c3aac4 <XGetWindowProperty+260> mr      r3,r31

       │
   │0x7ffff7c3aac8 <XGetWindowProperty+264> stb     r23,1(r9)



On Mon, Aug 19, 2019 at 9:24 PM Florian Klaempfl via lazarus <
lazarus at lists.lazarus-ide.org> wrote:

> Am 18.08.2019 um 11:41 schrieb Tobias Giesen via lazarus:
> > Hello,
> > I am trying to use Lazarus on a ppc64el processor under Ubuntu.
> >
> > Unfortunately startlazarus and lazarus crash with a segmentation fault in
> > a call to XGetWindowProperty in gtk2widgetset.inc in function
> > TGtk2WidgetSet.GetWindowManager.
>
> A stack trace and assembler dump at the crash location might be helpful ...
> --
> _______________________________________________
> lazarus mailing list
> lazarus at lists.lazarus-ide.org
> https://lists.lazarus-ide.org/listinfo/lazarus
>
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