[fpc-pascal] ARM Linux crosscompiler: compiles but... executable gives segmentation fault

[Reinier Olislagers]

On 10/01/2014 14:29, Pierre Free Pascal wrote:
>> Am 10.01.14 13:27, schrieb Reinier Olislagers:
>>> a segmentation fault. Running under gdb gives
>>> (gdb) run
>>> Starting program: /root/simple
>>>
>>> Program received signal SIGSEGV, Segmentation fault.
>>> 0x0002b6e4 in
>>> SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR ()
> 
>   Maybe it is just using an unsupported instruction?
> 
> what does "x /10i $pc" return?

(gdb) run
Starting program: /root/simple

Program received signal SIGSEGV, Segmentation fault.
0x0002b6e4 in
SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR ()
(gdb) bt
#0  0x0002b6e4 in
SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR ()
#1  0x00008124 in _start ()
(gdb) x /10i $pc
=> 0x2b6e4
<SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR+168>:
    str     r0, [r2, r1]
   0x2b6e8
<SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR+172>:
    ldr     r7, [r11, #-48] ; 0x30
   0x2b6ec
<SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR+176>:
    mov     r0, r7
   0x2b6f0
<SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR+180>:
    ldmdb       r11, {r4, r5, r6, r7, r8, r9, r11, sp, pc}
   0x2b6f4
<SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR+184>:
    andeq   r7, r1, r4, lsr #23
   0x2b6f8
<SYSTEM_$$_ARRAYSTRINGTOPPCHAR$array_of_ANSISTRING$LONGINT$$PPCHAR+188>:
    andeq   r0, r0, r0, ror #4
   0x2b6fc <SYSTEM_$$_STRINGTOPPCHAR$ANSISTRING$SMALLINT$$PPCHAR>:
push    {r4, lr}
   0x2b700 <SYSTEM_$$_STRINGTOPPCHAR$ANSISTRING$SMALLINT$$PPCHAR+4>:
    ldr r4, [pc, #24]   ; 0x2b720
<SYSTEM_$$_STRINGTOPPCHAR$ANSISTRING$SMALLINT$$PPCHAR+36>
   0x2b704 <SYSTEM_$$_STRINGTOPPCHAR$ANSISTRING$SMALLINT$$PPCHAR+8>:
add     r4, pc, r4
   0x2b708 <SYSTEM_$$_STRINGTOPPCHAR$ANSISTRING$SMALLINT$$PPCHAR+12>:
ldr     r0, [r0]