[Lazarus] RE : RE : RE :RE:FPC_REQUIRES_PROPER_ALIGNMENTdefinedonSolariscausescrashin lazarus

[Ludo Brands]

> Attached is a patch to components/synedit/synregexpr.pas that 
> fixes alignment issues. I've tested the code against a test 
> unit (attached) that is a mix of 
> fpc/packages/regexpr/examples/testreg1.pp and 
> Demos/SelfTest/TestRegExpr.drp (from the official TRegExpr 
> package). The result is the same for aligned and non-aligned 
> platforms (error 120,121,122,123,124 and 703). This tests 
> only that my changes have not introduced a new bug, but, 
> since I'm testing on Solaris x86, I can't be sure that all 
> data is aligned properly. It's possible I've missed 
> something. I've tried to set the AC cpu flag to force 
> alignment checking but that generates alignment errors in libc :(  
> 
> Could you please test this on one of your sparc/arm systems? 
> 

I've tested the patch on a "qemulated" sparc debian and it works fine with
the test unit. QEMU sparc does generate SIGBUS for unaligned data (contrary
to QEMU ARM). A small testprogram (unaligned integer) confirmed that.

Ludo