Dmitry Boyarintsev wrote on Fri, 15 Apr 2016:
Does anyone know if cblocks are working for darwin-aarch64?
The tests in the testsuite work at least, both for ARM and AArch64.
The problem is that code seems to be failing on "setValueCahngeHandler"
call.
libobjc.A.dylib`objc_msgSend:
0x2469fa80 <+0>: cbz r0, 0x2469fabe ; <+62>
0x2469fa82 <+2>: ldr.w r9, [r0]
-> 0x2469fa86 <+6>: ldrh.w r12, [r9, #0xc] ; EXC_BAD_ACCESS
This crash probably has nothing to do with with blocks. objc_msgSend
is the dispatch routine to call an Objective-C method. Blocks are
called in a different way. The location of the error here suggests
that this Objective instance pointer is invalid.
I wonder if it's related to aarch64, is block parameter passed
incorrectly?.
Even if that were the case, it wouldn't crash at that place in
objc_msgSend. r0 contains the "self" pointer of the Objective-C
instance. It's unrelated to the the value of any parameters.
I'm also using fpc-trunk some 2015-Nov revision.
Should I just update to the latest fpc revision?
When using trunk, you should always use the latest version.
Jonas
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