[LLVMdev] Why gdb can't determine stack of code run in JIT?

[Yuri]

I run some code in JIT on x86-64 architecture.
Even though llvm::NoFramePointerElim is set to true, I still see weird 
stack in gdb, see below.
800b485a4 is the current rip register where gdb stopped. Then many 
others values aren't valid. Then there is value that looks ok again.

Why gdb can't determine stack?

Yuri


-- stack --
#0  0x0000000800b485a4 in ?? ()
#1  0x000000000000005f in ?? ()
#2  0x0000000003899330 in ?? ()
#3  0x000000000422d6f8 in ?? ()
#4  0x0000000000ea7468 in ?? ()
#5  0x00000000051b0600 in ?? ()
#6  0x00000000013714d8 in ?? ()
#7  0x0000000003b425c8 in ?? ()
#8  0x000000000397c420 in ?? ()
#9  0x00007fffffffae60 in ?? ()
#10 0x0000000800b481b1 in ?? ()
#11 0x0000000003b42590 in ?? ()
#12 0x00000000038993c0 in ?? ()
#13 0x000000000397c940 in ?? ()
#14 0x00000000038992e8 in ?? ()
#15 0x0000000003899330 in ?? ()
#16 0x0000000004b0a748 in ?? ()
#17 0x000000000556e818 in ?? ()
#18 0x0000000003899378 in ?? ()
#19 0x00000000038993c0 in ?? ()