[fpc-devel] dwarf error when using const on mipsel arch

Michael Ring mail at michael-ring.org
Fri Jun 20 21:59:36 CEST 2014


consts seem to sometimes mix up dwarf debuginfo.

the following simple program:

program hello;

   const1: longword = 1;
//  const2: longword = 1;
//  const3: longword = 1;
//  const4: longword = 1;
//  i : integer;


causes the following dwarf error on load in gdb:

Reading symbols from /Users/ring/devel/pic32mx795f512h/hello.elf...Dwarf 
Error: wrong version in compilation unit header (is 273, should be 2, 3, 
or 4) [in module /Users/ring/dev

when I comment in var i:integer then error changes to:

Reading symbols from /Users/ring/devel/pic32mx795f512h/hello.elf...done.
invalid dwarf2 offset 9633792
Connected to the simulator.
invalid dwarf2 offset 9633792
invalid dwarf2 offset 9633792

when I comment out the const lines then all is fine.

I have this problem for the mipsel-embedded target, not sure if the same 
problem exists in mipsel-linux, I was unable to build a compiler to 
verify this.


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