This script breaks a binary blob into an arbitrary number of chunks of
text and data, and converts them into an ELF file with symbols at
arbitrary locations. It should work, with minor modification, for
binaries of any size, virtual address, and architecture.

This verifies that the files are properly sorted, as well as that there
are not duplicate sections or symbols, based on address, as well as
symbol names. Further checking is done to ensure that no two consecutive
sections are of the same type.

or1k is big-endian, but its address/data lines are swapped in hardware.

This script generates a dot graph description from all of the call
instructions in an assembly listing. It uses the most recently seen
symbol as the caller, and the operand symbol as the callee. If the
operand does not have a symbol, it falls back to a generic function
name.

This script assumes all call instructions (or architecture equivalent)
jump to the beginning of a function.

The binary came from arisc_sun50iw1p1.code in the H5 SDK v1.1.

Other than the exception handlers, the list of function symbols was
naively generated from the targets of l.jal instructions.

This allows combining manually-written comments with an
automatically-generated assembly listing.

Comments are C-like but with most braces and semicolons removed.

The added comments include all string resources that are referenced
directly in the source as arguments to printf.

These functions make the graph too cramped and interconnected
because they have large numbers of callers across the firmware.

Assume unconditional jumps to the beginning of a function are tail
calls. Mark them by dashed edges.