Re: undefined reference to __aeabi_unwind_cpp_pr1, __cxa_end_cleanup

[Ian Lance Taylor <iant at google dot com>]

JJ <alchemistmba@gmail.com> writes:

> unwind-arm.c:(.text+0x72c): undefined reference to `__exidx_end'
> unwind-arm.c:(.text+0x730): undefined reference to `__exidx_start'

These and the other undefined symbols are intended to be defined by
the linker script.  run ...-ld --verbose to see the default linker
script, and incorporate that stuff into your linker script.


> I also want to rewrite the "_start" function in assembly. If I add
> this file in, g++ complains that _start is defined twice. Is there a
> way to do this?

You'll need to use -nostartfiles and figure out what you need to
replace everything other than _start.

Or I suppose you could use ENTRY in your linker script to start your
program at something other than _start.

Ian