I found a small buglet in the mips64orion _CPU_ISR_Set_level; the
original was wiping out the level argument, and then comparing the
current interrupt level with some random value of v0. See patch below.
that the per task reentrancy structure was not being processed properly
during exit().
joel@oarcorp.com wrote:
>
>
> This is always an ugly place to poke around. :(
>
> The code in newlib/libc/stdlib/exit.c walks the atexit chain for the
> reentrancy structure for JUST the current task. The code in libc_wrapup()
> does it for both the current task and the global reentrancy structure
> (which tends to be where driver atexit()'s were registered.
>
> So I think the _wrapup_reent(0) in libc_wrapup() should be commented out.
>
> If you concur, then I will make the change and improve the comment on this
> line of code to explain things:
>
> libc_wrapup(); /* Why? XXX */
>
> --joel
That does the job. cdtest.exe works correctly now.
In c/src/exec/score/cpu/powerpc/rtems/score/ppc.h:
A lot of hardware interrupts were omitted. Patch enclosed.
I have also added the 821.
In c/src/exec/score/cpu/powerpc/rtems/score/cpu.h:
My patch adds the 821.
In c/src/exec/score/cpu/powerpc/cpu.c:
I have added the MPC821, and also fixed up for the missing hardware
interrupts. It is also inconsistent with
c/src/lib/libcpu/powerpc/mpc860/vectors/vectors.S. This has been fixed.
In c/src/lib/libcpu/powerpc/mpc860/vectors/vectors.S:
Fixed an inconsistency with cpu.c.
I also include some new files to go with the above patches. These are the
cpu library rtems-19990331/c/src/lib/libcpu/powerpc/mpc821/* and
c/src/exec/score/cpu/powerpc/mpc821.h which are minor modifications of
the 860 equivalents.
Other comments:
The various accesses to the DPRAM on the 860 are done with a linktime
symbol. This could be done dynamically at run time by reading the immr
register, and masking off the lower 16 bits. This takes the same amount
of time as loading an address constant, and the same number of
instructions as well (2).
In c/src/lib/libcpu/powerpc/mpc860/console-generic/console-generic.c:
This will silently fail if you attempt to use SCC1. This is only relevant
if you are not using SCC1 for ethernet.
This file also sets one of port B output pins for each port. This is NOT
generic, it should be in the BSP specific console driver.
Joel Sherrill