M-profile cores manage interrupts differently from classic cores
and lack the FIQ. Split the interrupt management parts out into
separate headers but keep the endian swapping routines (which are
not profile-dependent) in the common system-arm header.
The initial part of the vector table is common to all Cortex-M
CPUs and is intended to be included by the target linker script,
with the vendor-specific part of the vector table appended to it.
Change-Id: Ib2ad5b9dc41db27940e39033cfef4308923db66d
Max allowed size: 120860
Old thumb build: 128494
New thumb build: 118514 (fits!)
Disabled:
Logo;
alpha blending capabilities for bitmaps;
Arm stack unwinder (backtrace);
Related forum discussion: https://forums.rockbox.org/index.php/topic,54768.0.html
Fixes FS#12380
Change-Id: I978720d795cb0ef5169103e467cf8386c21d8e93
SUPPORTED SERIES:
- NWZ-E450
- NWZ-E460
- NWZ-E470
- NWZ-E580
- NWZ-A10
NOTES:
- bootloader makefile convert an extra font to be installed alongside the bootloader
since sysfont is way too small
- the toolsicon bitmap comes from the Oxygen iconset
- touchscreen driver is untested
TODO:
- implement audio routing driver (pcm is handled by pcm-alsa)
- fix playback: it crashes on illegal instruction in DEBUG builds
- find out why the browser starts at / instead of /contents
- implement radio support
- implement return to OF for usb handling
- calibrate battery curve (NB: of can report a battery level on a 0-5 scale but
probabl don't want to use that ?)
- implement simulator build (we need a nice image of the player)
- figure out if we can detect jack removal
POTENTIAL TODOS:
- try to build a usb serial gadget and gdbserver
Change-Id: Ic77d71e0651355d47cc4e423a40fb64a60c69a80
Remove the implementations of all exceptions handlers from the
various crt0.S files and have a single implementation in system-arm.h
The new implementation is weak so that it can be overwritten by some
specific code (like the unwinder)
Change-Id: Ib3e041ed6037376bbe0e79286057e1051640dd90
Reviewed-on: http://gerrit.rockbox.org/205
Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>
Simplified stack unwinder for ARM. This is port of
http://www.mcternan.me.uk/ArmStackUnwinding/
backtrace() is called from UIE() on native targets
and from panicf() on both native and ARM RaaA.
Change-Id: I8e4b3c02490dd60b30aa372fe842d193b8929ce0
Display Address status address register on data aborts
Work on all ARM cpus but arm7tdmi (no MMU/MPU there)
FlySpray: FS#10296
Author: myself with help of Torne Wuff
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25087 a1c6a512-1295-4272-9138-f99709370657
