len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-12-08 12:45:26 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

arm: factor all exception handlers out of the crt0.S files

Browse source 
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>
This commit is contained in:
Amaury Pouly 2012-04-02 15:11:21 +02:00
parent bb0e4cc543
commit f33330c0ff
11 changed files with 50 additions and 312 deletions
Download patch file Download diff file Expand all files Collapse all files

27
firmware/target/arm/rk27xx/crt0.S
View file

@ -196,30 +196,3 @@ entry_point:
bhi 1b
bl main
/* All illegal exceptions call into UIE with exception address as first
* parameter. This is calculated differently depending on which exception
* we're in. Second parameter is exception number, used for a string lookup
* in UIE. */
undef_instr_handler:
sub r0, lr, #4
mov r1, #0
b UIE
prefetch_abort_handler:
sub r0, lr, #4
mov r1, #1
b UIE
data_abort_handler:
sub r0, lr, #8
mov r1, #2
b UIE
/* We run sys mode most of the time, and should never see a software
* exception being thrown. Make it illegal and call UIE */
software_int_handler:
reserved_handler:
sub r0, lr, #4
mov r1, #5
b UIE