diff options
| author | Kinsey Moore <kinsey.moore@oarcorp.com> | 2022-01-26 10:18:46 -0600 |
|---|---|---|
| committer | Joel Sherrill <joel@rtems.org> | 2022-02-04 11:30:59 -0600 |
| commit | 127980c799ef9dee66c9ae4259962d6ffb9776b8 (patch) | |
| tree | c37500baf0473390f23c45933e50b20874102ffa /bsps/microblaze/shared/start/start.S | |
| parent | microblaze: Add support for libbsd networking (diff) | |
| download | rtems-127980c799ef9dee66c9ae4259962d6ffb9776b8.tar.bz2 | |
cpukit/microblaze: Add exception framework
This patch updates the CPU_Exception_frame to include all necessary
registers, combines hardware snd software exception handlers into a
shared vector, provides an architecture-specific hook for taking
control of exception handling, and moves exception handling over to
actually using the CPU_Exception_frame instead of a minimal interrupt
stack frame. As the significant contents of _exception_handler.S have
been entirely rewritten, the copyright information on this file has been
updated to reflect that.
Diffstat (limited to 'bsps/microblaze/shared/start/start.S')
| -rw-r--r-- | bsps/microblaze/shared/start/start.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/bsps/microblaze/shared/start/start.S b/bsps/microblaze/shared/start/start.S index 97250f9316..bd50fe0d24 100644 --- a/bsps/microblaze/shared/start/start.S +++ b/bsps/microblaze/shared/start/start.S @@ -76,7 +76,12 @@ _vector_interrupt: .section .vectors.hw_exception, "ax" .align 2 _vector_hw_exception: - brai _hw_exception_handler +/* + * Hardware and software exceptions are handled identically with the MSR[EiP] + * bit differentiating them and determining which register should be used for + * return. + */ + brai _exception_handler .section .text .globl _start1 |