diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/README')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/README | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/README b/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/README index 0f575ff1b1..414e358e6d 100644 --- a/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/README +++ b/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/README @@ -186,8 +186,15 @@ USAGE BSP initialization; call - initialize_exceptions(); - BSP_rtems_irq_mngt_set(); + rtems_status_code sc = ppc_exc_initialize( + PPC_INTERRUPT_DISABLE_MASK_DEFAULT, + interrupt_stack_begin, + interrupt_stack_size + ); + if (sc != RTEMS_SUCCESSFUL) { + BSP_panic("cannot initialize exceptions"); + } + BSP_rtems_irq_mngt_set(); Note that BSP_rtems_irq_mngt_set() hooks the C_dispatch_irq_handler() to the external and decrementer (PIT exception for bookE; a decrementer @@ -202,7 +209,7 @@ USAGE Hooking exceptions: - The API defined in ppc_exc_bspsupp.h declares routines for connecting + The API defined in vectors.h declares routines for connecting a C-handler to any exception. Note that the execution environment of the C-handler depends on the exception being synchronous or asynchronous: @@ -231,15 +238,15 @@ USAGE - add - include_bsp_HEADERS += \ - ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/vectors.h \ - ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/irq_supp.h \ - ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/ppc_exc_bspsupp.h + ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/vectors.h + ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/irq_supp.h + + to 'include_bsp_HEADERS' - add - ../../../libcpu/@RTEMS_CPU@/@exceptions@/exc_bspsupport.rel \ - ../../../libcpu/@RTEMS_CPU@/@exceptions@/irq_bspsupport.rel \ + ../../../libcpu/@RTEMS_CPU@/@exceptions@/exc_bspsupport.rel + ../../../libcpu/@RTEMS_CPU@/@exceptions@/irq_bspsupport.rel to 'libbsp_a_LIBADD' |