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riscv: Rework exception handling

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Remove _CPU_ISR_install_raw_handler() and _CPU_ISR_install_vector()
functions.  Applications can install an exception handler via the fatal
error handler to handle synchronous exceptions.

Handle interrupt exceptions via _RISCV_Interrupt_dispatch() which must
be provided by the BSP.

Update #3433.
This commit is contained in:
Sebastian Huber
2018-07-19 12:11:19 +02:00
parent 5694b0cce4
commit 8db3f0e878
15 changed files with 120 additions and 170 deletions
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2
c/src/lib/libbsp/riscv/riscv/Makefile.am
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@@ -33,7 +33,7 @@ project_lib_LIBRARIES = librtemsbsp.a
# Startup
librtemsbsp_a_SOURCES = ../../../../../../bsps/shared/start/bspreset-empty.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspstart-empty.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/riscv/riscv/start/bspstart.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/riscv/riscv/start/bsp_fatal_halt.c
# Shared

3
c/src/lib/libbsp/riscv/riscv/configure.ac
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@@ -30,6 +30,9 @@ RTEMS_BSPOPTS_HELP([BSP_FDT_BLOB_COPY_TO_READ_ONLY_LOAD_AREA],[copy the FDT blob
RTEMS_BSPOPTS_SET([BSP_CONSOLE_BAUD],[*],[115200])
RTEMS_BSPOPTS_HELP([BSP_CONSOLE_BAUD],[default baud for console driver devices (default 115200)])
RTEMS_BSPOPTS_SET([RISCV_MAXIMUM_EXTERNAL_INTERRUPTS],[*],[64])
RTEMS_BSPOPTS_HELP([RISCV_MAXIMUM_EXTERNAL_INTERRUPTS],[maximum number of external interrupts supported by the BSP (default 64)])
RTEMS_BSPOPTS_SET([RISCV_ENABLE_HTIF_SUPPORT],[*],[1])
RTEMS_BSPOPTS_HELP([RISCV_ENABLE_HTIF_SUPPORT],[enables the HTIF support if defined to a non-zero value, otherwise it is disabled (enabled by default)])