2008-08-14 Jie Zhang <jie.zhang@analog.com>

        * bfin/Makefile.in: (top_srcdir): Define.
        (mkinstalldirs): Define.
        (BOARD_SCRIPTS): Define.
        (BOARD_LDFLAGS): Define.
        (BOARD_BSP): Define.
        (BOARD_CRT0S): Define.
        (BOARD_OBJS): Define.
        (BOARD_TEST): Define.
        (BOARD_INSTALL): Define.
        (INCLUDES): Add -I$(srcdir)/include.
        (all): Add ${BOARD_CRT0S} and ${BOARD_BSP}.
        (.c.S): Remove target.
        (crt0.o): New target.
        (basiccrt.o): Likewise.
        (basiccrtb.o): Likewise.
        (basiccrts.o): Likewise.
        (basiccrt561.o, basiccrt561s.o, basiccrt561b.o): Likewise
        (clean mostlyclean): Remove ${BOARD_BSP}.
        (install): Depend on ${BOARD_INSTALL}.
        (install-sim): Reformat.
        (install-board): New target.
        * bfin/basiccrt.S: Remove useless __ADSPBF561_COREB__ in
        workaround code for 05000229.
        * bfin/syscalls.c (do_syscall): Use `EXCPT 0' instead of
        `RAISE 0' for syscall.
        * bfin/basiccrt.S: New file.
        * bfin/bf5*ld: New file.
        * bfin/bfin-common-mc.ld: New file.
        * bfin/bfin-common-sc.ld: New file.
        * bfin/include/blackfin.h: New file.
        * bfin/include/cdefBF5*.h: New file.
        * bfin/include/cdef_LPBlackfin.h: New file.
        * bfin/include/cdefblackfin.h: New file.
        * bfin/include/cplb.h: New file.
        * bfin/include/cplbtab.h: New file.
        * bfin/include/defBF5*.h: New files.
        * bfin/include/def_LPBlackfin.h: New files.
        * bfin/include/defblackfin.h: New file.
        * bfin/include/sys/_adi_platform.h: New file.
        * bfin/include/sys/anomaly_macros_rtl.h: New file.
        * bfin/include/sys/excause.h: New file.
        * bfin/include/sys/exception.h: New file.
        * bfin/include/sys/mc_typedef.h: New file.
        * bfin/include/sys/platform.h: New file.
        * bfin/include/sys/pll.h: New file.
        * bfin/include/sysreg.h: New file.
        * libnosys/configure.in (MISSING_SYSCALL_NAMES): Don't define
        for bfin.
        * libnosys/configure: Regenerate.

1 files changed, 260 insertions, 0 deletions

diff --git a/libgloss/bfin/include/sys/exception.h b/libgloss/bfin/include/sys/exception.h
new file mode 100644
index 000000000..6401b3b1e
--- /dev/null
+++ b/libgloss/bfin/include/sys/exception.h
@@ -0,0 +1,260 @@
+/*
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#pragma once
+#ifndef __NO_BUILTIN
+#pragma system_header /* exception.h */
+#endif
+/************************************************************************
+ *
+ * exception.h
+ *
+ * Copyright (C) 2008 Analog Devices, Inc.
+ *
+ ************************************************************************/
+
+#ifndef _EXCEPTION_H
+#define _EXCEPTION_H
+
+#ifdef _MISRA_RULES
+#pragma diag(push)
+#pragma diag(suppress:misra_rule_5_7)
+#pragma diag(suppress:misra_rule_6_3)
+#pragma diag(suppress:misra_rule_19_4)
+#pragma diag(suppress:misra_rule_19_7)
+#pragma diag(suppress:misra_rule_19_10)
+#pragma diag(suppress:misra_rule_19_13)
+#endif /* _MISRA_RULES */
+
+
+
+/*
+** Definitions for user-friendly interrupt handling.
+*/
+
+/*
+** Memory-Mapped Registers (MMRs) - these record what causes address
+** exceptions.
+*/
+
+#define EX_DATA_FAULT_STATUS	0xFFE00008
+#define EX_DATA_FAULT_ADDR	0xFFE0000C
+#define EX_CODE_FAULT_STATUS	0xFFE01008
+#define EX_CODE_FAULT_ADDR	0xFFE0100C
+
+/*
+** Event Vector Table
+*/
+
+#define EX_EVENT_VECTOR_TABLE	0xFFE02000
+
+/*
+** Meaning of the various bits in EXCAUSE field in SEQSTAT register.
+*/
+
+#define EX_BITS		0x3F	/* All EXCAUSE bits */
+#define EX_TYPE		0x30	/* The bits which define the type */
+#define EX_DEBUG	0x10	/* If set, is a debug exception type */
+#define EX_SYS		0x20	/* If set, is a system exception type */
+				/* If neither set, is from EXCPT instr */
+
+#define EX_IS_DEBUG_EXCEPTION(E)	(((E)&EX_TYPE)==EX_DEBUG)
+#define EX_IS_SYSTEM_EXCEPTION(E)	(((E)&EX_TYPE)==EX_SYS)
+#define EX_IS_USER_EXCEPTION(E)		(((E)&EX_TYPE)==0)
+
+/*
+** Service exceptions continue from the instruction after the one
+** that raised the exception.
+** Error exceptions restart the instruction that raised the exception.
+*/
+
+#define EX_IS_SERVICE_EXCEPTION(E)	(!EX_IS_SYSTEM_EXCEPTION(E))
+#define EX_IS_ERROR_EXCEPTION(E)	(EX_IS_SYSTEM_EXCEPTION(E))
+
+#define EX_DB_SINGLE_STEP 0x10	/* Processor is single-stepping */
+#define EX_DB_EMTRCOVRFLW 0x11	/* Emulation Trace buffer overflowed */
+
+#define EX_SYS_UNDEFINSTR 0x21	/* Undefined instruction */
+#define EX_SYS_ILLINSTRC  0x22	/* Illegal instruction combination */
+#define EX_SYS_DCPLBPROT  0x23	/* Data CPLB Protection violation */
+#define EX_SYS_DALIGN     0x24	/* Data access misaligned address violation */
+#define EX_SYS_UNRECEVT   0x25	/* Unrecoverable event */
+#define EX_SYS_DCPLBMISS  0x26	/* Data access CPLB Miss */
+#define EX_SYS_DCPLBMHIT  0x27	/* Data access CPLB Multiple Hits */
+#define EX_SYS_EMWATCHPT  0x28	/* Emulation watch point match */
+#define EX_SYS_CACCESSEX  0x29	/* Code fetch access exception */
+#define EX_SYS_CALIGN     0x2A	/* Attempted misaligned instr cache fetch */
+#define EX_SYS_CCPLBPROT  0x2B	/* Code fetch CPLB Protection */
+#define EX_SYS_CCPLBMISS  0x2C	/* CPLB miss on an instruction fetch */
+#define EX_SYS_CCPLBMHIT  0x2D	/* Code fetch CPLB Multiple Hits */
+#define EX_SYS_ILLUSESUP  0x2E	/* Illegal use of Supervisor Resource */
+
+/*
+** Meaning of the various bits in HWERRCAUSE in SEQSTAT
+*/
+
+#define EX_HWBITS (0x1F<<14)	/* bits 18:14 */
+
+#if !defined(__ADSPLPBLACKFIN__)
+#define EX_HW_NOMEM1	(0x16<<14)
+#define EX_HW_NOMEM2	(0x17<<14)
+#else
+#define EX_HW_SYSMMR	(0x02<<14)
+#define EX_HW_EXTMEM	(0x03<<14)
+#endif
+#define EX_HW_DMAHIT	(0x01<<14)
+#define EX_HW_PERFMON (0x12<<14)
+#define EX_HW_RAISE	(0x18<<14)
+
+/*
+** Meaning of the bits in DATA_FAULT_STATUS and CODE_FAULT_STATUS
+*/
+
+#define EX_DATA_FAULT_ILLADDR   (1<<19)	/* non-existent memory */
+#define EX_DATA_FAULT_DAG       (1<<18)	/* 0=>DAG0, 1=>DAG1 */
+#define EX_DATA_FAULT_USERSUPV  (1<<17)	/* 0=>user mode, 1=> supervisor */
+#define EX_DATA_FAULT_READWRITE (1<<16)	/* 0=>read, 1=>write */
+#define EX_DATA_FAULT_CPLB       0xFFFF	/* 0=>CPLB0, 1=>CPLB1, etc */
+
+#define EX_CODE_FAULT_ILLADDR   (1<<19)	/* non-existent memory */
+#define EX_CODE_FAULT_USERSUPV  (1<<17)	/* 0=>user mode, 1=> supervisor */
+#define EX_CODE_FAULT_CPLB       0xFFFF	/* 0=>CPLB0, 1=>CPLB1, etc */
+
+/*
+** The kinds of interrupt that can occur. These are also the
+** indices into the Event Vector Table.
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+  ik_err=-1,
+  ik_emulation,
+  ik_reset,
+  ik_nmi,
+  ik_exception,
+  ik_global_int_enable,
+  ik_hardware_err,
+  ik_timer,
+  ik_ivg7,
+  ik_ivg8,
+  ik_ivg9,
+  ik_ivg10,
+  ik_ivg11,
+  ik_ivg12,
+  ik_ivg13,
+  ik_ivg14,
+  ik_ivg15,
+  num_interrupt_kind
+} interrupt_kind;
+
+/*
+** Structure for recording details of an exception or interrupt
+** that has occurred.
+*/
+
+typedef struct {
+  interrupt_kind kind;		/* whether interrupt, exception, etc. */
+  int value;			/* interrupt number, exception type, etc. */
+  void *pc;			/* PC at point where exception occurred */
+  void *addr;			/* if an address faulted, which one. */
+  unsigned status;		/* if an address faulted, why. */
+} interrupt_info;
+
+/*
+** Macro for defining an interrupt routine
+*/
+
+typedef void (*ex_handler_fn)();
+
+#define EX_HANDLER(KIND,NAME) \
+_Pragma(#KIND) \
+void NAME ()
+
+#define EX_HANDLER_PROTO(KIND, NAME) EX_HANDLER(KIND, NAME)
+
+#define EX_INTERRUPT_HANDLER(NAME)	EX_HANDLER(interrupt,NAME)
+#define EX_EXCEPTION_HANDLER(NAME)	EX_HANDLER(exception,NAME)
+#define EX_NMI_HANDLER(NAME)		EX_HANDLER(nmi,NAME)
+#define EX_REENTRANT_HANDLER(NAME) \
+_Pragma("interrupt_reentrant") \
+EX_HANDLER(interrupt,NAME)
+
+/*
+** A convenience function for setting up the interrupt_info contents.
+** Must be called from immediately with the interrupt handler.
+*/
+
+void get_interrupt_info(interrupt_kind int_kind, interrupt_info *int_info);
+
+/*
+** Diagnostics function for reporting unexpected events.
+*/
+
+void _ex_report_event(interrupt_info *int_info);
+
+/*
+** Register an interrupt handler within the EVT.
+** Return previous value if there was one.
+*/
+ex_handler_fn register_handler(interrupt_kind int_kind, ex_handler_fn handler);
+
+/*
+** Some magic values for registering default and null handlers.
+*/
+
+#define EX_INT_DEFAULT ((ex_handler_fn)-1)
+#define EX_INT_IGNORE  ((ex_handler_fn)0)
+
+/*
+** Extended function to register an interrupt handler within the EVT.
+** Returns the old handler.
+**
+** If enabled == EX_INT_ALWAYS_ENABLE, install fn (if fn != EX_INT_IGNORE
+** and fn != EX_INT_DISABLE), and then enable the interrupt in IMASK then
+** return
+**
+** If fn == EX_INT_IGNORE, disable the interrupt
+** If fn == EX_INT_DEFAULT, delete the handler entry in the EVT and disable
+**   the interrupt in IMASK
+** Otherwise, install the new interrupt handler.  Then,
+**  If enabled == EX_INT_DISABLE, disable the interrupt in IMASK
+**  If enabled == EX_INT_ENABLE, enable the interrupt in IMASK
+**  otherwise leave the interrupt status alone.
+*/
+ex_handler_fn register_handler_ex(interrupt_kind kind, ex_handler_fn fn,
+                                  int enable);
+
+/* Constants for the enabled parameter of register_handler_ex */
+#define EX_INT_DISABLE 0
+#define EX_INT_ENABLE 1
+#define EX_INT_KEEP_IMASK -1
+#define EX_INT_ALWAYS_ENABLE 2
+
+/*
+** Allow the user to raise exceptions from C.
+*/
+
+int raise_interrupt(interrupt_kind kind, int which,
+   int cmd, int arg1, int arg2);
+
+#ifdef __cplusplus
+  } /* extern "C" */
+#endif
+
+#ifdef _MISRA_RULES
+#pragma diag(pop)
+#endif /* _MISRA_RULES */
+
+#endif /* _EXCEPTION_H */