22699d7467
typically sets those from a 13bit signed integer immediate field in the instruction, so would need to jump through hoops (ok, small hoops) to avoid sign extension. Use a combination of the existing syscall flags instead.
146 lines
6.3 KiB
C
146 lines
6.3 KiB
C
/* $NetBSD: trap.h,v 1.18 2011/03/27 18:47:08 martin Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This software was developed by the Computer Systems Engineering group
|
|
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
|
* contributed to Berkeley.
|
|
*
|
|
* All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Lawrence Berkeley Laboratory.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)trap.h 8.1 (Berkeley) 6/11/93
|
|
*/
|
|
/*
|
|
* Sun4m support by Aaron Brown, Harvard University.
|
|
* Changes Copyright (c) 1995 The President and Fellows of Harvard College.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
#ifndef _MACHINE_TRAP_H
|
|
#define _MACHINE_TRAP_H
|
|
|
|
/* trap vec (pri) description */
|
|
#define T_RESET 0x00 /* (1) not actually vectored; jumps to 0 */
|
|
#define T_TEXTFAULT 0x01 /* (2) address fault during instr fetch */
|
|
#define T_ILLINST 0x02 /* (3) illegal instruction */
|
|
#define T_PRIVINST 0x03 /* (4) privileged instruction */
|
|
#define T_FPDISABLED 0x04 /* (5) fp instr while fp disabled */
|
|
#define T_WINOF 0x05 /* (6) register window overflow */
|
|
#define T_WINUF 0x06 /* (7) register window underflow */
|
|
#define T_ALIGN 0x07 /* (8) address not properly aligned */
|
|
#define T_FPE 0x08 /* (9) floating point exception */
|
|
#define T_DATAFAULT 0x09 /* (10) address fault during data fetch */
|
|
#define T_TAGOF 0x0a /* (11) tag overflow */
|
|
/* 0x0b unused */
|
|
/* 0x0c unused */
|
|
/* 0x0d unused */
|
|
/* 0x0e unused */
|
|
/* 0x0f unused */
|
|
/* 0x10 unused */
|
|
#define T_L1INT 0x11 /* (27) level 1 interrupt */
|
|
#define T_L2INT 0x12 /* (26) level 2 interrupt */
|
|
#define T_L3INT 0x13 /* (25) level 3 interrupt */
|
|
#define T_L4INT 0x14 /* (24) level 4 interrupt */
|
|
#define T_L5INT 0x15 /* (23) level 5 interrupt */
|
|
#define T_L6INT 0x16 /* (22) level 6 interrupt */
|
|
#define T_L7INT 0x17 /* (21) level 7 interrupt */
|
|
#define T_L8INT 0x18 /* (20) level 8 interrupt */
|
|
#define T_L9INT 0x19 /* (19) level 9 interrupt */
|
|
#define T_L10INT 0x1a /* (18) level 10 interrupt */
|
|
#define T_L11INT 0x1b /* (17) level 11 interrupt */
|
|
#define T_L12INT 0x1c /* (16) level 12 interrupt */
|
|
#define T_L13INT 0x1d /* (15) level 13 interrupt */
|
|
#define T_L14INT 0x1e /* (14) level 14 interrupt */
|
|
#define T_L15INT 0x1f /* (13) level 15 interrupt */
|
|
/* 0x20 unused */
|
|
#define T_TEXTERROR 0x21 /* (3) address fault during instr fetch */
|
|
/* 0x22 unused */
|
|
/* 0x23 unused */
|
|
#define T_CPDISABLED 0x24 /* (5) coprocessor instr while disabled */
|
|
#define T_UNIMPLFLUSH 0x25 /* Unimplemented FLUSH */
|
|
/* through 0x27 unused */
|
|
#define T_CPEXCEPTION 0x28 /* (11) coprocessor exception */
|
|
#define T_DATAERROR 0x29 /* (12) address error during data fetch */
|
|
#define T_IDIV0 0x2a /* divide by zero (from hw [su]div instr) */
|
|
#define T_STOREBUFFAULT 0x2b /* SuperSPARC: Store buffer copy-back fault */
|
|
/* 0x2c unused */
|
|
/* through 0x7f unused */
|
|
|
|
/* beginning of `user' vectors (from trap instructions) - all priority 12 */
|
|
#define T_SUN_SYSCALL 0x80 /* system call */
|
|
#define T_BREAKPOINT 0x81 /* breakpoint `instruction' */
|
|
#define T_DIV0 0x82 /* explicitly signal division by zero */
|
|
#define T_FLUSHWIN 0x83 /* flush windows */
|
|
#define T_CLEANWIN 0x84 /* request new windows to be cleaned */
|
|
#define T_RANGECHECK 0x85 /* explicitly signal a range checking error */
|
|
#define T_FIXALIGN 0x86 /* fix up unaligned accesses */
|
|
#define T_INTOF 0x87 /* explicitly signal integer overflow */
|
|
#define T_SVR4_SYSCALL 0x88 /* SVR4 system call */
|
|
|
|
/* 0x89..0x8f - reserved for the OS */
|
|
#define T_BSD_SYSCALL 0x89 /* BSD system call */
|
|
#define T_KGDB_EXEC 0x8a /* for kernel gdb */
|
|
#define T_DBPAUSE 0x8b /* for smp kernel debugging */
|
|
|
|
/* 0x90..0x9f - reserved, will never be specified */
|
|
|
|
/* 0xa0..0xff are currently unallocated, except the following */
|
|
#define T_SVR4_GETCC 0xa0
|
|
#define T_SVR4_SETCC 0xa1
|
|
#define T_SVR4_GETPSR 0xa2
|
|
#define T_SVR4_SETPSR 0xa3
|
|
#define T_SVR4_GETHRTIME 0xa4
|
|
#define T_SVR4_GETHRVTIME 0xa5
|
|
#define T_SVR4_GETHRESTIME 0xa7
|
|
|
|
|
|
#ifdef _KERNEL /* pseudo traps for locore.s */
|
|
#define T_RWRET -1 /* need first user window for trap return */
|
|
#define T_AST -2 /* no-op, just needed reschedule or profile */
|
|
#endif
|
|
|
|
/* flags to system call (flags in %g1 along with syscall number) */
|
|
#define SYSCALL_G2RFLAG 0x400 /* on success, return to %g2 rather than npc */
|
|
#define SYSCALL_G7RFLAG 0x800 /* use %g7 as above (deprecated) */
|
|
#define SYSCALL_G5RFLAG 0xc00 /* use %g5 as above (only ABI compatible way) */
|
|
|
|
/*
|
|
* `software trap' macros to keep people happy (sparc v8 manual says not
|
|
* to set the upper bits).
|
|
*/
|
|
#define ST_SYSCALL (T_SUN_SYSCALL & 0x7f)
|
|
#define ST_BREAKPOINT (T_BREAKPOINT & 0x7f)
|
|
#define ST_DIV0 (T_DIV0 & 0x7f)
|
|
#define ST_FLUSHWIN (T_FLUSHWIN & 0x7f)
|
|
|
|
#endif /* _MACHINE_TRAP_H_ */
|