1bc796d774
for sparc64 from trap #9 to trap #65. This is one of the ABI "blessed" system call vectors and is different from any other system that we might want to emulate, making the emulation easier by reducing the number of code paths that need to be shared. Compatibility with old applications is provided with COMPAT_FREEBSD4. Add defines for a few special traps that we may need to implement for compatibility with 32bit applications, and add comments on which vectors are used for what in other systems, and which are available. Pass magic flags to trap() for deprecated or unimplemented system call vectors so they will deliver SIGSYS instead of SIGILL. This piggy backs nicely with the recent sigaction(2) system call number change, and provided the rules are followed for upgrading past it, this change should not be noticed.
109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
/*-
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* Copyright (c) 2001 Jake Burkholder.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_UTRAP_H_
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#define _MACHINE_UTRAP_H_
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#define UT_INSTRUCTION_EXCEPTION 1
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#define UT_INSTRUCTION_ERROR 2
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#define UT_INSTRUCTION_PROTECTION 3
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#define UT_ILLTRAP_INSTRUCTION 4
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#define UT_ILLEGAL_INSTRUCTION 5
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#define UT_PRIVILEGED_OPCODE 6
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#define UT_FP_DISABLED 7
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#define UT_FP_EXCEPTION_IEEE_754 8
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#define UT_FP_EXCEPTION_OTHER 9
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#define UT_TAG_OFERFLOW 10
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#define UT_DIVISION_BY_ZERO 11
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#define UT_DATA_EXCEPTION 12
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#define UT_DATA_ERROR 13
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#define UT_DATA_PROTECTION 14
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#define UT_MEM_ADDRESS_NOT_ALIGNED 15
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#define UT_PRIVILEGED_ACTION 16
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#define UT_ASYNC_DATA_ERROR 17
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#define UT_TRAP_INSTRUCTION_16 18
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#define UT_TRAP_INSTRUCTION_17 19
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#define UT_TRAP_INSTRUCTION_18 20
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#define UT_TRAP_INSTRUCTION_19 21
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#define UT_TRAP_INSTRUCTION_20 22
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#define UT_TRAP_INSTRUCTION_21 23
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#define UT_TRAP_INSTRUCTION_22 24
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#define UT_TRAP_INSTRUCTION_23 25
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#define UT_TRAP_INSTRUCTION_24 26
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#define UT_TRAP_INSTRUCTION_25 27
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#define UT_TRAP_INSTRUCTION_26 28
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#define UT_TRAP_INSTRUCTION_27 29
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#define UT_TRAP_INSTRUCTION_28 30
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#define UT_TRAP_INSTRUCTION_29 31
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#define UT_TRAP_INSTRUCTION_30 32
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#define UT_TRAP_INSTRUCTION_31 33
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#define UT_MAX 34
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#define ST_SUNOS_SYSCALL 0
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#define ST_BREAKPOINT 1
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#define ST_DIVISION_BY_ZERO 2
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#define ST_FLUSH_WINDOWS 3 /* XXX implement! */
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#define ST_CLEAN_WINDOW 4
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#define ST_RANGE_CHECK 5
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#define ST_FIX_ALIGNMENT 6
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#define ST_INTEGER_OVERFLOW 7
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/* 8 is 32-bit ABI syscall (old solaris syscall?) */
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#define ST_BSD_SYSCALL 9
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#define ST_FP_RESTORE 10
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/* 11-15 are available */
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/* 16 is linux 32 bit syscall (but supposed to be reserved, grr) */
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/* 17 is old linux 64 bit syscall (but supposed to be reserved, grr) */
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/* 16-31 are reserved for user applications (utraps) */
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#define ST_GETCC 32 /* XXX implement! */
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#define ST_SETCC 33 /* XXX implement! */
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#define ST_GETPSR 34 /* XXX implement! */
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#define ST_SETPSR 35 /* XXX implement! */
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/* 36-63 are available */
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#define ST_SOLARIS_SYSCALL 64
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#define ST_SYSCALL 65
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#define ST_SYSCALL32 66
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/* 67 is reserved to OS source licensee */
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/* 68 is return from deferred trap (not supported) */
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/* 69-95 are reserved to SPARC international */
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/* 96-108 are available */
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/* 109 is linux 64 bit syscall */
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/* 110 is linux 64 bit getcontext (?) */
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/* 111 is linux 64 bit setcontext (?) */
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/* 112-255 are available */
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#define UTH_NOCHANGE (-1)
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#ifndef __ASM__
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typedef int utrap_entry_t;
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typedef void *utrap_handler_t;
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#endif
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#endif
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