This file creates register sets based on the runtime specification.
The advantage of using register sets is that you don't focus on each
register seperately, but instead instroduce a level of abstraction.
This reduces the chance of errors, and also simplifies the code.
The register sers form the basis of everything register.
The sets in this file are:
struct _special
contains all of the control related registers, such as instruction
pointer and stack pointer. It also contains interrupt specific registers
like the faulting address. The set is roughly split in 3 groups. The
first contains the registers that define a context or thread. This is
the only group that the kernel needs to switch threads. The second group
contains registers needed in addition to the first group needed to switch
userland threads. This group contains the thread pointer and the FP control
register. The third group contains those registers we need for execption
handling and are used on top of the first two groups.
struct _callee_saved, struct _callee_saved_fp
These sets contain the preserved registers, including the NaT after
spilling. The general registers (including branch registers) are
seperated from the FP registers for ptrace(2).
struct _caller_saved, struct _caller_saved_fp
These sets contain the scratch registers based on SDM 2.1, This means that
both ar.csd and ar.ccd are included here, even though they contain ia32
segment register descriptions. We keep seperate NaT bits for scratch and
preserved registers, because they are never saved/restored at the same
time.
struct _high_fp
The upper 96 FP registers that can be enabled/disabled seperately on
the CPU from the lower 32 FP registers. Due to the size of this set,
we treat them specially, even though they are defined as scratch
registers.
CVS ----------------------------------------------------------------------
2003-05-15 08:36:03 +00:00
|
|
|
/*
|
|
|
|
|
* Copyright (c) 2002, 2003 Marcel Moolenaar
|
|
|
|
|
* All rights reserved.
|
|
|
|
|
*
|
|
|
|
|
* 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.
|
|
|
|
|
*
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
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|
|
|
* 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.
|
|
|
|
|
*
|
|
|
|
|
* $FreeBSD$
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef _MACHINE_REGSET_H_
|
|
|
|
|
#define _MACHINE_REGSET_H_
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Create register sets, based on the runtime specification. This allows
|
|
|
|
|
* us to better reuse code and to copy sets around more efficiently.
|
|
|
|
|
* Contexts are defined in terms of these sets. These include trapframe,
|
|
|
|
|
* sigframe, pcb, mcontext, reg and fpreg. Other candidates are unwind
|
|
|
|
|
* and coredump related contexts.
|
|
|
|
|
*
|
|
|
|
|
* Notes:
|
|
|
|
|
* o Constant registers (r0, f0 and f1) are not accounted for,
|
|
|
|
|
* o The stacked registers (r32-r127) are not accounted for,
|
|
|
|
|
* o Predicates are not split across sets.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* A single FP register. */
|
|
|
|
|
struct _ia64_fpreg {
|
|
|
|
|
unsigned char fpr_bits[16];
|
|
|
|
|
} __aligned(16);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Special registers.
|
|
|
|
|
*/
|
|
|
|
|
struct _special {
|
|
|
|
|
unsigned long sp;
|
|
|
|
|
unsigned long unat; /* NaT before spilling */
|
|
|
|
|
unsigned long rp;
|
|
|
|
|
unsigned long pr;
|
|
|
|
|
unsigned long pfs;
|
|
|
|
|
unsigned long bspstore;
|
|
|
|
|
unsigned long rnat;
|
|
|
|
|
unsigned long __spare;
|
|
|
|
|
/* Userland context and syscalls */
|
|
|
|
|
unsigned long tp;
|
|
|
|
|
unsigned long rsc;
|
|
|
|
|
unsigned long fpsr;
|
|
|
|
|
unsigned long psr;
|
|
|
|
|
/* ASYNC: Interrupt specific */
|
|
|
|
|
unsigned long gp;
|
|
|
|
|
unsigned long ndirty;
|
|
|
|
|
unsigned long cfm;
|
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|
|
|
unsigned long iip;
|
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|
|
|
unsigned long ifa;
|
|
|
|
|
unsigned long isr;
|
|
|
|
|
};
|
|
|
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|
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|
|
struct _high_fp {
|
2003-07-23 03:08:34 +00:00
|
|
|
struct _ia64_fpreg fr32;
|
|
|
|
|
struct _ia64_fpreg fr33;
|
|
|
|
|
struct _ia64_fpreg fr34;
|
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|
|
|
struct _ia64_fpreg fr35;
|
|
|
|
|
struct _ia64_fpreg fr36;
|
|
|
|
|
struct _ia64_fpreg fr37;
|
|
|
|
|
struct _ia64_fpreg fr38;
|
|
|
|
|
struct _ia64_fpreg fr39;
|
|
|
|
|
struct _ia64_fpreg fr40;
|
|
|
|
|
struct _ia64_fpreg fr41;
|
|
|
|
|
struct _ia64_fpreg fr42;
|
|
|
|
|
struct _ia64_fpreg fr43;
|
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|
|
|
struct _ia64_fpreg fr44;
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|
|
|
struct _ia64_fpreg fr45;
|
|
|
|
|
struct _ia64_fpreg fr46;
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|
|
|
|
struct _ia64_fpreg fr47;
|
|
|
|
|
struct _ia64_fpreg fr48;
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|
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|
struct _ia64_fpreg fr49;
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|
struct _ia64_fpreg fr50;
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|
struct _ia64_fpreg fr51;
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|
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|
struct _ia64_fpreg fr52;
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|
|
|
struct _ia64_fpreg fr53;
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|
|
struct _ia64_fpreg fr54;
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|
struct _ia64_fpreg fr55;
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|
struct _ia64_fpreg fr56;
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|
struct _ia64_fpreg fr57;
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|
struct _ia64_fpreg fr58;
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struct _ia64_fpreg fr59;
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|
|
struct _ia64_fpreg fr60;
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struct _ia64_fpreg fr61;
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|
struct _ia64_fpreg fr62;
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struct _ia64_fpreg fr63;
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struct _ia64_fpreg fr64;
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|
struct _ia64_fpreg fr65;
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struct _ia64_fpreg fr66;
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struct _ia64_fpreg fr67;
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|
struct _ia64_fpreg fr68;
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struct _ia64_fpreg fr69;
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struct _ia64_fpreg fr70;
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struct _ia64_fpreg fr71;
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|
struct _ia64_fpreg fr72;
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struct _ia64_fpreg fr73;
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struct _ia64_fpreg fr74;
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|
|
|
struct _ia64_fpreg fr75;
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|
|
|
struct _ia64_fpreg fr76;
|
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|
|
|
struct _ia64_fpreg fr77;
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|
|
|
struct _ia64_fpreg fr78;
|
|
|
|
|
struct _ia64_fpreg fr79;
|
|
|
|
|
struct _ia64_fpreg fr80;
|
|
|
|
|
struct _ia64_fpreg fr81;
|
|
|
|
|
struct _ia64_fpreg fr82;
|
|
|
|
|
struct _ia64_fpreg fr83;
|
|
|
|
|
struct _ia64_fpreg fr84;
|
|
|
|
|
struct _ia64_fpreg fr85;
|
|
|
|
|
struct _ia64_fpreg fr86;
|
|
|
|
|
struct _ia64_fpreg fr87;
|
|
|
|
|
struct _ia64_fpreg fr88;
|
|
|
|
|
struct _ia64_fpreg fr89;
|
|
|
|
|
struct _ia64_fpreg fr90;
|
|
|
|
|
struct _ia64_fpreg fr91;
|
|
|
|
|
struct _ia64_fpreg fr92;
|
|
|
|
|
struct _ia64_fpreg fr93;
|
|
|
|
|
struct _ia64_fpreg fr94;
|
|
|
|
|
struct _ia64_fpreg fr95;
|
|
|
|
|
struct _ia64_fpreg fr96;
|
|
|
|
|
struct _ia64_fpreg fr97;
|
|
|
|
|
struct _ia64_fpreg fr98;
|
|
|
|
|
struct _ia64_fpreg fr99;
|
|
|
|
|
struct _ia64_fpreg fr100;
|
|
|
|
|
struct _ia64_fpreg fr101;
|
|
|
|
|
struct _ia64_fpreg fr102;
|
|
|
|
|
struct _ia64_fpreg fr103;
|
|
|
|
|
struct _ia64_fpreg fr104;
|
|
|
|
|
struct _ia64_fpreg fr105;
|
|
|
|
|
struct _ia64_fpreg fr106;
|
|
|
|
|
struct _ia64_fpreg fr107;
|
|
|
|
|
struct _ia64_fpreg fr108;
|
|
|
|
|
struct _ia64_fpreg fr109;
|
|
|
|
|
struct _ia64_fpreg fr110;
|
|
|
|
|
struct _ia64_fpreg fr111;
|
|
|
|
|
struct _ia64_fpreg fr112;
|
|
|
|
|
struct _ia64_fpreg fr113;
|
|
|
|
|
struct _ia64_fpreg fr114;
|
|
|
|
|
struct _ia64_fpreg fr115;
|
|
|
|
|
struct _ia64_fpreg fr116;
|
|
|
|
|
struct _ia64_fpreg fr117;
|
|
|
|
|
struct _ia64_fpreg fr118;
|
|
|
|
|
struct _ia64_fpreg fr119;
|
|
|
|
|
struct _ia64_fpreg fr120;
|
|
|
|
|
struct _ia64_fpreg fr121;
|
|
|
|
|
struct _ia64_fpreg fr122;
|
|
|
|
|
struct _ia64_fpreg fr123;
|
|
|
|
|
struct _ia64_fpreg fr124;
|
|
|
|
|
struct _ia64_fpreg fr125;
|
|
|
|
|
struct _ia64_fpreg fr126;
|
|
|
|
|
struct _ia64_fpreg fr127;
|
This file creates register sets based on the runtime specification.
The advantage of using register sets is that you don't focus on each
register seperately, but instead instroduce a level of abstraction.
This reduces the chance of errors, and also simplifies the code.
The register sers form the basis of everything register.
The sets in this file are:
struct _special
contains all of the control related registers, such as instruction
pointer and stack pointer. It also contains interrupt specific registers
like the faulting address. The set is roughly split in 3 groups. The
first contains the registers that define a context or thread. This is
the only group that the kernel needs to switch threads. The second group
contains registers needed in addition to the first group needed to switch
userland threads. This group contains the thread pointer and the FP control
register. The third group contains those registers we need for execption
handling and are used on top of the first two groups.
struct _callee_saved, struct _callee_saved_fp
These sets contain the preserved registers, including the NaT after
spilling. The general registers (including branch registers) are
seperated from the FP registers for ptrace(2).
struct _caller_saved, struct _caller_saved_fp
These sets contain the scratch registers based on SDM 2.1, This means that
both ar.csd and ar.ccd are included here, even though they contain ia32
segment register descriptions. We keep seperate NaT bits for scratch and
preserved registers, because they are never saved/restored at the same
time.
struct _high_fp
The upper 96 FP registers that can be enabled/disabled seperately on
the CPU from the lower 32 FP registers. Due to the size of this set,
we treat them specially, even though they are defined as scratch
registers.
CVS ----------------------------------------------------------------------
2003-05-15 08:36:03 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Preserved registers.
|
|
|
|
|
*/
|
|
|
|
|
struct _callee_saved {
|
|
|
|
|
unsigned long unat; /* NaT after spilling. */
|
|
|
|
|
unsigned long gr4;
|
|
|
|
|
unsigned long gr5;
|
|
|
|
|
unsigned long gr6;
|
|
|
|
|
unsigned long gr7;
|
|
|
|
|
unsigned long br1;
|
|
|
|
|
unsigned long br2;
|
|
|
|
|
unsigned long br3;
|
|
|
|
|
unsigned long br4;
|
|
|
|
|
unsigned long br5;
|
|
|
|
|
unsigned long lc;
|
|
|
|
|
unsigned long __spare;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct _callee_saved_fp {
|
|
|
|
|
struct _ia64_fpreg fr2;
|
|
|
|
|
struct _ia64_fpreg fr3;
|
|
|
|
|
struct _ia64_fpreg fr4;
|
|
|
|
|
struct _ia64_fpreg fr5;
|
|
|
|
|
struct _ia64_fpreg fr16;
|
|
|
|
|
struct _ia64_fpreg fr17;
|
|
|
|
|
struct _ia64_fpreg fr18;
|
|
|
|
|
struct _ia64_fpreg fr19;
|
|
|
|
|
struct _ia64_fpreg fr20;
|
|
|
|
|
struct _ia64_fpreg fr21;
|
|
|
|
|
struct _ia64_fpreg fr22;
|
|
|
|
|
struct _ia64_fpreg fr23;
|
|
|
|
|
struct _ia64_fpreg fr24;
|
|
|
|
|
struct _ia64_fpreg fr25;
|
|
|
|
|
struct _ia64_fpreg fr26;
|
|
|
|
|
struct _ia64_fpreg fr27;
|
|
|
|
|
struct _ia64_fpreg fr28;
|
|
|
|
|
struct _ia64_fpreg fr29;
|
|
|
|
|
struct _ia64_fpreg fr30;
|
|
|
|
|
struct _ia64_fpreg fr31;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Scratch registers.
|
|
|
|
|
*/
|
|
|
|
|
struct _caller_saved {
|
|
|
|
|
unsigned long unat; /* NaT after spilling. */
|
|
|
|
|
unsigned long gr2;
|
|
|
|
|
unsigned long gr3;
|
|
|
|
|
unsigned long gr8;
|
|
|
|
|
unsigned long gr9;
|
|
|
|
|
unsigned long gr10;
|
|
|
|
|
unsigned long gr11;
|
|
|
|
|
unsigned long gr14;
|
|
|
|
|
unsigned long gr15;
|
|
|
|
|
unsigned long gr16;
|
|
|
|
|
unsigned long gr17;
|
|
|
|
|
unsigned long gr18;
|
|
|
|
|
unsigned long gr19;
|
|
|
|
|
unsigned long gr20;
|
|
|
|
|
unsigned long gr21;
|
|
|
|
|
unsigned long gr22;
|
|
|
|
|
unsigned long gr23;
|
|
|
|
|
unsigned long gr24;
|
|
|
|
|
unsigned long gr25;
|
|
|
|
|
unsigned long gr26;
|
|
|
|
|
unsigned long gr27;
|
|
|
|
|
unsigned long gr28;
|
|
|
|
|
unsigned long gr29;
|
|
|
|
|
unsigned long gr30;
|
|
|
|
|
unsigned long gr31;
|
|
|
|
|
unsigned long br6;
|
|
|
|
|
unsigned long br7;
|
|
|
|
|
unsigned long ccv;
|
|
|
|
|
unsigned long csd;
|
|
|
|
|
unsigned long ssd;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct _caller_saved_fp {
|
|
|
|
|
struct _ia64_fpreg fr6;
|
|
|
|
|
struct _ia64_fpreg fr7;
|
|
|
|
|
struct _ia64_fpreg fr8;
|
|
|
|
|
struct _ia64_fpreg fr9;
|
|
|
|
|
struct _ia64_fpreg fr10;
|
|
|
|
|
struct _ia64_fpreg fr11;
|
|
|
|
|
struct _ia64_fpreg fr12;
|
|
|
|
|
struct _ia64_fpreg fr13;
|
|
|
|
|
struct _ia64_fpreg fr14;
|
|
|
|
|
struct _ia64_fpreg fr15;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#ifdef _KERNEL
|
2003-05-31 21:02:18 +00:00
|
|
|
void restore_callee_saved(const struct _callee_saved *);
|
|
|
|
|
void restore_callee_saved_fp(const struct _callee_saved_fp *);
|
|
|
|
|
void restore_high_fp(const struct _high_fp *);
|
This file creates register sets based on the runtime specification.
The advantage of using register sets is that you don't focus on each
register seperately, but instead instroduce a level of abstraction.
This reduces the chance of errors, and also simplifies the code.
The register sers form the basis of everything register.
The sets in this file are:
struct _special
contains all of the control related registers, such as instruction
pointer and stack pointer. It also contains interrupt specific registers
like the faulting address. The set is roughly split in 3 groups. The
first contains the registers that define a context or thread. This is
the only group that the kernel needs to switch threads. The second group
contains registers needed in addition to the first group needed to switch
userland threads. This group contains the thread pointer and the FP control
register. The third group contains those registers we need for execption
handling and are used on top of the first two groups.
struct _callee_saved, struct _callee_saved_fp
These sets contain the preserved registers, including the NaT after
spilling. The general registers (including branch registers) are
seperated from the FP registers for ptrace(2).
struct _caller_saved, struct _caller_saved_fp
These sets contain the scratch registers based on SDM 2.1, This means that
both ar.csd and ar.ccd are included here, even though they contain ia32
segment register descriptions. We keep seperate NaT bits for scratch and
preserved registers, because they are never saved/restored at the same
time.
struct _high_fp
The upper 96 FP registers that can be enabled/disabled seperately on
the CPU from the lower 32 FP registers. Due to the size of this set,
we treat them specially, even though they are defined as scratch
registers.
CVS ----------------------------------------------------------------------
2003-05-15 08:36:03 +00:00
|
|
|
void save_callee_saved(struct _callee_saved *);
|
|
|
|
|
void save_callee_saved_fp(struct _callee_saved_fp *);
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void save_high_fp(struct _high_fp *);
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#endif
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#endif /* _MACHINE_REGSET_H_ */
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