diff options
Diffstat (limited to 'klibc/include/arch/sparc/machine')
| -rw-r--r-- | klibc/include/arch/sparc/machine/asm.h | 192 | ||||
| -rw-r--r-- | klibc/include/arch/sparc/machine/frame.h | 138 | ||||
| -rw-r--r-- | klibc/include/arch/sparc/machine/trap.h | 141 |
3 files changed, 471 insertions, 0 deletions
diff --git a/klibc/include/arch/sparc/machine/asm.h b/klibc/include/arch/sparc/machine/asm.h new file mode 100644 index 0000000000..b622bd8cf1 --- /dev/null +++ b/klibc/include/arch/sparc/machine/asm.h @@ -0,0 +1,192 @@ +/* $NetBSD: asm.h,v 1.14 2002/07/20 08:37:30 mrg Exp $ */ + +/* + * Copyright (c) 1994 Allen Briggs + * All rights reserved. + * + * Gleaned from locore.s and sun3 asm.h which had the following copyrights: + * locore.s: + * Copyright (c) 1988 University of Utah. + * Copyright (c) 1982, 1990 The Regents of the University of California. + * sun3/include/asm.h: + * Copyright (c) 1993 Adam Glass + * Copyright (c) 1990 The Regents of the University of California. + * + * 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. 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, Berkeley and its contributors. + * 4. 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. + */ + +#ifndef _ASM_H_ +#define _ASM_H_ + +/* Pull in CCFSZ, CC64FSZ, and BIAS from frame.h */ +#ifndef _LOCORE +#define _LOCORE +#endif +#include <machine/frame.h> + +#ifdef __ELF__ +#define _C_LABEL(name) name +#else +#ifdef __STDC__ +#define _C_LABEL(name) _ ## name +#else +#define _C_LABEL(name) _/**/name +#endif +#endif +#define _ASM_LABEL(name) name + +#ifdef PIC +/* + * PIC_PROLOGUE() is akin to the compiler generated function prologue for + * PIC code. It leaves the address of the Global Offset Table in DEST, + * clobbering register TMP in the process. + * + * We can use two code sequences. We can read the %pc or use the call + * instruction that saves the pc in %o7. Call requires the branch unit and + * IEU1, and clobbers %o7 which needs to be restored. This instruction + * sequence takes about 4 cycles due to instruction interdependence. Reading + * the pc takes 4 cycles to dispatch and is always dispatched alone. That + * sequence takes 7 cycles. + */ +#ifdef __arch64__ +#define PIC_PROLOGUE(dest,tmp) \ + mov %o7, tmp; \ + sethi %hi(_GLOBAL_OFFSET_TABLE_-4),dest; \ + call 0f; \ + or dest,%lo(_GLOBAL_OFFSET_TABLE_+4),dest; \ +0: \ + add dest,%o7,dest; \ + mov tmp, %o7 +#else +#define PIC_PROLOGUE(dest,tmp) \ + mov %o7,tmp; 3: call 4f; nop; 4: \ + sethi %hi(_C_LABEL(_GLOBAL_OFFSET_TABLE_)-(3b-.)),dest; \ + or dest,%lo(_C_LABEL(_GLOBAL_OFFSET_TABLE_)-(3b-.)),dest; \ + add dest,%o7,dest; mov tmp,%o7 +#endif + +/* + * PICCY_SET() does the equivalent of a `set var, %dest' instruction in + * a PIC-like way, but without involving the Global Offset Table. This + * only works for VARs defined in the same file *and* in the text segment. + */ +#ifdef __arch64__ +#define PICCY_SET(var,dest,tmp) \ + 3: rd %pc, tmp; add tmp,(var-3b),dest +#else +#define PICCY_SET(var,dest,tmp) \ + mov %o7,tmp; 3: call 4f; nop; 4: \ + add %o7,(var-3b),dest; mov tmp,%o7 +#endif +#else +#define PIC_PROLOGUE(dest,tmp) +#define PICCY_OFFSET(var,dest,tmp) +#endif + +#define FTYPE(x) .type x,@function +#define OTYPE(x) .type x,@object + +#define _ENTRY(name) \ + .align 4; .globl name; .proc 1; FTYPE(name); name: + +#ifdef GPROF +/* see _MCOUNT_ENTRY in profile.h */ +#ifdef __ELF__ +#ifdef __arch64__ +#define _PROF_PROLOGUE \ + .data; .align 8; 1: .uaword 0; .uaword 0; \ + .text; save %sp,-CC64FSZ,%sp; sethi %hi(1b),%o0; call _mcount; \ + or %o0,%lo(1b),%o0; restore +#else +#define _PROF_PROLOGUE \ + .data; .align 4; 1: .long 0; \ + .text; save %sp,-96,%sp; sethi %hi(1b),%o0; call _mcount; \ + or %o0,%lo(1b),%o0; restore +#endif +#else +#ifdef __arch64__ +#define _PROF_PROLOGUE \ + .data; .align 8; 1: .uaword 0; .uaword 0; \ + .text; save %sp,-CC64FSZ,%sp; sethi %hi(1b),%o0; call mcount; \ + or %o0,%lo(1b),%o0; restore +#else +#define _PROF_PROLOGUE \ + .data; .align 4; 1: .long 0; \ + .text; save %sp,-96,%sp; sethi %hi(1b),%o0; call mcount; \ + or %o0,%lo(1b),%o0; restore +#endif +#endif +#else +#define _PROF_PROLOGUE +#endif + +#define ENTRY(name) _ENTRY(_C_LABEL(name)); _PROF_PROLOGUE +#define ENTRY_NOPROFILE(name) _ENTRY(_C_LABEL(name)) +#define ASENTRY(name) _ENTRY(_ASM_LABEL(name)); _PROF_PROLOGUE +#define FUNC(name) ASENTRY(name) +#define RODATA(name) .align 4; .text; .globl _C_LABEL(name); \ + OTYPE(_C_LABEL(name)); _C_LABEL(name): + + +#define ASMSTR .asciz + +#define RCSID(name) .asciz name + +#ifdef __ELF__ +#define WEAK_ALIAS(alias,sym) \ + .weak alias; \ + alias = sym +#endif + +/* + * WARN_REFERENCES: create a warning if the specified symbol is referenced. + */ +#ifdef __ELF__ +#ifdef __STDC__ +#define WARN_REFERENCES(_sym,_msg) \ + .section .gnu.warning. ## _sym ; .ascii _msg ; .text +#else +#define WARN_REFERENCES(_sym,_msg) \ + .section .gnu.warning./**/_sym ; .ascii _msg ; .text +#endif /* __STDC__ */ +#else +#ifdef __STDC__ +#define __STRING(x) #x +#define WARN_REFERENCES(sym,msg) \ + .stabs msg ## ,30,0,0,0 ; \ + .stabs __STRING(_ ## sym) ## ,1,0,0,0 +#else +#define __STRING(x) "x" +#define WARN_REFERENCES(sym,msg) \ + .stabs msg,30,0,0,0 ; \ + .stabs __STRING(_/**/sym),1,0,0,0 +#endif /* __STDC__ */ +#endif /* __ELF__ */ + +#endif /* _ASM_H_ */ diff --git a/klibc/include/arch/sparc/machine/frame.h b/klibc/include/arch/sparc/machine/frame.h new file mode 100644 index 0000000000..b09175c7f4 --- /dev/null +++ b/klibc/include/arch/sparc/machine/frame.h @@ -0,0 +1,138 @@ +/* $NetBSD: frame.h,v 1.4 2001/12/04 00:05:05 darrenr 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. 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, Berkeley and its contributors. + * 4. 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. + * + * @(#)frame.h 8.1 (Berkeley) 6/11/93 + */ + +#if defined(_KERNEL_OPT) +#include "opt_sparc_arch.h" +#endif + +/* + * Sparc stack frame format. + * + * Note that the contents of each stack frame may be held only in + * machine register windows. In order to get an accurate picture + * of the frame, you must first force the kernel to write any such + * windows to the stack. + */ +#ifndef _LOCORE +#ifndef SUN4U +struct frame { + int32_t fr_local[8]; /* space to save locals (%l0..%l7) */ + int32_t fr_arg[6]; /* space to save arguments (%i0..%i5) */ + struct frame *fr_fp; /* space to save frame pointer (%i6) */ + int32_t fr_pc; /* space to save return pc (%i7) */ + /* + * SunOS reserves another 8 words here; this is pointless + * but we do it for compatibility. + */ + int32_t fr_xxx; /* `structure return pointer' (unused) */ + int32_t fr_argd[6]; /* `arg dump area' (lunacy) */ + int32_t fr_argx[1]; /* arg extension (args 7..n; variable size) */ +}; +#else +struct frame32 { + int32_t fr_local[8]; /* space to save locals (%l0..%l7) */ + int32_t fr_arg[6]; /* space to save arguments (%i0..%i5) */ + u_int32_t fr_fp; /* space to save frame pointer (%i6) */ + u_int32_t fr_pc; /* space to save return pc (%i7) */ + /* + * SunOS reserves another 8 words here; this is pointless + * but we do it for compatibility. + */ + int32_t fr_xxx; /* `structure return pointer' (unused) */ + int32_t fr_argd[6]; /* `arg dump area' (lunacy) */ + int32_t fr_argx[1]; /* arg extension (args 7..n; variable size) */ +}; +#endif +#endif + +/* + * CCFSZ (C Compiler Frame SiZe) is the size of a stack frame required if + * a function is to call C code. It should be just 64, but Sun defined + * their frame with space to hold arguments 0 through 5 (plus some junk), + * and varargs routines (such as kprintf) demand this, and gcc uses this + * area at times anyway. + */ +#define CCFSZ 96 + +/* + * Sparc v9 stack frame format. + * + * Note that the contents of each stack frame may be held only in + * machine register windows. In order to get an accurate picture + * of the frame, you must first force the kernel to write any such + * windows to the stack. + * + * V9 frames have an odd bias, so you can tall a v9 frame from + * a v8 frame by testing the stack pointer's lsb. + */ +#if !defined(_LOCORE) && !defined(_LIBC) +struct frame64 { + int64_t fr_local[8]; /* space to save locals (%l0..%l7) */ + int64_t fr_arg[6]; /* space to save arguments (%i0..%i5) */ + u_int64_t fr_fp; /* space to save frame pointer (%i6) */ + u_int64_t fr_pc; /* space to save return pc (%i7) */ + /* + * SVR4 reserves a bunch of extra stuff. + */ + int64_t fr_argd[6]; /* `register save area' (lunacy) */ + int64_t fr_argx[0]; /* arg extension (args 7..n; variable size) */ +}; + +#define v9next_frame(f) ((struct frame64*)(f->fr_fp+BIAS)) +#endif + +/* + * CC64FSZ (C Compiler 64-bit Frame SiZe) is the size of a stack frame used + * by the compiler in 64-bit mode. It is (16)*8; space for 8 ins, 8 outs. + */ +#define CC64FSZ 176 + +/* + * v9 stacks all have a bias of 2047 added to the %sp and %fp, so you can easily + * detect it by testing the register for an odd value. Why 2K-1 I don't know. + */ +#define BIAS (2048-1) + diff --git a/klibc/include/arch/sparc/machine/trap.h b/klibc/include/arch/sparc/machine/trap.h new file mode 100644 index 0000000000..42c3ef6ae2 --- /dev/null +++ b/klibc/include/arch/sparc/machine/trap.h @@ -0,0 +1,141 @@ +/* $NetBSD: trap.h,v 1.11 1999/01/20 00:15:08 pk 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. 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, Berkeley and its contributors. + * 4. 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 */ +/* through 0x23 unused */ +#define T_CPDISABLED 0x24 /* (5) coprocessor instr while disabled */ +#define T_UNIMPLFLUSH 0x25 /* Unimplemented FLUSH */ +/* through 0x27 unused */ +#define T_CPEXCEPTION 0x28 /* (9) coprocessor exception */ +/* 0x29 unused */ +#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 /* division routine was handed 0 */ +#define T_FLUSHWIN 0x83 /* flush windows */ +#define T_CLEANWIN 0x84 /* provide clean windows */ +#define T_RANGECHECK 0x85 /* ? */ +#define T_FIXALIGN 0x86 /* fix up unaligned accesses */ +#define T_INTOF 0x87 /* integer overflow ? */ +#define T_SVR4_SYSCALL 0x88 /* SVR4 system call */ +#define T_BSD_SYSCALL 0x89 /* BSD system call */ +#define T_KGDB_EXEC 0x8a /* for kernel gdb */ + +/* 0x8b..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) */ + +/* + * `software trap' macros to keep people happy (sparc v8 manual says not + * to set the upper bits). + */ +#define ST_BREAKPOINT (T_BREAKPOINT & 0x7f) +#define ST_DIV0 (T_DIV0 & 0x7f) +#define ST_FLUSHWIN (T_FLUSHWIN & 0x7f) +#define ST_SYSCALL (T_SUN_SYSCALL & 0x7f) + +#endif /* _MACHINE_TRAP_H_ */ |