b8f480ab94
will use the function to construct a siginfo structure and use the result to export to userland. Reviewed by: julian
797 lines
18 KiB
C
797 lines
18 KiB
C
/*-
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* Copyright (c) 2001 Jake Burkholder.
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* Copyright (c) 1992 Terrence R. Lambert.
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* Copyright (c) 1982, 1987, 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
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* from: FreeBSD: src/sys/i386/i386/machdep.c,v 1.477 2001/08/27
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* $FreeBSD$
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*/
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#include "opt_compat.h"
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#include "opt_ddb.h"
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#include "opt_msgbuf.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/cons.h>
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#include <sys/imgact.h>
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#include <sys/kernel.h>
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#include <sys/ktr.h>
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#include <sys/linker.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/msgbuf.h>
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#include <sys/mutex.h>
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#include <sys/pcpu.h>
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#include <sys/proc.h>
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#include <sys/reboot.h>
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#include <sys/bio.h>
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#include <sys/buf.h>
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#include <sys/bus.h>
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#include <sys/eventhandler.h>
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#include <sys/interrupt.h>
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#include <sys/ptrace.h>
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#include <sys/signalvar.h>
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#include <sys/smp.h>
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#include <sys/sysent.h>
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#include <sys/sysproto.h>
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#include <sys/timetc.h>
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#include <sys/user.h>
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#include <sys/ucontext.h>
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#include <sys/user.h>
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#include <sys/ucontext.h>
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#include <sys/exec.h>
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#include <dev/ofw/openfirm.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_object.h>
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#include <vm/vm_page.h>
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#include <vm/vm_map.h>
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#include <vm/vm_pager.h>
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#include <vm/vm_extern.h>
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#include <ddb/ddb.h>
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#include <machine/cache.h>
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#include <machine/clock.h>
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#include <machine/cpu.h>
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#include <machine/fp.h>
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#include <machine/fsr.h>
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#include <machine/intr_machdep.h>
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#include <machine/md_var.h>
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#include <machine/metadata.h>
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#include <machine/ofw_machdep.h>
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#include <machine/ofw_mem.h>
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#include <machine/smp.h>
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#include <machine/pmap.h>
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#include <machine/pstate.h>
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#include <machine/reg.h>
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#include <machine/sigframe.h>
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#include <machine/tick.h>
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#include <machine/tlb.h>
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#include <machine/tstate.h>
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#include <machine/upa.h>
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#include <machine/ver.h>
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typedef int ofw_vec_t(void *);
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struct tlb_entry *kernel_tlbs;
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int kernel_tlb_slots;
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int cold = 1;
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long Maxmem;
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char pcpu0[PCPU_PAGES * PAGE_SIZE];
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char uarea0[UAREA_PAGES * PAGE_SIZE];
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struct trapframe frame0;
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vm_offset_t kstack0;
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vm_paddr_t kstack0_phys;
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struct kva_md_info kmi;
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u_long ofw_vec;
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u_long ofw_tba;
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static struct timecounter tick_tc;
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char sparc64_model[32];
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static int cpu_use_vis = 1;
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cpu_block_copy_t *cpu_block_copy;
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cpu_block_zero_t *cpu_block_zero;
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static timecounter_get_t tick_get_timecount;
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void sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3,
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ofw_vec_t *vec);
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void sparc64_shutdown_final(void *dummy, int howto);
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static void cpu_startup(void *);
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SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL);
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CTASSERT((1 << INT_SHIFT) == sizeof(int));
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CTASSERT((1 << PTR_SHIFT) == sizeof(char *));
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CTASSERT(sizeof(struct reg) == 256);
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CTASSERT(sizeof(struct fpreg) == 272);
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CTASSERT(sizeof(struct __mcontext) == 512);
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CTASSERT((sizeof(struct pcb) & (64 - 1)) == 0);
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CTASSERT((offsetof(struct pcb, pcb_kfp) & (64 - 1)) == 0);
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CTASSERT((offsetof(struct pcb, pcb_ufp) & (64 - 1)) == 0);
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CTASSERT(sizeof(struct pcb) <= ((KSTACK_PAGES * PAGE_SIZE) / 8));
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CTASSERT(sizeof(struct pcpu) <= ((PCPU_PAGES * PAGE_SIZE) / 2));
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static void
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cpu_startup(void *arg)
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{
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vm_paddr_t physsz;
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int i;
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tick_tc.tc_get_timecount = tick_get_timecount;
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tick_tc.tc_poll_pps = NULL;
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tick_tc.tc_counter_mask = ~0u;
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tick_tc.tc_frequency = tick_freq;
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tick_tc.tc_name = "tick";
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tc_init(&tick_tc);
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physsz = 0;
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for (i = 0; i < sparc64_nmemreg; i++)
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physsz += sparc64_memreg[i].mr_size;
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printf("real memory = %lu (%lu MB)\n", physsz,
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physsz / (1024 * 1024));
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vm_ksubmap_init(&kmi);
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bufinit();
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vm_pager_bufferinit();
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EVENTHANDLER_REGISTER(shutdown_final, sparc64_shutdown_final, NULL,
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SHUTDOWN_PRI_LAST);
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printf("avail memory = %lu (%lu MB)\n", cnt.v_free_count * PAGE_SIZE,
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cnt.v_free_count / ((1024 * 1024) / PAGE_SIZE));
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if (bootverbose)
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printf("machine: %s\n", sparc64_model);
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cpu_identify(rdpr(ver), tick_freq, PCPU_GET(cpuid));
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}
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void
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cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t size)
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{
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struct intr_request *ir;
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int i;
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pcpu->pc_irtail = &pcpu->pc_irhead;
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for (i = 0; i < IR_FREE; i++) {
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ir = &pcpu->pc_irpool[i];
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ir->ir_next = pcpu->pc_irfree;
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pcpu->pc_irfree = ir;
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}
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}
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unsigned
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tick_get_timecount(struct timecounter *tc)
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{
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return ((unsigned)rd(tick));
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}
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void
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sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3, ofw_vec_t *vec)
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{
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phandle_t child;
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phandle_t root;
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struct pcpu *pc;
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vm_offset_t end;
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caddr_t kmdp;
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u_int clock;
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char *env;
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char type[8];
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end = 0;
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kmdp = NULL;
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/*
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* Find out what kind of cpu we have first, for anything that changes
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* behaviour.
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*/
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cpu_impl = VER_IMPL(rdpr(ver));
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/*
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* Initialize openfirmware (needed for console).
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*/
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OF_init(vec);
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/*
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* Parse metadata if present and fetch parameters. Must be before the
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* console is inited so cninit gets the right value of boothowto.
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*/
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if (mdp != NULL) {
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preload_metadata = mdp;
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kmdp = preload_search_by_type("elf kernel");
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if (kmdp != NULL) {
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boothowto = MD_FETCH(kmdp, MODINFOMD_HOWTO, int);
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kern_envp = MD_FETCH(kmdp, MODINFOMD_ENVP, char *);
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end = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t);
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kernel_tlb_slots = MD_FETCH(kmdp, MODINFOMD_DTLB_SLOTS,
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int);
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kernel_tlbs = (void *)preload_search_info(kmdp,
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MODINFO_METADATA | MODINFOMD_DTLB);
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}
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}
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/*
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* Initialize the console before printing anything.
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*/
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cninit();
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/*
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* Panic is there is no metadata. Most likely the kernel was booted
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* directly, instead of through loader(8).
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*/
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if (mdp == NULL || kmdp == NULL) {
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printf("sparc64_init: no loader metadata.\n"
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"This probably means you are not using loader(8).\n");
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panic("sparc64_init");
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}
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/*
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* Sanity check the kernel end, which is important.
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*/
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if (end == 0) {
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printf("sparc64_init: warning, kernel end not specified.\n"
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"Attempting to continue anyway.\n");
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end = (vm_offset_t)_end;
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}
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root = OF_peer(0);
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for (child = OF_child(root); child != 0; child = OF_peer(child)) {
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OF_getprop(child, "device_type", type, sizeof(type));
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if (strcmp(type, "cpu") == 0)
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break;
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}
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if (child == 0)
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panic("cpu_startup: no cpu\n");
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cache_init(child);
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getenv_int("machdep.use_vis", &cpu_use_vis);
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if (cpu_use_vis) {
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cpu_block_copy = spitfire_block_copy;
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cpu_block_zero = spitfire_block_zero;
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} else {
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cpu_block_copy = bcopy;
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cpu_block_zero = bzero;
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}
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#ifdef DDB
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kdb_init();
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#endif
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#ifdef SMP
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mp_tramp = mp_tramp_alloc();
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#endif
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/*
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* Initialize virtual memory and calculate physmem.
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*/
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pmap_bootstrap(end);
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/*
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* Initialize tunables.
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*/
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init_param1();
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init_param2(physmem);
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env = getenv("kernelname");
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if (env != NULL) {
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strlcpy(kernelname, env, sizeof(kernelname));
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freeenv(env);
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}
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/*
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* Disable tick for now.
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*/
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tick_stop();
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/*
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* Initialize the interrupt tables.
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*/
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intr_init1();
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/*
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* Initialize proc0 stuff (p_contested needs to be done early).
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*/
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proc_linkup(&proc0, &ksegrp0, &kse0, &thread0);
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proc0.p_md.md_sigtramp = NULL;
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proc0.p_md.md_utrap = NULL;
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proc0.p_uarea = (struct user *)uarea0;
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proc0.p_stats = &proc0.p_uarea->u_stats;
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thread0.td_kstack = kstack0;
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thread0.td_pcb = (struct pcb *)
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(thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;
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frame0.tf_tstate = TSTATE_IE | TSTATE_PEF | TSTATE_PRIV;
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thread0.td_frame = &frame0;
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/*
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* Prime our per-cpu data page for use. Note, we are using it for our
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* stack, so don't pass the real size (PAGE_SIZE) to pcpu_init or
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* it'll zero it out from under us.
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*/
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pc = (struct pcpu *)(pcpu0 + (PCPU_PAGES * PAGE_SIZE)) - 1;
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pcpu_init(pc, 0, sizeof(struct pcpu));
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pc->pc_curthread = &thread0;
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pc->pc_curpcb = thread0.td_pcb;
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pc->pc_mid = UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG));
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pc->pc_addr = (vm_offset_t)pcpu0;
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pc->pc_node = child;
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pc->pc_tlb_ctx = TLB_CTX_USER_MIN;
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pc->pc_tlb_ctx_min = TLB_CTX_USER_MIN;
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pc->pc_tlb_ctx_max = TLB_CTX_USER_MAX;
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/*
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* Initialize global registers.
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*/
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cpu_setregs(pc);
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/*
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* Initialize the message buffer (after setting trap table).
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*/
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msgbufinit(msgbufp, MSGBUF_SIZE);
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mutex_init();
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intr_init2();
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OF_getprop(PCPU_GET(node), "clock-frequency", &clock, sizeof(clock));
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tick_init(clock);
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OF_getprop(root, "name", sparc64_model, sizeof(sparc64_model) - 1);
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}
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void
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set_openfirm_callback(ofw_vec_t *vec)
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{
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ofw_tba = rdpr(tba);
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ofw_vec = (u_long)vec;
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}
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void
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sendsig(sig_t catcher, int sig, sigset_t *mask, u_long code)
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{
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struct trapframe *tf;
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struct sigframe *sfp;
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struct sigacts *psp;
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struct sigframe sf;
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struct thread *td;
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struct frame *fp;
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struct proc *p;
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int oonstack;
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u_long sp;
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oonstack = 0;
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td = curthread;
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p = td->td_proc;
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PROC_LOCK_ASSERT(p, MA_OWNED);
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psp = p->p_sigacts;
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mtx_assert(&psp->ps_mtx, MA_OWNED);
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tf = td->td_frame;
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sp = tf->tf_sp + SPOFF;
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oonstack = sigonstack(sp);
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CTR4(KTR_SIG, "sendsig: td=%p (%s) catcher=%p sig=%d", td, p->p_comm,
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catcher, sig);
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/* Make sure we have a signal trampoline to return to. */
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if (p->p_md.md_sigtramp == NULL) {
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/*
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* No signal tramoline... kill the process.
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*/
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CTR0(KTR_SIG, "sendsig: no sigtramp");
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printf("sendsig: %s is too old, rebuild it\n", p->p_comm);
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sigexit(td, sig);
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/* NOTREACHED */
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}
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/* Save user context. */
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bzero(&sf, sizeof(sf));
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sf.sf_uc.uc_sigmask = *mask;
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sf.sf_uc.uc_stack = p->p_sigstk;
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sf.sf_uc.uc_stack.ss_flags = (p->p_flag & P_ALTSTACK)
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? ((oonstack) ? SS_ONSTACK : 0) : SS_DISABLE;
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bcopy(tf, &sf.sf_uc.uc_mcontext, sizeof(*tf));
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/* Allocate and validate space for the signal handler context. */
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if ((p->p_flag & P_ALTSTACK) != 0 && !oonstack &&
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SIGISMEMBER(psp->ps_sigonstack, sig)) {
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sfp = (struct sigframe *)(p->p_sigstk.ss_sp +
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p->p_sigstk.ss_size - sizeof(struct sigframe));
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} else
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sfp = (struct sigframe *)sp - 1;
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mtx_unlock(&psp->ps_mtx);
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PROC_UNLOCK(p);
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fp = (struct frame *)sfp - 1;
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/* Translate the signal if appropriate. */
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if (p->p_sysent->sv_sigtbl && sig <= p->p_sysent->sv_sigsize)
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sig = p->p_sysent->sv_sigtbl[_SIG_IDX(sig)];
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/* Build the argument list for the signal handler. */
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tf->tf_out[0] = sig;
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tf->tf_out[1] = (register_t)&sfp->sf_si;
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tf->tf_out[2] = (register_t)&sfp->sf_uc;
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tf->tf_out[4] = (register_t)catcher;
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/* Fill siginfo structure. */
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sf.sf_si.si_signo = sig;
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sf.sf_si.si_code = code;
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sf.sf_si.si_addr = (void *)tf->tf_sfar;
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/* Copy the sigframe out to the user's stack. */
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if (rwindow_save(td) != 0 || copyout(&sf, sfp, sizeof(*sfp)) != 0 ||
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suword(&fp->fr_in[6], tf->tf_out[6]) != 0) {
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/*
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* Something is wrong with the stack pointer.
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* ...Kill the process.
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*/
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CTR2(KTR_SIG, "sendsig: sigexit td=%p sfp=%p", td, sfp);
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PROC_LOCK(p);
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sigexit(td, SIGILL);
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/* NOTREACHED */
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}
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tf->tf_tpc = (u_long)p->p_md.md_sigtramp;
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tf->tf_tnpc = tf->tf_tpc + 4;
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tf->tf_sp = (u_long)fp - SPOFF;
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CTR3(KTR_SIG, "sendsig: return td=%p pc=%#lx sp=%#lx", td, tf->tf_tpc,
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tf->tf_sp);
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PROC_LOCK(p);
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mtx_lock(&psp->ps_mtx);
|
|
}
|
|
|
|
/*
|
|
* Build siginfo_t for SA thread
|
|
*/
|
|
void
|
|
thread_siginfo(int sig, u_long code, siginfo_t *si)
|
|
{
|
|
struct proc *p;
|
|
struct thread *td;
|
|
|
|
td = curthread;
|
|
p = td->td_proc;
|
|
PROC_LOCK_ASSERT(p, MA_OWNED);
|
|
|
|
bzero(si, sizeof(*si));
|
|
si->si_signo = sig;
|
|
si->si_code = code;
|
|
/* XXXKSE fill other fields */
|
|
}
|
|
|
|
#ifndef _SYS_SYSPROTO_H_
|
|
struct sigreturn_args {
|
|
ucontext_t *ucp;
|
|
};
|
|
#endif
|
|
|
|
/*
|
|
* MPSAFE
|
|
*/
|
|
int
|
|
sigreturn(struct thread *td, struct sigreturn_args *uap)
|
|
{
|
|
struct trapframe *tf;
|
|
struct proc *p;
|
|
mcontext_t *mc;
|
|
ucontext_t uc;
|
|
|
|
p = td->td_proc;
|
|
if (rwindow_save(td)) {
|
|
PROC_LOCK(p);
|
|
sigexit(td, SIGILL);
|
|
}
|
|
|
|
CTR2(KTR_SIG, "sigreturn: td=%p ucp=%p", td, uap->sigcntxp);
|
|
if (copyin(uap->sigcntxp, &uc, sizeof(uc)) != 0) {
|
|
CTR1(KTR_SIG, "sigreturn: efault td=%p", td);
|
|
return (EFAULT);
|
|
}
|
|
|
|
mc = &uc.uc_mcontext;
|
|
tf = td->td_frame;
|
|
if (!TSTATE_SECURE(mc->mc_tstate))
|
|
return (EINVAL);
|
|
mc->mc_wstate = tf->tf_wstate;
|
|
bcopy(mc, tf, sizeof(*tf));
|
|
|
|
PROC_LOCK(p);
|
|
td->td_sigmask = uc.uc_sigmask;
|
|
SIG_CANTMASK(td->td_sigmask);
|
|
signotify(td);
|
|
PROC_UNLOCK(p);
|
|
|
|
CTR4(KTR_SIG, "sigreturn: return td=%p pc=%#lx sp=%#lx tstate=%#lx",
|
|
td, tf->tf_tpc, tf->tf_sp, tf->tf_tstate);
|
|
return (EJUSTRETURN);
|
|
}
|
|
|
|
#ifdef COMPAT_FREEBSD4
|
|
int
|
|
freebsd4_sigreturn(struct thread *td, struct freebsd4_sigreturn_args *uap)
|
|
{
|
|
|
|
return sigreturn(td, (struct sigreturn_args *)uap);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
get_mcontext(struct thread *td, mcontext_t *mc, int clear_ret)
|
|
{
|
|
struct trapframe *tf;
|
|
struct pcb *pcb;
|
|
|
|
tf = td->td_frame;
|
|
pcb = td->td_pcb;
|
|
bcopy(tf, mc, sizeof(*tf));
|
|
if (clear_ret != 0) {
|
|
mc->mc_out[0] = 0;
|
|
mc->mc_out[1] = 0;
|
|
}
|
|
mc->mc_flags = _MC_VERSION;
|
|
critical_enter();
|
|
if ((tf->tf_fprs & FPRS_FEF) != 0) {
|
|
savefpctx(pcb->pcb_ufp);
|
|
tf->tf_fprs &= ~FPRS_FEF;
|
|
pcb->pcb_flags |= PCB_FEF;
|
|
}
|
|
if ((pcb->pcb_flags & PCB_FEF) != 0) {
|
|
bcopy(pcb->pcb_ufp, mc->mc_fp, sizeof(mc->mc_fp));
|
|
mc->mc_fprs |= FPRS_FEF;
|
|
}
|
|
critical_exit();
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
set_mcontext(struct thread *td, const mcontext_t *mc)
|
|
{
|
|
struct trapframe *tf;
|
|
struct pcb *pcb;
|
|
uint64_t wstate;
|
|
|
|
if (!TSTATE_SECURE(mc->mc_tstate) ||
|
|
(mc->mc_flags & ((1L << _MC_VERSION_BITS) - 1)) != _MC_VERSION)
|
|
return (EINVAL);
|
|
tf = td->td_frame;
|
|
pcb = td->td_pcb;
|
|
wstate = tf->tf_wstate;
|
|
bcopy(mc, tf, sizeof(*tf));
|
|
tf->tf_wstate = wstate;
|
|
if ((mc->mc_fprs & FPRS_FEF) != 0) {
|
|
tf->tf_fprs = 0;
|
|
bcopy(mc->mc_fp, pcb->pcb_ufp, sizeof(pcb->pcb_ufp));
|
|
pcb->pcb_flags |= PCB_FEF;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Exit the kernel and execute a firmware call that will not return, as
|
|
* specified by the arguments.
|
|
*/
|
|
void
|
|
cpu_shutdown(void *args)
|
|
{
|
|
|
|
#ifdef SMP
|
|
cpu_mp_shutdown();
|
|
#endif
|
|
openfirmware_exit(args);
|
|
}
|
|
|
|
/*
|
|
* Duplicate OF_exit() with a different firmware call function that restores
|
|
* the trap table, otherwise a RED state exception is triggered in at least
|
|
* some firmware versions.
|
|
*/
|
|
void
|
|
cpu_halt(void)
|
|
{
|
|
static struct {
|
|
cell_t name;
|
|
cell_t nargs;
|
|
cell_t nreturns;
|
|
} args = {
|
|
(cell_t)"exit",
|
|
0,
|
|
0
|
|
};
|
|
|
|
cpu_shutdown(&args);
|
|
}
|
|
|
|
void
|
|
sparc64_shutdown_final(void *dummy, int howto)
|
|
{
|
|
static struct {
|
|
cell_t name;
|
|
cell_t nargs;
|
|
cell_t nreturns;
|
|
} args = {
|
|
(cell_t)"SUNW,power-off",
|
|
0,
|
|
0
|
|
};
|
|
|
|
/* Turn the power off? */
|
|
if ((howto & RB_POWEROFF) != 0)
|
|
cpu_shutdown(&args);
|
|
/* In case of halt, return to the firmware */
|
|
if ((howto & RB_HALT) != 0)
|
|
cpu_halt();
|
|
}
|
|
|
|
int
|
|
ptrace_set_pc(struct thread *td, u_long addr)
|
|
{
|
|
|
|
td->td_frame->tf_tpc = addr;
|
|
td->td_frame->tf_tnpc = addr + 4;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
ptrace_single_step(struct thread *td)
|
|
{
|
|
/* TODO; */
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
exec_setregs(struct thread *td, u_long entry, u_long stack, u_long ps_strings)
|
|
{
|
|
struct trapframe *tf;
|
|
struct md_utrap *ut;
|
|
struct pcb *pcb;
|
|
struct proc *p;
|
|
u_long sp;
|
|
|
|
/* XXX no cpu_exec */
|
|
p = td->td_proc;
|
|
p->p_md.md_sigtramp = NULL;
|
|
if ((ut = p->p_md.md_utrap) != NULL) {
|
|
ut->ut_refcnt--;
|
|
if (ut->ut_refcnt == 0)
|
|
free(ut, M_SUBPROC);
|
|
p->p_md.md_utrap = NULL;
|
|
}
|
|
|
|
pcb = td->td_pcb;
|
|
tf = td->td_frame;
|
|
sp = rounddown(stack, 16);
|
|
bzero(pcb, sizeof(*pcb));
|
|
bzero(tf, sizeof(*tf));
|
|
tf->tf_out[0] = stack;
|
|
tf->tf_out[3] = p->p_sysent->sv_psstrings;
|
|
tf->tf_out[6] = sp - SPOFF - sizeof(struct frame);
|
|
tf->tf_tnpc = entry + 4;
|
|
tf->tf_tpc = entry;
|
|
tf->tf_tstate = TSTATE_IE | TSTATE_PEF | TSTATE_MM_TSO;
|
|
|
|
td->td_retval[0] = tf->tf_out[0];
|
|
td->td_retval[1] = tf->tf_out[1];
|
|
}
|
|
|
|
void
|
|
Debugger(const char *msg)
|
|
{
|
|
|
|
printf("Debugger(\"%s\")\n", msg);
|
|
critical_enter();
|
|
breakpoint();
|
|
critical_exit();
|
|
}
|
|
|
|
int
|
|
fill_regs(struct thread *td, struct reg *regs)
|
|
{
|
|
|
|
bcopy(td->td_frame, regs, sizeof(*regs));
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
set_regs(struct thread *td, struct reg *regs)
|
|
{
|
|
struct trapframe *tf;
|
|
|
|
if (!TSTATE_SECURE(regs->r_tstate))
|
|
return (EINVAL);
|
|
tf = td->td_frame;
|
|
regs->r_wstate = tf->tf_wstate;
|
|
bcopy(regs, tf, sizeof(*regs));
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
fill_dbregs(struct thread *td, struct dbreg *dbregs)
|
|
{
|
|
|
|
return (ENOSYS);
|
|
}
|
|
|
|
int
|
|
set_dbregs(struct thread *td, struct dbreg *dbregs)
|
|
{
|
|
|
|
return (ENOSYS);
|
|
}
|
|
|
|
int
|
|
fill_fpregs(struct thread *td, struct fpreg *fpregs)
|
|
{
|
|
struct trapframe *tf;
|
|
struct pcb *pcb;
|
|
|
|
pcb = td->td_pcb;
|
|
tf = td->td_frame;
|
|
bcopy(pcb->pcb_ufp, fpregs->fr_regs, sizeof(fpregs->fr_regs));
|
|
fpregs->fr_fsr = tf->tf_fsr;
|
|
fpregs->fr_gsr = tf->tf_gsr;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
set_fpregs(struct thread *td, struct fpreg *fpregs)
|
|
{
|
|
struct trapframe *tf;
|
|
struct pcb *pcb;
|
|
|
|
pcb = td->td_pcb;
|
|
tf = td->td_frame;
|
|
tf->tf_fprs &= ~FPRS_FEF;
|
|
bcopy(fpregs->fr_regs, pcb->pcb_ufp, sizeof(pcb->pcb_ufp));
|
|
tf->tf_fsr = fpregs->fr_fsr;
|
|
tf->tf_gsr = fpregs->fr_gsr;
|
|
return (0);
|
|
}
|