Make hpcarm kernel build after arm/arm32 file move.
This commit is contained in:
toshii
parent
fa4e4d9668
commit
9221ef3b13
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@ -1,4 +1,4 @@
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# $NetBSD: files.hpcarm,v 1.22 2001/07/10 18:10:46 ichiro Exp $
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# $NetBSD: files.hpcarm,v 1.23 2001/07/29 15:21:33 toshii Exp $
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#
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# First try for arm-specific configuration info
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#
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@ -30,7 +30,6 @@ file arch/hpcarm/hpcarm/exception.S
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file arch/hpcarm/hpcarm/fault.c
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file arch/hpcarm/hpcarm/fusu.S
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file arch/hpcarm/hpcarm/intr.c
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file arch/hpcarm/hpcarm/machdep.c
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file arch/hpcarm/hpcarm/mem.c
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file arch/hpcarm/hpcarm/process_machdep.c
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file arch/hpcarm/hpcarm/procfs_machdep.c procfs
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@ -1,4 +1,4 @@
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/* $NetBSD: hpc_machdep.c,v 1.16 2001/07/28 18:12:46 chris Exp $ */
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/* $NetBSD: hpc_machdep.c,v 1.17 2001/07/29 15:21:34 toshii Exp $ */
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/*
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* Copyright (c) 1994-1998 Mark Brinicombe.
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@ -115,7 +115,8 @@ u_int cpu_reset_address = 0;
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BootConfig bootconfig; /* Boot config storage */
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struct bootinfo *bootinfo, bootinfo_storage;
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char booted_kernel[80];
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static char booted_kernel_storage[80];
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char *booted_kernel = booted_kernel_storage;
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paddr_t physical_start;
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paddr_t physical_freestart;
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@ -352,7 +353,7 @@ initarm(argc, argv, bi)
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kerneldatasize = ((kerneldatasize - 1) & ~(NBPG * 4 - 1)) + NBPG * 8;
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/* parse kernel args */
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strncpy(booted_kernel, *argv, sizeof(booted_kernel));
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strncpy(booted_kernel_storage, *argv, sizeof(booted_kernel_storage));
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for(argc--, argv++; argc; argc--, argv++)
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switch(**argv) {
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case 'a':
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@ -734,6 +735,18 @@ initarm(argc, argv, bi)
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return(kernelstack.pv_va + USPACE_SVC_STACK_TOP);
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}
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void
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consinit(void)
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{
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static int consinit_called = 0;
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if (consinit_called != 0)
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return;
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consinit_called = 1;
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cninit();
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}
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#ifdef DEBUG_BEFOREMMU
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cons_decl(sacom);
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void
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@ -1,794 +0,0 @@
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/* $NetBSD: machdep.c,v 1.12 2001/07/28 18:12:46 chris Exp $ */
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/*
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* Copyright (c) 1994-1998 Mark Brinicombe.
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* Copyright (c) 1994 Brini.
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* All rights reserved.
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*
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* This code is derived from software written for Brini by Mark Brinicombe
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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 Mark Brinicombe
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* for the NetBSD Project.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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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*/
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#include "opt_md.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/reboot.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.h>
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#include <sys/map.h>
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#include <sys/mount.h>
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#include <sys/vnode.h>
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#include <sys/msgbuf.h>
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#include <sys/device.h>
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#include <uvm/uvm_extern.h>
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#include <sys/sysctl.h>
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#include <sys/syscallargs.h>
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#include <dev/cons.h>
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#include <machine/db_machdep.h>
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#include <ddb/db_sym.h>
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#include <ddb/db_extern.h>
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#include <uvm/uvm_extern.h>
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#include <machine/signal.h>
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#include <machine/frame.h>
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#include <machine/cpu.h>
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#include <machine/katelib.h>
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#include <machine/pte.h>
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#include <machine/bootconfig.h>
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#include "opt_ipkdb.h"
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#include "md.h"
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#include "opt_mdsize.h"
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struct vm_map *exec_map = NULL;
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struct vm_map *mb_map = NULL;
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struct vm_map *phys_map = NULL;
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extern int physmem;
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#ifndef PMAP_STATIC_L1S
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extern int max_processes;
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#endif /* !PMAP_STATIC_L1S */
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pv_addr_t systempage;
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pv_addr_t kernelstack;
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/* the following is used externally (sysctl_hw) */
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char machine[] = MACHINE; /* from <machine/param.h> */
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char machine_arch[] = MACHINE_ARCH; /* from <machine/param.h> */
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/* Our exported CPU info; we can have only one. */
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struct cpu_info cpu_info_store;
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extern pt_entry_t msgbufpte;
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caddr_t msgbufaddr;
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extern paddr_t msgbufphys;
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#ifdef PMAP_DEBUG
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extern int pmap_debug_level;
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#endif
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int kernel_debug = 0;
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struct user *proc0paddr;
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extern char booted_kernel[];
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/* Prototypes */
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void consinit __P((void));
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void map_section __P((vaddr_t pt, vaddr_t va, paddr_t pa,
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int cacheable));
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void map_pagetable __P((vaddr_t pt, vaddr_t va, paddr_t pa));
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void map_entry __P((vaddr_t pt, vaddr_t va, paddr_t pa));
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void map_entry_nc __P((vaddr_t pt, vaddr_t va, paddr_t pa));
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void map_entry_ro __P((vaddr_t pt, vaddr_t va, paddr_t pa));
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u_long strtoul __P((const char *s, char **ptr, int base));
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void data_abort_handler __P((trapframe_t *frame));
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void prefetch_abort_handler __P((trapframe_t *frame));
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void zero_page_readonly __P((void));
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void zero_page_readwrite __P((void));
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extern void configure __P((void));
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extern pt_entry_t *pmap_pte __P((pmap_t pmap, vaddr_t va));
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extern void pmap_postinit __P((void));
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extern void dumpsys __P((void));
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#ifdef PMAP_DEBUG
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extern void pmap_debug __P((int level));
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#endif /* PMAP_DEBUG */
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/*
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* Debug function just to park the CPU
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*/
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void
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halt()
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{
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while (1)
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cpu_sleep(0);
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}
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/* Sync the discs and unmount the filesystems */
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void
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bootsync(void)
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{
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static int bootsyncdone = 0;
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if (bootsyncdone) return;
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bootsyncdone = 1;
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/* Make sure we can still manage to do things */
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if (GetCPSR() & I32_bit) {
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/*
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* If we get here then boot has been called without RB_NOSYNC
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* and interrupts were disabled. This means the boot() call
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* did not come from a user process e.g. shutdown, but must
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* have come from somewhere in the kernel.
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*/
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IRQenable;
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printf("Warning IRQ's disabled during boot()\n");
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}
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vfs_shutdown();
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}
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/*
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* A few functions that are used to help construct the page tables
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* during the bootstrap process.
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*/
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void
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map_section(pagetable, va, pa, cacheable)
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vaddr_t pagetable;
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vaddr_t va;
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paddr_t pa;
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int cacheable;
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{
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#ifdef DIAGNOSTIC
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if (((va | pa) & (L1_SEC_SIZE - 1)) != 0)
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panic("initarm: Cannot allocate 1MB section on non 1MB boundry\n");
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#endif /* DIAGNOSTIC */
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if (cacheable)
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((u_int *)pagetable)[(va >> PDSHIFT)] =
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L1_SEC((pa & PD_MASK), PT_C);
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else
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((u_int *)pagetable)[(va >> PDSHIFT)] =
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L1_SEC((pa & PD_MASK), 0);
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}
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void
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map_pagetable(pagetable, va, pa)
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vaddr_t pagetable;
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vaddr_t va;
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paddr_t pa;
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{
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#ifdef DIAGNOSTIC
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if ((pa & 0xc00) != 0)
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panic("pagetables should be group allocated on pageboundry");
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#endif /* DIAGNOSTIC */
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((u_int *)pagetable)[(va >> PDSHIFT) + 0] =
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L1_PTE((pa & PG_FRAME) + 0x000);
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((u_int *)pagetable)[(va >> PDSHIFT) + 1] =
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L1_PTE((pa & PG_FRAME) + 0x400);
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((u_int *)pagetable)[(va >> PDSHIFT) + 2] =
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L1_PTE((pa & PG_FRAME) + 0x800);
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((u_int *)pagetable)[(va >> PDSHIFT) + 3] =
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L1_PTE((pa & PG_FRAME) + 0xc00);
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}
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vm_size_t
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map_chunk(pd, pt, va, pa, size, acc, flg)
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vaddr_t pd;
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vaddr_t pt;
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vaddr_t va;
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paddr_t pa;
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vm_size_t size;
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u_int acc;
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u_int flg;
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{
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pd_entry_t *l1pt = (pd_entry_t *)pd;
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pt_entry_t *l2pt = (pt_entry_t *)pt;
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vm_size_t remain;
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u_int loop;
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remain = (size + (NBPG - 1)) & ~(NBPG - 1);
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#ifdef VERBOSE_INIT_ARM
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printf("map_chunk: pa=%lx va=%lx sz=%lx rem=%lx acc=%x flg=%x\n",
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pa, va, size, remain, acc, flg);
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printf("map_chunk: ");
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#endif
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size = remain;
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while (remain > 0) {
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/* Can we do a section mapping ? */
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if (l1pt && !((pa | va) & (L1_SEC_SIZE - 1))
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&& remain >= L1_SEC_SIZE) {
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#ifdef VERBOSE_INIT_ARM
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printf("S");
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#endif
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l1pt[(va >> PDSHIFT)] = L1_SECPTE(pa, acc, flg);
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va += L1_SEC_SIZE;
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pa += L1_SEC_SIZE;
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remain -= L1_SEC_SIZE;
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} else
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/* Can we do a large page mapping ? */
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if (!((pa | va) & (L2_LPAGE_SIZE - 1))
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&& (remain >= L2_LPAGE_SIZE)) {
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#ifdef VERBOSE_INIT_ARM
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printf("L");
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#endif
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for (loop = 0; loop < 16; ++loop)
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l2pt[((va >> PGSHIFT) & 0x3f0) + loop] =
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L2_LPTE(pa, acc, flg);
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va += L2_LPAGE_SIZE;
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pa += L2_LPAGE_SIZE;
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remain -= L2_LPAGE_SIZE;
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} else
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/* All we can do is a small page mapping */
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{
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#ifdef VERBOSE_INIT_ARM
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printf("P");
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#endif
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l2pt[((va >> PGSHIFT) & 0x3ff)] = L2_SPTE(pa, acc, flg);
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va += NBPG;
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pa += NBPG;
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remain -= NBPG;
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}
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}
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#ifdef VERBOSE_INIT_ARM
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printf("\n");
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#endif
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return(size);
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}
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void
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map_entry(pagetable, va, pa)
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vaddr_t pagetable;
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vaddr_t va;
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paddr_t pa;
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{
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((pt_entry_t *)pagetable)[((va >> PGSHIFT) & 0x000003ff)] =
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L2_PTE((pa & PG_FRAME), AP_KRW);
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}
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void
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map_entry_nc(pagetable, va, pa)
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vaddr_t pagetable;
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vaddr_t va;
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paddr_t pa;
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{
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((pt_entry_t *)pagetable)[((va >> PGSHIFT) & 0x000003ff)] =
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L2_PTE_NC_NB((pa & PG_FRAME), AP_KRW);
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}
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void
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map_entry_ro(pagetable, va, pa)
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vaddr_t pagetable;
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vaddr_t va;
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paddr_t pa;
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{
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((pt_entry_t *)pagetable)[((va >> PGSHIFT) & 0x000003ff)] =
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L2_PTE((pa & PG_FRAME), AP_KR);
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}
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/*
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* void cpu_startup(void)
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*
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* Machine dependant startup code.
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*
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*/
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void
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cpu_startup()
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{
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int loop;
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paddr_t minaddr;
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paddr_t maxaddr;
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caddr_t sysbase;
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caddr_t size;
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vm_size_t bufsize;
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int base, residual;
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char pbuf[9];
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proc0paddr = (struct user *)kernelstack.pv_va;
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proc0.p_addr = proc0paddr;
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/* Set the cpu control register */
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cpu_setup(boot_args);
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/* All domains MUST be clients, permissions are VERY important */
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cpu_domains(DOMAIN_CLIENT);
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/* Lock down zero page */
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zero_page_readonly();
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/*
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* Give pmap a chance to set up a few more things now the vm
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* is initialised
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*/
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pmap_postinit();
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/*
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* Initialize error message buffer (at end of core).
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*/
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/* msgbufphys was setup during the secondary boot strap */
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for (loop = 0; loop < btoc(MSGBUFSIZE); ++loop)
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pmap_enter(pmap_kernel(),
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(vaddr_t)((caddr_t)msgbufaddr + loop * NBPG),
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msgbufphys + loop * NBPG, VM_PROT_READ|VM_PROT_WRITE,
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VM_PROT_READ|VM_PROT_WRITE|PMAP_WIRED);
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pmap_update();
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initmsgbuf(msgbufaddr, round_page(MSGBUFSIZE));
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/*
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* Identify ourselves for the msgbuf (everything printed earlier will
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* not be buffered).
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*/
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printf(version);
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format_bytes(pbuf, sizeof(pbuf), arm_page_to_byte(physmem));
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printf("total memory = %s\n", pbuf);
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/*
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* Find out how much space we need, allocate it,
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* and then give everything true virtual addresses.
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*/
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size = allocsys(NULL, NULL);
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sysbase = (caddr_t)uvm_km_zalloc(kernel_map, round_page((vaddr_t)size));
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if (sysbase == 0)
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panic(
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"cpu_startup: no room for system tables; %d bytes required",
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(u_int)size);
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if ((caddr_t)((allocsys(sysbase, NULL) - sysbase)) != size)
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panic("cpu_startup: system table size inconsistency");
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/*
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* Now allocate buffers proper. They are different than the above
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* in that they usually occupy more virtual memory than physical.
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*/
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bufsize = MAXBSIZE * nbuf;
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if (uvm_map(kernel_map, (vaddr_t *)&buffers, round_page(bufsize),
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NULL, UVM_UNKNOWN_OFFSET, 0,
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UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE,
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UVM_ADV_NORMAL, 0)) != 0)
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panic("cpu_startup: cannot allocate UVM space for buffers");
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minaddr = (vaddr_t)buffers;
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if ((bufpages / nbuf) >= btoc(MAXBSIZE)) {
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/* don't want to alloc more physical mem than needed */
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bufpages = btoc(MAXBSIZE) * nbuf;
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}
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base = bufpages / nbuf;
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residual = bufpages % nbuf;
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for (loop = 0; loop < nbuf; ++loop) {
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vm_size_t curbufsize;
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vaddr_t curbuf;
|
||||
struct vm_page *pg;
|
||||
|
||||
curbuf = (vaddr_t) buffers + (loop * MAXBSIZE);
|
||||
curbufsize = NBPG * ((loop < residual) ? (base+1) : base);
|
||||
|
||||
while (curbufsize) {
|
||||
pg = uvm_pagealloc(NULL, 0, NULL, 0);
|
||||
if (pg == NULL)
|
||||
panic("cpu_startup: not enough memory for buffer cache");
|
||||
pmap_enter(kernel_map->pmap, curbuf,
|
||||
VM_PAGE_TO_PHYS(pg), VM_PROT_READ|VM_PROT_WRITE,
|
||||
VM_PROT_READ|VM_PROT_WRITE|PMAP_WIRED);
|
||||
curbuf += PAGE_SIZE;
|
||||
curbufsize -= PAGE_SIZE;
|
||||
}
|
||||
}
|
||||
pmap_update();
|
||||
|
||||
/*
|
||||
* Allocate a submap for exec arguments. This map effectively
|
||||
* limits the number of processes exec'ing at any time.
|
||||
*/
|
||||
exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
|
||||
16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL);
|
||||
|
||||
/*
|
||||
* Allocate a submap for physio
|
||||
*/
|
||||
phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
|
||||
VM_PHYS_SIZE, 0, FALSE, NULL);
|
||||
|
||||
/*
|
||||
* Finally, allocate mbuf cluster submap.
|
||||
*/
|
||||
mb_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
|
||||
nmbclusters * mclbytes, VM_MAP_INTRSAFE,
|
||||
FALSE, NULL);
|
||||
|
||||
format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free));
|
||||
printf("avail memory = %s\n", pbuf);
|
||||
format_bytes(pbuf, sizeof(pbuf), bufpages * NBPG);
|
||||
printf("using %d buffers containing %s of memory\n", nbuf, pbuf);
|
||||
|
||||
/*
|
||||
* Set up buffers, so they can be used to read disk labels.
|
||||
*/
|
||||
bufinit();
|
||||
|
||||
curpcb = &proc0.p_addr->u_pcb;
|
||||
curpcb->pcb_flags = 0;
|
||||
curpcb->pcb_und_sp = (u_int)proc0.p_addr + USPACE_UNDEF_STACK_TOP;
|
||||
curpcb->pcb_sp = (u_int)proc0.p_addr + USPACE_SVC_STACK_TOP;
|
||||
(void) pmap_extract(pmap_kernel(), (vaddr_t)(pmap_kernel())->pm_pdir,
|
||||
(paddr_t *)&curpcb->pcb_pagedir);
|
||||
|
||||
curpcb->pcb_tf = (struct trapframe *)curpcb->pcb_sp - 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Initialise the console
|
||||
*/
|
||||
|
||||
void
|
||||
consinit(void)
|
||||
{
|
||||
static int consinit_called = 0;
|
||||
|
||||
if (consinit_called != 0)
|
||||
return;
|
||||
|
||||
consinit_called = 1;
|
||||
cninit();
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Modify the current mapping for zero page to make it read only
|
||||
*
|
||||
* This routine is only used until things start forking. Then new
|
||||
* system pages are mapped read only in pmap_enter().
|
||||
*/
|
||||
|
||||
void
|
||||
zero_page_readonly()
|
||||
{
|
||||
WriteWord(PROCESS_PAGE_TBLS_BASE + 0,
|
||||
L2_PTE((systempage.pv_pa & PG_FRAME), AP_KR));
|
||||
cpu_tlb_flushID_SE(0x00000000);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Modify the current mapping for zero page to make it read/write
|
||||
*
|
||||
* This routine is only used until things start forking. Then system
|
||||
* pages belonging to user processes are never made writable.
|
||||
*/
|
||||
|
||||
void
|
||||
zero_page_readwrite()
|
||||
{
|
||||
WriteWord(PROCESS_PAGE_TBLS_BASE + 0,
|
||||
L2_PTE((systempage.pv_pa & PG_FRAME), AP_KRW));
|
||||
cpu_tlb_flushID_SE(0x00000000);
|
||||
}
|
||||
|
||||
#if MULTIDEFINE
|
||||
/*
|
||||
* Send an interrupt to process.
|
||||
*
|
||||
* Stack is set up to allow sigcode stored
|
||||
* in u. to call routine, followed by kcall
|
||||
* to sigreturn routine below. After sigreturn
|
||||
* resets the signal mask, the stack, and the
|
||||
* frame pointer, it returns to the user specified pc.
|
||||
*/
|
||||
void
|
||||
sendsig(catcher, sig, mask, code)
|
||||
sig_t catcher;
|
||||
int sig;
|
||||
sigset_t *mask;
|
||||
u_long code;
|
||||
{
|
||||
struct proc *p = curproc;
|
||||
struct trapframe *tf;
|
||||
struct sigframe *fp, frame;
|
||||
int onstack;
|
||||
|
||||
tf = p->p_addr->u_pcb.pcb_tf;
|
||||
|
||||
/* Do we need to jump onto the signal stack? */
|
||||
onstack =
|
||||
(p->p_sigctx.ps_sigstk.ss_flags & (SS_DISABLE | SS_ONSTACK)) == 0 &&
|
||||
(SIGACTION(p, sig).sa_flags & SA_ONSTACK) != 0;
|
||||
|
||||
/* Allocate space for the signal handler context. */
|
||||
if (onstack)
|
||||
fp = (struct sigframe *)((caddr_t)p->p_sigctx.ps_sigstk.ss_sp +
|
||||
p->p_sigctx.ps_sigstk.ss_size);
|
||||
else
|
||||
fp = (struct sigframe *)tf->tf_usr_sp;
|
||||
fp--;
|
||||
|
||||
/* Build stack frame for signal trampoline. */
|
||||
frame.sf_signum = sig;
|
||||
frame.sf_code = code;
|
||||
frame.sf_scp = &fp->sf_sc;
|
||||
frame.sf_handler = catcher;
|
||||
|
||||
/* Save register context. */
|
||||
frame.sf_sc.sc_r0 = tf->tf_r0;
|
||||
frame.sf_sc.sc_r1 = tf->tf_r1;
|
||||
frame.sf_sc.sc_r2 = tf->tf_r2;
|
||||
frame.sf_sc.sc_r3 = tf->tf_r3;
|
||||
frame.sf_sc.sc_r4 = tf->tf_r4;
|
||||
frame.sf_sc.sc_r5 = tf->tf_r5;
|
||||
frame.sf_sc.sc_r6 = tf->tf_r6;
|
||||
frame.sf_sc.sc_r7 = tf->tf_r7;
|
||||
frame.sf_sc.sc_r8 = tf->tf_r8;
|
||||
frame.sf_sc.sc_r9 = tf->tf_r9;
|
||||
frame.sf_sc.sc_r10 = tf->tf_r10;
|
||||
frame.sf_sc.sc_r11 = tf->tf_r11;
|
||||
frame.sf_sc.sc_r12 = tf->tf_r12;
|
||||
frame.sf_sc.sc_usr_sp = tf->tf_usr_sp;
|
||||
frame.sf_sc.sc_usr_lr = tf->tf_usr_lr;
|
||||
frame.sf_sc.sc_svc_lr = tf->tf_svc_lr;
|
||||
frame.sf_sc.sc_pc = tf->tf_pc;
|
||||
frame.sf_sc.sc_spsr = tf->tf_spsr;
|
||||
|
||||
/* Save signal stack. */
|
||||
frame.sf_sc.sc_onstack = p->p_sigctx.ps_sigstk.ss_flags & SS_ONSTACK;
|
||||
|
||||
/* Save signal mask. */
|
||||
frame.sf_sc.sc_mask = *mask;
|
||||
|
||||
#ifdef COMPAT_13
|
||||
/*
|
||||
* XXX We always have to save an old style signal mask because
|
||||
* XXX we might be delivering a signal to a process which will
|
||||
* XXX escape from the signal in a non-standard way and invoke
|
||||
* XXX sigreturn() directly.
|
||||
*/
|
||||
native_sigset_to_sigset13(mask, &frame.sf_sc.__sc_mask13);
|
||||
#endif
|
||||
|
||||
if (copyout(&frame, fp, sizeof(frame)) != 0) {
|
||||
/*
|
||||
* Process has trashed its stack; give it an illegal
|
||||
* instruction to halt it in its tracks.
|
||||
*/
|
||||
sigexit(p, SIGILL);
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
||||
/*
|
||||
* Build context to run handler in.
|
||||
*/
|
||||
tf->tf_r0 = frame.sf_signum;
|
||||
tf->tf_r1 = frame.sf_code;
|
||||
tf->tf_r2 = (int)frame.sf_scp;
|
||||
tf->tf_r3 = (int)frame.sf_handler;
|
||||
tf->tf_usr_sp = (int)fp;
|
||||
tf->tf_pc = (int)p->p_sigctx.ps_sigcode;
|
||||
cpu_cache_syncI();
|
||||
|
||||
/* Remember that we're now on the signal stack. */
|
||||
if (onstack)
|
||||
p->p_sigctx.ps_sigstk.ss_flags |= SS_ONSTACK;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* System call to cleanup state after a signal
|
||||
* has been taken. Reset signal mask and
|
||||
* stack state from context left by sendsig (above).
|
||||
* Return to previous pc and psl as specified by
|
||||
* context left by sendsig. Check carefully to
|
||||
* make sure that the user has not modified the
|
||||
* psr to gain improper privileges or to cause
|
||||
* a machine fault.
|
||||
*/
|
||||
int
|
||||
sys___sigreturn14(p, v, retval)
|
||||
struct proc *p;
|
||||
void *v;
|
||||
register_t *retval;
|
||||
{
|
||||
struct sys___sigreturn14_args /* {
|
||||
syscallarg(struct sigcontext *) sigcntxp;
|
||||
} */ *uap = v;
|
||||
struct sigcontext *scp, context;
|
||||
struct trapframe *tf;
|
||||
|
||||
/*
|
||||
* The trampoline code hands us the context.
|
||||
* It is unsafe to keep track of it ourselves, in the event that a
|
||||
* program jumps out of a signal handler.
|
||||
*/
|
||||
scp = SCARG(uap, sigcntxp);
|
||||
if (copyin((caddr_t)scp, &context, sizeof(*scp)) != 0)
|
||||
return (EFAULT);
|
||||
|
||||
/* Make sure the processor mode has not been tampered with. */
|
||||
if ((context.sc_spsr & PSR_MODE) != PSR_USR32_MODE)
|
||||
return (EINVAL);
|
||||
|
||||
/* Restore register context. */
|
||||
tf = p->p_addr->u_pcb.pcb_tf;
|
||||
tf->tf_r0 = context.sc_r0;
|
||||
tf->tf_r1 = context.sc_r1;
|
||||
tf->tf_r2 = context.sc_r2;
|
||||
tf->tf_r3 = context.sc_r3;
|
||||
tf->tf_r4 = context.sc_r4;
|
||||
tf->tf_r5 = context.sc_r5;
|
||||
tf->tf_r6 = context.sc_r6;
|
||||
tf->tf_r7 = context.sc_r7;
|
||||
tf->tf_r8 = context.sc_r8;
|
||||
tf->tf_r9 = context.sc_r9;
|
||||
tf->tf_r10 = context.sc_r10;
|
||||
tf->tf_r11 = context.sc_r11;
|
||||
tf->tf_r12 = context.sc_r12;
|
||||
tf->tf_usr_sp = context.sc_usr_sp;
|
||||
tf->tf_usr_lr = context.sc_usr_lr;
|
||||
tf->tf_svc_lr = context.sc_svc_lr;
|
||||
tf->tf_pc = context.sc_pc;
|
||||
tf->tf_spsr = context.sc_spsr;
|
||||
|
||||
/* Restore signal stack. */
|
||||
if (context.sc_onstack & SS_ONSTACK)
|
||||
p->p_sigctx.ps_sigstk.ss_flags |= SS_ONSTACK;
|
||||
else
|
||||
p->p_sigctx.ps_sigstk.ss_flags &= ~SS_ONSTACK;
|
||||
|
||||
/* Restore signal mask. */
|
||||
(void) sigprocmask1(p, SIG_SETMASK, &context.sc_mask, 0);
|
||||
|
||||
return (EJUSTRETURN);
|
||||
}
|
||||
|
||||
#endif /* if MULTIDEFINE */
|
||||
|
||||
/*
|
||||
* machine dependent system variables.
|
||||
*/
|
||||
|
||||
int
|
||||
cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
|
||||
int *name;
|
||||
u_int namelen;
|
||||
void *oldp;
|
||||
size_t *oldlenp;
|
||||
void *newp;
|
||||
size_t newlen;
|
||||
struct proc *p;
|
||||
{
|
||||
/* all sysctl names at this level are terminal */
|
||||
if (namelen != 1)
|
||||
return (ENOTDIR); /* overloaded */
|
||||
|
||||
switch (name[0]) {
|
||||
case CPU_DEBUG:
|
||||
return(sysctl_int(oldp, oldlenp, newp, newlen, &kernel_debug));
|
||||
|
||||
case CPU_BOOTED_DEVICE:
|
||||
if (booted_device != NULL)
|
||||
return (sysctl_rdstring(oldp, oldlenp, newp,
|
||||
booted_device->dv_xname));
|
||||
return (EOPNOTSUPP);
|
||||
|
||||
case CPU_CONSDEV: {
|
||||
dev_t consdev;
|
||||
if (cn_tab != NULL)
|
||||
consdev = cn_tab->cn_dev;
|
||||
else
|
||||
consdev = NODEV;
|
||||
return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev,
|
||||
sizeof consdev));
|
||||
}
|
||||
|
||||
case CPU_BOOTED_KERNEL: {
|
||||
if (booted_kernel != NULL && booted_kernel[0] != '\0')
|
||||
return sysctl_rdstring(oldp, oldlenp, newp,
|
||||
booted_kernel);
|
||||
return (EOPNOTSUPP);
|
||||
}
|
||||
|
||||
default:
|
||||
return (EOPNOTSUPP);
|
||||
}
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
||||
void
|
||||
parse_mi_bootargs(args)
|
||||
char *args;
|
||||
{
|
||||
int integer;
|
||||
|
||||
if (get_bootconf_option(args, "single", BOOTOPT_TYPE_BOOLEAN, &integer)
|
||||
|| get_bootconf_option(args, "-s", BOOTOPT_TYPE_BOOLEAN, &integer))
|
||||
if (integer)
|
||||
boothowto |= RB_SINGLE;
|
||||
if (get_bootconf_option(args, "kdb", BOOTOPT_TYPE_BOOLEAN, &integer)
|
||||
|| get_bootconf_option(args, "-k", BOOTOPT_TYPE_BOOLEAN, &integer))
|
||||
if (integer)
|
||||
boothowto |= RB_KDB;
|
||||
if (get_bootconf_option(args, "ask", BOOTOPT_TYPE_BOOLEAN, &integer)
|
||||
|| get_bootconf_option(args, "-a", BOOTOPT_TYPE_BOOLEAN, &integer))
|
||||
if (integer)
|
||||
boothowto |= RB_ASKNAME;
|
||||
|
||||
#ifdef PMAP_DEBUG
|
||||
if (get_bootconf_option(args, "pmapdebug", BOOTOPT_TYPE_INT, &integer)) {
|
||||
pmap_debug_level = integer;
|
||||
pmap_debug(pmap_debug_level);
|
||||
}
|
||||
#endif /* PMAP_DEBUG */
|
||||
|
||||
/* if (get_bootconf_option(args, "nbuf", BOOTOPT_TYPE_INT, &integer))
|
||||
bufpages = integer;*/
|
||||
|
||||
#ifndef PMAP_STATIC_L1S
|
||||
if (get_bootconf_option(args, "maxproc", BOOTOPT_TYPE_INT, &integer)) {
|
||||
max_processes = integer;
|
||||
if (max_processes < 16)
|
||||
max_processes = 16;
|
||||
/* Limit is PDSIZE * (max_processes + 1) <= 4MB */
|
||||
if (max_processes > 255)
|
||||
max_processes = 255;
|
||||
}
|
||||
#endif /* !PMAP_STATUC_L1S */
|
||||
|
||||
if (get_bootconf_option(args, "quiet", BOOTOPT_TYPE_BOOLEAN, &integer)
|
||||
|| get_bootconf_option(args, "-q", BOOTOPT_TYPE_BOOLEAN, &integer))
|
||||
if (integer)
|
||||
boothowto |= AB_QUIET;
|
||||
if (get_bootconf_option(args, "verbose", BOOTOPT_TYPE_BOOLEAN, &integer)
|
||||
|| get_bootconf_option(args, "-v", BOOTOPT_TYPE_BOOLEAN, &integer))
|
||||
if (integer)
|
||||
boothowto |= AB_VERBOSE;
|
||||
}
|
||||
|
||||
/* End of machdep.c */
|
||||
Loading…
Reference in New Issue