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freebsd-dev/sys/amd64/amd64/genassym.c
Jonathan Mini 575525a000 Add kernel support needed for the KSE-aware libpthread: 
- Maintain fpu state across signals.
	- Use ucontext_t's to store KSE thread state.
	- Synthesize state for the UTS upon each upcall, rather than
	  saving and copying a trapframe.
	- Save and restore FPU state properly in ucontext_t's.

Reviewed by:	deischen, julian
Approved by:	-arch
2002-09-16 19:25:08 +00:00

218 lines
8.5 KiB
C
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/*-
* Copyright (c) 1982, 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
*
* from: @(#)genassym.c 5.11 (Berkeley) 5/10/91
* $FreeBSD$
*/
#include "opt_kstack_pages.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/assym.h>
#include <sys/bio.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/errno.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/socket.h>
#include <sys/resourcevar.h>
#include <sys/ucontext.h>
#include <sys/user.h>
#include <machine/bootinfo.h>
#include <machine/tss.h>
#include <sys/vmmeter.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <vm/vm_map.h>
#include <sys/user.h>
#include <sys/proc.h>
#include <net/if.h>
#include <netinet/in.h>
#include <nfs/nfsproto.h>
#include <nfs/rpcv2.h>
#include <nfsclient/nfs.h>
#include <nfsclient/nfsdiskless.h>
#ifdef SMP
#include <machine/apic.h>
#endif
#include <machine/cpu.h>
#include <machine/sigframe.h>
#include <machine/vm86.h>
#include <machine/proc.h>
ASSYM(P_VMSPACE, offsetof(struct proc, p_vmspace));
ASSYM(VM_PMAP, offsetof(struct vmspace, vm_pmap));
ASSYM(PM_ACTIVE, offsetof(struct pmap, pm_active));
ASSYM(P_SFLAG, offsetof(struct proc, p_sflag));
ASSYM(P_STATE, offsetof(struct proc, p_state));
ASSYM(P_UAREA, offsetof(struct proc, p_uarea));
ASSYM(TD_FLAGS, offsetof(struct thread, td_flags));
ASSYM(TD_WCHAN, offsetof(struct thread, td_wchan));
ASSYM(TD_PCB, offsetof(struct thread, td_pcb));
ASSYM(TD_KSE, offsetof(struct thread, td_kse));
ASSYM(TD_PROC, offsetof(struct thread, td_proc));
ASSYM(TD_INTR_NESTING_LEVEL, offsetof(struct thread, td_intr_nesting_level));
ASSYM(TD_CRITNEST, offsetof(struct thread, td_critnest));
ASSYM(TD_SWITCHIN, offsetof(struct thread, td_switchin));
ASSYM(TD_MD, offsetof(struct thread, td_md));
ASSYM(P_MD, offsetof(struct proc, p_md));
ASSYM(MD_LDT, offsetof(struct mdproc, md_ldt));
ASSYM(KE_FLAGS, offsetof(struct kse, ke_flags));
ASSYM(KEF_ASTPENDING, KEF_ASTPENDING);
ASSYM(KEF_NEEDRESCHED, KEF_NEEDRESCHED);
ASSYM(V_TRAP, offsetof(struct vmmeter, v_trap));
ASSYM(V_SYSCALL, offsetof(struct vmmeter, v_syscall));
ASSYM(V_INTR, offsetof(struct vmmeter, v_intr));
/* ASSYM(UPAGES, UPAGES);*/
ASSYM(UAREA_PAGES, UAREA_PAGES);
ASSYM(KSTACK_PAGES, KSTACK_PAGES);
ASSYM(PAGE_SIZE, PAGE_SIZE);
ASSYM(NPTEPG, NPTEPG);
ASSYM(NPDEPG, NPDEPG);
ASSYM(PDESIZE, PDESIZE);
ASSYM(PTESIZE, PTESIZE);
ASSYM(PAGE_SHIFT, PAGE_SHIFT);
ASSYM(PAGE_MASK, PAGE_MASK);
ASSYM(PDRSHIFT, PDRSHIFT);
ASSYM(USRSTACK, USRSTACK);
ASSYM(VM_MAXUSER_ADDRESS, VM_MAXUSER_ADDRESS);
ASSYM(KERNBASE, KERNBASE);
ASSYM(MCLBYTES, MCLBYTES);
ASSYM(PCB_CR3, offsetof(struct pcb, pcb_cr3));
ASSYM(PCB_EDI, offsetof(struct pcb, pcb_edi));
ASSYM(PCB_ESI, offsetof(struct pcb, pcb_esi));
ASSYM(PCB_EBP, offsetof(struct pcb, pcb_ebp));
ASSYM(PCB_ESP, offsetof(struct pcb, pcb_esp));
ASSYM(PCB_EBX, offsetof(struct pcb, pcb_ebx));
ASSYM(PCB_EIP, offsetof(struct pcb, pcb_eip));
ASSYM(TSS_ESP0, offsetof(struct i386tss, tss_esp0));
ASSYM(PCB_GS, offsetof(struct pcb, pcb_gs));
ASSYM(PCB_DR0, offsetof(struct pcb, pcb_dr0));
ASSYM(PCB_DR1, offsetof(struct pcb, pcb_dr1));
ASSYM(PCB_DR2, offsetof(struct pcb, pcb_dr2));
ASSYM(PCB_DR3, offsetof(struct pcb, pcb_dr3));
ASSYM(PCB_DR6, offsetof(struct pcb, pcb_dr6));
ASSYM(PCB_DR7, offsetof(struct pcb, pcb_dr7));
ASSYM(PCB_PSL, offsetof(struct pcb, pcb_psl));
ASSYM(PCB_DBREGS, PCB_DBREGS);
ASSYM(PCB_EXT, offsetof(struct pcb, pcb_ext));
ASSYM(PCB_SPARE, offsetof(struct pcb, __pcb_spare));
ASSYM(PCB_FLAGS, offsetof(struct pcb, pcb_flags));
ASSYM(PCB_SAVEFPU, offsetof(struct pcb, pcb_save));
ASSYM(PCB_SAVEFPU_SIZE, sizeof(union savefpu));
ASSYM(PCB_ONFAULT, offsetof(struct pcb, pcb_onfault));
ASSYM(PCB_SIZE, sizeof(struct pcb));
ASSYM(TF_TRAPNO, offsetof(struct trapframe, tf_trapno));
ASSYM(TF_ERR, offsetof(struct trapframe, tf_err));
ASSYM(TF_CS, offsetof(struct trapframe, tf_cs));
ASSYM(TF_EFLAGS, offsetof(struct trapframe, tf_eflags));
ASSYM(SIGF_HANDLER, offsetof(struct sigframe, sf_ahu.sf_handler));
ASSYM(SIGF_SC, offsetof(struct osigframe, sf_siginfo.si_sc));
ASSYM(SIGF_UC, offsetof(struct sigframe, sf_uc));
ASSYM(SC_PS, offsetof(struct osigcontext, sc_ps));
ASSYM(SC_FS, offsetof(struct osigcontext, sc_fs));
ASSYM(SC_GS, offsetof(struct osigcontext, sc_gs));
ASSYM(SC_TRAPNO, offsetof(struct osigcontext, sc_trapno));
ASSYM(UC_EFLAGS, offsetof(ucontext_t, uc_mcontext.mc_eflags));
ASSYM(UC_GS, offsetof(ucontext_t, uc_mcontext.mc_gs));
ASSYM(ENOENT, ENOENT);
ASSYM(EFAULT, EFAULT);
ASSYM(ENAMETOOLONG, ENAMETOOLONG);
ASSYM(MAXPATHLEN, MAXPATHLEN);
ASSYM(BOOTINFO_SIZE, sizeof(struct bootinfo));
ASSYM(BI_VERSION, offsetof(struct bootinfo, bi_version));
ASSYM(BI_KERNELNAME, offsetof(struct bootinfo, bi_kernelname));
ASSYM(BI_NFS_DISKLESS, offsetof(struct bootinfo, bi_nfs_diskless));
ASSYM(BI_ENDCOMMON, offsetof(struct bootinfo, bi_endcommon));
ASSYM(NFSDISKLESS_SIZE, sizeof(struct nfs_diskless));
ASSYM(BI_SIZE, offsetof(struct bootinfo, bi_size));
ASSYM(BI_SYMTAB, offsetof(struct bootinfo, bi_symtab));
ASSYM(BI_ESYMTAB, offsetof(struct bootinfo, bi_esymtab));
ASSYM(BI_KERNEND, offsetof(struct bootinfo, bi_kernend));
ASSYM(PC_SIZEOF, sizeof(struct pcpu));
ASSYM(PC_PRVSPACE, offsetof(struct pcpu, pc_prvspace));
ASSYM(PC_CURTHREAD, offsetof(struct pcpu, pc_curthread));
ASSYM(PC_INT_PENDING, offsetof(struct pcpu, pc_int_pending));
ASSYM(PC_IPENDING, offsetof(struct pcpu, pc_ipending));
ASSYM(PC_FPENDING, offsetof(struct pcpu, pc_fpending));
ASSYM(PC_SPENDING, offsetof(struct pcpu, pc_spending));
ASSYM(PC_FPCURTHREAD, offsetof(struct pcpu, pc_fpcurthread));
ASSYM(PC_IDLETHREAD, offsetof(struct pcpu, pc_idlethread));
ASSYM(PC_CURPCB, offsetof(struct pcpu, pc_curpcb));
ASSYM(PC_COMMON_TSS, offsetof(struct pcpu, pc_common_tss));
ASSYM(PC_COMMON_TSSD, offsetof(struct pcpu, pc_common_tssd));
ASSYM(PC_TSS_GDT, offsetof(struct pcpu, pc_tss_gdt));
ASSYM(PC_CURRENTLDT, offsetof(struct pcpu, pc_currentldt));
ASSYM(PC_CPUID, offsetof(struct pcpu, pc_cpuid));
#ifdef SMP
ASSYM(LA_VER, offsetof(struct LAPIC, version));
ASSYM(LA_TPR, offsetof(struct LAPIC, tpr));
ASSYM(LA_EOI, offsetof(struct LAPIC, eoi));
ASSYM(LA_SVR, offsetof(struct LAPIC, svr));
ASSYM(LA_ICR_LO, offsetof(struct LAPIC, icr_lo));
ASSYM(LA_ICR_HI, offsetof(struct LAPIC, icr_hi));
#endif
ASSYM(KCSEL, GSEL(GCODE_SEL, SEL_KPL));
ASSYM(KDSEL, GSEL(GDATA_SEL, SEL_KPL));
ASSYM(KPSEL, GSEL(GPRIV_SEL, SEL_KPL));
ASSYM(BC32SEL, GSEL(GBIOSCODE32_SEL, SEL_KPL));
ASSYM(GPROC0_SEL, GPROC0_SEL);
ASSYM(VM86_FRAMESIZE, sizeof(struct vm86frame));
ASSYM(MTX_LOCK, offsetof(struct mtx, mtx_lock));
ASSYM(MTX_RECURSECNT, offsetof(struct mtx, mtx_recurse));
#ifdef PC98
#include <machine/bus.h>
ASSYM(BUS_SPACE_HANDLE_BASE, offsetof(struct bus_space_handle, bsh_base));
ASSYM(BUS_SPACE_HANDLE_IAT, offsetof(struct bus_space_handle, bsh_iat));
#endif
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