11fd7cf299
struct sigframe containing the struct ucontext. The signal trampoline return code on the other hand DOES have just a struct sigframe on the stack to work with, so have it get a pointer to the ucontext out of there to pass along to sys_sigreturn. In other words, make everything work right whether sys_sigreturn is invoked from the trampoline or from userland code calling sigreturn(2). Submitted by: Takashi Komatsu <komatsu.taka@jp.panasonic.com> Reviewed by: cognet
146 lines
5.6 KiB
C
146 lines
5.6 KiB
C
/*-
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* Copyright (c) 2004 Olivier Houchard
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/assym.h>
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#include <sys/proc.h>
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#include <sys/mbuf.h>
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#include <sys/vmmeter.h>
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#include <sys/bus.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <vm/vm_map.h>
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#include <machine/vmparam.h>
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#include <machine/armreg.h>
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#include <machine/frame.h>
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#include <machine/pcb.h>
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#include <machine/cpu.h>
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#include <machine/proc.h>
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#include <machine/cpufunc.h>
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#include <machine/pte.h>
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#include <machine/intr.h>
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#include <machine/sysarch.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#include <netinet/ip_var.h>
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ASSYM(KERNBASE, KERNBASE);
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ASSYM(PCB_NOALIGNFLT, PCB_NOALIGNFLT);
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ASSYM(PCB_ONFAULT, offsetof(struct pcb, pcb_onfault));
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ASSYM(PCB_DACR, offsetof(struct pcb, pcb_dacr));
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ASSYM(PCB_FLAGS, offsetof(struct pcb, pcb_flags));
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ASSYM(PCB_UND_SP, offsetof(struct pcb, un_32.pcb32_und_sp));
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ASSYM(PCB_PAGEDIR, offsetof(struct pcb, pcb_pagedir));
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ASSYM(PCB_L1VEC, offsetof(struct pcb, pcb_l1vec));
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ASSYM(PCB_PL1VEC, offsetof(struct pcb, pcb_pl1vec));
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ASSYM(PCB_R8, offsetof(struct pcb, un_32.pcb32_r8));
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ASSYM(PCB_R9, offsetof(struct pcb, un_32.pcb32_r9));
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ASSYM(PCB_R10, offsetof(struct pcb, un_32.pcb32_r10));
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ASSYM(PCB_R11, offsetof(struct pcb, un_32.pcb32_r11));
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ASSYM(PCB_R12, offsetof(struct pcb, un_32.pcb32_r12));
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ASSYM(PCB_PC, offsetof(struct pcb, un_32.pcb32_pc));
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ASSYM(PCB_SP, offsetof(struct pcb, un_32.pcb32_sp));
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ASSYM(PC_CURPCB, offsetof(struct pcpu, pc_curpcb));
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ASSYM(PC_CURTHREAD, offsetof(struct pcpu, pc_curthread));
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ASSYM(M_LEN, offsetof(struct mbuf, m_len));
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ASSYM(M_DATA, offsetof(struct mbuf, m_data));
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ASSYM(M_NEXT, offsetof(struct mbuf, m_next));
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ASSYM(IP_SRC, offsetof(struct ip, ip_src));
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ASSYM(IP_DST, offsetof(struct ip, ip_dst));
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ASSYM(CF_SETTTB, offsetof(struct cpu_functions, cf_setttb));
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ASSYM(CF_CONTROL, offsetof(struct cpu_functions, cf_control));
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ASSYM(CF_CONTEXT_SWITCH, offsetof(struct cpu_functions, cf_context_switch));
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ASSYM(CF_DCACHE_WB_RANGE, offsetof(struct cpu_functions, cf_dcache_wb_range));
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ASSYM(CF_L2CACHE_WB_RANGE, offsetof(struct cpu_functions, cf_l2cache_wb_range));
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ASSYM(CF_IDCACHE_WBINV_ALL, offsetof(struct cpu_functions, cf_idcache_wbinv_all));
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ASSYM(CF_L2CACHE_WBINV_ALL, offsetof(struct cpu_functions, cf_l2cache_wbinv_all));
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ASSYM(CF_TLB_FLUSHID_SE, offsetof(struct cpu_functions, cf_tlb_flushID_SE));
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ASSYM(CF_ICACHE_SYNC, offsetof(struct cpu_functions, cf_icache_sync_all));
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ASSYM(V_TRAP, offsetof(struct vmmeter, v_trap));
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ASSYM(V_SOFT, offsetof(struct vmmeter, v_soft));
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ASSYM(V_INTR, offsetof(struct vmmeter, v_intr));
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ASSYM(TD_PCB, offsetof(struct thread, td_pcb));
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ASSYM(TD_FLAGS, offsetof(struct thread, td_flags));
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ASSYM(TD_PROC, offsetof(struct thread, td_proc));
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ASSYM(TD_FRAME, offsetof(struct thread, td_frame));
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ASSYM(TD_MD, offsetof(struct thread, td_md));
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ASSYM(TD_LOCK, offsetof(struct thread, td_lock));
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ASSYM(MD_TP, offsetof(struct mdthread, md_tp));
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ASSYM(MD_RAS_START, offsetof(struct mdthread, md_ras_start));
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ASSYM(MD_RAS_END, offsetof(struct mdthread, md_ras_end));
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ASSYM(TF_R0, offsetof(struct trapframe, tf_r0));
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ASSYM(TF_R1, offsetof(struct trapframe, tf_r1));
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ASSYM(TF_PC, offsetof(struct trapframe, tf_pc));
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ASSYM(P_PID, offsetof(struct proc, p_pid));
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ASSYM(P_FLAG, offsetof(struct proc, p_flag));
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ASSYM(SIGF_UC, offsetof(struct sigframe, sf_uc));
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#ifdef ARM_TP_ADDRESS
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ASSYM(ARM_TP_ADDRESS, ARM_TP_ADDRESS);
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ASSYM(ARM_RAS_START, ARM_RAS_START);
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ASSYM(ARM_RAS_END, ARM_RAS_END);
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#endif
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#ifdef VFP
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ASSYM(PCB_VFPSTATE, offsetof(struct pcb, pcb_vfpstate));
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ASSYM(PCB_VFPCPU, offsetof(struct pcb, pcb_vfpcpu));
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ASSYM(PC_VFPCTHREAD, offsetof(struct pcpu, pc_vfpcthread));
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ASSYM(PC_CPU, offsetof(struct pcpu, pc_cpu));
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ASSYM(PC_CURPMAP, offsetof(struct pcpu, pc_curpmap));
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#endif
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ASSYM(PAGE_SIZE, PAGE_SIZE);
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ASSYM(PDESIZE, PDESIZE);
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ASSYM(PMAP_DOMAIN_KERNEL, PMAP_DOMAIN_KERNEL);
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#ifdef PMAP_INCLUDE_PTE_SYNC
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ASSYM(PMAP_INCLUDE_PTE_SYNC, 1);
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#endif
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ASSYM(TDF_ASTPENDING, TDF_ASTPENDING);
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ASSYM(TDF_NEEDRESCHED, TDF_NEEDRESCHED);
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ASSYM(P_TRACED, P_TRACED);
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ASSYM(P_SIGEVENT, P_SIGEVENT);
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ASSYM(P_PROFIL, P_PROFIL);
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ASSYM(TRAPFRAMESIZE, sizeof(struct trapframe));
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ASSYM(MAXCOMLEN, MAXCOMLEN);
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ASSYM(NIRQ, NIRQ);
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ASSYM(PCPU_SIZE, sizeof(struct pcpu));
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