diff options
Diffstat (limited to 'sys/compat/ia32')
| -rw-r--r-- | sys/compat/ia32/ia32_genassym.c | 26 | ||||
| -rw-r--r-- | sys/compat/ia32/ia32_reg.h | 141 | ||||
| -rw-r--r-- | sys/compat/ia32/ia32_signal.h | 187 | ||||
| -rw-r--r-- | sys/compat/ia32/ia32_sysvec.c | 314 | ||||
| -rw-r--r-- | sys/compat/ia32/ia32_util.h | 49 |
5 files changed, 717 insertions, 0 deletions
diff --git a/sys/compat/ia32/ia32_genassym.c b/sys/compat/ia32/ia32_genassym.c new file mode 100644 index 000000000000..84fb648f90ed --- /dev/null +++ b/sys/compat/ia32/ia32_genassym.c @@ -0,0 +1,26 @@ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "opt_compat.h" + +#include <sys/param.h> +#include <sys/assym.h> +#include <sys/systm.h> +#include <sys/signal.h> + +#include <compat/freebsd32/freebsd32_signal.h> +#include <compat/ia32/ia32_signal.h> + +ASSYM(IA32_SIGF_HANDLER, offsetof(struct ia32_sigframe, sf_ah)); +ASSYM(IA32_SIGF_UC, offsetof(struct ia32_sigframe, sf_uc)); +ASSYM(IA32_UC_GS, offsetof(struct ia32_ucontext, uc_mcontext.mc_gs)); +ASSYM(IA32_UC_FS, offsetof(struct ia32_ucontext, uc_mcontext.mc_fs)); +ASSYM(IA32_UC_ES, offsetof(struct ia32_ucontext, uc_mcontext.mc_es)); +ASSYM(IA32_UC_DS, offsetof(struct ia32_ucontext, uc_mcontext.mc_ds)); +#ifdef COMPAT_FREEBSD4 +ASSYM(IA32_SIGF_UC4, offsetof(struct ia32_sigframe4, sf_uc)); +ASSYM(IA32_UC4_GS, offsetof(struct ia32_ucontext4, uc_mcontext.mc_gs)); +ASSYM(IA32_UC4_FS, offsetof(struct ia32_ucontext4, uc_mcontext.mc_fs)); +ASSYM(IA32_UC4_ES, offsetof(struct ia32_ucontext4, uc_mcontext.mc_es)); +ASSYM(IA32_UC4_DS, offsetof(struct ia32_ucontext4, uc_mcontext.mc_ds)); +#endif diff --git a/sys/compat/ia32/ia32_reg.h b/sys/compat/ia32/ia32_reg.h new file mode 100644 index 000000000000..5a9cdf2eebf9 --- /dev/null +++ b/sys/compat/ia32/ia32_reg.h @@ -0,0 +1,141 @@ +/*- + * Copyright (c) 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. + * 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: @(#)reg.h 5.5 (Berkeley) 1/18/91 + * $FreeBSD$ + */ + +#ifndef _COMPAT_IA32_IA32_REG_H_ +#define _COMPAT_IA32_IA32_REG_H_ + +/* + * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS. + */ +struct reg32 { + unsigned int r_fs; + unsigned int r_es; + unsigned int r_ds; + unsigned int r_edi; + unsigned int r_esi; + unsigned int r_ebp; + unsigned int r_isp; + unsigned int r_ebx; + unsigned int r_edx; + unsigned int r_ecx; + unsigned int r_eax; + unsigned int r_trapno; + unsigned int r_err; + unsigned int r_eip; + unsigned int r_cs; + unsigned int r_eflags; + unsigned int r_esp; + unsigned int r_ss; + unsigned int r_gs; +}; + +/* + * Register set accessible via /proc/$pid/fpregs. + */ +struct fpreg32 { + unsigned int fpr_env[7]; + unsigned char fpr_acc[8][10]; + unsigned int fpr_ex_sw; + unsigned char fpr_pad[64]; +}; + +/* + * Register set accessible via /proc/$pid/dbregs. + */ +struct dbreg32 { + unsigned int dr[8]; /* debug registers */ +}; + +/* Environment information of floating point unit */ +struct env87 { + int en_cw; /* control word (16bits) */ + int en_sw; /* status word (16bits) */ + int en_tw; /* tag word (16bits) */ + int en_fip; /* floating point instruction pointer */ + u_short en_fcs; /* floating code segment selector */ + u_short en_opcode; /* opcode last executed (11 bits ) */ + int en_foo; /* floating operand offset */ + int en_fos; /* floating operand segment selector */ +}; + +#ifdef __ia64__ +/* Layout of an x87 fpu register (amd64 gets this elsewhere) */ +struct fpacc87 { + u_char fp_bytes[10]; +}; +#endif + +/* Floating point context */ +struct save87 { + struct env87 sv_env; /* floating point control/status */ + struct fpacc87 sv_ac[8]; /* accumulator contents, 0-7 */ + u_char sv_pad0[4]; /* padding for (now unused) saved status word */ + u_char sv_pad[64]; /* padding; used by emulators */ +}; + + +/* + * Alternative layouts for <sys/procfs.h> + * Used in core dumps, the reason for this file existing. + */ +struct prstatus32 { + int pr_version; + u_int pr_statussz; + u_int pr_gregsetsz; + u_int pr_fpregsetsz; + int pr_osreldate; + int pr_cursig; + pid_t pr_pid; + struct reg32 pr_reg; +}; + +struct prpsinfo32 { + int pr_version; + u_int pr_psinfosz; + char pr_fname[PRFNAMESZ+1]; + char pr_psargs[PRARGSZ+1]; +}; + +/* + * Wrappers and converters. + */ +int fill_regs32(struct thread *, struct reg32 *); +int set_regs32(struct thread *, struct reg32 *); +int fill_fpregs32(struct thread *, struct fpreg32 *); +int set_fpregs32(struct thread *, struct fpreg32 *); +int fill_dbregs32(struct thread *, struct dbreg32 *); +int set_dbregs32(struct thread *, struct dbreg32 *); + +#endif /* !_COMPAT_IA32_IA32_REG_H_ */ diff --git a/sys/compat/ia32/ia32_signal.h b/sys/compat/ia32/ia32_signal.h new file mode 100644 index 000000000000..f2be96d5100b --- /dev/null +++ b/sys/compat/ia32/ia32_signal.h @@ -0,0 +1,187 @@ +/*- + * Copyright (c) 1999 Marcel Moolenaar + * Copyright (c) 2003 Peter Wemm + * All rights reserved. + * + * 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 + * in this position and unchanged. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + * + * $FreeBSD$ + */ + +struct ia32_mcontext { + u_int32_t mc_onstack; /* XXX - sigcontext compat. */ + u_int32_t mc_gs; /* machine state (struct trapframe) */ + u_int32_t mc_fs; + u_int32_t mc_es; + u_int32_t mc_ds; + u_int32_t mc_edi; + u_int32_t mc_esi; + u_int32_t mc_ebp; + u_int32_t mc_isp; + u_int32_t mc_ebx; + u_int32_t mc_edx; + u_int32_t mc_ecx; + u_int32_t mc_eax; + u_int32_t mc_trapno; + u_int32_t mc_err; + u_int32_t mc_eip; + u_int32_t mc_cs; + u_int32_t mc_eflags; + u_int32_t mc_esp; + u_int32_t mc_ss; + u_int32_t mc_len; /* sizeof(struct ia32_mcontext) */ + /* We use the same values for fpformat and ownedfp */ + u_int32_t mc_fpformat; + u_int32_t mc_ownedfp; + u_int32_t mc_spare1[1]; /* align next field to 16 bytes */ + /* + * See <i386/include/npx.h> for the internals of mc_fpstate[]. + */ + u_int32_t mc_fpstate[128] __aligned(16); + u_int32_t mc_spare2[8]; +}; + +struct ia32_ucontext { + sigset_t uc_sigmask; + struct ia32_mcontext uc_mcontext; + u_int32_t uc_link; + struct sigaltstack32 uc_stack; + u_int32_t uc_flags; + u_int32_t __spare__[4]; +}; + + +#if defined(COMPAT_FREEBSD4) +struct ia32_mcontext4 { + u_int32_t mc_onstack; /* XXX - sigcontext compat. */ + u_int32_t mc_gs; /* machine state (struct trapframe) */ + u_int32_t mc_fs; + u_int32_t mc_es; + u_int32_t mc_ds; + u_int32_t mc_edi; + u_int32_t mc_esi; + u_int32_t mc_ebp; + u_int32_t mc_isp; + u_int32_t mc_ebx; + u_int32_t mc_edx; + u_int32_t mc_ecx; + u_int32_t mc_eax; + u_int32_t mc_trapno; + u_int32_t mc_err; + u_int32_t mc_eip; + u_int32_t mc_cs; + u_int32_t mc_eflags; + u_int32_t mc_esp; + u_int32_t mc_ss; + u_int32_t mc_fpregs[28]; + u_int32_t __spare__[17]; +}; + +struct ia32_ucontext4 { + sigset_t uc_sigmask; + struct ia32_mcontext4 uc_mcontext; + u_int32_t uc_link; + struct sigaltstack32 uc_stack; + u_int32_t __spare__[8]; +}; +#endif + +#ifdef COMPAT_FREEBSD3 +struct ia32_sigcontext3 { + u_int32_t sc_onstack; + u_int32_t sc_mask; + u_int32_t sc_esp; + u_int32_t sc_ebp; + u_int32_t sc_isp; + u_int32_t sc_eip; + u_int32_t sc_eflags; + u_int32_t sc_es; + u_int32_t sc_ds; + u_int32_t sc_cs; + u_int32_t sc_ss; + u_int32_t sc_edi; + u_int32_t sc_esi; + u_int32_t sc_ebx; + u_int32_t sc_edx; + u_int32_t sc_ecx; + u_int32_t sc_eax; + u_int32_t sc_gs; + u_int32_t sc_fs; + u_int32_t sc_trapno; + u_int32_t sc_err; +}; +#endif + +/* + * Signal frames, arguments passed to application signal handlers. + */ + +#ifdef COMPAT_FREEBSD4 +struct ia32_sigframe4 { + u_int32_t sf_signum; + u_int32_t sf_siginfo; /* code or pointer to sf_si */ + u_int32_t sf_ucontext; /* points to sf_uc */ + u_int32_t sf_addr; /* undocumented 4th arg */ + u_int32_t sf_ah; /* action/handler pointer */ + struct ia32_ucontext4 sf_uc; /* = *sf_ucontext */ + struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ +}; +#endif + +struct ia32_sigframe { + u_int32_t sf_signum; + u_int32_t sf_siginfo; /* code or pointer to sf_si */ + u_int32_t sf_ucontext; /* points to sf_uc */ + u_int32_t sf_addr; /* undocumented 4th arg */ + u_int32_t sf_ah; /* action/handler pointer */ + /* Beware, hole due to ucontext being 16 byte aligned! */ + struct ia32_ucontext sf_uc; /* = *sf_ucontext */ + struct siginfo32 sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ +}; + +#ifdef COMPAT_FREEBSD3 +struct ia32_siginfo3 { + struct ia32_sigcontext3 si_sc; + int si_signo; + int si_code; + union sigval32 si_value; +}; +struct ia32_sigframe3 { + int sf_signum; + u_int32_t sf_arg2; /* int or siginfo_t */ + u_int32_t sf_scp; + u_int32_t sf_addr; + u_int32_t sf_ah; /* action/handler pointer */ + struct ia32_siginfo3 sf_siginfo; +}; +#endif + +struct ksiginfo; +extern char ia32_sigcode[]; +extern char freebsd4_ia32_sigcode[]; +extern int sz_ia32_sigcode; +extern int sz_freebsd4_ia32_sigcode; +extern void ia32_sendsig(sig_t, struct ksiginfo *, sigset_t *); +extern void ia32_setregs(struct thread *td, u_long entry, u_long stack, + u_long ps_strings); diff --git a/sys/compat/ia32/ia32_sysvec.c b/sys/compat/ia32/ia32_sysvec.c new file mode 100644 index 000000000000..62779269e3a5 --- /dev/null +++ b/sys/compat/ia32/ia32_sysvec.c @@ -0,0 +1,314 @@ +/*- + * Copyright (c) 2002 Doug Rabson + * Copyright (c) 2003 Peter Wemm + * All rights reserved. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "opt_compat.h" + +#define __ELF_WORD_SIZE 32 + +#include <sys/param.h> +#include <sys/exec.h> +#include <sys/fcntl.h> +#include <sys/imgact.h> +#include <sys/kernel.h> +#include <sys/lock.h> +#include <sys/malloc.h> +#include <sys/mutex.h> +#include <sys/mman.h> +#include <sys/namei.h> +#include <sys/pioctl.h> +#include <sys/proc.h> +#include <sys/procfs.h> +#include <sys/resourcevar.h> +#include <sys/systm.h> +#include <sys/signalvar.h> +#include <sys/stat.h> +#include <sys/sx.h> +#include <sys/syscall.h> +#include <sys/sysctl.h> +#include <sys/sysent.h> +#include <sys/vnode.h> +#include <sys/imgact_elf.h> + +#include <vm/vm.h> +#include <vm/vm_kern.h> +#include <vm/vm_param.h> +#include <vm/pmap.h> +#include <vm/vm_map.h> +#include <vm/vm_object.h> +#include <vm/vm_extern.h> + +#include <compat/freebsd32/freebsd32_signal.h> +#include <compat/freebsd32/freebsd32_util.h> +#include <compat/freebsd32/freebsd32_proto.h> +#include <compat/freebsd32/freebsd32_syscall.h> +#include <compat/ia32/ia32_signal.h> +#ifdef __amd64__ +#include <machine/psl.h> +#include <machine/segments.h> +#include <machine/specialreg.h> +#else +#include <i386/include/psl.h> +#include <i386/include/segments.h> +#include <i386/include/specialreg.h> +#endif +#include <machine/frame.h> +#include <machine/md_var.h> +#include <machine/pcb.h> +#include <machine/cpufunc.h> + +CTASSERT(sizeof(struct ia32_mcontext) == 640); +CTASSERT(sizeof(struct ia32_ucontext) == 704); +CTASSERT(sizeof(struct ia32_sigframe) == 800); +CTASSERT(sizeof(struct siginfo32) == 64); +#ifdef COMPAT_FREEBSD4 +CTASSERT(sizeof(struct ia32_mcontext4) == 260); +CTASSERT(sizeof(struct ia32_ucontext4) == 324); +CTASSERT(sizeof(struct ia32_sigframe4) == 408); +#endif + +static register_t *ia32_copyout_strings(struct image_params *imgp); +static void ia32_fixlimit(struct rlimit *rl, int which); + +extern struct sysent freebsd32_sysent[]; + +SYSCTL_NODE(_compat, OID_AUTO, ia32, CTLFLAG_RW, 0, "ia32 mode"); + +static u_long ia32_maxdsiz = IA32_MAXDSIZ; +SYSCTL_ULONG(_compat_ia32, OID_AUTO, maxdsiz, CTLFLAG_RW, &ia32_maxdsiz, 0, ""); +static u_long ia32_maxssiz = IA32_MAXSSIZ; +SYSCTL_ULONG(_compat_ia32, OID_AUTO, maxssiz, CTLFLAG_RW, &ia32_maxssiz, 0, ""); +static u_long ia32_maxvmem = IA32_MAXVMEM; +SYSCTL_ULONG(_compat_ia32, OID_AUTO, maxvmem, CTLFLAG_RW, &ia32_maxvmem, 0, ""); + +struct sysentvec ia32_freebsd_sysvec = { + FREEBSD32_SYS_MAXSYSCALL, + freebsd32_sysent, + 0, + 0, + NULL, + 0, + NULL, + NULL, + elf32_freebsd_fixup, + ia32_sendsig, + ia32_sigcode, + &sz_ia32_sigcode, + NULL, + "FreeBSD ELF32", + elf32_coredump, + NULL, + MINSIGSTKSZ, + IA32_PAGE_SIZE, + 0, + FREEBSD32_USRSTACK, + FREEBSD32_USRSTACK, + FREEBSD32_PS_STRINGS, + VM_PROT_ALL, + ia32_copyout_strings, + ia32_setregs, + ia32_fixlimit, + &ia32_maxssiz +}; + + +static Elf32_Brandinfo ia32_brand_info = { + ELFOSABI_FREEBSD, + EM_386, + "FreeBSD", + NULL, + "/libexec/ld-elf.so.1", + &ia32_freebsd_sysvec, + "/libexec/ld-elf32.so.1", + BI_CAN_EXEC_DYN, + }; + +SYSINIT(ia32, SI_SUB_EXEC, SI_ORDER_ANY, + (sysinit_cfunc_t) elf32_insert_brand_entry, + &ia32_brand_info); + +static Elf32_Brandinfo ia32_brand_oinfo = { + ELFOSABI_FREEBSD, + EM_386, + "FreeBSD", + NULL, + "/usr/libexec/ld-elf.so.1", + &ia32_freebsd_sysvec, + "/libexec/ld-elf32.so.1", + BI_CAN_EXEC_DYN, + }; + +SYSINIT(oia32, SI_SUB_EXEC, SI_ORDER_ANY, + (sysinit_cfunc_t) elf32_insert_brand_entry, + &ia32_brand_oinfo); + + +void +elf32_dump_thread(struct thread *td __unused, void *dst __unused, + size_t *off __unused) +{ +} + + +/* XXX may be freebsd32 MI */ +static register_t * +ia32_copyout_strings(struct image_params *imgp) +{ + int argc, envc; + u_int32_t *vectp; + char *stringp, *destp; + u_int32_t *stack_base; + struct freebsd32_ps_strings *arginfo; + int szsigcode; + + /* + * Calculate string base and vector table pointers. + * Also deal with signal trampoline code for this exec type. + */ + arginfo = (struct freebsd32_ps_strings *)FREEBSD32_PS_STRINGS; + szsigcode = *(imgp->proc->p_sysent->sv_szsigcode); + destp = (caddr_t)arginfo - szsigcode - SPARE_USRSPACE - + roundup((ARG_MAX - imgp->args->stringspace), sizeof(char *)); + + /* + * install sigcode + */ + if (szsigcode) + copyout(imgp->proc->p_sysent->sv_sigcode, + ((caddr_t)arginfo - szsigcode), szsigcode); + + /* + * If we have a valid auxargs ptr, prepare some room + * on the stack. + */ + if (imgp->auxargs) { + /* + * 'AT_COUNT*2' is size for the ELF Auxargs data. This is for + * lower compatibility. + */ + imgp->auxarg_size = (imgp->auxarg_size) ? imgp->auxarg_size + : (AT_COUNT * 2); + /* + * The '+ 2' is for the null pointers at the end of each of + * the arg and env vector sets,and imgp->auxarg_size is room + * for argument of Runtime loader. + */ + vectp = (u_int32_t *) (destp - (imgp->args->argc + imgp->args->envc + 2 + + imgp->auxarg_size) * sizeof(u_int32_t)); + + } else + /* + * The '+ 2' is for the null pointers at the end of each of + * the arg and env vector sets + */ + vectp = (u_int32_t *) + (destp - (imgp->args->argc + imgp->args->envc + 2) * sizeof(u_int32_t)); + + /* + * vectp also becomes our initial stack base + */ + stack_base = vectp; + + stringp = imgp->args->begin_argv; + argc = imgp->args->argc; + envc = imgp->args->envc; + /* + * Copy out strings - arguments and environment. + */ + copyout(stringp, destp, ARG_MAX - imgp->args->stringspace); + + /* + * Fill in "ps_strings" struct for ps, w, etc. + */ + suword32(&arginfo->ps_argvstr, (u_int32_t)(intptr_t)vectp); + suword32(&arginfo->ps_nargvstr, argc); + + /* + * Fill in argument portion of vector table. + */ + for (; argc > 0; --argc) { + suword32(vectp++, (u_int32_t)(intptr_t)destp); + while (*stringp++ != 0) + destp++; + destp++; + } + + /* a null vector table pointer separates the argp's from the envp's */ + suword32(vectp++, 0); + + suword32(&arginfo->ps_envstr, (u_int32_t)(intptr_t)vectp); + suword32(&arginfo->ps_nenvstr, envc); + + /* + * Fill in environment portion of vector table. + */ + for (; envc > 0; --envc) { + suword32(vectp++, (u_int32_t)(intptr_t)destp); + while (*stringp++ != 0) + destp++; + destp++; + } + + /* end of vector table is a null pointer */ + suword32(vectp, 0); + + return ((register_t *)stack_base); +} + +static void +ia32_fixlimit(struct rlimit *rl, int which) +{ + + switch (which) { + case RLIMIT_DATA: + if (ia32_maxdsiz != 0) { + if (rl->rlim_cur > ia32_maxdsiz) + rl->rlim_cur = ia32_maxdsiz; + if (rl->rlim_max > ia32_maxdsiz) + rl->rlim_max = ia32_maxdsiz; + } + break; + case RLIMIT_STACK: + if (ia32_maxssiz != 0) { + if (rl->rlim_cur > ia32_maxssiz) + rl->rlim_cur = ia32_maxssiz; + if (rl->rlim_max > ia32_maxssiz) + rl->rlim_max = ia32_maxssiz; + } + break; + case RLIMIT_VMEM: + if (ia32_maxvmem != 0) { + if (rl->rlim_cur > ia32_maxvmem) + rl->rlim_cur = ia32_maxvmem; + if (rl->rlim_max > ia32_maxvmem) + rl->rlim_max = ia32_maxvmem; + } + break; + } +} diff --git a/sys/compat/ia32/ia32_util.h b/sys/compat/ia32/ia32_util.h new file mode 100644 index 000000000000..a2b88cb4272e --- /dev/null +++ b/sys/compat/ia32/ia32_util.h @@ -0,0 +1,49 @@ +/*- + * Copyright (c) 1998-1999 Andrew Gallatin + * All rights reserved. + * + * 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 + * in this position and unchanged. + * 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. The name of the author may not be used to endorse or promote products + * derived from this software withough specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <vm/vm.h> +#include <vm/vm_param.h> +#include <vm/pmap.h> + + +#include <sys/exec.h> +#include <sys/sysent.h> +#include <sys/cdefs.h> + +#ifdef __ia64__ +#define FREEBSD32_USRSTACK ((1ul << 32) - IA32_PAGE_SIZE * 2) +#else +#define FREEBSD32_USRSTACK ((1ul << 32) - IA32_PAGE_SIZE) +#endif + +#define IA32_PAGE_SIZE 4096 +#define IA32_MAXDSIZ (512*1024*1024) /* 512MB */ +#define IA32_MAXSSIZ (64*1024*1024) /* 64MB */ +#define IA32_MAXVMEM 0 /* Unlimited */ |