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Diffstat (limited to 'sim/ppc/emul_netbsd.c')
| -rw-r--r-- | sim/ppc/emul_netbsd.c | 1439 |
1 files changed, 1439 insertions, 0 deletions
diff --git a/sim/ppc/emul_netbsd.c b/sim/ppc/emul_netbsd.c new file mode 100644 index 00000000000..e2064a45afb --- /dev/null +++ b/sim/ppc/emul_netbsd.c @@ -0,0 +1,1439 @@ +/* This file is part of the program psim. + + Copyright (C) 1994-1998, Andrew Cagney <cagney@highland.com.au> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + */ + + +#ifndef _EMUL_NETBSD_C_ +#define _EMUL_NETBSD_C_ + + +/* Note: this module is called via a table. There is no benefit in + making it inline */ + +#include "emul_generic.h" +#include "emul_netbsd.h" + +#ifdef HAVE_STRING_H +#include <string.h> +#else +#ifdef HAVE_STRINGS_H +#include <strings.h> +#endif +#endif + +#include <sys/types.h> +#include <sys/stat.h> +#include <stdio.h> +#include <signal.h> +#include <fcntl.h> +#include <sys/errno.h> +#include <sys/param.h> +#include <sys/time.h> + +#ifdef HAVE_GETRUSAGE +#ifndef HAVE_SYS_RESOURCE_H +#undef HAVE_GETRUSAGE +#endif +#endif + +#ifdef HAVE_GETRUSAGE +#include <sys/resource.h> +int getrusage(); +#endif + +#if HAVE_SYS_IOCTL_H +#include <sys/ioctl.h> +#endif + +#if HAVE_DIRENT_H +# include <dirent.h> +# define NAMLEN(dirent) strlen((dirent)->d_name) +#else +# define dirent direct +# define NAMLEN(dirent) (dirent)->d_namlen +# if HAVE_SYS_NDIR_H +# include <sys/ndir.h> +# endif +# if HAVE_SYS_DIR_H +# include <sys/dir.h> +# endif +# if HAVE_NDIR_H +# include <ndir.h> +# endif +#endif + +#ifdef HAVE_UNISTD_H +#undef MAXPATHLEN /* sys/param.h might define this also */ +#include <unistd.h> +#endif + +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif + +#define WITH_NetBSD_HOST (NetBSD >= 199306) +#if WITH_NetBSD_HOST /* here NetBSD as that is what we're emulating */ +#include <sys/syscall.h> /* FIXME - should not be including this one */ +#include <sys/sysctl.h> +extern int getdirentries(int fd, char *buf, int nbytes, long *basep); +#else + +/* If this is not netbsd, don't allow fstatfs or getdirentries at this time */ +#undef HAVE_FSTATFS +#undef HAVE_GETDIRENTRIES +#endif + +#if (BSD < 199306) /* here BSD as just a bug */ +extern int errno; +#endif + +#ifndef STATIC_INLINE_EMUL_NETBSD +#define STATIC_INLINE_EMUL_NETBSD STATIC_INLINE +#endif + + +#if WITH_NetBSD_HOST +#define SYS(X) ASSERT(call == (SYS_##X)) +#else +#define SYS(X) +#endif + +#if WITH_NetBSD_HOST && (PATH_MAX != 1024) +#error "PATH_MAX not 1024" +#elif !defined(PATH_MAX) +#define PATH_MAX 1024 +#endif + + +/* EMULATION + + NetBSD - Emulation of user programs for NetBSD/PPC + + DESCRIPTION + + */ + + +/* NetBSD's idea of what is needed to implement emulations */ + +struct _os_emul_data { + device *vm; + emul_syscall *syscalls; +}; + + + +STATIC_INLINE_EMUL_NETBSD void +write_stat(unsigned_word addr, + struct stat buf, + cpu *processor, + unsigned_word cia) +{ + H2T(buf.st_dev); + H2T(buf.st_ino); + H2T(buf.st_mode); + H2T(buf.st_nlink); + H2T(buf.st_uid); + H2T(buf.st_gid); + H2T(buf.st_size); + H2T(buf.st_atime); + /* H2T(buf.st_spare1); */ + H2T(buf.st_mtime); + /* H2T(buf.st_spare2); */ + H2T(buf.st_ctime); + /* H2T(buf.st_spare3); */ +#ifdef AC_STRUCT_ST_RDEV + H2T(buf.st_rdev); +#endif +#ifdef AC_STRUCT_ST_BLKSIZE + H2T(buf.st_blksize); +#endif +#ifdef AC_STRUCT_ST_BLOCKS + H2T(buf.st_blocks); +#endif +#if WITH_NetBSD_HOST + H2T(buf.st_flags); + H2T(buf.st_gen); +#endif + emul_write_buffer(&buf, addr, sizeof(buf), processor, cia); +} + + +#ifdef HAVE_FSTATFS +STATIC_INLINE_EMUL_NETBSD void +write_statfs(unsigned_word addr, + struct statfs buf, + cpu *processor, + unsigned_word cia) +{ + H2T(buf.f_type); + H2T(buf.f_flags); + H2T(buf.f_bsize); + H2T(buf.f_iosize); + H2T(buf.f_blocks); + H2T(buf.f_bfree); + H2T(buf.f_bavail); + H2T(buf.f_files); + H2T(buf.f_ffree); + H2T(buf.f_fsid.val[0]); + H2T(buf.f_fsid.val[1]); + H2T(buf.f_owner); + /* f_spare[4]; */ + /* f_fstypename[MFSNAMELEN]; */ + /* f_mntonname[MNAMELEN]; */ + /* f_mntfromname[MNAMELEN]; */ + emul_write_buffer(&buf, addr, sizeof(buf), processor, cia); +} +#endif + + +STATIC_INLINE_EMUL_NETBSD void +write_timeval(unsigned_word addr, + struct timeval t, + cpu *processor, + unsigned_word cia) +{ + H2T(t.tv_sec); + H2T(t.tv_usec); + emul_write_buffer(&t, addr, sizeof(t), processor, cia); +} + + +STATIC_INLINE_EMUL_NETBSD void +write_timezone(unsigned_word addr, + struct timezone tz, + cpu *processor, + unsigned_word cia) +{ + H2T(tz.tz_minuteswest); + H2T(tz.tz_dsttime); + emul_write_buffer(&tz, addr, sizeof(tz), processor, cia); +} + + +#ifdef HAVE_GETDIRENTRIES +STATIC_INLINE_EMUL_NETBSD void +write_direntries(unsigned_word addr, + char *buf, + int nbytes, + cpu *processor, + unsigned_word cia) +{ + while (nbytes > 0) { + struct dirent *out; + struct dirent *in = (struct dirent*)buf; + ASSERT(in->d_reclen <= nbytes); + out = (struct dirent*)zalloc(in->d_reclen); + memcpy(out/*dest*/, in/*src*/, in->d_reclen); + H2T(out->d_fileno); + H2T(out->d_reclen); + H2T(out->d_type); + H2T(out->d_namlen); + emul_write_buffer(out, addr, in->d_reclen, processor, cia); + nbytes -= in->d_reclen; + addr += in->d_reclen; + buf += in->d_reclen; + zfree(out); + } +} +#endif + + +#ifdef HAVE_GETRUSAGE +STATIC_INLINE_EMUL_NETBSD void +write_rusage(unsigned_word addr, + struct rusage rusage, + cpu *processor, + unsigned_word cia) +{ + H2T(rusage.ru_utime.tv_sec); /* user time used */ + H2T(rusage.ru_utime.tv_usec); + H2T(rusage.ru_stime.tv_sec); /* system time used */ + H2T(rusage.ru_stime.tv_usec); + H2T(rusage.ru_maxrss); /* integral max resident set size */ + H2T(rusage.ru_ixrss); /* integral shared text memory size */ + H2T(rusage.ru_idrss); /* integral unshared data size */ + H2T(rusage.ru_isrss); /* integral unshared stack size */ + H2T(rusage.ru_minflt); /* page reclaims */ + H2T(rusage.ru_majflt); /* page faults */ + H2T(rusage.ru_nswap); /* swaps */ + H2T(rusage.ru_inblock); /* block input operations */ + H2T(rusage.ru_oublock); /* block output operations */ + H2T(rusage.ru_msgsnd); /* messages sent */ + H2T(rusage.ru_msgrcv); /* messages received */ + H2T(rusage.ru_nsignals); /* signals received */ + H2T(rusage.ru_nvcsw); /* voluntary context switches */ + H2T(rusage.ru_nivcsw); /* involuntary context switches */ + emul_write_buffer(&rusage, addr, sizeof(rusage), processor, cia); +} +#endif + +static void +do_exit(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int status = (int)cpu_registers(processor)->gpr[arg0]; + SYS(exit); + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d)\n", status); + + cpu_halt(processor, cia, was_exited, status); +} + + +static void +do_read(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + void *scratch_buffer; + int d = (int)cpu_registers(processor)->gpr[arg0]; + unsigned_word buf = cpu_registers(processor)->gpr[arg0+1]; + int nbytes = cpu_registers(processor)->gpr[arg0+2]; + int status; + SYS(read); + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, 0x%lx, %d", d, (long)buf, nbytes); + + /* get a tempoary bufer */ + scratch_buffer = zalloc(nbytes); + + /* check if buffer exists by reading it */ + emul_read_buffer(scratch_buffer, buf, nbytes, processor, cia); + + /* read */ +#if 0 + if (d == 0) { + status = fread (scratch_buffer, 1, nbytes, stdin); + if (status == 0 && ferror (stdin)) + status = -1; + } +#endif + status = read (d, scratch_buffer, nbytes); + + emul_write_status(processor, status, errno); + if (status > 0) + emul_write_buffer(scratch_buffer, buf, status, processor, cia); + + zfree(scratch_buffer); +} + + +static void +do_write(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + void *scratch_buffer = NULL; + int d = (int)cpu_registers(processor)->gpr[arg0]; + unsigned_word buf = cpu_registers(processor)->gpr[arg0+1]; + int nbytes = cpu_registers(processor)->gpr[arg0+2]; + int status; + SYS(write); + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, 0x%lx, %d", d, (long)buf, nbytes); + + /* get a tempoary bufer */ + scratch_buffer = zalloc(nbytes); /* FIXME - nbytes == 0 */ + + /* copy in */ + emul_read_buffer(scratch_buffer, buf, nbytes, + processor, cia); + + /* write */ + status = write(d, scratch_buffer, nbytes); + emul_write_status(processor, status, errno); + zfree(scratch_buffer); + + flush_stdoutput(); +} + + +static void +do_open(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + unsigned_word path_addr = cpu_registers(processor)->gpr[arg0]; + char path_buf[PATH_MAX]; + char *path = emul_read_string(path_buf, path_addr, PATH_MAX, processor, cia); + int flags = (int)cpu_registers(processor)->gpr[arg0+1]; + int mode = (int)cpu_registers(processor)->gpr[arg0+2]; + int status; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("0x%lx [%s], 0x%x, 0x%x", (long)path_addr, path, flags, mode); + + SYS(open); + + /* Can't combine these statements, cuz open sets errno. */ + status = open(path, flags, mode); + emul_write_status(processor, status, errno); +} + + +static void +do_close(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int d = (int)cpu_registers(processor)->gpr[arg0]; + int status; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d", d); + + SYS(close); + + /* Can't combine these statements, cuz close sets errno. */ + status = close(d); + emul_write_status(processor, status, errno); +} + + +static void +do_break(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + /* just pass this onto the `vm' device */ + unsigned_word new_break = cpu_registers(processor)->gpr[arg0]; + int status; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("0x%lx", (long)cpu_registers(processor)->gpr[arg0]); + + SYS(break); + status = device_ioctl(emul->vm, + processor, + cia, + device_ioctl_break, + new_break); /*ioctl-data*/ + emul_write_status(processor, 0, status); +} + + +#ifndef HAVE_GETPID +#define do_getpid 0 +#else +static void +do_getpid(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + SYS(getpid); + emul_write_status(processor, (int)getpid(), 0); +} +#endif + +#ifndef HAVE_GETUID +#define do_getuid 0 +#else +static void +do_getuid(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + SYS(getuid); + emul_write_status(processor, (int)getuid(), 0); +} +#endif + +#ifndef HAVE_GETEUID +#define do_geteuid 0 +#else +static void +do_geteuid(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + SYS(geteuid); + emul_write_status(processor, (int)geteuid(), 0); +} +#endif + +#ifndef HAVE_KILL +#define do_kill 0 +#else +static void +do_kill(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + pid_t pid = cpu_registers(processor)->gpr[arg0]; + int sig = cpu_registers(processor)->gpr[arg0+1]; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, %d", (int)pid, sig); + + SYS(kill); + printf_filtered("SYS_kill at 0x%lx - more to this than just being killed\n", + (long)cia); + cpu_halt(processor, cia, was_signalled, sig); +} +#endif + +#ifndef HAVE_DUP +#define do_dup 0 +#else +static void +do_dup(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int oldd = cpu_registers(processor)->gpr[arg0]; + int status = dup(oldd); + int err = errno; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d", oldd); + + SYS(dup); + emul_write_status(processor, status, err); +} +#endif + +#ifndef HAVE_GETEGID +#define do_getegid 0 +#else +static void +do_getegid(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + SYS(getegid); + emul_write_status(processor, (int)getegid(), 0); +} +#endif + +#ifndef HAVE_GETGID +#define do_getgid 0 +#else +static void +do_getgid(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + SYS(getgid); + emul_write_status(processor, (int)getgid(), 0); +} +#endif + +#ifndef HAVE_SIGPROCMASK +#define do_sigprocmask 0 +#else +static void +do_sigprocmask(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + natural_word how = cpu_registers(processor)->gpr[arg0]; + unsigned_word set = cpu_registers(processor)->gpr[arg0+1]; + unsigned_word oset = cpu_registers(processor)->gpr[arg0+2]; + SYS(sigprocmask); + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%ld, 0x%ld, 0x%ld", (long)how, (long)set, (long)oset); + + emul_write_status(processor, 0, 0); + cpu_registers(processor)->gpr[4] = set; +} +#endif + +#ifndef HAVE_IOCTL +#define do_ioctl 0 +#else +static void +do_ioctl(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int d = cpu_registers(processor)->gpr[arg0]; + unsigned request = cpu_registers(processor)->gpr[arg0+1]; + unsigned_word argp_addr = cpu_registers(processor)->gpr[arg0+2]; + +#if !WITH_NetBSD_HOST + cpu_registers(processor)->gpr[arg0] = 0; /* just succeed */ +#else + unsigned dir = request & IOC_DIRMASK; + int status; + SYS(ioctl); + /* what we haven't done */ + if (dir & IOC_IN /* write into the io device */ + || dir & IOC_OUT + || !(dir & IOC_VOID)) + error("do_ioctl() read or write of parameter not implemented\n"); + status = ioctl(d, request, NULL); + emul_write_status(processor, status, errno); +#endif + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, 0x%x, 0x%lx", d, request, (long)argp_addr); +} +#endif + +#ifndef HAVE_UMASK +#define do_umask 0 +#else +static void +do_umask(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int mask = cpu_registers(processor)->gpr[arg0]; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("0%o", mask); + + SYS(umask); + emul_write_status(processor, umask(mask), 0); +} +#endif + +#ifndef HAVE_DUP2 +#define do_dup2 0 +#else +static void +do_dup2(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int oldd = cpu_registers(processor)->gpr[arg0]; + int newd = cpu_registers(processor)->gpr[arg0+1]; + int status = dup2(oldd, newd); + int err = errno; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, %d", oldd, newd); + + SYS(dup2); + emul_write_status(processor, status, err); +} +#endif + +#ifndef HAVE_FCNTL +#define do_fcntl 0 +#else +static void +do_fcntl(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int fd = cpu_registers(processor)->gpr[arg0]; + int cmd = cpu_registers(processor)->gpr[arg0+1]; + int arg = cpu_registers(processor)->gpr[arg0+2]; + int status; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, %d, %d", fd, cmd, arg); + + SYS(fcntl); + status = fcntl(fd, cmd, arg); + emul_write_status(processor, status, errno); +} +#endif + +#ifndef HAVE_GETTIMEOFDAY +#define do_gettimeofday 0 +#else +static void +do_gettimeofday(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + unsigned_word t_addr = cpu_registers(processor)->gpr[arg0]; + unsigned_word tz_addr = cpu_registers(processor)->gpr[arg0+1]; + struct timeval t; + struct timezone tz; + int status = gettimeofday((t_addr != 0 ? &t : NULL), + (tz_addr != 0 ? &tz : NULL)); + int err = errno; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("0x%lx, 0x%lx", (long)t_addr, (long)tz_addr); + + SYS(gettimeofday); + emul_write_status(processor, status, err); + if (status == 0) { + if (t_addr != 0) + write_timeval(t_addr, t, processor, cia); + if (tz_addr != 0) + write_timezone(tz_addr, tz, processor, cia); + } +} +#endif + +#ifndef HAVE_GETRUSAGE +#define do_getrusage 0 +#else +static void +do_getrusage(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int who = cpu_registers(processor)->gpr[arg0]; + unsigned_word rusage_addr = cpu_registers(processor)->gpr[arg0+1]; + struct rusage rusage; + int status = getrusage(who, (rusage_addr != 0 ? &rusage : NULL)); + int err = errno; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, 0x%lx", who, (long)rusage_addr); + + SYS(getrusage); + emul_write_status(processor, status, err); + if (status == 0) { + if (rusage_addr != 0) + write_rusage(rusage_addr, rusage, processor, cia); + } +} +#endif + + +#ifndef HAVE_FSTATFS +#define do_fstatfs 0 +#else +static void +do_fstatfs(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int fd = cpu_registers(processor)->gpr[arg0]; + unsigned_word buf_addr = cpu_registers(processor)->gpr[arg0+1]; + struct statfs buf; + int status; + + if (WITH_TRACE && ppc_trace[trace_os_emul]) + printf_filtered ("%d, 0x%lx", fd, (long)buf_addr); + + SYS(fstatfs); + status = fstatfs(fd, (buf_addr == 0 ? NULL : &buf)); + emul_write_status(processor, status, errno); + if (status == 0) { + if (buf_addr != 0) + write_statfs(buf_addr, buf, processor, cia); + } +} +#endif + +#ifndef HAVE_STAT +#define do_stat 0 +#else +static void +do_stat(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + char path_buf[PATH_MAX]; + unsigned_word path_addr = cpu_registers(processor)->gpr[arg0]; + unsigned_word stat_buf_addr = cpu_registers(processor)->gpr[arg0+1]; + char *path = emul_read_string(path_buf, path_addr, PATH_MAX, processor, cia); + struct stat buf; + int status; + SYS(stat); + status = stat(path, &buf); + emul_write_status(processor, status, errno); + if (status == 0) + write_stat(stat_buf_addr, buf, processor, cia); +} +#endif + +#ifndef HAVE_FSTAT +#define do_fstat 0 +#else +static void +do_fstat(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int fd = cpu_registers(processor)->gpr[arg0]; + unsigned_word stat_buf_addr = cpu_registers(processor)->gpr[arg0+1]; + struct stat buf; + int status; + SYS(fstat); + /* Can't combine these statements, cuz fstat sets errno. */ + status = fstat(fd, &buf); + emul_write_status(processor, status, errno); + write_stat(stat_buf_addr, buf, processor, cia); +} +#endif + +#ifndef HAVE_LSTAT +#define do_lstat 0 +#else +static void +do_lstat(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + char path_buf[PATH_MAX]; + unsigned_word path_addr = cpu_registers(processor)->gpr[arg0]; + char *path = emul_read_string(path_buf, path_addr, PATH_MAX, processor, cia); + unsigned_word stat_buf_addr = cpu_registers(processor)->gpr[arg0+1]; + struct stat buf; + int status; + SYS(lstat); + /* Can't combine these statements, cuz lstat sets errno. */ + status = lstat(path, &buf); + emul_write_status(processor, status, errno); + write_stat(stat_buf_addr, buf, processor, cia); +} +#endif + +#ifndef HAVE_GETDIRENTRIES +#define do_getdirentries 0 +#else +static void +do_getdirentries(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int fd = cpu_registers(processor)->gpr[arg0]; + unsigned_word buf_addr = cpu_registers(processor)->gpr[arg0+1]; + char *buf; + int nbytes = cpu_registers(processor)->gpr[arg0+2]; + unsigned_word basep_addr = cpu_registers(processor)->gpr[arg0+3]; + long basep; + int status; + SYS(getdirentries); + if (buf_addr != 0 && nbytes >= 0) + buf = zalloc(nbytes); + else + buf = NULL; + status = getdirentries(fd, + (buf_addr == 0 ? NULL : buf), + nbytes, + (basep_addr == 0 ? NULL : &basep)); + emul_write_status(processor, status, errno); + if (basep_addr != 0) + emul_write_word(basep_addr, basep, processor, cia); + if (status > 0) + write_direntries(buf_addr, buf, status, processor, cia); + if (buf != NULL) + zfree(buf); +} +#endif + + +static void +do___syscall(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + SYS(__syscall); + emul_do_system_call(emul, + emul->syscalls, + cpu_registers(processor)->gpr[arg0], + arg0 + 1, + processor, + cia); +} + +#ifndef HAVE_LSEEK +#define do_lseek 0 +#else +static void +do_lseek(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + int fildes = cpu_registers(processor)->gpr[arg0]; + off_t offset = emul_read_gpr64(processor, arg0+2); + int whence = cpu_registers(processor)->gpr[arg0+4]; + off_t status; + SYS(lseek); + status = lseek(fildes, offset, whence); + if (status == -1) + emul_write_status(processor, -1, errno); + else { + emul_write_status(processor, 0, 0); /* success */ + emul_write_gpr64(processor, 3, status); + } +} +#endif + +static void +do___sysctl(os_emul_data *emul, + unsigned call, + const int arg0, + cpu *processor, + unsigned_word cia) +{ + /* call the arguments by their real name */ + unsigned_word name = cpu_registers(processor)->gpr[arg0]; + natural_word namelen = cpu_registers(processor)->gpr[arg0+1]; + unsigned_word oldp = cpu_registers(processor)->gpr[arg0+2]; + unsigned_word oldlenp = cpu_registers(processor)->gpr[arg0+3]; + natural_word oldlen; + natural_word mib; + natural_word int_val; + SYS(__sysctl); + + /* pluck out the management information base id */ + if (namelen < 1) + error("system_call()SYS___sysctl bad name[0]\n"); + mib = vm_data_map_read_word(cpu_data_map(processor), + name, + processor, + cia); + name += sizeof(mib); + + /* see what to do with it ... */ + switch ((int)mib) { + case 6/*CTL_HW*/: +#if WITH_NetBSD_HOST && (CTL_HW != 6) +# error "CTL_HW" +#endif + if (namelen < 2) + error("system_call()SYS___sysctl - CTL_HW - bad name[1]\n"); + mib = vm_data_map_read_word(cpu_data_map(processor), + name, + processor, + cia); + name += sizeof(mib); + switch ((int)mib) { + case 7/*HW_PAGESIZE*/: +#if WITH_NetBSD_HOST && (HW_PAGESIZE != 7) +# error "HW_PAGESIZE" +#endif + oldlen = vm_data_map_read_word(cpu_data_map(processor), + oldlenp, + processor, + cia); + if (sizeof(natural_word) > oldlen) + error("system_call()sysctl - CTL_HW.HW_PAGESIZE - to small\n"); + int_val = 8192; + oldlen = sizeof(int_val); + emul_write_word(oldp, int_val, processor, cia); + emul_write_word(oldlenp, oldlen, processor, cia); + break; + default: + error("sysctl() CTL_HW.%d unknown\n", mib); + break; + } + break; + default: + error("sysctl() name[0]=%d unknown\n", (int)mib); + break; + } + emul_write_status(processor, 0, 0); /* always succeed */ +} + + + +static emul_syscall_descriptor netbsd_descriptors[] = { + /* 0 */ { 0, "syscall" }, + /* 1 */ { do_exit, "exit" }, + /* 2 */ { 0, "fork" }, + /* 3 */ { do_read, "read" }, + /* 4 */ { do_write, "write" }, + /* 5 */ { do_open, "open" }, + /* 6 */ { do_close, "close" }, + /* 7 */ { 0, "wait4" }, + { 0, }, /* 8 is old creat */ + /* 9 */ { 0, "link" }, + /* 10 */ { 0, "unlink" }, + { 0, }, /* 11 is obsolete execv */ + /* 12 */ { 0, "chdir" }, + /* 13 */ { 0, "fchdir" }, + /* 14 */ { 0, "mknod" }, + /* 15 */ { 0, "chmod" }, + /* 16 */ { 0, "chown" }, + /* 17 */ { do_break, "break" }, + /* 18 */ { 0, "getfsstat" }, + { 0, }, /* 19 is old lseek */ + /* 20 */ { do_getpid, "getpid" }, + /* 21 */ { 0, "mount" }, + /* 22 */ { 0, "unmount" }, + /* 23 */ { 0, "setuid" }, + /* 24 */ { do_getuid, "getuid" }, + /* 25 */ { do_geteuid, "geteuid" }, + /* 26 */ { 0, "ptrace" }, + /* 27 */ { 0, "recvmsg" }, + /* 28 */ { 0, "sendmsg" }, + /* 29 */ { 0, "recvfrom" }, + /* 30 */ { 0, "accept" }, + /* 31 */ { 0, "getpeername" }, + /* 32 */ { 0, "getsockname" }, + /* 33 */ { 0, "access" }, + /* 34 */ { 0, "chflags" }, + /* 35 */ { 0, "fchflags" }, + /* 36 */ { 0, "sync" }, + /* 37 */ { do_kill, "kill" }, + { 0, }, /* 38 is old stat */ + /* 39 */ { 0, "getppid" }, + { 0, }, /* 40 is old lstat */ + /* 41 */ { do_dup, "dup" }, + /* 42 */ { 0, "pipe" }, + /* 43 */ { do_getegid, "getegid" }, + /* 44 */ { 0, "profil" }, + /* 45 */ { 0, "ktrace" }, + /* 46 */ { 0, "sigaction" }, + /* 47 */ { do_getgid, "getgid" }, + /* 48 */ { do_sigprocmask, "sigprocmask" }, + /* 49 */ { 0, "getlogin" }, + /* 50 */ { 0, "setlogin" }, + /* 51 */ { 0, "acct" }, + /* 52 */ { 0, "sigpending" }, + /* 53 */ { 0, "sigaltstack" }, + /* 54 */ { do_ioctl, "ioctl" }, + /* 55 */ { 0, "reboot" }, + /* 56 */ { 0, "revoke" }, + /* 57 */ { 0, "symlink" }, + /* 58 */ { 0, "readlink" }, + /* 59 */ { 0, "execve" }, + /* 60 */ { do_umask, "umask" }, + /* 61 */ { 0, "chroot" }, + { 0, }, /* 62 is old fstat */ + { 0, }, /* 63 is old getkerninfo */ + { 0, }, /* 64 is old getpagesize */ + /* 65 */ { 0, "msync" }, + /* 66 */ { 0, "vfork" }, + { 0, }, /* 67 is obsolete vread */ + { 0, }, /* 68 is obsolete vwrite */ + /* 69 */ { 0, "sbrk" }, + /* 70 */ { 0, "sstk" }, + { 0, }, /* 71 is old mmap */ + /* 72 */ { 0, "vadvise" }, + /* 73 */ { 0, "munmap" }, + /* 74 */ { 0, "mprotect" }, + /* 75 */ { 0, "madvise" }, + { 0, }, /* 76 is obsolete vhangup */ + { 0, }, /* 77 is obsolete vlimit */ + /* 78 */ { 0, "mincore" }, + /* 79 */ { 0, "getgroups" }, + /* 80 */ { 0, "setgroups" }, + /* 81 */ { 0, "getpgrp" }, + /* 82 */ { 0, "setpgid" }, + /* 83 */ { 0, "setitimer" }, + { 0, }, /* 84 is old wait */ + /* 85 */ { 0, "swapon" }, + /* 86 */ { 0, "getitimer" }, + { 0, }, /* 87 is old gethostname */ + { 0, }, /* 88 is old sethostname */ + { 0, }, /* 89 is old getdtablesize */ + { do_dup2, "dup2" }, + { 0, }, /* 91 */ + /* 92 */ { do_fcntl, "fcntl" }, + /* 93 */ { 0, "select" }, + { 0, }, /* 94 */ + /* 95 */ { 0, "fsync" }, + /* 96 */ { 0, "setpriority" }, + /* 97 */ { 0, "socket" }, + /* 98 */ { 0, "connect" }, + { 0, }, /* 99 is old accept */ + /* 100 */ { 0, "getpriority" }, + { 0, }, /* 101 is old send */ + { 0, }, /* 102 is old recv */ + /* 103 */ { 0, "sigreturn" }, + /* 104 */ { 0, "bind" }, + /* 105 */ { 0, "setsockopt" }, + /* 106 */ { 0, "listen" }, + { 0, }, /* 107 is obsolete vtimes */ + { 0, }, /* 108 is old sigvec */ + { 0, }, /* 109 is old sigblock */ + { 0, }, /* 110 is old sigsetmask */ + /* 111 */ { 0, "sigsuspend" }, + { 0, }, /* 112 is old sigstack */ + { 0, }, /* 113 is old recvmsg */ + { 0, }, /* 114 is old sendmsg */ + /* - is obsolete vtrace */ { 0, "vtrace 115" }, + /* 116 */ { do_gettimeofday, "gettimeofday" }, + /* 117 */ { do_getrusage, "getrusage" }, + /* 118 */ { 0, "getsockopt" }, + /* 119 */ { 0, "resuba" }, + /* 120 */ { 0, "readv" }, + /* 121 */ { 0, "writev" }, + /* 122 */ { 0, "settimeofday" }, + /* 123 */ { 0, "fchown" }, + /* 124 */ { 0, "fchmod" }, + { 0, }, /* 125 is old recvfrom */ + { 0, }, /* 126 is old setreuid */ + { 0, }, /* 127 is old setregid */ + /* 128 */ { 0, "rename" }, + { 0, }, /* 129 is old truncate */ + { 0, }, /* 130 is old ftruncate */ + /* 131 */ { 0, "flock" }, + /* 132 */ { 0, "mkfifo" }, + /* 133 */ { 0, "sendto" }, + /* 134 */ { 0, "shutdown" }, + /* 135 */ { 0, "socketpair" }, + /* 136 */ { 0, "mkdir" }, + /* 137 */ { 0, "rmdir" }, + /* 138 */ { 0, "utimes" }, + { 0, }, /* 139 is obsolete 4.2 sigreturn */ + /* 140 */ { 0, "adjtime" }, + { 0, }, /* 141 is old getpeername */ + { 0, }, /* 142 is old gethostid */ + { 0, }, /* 143 is old sethostid */ + { 0, }, /* 144 is old getrlimit */ + { 0, }, /* 145 is old setrlimit */ + { 0, }, /* 146 is old killpg */ + /* 147 */ { 0, "setsid" }, + /* 148 */ { 0, "quotactl" }, + { 0, }, /* 149 is old quota */ + { 0, }, /* 150 is old getsockname */ + { 0, }, /* 151 */ + { 0, }, /* 152 */ + { 0, }, /* 153 */ + { 0, }, /* 154 */ + /* 155 */ { 0, "nfssvc" }, + { 0, }, /* 156 is old getdirentries */ + /* 157 */ { 0, "statfs" }, + /* 158 */ { do_fstatfs, "fstatfs" }, + { 0, }, /* 159 */ + { 0, }, /* 160 */ + /* 161 */ { 0, "getfh" }, + { 0, }, /* 162 is old getdomainname */ + { 0, }, /* 163 is old setdomainname */ + { 0, }, /* 164 is old uname */ + /* 165 */ { 0, "sysarch" }, + { 0, }, /* 166 */ + { 0, }, /* 167 */ + { 0, }, /* 168 */ + /* 169 */ { 0, "semsys" }, + /* 170 */ { 0, "msgsys" }, + /* 171 */ { 0, "shmsys" }, + { 0, }, /* 172 */ + { 0, }, /* 173 */ + { 0, }, /* 174 */ + { 0, }, /* 175 */ + { 0, }, /* 176 */ + { 0, }, /* 177 */ + { 0, }, /* 178 */ + { 0, }, /* 179 */ + { 0, }, /* 180 */ + /* 181 */ { 0, "setgid" }, + /* 182 */ { 0, "setegid" }, + /* 183 */ { 0, "seteuid" }, + /* 184 */ { 0, "lfs_bmapv" }, + /* 185 */ { 0, "lfs_markv" }, + /* 186 */ { 0, "lfs_segclean" }, + /* 187 */ { 0, "lfs_segwait" }, + /* 188 */ { do_stat, "stat" }, + /* 189 */ { do_fstat, "fstat" }, + /* 190 */ { do_lstat, "lstat" }, + /* 191 */ { 0, "pathconf" }, + /* 192 */ { 0, "fpathconf" }, + { 0, }, /* 193 */ + /* 194 */ { 0, "getrlimit" }, + /* 195 */ { 0, "setrlimit" }, + /* 196 */ { do_getdirentries, "getdirentries" }, + /* 197 */ { 0, "mmap" }, + /* 198 */ { do___syscall, "__syscall" }, + /* 199 */ { do_lseek, "lseek" }, + /* 200 */ { 0, "truncate" }, + /* 201 */ { 0, "ftruncate" }, + /* 202 */ { do___sysctl, "__sysctl" }, + /* 203 */ { 0, "mlock" }, + /* 204 */ { 0, "munlock" }, +}; + +static char *(netbsd_error_names[]) = { + /* 0 */ "ESUCCESS", + /* 1 */ "EPERM", + /* 2 */ "ENOENT", + /* 3 */ "ESRCH", + /* 4 */ "EINTR", + /* 5 */ "EIO", + /* 6 */ "ENXIO", + /* 7 */ "E2BIG", + /* 8 */ "ENOEXEC", + /* 9 */ "EBADF", + /* 10 */ "ECHILD", + /* 11 */ "EDEADLK", + /* 12 */ "ENOMEM", + /* 13 */ "EACCES", + /* 14 */ "EFAULT", + /* 15 */ "ENOTBLK", + /* 16 */ "EBUSY", + /* 17 */ "EEXIST", + /* 18 */ "EXDEV", + /* 19 */ "ENODEV", + /* 20 */ "ENOTDIR", + /* 21 */ "EISDIR", + /* 22 */ "EINVAL", + /* 23 */ "ENFILE", + /* 24 */ "EMFILE", + /* 25 */ "ENOTTY", + /* 26 */ "ETXTBSY", + /* 27 */ "EFBIG", + /* 28 */ "ENOSPC", + /* 29 */ "ESPIPE", + /* 30 */ "EROFS", + /* 31 */ "EMLINK", + /* 32 */ "EPIPE", + /* 33 */ "EDOM", + /* 34 */ "ERANGE", + /* 35 */ "EAGAIN", + /* 36 */ "EINPROGRESS", + /* 37 */ "EALREADY", + /* 38 */ "ENOTSOCK", + /* 39 */ "EDESTADDRREQ", + /* 40 */ "EMSGSIZE", + /* 41 */ "EPROTOTYPE", + /* 42 */ "ENOPROTOOPT", + /* 43 */ "EPROTONOSUPPORT", + /* 44 */ "ESOCKTNOSUPPORT", + /* 45 */ "EOPNOTSUPP", + /* 46 */ "EPFNOSUPPORT", + /* 47 */ "EAFNOSUPPORT", + /* 48 */ "EADDRINUSE", + /* 49 */ "EADDRNOTAVAIL", + /* 50 */ "ENETDOWN", + /* 51 */ "ENETUNREACH", + /* 52 */ "ENETRESET", + /* 53 */ "ECONNABORTED", + /* 54 */ "ECONNRESET", + /* 55 */ "ENOBUFS", + /* 56 */ "EISCONN", + /* 57 */ "ENOTCONN", + /* 58 */ "ESHUTDOWN", + /* 59 */ "ETOOMANYREFS", + /* 60 */ "ETIMEDOUT", + /* 61 */ "ECONNREFUSED", + /* 62 */ "ELOOP", + /* 63 */ "ENAMETOOLONG", + /* 64 */ "EHOSTDOWN", + /* 65 */ "EHOSTUNREACH", + /* 66 */ "ENOTEMPTY", + /* 67 */ "EPROCLIM", + /* 68 */ "EUSERS", + /* 69 */ "EDQUOT", + /* 70 */ "ESTALE", + /* 71 */ "EREMOTE", + /* 72 */ "EBADRPC", + /* 73 */ "ERPCMISMATCH", + /* 74 */ "EPROGUNAVAIL", + /* 75 */ "EPROGMISMATCH", + /* 76 */ "EPROCUNAVAIL", + /* 77 */ "ENOLCK", + /* 78 */ "ENOSYS", + /* 79 */ "EFTYPE", + /* 80 */ "EAUTH", + /* 81 */ "ENEEDAUTH", + /* 81 */ "ELAST", +}; + +static char *(netbsd_signal_names[]) = { + /* 0 */ 0, + /* 1 */ "SIGHUP", + /* 2 */ "SIGINT", + /* 3 */ "SIGQUIT", + /* 4 */ "SIGILL", + /* 5 */ "SIGTRAP", + /* 6 */ "SIGABRT", + /* 7 */ "SIGEMT", + /* 8 */ "SIGFPE", + /* 9 */ "SIGKILL", + /* 10 */ "SIGBUS", + /* 11 */ "SIGSEGV", + /* 12 */ "SIGSYS", + /* 13 */ "SIGPIPE", + /* 14 */ "SIGALRM", + /* 15 */ "SIGTERM", + /* 16 */ "SIGURG", + /* 17 */ "SIGSTOP", + /* 18 */ "SIGTSTP", + /* 19 */ "SIGCONT", + /* 20 */ "SIGCHLD", + /* 21 */ "SIGTTIN", + /* 22 */ "SIGTTOU", + /* 23 */ "SIGIO", + /* 24 */ "SIGXCPU", + /* 25 */ "SIGXFSZ", + /* 26 */ "SIGVTALRM", + /* 27 */ "SIGPROF", + /* 28 */ "SIGWINCH", + /* 29 */ "SIGINFO", + /* 30 */ "SIGUSR1", + /* 31 */ "SIGUSR2", +}; + +static emul_syscall emul_netbsd_syscalls = { + netbsd_descriptors, + sizeof(netbsd_descriptors) / sizeof(netbsd_descriptors[0]), + netbsd_error_names, + sizeof(netbsd_error_names) / sizeof(netbsd_error_names[0]), + netbsd_signal_names, + sizeof(netbsd_signal_names) / sizeof(netbsd_signal_names[0]), +}; + + +/* NetBSD's os_emul interface, most are just passed on to the generic + syscall stuff */ + +static os_emul_data * +emul_netbsd_create(device *root, + bfd *image, + const char *name) +{ + unsigned_word top_of_stack; + unsigned stack_size; + int elf_binary; + os_emul_data *bsd_data; + device *vm; + + /* check that this emulation is really for us */ + if (name != NULL && strcmp(name, "netbsd") != 0) + return NULL; + if (image == NULL) + return NULL; + + + /* merge any emulation specific entries into the device tree */ + + /* establish a few defaults */ + if (image->xvec->flavour == bfd_target_elf_flavour) { + elf_binary = 1; + top_of_stack = 0xe0000000; + stack_size = 0x00100000; + } + else { + elf_binary = 0; + top_of_stack = 0x20000000; + stack_size = 0x00100000; + } + + /* options */ + emul_add_tree_options(root, image, "netbsd", + (WITH_ENVIRONMENT == USER_ENVIRONMENT + ? "user" : "virtual"), + 0 /*oea-interrupt-prefix*/); + + /* virtual memory - handles growth of stack/heap */ + vm = tree_parse(root, "/openprom/vm"); + tree_parse(vm, "./stack-base 0x%lx", + (unsigned long)(top_of_stack - stack_size)); + tree_parse(vm, "./nr-bytes 0x%x", stack_size); + + tree_parse(root, "/openprom/vm/map-binary/file-name %s", + bfd_get_filename(image)); + + /* finish the init */ + tree_parse(root, "/openprom/init/register/pc 0x%lx", + (unsigned long)bfd_get_start_address(image)); + tree_parse(root, "/openprom/init/register/sp 0x%lx", + (unsigned long)top_of_stack); + tree_parse(root, "/openprom/init/register/msr 0x%x", + ((tree_find_boolean_property(root, "/options/little-endian?") + ? msr_little_endian_mode + : 0) + | (tree_find_boolean_property(root, "/openprom/options/floating-point?") + ? (msr_floating_point_available + | msr_floating_point_exception_mode_0 + | msr_floating_point_exception_mode_1) + : 0))); + tree_parse(root, "/openprom/init/stack/stack-type %s", + (elf_binary ? "ppc-elf" : "ppc-xcoff")); + + /* finally our emulation data */ + bsd_data = ZALLOC(os_emul_data); + bsd_data->vm = vm; + bsd_data->syscalls = &emul_netbsd_syscalls; + return bsd_data; +} + +static void +emul_netbsd_init(os_emul_data *emul_data, + int nr_cpus) +{ + /* nothing yet */ +} + +static void +emul_netbsd_system_call(cpu *processor, + unsigned_word cia, + os_emul_data *emul_data) +{ + emul_do_system_call(emul_data, + emul_data->syscalls, + cpu_registers(processor)->gpr[0], + 3, /*r3 contains arg0*/ + processor, + cia); +} + +const os_emul emul_netbsd = { + "netbsd", + emul_netbsd_create, + emul_netbsd_init, + emul_netbsd_system_call, + 0, /*instruction_call*/ + 0 /*data*/ +}; + +#endif _EMUL_NETBSD_C_ |