2 * m68k simulator syscall interface
4 * Copyright (c) 2005 CodeSourcery, LLC. Written by Paul Brook.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <sys/types.h>
42 struct m86k_sim_stat {
46 uint16_t sim_st_nlink;
51 uint32_t sim_st_atime;
52 uint32_t sim_st_mtime;
53 uint32_t sim_st_ctime;
54 uint32_t sim_st_blksize;
55 uint32_t sim_st_blocks;
58 static inline uint32_t check_err(CPUM68KState *env, uint32_t code)
61 if (code == (uint32_t)-1) {
62 env->dregs[1] = errno;
69 #define SIM_O_APPEND 0x0008
70 #define SIM_O_CREAT 0x0200
71 #define SIM_O_TRUNC 0x0400
72 #define SIM_O_EXCL 0x0800
73 #define SIM_O_NONBLOCK 0x4000
74 #define SIM_O_NOCTTY 0x8000
75 #define SIM_O_SYNC 0x2000
77 static int translate_openflags(int flags)
82 case 0: hf = O_RDONLY; break;
83 case 1: hf = O_WRONLY; break;
84 case 2: hf = O_RDWR; break;
85 default: hf = O_RDWR; break;
88 if (flags & SIM_O_APPEND) hf |= O_APPEND;
89 if (flags & SIM_O_CREAT) hf |= O_CREAT;
90 if (flags & SIM_O_TRUNC) hf |= O_TRUNC;
91 if (flags & SIM_O_EXCL) hf |= O_EXCL;
92 if (flags & SIM_O_NONBLOCK) hf |= O_NONBLOCK;
93 if (flags & SIM_O_NOCTTY) hf |= O_NOCTTY;
94 if (flags & SIM_O_SYNC) hf |= O_SYNC;
99 #define ARG(x) tswap32(args[x])
100 void do_m68k_simcall(CPUM68KState *env, int nr)
104 args = (uint32_t *)(env->aregs[7] + 4);
109 check_err(env, read(ARG(0), (void *)ARG(1), ARG(2)));
112 check_err(env, write(ARG(0), (void *)ARG(1), ARG(2)));
115 check_err(env, open((char *)ARG(0), translate_openflags(ARG(1)),
120 /* Ignore attempts to close stdin/out/err. */
123 check_err(env, close(fd));
132 ret = do_brk((void *)ARG(0));
142 struct m86k_sim_stat *p;
143 rc = check_err(env, fstat(ARG(0), &s));
145 p = (struct m86k_sim_stat *)ARG(1);
146 p->sim_st_dev = tswap16(s.st_dev);
147 p->sim_st_ino = tswap16(s.st_ino);
148 p->sim_st_mode = tswap32(s.st_mode);
149 p->sim_st_nlink = tswap16(s.st_nlink);
150 p->sim_st_uid = tswap16(s.st_uid);
151 p->sim_st_gid = tswap16(s.st_gid);
152 p->sim_st_rdev = tswap16(s.st_rdev);
153 p->sim_st_size = tswap32(s.st_size);
154 p->sim_st_atime = tswap32(s.st_atime);
155 p->sim_st_mtime = tswap32(s.st_mtime);
156 p->sim_st_ctime = tswap32(s.st_ctime);
157 p->sim_st_blksize = tswap32(s.st_blksize);
158 p->sim_st_blocks = tswap32(s.st_blocks);
163 check_err(env, isatty(ARG(0)));
166 check_err(env, lseek(ARG(0), (int32_t)ARG(1), ARG(2)));
169 cpu_abort(env, "Unsupported m68k sim syscall %d\n", nr);