diff options
Diffstat (limited to 'qemu/linux-user/m68k-sim.c')
| -rw-r--r-- | qemu/linux-user/m68k-sim.c | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/qemu/linux-user/m68k-sim.c b/qemu/linux-user/m68k-sim.c deleted file mode 100644 index 34d332d8b..000000000 --- a/qemu/linux-user/m68k-sim.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * m68k simulator syscall interface - * - * Copyright (c) 2005 CodeSourcery, LLC. Written by Paul Brook. - * - * 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, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" - -#include "qemu.h" - -#define SYS_EXIT 1 -#define SYS_READ 3 -#define SYS_WRITE 4 -#define SYS_OPEN 5 -#define SYS_CLOSE 6 -#define SYS_BRK 17 -#define SYS_FSTAT 28 -#define SYS_ISATTY 29 -#define SYS_LSEEK 199 - -struct m68k_sim_stat { - uint16_t sim_st_dev; - uint16_t sim_st_ino; - uint32_t sim_st_mode; - uint16_t sim_st_nlink; - uint16_t sim_st_uid; - uint16_t sim_st_gid; - uint16_t sim_st_rdev; - uint32_t sim_st_size; - uint32_t sim_st_atime; - uint32_t sim_st_mtime; - uint32_t sim_st_ctime; - uint32_t sim_st_blksize; - uint32_t sim_st_blocks; -}; - -static inline uint32_t check_err(CPUM68KState *env, uint32_t code) -{ - env->dregs[0] = code; - if (code == (uint32_t)-1) { - env->dregs[1] = errno; - } else { - env->dregs[1] = 0; - } - return code; -} - -#define SIM_O_APPEND 0x0008 -#define SIM_O_CREAT 0x0200 -#define SIM_O_TRUNC 0x0400 -#define SIM_O_EXCL 0x0800 -#define SIM_O_NONBLOCK 0x4000 -#define SIM_O_NOCTTY 0x8000 -#define SIM_O_SYNC 0x2000 - -static int translate_openflags(int flags) -{ - int hf; - - switch (flags & 3) { - case 0: hf = O_RDONLY; break; - case 1: hf = O_WRONLY; break; - case 2: hf = O_RDWR; break; - default: hf = O_RDWR; break; - } - - if (flags & SIM_O_APPEND) hf |= O_APPEND; - if (flags & SIM_O_CREAT) hf |= O_CREAT; - if (flags & SIM_O_TRUNC) hf |= O_TRUNC; - if (flags & SIM_O_EXCL) hf |= O_EXCL; - if (flags & SIM_O_NONBLOCK) hf |= O_NONBLOCK; - if (flags & SIM_O_NOCTTY) hf |= O_NOCTTY; - if (flags & SIM_O_SYNC) hf |= O_SYNC; - - return hf; -} - -#define ARG(x) tswap32(args[x]) -void do_m68k_simcall(CPUM68KState *env, int nr) -{ - M68kCPU *cpu = m68k_env_get_cpu(env); - uint32_t *args; - - args = (uint32_t *)(unsigned long)(env->aregs[7] + 4); - switch (nr) { - case SYS_EXIT: - exit(ARG(0)); - case SYS_READ: - check_err(env, read(ARG(0), (void *)(unsigned long)ARG(1), ARG(2))); - break; - case SYS_WRITE: - check_err(env, write(ARG(0), (void *)(unsigned long)ARG(1), ARG(2))); - break; - case SYS_OPEN: - check_err(env, open((char *)(unsigned long)ARG(0), - translate_openflags(ARG(1)), ARG(2))); - break; - case SYS_CLOSE: - { - /* Ignore attempts to close stdin/out/err. */ - int fd = ARG(0); - if (fd > 2) - check_err(env, close(fd)); - else - check_err(env, 0); - break; - } - case SYS_BRK: - { - int32_t ret; - - ret = do_brk((abi_ulong)ARG(0)); - if (ret == -ENOMEM) - ret = -1; - check_err(env, ret); - } - break; - case SYS_FSTAT: - { - struct stat s; - int rc; - struct m68k_sim_stat *p; - rc = check_err(env, fstat(ARG(0), &s)); - if (rc == 0) { - p = (struct m68k_sim_stat *)(unsigned long)ARG(1); - p->sim_st_dev = tswap16(s.st_dev); - p->sim_st_ino = tswap16(s.st_ino); - p->sim_st_mode = tswap32(s.st_mode); - p->sim_st_nlink = tswap16(s.st_nlink); - p->sim_st_uid = tswap16(s.st_uid); - p->sim_st_gid = tswap16(s.st_gid); - p->sim_st_rdev = tswap16(s.st_rdev); - p->sim_st_size = tswap32(s.st_size); - p->sim_st_atime = tswap32(s.st_atime); - p->sim_st_mtime = tswap32(s.st_mtime); - p->sim_st_ctime = tswap32(s.st_ctime); - p->sim_st_blksize = tswap32(s.st_blksize); - p->sim_st_blocks = tswap32(s.st_blocks); - } - } - break; - case SYS_ISATTY: - check_err(env, isatty(ARG(0))); - break; - case SYS_LSEEK: - check_err(env, lseek(ARG(0), (int32_t)ARG(1), ARG(2))); - break; - default: - cpu_abort(CPU(cpu), "Unsupported m68k sim syscall %d\n", nr); - } -} |