diff options
| -rw-r--r-- | bsd-user/arm/target_arch_elf.h | 1 | ||||
| -rw-r--r-- | bsd-user/elfload.c | 4 | ||||
| -rw-r--r-- | bsd-user/freebsd/meson.build | 1 | ||||
| -rw-r--r-- | bsd-user/freebsd/os-stat.c | 262 | ||||
| -rw-r--r-- | bsd-user/freebsd/os-stat.h | 663 | ||||
| -rw-r--r-- | bsd-user/freebsd/os-syscall.c | 122 | ||||
| -rw-r--r-- | bsd-user/freebsd/qemu-os.h | 50 | ||||
| -rw-r--r-- | bsd-user/i386/target_arch_elf.h | 1 | ||||
| -rw-r--r-- | bsd-user/main.c | 2 | ||||
| -rw-r--r-- | bsd-user/qemu.h | 85 | ||||
| -rw-r--r-- | bsd-user/signal.c | 5 | ||||
| -rw-r--r-- | bsd-user/syscall_defs.h | 221 | ||||
| -rw-r--r-- | bsd-user/x86_64/target_arch_elf.h | 1 | ||||
| -rw-r--r-- | include/qemu/compiler.h | 30 | ||||
| -rw-r--r-- | include/qemu/osdep.h | 13 |
15 files changed, 1384 insertions, 77 deletions
diff --git a/bsd-user/arm/target_arch_elf.h b/bsd-user/arm/target_arch_elf.h index 935bce3..b1c0fd2 100644 --- a/bsd-user/arm/target_arch_elf.h +++ b/bsd-user/arm/target_arch_elf.h @@ -20,7 +20,6 @@ #ifndef TARGET_ARCH_ELF_H #define TARGET_ARCH_ELF_H -#define ELF_START_MMAP 0x80000000 #define ELF_ET_DYN_LOAD_ADDR 0x500000 #define elf_check_arch(x) ((x) == EM_ARM) diff --git a/bsd-user/elfload.c b/bsd-user/elfload.c index 1f650bd..baf2f63 100644 --- a/bsd-user/elfload.c +++ b/bsd-user/elfload.c @@ -738,8 +738,6 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, /* OK, This is the point of no return */ info->end_data = 0; info->end_code = 0; - info->start_mmap = (abi_ulong)ELF_START_MMAP; - info->mmap = 0; elf_entry = (abi_ulong) elf_ex.e_entry; /* XXX Join this with PT_INTERP search? */ @@ -813,7 +811,7 @@ int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs, bprm->stringp, &elf_ex, load_addr, et_dyn_addr, interp_load_addr, info); info->load_addr = reloc_func_desc; - info->start_brk = info->brk = elf_brk; + info->brk = elf_brk; info->start_stack = bprm->p; info->load_bias = 0; diff --git a/bsd-user/freebsd/meson.build b/bsd-user/freebsd/meson.build index f87c788..f2f047c 100644 --- a/bsd-user/freebsd/meson.build +++ b/bsd-user/freebsd/meson.build @@ -1,4 +1,5 @@ bsd_user_ss.add(files( + 'os-stat.c', 'os-sys.c', 'os-syscall.c', )) diff --git a/bsd-user/freebsd/os-stat.c b/bsd-user/freebsd/os-stat.c new file mode 100644 index 0000000..f0f9e60 --- /dev/null +++ b/bsd-user/freebsd/os-stat.c @@ -0,0 +1,262 @@ +/* + * FreeBSD stat related conversion routines + * + * Copyright (c) 2013 Stacey D. Son + * + * 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" + +/* + * stat conversion + */ +abi_long h2t_freebsd11_stat(abi_ulong target_addr, + struct freebsd11_stat *host_st) +{ + struct target_freebsd11_stat *target_st; + + if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) { + return -TARGET_EFAULT; + } + memset(target_st, 0, sizeof(*target_st)); + __put_user(host_st->st_dev, &target_st->st_dev); + __put_user(host_st->st_ino, &target_st->st_ino); + __put_user(host_st->st_mode, &target_st->st_mode); + __put_user(host_st->st_nlink, &target_st->st_nlink); + __put_user(host_st->st_uid, &target_st->st_uid); + __put_user(host_st->st_gid, &target_st->st_gid); + __put_user(host_st->st_rdev, &target_st->st_rdev); + __put_user(host_st->st_atim.tv_sec, &target_st->st_atim.tv_sec); + __put_user(host_st->st_atim.tv_nsec, &target_st->st_atim.tv_nsec); + __put_user(host_st->st_mtim.tv_sec, &target_st->st_mtim.tv_sec); + __put_user(host_st->st_mtim.tv_nsec, &target_st->st_mtim.tv_nsec); + __put_user(host_st->st_ctim.tv_sec, &target_st->st_ctim.tv_sec); + __put_user(host_st->st_ctim.tv_nsec, &target_st->st_ctim.tv_nsec); + __put_user(host_st->st_size, &target_st->st_size); + __put_user(host_st->st_blocks, &target_st->st_blocks); + __put_user(host_st->st_blksize, &target_st->st_blksize); + __put_user(host_st->st_flags, &target_st->st_flags); + __put_user(host_st->st_gen, &target_st->st_gen); + /* st_lspare not used */ + __put_user(host_st->st_birthtim.tv_sec, &target_st->st_birthtim.tv_sec); + __put_user(host_st->st_birthtim.tv_nsec, &target_st->st_birthtim.tv_nsec); + unlock_user_struct(target_st, target_addr, 1); + + return 0; +} + +abi_long h2t_freebsd_stat(abi_ulong target_addr, + struct stat *host_st) +{ + struct target_stat *target_st; + + if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) { + return -TARGET_EFAULT; + } + memset(target_st, 0, sizeof(*target_st)); + __put_user(host_st->st_dev, &target_st->st_dev); + __put_user(host_st->st_ino, &target_st->st_ino); + __put_user(host_st->st_nlink, &target_st->st_nlink); + __put_user(host_st->st_mode, &target_st->st_mode); + __put_user(host_st->st_uid, &target_st->st_uid); + __put_user(host_st->st_gid, &target_st->st_gid); + __put_user(host_st->st_rdev, &target_st->st_rdev); + __put_user(host_st->st_atim.tv_sec, &target_st->st_atim.tv_sec); + __put_user(host_st->st_atim.tv_nsec, &target_st->st_atim.tv_nsec); +#ifdef TARGET_HAS_STAT_TIME_T_EXT +/* __put_user(host_st->st_mtim_ext, &target_st->st_mtim_ext); XXX */ +#endif + __put_user(host_st->st_mtim.tv_sec, &target_st->st_mtim.tv_sec); + __put_user(host_st->st_mtim.tv_nsec, &target_st->st_mtim.tv_nsec); +#ifdef TARGET_HAS_STAT_TIME_T_EXT +/* __put_user(host_st->st_ctim_ext, &target_st->st_ctim_ext); XXX */ +#endif + __put_user(host_st->st_ctim.tv_sec, &target_st->st_ctim.tv_sec); + __put_user(host_st->st_ctim.tv_nsec, &target_st->st_ctim.tv_nsec); +#ifdef TARGET_HAS_STAT_TIME_T_EXT +/* __put_user(host_st->st_birthtim_ext, &target_st->st_birthtim_ext); XXX */ +#endif + __put_user(host_st->st_birthtim.tv_sec, &target_st->st_birthtim.tv_sec); + __put_user(host_st->st_birthtim.tv_nsec, &target_st->st_birthtim.tv_nsec); + + __put_user(host_st->st_size, &target_st->st_size); + __put_user(host_st->st_blocks, &target_st->st_blocks); + __put_user(host_st->st_blksize, &target_st->st_blksize); + __put_user(host_st->st_flags, &target_st->st_flags); + __put_user(host_st->st_gen, &target_st->st_gen); + unlock_user_struct(target_st, target_addr, 1); + + return 0; +} + +abi_long h2t_freebsd11_nstat(abi_ulong target_addr, + struct freebsd11_stat *host_st) +{ + struct target_freebsd11_nstat *target_st; + + if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) { + return -TARGET_EFAULT; + } + memset(target_st, 0, sizeof(*target_st)); + __put_user(host_st->st_dev, &target_st->st_dev); + __put_user(host_st->st_ino, &target_st->st_ino); + __put_user(host_st->st_mode, &target_st->st_mode); + __put_user(host_st->st_nlink, &target_st->st_nlink); + __put_user(host_st->st_uid, &target_st->st_uid); + __put_user(host_st->st_gid, &target_st->st_gid); + __put_user(host_st->st_rdev, &target_st->st_rdev); + __put_user(host_st->st_atim.tv_sec, &target_st->st_atim.tv_sec); + __put_user(host_st->st_atim.tv_nsec, &target_st->st_atim.tv_nsec); + __put_user(host_st->st_mtim.tv_sec, &target_st->st_mtim.tv_sec); + __put_user(host_st->st_mtim.tv_nsec, &target_st->st_mtim.tv_nsec); + __put_user(host_st->st_ctim.tv_sec, &target_st->st_ctim.tv_sec); + __put_user(host_st->st_ctim.tv_nsec, &target_st->st_ctim.tv_nsec); + __put_user(host_st->st_size, &target_st->st_size); + __put_user(host_st->st_blocks, &target_st->st_blocks); + __put_user(host_st->st_blksize, &target_st->st_blksize); + __put_user(host_st->st_flags, &target_st->st_flags); + __put_user(host_st->st_gen, &target_st->st_gen); + __put_user(host_st->st_birthtim.tv_sec, &target_st->st_birthtim.tv_sec); + __put_user(host_st->st_birthtim.tv_nsec, &target_st->st_birthtim.tv_nsec); + unlock_user_struct(target_st, target_addr, 1); + + return 0; +} + +/* + * file handle conversion + */ +abi_long t2h_freebsd_fhandle(fhandle_t *host_fh, abi_ulong target_addr) +{ + target_freebsd_fhandle_t *target_fh; + + if (!lock_user_struct(VERIFY_READ, target_fh, target_addr, 1)) { + return -TARGET_EFAULT; + } + __get_user(host_fh->fh_fsid.val[0], &target_fh->fh_fsid.val[0]); + __get_user(host_fh->fh_fsid.val[1], &target_fh->fh_fsid.val[0]); + __get_user(host_fh->fh_fid.fid_len, &target_fh->fh_fid.fid_len); + /* u_short fid_data0; */ + memcpy(host_fh->fh_fid.fid_data, target_fh->fh_fid.fid_data, + TARGET_MAXFIDSZ); + unlock_user_struct(target_fh, target_addr, 0); + return 0; +} + +abi_long h2t_freebsd_fhandle(abi_ulong target_addr, fhandle_t *host_fh) +{ + target_freebsd_fhandle_t *target_fh; + + if (!lock_user_struct(VERIFY_WRITE, target_fh, target_addr, 0)) { + return -TARGET_EFAULT; + } + __put_user(host_fh->fh_fsid.val[0], &target_fh->fh_fsid.val[0]); + __put_user(host_fh->fh_fsid.val[1], &target_fh->fh_fsid.val[0]); + __put_user(host_fh->fh_fid.fid_len, &target_fh->fh_fid.fid_len); + /* u_short fid_data0; */ + memcpy(target_fh->fh_fid.fid_data, host_fh->fh_fid.fid_data, + TARGET_MAXFIDSZ); + unlock_user_struct(target_fh, target_addr, 1); + return 0; +} + +/* + * file system stat + */ +abi_long h2t_freebsd11_statfs(abi_ulong target_addr, + struct freebsd11_statfs *host_statfs) +{ + struct target_freebsd11_statfs *target_statfs; + + if (!lock_user_struct(VERIFY_WRITE, target_statfs, target_addr, 0)) { + return -TARGET_EFAULT; + } + __put_user(host_statfs->f_version, &target_statfs->f_version); + __put_user(host_statfs->f_type, &target_statfs->f_type); + __put_user(host_statfs->f_flags, &target_statfs->f_flags); + __put_user(host_statfs->f_bsize, &target_statfs->f_bsize); + __put_user(host_statfs->f_iosize, &target_statfs->f_iosize); + __put_user(host_statfs->f_blocks, &target_statfs->f_blocks); + __put_user(host_statfs->f_bfree, &target_statfs->f_bfree); + __put_user(host_statfs->f_bavail, &target_statfs->f_bavail); + __put_user(host_statfs->f_files, &target_statfs->f_files); + __put_user(host_statfs->f_ffree, &target_statfs->f_ffree); + __put_user(host_statfs->f_syncwrites, &target_statfs->f_syncwrites); + __put_user(host_statfs->f_asyncwrites, &target_statfs->f_asyncwrites); + __put_user(host_statfs->f_syncreads, &target_statfs->f_syncreads); + __put_user(host_statfs->f_asyncreads, &target_statfs->f_asyncreads); + /* uint64_t f_spare[10]; */ + __put_user(host_statfs->f_namemax, &target_statfs->f_namemax); + __put_user(host_statfs->f_owner, &target_statfs->f_owner); + __put_user(host_statfs->f_fsid.val[0], &target_statfs->f_fsid.val[0]); + __put_user(host_statfs->f_fsid.val[1], &target_statfs->f_fsid.val[1]); + /* char f_charspace[80]; */ + strncpy(target_statfs->f_fstypename, host_statfs->f_fstypename, + sizeof(target_statfs->f_fstypename)); + strncpy(target_statfs->f_mntfromname, host_statfs->f_mntfromname, + sizeof(target_statfs->f_mntfromname)); + strncpy(target_statfs->f_mntonname, host_statfs->f_mntonname, + sizeof(target_statfs->f_mntonname)); + unlock_user_struct(target_statfs, target_addr, 1); + return 0; +} + +abi_long h2t_freebsd_statfs(abi_ulong target_addr, + struct statfs *host_statfs) +{ + struct target_statfs *target_statfs; + + if (!lock_user_struct(VERIFY_WRITE, target_statfs, target_addr, 0)) { + return -TARGET_EFAULT; + } + __put_user(host_statfs->f_version, &target_statfs->f_version); + __put_user(host_statfs->f_type, &target_statfs->f_type); + __put_user(host_statfs->f_flags, &target_statfs->f_flags); + __put_user(host_statfs->f_bsize, &target_statfs->f_bsize); + __put_user(host_statfs->f_iosize, &target_statfs->f_iosize); + __put_user(host_statfs->f_blocks, &target_statfs->f_blocks); + __put_user(host_statfs->f_bfree, &target_statfs->f_bfree); + __put_user(host_statfs->f_bavail, &target_statfs->f_bavail); + __put_user(host_statfs->f_files, &target_statfs->f_files); + __put_user(host_statfs->f_ffree, &target_statfs->f_ffree); + __put_user(host_statfs->f_syncwrites, &target_statfs->f_syncwrites); + __put_user(host_statfs->f_asyncwrites, &target_statfs->f_asyncwrites); + __put_user(host_statfs->f_syncreads, &target_statfs->f_syncreads); + __put_user(host_statfs->f_asyncreads, &target_statfs->f_asyncreads); + /* uint64_t f_spare[10]; */ + __put_user(host_statfs->f_namemax, &target_statfs->f_namemax); + __put_user(host_statfs->f_owner, &target_statfs->f_owner); + __put_user(host_statfs->f_fsid.val[0], &target_statfs->f_fsid.val[0]); + __put_user(host_statfs->f_fsid.val[1], &target_statfs->f_fsid.val[1]); + /* char f_charspace[80]; */ + strncpy(target_statfs->f_fstypename, host_statfs->f_fstypename, + sizeof(target_statfs->f_fstypename)); + strncpy(target_statfs->f_mntfromname, host_statfs->f_mntfromname, + sizeof(target_statfs->f_mntfromname)); + strncpy(target_statfs->f_mntonname, host_statfs->f_mntonname, + sizeof(target_statfs->f_mntonname)); + unlock_user_struct(target_statfs, target_addr, 1); + return 0; +} + +/* + * fcntl cmd conversion + */ +abi_long target_to_host_fcntl_cmd(int cmd) +{ + return cmd; +} + diff --git a/bsd-user/freebsd/os-stat.h b/bsd-user/freebsd/os-stat.h new file mode 100644 index 0000000..b20e270 --- /dev/null +++ b/bsd-user/freebsd/os-stat.h @@ -0,0 +1,663 @@ +/* + * stat related system call shims and definitions + * + * Copyright (c) 2013 Stacey D. Son + * + * 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/>. + */ + +#ifndef BSD_USER_FREEBSD_OS_STAT_H +#define BSD_USER_FREEBSD_OS_STAT_H + +int freebsd11_stat(const char *path, struct freebsd11_stat *stat); +__sym_compat(stat, freebsd11_stat, FBSD_1.0); +int freebsd11_lstat(const char *path, struct freebsd11_stat *stat); +__sym_compat(lstat, freebsd11_lstat, FBSD_1.0); +int freebsd11_fstat(int fd, struct freebsd11_stat *stat); +__sym_compat(fstat, freebsd11_fstat, FBSD_1.0); +int freebsd11_fstatat(int fd, const char *path, struct freebsd11_stat *stat, + int flag); +__sym_compat(fstatat, freebsd11_fstatat, FBSD_1.1); + +int freebsd11_fhstat(const fhandle_t *fhandle, struct freebsd11_stat *stat); +__sym_compat(fhstat, freebsd11_fhstat, FBSD_1.0); +int freebsd11_getfsstat(struct freebsd11_statfs *buf, long bufsize, int mode); +__sym_compat(getfsstat, freebsd11_getfsstat, FBSD_1.0); +int freebsd11_fhstatfs(const fhandle_t *fhandle, struct freebsd11_statfs * buf); +__sym_compat(fhstatfs, freebsd11_fhstatfs, FBSD_1.0); +int freebsd11_statfs(const char *path, struct freebsd11_statfs *buf); +__sym_compat(statfs, freebsd11_statfs, FBSD_1.0); +int freebsd11_fstatfs(int fd, struct freebsd11_statfs *buf); +__sym_compat(fstatfs, freebsd11_fstatfs, FBSD_1.0); + +ssize_t freebsd11_getdirentries(int fd, char *buf, size_t nbytes, off_t *basep); +__sym_compat(getdirentries, freebsd11_getdirentries, FBSD_1.0); +ssize_t freebsd11_getdents(int fd, char *buf, size_t nbytes); +__sym_compat(getdents, freebsd11_getdents, FBSD_1.0); + +/* undocumented nstat system calls */ +int freebsd11_nstat(const char *path, struct freebsd11_stat *sb); +__sym_compat(nstat, freebsd11_nstat, FBSD_1.0); +int freebsd11_nlstat(const char *path, struct freebsd11_stat *sb); +__sym_compat(nlstat, freebsd11_nlstat, FBSD_1.0); +int freebsd11_nfstat(int fd, struct freebsd11_stat *sb); +__sym_compat(nfstat, freebsd11_nfstat, FBSD_1.0); + +/* stat(2) */ +static inline abi_long do_freebsd11_stat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct freebsd11_stat st; + + LOCK_PATH(p, arg1); + ret = get_errno(freebsd11_stat(path(p), &st)); + UNLOCK_PATH(p, arg1); + if (!is_error(ret)) { + ret = h2t_freebsd11_stat(arg2, &st); + } + return ret; +} + +/* lstat(2) */ +static inline abi_long do_freebsd11_lstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct freebsd11_stat st; + + LOCK_PATH(p, arg1); + ret = get_errno(freebsd11_lstat(path(p), &st)); + UNLOCK_PATH(p, arg1); + if (!is_error(ret)) { + ret = h2t_freebsd11_stat(arg2, &st); + } + return ret; +} + +/* fstat(2) */ +static inline abi_long do_freebsd11_fstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + struct freebsd11_stat st; + + ret = get_errno(freebsd11_fstat(arg1, &st)); + if (!is_error(ret)) { + ret = h2t_freebsd11_stat(arg2, &st); + } + return ret; +} + +/* fstat(2) */ +static inline abi_long do_freebsd_fstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + struct stat st; + + ret = get_errno(fstat(arg1, &st)); + if (!is_error(ret)) { + ret = h2t_freebsd_stat(arg2, &st); + } + return ret; +} + +/* fstatat(2) */ +static inline abi_long do_freebsd11_fstatat(abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4) +{ + abi_long ret; + void *p; + struct freebsd11_stat st; + + LOCK_PATH(p, arg2); + ret = get_errno(freebsd11_fstatat(arg1, p, &st, arg4)); + UNLOCK_PATH(p, arg2); + if (!is_error(ret) && arg3) { + ret = h2t_freebsd11_stat(arg3, &st); + } + return ret; +} + +/* fstatat(2) */ +static inline abi_long do_freebsd_fstatat(abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4) +{ + abi_long ret; + void *p; + struct stat st; + + LOCK_PATH(p, arg2); + ret = get_errno(fstatat(arg1, p, &st, arg4)); + UNLOCK_PATH(p, arg2); + if (!is_error(ret) && arg3) { + ret = h2t_freebsd_stat(arg3, &st); + } + return ret; +} + +/* undocummented nstat(char *path, struct nstat *ub) syscall */ +static abi_long do_freebsd11_nstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct freebsd11_stat st; + + LOCK_PATH(p, arg1); + ret = get_errno(freebsd11_nstat(path(p), &st)); + UNLOCK_PATH(p, arg1); + if (!is_error(ret)) { + ret = h2t_freebsd11_nstat(arg2, &st); + } + return ret; +} + +/* undocummented nfstat(int fd, struct nstat *sb) syscall */ +static abi_long do_freebsd11_nfstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + struct freebsd11_stat st; + + ret = get_errno(freebsd11_nfstat(arg1, &st)); + if (!is_error(ret)) { + ret = h2t_freebsd11_nstat(arg2, &st); + } + return ret; +} + +/* undocummented nlstat(char *path, struct nstat *ub) syscall */ +static abi_long do_freebsd11_nlstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct freebsd11_stat st; + + LOCK_PATH(p, arg1); + ret = get_errno(freebsd11_nlstat(path(p), &st)); + UNLOCK_PATH(p, arg1); + if (!is_error(ret)) { + ret = h2t_freebsd11_nstat(arg2, &st); + } + return ret; +} + +/* getfh(2) */ +static abi_long do_freebsd_getfh(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + fhandle_t host_fh; + + LOCK_PATH(p, arg1); + ret = get_errno(getfh(path(p), &host_fh)); + UNLOCK_PATH(p, arg1); + if (is_error(ret)) { + return ret; + } + return h2t_freebsd_fhandle(arg2, &host_fh); +} + +/* lgetfh(2) */ +static inline abi_long do_freebsd_lgetfh(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + fhandle_t host_fh; + + LOCK_PATH(p, arg1); + ret = get_errno(lgetfh(path(p), &host_fh)); + UNLOCK_PATH(p, arg1); + if (is_error(ret)) { + return ret; + } + return h2t_freebsd_fhandle(arg2, &host_fh); +} + +/* fhopen(2) */ +static inline abi_long do_freebsd_fhopen(abi_long arg1, abi_long arg2) +{ + abi_long ret; + fhandle_t host_fh; + + ret = t2h_freebsd_fhandle(&host_fh, arg1); + if (is_error(ret)) { + return ret; + } + + return get_errno(fhopen(&host_fh, arg2)); +} + +/* fhstat(2) */ +static inline abi_long do_freebsd11_fhstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + fhandle_t host_fh; + struct freebsd11_stat host_sb; + + ret = t2h_freebsd_fhandle(&host_fh, arg1); + if (is_error(ret)) { + return ret; + } + ret = get_errno(freebsd11_fhstat(&host_fh, &host_sb)); + if (is_error(ret)) { + return ret; + } + return h2t_freebsd11_stat(arg2, &host_sb); +} + +/* fhstat(2) */ +static inline abi_long do_freebsd_fhstat(abi_long arg1, abi_long arg2) +{ + abi_long ret; + fhandle_t host_fh; + struct stat host_sb; + + ret = t2h_freebsd_fhandle(&host_fh, arg1); + if (is_error(ret)) { + return ret; + } + ret = get_errno(fhstat(&host_fh, &host_sb)); + if (is_error(ret)) { + return ret; + } + return h2t_freebsd_stat(arg2, &host_sb); +} + +/* fhstatfs(2) */ +static inline abi_long do_freebsd11_fhstatfs(abi_ulong target_fhp_addr, + abi_ulong target_stfs_addr) +{ + abi_long ret; + fhandle_t host_fh; + struct freebsd11_statfs host_stfs; + + ret = t2h_freebsd_fhandle(&host_fh, target_fhp_addr); + if (is_error(ret)) { + return ret; + } + ret = get_errno(freebsd11_fhstatfs(&host_fh, &host_stfs)); + if (is_error(ret)) { + return ret; + } + return h2t_freebsd11_statfs(target_stfs_addr, &host_stfs); +} + +/* fhstatfs(2) */ +static inline abi_long do_freebsd_fhstatfs(abi_ulong target_fhp_addr, + abi_ulong target_stfs_addr) +{ + abi_long ret; + fhandle_t host_fh; + struct statfs host_stfs; + + ret = t2h_freebsd_fhandle(&host_fh, target_fhp_addr); + if (is_error(ret)) { + return ret; + } + ret = get_errno(fhstatfs(&host_fh, &host_stfs)); + if (is_error(ret)) { + return ret; + } + return h2t_freebsd_statfs(target_stfs_addr, &host_stfs); +} + +/* statfs(2) */ +static inline abi_long do_freebsd11_statfs(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct freebsd11_statfs host_stfs; + + LOCK_PATH(p, arg1); + ret = get_errno(freebsd11_statfs(path(p), &host_stfs)); + UNLOCK_PATH(p, arg1); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd11_statfs(arg2, &host_stfs); +} + +/* statfs(2) */ +static inline abi_long do_freebsd_statfs(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct statfs host_stfs; + + LOCK_PATH(p, arg1); + ret = get_errno(statfs(path(p), &host_stfs)); + UNLOCK_PATH(p, arg1); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd_statfs(arg2, &host_stfs); +} + +/* fstatfs(2) */ +static inline abi_long do_freebsd11_fstatfs(abi_long fd, abi_ulong target_addr) +{ + abi_long ret; + struct freebsd11_statfs host_stfs; + + ret = get_errno(freebsd11_fstatfs(fd, &host_stfs)); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd11_statfs(target_addr, &host_stfs); +} + +/* fstatfs(2) */ +static inline abi_long do_freebsd_fstatfs(abi_long fd, abi_ulong target_addr) +{ + abi_long ret; + struct statfs host_stfs; + + ret = get_errno(fstatfs(fd, &host_stfs)); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd_statfs(target_addr, &host_stfs); +} + +/* getfsstat(2) */ +static inline abi_long do_freebsd11_getfsstat(abi_ulong target_addr, + abi_long bufsize, abi_long flags) +{ + abi_long ret; + struct freebsd11_statfs *host_stfs; + int count; + long host_bufsize; + + count = bufsize / sizeof(struct target_freebsd11_statfs); + + /* if user buffer is NULL then return number of mounted FS's */ + if (target_addr == 0 || count == 0) { + return get_errno(freebsd11_getfsstat(NULL, 0, flags)); + } + + /* XXX check count to be reasonable */ + host_bufsize = sizeof(struct freebsd11_statfs) * count; + host_stfs = alloca(host_bufsize); + if (!host_stfs) { + return -TARGET_EINVAL; + } + + ret = count = get_errno(freebsd11_getfsstat(host_stfs, host_bufsize, flags)); + if (is_error(ret)) { + return ret; + } + + while (count--) { + if (h2t_freebsd11_statfs((target_addr + + (count * sizeof(struct target_freebsd11_statfs))), + &host_stfs[count])) { + return -TARGET_EFAULT; + } + } + return ret; +} + +/* getfsstat(2) */ +static inline abi_long do_freebsd_getfsstat(abi_ulong target_addr, + abi_long bufsize, abi_long flags) +{ + abi_long ret; + struct statfs *host_stfs; + int count; + long host_bufsize; + + count = bufsize / sizeof(struct target_statfs); + + /* if user buffer is NULL then return number of mounted FS's */ + if (target_addr == 0 || count == 0) { + return get_errno(freebsd11_getfsstat(NULL, 0, flags)); + } + + /* XXX check count to be reasonable */ + host_bufsize = sizeof(struct statfs) * count; + host_stfs = alloca(host_bufsize); + if (!host_stfs) { + return -TARGET_EINVAL; + } + + ret = count = get_errno(getfsstat(host_stfs, host_bufsize, flags)); + if (is_error(ret)) { + return ret; + } + + while (count--) { + if (h2t_freebsd_statfs((target_addr + + (count * sizeof(struct target_statfs))), + &host_stfs[count])) { + return -TARGET_EFAULT; + } + } + return ret; +} + +/* getdents(2) */ +static inline abi_long do_freebsd11_getdents(abi_long arg1, + abi_ulong arg2, abi_long nbytes) +{ + abi_long ret; + struct freebsd11_dirent *dirp; + + dirp = lock_user(VERIFY_WRITE, arg2, nbytes, 0); + if (dirp == NULL) { + return -TARGET_EFAULT; + } + ret = get_errno(freebsd11_getdents(arg1, (char *)dirp, nbytes)); + if (!is_error(ret)) { + struct freebsd11_dirent *de; + int len = ret; + int reclen; + + de = dirp; + while (len > 0) { + reclen = de->d_reclen; + if (reclen > len) { + return -TARGET_EFAULT; + } + de->d_reclen = tswap16(reclen); + de->d_fileno = tswap32(de->d_fileno); + len -= reclen; + } + } + return ret; +} + +/* getdirecentries(2) */ +static inline abi_long do_freebsd11_getdirentries(abi_long arg1, + abi_ulong arg2, abi_long nbytes, abi_ulong arg4) +{ + abi_long ret; + struct freebsd11_dirent *dirp; + long basep; + + dirp = lock_user(VERIFY_WRITE, arg2, nbytes, 0); + if (dirp == NULL) { + return -TARGET_EFAULT; + } + ret = get_errno(freebsd11_getdirentries(arg1, (char *)dirp, nbytes, &basep)); + if (!is_error(ret)) { + struct freebsd11_dirent *de; + int len = ret; + int reclen; + + de = dirp; + while (len > 0) { + reclen = de->d_reclen; + if (reclen > len) { + return -TARGET_EFAULT; + } + de->d_reclen = tswap16(reclen); + de->d_fileno = tswap32(de->d_fileno); + len -= reclen; + de = (struct freebsd11_dirent *)((void *)de + reclen); + } + } + unlock_user(dirp, arg2, ret); + if (arg4) { + if (put_user(basep, arg4, abi_ulong)) { + return -TARGET_EFAULT; + } + } + return ret; +} + +/* getdirecentries(2) */ +static inline abi_long do_freebsd_getdirentries(abi_long arg1, + abi_ulong arg2, abi_long nbytes, abi_ulong arg4) +{ + abi_long ret; + struct dirent *dirp; + long basep; + + dirp = lock_user(VERIFY_WRITE, arg2, nbytes, 0); + if (dirp == NULL) { + return -TARGET_EFAULT; + } + ret = get_errno(getdirentries(arg1, (char *)dirp, nbytes, &basep)); + if (!is_error(ret)) { + struct dirent *de; + int len = ret; + int reclen; + + de = dirp; + while (len > 0) { + reclen = de->d_reclen; + if (reclen > len) { + return -TARGET_EFAULT; + } + de->d_fileno = tswap64(de->d_fileno); + de->d_off = tswap64(de->d_off); + de->d_reclen = tswap16(de->d_reclen); + de->d_namlen = tswap16(de->d_namlen); + len -= reclen; + de = (struct dirent *)((void *)de + reclen); + } + } + unlock_user(dirp, arg2, ret); + if (arg4) { + if (put_user(basep, arg4, abi_ulong)) { + return -TARGET_EFAULT; + } + } + return ret; +} + +/* fcntl(2) */ +static inline abi_long do_freebsd_fcntl(abi_long arg1, abi_long arg2, + abi_ulong arg3) +{ + abi_long ret; + int host_cmd; + struct flock fl; + struct target_freebsd_flock *target_fl; + + host_cmd = target_to_host_fcntl_cmd(arg2); + if (host_cmd < 0) { + return host_cmd; + } + switch (arg2) { + case TARGET_F_GETLK: + if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) { + return -TARGET_EFAULT; + } + __get_user(fl.l_type, &target_fl->l_type); + __get_user(fl.l_whence, &target_fl->l_whence); + __get_user(fl.l_start, &target_fl->l_start); + __get_user(fl.l_len, &target_fl->l_len); + __get_user(fl.l_pid, &target_fl->l_pid); + __get_user(fl.l_sysid, &target_fl->l_sysid); + unlock_user_struct(target_fl, arg3, 0); + ret = get_errno(safe_fcntl(arg1, host_cmd, &fl)); + if (!is_error(ret)) { + if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) { + return -TARGET_EFAULT; + } + __put_user(fl.l_type, &target_fl->l_type); + __put_user(fl.l_whence, &target_fl->l_whence); + __put_user(fl.l_start, &target_fl->l_start); + __put_user(fl.l_len, &target_fl->l_len); + __put_user(fl.l_pid, &target_fl->l_pid); + __put_user(fl.l_sysid, &target_fl->l_sysid); + unlock_user_struct(target_fl, arg3, 1); + } + break; + + case TARGET_F_SETLK: + case TARGET_F_SETLKW: + if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) { + return -TARGET_EFAULT; + } + __get_user(fl.l_type, &target_fl->l_type); + __get_user(fl.l_whence, &target_fl->l_whence); + __get_user(fl.l_start, &target_fl->l_start); + __get_user(fl.l_len, &target_fl->l_len); + __get_user(fl.l_pid, &target_fl->l_pid); + __get_user(fl.l_sysid, &target_fl->l_sysid); + unlock_user_struct(target_fl, arg3, 0); + ret = get_errno(safe_fcntl(arg1, host_cmd, &fl)); + break; + + case TARGET_F_DUPFD: + case TARGET_F_DUP2FD: + case TARGET_F_GETOWN: + case TARGET_F_SETOWN: + case TARGET_F_GETFD: + case TARGET_F_SETFD: + case TARGET_F_GETFL: + case TARGET_F_SETFL: + case TARGET_F_READAHEAD: + case TARGET_F_RDAHEAD: + case TARGET_F_ADD_SEALS: + case TARGET_F_GET_SEALS: + default: + ret = get_errno(safe_fcntl(arg1, host_cmd, arg3)); + break; + } + return ret; +} + +#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300080 +extern int __realpathat(int fd, const char *path, char *buf, size_t size, + int flags); +/* https://svnweb.freebsd.org/base?view=revision&revision=358172 */ +/* no man page */ +static inline abi_long do_freebsd_realpathat(abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + abi_long ret; + void *p, *b; + + LOCK_PATH(p, arg2); + b = lock_user(VERIFY_WRITE, arg3, arg4, 0); + if (b == NULL) { + UNLOCK_PATH(p, arg2); + return -TARGET_EFAULT; + } + + ret = get_errno(__realpathat(arg1, p, b, arg4, arg5)); + UNLOCK_PATH(p, arg2); + unlock_user(b, arg3, ret); + + return ret; +} +#endif + +#endif /* BSD_USER_FREEBSD_OS_STAT_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index de36c4b..fa60df5 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -17,17 +17,6 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses/>. */ - -/* - * We need the FreeBSD "legacy" definitions. Rust needs the FreeBSD 11 system - * calls since it doesn't use libc at all, so we have to emulate that despite - * FreeBSD 11 being EOL'd. - */ -#define _WANT_FREEBSD11_STAT -#define _WANT_FREEBSD11_STATFS -#define _WANT_FREEBSD11_DIRENT -#define _WANT_KERNEL_ERRNO -#define _WANT_SEMUN #include "qemu/osdep.h" #include "qemu/cutils.h" #include "qemu/path.h" @@ -47,6 +36,9 @@ #include "bsd-file.h" #include "bsd-proc.h" +/* *BSD dependent syscall shims */ +#include "os-stat.h" + /* I/O */ safe_syscall3(int, open, const char *, path, int, flags, mode_t, mode); safe_syscall4(int, openat, int, fd, const char *, path, int, flags, mode_t, @@ -248,6 +240,7 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, case TARGET_FREEBSD_NR_preadv: /* preadv(2) */ ret = do_bsd_preadv(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6); + break; case TARGET_FREEBSD_NR_write: /* write(2) */ ret = do_bsd_write(arg1, arg2, arg3); @@ -494,6 +487,113 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, break; /* + * stat system calls + */ + case TARGET_FREEBSD_NR_freebsd11_stat: /* stat(2) */ + ret = do_freebsd11_stat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_lstat: /* lstat(2) */ + ret = do_freebsd11_lstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_fstat: /* fstat(2) */ + ret = do_freebsd11_fstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_fstat: /* fstat(2) */ + ret = do_freebsd_fstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_fstatat: /* fstatat(2) */ + ret = do_freebsd11_fstatat(arg1, arg2, arg3, arg4); + break; + + case TARGET_FREEBSD_NR_fstatat: /* fstatat(2) */ + ret = do_freebsd_fstatat(arg1, arg2, arg3, arg4); + break; + + case TARGET_FREEBSD_NR_freebsd11_nstat: /* undocumented */ + ret = do_freebsd11_nstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_nfstat: /* undocumented */ + ret = do_freebsd11_nfstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_nlstat: /* undocumented */ + ret = do_freebsd11_nlstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_getfh: /* getfh(2) */ + ret = do_freebsd_getfh(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_lgetfh: /* lgetfh(2) */ + ret = do_freebsd_lgetfh(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_fhopen: /* fhopen(2) */ + ret = do_freebsd_fhopen(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_fhstat: /* fhstat(2) */ + ret = do_freebsd11_fhstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_fhstat: /* fhstat(2) */ + ret = do_freebsd_fhstat(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_fhstatfs: /* fhstatfs(2) */ + ret = do_freebsd11_fhstatfs(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_fhstatfs: /* fhstatfs(2) */ + ret = do_freebsd_fhstatfs(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_statfs: /* statfs(2) */ + ret = do_freebsd11_statfs(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_statfs: /* statfs(2) */ + ret = do_freebsd_statfs(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_fstatfs: /* fstatfs(2) */ + ret = do_freebsd11_fstatfs(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_fstatfs: /* fstatfs(2) */ + ret = do_freebsd_fstatfs(arg1, arg2); + break; + + case TARGET_FREEBSD_NR_freebsd11_getfsstat: /* getfsstat(2) */ + ret = do_freebsd11_getfsstat(arg1, arg2, arg3); + break; + + case TARGET_FREEBSD_NR_getfsstat: /* getfsstat(2) */ + ret = do_freebsd_getfsstat(arg1, arg2, arg3); + break; + + case TARGET_FREEBSD_NR_freebsd11_getdents: /* getdents(2) */ + ret = do_freebsd11_getdents(arg1, arg2, arg3); + break; + + case TARGET_FREEBSD_NR_getdirentries: /* getdirentries(2) */ + ret = do_freebsd_getdirentries(arg1, arg2, arg3, arg4); + break; + + case TARGET_FREEBSD_NR_freebsd11_getdirentries: /* getdirentries(2) */ + ret = do_freebsd11_getdirentries(arg1, arg2, arg3, arg4); + break; + case TARGET_FREEBSD_NR_fcntl: /* fcntl(2) */ + ret = do_freebsd_fcntl(arg1, arg2, arg3); + break; + + + /* * sys{ctl, arch, call} */ case TARGET_FREEBSD_NR___sysctl: /* sysctl(3) */ diff --git a/bsd-user/freebsd/qemu-os.h b/bsd-user/freebsd/qemu-os.h new file mode 100644 index 0000000..12adc50 --- /dev/null +++ b/bsd-user/freebsd/qemu-os.h @@ -0,0 +1,50 @@ +/* + * FreeBSD conversion extern declarations + * + * Copyright (c) 2013 Stacey D. Son + * + * 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/>. + */ + +#ifndef QEMU_OS_H +#define QEMU_OS_H + +/* qemu/osdep.h pulls in the rest */ + +#include <sys/acl.h> +#include <sys/mount.h> +#include <sys/timex.h> +#include <sys/rtprio.h> +#include <sys/select.h> +#include <sys/socket.h> +#include <netinet/in.h> + +struct freebsd11_stat; + +/* os-stat.c */ +abi_long h2t_freebsd11_stat(abi_ulong target_addr, + struct freebsd11_stat *host_st); +abi_long h2t_freebsd11_nstat(abi_ulong target_addr, + struct freebsd11_stat *host_st); +abi_long t2h_freebsd_fhandle(fhandle_t *host_fh, abi_ulong target_addr); +abi_long h2t_freebsd_fhandle(abi_ulong target_addr, fhandle_t *host_fh); +abi_long h2t_freebsd11_statfs(abi_ulong target_addr, + struct freebsd11_statfs *host_statfs); +abi_long target_to_host_fcntl_cmd(int cmd); +abi_long h2t_freebsd_stat(abi_ulong target_addr, + struct stat *host_st); +abi_long h2t_freebsd_statfs(abi_ulong target_addr, + struct statfs *host_statfs); + +#endif /* QEMU_OS_H */ diff --git a/bsd-user/i386/target_arch_elf.h b/bsd-user/i386/target_arch_elf.h index cbcd1f0..4ac27b0 100644 --- a/bsd-user/i386/target_arch_elf.h +++ b/bsd-user/i386/target_arch_elf.h @@ -20,7 +20,6 @@ #ifndef TARGET_ARCH_ELF_H #define TARGET_ARCH_ELF_H -#define ELF_START_MMAP 0x80000000 #define ELF_ET_DYN_LOAD_ADDR 0x01001000 #define elf_check_arch(x) (((x) == EM_386) || ((x) == EM_486)) diff --git a/bsd-user/main.c b/bsd-user/main.c index 381bb18..f913cb5 100644 --- a/bsd-user/main.c +++ b/bsd-user/main.c @@ -553,8 +553,6 @@ int main(int argc, char **argv) fprintf(f, "page layout changed following binary load\n"); page_dump(f); - fprintf(f, "start_brk 0x" TARGET_ABI_FMT_lx "\n", - info->start_brk); fprintf(f, "end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); fprintf(f, "start_code 0x" TARGET_ABI_FMT_lx "\n", diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h index 8f2d6a3..4cfd5c6 100644 --- a/bsd-user/qemu.h +++ b/bsd-user/qemu.h @@ -38,6 +38,7 @@ extern char **environ; #include "exec/gdbstub.h" #include "qemu/clang-tsa.h" +#include "qemu-os.h" /* * This struct is used to hold certain information about the image. Basically, * it replicates in user space what would be certain task_struct fields in the @@ -50,10 +51,7 @@ struct image_info { abi_ulong end_code; abi_ulong start_data; abi_ulong end_data; - abi_ulong start_brk; abi_ulong brk; - abi_ulong start_mmap; - abi_ulong mmap; abi_ulong rss; abi_ulong start_stack; abi_ulong entry; @@ -275,50 +273,37 @@ static inline bool access_ok(int type, abi_ulong addr, abi_ulong size) * These are usually used to access struct data members once the struct has been * locked - usually with lock_user_struct(). */ -#define __put_user(x, hptr)\ -({\ - int size = sizeof(*hptr);\ - switch (size) {\ - case 1:\ - *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\ - break;\ - case 2:\ - *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\ - break;\ - case 4:\ - *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\ - break;\ - case 8:\ - *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\ - break;\ - default:\ - abort();\ - } \ - 0;\ -}) +#define __put_user_e(x, hptr, e) \ + do { \ + PRAGMA_DISABLE_PACKED_WARNING; \ + (__builtin_choose_expr(sizeof(*(hptr)) == 1, stb_p, \ + __builtin_choose_expr(sizeof(*(hptr)) == 2, stw_##e##_p, \ + __builtin_choose_expr(sizeof(*(hptr)) == 4, stl_##e##_p, \ + __builtin_choose_expr(sizeof(*(hptr)) == 8, stq_##e##_p, abort)))) \ + ((hptr), (x)), (void)0); \ + PRAGMA_REENABLE_PACKED_WARNING; \ + } while (0) + +#define __get_user_e(x, hptr, e) \ + do { \ + PRAGMA_DISABLE_PACKED_WARNING; \ + ((x) = (typeof(*hptr))( \ + __builtin_choose_expr(sizeof(*(hptr)) == 1, ldub_p, \ + __builtin_choose_expr(sizeof(*(hptr)) == 2, lduw_##e##_p, \ + __builtin_choose_expr(sizeof(*(hptr)) == 4, ldl_##e##_p, \ + __builtin_choose_expr(sizeof(*(hptr)) == 8, ldq_##e##_p, abort)))) \ + (hptr)), (void)0); \ + PRAGMA_REENABLE_PACKED_WARNING; \ + } while (0) -#define __get_user(x, hptr) \ -({\ - int size = sizeof(*hptr);\ - switch (size) {\ - case 1:\ - x = (typeof(*hptr))*(uint8_t *)(hptr);\ - break;\ - case 2:\ - x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\ - break;\ - case 4:\ - x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\ - break;\ - case 8:\ - x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\ - break;\ - default:\ - x = 0;\ - abort();\ - } \ - 0;\ -}) + +#if TARGET_BIG_ENDIAN +# define __put_user(x, hptr) __put_user_e(x, hptr, be) +# define __get_user(x, hptr) __get_user_e(x, hptr, be) +#else +# define __put_user(x, hptr) __put_user_e(x, hptr, le) +# define __get_user(x, hptr) __get_user_e(x, hptr, le) +#endif /* * put_user()/get_user() take a guest address and check access @@ -331,10 +316,10 @@ static inline bool access_ok(int type, abi_ulong addr, abi_ulong size) ({ \ abi_ulong __gaddr = (gaddr); \ target_type *__hptr; \ - abi_long __ret; \ + abi_long __ret = 0; \ __hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0); \ if (__hptr) { \ - __ret = __put_user((x), __hptr); \ + __put_user((x), __hptr); \ unlock_user(__hptr, __gaddr, sizeof(target_type)); \ } else \ __ret = -TARGET_EFAULT; \ @@ -345,10 +330,10 @@ static inline bool access_ok(int type, abi_ulong addr, abi_ulong size) ({ \ abi_ulong __gaddr = (gaddr); \ target_type *__hptr; \ - abi_long __ret; \ + abi_long __ret = 0; \ __hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1); \ if (__hptr) { \ - __ret = __get_user((x), __hptr); \ + __get_user((x), __hptr); \ unlock_user(__hptr, __gaddr, 0); \ } else { \ (x) = 0; \ diff --git a/bsd-user/signal.c b/bsd-user/signal.c index f4e078e..4db85a3 100644 --- a/bsd-user/signal.c +++ b/bsd-user/signal.c @@ -787,10 +787,7 @@ static int reset_signal_mask(target_ucontext_t *ucontext) TaskState *ts = (TaskState *)thread_cpu->opaque; for (i = 0; i < TARGET_NSIG_WORDS; i++) { - if (__get_user(target_set.__bits[i], - &ucontext->uc_sigmask.__bits[i])) { - return -TARGET_EFAULT; - } + __get_user(target_set.__bits[i], &ucontext->uc_sigmask.__bits[i]); } target_to_host_sigset_internal(&blocked, &target_set); ts->signal_mask = blocked; diff --git a/bsd-user/syscall_defs.h b/bsd-user/syscall_defs.h index aedfbf2..9c90616 100644 --- a/bsd-user/syscall_defs.h +++ b/bsd-user/syscall_defs.h @@ -45,9 +45,9 @@ * */ #if (!defined(TARGET_I386)) -typedef int64_t target_freebsd_time_t; +typedef int64_t target_time_t; #else -typedef int32_t target_freebsd_time_t; +typedef int32_t target_time_t; #endif struct target_iovec { @@ -102,7 +102,7 @@ typedef abi_long target_freebsd_suseconds_t; /* compare to sys/timespec.h */ struct target_freebsd_timespec { - target_freebsd_time_t tv_sec; /* seconds */ + target_time_t tv_sec; /* seconds */ abi_long tv_nsec; /* and nanoseconds */ #if !defined(TARGET_I386) && TARGET_ABI_BITS == 32 abi_long _pad; @@ -120,7 +120,7 @@ struct target_freebsd__umtx_time { }; struct target_freebsd_timeval { - target_freebsd_time_t tv_sec; /* seconds */ + target_time_t tv_sec; /* seconds */ target_freebsd_suseconds_t tv_usec;/* and microseconds */ #if !defined(TARGET_I386) && TARGET_ABI_BITS == 32 abi_long _pad; @@ -179,6 +179,217 @@ struct target_freebsd__wrusage { struct target_freebsd_rusage wru_children; }; +/* + * sys/stat.h + */ +struct target_freebsd11_stat { + uint32_t st_dev; /* inode's device */ + uint32_t st_ino; /* inode's number */ + int16_t st_mode; /* inode protection mode */ + int16_t st_nlink; /* number of hard links */ + uint32_t st_uid; /* user ID of the file's owner */ + uint32_t st_gid; /* group ID of the file's group */ + uint32_t st_rdev; /* device type */ + struct target_freebsd_timespec st_atim; /* time last accessed */ + struct target_freebsd_timespec st_mtim; /* time last data modification */ + struct target_freebsd_timespec st_ctim; /* time last file status change */ + int64_t st_size; /* file size, in bytes */ + int64_t st_blocks; /* blocks allocated for file */ + uint32_t st_blksize; /* optimal blocksize for I/O */ + uint32_t st_flags; /* user defined flags for file */ + uint32_t st_gen; /* file generation number */ + int32_t st_lspare; + struct target_freebsd_timespec st_birthtim; /* time of file creation */ + /* + * Explicitly pad st_birthtim to 16 bytes so that the size of + * struct stat is backwards compatible. We use bitfields instead + * of an array of chars so that this doesn't require a C99 compiler + * to compile if the size of the padding is 0. We use 2 bitfields + * to cover up to 64 bits on 32-bit machines. We assume that + * CHAR_BIT is 8... + */ + unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec)); + unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec)); +} __packed; + +#if defined(__i386__) +#define TARGET_HAS_STAT_TIME_T_EXT 1 +#endif + +struct target_stat { + uint64_t st_dev; /* inode's device */ + uint64_t st_ino; /* inode's number */ + uint64_t st_nlink; /* number of hard links */ + int16_t st_mode; /* inode protection mode */ + int16_t st_padding0; + uint32_t st_uid; /* user ID of the file's owner */ + uint32_t st_gid; /* group ID of the file's group */ + int32_t st_padding1; + uint64_t st_rdev; /* device type */ +#ifdef TARGET_HAS_STAT_TIME_T_EXT + int32_t st_atim_ext; +#endif + struct target_freebsd_timespec st_atim; /* time of last access */ +#ifdef TARGET_HAS_STAT_TIME_T_EXT + int32_t st_mtim_ext; +#endif + struct target_freebsd_timespec st_mtim; /* time of last data modification */ +#ifdef TARGET_HAS_STAT_TIME_T_EXT + int32_t st_ctim_ext; +#endif + struct target_freebsd_timespec st_ctim;/* time of last file status change */ +#ifdef TARGET_HAS_STAT_TIME_T_EXT + int32_t st_btim_ext; +#endif + struct target_freebsd_timespec st_birthtim; /* time of file creation */ + int64_t st_size; /* file size, in bytes */ + int64_t st_blocks; /* blocks allocated for file */ + uint32_t st_blksize; /* optimal blocksize for I/O */ + uint32_t st_flags; /* user defined flags for file */ + uint64_t st_gen; /* file generation number */ + uint64_t st_spare[10]; +}; + + +/* struct nstat is the same as stat above but without the st_lspare field */ +struct target_freebsd11_nstat { + uint32_t st_dev; /* inode's device */ + uint32_t st_ino; /* inode's number */ + int16_t st_mode; /* inode protection mode */ + int16_t st_nlink; /* number of hard links */ + uint32_t st_uid; /* user ID of the file's owner */ + uint32_t st_gid; /* group ID of the file's group */ + uint32_t st_rdev; /* device type */ + struct target_freebsd_timespec st_atim; /* time last accessed */ + struct target_freebsd_timespec st_mtim; /* time last data modification */ + struct target_freebsd_timespec st_ctim; /* time last file status change */ + int64_t st_size; /* file size, in bytes */ + int64_t st_blocks; /* blocks allocated for file */ + uint32_t st_blksize; /* optimal blocksize for I/O */ + uint32_t st_flags; /* user defined flags for file */ + uint32_t st_gen; /* file generation number */ + struct target_freebsd_timespec st_birthtim; /* time of file creation */ + /* + * Explicitly pad st_birthtim to 16 bytes so that the size of + * struct stat is backwards compatible. We use bitfields instead + * of an array of chars so that this doesn't require a C99 compiler + * to compile if the size of the padding is 0. We use 2 bitfields + * to cover up to 64 bits on 32-bit machines. We assume that + * CHAR_BIT is 8... + */ + unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec)); + unsigned int:(8 / 2) * (16 - (int)sizeof(struct target_freebsd_timespec)); +} __packed; + +/* + * sys/mount.h + */ + +/* filesystem id type */ +typedef struct target_freebsd_fsid { int32_t val[2]; } target_freebsd_fsid_t; + +/* filesystem statistics */ +struct target_freebsd11_statfs { + uint32_t f_version; /* structure version number */ + uint32_t f_type; /* type of filesystem */ + uint64_t f_flags; /* copy of mount exported flags */ + uint64_t f_bsize; /* filesystem fragment size */ + uint64_t f_iosize; /* optimal transfer block size */ + uint64_t f_blocks; /* total data blocks in filesystem */ + uint64_t f_bfree; /* free blocks in filesystem */ + int64_t f_bavail; /* free blocks avail to non-superuser */ + uint64_t f_files; /* total file nodes in filesystem */ + int64_t f_ffree; /* free nodes avail to non-superuser */ + uint64_t f_syncwrites; /* count of sync writes since mount */ + uint64_t f_asyncwrites; /* count of async writes since mount */ + uint64_t f_syncreads; /* count of sync reads since mount */ + uint64_t f_asyncreads; /* count of async reads since mount */ + uint64_t f_spare[10]; /* unused spare */ + uint32_t f_namemax; /* maximum filename length */ + uint32_t f_owner; /* user that mounted the filesystem */ + target_freebsd_fsid_t f_fsid; /* filesystem id */ + char f_charspare[80]; /* spare string space */ + char f_fstypename[16]; /* filesys type name */ + char f_mntfromname[88]; /* mount filesystem */ + char f_mntonname[88]; /* dir on which mounted*/ +}; + +struct target_statfs { + uint32_t f_version; /* structure version number */ + uint32_t f_type; /* type of filesystem */ + uint64_t f_flags; /* copy of mount exported flags */ + uint64_t f_bsize; /* filesystem fragment size */ + uint64_t f_iosize; /* optimal transfer block size */ + uint64_t f_blocks; /* total data blocks in filesystem */ + uint64_t f_bfree; /* free blocks in filesystem */ + int64_t f_bavail; /* free blocks avail to non-superuser */ + uint64_t f_files; /* total file nodes in filesystem */ + int64_t f_ffree; /* free nodes avail to non-superuser */ + uint64_t f_syncwrites; /* count of sync writes since mount */ + uint64_t f_asyncwrites; /* count of async writes since mount */ + uint64_t f_syncreads; /* count of sync reads since mount */ + uint64_t f_asyncreads; /* count of async reads since mount */ + uint64_t f_spare[10]; /* unused spare */ + uint32_t f_namemax; /* maximum filename length */ + uint32_t f_owner; /* user that mounted the filesystem */ + target_freebsd_fsid_t f_fsid; /* filesystem id */ + char f_charspare[80]; /* spare string space */ + char f_fstypename[16]; /* filesystem type name */ + char f_mntfromname[1024]; /* mounted filesystem */ + char f_mntonname[1024]; /* directory on which mounted */ +}; + +/* File identifier. These are unique per filesystem on a single machine. */ +#define TARGET_MAXFIDSZ 16 + +struct target_freebsd_fid { + uint16_t fid_len; /* len of data in bytes */ + uint16_t fid_data0; /* force longword align */ + char fid_data[TARGET_MAXFIDSZ]; /* data (variable len) */ +}; + +/* Generic file handle */ +struct target_freebsd_fhandle { + target_freebsd_fsid_t fh_fsid; /* Filesystem id of mount point */ + struct target_freebsd_fid fh_fid; /* Filesys specific id */ +}; +typedef struct target_freebsd_fhandle target_freebsd_fhandle_t; + +/* + * sys/fcntl.h + */ +#define TARGET_F_DUPFD 0 +#define TARGET_F_GETFD 1 +#define TARGET_F_SETFD 2 +#define TARGET_F_GETFL 3 +#define TARGET_F_SETFL 4 +#define TARGET_F_GETOWN 5 +#define TARGET_F_SETOWN 6 +#define TARGET_F_OGETLK 7 +#define TARGET_F_OSETLK 8 +#define TARGET_F_OSETLKW 9 +#define TARGET_F_DUP2FD 10 +#define TARGET_F_GETLK 11 +#define TARGET_F_SETLK 12 +#define TARGET_F_SETLKW 13 +#define TARGET_F_SETLK_REMOTE 14 +#define TARGET_F_READAHEAD 15 +#define TARGET_F_RDAHEAD 16 +#define TARGET_F_DUPFD_CLOEXEC 17 +#define TARGET_F_DUP2FD_CLOEXEC 18 +/* FreeBSD-specific */ +#define TARGET_F_ADD_SEALS 19 +#define TARGET_F_GET_SEALS 20 + +struct target_freebsd_flock { + int64_t l_start; + int64_t l_len; + int32_t l_pid; + int16_t l_type; + int16_t l_whence; + int32_t l_sysid; +} QEMU_PACKED; + #define safe_syscall0(type, name) \ type safe_##name(void) \ { \ @@ -226,6 +437,8 @@ type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ return safe_syscall(SYS_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ } +#define safe_fcntl(...) safe_syscall(SYS_fcntl, __VA_ARGS__) + /* So far all target and host bitmasks are the same */ #undef target_to_host_bitmask #define target_to_host_bitmask(x, tbl) (x) diff --git a/bsd-user/x86_64/target_arch_elf.h b/bsd-user/x86_64/target_arch_elf.h index b244711..e51c2fa 100644 --- a/bsd-user/x86_64/target_arch_elf.h +++ b/bsd-user/x86_64/target_arch_elf.h @@ -20,7 +20,6 @@ #ifndef TARGET_ARCH_ELF_H #define TARGET_ARCH_ELF_H -#define ELF_START_MMAP 0x2aaaaab000ULL #define ELF_ET_DYN_LOAD_ADDR 0x01021000 #define elf_check_arch(x) (((x) == ELF_ARCH)) diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h index a309f90..b037442 100644 --- a/include/qemu/compiler.h +++ b/include/qemu/compiler.h @@ -22,6 +22,36 @@ #define QEMU_EXTERN_C extern #endif +/* + * Tricky points: + * - Use __builtin_choose_expr to avoid type promotion from ?:, + * - Invalid sizes result in a compile time error stemming from + * the fact that abort has no parameters. + * - It's easier to use the endian-specific unaligned load/store + * functions than host-endian unaligned load/store plus tswapN. + * - The pragmas are necessary only to silence a clang false-positive + * warning: see https://bugs.llvm.org/show_bug.cgi?id=39113 . + * - We have to disable -Wpragmas warnings to avoid a complaint about + * an unknown warning type from older compilers that don't know about + * -Waddress-of-packed-member. + * - gcc has bugs in its _Pragma() support in some versions, eg + * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83256 -- so we only + * include the warning-suppression pragmas for clang + */ +#ifdef __clang__ +#define PRAGMA_DISABLE_PACKED_WARNING \ + _Pragma("GCC diagnostic push"); \ + _Pragma("GCC diagnostic ignored \"-Wpragmas\""); \ + _Pragma("GCC diagnostic ignored \"-Waddress-of-packed-member\"") + +#define PRAGMA_REENABLE_PACKED_WARNING \ + _Pragma("GCC diagnostic pop") + +#else +#define PRAGMA_DISABLE_PACKED_WARNING +#define PRAGMA_REENABLE_PACKED_WARNING +#endif + #if defined(_WIN32) && (defined(__x86_64__) || defined(__i386__)) # define QEMU_PACKED __attribute__((gcc_struct, packed)) #else diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index 21ef8f1..2cae135 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -88,6 +88,19 @@ QEMU_EXTERN_C int daemon(int, int); #define __USE_MINGW_ANSI_STDIO 1 #endif +/* + * We need the FreeBSD "legacy" definitions. Rust needs the FreeBSD 11 system + * calls since it doesn't use libc at all, so we have to emulate that despite + * FreeBSD 11 being EOL'd. + */ +#ifdef __FreeBSD__ +#define _WANT_FREEBSD11_STAT +#define _WANT_FREEBSD11_STATFS +#define _WANT_FREEBSD11_DIRENT +#define _WANT_KERNEL_ERRNO +#define _WANT_SEMUN +#endif + #include <stdarg.h> #include <stddef.h> #include <stdbool.h> |