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33 #include "config/full_system.hh"
43 #include <fcntl.h> // for host open() flags
44 #include <string.h> // for memset()
46 #include <sys/types.h>
49 #include "arch/isa_traits.hh"
50 #include "sim/syscall_emul.hh"
52 class TranslatingPort;
55 /// This class encapsulates the types, structures, constants,
56 /// functions, and syscall-number mappings specific to the Alpha Linux
57 /// syscall interface.
64 /// Basic Linux types.
65 typedef uint64_t size_t;
66 typedef uint64_t off_t;
67 typedef int64_t time_t;
68 typedef uint32_t uid_t;
69 typedef uint32_t gid_t;
73 typedef struct stat hst_stat;
74 typedef struct stat hst_stat64;
76 typedef struct stat hst_stat ;
77 typedef struct stat64 hst_stat64;
80 /// Stat buffer. Note that we can't call it 'stat' since that
81 /// gets #defined to something else on some systems.
83 uint32_t st_dev; //!< device
84 uint32_t st_ino; //!< inode
85 uint32_t st_mode; //!< mode
86 uint32_t st_nlink; //!< link count
87 uint32_t st_uid; //!< owner's user ID
88 uint32_t st_gid; //!< owner's group ID
89 uint32_t st_rdev; //!< device number
90 int32_t _pad1; //!< for alignment
91 int64_t st_size; //!< file size in bytes
92 uint64_t st_atimeX; //!< time of last access
93 uint64_t st_mtimeX; //!< time of last modification
94 uint64_t st_ctimeX; //!< time of last status change
95 uint32_t st_blksize; //!< optimal I/O block size
96 int32_t st_blocks; //!< number of blocks allocated
97 uint32_t st_flags; //!< flags
98 uint32_t st_gen; //!< unknown
116 uint64_t tgt_st_atime;
117 uint64_t st_atime_nsec;
118 uint64_t tgt_st_mtime;
119 uint64_t st_mtime_nsec;
120 uint64_t tgt_st_ctime;
121 uint64_t st_ctime_nsec;
122 int64_t ___unused[3];
125 /// Length of strings in struct utsname (plus 1 for null char).
126 static const int _SYS_NMLN = 65;
128 /// Interface struct for uname().
130 char sysname[_SYS_NMLN]; //!< System name.
131 char nodename[_SYS_NMLN]; //!< Node name.
132 char release[_SYS_NMLN]; //!< OS release.
133 char version[_SYS_NMLN]; //!< OS version.
134 char machine[_SYS_NMLN]; //!< Machine type.
137 /// Limit struct for getrlimit/setrlimit.
139 uint64_t rlim_cur; //!< soft limit
140 uint64_t rlim_max; //!< hard limit
143 /// For gettimeofday().
145 int64_t tv_sec; //!< seconds
146 int64_t tv_usec; //!< microseconds
151 uint64_t iov_base; // void *
158 struct timeval ru_utime; //!< user time used
159 struct timeval ru_stime; //!< system time used
160 int64_t ru_maxrss; //!< max rss
161 int64_t ru_ixrss; //!< integral shared memory size
162 int64_t ru_idrss; //!< integral unshared data "
163 int64_t ru_isrss; //!< integral unshared stack "
164 int64_t ru_minflt; //!< page reclaims - total vmfaults
165 int64_t ru_majflt; //!< page faults
166 int64_t ru_nswap; //!< swaps
167 int64_t ru_inblock; //!< block input operations
168 int64_t ru_oublock; //!< block output operations
169 int64_t ru_msgsnd; //!< messages sent
170 int64_t ru_msgrcv; //!< messages received
171 int64_t ru_nsignals; //!< signals received
172 int64_t ru_nvcsw; //!< voluntary context switches
173 int64_t ru_nivcsw; //!< involuntary "
176 /// Helper function to convert a host stat buffer to a target stat
177 /// buffer. Also copies the target buffer out to the simulated
178 /// memory space. Used by stat(), fstat(), and lstat().
181 copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat *host)
183 using namespace TheISA;
185 TypedBufferArg<Linux::tgt_stat> tgt(addr);
187 tgt->st_dev = htog(host->st_dev);
188 tgt->st_ino = htog(host->st_ino);
189 tgt->st_mode = htog(host->st_mode);
190 tgt->st_nlink = htog(host->st_nlink);
191 tgt->st_uid = htog(host->st_uid);
192 tgt->st_gid = htog(host->st_gid);
193 tgt->st_rdev = htog(host->st_rdev);
194 tgt->st_size = htog(host->st_size);
195 tgt->st_atimeX = htog(host->st_atime);
196 tgt->st_mtimeX = htog(host->st_mtime);
197 tgt->st_ctimeX = htog(host->st_ctime);
198 tgt->st_blksize = htog(host->st_blksize);
199 tgt->st_blocks = htog(host->st_blocks);
204 // Third version for bsd systems which no longer have any support for
205 // the old stat() call and stat() is actually a stat64()
207 copyOutStatBuf(TranslatingPort *mem, Addr addr, hst_stat64 *host)
209 using namespace TheISA;
211 TypedBufferArg<Linux::tgt_stat> tgt(addr);
213 tgt->st_dev = htog(host->st_dev);
214 tgt->st_ino = htog(host->st_ino);
215 tgt->st_mode = htog(host->st_mode);
216 tgt->st_nlink = htog(host->st_nlink);
217 tgt->st_uid = htog(host->st_uid);
218 tgt->st_gid = htog(host->st_gid);
219 tgt->st_rdev = htog(host->st_rdev);
220 tgt->st_size = htog(host->st_size);
221 tgt->st_atimeX = htog(host->st_atime);
222 tgt->st_mtimeX = htog(host->st_mtime);
223 tgt->st_ctimeX = htog(host->st_ctime);
224 tgt->st_blksize = htog(host->st_blksize);
225 tgt->st_blocks = htog(host->st_blocks);
234 copyOutStat64Buf(TranslatingPort *mem, int fd, Addr addr, hst_stat64 *host)
236 using namespace TheISA;
238 TypedBufferArg<Linux::tgt_stat64> tgt(addr);
240 // fd == 1 checks are because libc does some checks
241 // that the stdout is interactive vs. a file
242 // this makes it work on non-linux systems
244 tgt->st_dev = htog((uint64_t)0xA);
246 tgt->st_dev = htog((uint64_t)host->st_dev);
247 // XXX What about STAT64_HAS_BROKEN_ST_INO ???
248 tgt->st_ino = htog((uint64_t)host->st_ino);
250 tgt->st_rdev = htog((uint64_t)0x880d);
252 tgt->st_rdev = htog((uint64_t)host->st_rdev);
253 tgt->st_size = htog((int64_t)host->st_size);
254 tgt->st_blocks = htog((uint64_t)host->st_blocks);
257 tgt->st_mode = htog((uint32_t)0x2190);
259 tgt->st_mode = htog((uint32_t)host->st_mode);
260 tgt->st_uid = htog((uint32_t)host->st_uid);
261 tgt->st_gid = htog((uint32_t)host->st_gid);
262 tgt->st_blksize = htog((uint32_t)host->st_blksize);
263 tgt->st_nlink = htog((uint32_t)host->st_nlink);
264 tgt->tgt_st_atime = htog((uint64_t)host->st_atime);
265 tgt->tgt_st_mtime = htog((uint64_t)host->st_mtime);
266 tgt->tgt_st_ctime = htog((uint64_t)host->st_ctime);
267 #if defined(STAT_HAVE_NSEC)
268 tgt->st_atime_nsec = htog(host->st_atime_nsec);
269 tgt->st_mtime_nsec = htog(host->st_mtime_nsec);
270 tgt->st_ctime_nsec = htog(host->st_ctime_nsec);
272 tgt->st_atime_nsec = 0;
273 tgt->st_mtime_nsec = 0;
274 tgt->st_ctime_nsec = 0;
283 #endif // FULL_SYSTEM
285 #endif // __LINUX_HH__