struct stat (Debugging with GDB)
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struct stat
The buffer of type struct stat
used by the target and GDB is defined as follows:
struct stat { unsigned int st_dev; /* device */ unsigned int st_ino; /* inode */ mode_t st_mode; /* protection */ unsigned int st_nlink; /* number of hard links */ unsigned int st_uid; /* user ID of owner */ unsigned int st_gid; /* group ID of owner */ unsigned int st_rdev; /* device type (if inode device) */ unsigned long st_size; /* total size, in bytes */ unsigned long st_blksize; /* blocksize for filesystem I/O */ unsigned long st_blocks; /* number of blocks allocated */ time_t st_atime; /* time of last access */ time_t st_mtime; /* time of last modification */ time_t st_ctime; /* time of last change */ };
The integral datatypes conform to the definitions given in the appropriate section (see Integral Datatypes, for details) so this structure is of size 64 bytes.
The values of several fields have a restricted meaning and/or range of values.
st_dev
- A value of 0 represents a file, 1 the console.
st_ino
- No valid meaning for the target. Transmitted unchanged.
st_mode
- Valid mode bits are described in Constants. Any other bits have currently no meaning for the target.
st_uid
st_gid
st_rdev
- No valid meaning for the target. Transmitted unchanged.
st_atime
st_mtime
st_ctime
- These values have a host and file system dependent accuracy. Especially on Windows hosts, the file system may not support exact timing values.
The target gets a struct stat
of the above representation and is responsible for coercing it to the target representation before continuing.
Note that due to size differences between the host, target, and protocol representations of struct stat
members, these members could eventually get truncated on the target.
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