POSIX truncate specification says "Upon successful completion, if
the *file size is changed*, this function shall mark for update the
st_ctime and st_mtime fields of the file." This patch prevents
changing of the date fields when the size stays the same.
. Feature to do a 'release' into a permanent
and usable FS hierarchy, usable with chroot
. Just like the temporary staging hierarchy really
. Useful to checking out and building the latest
version of minix from a host minix; to
(1) make an uptodate minix jail, and
(2) make a sterile, reproducible jail environment, and
(3) use as disposable environment in which moving /usr/pkg
is ok
(i.e. pkgsrc bulk builds)
. strerror() assumes this
. remove generated libminc/errlist.c
. errno's in <sys/errno.h> have to be in sorted order
. filtering out some errno.h in Makefile lets us use near-stock
errlist.awk
* VFS and installed MFSes must be in sync before and after this change *
Use struct stat from NetBSD. It requires adding new STAT, FSTAT and LSTAT
syscalls. Libc modification is both backward and forward compatible.
Also new struct stat uses modern field sizes to avoid ABI
incompatibility, when we update uid_t, gid_t and company.
Exceptions are ino_t and off_t in old libc (though paddings added).
Now users can choose between libsys, libsys + libminc and
libsys + libc. E.g. PUFFS/FUSE servers need libsys + libc while
old servers can use libsys + libminc.
- the pointers must be flagged as volatile because otherwise they
might be "optimized" by a compiler. It is a common good
practice to access the registers this way, the keyword is in C
for a reason.
- for instance, in eeprom_eerd() when polling a register the
compiler, under certain conditions, may decide upon the first
read and if it does not break the loop it assumes that the
value is not going to change and thus stays in an infinite
loop.
1. ack, a.out, minix headers (moved to /usr/include.ack),
minix libc
2. gcc/clang, elf, netbsd headers (moved to /usr/include),
netbsd libc (moved to /usr/lib)
So this obsoletes the /usr/netbsd hierarchy.
No special invocation for netbsd libc necessary - it's always used
for gcc/clang.
. if the build target is invoked again for the install target, the
stack sizes aren't set properly. A workaround is to only build
and not install the servers. (Installing them doesn't really make
sense anyway.)
The opendir(3) function was setting errno to ENOTDIR even
when the directory existed and was opened successfully. This
caused git to falsely detect an error.
This change moves the errno assignment into the failure code
block. It also adds a test to test24 to check for errno
changing when opendir(3) returns success.
