. data structure that automatically keeps a set
of pages in reserve, to replace sparepages and
possibly re-used in the future for similar situations,
e.g. if in-filesystem-cache block eviction is
implemented and FS asks for a new block
Change-Id: I149d46c14b9c8e75df16cb94e08907f008c339a6
When you provided a string with junk after the terminating nul to a
UNIX domain socket and used bind(2), the canonical path function would
not properly terminate the new string. This caused VFS to return
ENAMETOOLONG on an otherwise valid path name.
Test case is added to test56.
Change-Id: I883b6be23d9e4ea13c3cee28cbb3726343df037f
Do not hardcode warning and optimisation flags, otherwise the
main options (i.e. DBG, CPPFLAGS) will not work as expected.
You can still provide specific default by using DBG?=<value>.
Doing so leaves the opportunity to override the setting from the
commandline, while the default value from the build system is
then ignored for that particular package.
When crosscompiling, and using build.sh, adding -V DBG=<value> has
this same effect as make DBG=<value>.
Change-Id: Ic610e4d33b945acad64571e1431f1814291e2d84
REQ_PEEK behaves just like REQ_READ except that it does not copy
data anywhere, just obtains the blocks from the FS into the cache.
To be used by the future mmap implementation.
Change-Id: I1b56de304f0a7152b69a72c8962d04258adb44f9
Select(2)ing on UNIX domain sockets was not working properly because
connection state wasn't properly checked/propagated. So selecting for
a read descriptor and closing the write descriptor on the other end
didn't cause select to return. Similarly, read(2) kept blocking while
it should return an error when the other end closed the socket.
Change-Id: I3f5bb52af1a6b03313d508bf915fc838357ba450
. if there is no memory there, it's not writable; this
check bug by the shared memory's writable() method causes
pagefaults not to be handled at all in certain situations,
triggering an assert() in pt_writemap()
. added some assert()s to catch this and similar situations
in the future
Change-Id: Ife89bfab4f9a3aa7bf4e33dfb0b13b89dcd5bb94
The build system distinction between "bootprog" and "service" is
meaningless as boot programs are standard services.
As minix.service.mk simply imports minix.bootprog.mk, reduce confusion
by removing minix.bootprog.mk and placing the rules in minix.service.mk.
Change-Id: I4056b1e574bed59a8c890239b41b1a7c7cad63e8
Remove old versions of system calls and system calls that don't have
a libc api interface anymore (dup, dup2, creat).
VFS still contains support for old system call numbers for the new stat
system calls (i.e., 65, 66, 67) to keep supporting old binaries built for
MINIX 3.2.1 (prior to the release).
Change-Id: I721779b58a50c7eeae20669de24658d55d69b25b
When a service fails to initialize, RS exits the service. When injecting
faults this is undesired behavior. With this patch, we're going to assume
that when starting services with the -b flag (no binary exponential
offset), we don't want to exit the service but simply restart the
initialization.
Change-Id: Ie8b9c89e16fe4df8a89ec30ec678a216b4ec5fd0
libchardriver does not support DEV_REOPEN and will return ERESTART
when you do try it. This made VFS unhappy and concluded erroneously
that the driver was EDEADEPT.
. the total amount of memory in the system didn't include the memory
used by the boot-time modules and some dynamic allocation by the
kernel at boot time (to map in VM). especially apparent on our
ARM board with 'only' 512MB of memory and a huge ramdisk.
. also: *add* the VM loaded module to the freelist after it has
been allocated for & mapped in instead of cutting it *out* of the
freelist! so we get a few more MB free..
Change-Id: If37ac32b21c9d38610830e21421264da4f20bc4f
. allow any number of pde's used for pagedir mapping
. allows >1024 NR_PROCS on x86, >64 on ARM
. allows NR_PROCS to be the same in both cases
. also cleanup: allocating spare PDE's is not necessary
throw that function out
Change-Id: Ibb8f8cf6e7db6a4d6384b6911d1a3f3f5e5d8256
if an exec() fails partway through reading in the sections, the target
process is already gone and a defunct process remains. sanity checking
the binary beforehand helps that.
test10 mutilates binaries and exec()s them on purpose; making an exec()
fail cleanly in such cases seems like acceptable behaviour.
fixes test10 on ARM.
Change-Id: I1ed9bb200ce469d4d349073cadccad5503b2fcb0
The 'polarity' of the RW bit is inversed on ARM, causing one
of the sanity check compensations to fail. ARM now runs basic
stuff with sanity checks passing.
Change-Id: Iee28ab63e430e759f204eeb204b24c301d5ea3c9
. make vm tell kernel virtual locations of mappings
. makes _minix_kerninfo feature work
. fix for mappings being larger than what 1 pde can address
(e.g. devices memory requested on arm)
. still requires a special case for devices memory for the
kernel, which has to switch to virtual addressing
Change-Id: I2e94090aa432346fa4da0edeba72f0b7406c2ad7
Due to the ABI we are using we have to use the earm architecture
moniker for the build system to behave correctly. This involves
then some headers to move around.
There is also a few related Makefile updates as well as minor
source code corrections.
Fix warnings about:
. Unused variables
. format mismatch in printf/scanf format string and arguments
. Missing parenthesis around assignment as truth values
. Clang warnings anout unknown GCC pragma
* Updating common/lib
* Updating lib/csu
* Updating lib/libc
* Updating libexec/ld.elf_so
* Corrected test on __minix in featuretest to actually follow the
meaning of the comment.
* Cleaned up _REENTRANT-related defintions.
* Disabled -D_REENTRANT for libfetch
* Removing some unneeded __NBSD_LIBC defines and tests
Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
This patch uses stricter locking for REQ_LINK, REQ_MKDIR, REQ_MKNOD,
REQ_RENAME, REQ_RMDIR, REQ_SLINK and REQ_UNLINK. For all requests, VFS
locks the directory in which we add or remove an inode with VNODE_WRITE.
I.e., the operations have exclusive access to that directory.
Furthermore, REQ_CHOWN, REQ_CHMOD, and REQ_FTRUNC now lock the vmnt
VMNT_READ; VMNT_WRITE was unnecessary.
