driver/attach/data typically present and once some locking is grown
in here, these routines can be made to fail or succeed a component
attachment/detachment atomically.
respect the alignment in the ELF phdr.
Also, for correctness, use the maximum alignment of the PT_LOAD
sections rather than just the first one found.
Also, use more meaningful types.
consistently across the code.
- Re-do note parsing code to read the section headers instead of the program
headers because the new binutils merge all the note sections in one program
header. This fixes all the pax note parsing which has been broken for all
binaries built with the new binutils.
- Add diagnostics to the note parsing code to detect malformed binaries.
- Allocate and free note scratch space only once, not once per note.
it'll get spammy.
XXX: this should probably be printed iff the toplevel module is
not being autoloaded (i.e. there is a human to interpret the error).
Otherwise disabled dependencies give a misleading EPERM.
at boot.
Add a ksyms_mod_foreach() function to iterate a callback function over the
set of elf symbols for a specific module (netbsd included).
Add kern_ctf.c and mod_ctf_get() to allow the retrieval and decompression
of CTF sections for a specific module.
instead of using linksets directly. This has two implications:
1) It is now possible to "unload" a builtin module provided it is
not busy. This is useful e.g. to disable a kernel feature as
an immediate workaround to a security problem. To re-initialize
the module, modload -f <name> is required.
2) It is possible to use builtin modules which were linked at
runtime with an external linker (dlopen + rump).
conditionally build DEV_BSIZE adjustments for kernel. fsck_ffs shares
the same code but accesses physical blocks.
Also compute correct block numbers for each physical sector.
to the total free memory available to the system, use the smallest value
between VM_MAXUSER_ADDRESS and total free memory (having a RSS limit
bigger than VM_MAXUSER_ADDRESS has no real meaning).
Fix a possible int overflow when ptoa(uvmexp.free) is bigger than 4GB
with a 32 bits vaddr_t.
This change is similar to the one made in rev 1.144 of uvm/uvm_glue.c.
and non-const types, and the kernel uses both const and non-const
PMF qualifiers and device suspensors, so change the pmf_qual_t and
device_suspensor_t typedefs from "pointers to const" to non-pointer,
non-const types.
Also change access to filesystem blocks to be done by fragment instead
of by physical block. Fragments are the fundamental blocks of the
filesystem.
For a theoretical filesystem that accesses the disk in smaller units
than stored in mp->mnt_fs_bshift, the assumption might be wrong. But
this will also break other subsystems. The value mp->mnt_dev_bshift
which formerly represents the physical sector size is currently only
virtual in NetBSD (always DEV_BSIZE).
than 0. This is still not the intent of PIE, but it allows them to
run with VA 0 disabled.
(The PAX_ASLR stuff which should deal with this needs work.)
CV: ----------------------------------------------------------------------
DTrace adds a pointer to the lwp and proc structures which it uses to
manage its state. These are opaque from the kernel perspective to keep
the kernel free of CDDL code. The state arenas are kmem_alloced and freed
as proccesses and threads are created and destoyed.
Also add a check for trap06 (privileged/illegal instruction) so that
DTrace can check for D scripts that may have triggered the trap so it
can clean up after them and resume normal operation.
Ok with core@.
out of the way before trying to get a unit number. If we cannot
get a unit number, we call config_devfree(), which expects for
fields such as dv_flags, dv_cfattach, and dv_private to be initialized.
