This functionality is required for BSD top(1), as exposed through
the CTL_KERN KERN_CP_TIME sysctl(2) call. The idea is that the
overall time spent in the system is divided into five categories.
While NetBSD uses a separate category for the kernel ("system") and
interrupts, we redefine "system" to mean userspace system services
and "interrupts" to mean time spent in the kernel, thereby providing
the same categories as MINIX3's own top(1), while adding the "nice"
category which, like on NetBSD, is used for time spent by processes
with a priority lowered by the system administrator.
Change-Id: I2114148d1e07d9635055ceca7b163f337c53c43a
This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.
This updates:
- LLVM to 3.6.1
- GCC to GCC 5.1
- Replace minix/commands/zdump with usr.bin/zdump
- external/bsd/libelf has moved to /external/bsd/elftoolchain/
- Import ctwm
- Drop sprintf from libminc
Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
Currently, the userland ABI uses a single field ('user_sp') far
into the very large 'kinfo' structure on the shared kernel
information page. This precludes us from modifying or getting
rid of 'kinfo' in the future without breaking userland. This
patch adds a separate 'kuserinfo' structure to the kernel
information page, with only information that is part of the
userland ABI, in an extensible manner. Userland now uses this
field if it is present, and falls back to the old field if not.
Change-Id: Ib7b24b53a440f40a2edc28cdfa48447ac2179288
This change serves to reduce the clutter inside the top-level kerninfo
structure, and allows other ARM-specific values to be added on the
kernel page in one place.
Change-Id: I36a6aada9dbd1230b25014728be675d389088667
Please note that this information is for use by system services only!
The clock facility is not ready to be used directly by userland, and
thus, this kernel page extension is NOT part of the userland ABI.
For service programmers' convenience, change the prototype of the
getticks(3) to return the uptime clock value directly, since the call
can no longer fail.
Correct the sys_times(2) reply message to use the right field type
for the boot time.
Restructure the kernel internals a bit so as to have all the clock
stuff closer together.
Change-Id: Ifc050b7bd253aecbe46e3bd7d7cc75bd86e45555
. make arch-independent, and local to proc.c, reduce code duplication
. make vm_suspend public but unduplicated in proc.c
. ask VM for handling once, 2nd time SIGSEGV process
. remove debug printfs
. test case for bogus sendrec() address argument
Change-Id: I3893758910c01de60b8fe3e50edd594296a0b73e
Add support for compact address layout. This feature can be enabled
through the ac_layout=1 boot option.
Change-Id: Ie20b808fce32b5c54d0a7e7210e0084a540e9613
. bitcode fixes
. switch to compiler-rt instead of netbsd libc functions
or libgcc for support functions for both x86 and arm
. minor build fixes
. allow build with llvm without crossbuilding llvm itself
. can now build minix/arm using llvm and eabi - without C++
support for now (hence crossbuilding llvm itself is turned off
for minix/arm)
Change-Id: If5c44ef766f5b4fc4394d4586ecc289927a0d6eb
