15 Commits

Author SHA1 Message Date
Lionel Sambuc
0a6a1f1d05 NetBSD re-synchronization of the source tree
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
2016-01-13 20:32:14 +01:00
David van Moolenbroek
29346ab043 PM: add support for wait4(2)
This patch adds support for the wait4 system call, and with that the
wait3 call as well.  The implementation is absolutely minimal: only
user and system times of the exited child are returned (with all other
rusage fields left zero), and there is no support for tracers.  Still,
this should cover the main use cases of wait4.

Change-Id: I7a04589a8423a23990ab39aa38e85d535556743a
2015-09-29 18:15:28 +00:00
David van Moolenbroek
bc2d75fa05 Rework getrusage(2) infrastructure
- the userland call is now made to PM only, and PM relays the call to
  other servers as appropriate; this is an ABI change that will
  ultimately allow us to add proper support for wait3() and the like;
  for the moment there is backward compatibility;
- the getrusage-specific kernel subcall has been removed, as it
  provided only redundant functionality, and did not provide the means
  to be extended correctly in the future - namely, allowing the kernel
  to return different values depending on whether resource usage of
  the caller (self) or its children was requested;
- VM is now told whether resource usage of the caller (self) or its
  children is requested, and it refrains from filling in wrong values
  for information it does not have;
- VM now uses the correct unit for the ru_maxrss values;
- VFS is cut out of the loop entirely, since it does not provide any
  values at the moment; a comment explains how it should be readded.

Change-Id: I27b0f488437dec3d8e784721c67b03f2f853120f
2015-09-28 14:06:59 +00:00
David van Moolenbroek
0f5c95a00b PM: make child time accumulation POSIX compliant
POSIX states that times() and getrusage() should only return child
user and system times of terminated children for which wait*() has
returned their PIDs.

Change-Id: I38e19ad71543a3b91e944bef8e4e1bd903de51bf
2015-09-28 14:06:57 +00:00
David van Moolenbroek
d91f738bd8 Kernel: export clock information on kernel page
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
2015-09-23 12:00:46 +00:00
David van Moolenbroek
129adfeb53 Annotations and tweaks for live update
This change is necessary for instrumentation-aided state transfer.

Change-Id: I24be938009f02e302a15083f9a7a11824975e42b
2015-09-17 17:13:38 +00:00
Cristiano Giuffrida
3f82ac6a4e services: Selectively enable stateful restart.
Change-Id: Ibf6afa3041013ca714e28b673abb1329cd72d2d5
2015-09-17 13:36:01 +00:00
Cristiano Giuffrida
0e78c0166c Switch to stateful restart.
The following services have been updated to support stateful restarts:
 - Drivers: tty
 - Filesystems: isofs, mfs, pfs, libvtreefs-based file servers
 - System servers: tty, ds, pm, vfs, vm

Change-Id: Ie84baa3ba1774047b3ae519808fe4116928edabb
2015-09-17 13:26:22 +00:00
David van Moolenbroek
1dcfbcd173 Remove support for call profiling
The entire infrastructure relied on an ACK feature, and as such, it
has been broken for years now, with no easy way to repair it.

Change-Id: I783c2a21276967af115a642199f31fef0f14a572
2014-09-30 12:39:03 +00:00
David van Moolenbroek
f737eea636 svrctl(2) update
- synchronize request type with ioctl by making it unsigned long;
- unbreak VFS requests, as they were being sent to PM;
- use proper ioctl direction flags (and new numbers) for requests;
- remove some needless header inclusions;
- svrctl is in libc, make its message name reflect this;
- keep backward compatibility: svrctl is part of the userland ABI.

Change-Id: I44902e8d0d11b8ebc1ef3bda94d2202481743c9b
2014-09-29 16:15:21 +00:00
David van Moolenbroek
ad80a203db Move clock_time into libsys
Change-Id: Ibc5034617e6f6581de7c4a166ca075b3c357fa82
2014-09-18 12:46:26 +00:00
Lionel Sambuc
ea36b58e62 Set uts.machine to i386 on intel 32bit platforms.
Change-Id: Ic0833843f0d3e3df50fcbde11b453b846f0d4f33
2014-09-05 15:35:23 +02:00
Ben Gras
cd34841de5 INIT died problem / build system robustness
Changes provoked by debugging / making 'PM: INIT died' error debuggable.

This was caused (in one instance) by a missing /dev/console (and everything
else) on the boot time ramdisk.

	. sanity-check against this case by checking for console
	. PM: print init stacktrace and exit status when init dies
	. eliminate some explicitly invoked ${MAKE}s and a rm -rf in
	  Makefiles, causing race conditions; use explicit ordering (.WAIT)
	  instead, moving some of the burden of dependencies of partial builds
	  to the user. On the plus side, generate ramdisk just once.
	. make mkfs.mfs fail as soon as it sees an error missing file in
	  the proto file. - except for EACCES on minix native for the mfs
	  test. also fix some fmt warnings.
	. init: include debug info in executable

Change-Id: I8eea4986a4f64ecaf223aff5da321d8b4f4a3fa4
2014-08-28 08:52:50 +02:00
Lionel Sambuc
50a1aef12b Move all services to /service
This concerns all services, a.k.a drivers, filesystem drivers, network
(inet, lwip, uds) servers, and the system servers.

Change-Id: I626fd15c795e15af42df2d10d47fb4a703665d63
2014-07-31 16:00:31 +02:00
Lionel Sambuc
433d6423c3 New sources layout
Change-Id: Ic716f336b7071063997cf5b4dae6d50e0b4631e9
2014-07-31 16:00:30 +02:00