CVS log for src/sys/compat/linux/common/linux_sig_notalpha.c

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add support COMPAT_LINUX32 for aarch64

add support COMPAT_LINUX for aarch64

Sync with HEAD.

sync with head

Add the mask value returned by siggetmask.

Sync with HEAD.

sync with head.

sync with head.

Per discussion with ad, remove most of the #include <sys/sa.h> lines
as they were including sa.h just for the type(s) needed for syscallargs.h.

Instead, create a new file, sys/satypes.h, which contains just the
types needed for syscallargs.h. Yes, there's only one now, but that
may change and it's probably more likely to change if it'd be difficult
to handle. :-)

Per discussion with matt at n dot o, add an include of satypes.h to
sigtypes.h. Upcall handlers are kinda signal handlers, and signalling
is the header file that's already included for syscallargs.h that
closest matches SA.

This shaves about 3000 lines off of the diff of the branch relative
to the base. That also represents about 18% of the total before this
checkin.

I think this reduction is very good thing.

Initial checkin of re-adding SA. Everything except kern_sa.c
compiles in GENERIC for i386. This is still a work-in-progress, but
this checkin covers most of the mechanical work (changing signalling
to be able to accomidate SA's process-wide signalling and re-adding
includes of sys/sa.h and savar.h). Subsequent changes will be much
more interesting.

Also, kern_sa.c has received partial cleanup. There's still more
to do, though.

Remove clause 3 and 4 from TNF licenses

Merge proc::p_mutex and proc::p_smutex into a single adaptive mutex, since
we no longer need to guard against access from hardware interrupt handlers.

Additionally, if cloning a process with CLONE_SIGHAND, arrange to have the
child process share the parent's lock so that signal state may be kept in
sync. Partially addresses PR kern/37437.

sync with head

sync with HEAD

Sync with HEAD

Sync with head.

Convert all the system call entry points from:
    int foo(struct lwp *l, void *v, register_t *retval)
to:
    int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code to not write into 'uap' and (in some cases) to actually
pass a correctly formatted 'uap' structure with the right name to the
next routine.
A few 'compat' routines that just call standard ones have been deleted.
All the 'compat' code compiles (along with the kernels required to test
build it).
98% done by automated scripts.

Sync with HEAD.

ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

sync with HEAD

sync with head.

Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

Sync with HEAD.

Add compat_linux and exec_linux_elf lkm support for amd64:
- Add needed COMPAT_OSSAUDIO to GENERIC.
- Add missing includes needed by linux_syscallargs.h.
- Add lkm building.

sync with head.

Merge newlock2 to head.

Remove support for SA. Ok core@.

Fix Linux compatability for i386, others to follow later.

sync with head.

sync with head.

Sync with head.

__unused removal on arguments; approved by core.

- Redo LWP locking slightly and fix some races.
- Fix some locking botches.
- Make signal mask / stack per-proc for SA processes.
- Add _lwp_kill().

sync with head

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

merge ktrace-lwp.

Sync with HEAD. Here we go again...

First work on COMPAT_LINUX/amd64
Process startup and dynamiclinking work, but processes hang due to
Linux arch_prctl(2) not being really supported yet.

sync with -current

sync with head.  xen and whitespace.  xen part is not finished.

Sync with HEAD.

Hi Perry!

nuke trailing whitespace

Merge the nathanw_sa branch.

sync kqueue branch with HEAD

Catch up to -current.

catch up with -current.

No longer need to pull in lwp.h; proc.h pulls it in for us.

Add kernel support for having userland provide the signal trampoline:

* struct sigacts gets a new sigact_sigdesc structure, which has the
  sigaction and the trampoline/version.  Version 0 means "legacy kernel
  provided trampoline".  Other versions are coordinated with machine-
  dependent code in libc.
* sigaction1() grows two more arguments -- the trampoline pointer and
  the trampoline version.
* A new __sigaction_sigtramp() system call is provided to register a
  trampoline along with a signal handler.
* The handler is no longer passed to sensig() functions.  Instead,
  sendsig() looks up the handler by peeking in the sigacts for the
  process getting the signal (since it has to look in there for the
  trampoline anyway).
* Native sendsig() functions now select the appropriate trampoline and
  its arguments based on the trampoline version in the sigacts.

Changes to libc to use the new facility will be checked in later.  Kernel
version not bumped; we will ride the 1.6C bump made recently.

catch up with -current on kqueue branch

#include <sys/sa.h> before <sys/syscallargs.h>, to provide sa_upcall_t
now that <sys/param.h> doesn't include <sys/sa.h>.

(Behold the Power of Ed)

Catch up to -current.

make signal array handling uniform, and put signal arrays in a separate
file. This is simular to errno array handling.

Catch up with -current.

Catch up to -current.

- add a real linux_sys___sysctl because the mib numbers are different.
  implement only the kernel version getting entries.
- make the signal conversion functions consistent; dest is arg 1.
- make linux_fakedev deal with block and char devices differently.
- add linux_sys_ugetrlimit, and flesh out the regular get/setrlimit so
  that they work properly.
- add linux_mmap2 [untested].
- bump kernel to 2.4.18, and make the date be valentine's day :-)
- linux_sys_*stat64 family was totally busted. Fix it.

tested only on i386.

Status:
	gdb, telnet, work
	jdk-1.4.0 extractor works, jdk still coredumps.

christos

Sync kqueue branch with -current.

#include <sys/lwp.h> for Mips architectures.

Catch up to -current.

add RCSIDs (including regeneration of files as appropriate)

Initial commit of scheduler activations and lightweight process support.

Update thorpej_scsipi to -current as of a month ago

Kill register declarations.

Pull up to last week's -current.

Fix typo in last commit.

Adapt to renamed system call argument.

Add bound checks in emulation of signal(2) and return SIG_ERR on failure.
This fixes a part of PR kern/8904 by Dave Sainty.

Fix typos.

sigprocmask (non-rt version) doesn't exist on alpha.  Add it here.

Assign my copyright to TNF. Merge with others were appropriate.
Regen syscall files after script change.

Attempt to fix the mess.

Split compat/linux/linux_signal.c into i386, common and multi-architecture parts.

Bracket stray printf()s by #ifdef DEBUG.

Substantial signal handling changes:
* Increase the size of sigset_t to accomodate 128 signals -- adding new
  versions of sys_setprocmask(), sys_sigaction(), sys_sigpending() and
  sys_sigsuspend() to handle the changed arguments.
* Abstract the guts of sys_sigaltstack(), sys_setprocmask(), sys_sigaction(),
  sys_sigpending() and sys_sigsuspend() into separate functions, and call them
  from all the emulations rather than hard-coding everything.  (Avoids uses
  the stackgap crap for these system calls.)
* Add a new flag (p_checksig) to indicate that a process may have signals
  pending and userret() needs to do the full (slow) check.
* Eliminate SAS_ALTSTACK; it's exactly the inverse of SS_DISABLE.
* Correct emulation bugs with restoring SS_ONSTACK.
* Make the signal mask in the sigcontext always use the emulated mask format.
* Store signals internally in sigaction structures, rather than maintaining a
  bunch of little sigsets for each SA_* bit.
* Keep track of where we put the signal trampoline, rather than figuring it out
  in *_sendsig().
* Issue a warning when a non-emulated sigaction bit is observed.
* Add missing emulated signals, and a native SIGPWR (currently not used).
* Implement the `not reset when caught' semantics for relevant signals.

Note: Only code touched by the i386 port has been modified.  Other ports and
emulations need to be updated.

bzero->memset, bcopy->memcpy, bcmp->memcmp

- Add missing prototypes
- Fix bugs with reversed arguments that prototyping discovered

Prefix names of system call implementation functions with `sys_'.

Make system calls conform to a standard prototype and bring those
prototypes into scope.

Move signal types into signal.h.

Convert SA_NOMASK and SA_ONESHOT.
Clean up this code a bit.

Use compat_util.[ch].

* Changed to use generic ELF code from kern/exec_elf.c (which was taken
  from the svr4 exec code plus the linux compat mods)
* Include file change
* Add multicast sockopts (from John Brezak)

Add the Linux pause() system call. Fix the arguments to sigsuspend().

Fix typo in comment.

Added Linux compat code.