sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.4.2;
should not be using .include <> but .include "" here.

Do not include bsd.kinc.mk in each arch Makefile, it's already pulled
by bsd.syscall.mk (from Makefile.inc).

branches: 1.2.110; 1.2.120; 1.2.126; 1.2.136;
merge ktrace-lwp.

branches: 1.1.8;
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.

Switch Linux futex emulation to native ucas_int(), remove unecessary
futex-specific assembler routines.

Fixes PR/40490. Reviewed by <ad>.

branches: 1.3.2; 1.3.4; 1.3.8;
catch up with i386 changes.

branches: 1.2.70; 1.2.80;
merge ktrace-lwp.

branches: 1.1.8;
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.

fix various typos, mainly in comments.

Always clear FUTEX_PRIVATE_FLAG for Linux processes. NetBSD-native futexes
exist in different namespace depending on FUTEX_PRIVATE_FLAG. This appears
not to be the case in Linux, and some futex users will mix private and non-
private ops on the same futex object. Provide a convenience wrapper that
puts this logic in one place witn a comment explaining why.

While here, move the Linux futex wrapper out of its own file and plop
it in linux_misc.c, which is where it lives in the linux32 module.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

branches: 1.10.2; 1.10.4;
Nuke fs_lfs.h included for unknown reasons (if there was a reason
other than "accident", i hereby declare that reason invalid)

branches: 1.9.6;
Make the emulations, exec formats, coredump, NFS, and the NFS server
into modules. By and large this commit:

- shuffles header files and ifdefs
- splits code out where necessary to be modular
- adds module glue for each of the components
- adds/replaces hooks for things that can be installed at runtime

branches: 1.8.2;
Remove unneeded linux_sigaction.c

branches: 1.7.22; 1.7.26; 1.7.28; 1.7.32;
Changes to make ktrace LKM friendly and reduce ifdef KTRACE. Proposed
on tech-kern.

branches: 1.6.6; 1.6.14; 1.6.18;
Merge newlock2 to head.

branches: 1.5.14;
Add initial (but unfinished) COMPAT_LINUX32 for amd64. This is good enough so
that the i386 license manager part of amd64 version of Fluent works.

While I'm here, add SysV IPC to COMPAT_LINUX/amd64

branches: 1.4.2; 1.4.4; 1.4.6;
merge ktrace-lwp.

branches: 1.3.2;
Implement Linux futex and gettid system calls for amd64

build fix

branches: 1.1.2; 1.1.4;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.3.66;
Cleanup compat linux errnos by adding generic errnos in a single file.
Use it for all arches except alpha and mips.
Add a few missing native to linux errno conversions.

branches: 1.2.110; 1.2.120; 1.2.126;
merge ktrace-lwp.

branches: 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.6.10;
- LINUX_GO_RT0_SIGNATURE for compat_linux is no longer enabled by default.
it is now defined in each arch same as the other *_SIGNATURE definitions.
- add new LINUX32_GO_RT0_SIGNATURE for compat_linux32, and is defined in amd64 and aarch64.

implement AT_RANDOM.

branches: 1.4.94; 1.4.104; 1.4.110;
Add a new signature test for linux probe function. We look for a .debuglink
section, which is specific to the Linux dynamic interpeter (yes, Linux
can execute it as a stand alone program)

branches: 1.3.4; 1.3.8;
PR/32303: Nicolas Joly: Fix -current amd64 kernel compilation failure with
options COMPAT_LINUX

merge ktrace-lwp.

branches: 1.1.2; 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.24.26;
Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
to query whether curlwp is the pagedaemon, which should maybe be
exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
by it. We should split up uvm_extern.h but this will serve for now
to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
UVMHIST(ubchist), since ubchist is declared in uvm.h but the
reference evaporates if UVMHIST is not defined, so we reduce header
file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
here.

ok chs@

Tidy up the vnode locking around execve() on ELF images to acquire and
release the locks fewer times. Proposed on tech-kern a very long time go.

branches: 1.22.30; 1.22.36;
Use cprng_strong32 for LINUX_AT_RANDOM on amd64 too.

Increase LINUX32_ELF_AUX_ENTRIES to avoid overrun in linux32/. Also,
add comments and KASSERTs to make sure people don't forget to increase
XX_AUX_ENTRIES's when adding vectors.

Reported by martin@ (CV), with suggestions from chs@.

ok martin@ chs@

implement AT_RANDOM.

branches: 1.19.6; 1.19.10;
Add a hook for freeing an ep_emul_arg. Add a wrapper routine
(exec_free_emul_arg) to call the hook and then clear the ep_emul_arg
and ep_emul_arg_free members in the exec_package.
Change users/accessors to use these routines.
Approved by releng.

branches: 1.18.8; 1.18.12;
many changes for COMPAT_LINUX:
- update the linux syscall table for each platform.
- support new-style (NPTL) linux pthreads on all platforms.
clone() with CLONE_THREAD uses 1 process with many LWPs
instead of separate processes.
- move the contents of sys__lwp_setprivate() into a new
lwp_setprivate() and use that everywhere.
- update linux_release[] and linux32_release[] to "2.6.18".
- adjust placement of emul fork/exec/exit hooks as needed
and adjust other emul code to match.
- convert all struct emul definitions to use named initializers.
- change the pid allocator to allow multiple pids to refer to the same proc.
- remove a few fields from struct proc that are no longer needed.
- disable the non-functional "vdso" code in linux32/amd64,
glibc works fine without it.
- fix a race in the futex code where we could miss a wakeup after
a requeue operation.
- redo futex locking to be a little more efficient.

branches: 1.17.2;
Small typo in comment.

branches: 1.16.2;
- add new RLIMIT_AS (aka RLIMIT_VMEM) resource that limits the total
address space available to processes. this limit exists in most other
modern unix variants, and like most of them, our defaults are unlimited.
remove the old mmap / rlimit.datasize hack.

- adds the VMCMD_STACK flag to all the stack-creation vmcmd callers.
it is currently unused, but was added a few years ago.

- add a pair of new process size values to kinfo_proc2{}. one is the
total size of the process memory map, and the other is the total size
adjusted for unused stack space (since most processes have a lot of
this...)

- patch sh, and csh to notice RLIMIT_AS. (in some cases, the alias
RLIMIT_VMEM was already present and used if availble.)

- patch ps, top and systat to notice the new k_vm_vsize member of
kinfo_proc2{}.

- update irix, svr4, svr4_32, linux and osf1 emulations to support
this information. (freebsd could be done, but that it's best left
as part of the full-update of compat/freebsd.)


this addresses PR 7897. it also gives correct memory usage values,
which have never been entirely correct (since mmap), and have been
very incorrect since jemalloc() was enabled.

tested on i386 and sparc64, build tested on several other platforms.

thanks to many folks for feedback and testing but most espcially
chuq and yamt for critical suggestions that lead to this patch not
having a special ugliness i wasn't happy with anyway :-)

ansify function definitions

branches: 1.14.4;
PR port-amd64/39964 modules/compat_linux: missing symbols on amd64

branches: 1.13.2;
populate init_thread_area.

branches: 1.12.2;
fix include order; machdep needs to be first for LINUX_NPTL to be defined.

Add preliminary tls support for i386. Does not work yet. From FreeBSD.

branches: 1.10.16; 1.10.20; 1.10.26;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.9.6; 1.9.18; 1.9.20; 1.9.24;
Remove more duplicate headers.
Patch by Slava Semushin <slava.semushin@gmail.com>

Again, this was tested by comparing obj files from a pristine and a patched
source tree against an i386/ALL kernel, and also for src/sbin/fsck_ffs,
src/sbin/fsdb and src/usr.sbin/makefs. Only changes in assert() line numbers
were detected in 'objdump -d' output.

branches: 1.8.4;
Use the LWP cached credentials where sane.

include kauth.h for kauth_cred_getgid.

integrate kauth.

branches: 1.5.4; 1.5.6; 1.5.8; 1.5.10; 1.5.12;
PR/32303: Nicolas Joly: Fix -current amd64 kernel compilation failure with
options COMPAT_LINUX

proc to lwp change

merge ktrace-lwp.

branches: 1.2.2; 1.2.8;
Define linux_usertrap function, and set it in struct emul. For all
but amd64, it just returns 0, doing nothing.

For amd64, it implements vsyscalls through cheating: if the faulting
address is in the vsyscall area (which is statically known on Linux/amd64),
and the intruction pointer is too, it must have been a vsyscall. In that
case, retrieve the return address from the user stack, fix up %rip and
%rsp, and just execute the normal system call. It will return as if
the vsyscall has been executed.

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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.5.64;
Add a few missing open(2) flags (LINUX_O_*). Fix alpha wrong values.

branches: 1.4.18; 1.4.32;
define LINUX_O_CLOEXEC.
sort definitions by value.
consistently use hex instead of octal for the values.

implement O_DIRECTORY as standardized in POSIX-2008,
for both native and linux emulations.
this fixes the rest of PR 43695.

branches: 1.2.74; 1.2.96; 1.2.98;
merge ktrace-lwp.

branches: 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.2.200;
merge ktrace-lwp.

branches: 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.61.10;
Use __SIGTRAMP_SIGCODE_VERSION rather than hard-coding 0.

sys/compat: Memset zero before copyout.

Just in case of uninitialized padding which would lead to kernel
stack disclosure. If the compiler can prove the memset redundant
then it can optimize it away; otherwise better safe than sorry.

Remove printf.

branches: 1.58.2;
Rename

fpu_save_area_clear -> fpu_clear
fpu_save_area_reset -> fpu_sigreset

Clearer, and reduces a future diff. No real functional change.

Fix a tiny race in setregs and linux_setregs. Between the moment we set
pcb_flags to zero, and the moment cpu_segregs64_zero resets pcb_gs, we may
be preempted.

If this happens, and if the calling LWP was a 32bit thread, when switching
back to that LWP, the context switcher sees that PCB_COMPAT32 is not set in
pcb_flags and tries to perform a 64bit context switch; but pcb_gs contains
a 32bit GDT descriptor, and not a 64bit GS.base value. The wrmsr therefore
faults because the value is non-canonical, and this fault is fatal.

Rearrange the code so that the update of pcb_flags and pcb_gs/pcb_fs is non
interruptible. This fixes the problem, tested with a reproducer (which
therefore doesn't work anymore).

Likely fixes PR/53993.

branches: 1.56.4;
Use the default %cs, and mask the other segregs.

Include opt_user_ldt.h when needed.

Always mask the 16 bits of the segregs in the trapframe. We don't zero-
extend the uint64_t's when building it, so we're leaking 48 bits of kernel
stack to userland.

Having said that, it appears that I unintentionally fixed most of this
issue in locore.S::rev1.127 - by building the frame with interrupts
disabled, we are implicitly guaranteeing that the structure doesn't get
overwritten by the kernel. Which means, we are leaking to userland data
that comes from userland anyway.

(still other places with this issue, but I'll fix them differently)

Use two separate functions: cpu_segregs32_zero and cpu_segregs64_zero. The
way segment registers work on amd64 will diverge between 32bit and 64bit
LWPs.

Don't forget to clean l_md.md_flags, otherwise there may be MDL_COMPAT32,
in which case the kernel would always use iret (slower).

branches: 1.51.4; 1.51.6;
Make sure %rip is in userland. This is harmless, since the return to
userland is made with iret instead of sysret in this path. While here, use
size_t.

Don't let userland choose %rip. This is the Intel Sysret vulnerability
again.

Missing pmap_ldt_cleanup.

branches: 1.48.4; 1.48.6; 1.48.8; 1.48.10; 1.48.12; 1.48.14;
Don't rely on pcb.h including x86/include/sysarch.h

Remove all references to MDL_USEDFPU and deferred fpu initialisation.
The cost of zeroing the save area on exec is minimal.
This stops the FP registers of a random process being used the first
time an lwp uses the fpu.
sendsig_siginfo() and get_mcontext() now unconditionally copy the FP
registers.
I'll remove the double-copy for signal handlers soon.
get_mcontext() might have been leaking kernel memory to userspace - and
may still do so if i386_use_fxsave is false (short copies).

Move sys/arch/amd64/amd64/fpu.c and sys/arch/amd64/include/fpu.h
into sys/arch/x86 in preparation for using the same code for i386.

Convert the amd64 build to use x86/cpu_extended_state.h so that the fpu
definitions match those of i386.
Mostly just structure and field renames, in addition:
1) process_xmm_to_s87() and process_s87_to_xmm() moved into
x86/convert_xmm_s87.c so they can be used by amd64's netbsd32 code.
2) The linux signal code simplified to use a structure copy for ths fxsave
data - it matches the hardware definition and won't change.

Remove __HAVE_PROCESS_XFPREGS and add the extra parameter for the size
of the fp save area to all the process_read_fpregs() and
process_write_fpregs() functions.
None of the functions have been modified to use the new parameters.
The size is set for all the writes, but some of the arch-specific reads
just pass NULL.
The amd64 (and i386) need variable sized fp register save areas in order
to support AVX and other enhanced register areas.
These functions are rarely called - so the extra argument won't matter.

revert fpu/pcu changes until we figure out what's wrong; they cause random
freezes

initialize %ds to something valid to help ptrace().

Use the MI "pcu" framework for bookkeeping of npx/fpu states on x86.
This reduces the amount of MD code enormously, and makes it easier
to implement support for newer CPU features which require more fpu
state, or for fpu usage by the kernel.
For access to FPU state across CPUs, an xcall kthread is used now
rather than a dedicated IPI.
No user visible changes intended.

branches: 1.40.2; 1.40.4;
The MDP_USEDFPU (amd64 and sh3) and MDP_SSTEP (sh3) are lwp flags not
process ones, rename to MDL_xxx.

branches: 1.39.6; 1.39.10; 1.39.12;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.38.8;
many changes for COMPAT_LINUX:
- update the linux syscall table for each platform.
- support new-style (NPTL) linux pthreads on all platforms.
clone() with CLONE_THREAD uses 1 process with many LWPs
instead of separate processes.
- move the contents of sys__lwp_setprivate() into a new
lwp_setprivate() and use that everywhere.
- update linux_release[] and linux32_release[] to "2.6.18".
- adjust placement of emul fork/exec/exit hooks as needed
and adjust other emul code to match.
- convert all struct emul definitions to use named initializers.
- change the pid allocator to allow multiple pids to refer to the same proc.
- remove a few fields from struct proc that are no longer needed.
- disable the non-functional "vdso" code in linux32/amd64,
glibc works fine without it.
- fix a race in the futex code where we could miss a wakeup after
a requeue operation.
- redo futex locking to be a little more efficient.

branches: 1.37.2; 1.37.4;
Use lwp_getpcb() in compat code, clean from struct user.

Add native to linux siginfo si_status translation, used on i386 and
amd64.

bzero -> memset

branches: 1.34.2; 1.34.8;
catch up with i386 changes.

Add native to linux siginfo si_code translation, mostly for negative
values. Adjust amd64 and i386 accordingly, not sure about aother archs
i can't test.

Define a PSL_CLEARSIG macro for the psl flags to be cleared on signal delivery
and use it everywhere.

linux_sys_rt_sigreturn: properly restore stack flags, pointed out by
Juan RP and modified by myself. ok christos@

branches: 1.30.4;
Pull in machine/cpufunc.h for wrmsr definition.

branches: 1.29.2; 1.29.4;
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.

branches: 1.28.6; 1.28.8;
Use the new names (_REG_RFLAGS and _REG_RSP) for the indexes of __gregs[]
which match the names of in the trapframe and .S code.

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.

branches: 1.26.4;
ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

branches: 1.25.2; 1.25.4;
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.

branches: 1.24.2;
fxsave() is a function, don't re-use the name.

branches: 1.23.6; 1.23.8; 1.23.10;
Fix restart of interrupted system calls.

- Make linux_sys_rt_sigreturn() return EJUSTRETURN on success.
- Add missing rax to linux_sigcontext structure; and save/restore
its value like other members in linux_sendsig()/linux_sys_rt_sigreturn().

With valuable help from manu.

rename si_sigval -> si_value to match POSIX RTS.

Add ptmx fakedevice hack for amd64
Fix a bug in ioctl handling

branches: 1.20.2; 1.20.4;
more caddr_t lossage.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

Change the process/lwp flags seen by userland via sysctl back to the
P_*/L_* naming convention, and rename the in-kernel flags to avoid
conflict. (P_ -> PK_, L_ -> LW_ ). Add back the (now unused) LSDEAD
constant.

Restores source compatibility with pre-newlock2 tools like ps or top.

Reviewed by Andrew Doran.

branches: 1.17.2;
Fix Linux compat on amd64.

Merge newlock2 to head.

branches: 1.15.2;
Proprely convert devices on amd64

branches: 1.14.2; 1.14.4;
1) Complete Linux exit_group() emulation
Members of the thread group must die without reporting to the parent and
without going to zombie stage. We do that by reparenting to init before
catching a SIGKILL. The parent will not see the child death.

The thread group leader must report the exit status, even if it exits
because of another thread calling exit_group(). We do that by storing the
exit status in struct linux_emuldata_shared, and the exit hook has the
duty of setting struct proc's p_xstat for the thread group leader.

2) For exit/fork/exec hooks, move the NPTL specific code to separate functions
that are shared between COMPAT_LINUX and COMPAT_LINUX32

3) Fix LINUX_CLONE_PARENT_SETTID semantics

branches: 1.13.4; 1.13.8;
PR/32303: Nicolas Joly: Fix -current amd64 kernel compilation failure with
options COMPAT_LINUX

merge ktrace-lwp.

branches: 1.11.2;
Instead of ifdef'ing __amd64__ all the Linux NPTL stuff, introduce an
ifdef LINUX_NPTL.
Also implement SETTLS flag to Linux clone()

build fix

branches: 1.9.2;
More accurate SIGCHLD code and status for siginfo

Fix siginfo to return the right child's status.

Implent CLONE_PARENT_SETTID, CLONE_CHILD_CLEARTID, and CLONE_CHILD_SETTID
options to clone(). This makes fork() work on amd64.

clone() prototype has changed and the changes is probably revelant on some
other arches.

sigreturn doesn't take arguments. Instead, find out where the signal
frame is from the stack pointer in the frame frame.

Also, don't forget to copy %rip back in.

Use a modified buildcontext function for Linux signals. It doesn't set
the unused segment registers, it just uses the already used values.

Define linux_usertrap function, and set it in struct emul. For all
but amd64, it just returns 0, doing nothing.

For amd64, it implements vsyscalls through cheating: if the faulting
address is in the vsyscall area (which is statically known on Linux/amd64),
and the intruction pointer is too, it must have been a vsyscall. In that
case, retrieve the return address from the user stack, fix up %rip and
%rsp, and just execute the normal system call. It will return as if
the vsyscall has been executed.

Add support for Linux SA_RESTORER on amd64.

Make the arch_prctl system call use the saved %gs and %fs mechanism.

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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.14.66;
Convert the amd64 build to use x86/cpu_extended_state.h so that the fpu
definitions match those of i386.
Mostly just structure and field renames, in addition:
1) process_xmm_to_s87() and process_s87_to_xmm() moved into
x86/convert_xmm_s87.c so they can be used by amd64's netbsd32 code.
2) The linux signal code simplified to use a structure copy for ths fxsave
data - it matches the hardware definition and won't change.

branches: 1.13.8; 1.13.18; 1.13.22;
many changes for COMPAT_LINUX:
- update the linux syscall table for each platform.
- support new-style (NPTL) linux pthreads on all platforms.
clone() with CLONE_THREAD uses 1 process with many LWPs
instead of separate processes.
- move the contents of sys__lwp_setprivate() into a new
lwp_setprivate() and use that everywhere.
- update linux_release[] and linux32_release[] to "2.6.18".
- adjust placement of emul fork/exec/exit hooks as needed
and adjust other emul code to match.
- convert all struct emul definitions to use named initializers.
- change the pid allocator to allow multiple pids to refer to the same proc.
- remove a few fields from struct proc that are no longer needed.
- disable the non-functional "vdso" code in linux32/amd64,
glibc works fine without it.
- fix a race in the futex code where we could miss a wakeup after
a requeue operation.
- redo futex locking to be a little more efficient.

branches: 1.12.2; 1.12.22; 1.12.24;
Rename LINUX_SHMCTL_FORCEIPC64 define to LINUX_IPC_FORCE64.

branches: 1.11.6; 1.11.8;
Make shmctl + {IPC,SHM}_STAT work an amd64, by forcing use of IPC_64.
Following the Linux kernel behaviour.

Remove all the __P

branches: 1.9.6; 1.9.8; 1.9.14; 1.9.16;
Fix restart of interrupted system calls.

- Make linux_sys_rt_sigreturn() return EJUSTRETURN on success.
- Add missing rax to linux_sigcontext structure; and save/restore
its value like other members in linux_sendsig()/linux_sys_rt_sigreturn().

With valuable help from manu.

Linux's uname should return x86_64 as machine_arch

Add ptmx fakedevice hack for amd64
Fix a bug in ioctl handling

Fix compat linux statfs/fstatfs syscalls on amd64.
- Do not use statfs64/fstatfs64 as they have an extra size argument.
- Add full 64bit linux struct statfs support.

ok by manu

branches: 1.5.24; 1.5.26; 1.5.30; 1.5.32;
- Add Linux tkill and tgkill (partial emulation).
- Fix getrlimit on amd64

branches: 1.4.2; 1.4.4;
Instead of ifdef'ing __amd64__ all the Linux NPTL stuff, introduce an
ifdef LINUX_NPTL.
Also implement SETTLS flag to Linux clone()

Fix machine name returned by uname on Linux

branches: 1.2.2;
Define linux_usertrap function, and set it in struct emul. For all
but amd64, it just returns 0, doing nothing.

For amd64, it implements vsyscalls through cheating: if the faulting
address is in the vsyscall area (which is statically known on Linux/amd64),
and the intruction pointer is too, it must have been a vsyscall. In that
case, retrieve the return address from the user stack, fix up %rip and
%rsp, and just execute the normal system call. It will return as if
the vsyscall has been executed.

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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.3.54;
Support Linux MAP_LOCKED mmap flag.

branches: 1.2.120; 1.2.140;
merge ktrace-lwp.

branches: 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.2.200;
merge ktrace-lwp.

branches: 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.2.200;
merge ktrace-lwp.

branches: 1.1.8;
Add support for Linux SA_RESTORER on amd64.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.7.88;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.6.12;
Various compat linux siginfo fixes.
- alpha: add missing _uid member to SIGCHLD structure.
- amd64: add missing typedef, and fix padding size.
- arm: add missing linux_siginfo definition.

Use correct linux_clock_t type for _stime, not native clock_t.

branches: 1.4.4;
Move si_code definitions from MD to MI linux_siginfo.h, all archs
(except mips for 3 values) are identical.
While here, remove unused/unneeded LINUX__SI_CODE macro. Only the
lower 16-bits are used for userland si_code.

branches: 1.3.2;
Remove LINUX_SI_xxx from MI siginfo.h, that should not have been
committed. Rather add them to amd64 MD header.
Fix compilation failures on non x86 archs.

branches: 1.2.74; 1.2.80;
merge ktrace-lwp.

branches: 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.5.54;
PR/50428: Rin Okuyama: support SA_RESTORER flag for rt_sigaction(2) in the
ports that support it.

branches: 1.4.120; 1.4.140;
merge ktrace-lwp.

branches: 1.3.6;
MINSIGSTKSZ on linux is different depending on the platform and usually
smaller than ours.

branches: 1.2.2;
Add support for Linux SA_RESTORER on amd64.

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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.3.66;
Update linux socket socket options (SO_*). Add common version to its
own file (linux_socket_generic.h); use it for all but alpha and mips.

branches: 1.2.110; 1.2.120; 1.2.126;
merge ktrace-lwp.

branches: 1.1.8;
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.

Switch Linux futex emulation to native ucas_int(), remove unecessary
futex-specific assembler routines.

Fixes PR/40490. Reviewed by <ad>.

branches: 1.2.4; 1.2.6; 1.2.8;
PR port-amd64/39964 modules/compat_linux: missing symbols on amd64

branches: 1.1.2; 1.1.4;
catch up with i386 changes.

regen

regen

regen

regen

regen

branches: 1.82.2;
regen

regen

regen

regen

regen

Regen

regen

Regen for preadv(2) / pwritev(2).

Regen for eventfd.

Regen for timerfd.

Regen for POSIX timer syscalls.

branches: 1.71.2;
Regen for native futex calls.

regen

Regen

branches: 1.68.8; 1.68.10;
regen

branches: 1.67.4;
regen

add sendmmsg and recvmmsg

regen

regen all

branches: 1.63.2;
regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.59.2;
Regen

regen

Regen for write(2) size argument fix.

regen

branches: 1.55.2;
Regen for ppoll signature fix

branches: 1.54.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.48.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.44.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.42.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.41.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regen: Argh:
cat: rumphdr.types: No such file or directory
rm: rumphdr.types: No such file or directory
*** Error code 1

branches: 1.38.2;
regen

branches: 1.37.2; 1.37.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for struct linux_stat64 fix.

Regen for sendmsg/recvmsg definitions update.

Regen for rt_queueinfo(2) update.

branches: 1.32.2;
Regen for wait4 update.

Rengen for compat50 update.

Regen to prove I didn't screw up the conversion: purely RCSID changes.

regen for #include "opt_compat_netbsd.h"

merge christos-time_t

branches: 1.27.4;
Regen.

Regen for futex timeout argument cleanup/fix.

Regen for nanosleep(2) fix.

branches: 1.24.2; 1.24.4;
regen.

branches: 1.23.4; 1.23.6; 1.23.10;
Regen for linux_sys_msync removal.

branches: 1.22.6;
Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.19.2; 1.19.6;
Regen, for syscalls cleanup.

branches: 1.18.10; 1.18.12; 1.18.16; 1.18.18;
Regen (statfs/fstatfs fixes).

branches: 1.17.2; 1.17.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.16.6; 1.16.8;
Regen.

Regen

The return value for Linux shmat on amd64 does not suffer the same horrible
hack as on i386.

Regen

- Complete exit_group() implementation. We now maintain a list of Linux
threads in a processes and kill them properly. The code is a bit too
complicated, but I could not find a simplier way of dealing with it

- Change getpid() and getppid() semantics to match what Linux does,
and implement gettid(). In the Linux kernel, threads are implemnted
as plain old processes. A thread group is just a set of processes,
with the parent called leader. Thread ID, which are returned by gettid(),
are just the PID of the plain old processes, and getpid() returns the
PID of the thread group leader.

- Remove struct linux32_emuldata. COMPAT_LINUX32 uses a lot of COMPAT_LINUX
code, where a struct linux_emuldata is assumed. By having distinct emuldata
structure with different sizes and layouts, we caused kernel memory
corruptions.

- Fix setprioriry() and getpriority()

Thanks to Nicolas Joly for tracking down the problem and providing me the
hardware to fix them.

branches: 1.11.2;
regen

branches: 1.10.2; 1.10.8;
Add initial (but unfinished) COMPAT_LINUX32 for amd64. This is good enough so
that the i386 license manager part of amd64 version of Fluent works.

While I'm here, add SysV IPC to COMPAT_LINUX/amd64

branches: 1.9.2; 1.9.4; 1.9.6;
- Add Linux tkill and tgkill (partial emulation).
- Fix getrlimit on amd64

branches: 1.8.2; 1.8.4;
regen

regen

Regen.

branches: 1.5.2;
Implent CLONE_PARENT_SETTID, CLONE_CHILD_CLEARTID, and CLONE_CHILD_SETTID
options to clone(). This makes fork() work on amd64.

clone() prototype has changed and the changes is probably revelant on some
other arches.

Regen after sigreturn argument change.

Regen.

Regen.

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.

regen

regen

regen

regen

regen

branches: 1.82.2;
regen

regen

regen

regen

regen

Regen

regen

Regen for preadv(2) / pwritev(2).

Regen for eventfd.

Regen for timerfd.

Regen for POSIX timer syscalls.

branches: 1.71.2;
Regen for native futex calls.

regen

Regen

branches: 1.68.8; 1.68.10;
regen

branches: 1.67.4;
regen

add sendmmsg and recvmmsg

regen

regen all

branches: 1.63.2;
regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.59.2;
Regen

regen

Regen for write(2) size argument fix.

regen

branches: 1.55.2;
Regen for ppoll signature fix

branches: 1.54.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.48.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.44.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.42.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.41.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regen: Argh:
cat: rumphdr.types: No such file or directory
rm: rumphdr.types: No such file or directory
*** Error code 1

branches: 1.38.2;
regen

branches: 1.37.2; 1.37.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for struct linux_stat64 fix.

Regen for sendmsg/recvmsg definitions update.

Regen for rt_queueinfo(2) update.

branches: 1.32.2;
Regen for wait4 update.

Rengen for compat50 update.

Regen to prove I didn't screw up the conversion: purely RCSID changes.

regen for #include "opt_compat_netbsd.h"

merge christos-time_t

branches: 1.27.4;
Regen.

Regen for futex timeout argument cleanup/fix.

Regen for nanosleep(2) fix.

branches: 1.24.2; 1.24.4;
regen.

branches: 1.23.4; 1.23.6; 1.23.10;
Regen for linux_sys_msync removal.

branches: 1.22.6;
Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.19.2; 1.19.6;
Regen, for syscalls cleanup.

branches: 1.18.10; 1.18.12; 1.18.16; 1.18.18;
Regen (statfs/fstatfs fixes).

branches: 1.17.2; 1.17.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.16.6; 1.16.8;
Regen.

Regen

The return value for Linux shmat on amd64 does not suffer the same horrible
hack as on i386.

Regen

- Complete exit_group() implementation. We now maintain a list of Linux
threads in a processes and kill them properly. The code is a bit too
complicated, but I could not find a simplier way of dealing with it

- Change getpid() and getppid() semantics to match what Linux does,
and implement gettid(). In the Linux kernel, threads are implemnted
as plain old processes. A thread group is just a set of processes,
with the parent called leader. Thread ID, which are returned by gettid(),
are just the PID of the plain old processes, and getpid() returns the
PID of the thread group leader.

- Remove struct linux32_emuldata. COMPAT_LINUX32 uses a lot of COMPAT_LINUX
code, where a struct linux_emuldata is assumed. By having distinct emuldata
structure with different sizes and layouts, we caused kernel memory
corruptions.

- Fix setprioriry() and getpriority()

Thanks to Nicolas Joly for tracking down the problem and providing me the
hardware to fix them.

branches: 1.11.2;
regen

branches: 1.10.2; 1.10.8;
Add initial (but unfinished) COMPAT_LINUX32 for amd64. This is good enough so
that the i386 license manager part of amd64 version of Fluent works.

While I'm here, add SysV IPC to COMPAT_LINUX/amd64

branches: 1.9.2; 1.9.4; 1.9.6;
- Add Linux tkill and tgkill (partial emulation).
- Fix getrlimit on amd64

branches: 1.8.2; 1.8.4;
regen

regen

Regen.

branches: 1.5.2;
Implent CLONE_PARENT_SETTID, CLONE_CHILD_CLEARTID, and CLONE_CHILD_SETTID
options to clone(). This makes fork() work on amd64.

clone() prototype has changed and the changes is probably revelant on some
other arches.

Regen after sigreturn argument change.

Regen.

Regen.

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.

regen

regen

regen

regen

regen

branches: 1.82.2;
regen

regen

regen

regen

regen

Regen

regen

Regen for preadv(2) / pwritev(2).

Regen for eventfd.

Regen for timerfd.

Regen for POSIX timer syscalls.

branches: 1.71.2;
Regen for native futex calls.

regen

Regen

branches: 1.68.8; 1.68.10;
regen

branches: 1.67.4;
regen

add sendmmsg and recvmmsg

regen

regen all

branches: 1.63.2;
regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.59.2;
Regen

regen

Regen for write(2) size argument fix.

regen

branches: 1.55.2;
Regen for ppoll signature fix

branches: 1.54.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.48.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.44.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.42.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.41.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regen: Argh:
cat: rumphdr.types: No such file or directory
rm: rumphdr.types: No such file or directory
*** Error code 1

branches: 1.38.2;
regen

branches: 1.37.2; 1.37.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for struct linux_stat64 fix.

Regen for sendmsg/recvmsg definitions update.

Regen for rt_queueinfo(2) update.

branches: 1.32.2;
Regen for wait4 update.

Rengen for compat50 update.

Regen to prove I didn't screw up the conversion: purely RCSID changes.

regen for #include "opt_compat_netbsd.h"

merge christos-time_t

branches: 1.27.4;
Regen.

Regen for futex timeout argument cleanup/fix.

Regen for nanosleep(2) fix.

branches: 1.24.2; 1.24.4;
regen.

branches: 1.23.4; 1.23.6; 1.23.10;
Regen for linux_sys_msync removal.

branches: 1.22.6;
Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.19.2; 1.19.6;
Regen, for syscalls cleanup.

branches: 1.18.10; 1.18.12; 1.18.16; 1.18.18;
Regen (statfs/fstatfs fixes).

branches: 1.17.2; 1.17.6; 1.17.8;
Merge newlock2 to head.

branches: 1.16.2; 1.16.6;
Regen.

Regen

The return value for Linux shmat on amd64 does not suffer the same horrible
hack as on i386.

Regen

- Complete exit_group() implementation. We now maintain a list of Linux
threads in a processes and kill them properly. The code is a bit too
complicated, but I could not find a simplier way of dealing with it

- Change getpid() and getppid() semantics to match what Linux does,
and implement gettid(). In the Linux kernel, threads are implemnted
as plain old processes. A thread group is just a set of processes,
with the parent called leader. Thread ID, which are returned by gettid(),
are just the PID of the plain old processes, and getpid() returns the
PID of the thread group leader.

- Remove struct linux32_emuldata. COMPAT_LINUX32 uses a lot of COMPAT_LINUX
code, where a struct linux_emuldata is assumed. By having distinct emuldata
structure with different sizes and layouts, we caused kernel memory
corruptions.

- Fix setprioriry() and getpriority()

Thanks to Nicolas Joly for tracking down the problem and providing me the
hardware to fix them.

branches: 1.11.2;
regen

branches: 1.10.2; 1.10.8;
Add initial (but unfinished) COMPAT_LINUX32 for amd64. This is good enough so
that the i386 license manager part of amd64 version of Fluent works.

While I'm here, add SysV IPC to COMPAT_LINUX/amd64

branches: 1.9.2; 1.9.4; 1.9.6;
- Add Linux tkill and tgkill (partial emulation).
- Fix getrlimit on amd64

branches: 1.8.2; 1.8.4;
regen

regen

Regen.

branches: 1.5.2;
Implent CLONE_PARENT_SETTID, CLONE_CHILD_CLEARTID, and CLONE_CHILD_SETTID
options to clone(). This makes fork() work on amd64.

clone() prototype has changed and the changes is probably revelant on some
other arches.

Regen after sigreturn argument change.

Regen.

Regen.

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.

regen

regen

regen

regen

regen

branches: 1.82.2;
regen

regen

regen

regen

regen

Regen

regen

Regen for preadv(2) / pwritev(2).

Regen for eventfd.

Regen for timerfd.

Regen for POSIX timer syscalls.

branches: 1.71.2;
Regen for native futex calls.

regen

Regen

branches: 1.68.8; 1.68.10;
regen

branches: 1.67.4;
regen

add sendmmsg and recvmmsg

regen

regen all

branches: 1.63.2;
regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.59.2;
Regen

regen

Regen for write(2) size argument fix.

regen

branches: 1.55.2;
Regen for ppoll signature fix

branches: 1.54.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.48.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.44.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.42.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.41.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regen: Argh:
cat: rumphdr.types: No such file or directory
rm: rumphdr.types: No such file or directory
*** Error code 1

branches: 1.38.2;
regen

branches: 1.37.2; 1.37.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for struct linux_stat64 fix.

Regen for sendmsg/recvmsg definitions update.

Regen for rt_queueinfo(2) update.

branches: 1.32.2;
Regen for wait4 update.

Rengen for compat50 update.

Regen to prove I didn't screw up the conversion: purely RCSID changes.

regen for #include "opt_compat_netbsd.h"

merge christos-time_t

branches: 1.27.4;
Regen.

Regen for futex timeout argument cleanup/fix.

Regen for nanosleep(2) fix.

branches: 1.24.2; 1.24.4;
regen.

branches: 1.23.4; 1.23.6; 1.23.10;
Regen for linux_sys_msync removal.

branches: 1.22.6;
Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.19.2; 1.19.6;
Regen, for syscalls cleanup.

branches: 1.18.10; 1.18.12; 1.18.16; 1.18.18;
Regen (statfs/fstatfs fixes).

branches: 1.17.2; 1.17.6; 1.17.8;
Merge newlock2 to head.

branches: 1.16.2; 1.16.6;
Regen.

Regen

The return value for Linux shmat on amd64 does not suffer the same horrible
hack as on i386.

Regen

- Complete exit_group() implementation. We now maintain a list of Linux
threads in a processes and kill them properly. The code is a bit too
complicated, but I could not find a simplier way of dealing with it

- Change getpid() and getppid() semantics to match what Linux does,
and implement gettid(). In the Linux kernel, threads are implemnted
as plain old processes. A thread group is just a set of processes,
with the parent called leader. Thread ID, which are returned by gettid(),
are just the PID of the plain old processes, and getpid() returns the
PID of the thread group leader.

- Remove struct linux32_emuldata. COMPAT_LINUX32 uses a lot of COMPAT_LINUX
code, where a struct linux_emuldata is assumed. By having distinct emuldata
structure with different sizes and layouts, we caused kernel memory
corruptions.

- Fix setprioriry() and getpriority()

Thanks to Nicolas Joly for tracking down the problem and providing me the
hardware to fix them.

branches: 1.11.2;
regen

branches: 1.10.2; 1.10.8;
Add initial (but unfinished) COMPAT_LINUX32 for amd64. This is good enough so
that the i386 license manager part of amd64 version of Fluent works.

While I'm here, add SysV IPC to COMPAT_LINUX/amd64

branches: 1.9.2; 1.9.4; 1.9.6;
- Add Linux tkill and tgkill (partial emulation).
- Fix getrlimit on amd64

branches: 1.8.2; 1.8.4;
regen

regen

Regen.

branches: 1.5.2;
Implent CLONE_PARENT_SETTID, CLONE_CHILD_CLEARTID, and CLONE_CHILD_SETTID
options to clone(). This makes fork() work on amd64.

clone() prototype has changed and the changes is probably revelant on some
other arches.

Regen after sigreturn argument change.

Regen.

Regen.

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.

regen

regen

regen

regen

regen

branches: 1.26.2;
regen

regen

regen

regen

regen

Regen

regen

Regen for preadv(2) / pwritev(2).

Regen for eventfd.

Regen for timerfd.

Regen for POSIX timer syscalls.

branches: 1.15.2;
Regen for native futex calls.

regen

Regen

branches: 1.12.8; 1.12.10; 1.12.12;
regen

branches: 1.11.4;
regen

add sendmmsg and recvmmsg

regen

regen all

branches: 1.7.2;
regen

Regen (something apparently went wrong in previous)

Regen for readlink/readlinkat signatures.

branches: 1.4.2;
Regen

regen

Regen for write(2) size argument fix.

branches: 1.1.2;
regen

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.3.120;
Move amd64 MD termois types definitions from linux_termios.h to linux_types.h
following other archs.

branches: 1.2.70; 1.2.74; 1.2.76; 1.2.78;
merge ktrace-lwp.

branches: 1.1.8;
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.

sys/compat/linux/arch: Nix trailing whitespace.

No functional change intended.

branches: 1.6.102;
merge christos-time_t

branches: 1.5.4; 1.5.10;
Move amd64 MD termois types definitions from linux_termios.h to linux_types.h
following other archs.

branches: 1.4.6; 1.4.10; 1.4.12; 1.4.14;
Convert many of the uses of __attribute__ to equivalent
__packed, __unused and __dead macros from cdefs.h

branches: 1.3.10; 1.3.16; 1.3.18; 1.3.22;
Enable stat/stat64 nsec time support, for amd64 compat linux/linux32.

branches: 1.2.26; 1.2.30; 1.2.32;
merge ktrace-lwp.

branches: 1.1.2; 1.1.8;
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.

Add systrace output file

branches: 1.2.120; 1.2.140;
merge ktrace-lwp.

branches: 1.1.8;
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.

s/SYS_MAXSYSARGS/LINUX_SYS_MAXSYSARGS/

Add prctl(2) lwp_{g,s}etname for compat linux (Kevin Bloom)

PR/59722: Ricardo Branco: linux: Add support for semtimedop(2)

Linux GSoC-2024: renameat2, clone3, sync_file_range, syncfs (Shivraj Jamgade)

Add linux POSIX message queue support (Ricardo Branco)

branches: 1.73.2;
From gsoc 2024: Implement faccessat2 and getcpu (Shivraz)

Add inotify* syscalls GSoC 2023 (Theodore Preduta)

Add linux waitid(2) from GSoC 2023 (Theodore Preduta)

Add/fix statx, readahead, close_range. From GSoC 2023 by Theodore Preduta

Add epoll(2) from Theodore Preduta as part of GSoC 2023

Add memfd_create(2) from GSoC 2023 by Theodore Preduta