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: 1.1.2; 1.1.4; 1.1.158; 1.1.168; 1.1.174; 1.1.184;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Update to deal with options PTRACE

branches: 1.3.26; 1.3.40; 1.3.44;
bring the reverse signal mapping array into linux_signo.c

branches: 1.2.2; 1.2.4;
Add support for the ARM-specific syscalls in ARMLinux. These are invoked
by SWI numbers above 0x9f0000, but we re-map them down to somewhere just
after the end of the usual syscall range, since NetBSD doesn't handle
sparse syscall arrays well.

The only syscall I've actually implemented in this range is cacheflush(),
which was previously being mapped to fork(), causing ... interesting results.

Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

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.

Fix path for fadvise64 files.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

branches: 1.10.2;
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: 1.9.2;
Nuke fs_lfs.h included for unknown reasons (if there was a reason
other than "accident", i hereby declare that reason invalid)

branches: 1.8.6;
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: 1.7.6; 1.7.10; 1.7.12; 1.7.16; 1.7.18;
Extract the fcntl64() suppoort from linux_file64.c into linux_fcntl64.c
Unravel some of the knots that caused linux_file64.c to be compiled twice
for an amd64 kernel (once for linux and once for linux32) with different
parts being skipped each time.

compat linux (and linux32) uid16 functions cleanup and fixes.

- Move uid16 functions to their own file linux_uid16.c, included by
needed archs (arm, i386 and m68k).
- Add new MI types linux_{u,g}id16_t.
- Add macros to handle linux_uid16_t and uid_t conversions.
- Add linux_sys_getres{uid,gid}16 syscalls, to fix an overflow with
bad sizes given to copyout when linux_sys_getres{uid,gid} are used.
- Update arm syscall table to use more uid16 functions.

branches: 1.5.2; 1.5.8; 1.5.14;
Changes to make ktrace LKM friendly and reduce ifdef KTRACE. Proposed
on tech-kern.

branches: 1.4.6; 1.4.14; 1.4.18;
Merge newlock2 to head.

branches: 1.3.18; 1.3.48;
Merge the nathanw_sa branch.

branches: 1.2.2;
linux_sys_break() is marked OBSOL, so don't include it.

branches: 1.1.2;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

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: 1.6.34; 1.6.44; 1.6.50;
Remove clause 3 and 4 from TNF licenses

branches: 1.5.70; 1.5.72; 1.5.74;
merge ktrace-lwp.

nuke trailing whitespace

branches: 1.3.2; 1.3.4; 1.3.20; 1.3.28; 1.3.30;
Fix unterminated #ifdef.

Add extra error codes from Linux.

Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

The internal architecture name of golang is "arm" or "arm64", which has
different naming conventions from netbsd's machine[] or machine_arch[]
("earmv7", "aarch64", etc.) and cannot be used as is.
Instead, use define LINUX_GO_RT0_SIGNATURE_ARCH{32,64}.

- 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.

es_arglen is now in units of bytes, update the emulations accordingly.

branches: 1.9.6; 1.9.10; 1.9.14;
account for the 16 bytes of AT_RANDOM data in the stack setup. fixes PR 48518.
use cprng_strong32() instead of random(). add AT_RANDOM support for linux32.

branches: 1.8.34; 1.8.44; 1.8.50;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.70; 1.7.72; 1.7.74;
merge ktrace-lwp.

remove the args from the macro.

- GC all the setup_stack functions
- add one for linux/i386

branches: 1.4.2;
Do the syscall_plain/syscall_fancy dance on ARM. Shaves a fair number
of cycles off the syscall overhead.

Since all COMPAT_LINUX platforms now support __HAVE_SYSCALL_INTERN,
garbage-collect the LINUX_SYSCALL_FUNCTION stuff.

add generic linux compat ELF copyargs function

this gives:
* linux sysconf(_SC_CLK_TCK) gives correct value for linux binaries (hz)
even if hz != 100
* glibc gets proper information on real/effective uid and enables
secure mode for suid binaries

g/c LINUX_COPYARGS_FUNCTION, replaced by linux ELF copyargs function
g/c alpha-specific linux ELF copyargs function and linux ELF defines

branches: 1.2.2; 1.2.4;
On platforms that don't __HAVE_SYSCALL_INTERN, define LINUX_SYSCALL_FUNCTION
to be the value of emul_linux.e_syscall that we want. This allows it to differ
between machines, so I can have a separate linux_syscall() on arm.

Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

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: 1.2.20; 1.2.22;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.2; 1.1.4; 1.1.118; 1.1.120; 1.1.122;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Remove clause 3 and 4 from TNF licenses

branches: 1.1.2; 1.1.4; 1.1.118; 1.1.120; 1.1.122;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

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.

G/C some old code that was for acorn26

branches: 1.32.12; 1.32.24; 1.32.32;
Do not uselessly include <sys/malloc.h>.

branches: 1.31.4;
Use <arm/locore.h>

branches: 1.30.2; 1.30.4;
Rename process_frame to lwp_trapframe

branches: 1.29.8; 1.29.16;
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: 1.28.2; 1.28.4;
Use lwp_getpcb() in compat code, clean from struct user.

branches: 1.27.2;
Remove clause 3 and 4 from TNF licenses

branches: 1.26.2;
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: 1.25.6; 1.25.8;
Make this compile again.

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: 1.23.4;
ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

branches: 1.22.8; 1.22.10; 1.22.18;
Remove duplicate #include <sys/param.h>,
and pull in the <sys/cdefs.h> needed for __KERNEL_RCSID

From: Slava Semushin <php-coder@altlinux.ru>

branches: 1.21.2; 1.21.4; 1.21.6;
fix caddr_t fallout.

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

branches: 1.19.2;
Merge newlock2 to head.

branches: 1.18.2;
Use VALID_R15_PSR() to check the context we're restoring in
linux_sys_sigreturn(). Somehow this got missed when I introduced that macro.

branches: 1.17.4; 1.17.8;
merge ktrace-lwp.

need linux_syscallargs.h to compile, and remove inline function.

branches: 1.15.2;
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.

nuke trailing whitespace

branches: 1.13.8; 1.13.10;
Adapt ARM Linux compat code to deal with SIGINFO.

Fix "constify sendsig/trapsignal" fallout for non-siginfo'd archs. Test
compiled on most architectures.

branches: 1.11.2;
Merge the nathanw_sa branch.

Don't include <sys/map.h>.

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.

whitespace fixes

branches: 1.7.2;
make signal array handling uniform, and put signal arrays in a separate
file. This is simular to errno array handling.

branches: 1.6.2;
Adapt for changes to limux_old_extra_to_native_sigset() and
native_to_linux_old_extra_sigset().

linux_sys_rt_sigreturn is currently marked UNIMPL, so leave the stub out.

- 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

branches: 1.3.2;
We shouldn't need an icache sync when catching a signal, so don't bother.

More-or-less working signal handling for Linux processes on ARM.

Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Remove clause 3 and 4 from TNF licenses

branches: 1.5.12; 1.5.14; 1.5.16;
Remove all the __P

branches: 1.4.18; 1.4.74; 1.4.76; 1.4.82; 1.4.86;
Do the syscall_plain/syscall_fancy dance on ARM. Shaves a fair number
of cycles off the syscall overhead.

Since all COMPAT_LINUX platforms now support __HAVE_SYSCALL_INTERN,
garbage-collect the LINUX_SYSCALL_FUNCTION stuff.

branches: 1.3.2;
- 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

branches: 1.2.2;
More-or-less working signal handling for Linux processes on ARM.

Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Support Linux MAP_LOCKED mmap flag.

branches: 1.4.44; 1.4.64;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.70; 1.3.72; 1.3.74;
merge ktrace-lwp.

g/c LINUX_MAP_IGNMASK define - it's not used anywhere

branches: 1.1.2; 1.1.4; 1.1.20;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

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.

Move proc_lock into the data segment. It was dynamically allocated because
at the time we had mutex_obj_alloc() but not __cacheline_aligned.

branches: 1.21.8;
union was removed

Remove the filesystem tracing feature

This is a legacy interface from 4.4BSD, and it was
introduced to overcome shortcomings of ptrace(2) at that time, which are
no longer relevant (performance). Today /proc/#/ctl offers a narrow
subset of ptrace(2) commands and is not applicable for modern
applications use beyond simplistic tracing scenarios.

This removal will simplify kernel internals. Users will still be able to
use all the other /proc files.

This change won't affect other procfs files neither Linux compat
features within mount_procfs(8). /proc/#/ctl isn't available on Linux.

Remove:
- /proc/#/ctl from mount_procfs(8)
- P_FSTRACE note from the documentation of ps(1)
- /proc/#/ctl and filesystem tracing documentation from mount_procfs(8)
- KAUTH_REQ_PROCESS_PROCFS_CTL documentation from kauth(9)
- source code file miscfs/procfs/procfs_ctl.c
- PFSctl and procfs_doctl() from sys/miscfs/procfs/procfs.h
- KAUTH_REQ_PROCESS_PROCFS_CTL from sys/sys/kauth.h
- PSL_FSTRACE (0x00010000) from sys/sys/proc.h
- P_FSTRACE (0x00010000) from sys/sys/sysctl.h

Reduce code complexity after removal of this functionality.

Update TODO.ptrace accordingly: remove two entries about /proc tracing.

Do not keep legacy notes as comments in the headers about removed
PSL_FSTRACE / P_FSTRACE, as this interface had little number of users
(close or equal to zero).

Proposed on tech-kern@.

All filesystem tracing utility users are encouraged to switch to ptrace(2).

Sponsored by <The NetBSD Foundation>

branches: 1.19.10;
Don't release proc_lock until we're done looking at things that are
protected by the lock, particularly p_stat and p_waited. Found by
Robert Elz.

XXX Pullup to NetBSD-7, -6, -6-0, and -6-1

branches: 1.18.2;
Do not uselessly include <sys/malloc.h>.

branches: 1.17.2; 1.17.14;
Add missing <machine/pcb.h> include

branches: 1.16.8; 1.16.14; 1.16.18; 1.16.20;
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.

Remove pfind() and pgfind(), fix locking in various broken uses of these.
Rename real routines to proc_find() and pgrp_find(), remove PFIND_* flags
and have consistent behaviour. Provide proc_find_raw() for special cases.
Fix memory leak in sysctl_proc_corename().

COMPAT_LINUX: rework ptrace() locking, minimise differences between
different versions per-arch.

Note: while this change adds some formal cosmetics for COMPAT_DARWIN and
COMPAT_IRIX - locking there is utterly broken (for ages).

Fixes PR/43176.

branches: 1.14.4; 1.14.6;
kill MALLOC and FREE macros.

branches: 1.13.2; 1.13.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.12.2;
Disable bitrotted linux ptrace interfaces, which are likely now a
security hole. Can be re-enabled at runtime. If you want to repair
them please look at the native implementation.

branches: 1.11.6; 1.11.8;
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: 1.10.4;
ANSIfy most of the function definitions in sys/compat (but not ndis).
All by the magic of sed ...

branches: 1.9.14; 1.9.16; 1.9.24;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

Make this build.

branches: 1.7.2;
Merge newlock2 to head.

branches: 1.6.2;
When calling PTRACE from an LKM, use sysent[SYS_ptrace].sy_call in case
the sys_ptrace symbol isn't present.

Update to deal with options PTRACE

Remove SET/CLR/ISSET definitions.

branches: 1.3.18; 1.3.24; 1.3.32; 1.3.34; 1.3.36;
Merge the nathanw_sa branch.

branches: 1.2.2; 1.2.4;
Add support for PTRACE_GETREGS and PTRACE_SETREGS in ARMLinux emulation.

Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Remove clause 3 and 4 from TNF licenses

branches: 1.3.108; 1.3.110; 1.3.112;
bring the reverse signal mapping array into linux_signo.c

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

branches: 1.1.2; 1.1.4;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

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.

branches: 1.1.2; 1.1.4; 1.1.122; 1.1.138;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Remove clause 3 and 4 from TNF licenses

branches: 1.8.12; 1.8.14; 1.8.16;
Remove all the __P

branches: 1.7.44; 1.7.46; 1.7.52; 1.7.56;
merge ktrace-lwp.

MINSIGSTKSZ on linux is different depending on the platform and usually
smaller than ours.

branches: 1.5.2;
Add support for Linux SA_RESTORER on amd64.

branches: 1.4.6;
rename: s/sa_/<compat>sa/g

- Now that RT-signals fit, fix the array to deliver them. [i386 only].
- jdk-1.4 works perfectly now. :-)

branches: 1.2.2;
Add LINUX_SA_NOCLDWAIT.

branches: 1.1.2;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

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: 1.4.34; 1.4.44; 1.4.50;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.70; 1.3.72; 1.3.74;
merge ktrace-lwp.

add LINUX_SO_PEERNAME, LINUX_SO_TIMESTAMP where it has been missing
fix value for LINUX_SO_DETACH_FILTER on couple places (unused anyway)

g/c LINUX_SCM_TIMESTAMP definition for some archs, it will be defined
in generic linux_socket.h

branches: 1.1.2; 1.1.4; 1.1.20;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Remove port-acorn26

OK core@

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: 1.13.10; 1.13.30; 1.13.32;
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: 1.12.34; 1.12.44; 1.12.48;
cleanup user.h.
- remove several #include which are not directly related to
this header anymore. tweak *.c accordingly.
- update comments.
- move some !_KERNEL #include to proc.h because it's more appropriate
place these days.
- whitespace.

branches: 1.11.4; 1.11.6; 1.11.8; 1.11.10; 1.11.12;
merge ktrace-lwp.

branches: 1.10.4;
nuke trailing whitespace

branches: 1.9.8; 1.9.10;
Adapt ARM Linux compat code to deal with SIGINFO.

branches: 1.8.2;
Merge the nathanw_sa branch.

arm26->acorn26 transition.

__RCSID -> __KERNEL_RCSID

Id -> NetBSD in RCSID (oops).

branches: 1.4.2; 1.4.4;
cpu_cache_syncI_rng -> cpu_icache_sync_range

Get rid of "unused variable" warnings on arm26.

Add support for breakpoints to ARMLinux emulation.

Add support for the ARM-specific syscalls in ARMLinux. These are invoked
by SWI numbers above 0x9f0000, but we re-map them down to somewhere just
after the end of the usual syscall range, since NetBSD doesn't handle
sparse syscall arrays well.

The only syscall I've actually implemented in this range is cacheflush(),
which was previously being mapped to fork(), causing ... interesting results.

regen

regen

regen

regen

regen

branches: 1.93.2;
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: 1.82.2;
Regen for native futex calls.

regen

Regen

branches: 1.79.8; 1.79.10;
regen

branches: 1.78.4;
regen

Regen for accept4

regen all

branches: 1.75.2;
regen

regen

regen

regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.68.2;
Regen

Regen

regen

branches: 1.65.2;
Regen for ppoll signature fix

branches: 1.64.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for mknod device argument type change.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.57.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.53.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.51.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.50.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regenerate these files after adding pipe2() and dup3().

branches: 1.47.2;
regen

branches: 1.46.2; 1.46.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for rt_queueinfo(2) update.

branches: 1.43.2;
Regen for wait4 update.

Rengen for compat50 update.

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

actually commit syscalls.master this time
add back blank line between #include <sys/.. and #include <sys/compat/..
regen

regen for christos_time_t merge

Regen.

Regen for nanosleep(2) fix.

branches: 1.36.2; 1.36.4; 1.36.8; 1.36.10; 1.36.12;
Regen.

branches: 1.35.2;
Regen for linux_sys_msync removal.

branches: 1.34.6;
Regen.

Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.30.2; 1.30.6;
Regen, for syscalls cleanup.

branches: 1.29.14; 1.29.16; 1.29.20; 1.29.22;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.28.8;
Regen.

Regen

regen

branches: 1.25.4; 1.25.8; 1.25.14;
merge ktrace-lwp.

branches: 1.24.2;
Regen.

Regen.

regen

regen

branches: 1.20.4; 1.20.6;
regen:
implement support for Linux statfs64() syscall - 64bit variant of statfs()

regen: add exit_group(2)

regen:

add stub entries for syscalls added until Linux kernel 2.6.7

move the ARM-specific syscall range up to offset 0x180, to make room
for the new syscalls

regen:

connect madvise(2) and mincore(2) - apparently the newer Linux libs
don't stub it anymore, so allow the application to take advantage
of them

the Linux calls appear to be compatible in the flag values and semantics,
so a wrapper is not necessary

regen - added wrapper for Linux ftruncate64()

branches: 1.15.2;
Regenerate after adding include of linux_mmap.h.

Regen.

Regen to get correct RCS IDs.

Regen: Merge the nathanw_sa branch.

branches: 1.11.4;
regen - hook linux_sys_fcntl64()

regen

regen

branches: 1.8.2;
Regen.

- 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

branches: 1.6.2;
Regen (breakpoint() implemented).

Regen (prototype for linux_sys_nosys()).

Regen (sys_nosys -> linux_sys_nosys).

Regen (cacheflush() and remove syscall 0).

Regen.

Generated files for ARMLinux binary compatibility.

regen

regen

regen

regen

regen

branches: 1.93.2;
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: 1.82.2;
Regen for native futex calls.

regen

Regen

branches: 1.79.8; 1.79.10;
regen

branches: 1.78.4;
regen

Regen for accept4

regen all

branches: 1.75.2;
regen

regen

regen

regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.68.2;
Regen

Regen

regen

branches: 1.65.2;
Regen for ppoll signature fix

branches: 1.64.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for mknod device argument type change.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.57.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.53.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.51.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.50.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regenerate these files after adding pipe2() and dup3().

branches: 1.47.2;
regen

branches: 1.46.2; 1.46.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for rt_queueinfo(2) update.

branches: 1.43.2;
Regen for wait4 update.

Rengen for compat50 update.

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

actually commit syscalls.master this time
add back blank line between #include <sys/.. and #include <sys/compat/..
regen

regen for christos_time_t merge

Regen.

Regen for nanosleep(2) fix.

branches: 1.36.2; 1.36.4; 1.36.8; 1.36.10; 1.36.12;
Regen.

branches: 1.35.2;
Regen for linux_sys_msync removal.

branches: 1.34.6;
Regen.

Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.30.2; 1.30.6;
Regen, for syscalls cleanup.

branches: 1.29.14; 1.29.16; 1.29.20; 1.29.22;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.28.8;
Regen.

Regen

regen

branches: 1.25.4; 1.25.8; 1.25.14;
merge ktrace-lwp.

branches: 1.24.2;
Regen.

Regen.

regen

regen

branches: 1.20.4; 1.20.6;
regen:
implement support for Linux statfs64() syscall - 64bit variant of statfs()

regen: add exit_group(2)

regen:

add stub entries for syscalls added until Linux kernel 2.6.7

move the ARM-specific syscall range up to offset 0x180, to make room
for the new syscalls

regen:

connect madvise(2) and mincore(2) - apparently the newer Linux libs
don't stub it anymore, so allow the application to take advantage
of them

the Linux calls appear to be compatible in the flag values and semantics,
so a wrapper is not necessary

regen - added wrapper for Linux ftruncate64()

branches: 1.15.2;
Regenerate after adding include of linux_mmap.h.

Regen.

Regen to get correct RCS IDs.

Regen: Merge the nathanw_sa branch.

branches: 1.11.4;
regen - hook linux_sys_fcntl64()

regen

regen

branches: 1.8.2;
Regen.

- 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

branches: 1.6.2;
Regen (breakpoint() implemented).

Regen (prototype for linux_sys_nosys()).

Regen (sys_nosys -> linux_sys_nosys).

Regen (cacheflush() and remove syscall 0).

Regen.

Generated files for ARMLinux binary compatibility.

regen

regen

regen

regen

regen

branches: 1.93.2;
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: 1.82.2;
Regen for native futex calls.

regen

Regen

branches: 1.79.8; 1.79.10;
regen

branches: 1.78.4;
regen

Regen for accept4

regen all

branches: 1.75.2;
regen

regen

regen

regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.68.2;
Regen

Regen

regen

branches: 1.65.2;
Regen for ppoll signature fix

branches: 1.64.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for mknod device argument type change.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.57.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.53.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.51.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.50.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regenerate these files after adding pipe2() and dup3().

branches: 1.47.2;
regen

branches: 1.46.2; 1.46.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for rt_queueinfo(2) update.

branches: 1.43.2;
Regen for wait4 update.

Rengen for compat50 update.

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

actually commit syscalls.master this time
add back blank line between #include <sys/.. and #include <sys/compat/..
regen

regen for christos_time_t merge

Regen.

Regen for nanosleep(2) fix.

branches: 1.36.2; 1.36.4; 1.36.8; 1.36.10; 1.36.12;
Regen.

branches: 1.35.2;
Regen for linux_sys_msync removal.

branches: 1.34.6;
Regen.

Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.30.2; 1.30.6;
Regen, for syscalls cleanup.

branches: 1.29.18; 1.29.20; 1.29.24; 1.29.26;
Merge newlock2 to head.

branches: 1.28.2;
Regen.

Regen

regen

branches: 1.25.4; 1.25.8; 1.25.14;
merge ktrace-lwp.

branches: 1.24.2;
Regen.

Regen.

regen

regen

branches: 1.20.4; 1.20.6;
regen:
implement support for Linux statfs64() syscall - 64bit variant of statfs()

regen: add exit_group(2)

regen:

add stub entries for syscalls added until Linux kernel 2.6.7

move the ARM-specific syscall range up to offset 0x180, to make room
for the new syscalls

regen:

connect madvise(2) and mincore(2) - apparently the newer Linux libs
don't stub it anymore, so allow the application to take advantage
of them

the Linux calls appear to be compatible in the flag values and semantics,
so a wrapper is not necessary

regen - added wrapper for Linux ftruncate64()

branches: 1.15.2;
Regenerate after adding include of linux_mmap.h.

Regen.

Regen to get correct RCS IDs.

Regen: Merge the nathanw_sa branch.

branches: 1.11.4;
regen - hook linux_sys_fcntl64()

regen

regen

branches: 1.8.2;
Regen.

- 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

branches: 1.6.2;
Regen (breakpoint() implemented).

Regen (prototype for linux_sys_nosys()).

Regen (sys_nosys -> linux_sys_nosys).

Regen (cacheflush() and remove syscall 0).

Regen.

Generated files for ARMLinux binary compatibility.

regen

regen

regen

regen

regen

branches: 1.93.2;
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: 1.82.2;
Regen for native futex calls.

regen

Regen

branches: 1.79.8; 1.79.10;
regen

branches: 1.78.4;
regen

Regen for accept4

regen all

branches: 1.75.2;
regen

regen

regen

regen

Regen (something apparently went wrong in previous)

Regen

Regen for readlink/readlinkat signatures.

branches: 1.68.2;
Regen

Regen

regen

branches: 1.65.2;
Regen for ppoll signature fix

branches: 1.64.2;
Regen for munmap(2) signature.

Regen for utimes(2) change.

Regen for getgroups/setgroups update.

Regen for fadvise64 offset types changes.

Regen for mknod device argument type change.

Regen for pread/pwrite 64bit offset argument.

Regen.

branches: 1.57.2;
Regen.

regen

Regen for dup/dup2/dup3 argument types fix.

Regen for utimensat(2).

branches: 1.53.4;
regen for utimes

regen for ppoll (and, apparently, SYCALL_ARG_PTR)

branches: 1.51.10;
- add sigtimedwait support.
- merge the siginfo population code.

branches: 1.50.4;
Regenerate files to pick up correct RCS Ids. Suggested by Chris Badura.

Add fadvise64 and fadvise64_64 syscalls to compat_linux and compat_linux32.

Regenerate these files after adding pipe2() and dup3().

branches: 1.47.2;
regen

branches: 1.46.2; 1.46.4;
Regen (new makesyscalls.sh)

Regen for personality(2) update.

Regen for rt_queueinfo(2) update.

branches: 1.43.2;
Regen for wait4 update.

Rengen for compat50 update.

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

actually commit syscalls.master this time
add back blank line between #include <sys/.. and #include <sys/compat/..
regen

regen for christos_time_t merge

Regen.

Regen for nanosleep(2) fix.

branches: 1.36.2; 1.36.4; 1.36.8; 1.36.10; 1.36.12;
Regen.

branches: 1.35.2;
Regen for linux_sys_msync removal.

branches: 1.34.6;
Regen.

Regen for linux_sys_getpgid removal.

Regen for getfsuid/setfsgid syscall exchange.

regen

branches: 1.30.2; 1.30.6;
Regen, for syscalls cleanup.

branches: 1.29.18; 1.29.20; 1.29.24; 1.29.26;
Merge newlock2 to head.

branches: 1.28.2;
Regen.

Regen

regen

branches: 1.25.4; 1.25.8; 1.25.14;
merge ktrace-lwp.

branches: 1.24.2;
Regen.

Regen.

regen

regen

branches: 1.20.4; 1.20.6;
regen:
implement support for Linux statfs64() syscall - 64bit variant of statfs()

regen: add exit_group(2)

regen:

add stub entries for syscalls added until Linux kernel 2.6.7

move the ARM-specific syscall range up to offset 0x180, to make room
for the new syscalls

regen:

connect madvise(2) and mincore(2) - apparently the newer Linux libs
don't stub it anymore, so allow the application to take advantage
of them

the Linux calls appear to be compatible in the flag values and semantics,
so a wrapper is not necessary

regen - added wrapper for Linux ftruncate64()

branches: 1.15.2;
Regenerate after adding include of linux_mmap.h.

Regen.

Regen to get correct RCS IDs.

Regen: Merge the nathanw_sa branch.

branches: 1.11.4;
regen - hook linux_sys_fcntl64()

regen

regen

branches: 1.8.2;
Regen.

- 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

branches: 1.6.2;
Regen (breakpoint() implemented).

Regen (prototype for linux_sys_nosys()).

Regen (sys_nosys -> linux_sys_nosys).

Regen (cacheflush() and remove syscall 0).

Regen.

Generated files for ARMLinux binary compatibility.

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

Regen for accept4

regen all

branches: 1.8.2;
regen

regen

regen

Cast pointer to int via intptr_t

regen

Regen (something apparently went wrong in previous)

Regen for readlink/readlinkat signatures.

branches: 1.1.2; 1.1.4;
Regen

Remove clause 3 and 4 from TNF licenses

branches: 1.1.2; 1.1.4; 1.1.118; 1.1.120; 1.1.122;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Fix stat64 by making it match i386. Other archs might still be broken,
but this is the one I could test.

branches: 1.8.14; 1.8.24;
merge christos-time_t

branches: 1.7.8; 1.7.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.6.70; 1.6.72; 1.6.74;
merge ktrace-lwp.

move definition of linux_fsid_t to common/linux_types.h - it's identical
across all Linux archs

move definition of struct linux_stafs to common/linux_types.h, and use
explicit size types - the structure definition is actually identical
on currently support COMPAT_LINUX archs, so no point to have 6 copies of it
in the tree

branches: 1.3.8;
On archs with broken linux struct stat64 st_ino, rename linux_stat64's
lst_ino to __lst_ino and lst_ino64 to lst_ino, and define
LINUX_STAT64_HAS_BROKEN_ST_INO. Only assign __lst_ino if this define
is present.

This fixes compile on powerpc archs, and hence port-powerpc/16893.

branches: 1.2.2; 1.2.10;
Add an lst_ino64 member to struct linux_stat64.

branches: 1.1.2;
Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

Add linux_systrace_args.c for arm

branches: 1.2.2; 1.2.4; 1.2.168; 1.2.188;
sys_nosys="linux_sys_nosys", since that's how it should be.

Crude first cut at ARMLinux binary compatibility. Successfully runs
"/emul/linux/bin/echo hello, world", dynamically linked.

s/SYS_MAXSYSARGS/LINUX_SYS_MAXSYSARGS/

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

remove unimpl

one more

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

Add linux POSIX message queue support (Ricardo Branco)

branches: 1.80.2;
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 syscalls