libc: modernize lint stubs

Use prototype function definitions instead of identifier lists, as C23
does not support the latter.

Remove redundant /*ARGSUSED*/ comments and parentheses.

branches: 1.2.2;
Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

Add glue to build the compat library as a separate "libcold" turned off by
default. Clean up the libc Makefile and remove obsolete stuff such as copy
to libkern.

version dup3

Version the sigaction(2) libc wrapper. The new version uses the "siginfo"
trampoline exclusively, thus relegating "sigcontext"-style handlers (which
have not been documented for many years now) to the dustbin of the compat
library.

Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

branches: 1.9.28;
Compat glue for lwp park, but does not use the new syscall yet.

branches: 1.8.8; 1.8.14;
merge christos-time_t

branches: 1.7.20;
Change libc system callstub from 'mount' to '__mount50', add compat call.

Make filehandles opaque to userland

Fix alignement problems for fhandle_t, exposed by gcc4.1.

While touching all vptofh/fhtovp functions, get rid of VFS_MAXFIDSIZ,
version the getfh(2) syscall and explicitly pass the size available in
the filehandle from userland.

Discussed on tech-kern, with lots of help from yamt (thanks!).

version the socket(2) syscall. for compat30 socket, we use
EPROTONOSUPPORT instead of EAFNOSUPPORT.

from pavel@ with a little bit of clean up from myself.

XXX: netbsd32 (and perhaps other emulations) should be able
XXX: to call the standard socket calls for this i think, but
XXX: revisit this at another time.

support the new ntp_gettime() syscall and add compatibility for the old one

Add glue to build the compat library as a separate "libcold" turned off by
default. Clean up the libc Makefile and remove obsolete stuff such as copy
to libkern.

compat core reorg.

prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.4.8; 1.4.14;
merge christos-time_t

branches: 1.3.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.18;
remove the support of variable-sized filehandle from compat version of
syscalls. (strictly speaking, it breaks abi. i don't think it's a problem
because this feature is short-lived and there are no affected in-tree
filesystems.)

Make filehandles opaque to userland

branches: 1.1.4;
Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

branches: 1.1.4;
Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

Fix const argument inconsistency (found by lint(1))

branches: 1.2.4;
expose __lwp_park60

branches: 1.1.2;
Compat glue for lwp park, but does not use the new syscall yet.

merge christos-time_t

branches: 1.1.2;
file compat___msgctl13.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.2;
file compat___ntp_gettime30.c was initially added on branch christos-time_t.

Remove va_arg hack for Clang/PPC.

Use the lint path as workaround for Clang on 32bit PPC for now.
Document this hack.

If LINT code path uses memcpy, it should also include string.h.

branches: 1.3.10;
Fix emulation issue of SETVAL, and make the code look the same between the
two different versions.

branches: 1.2.4;
merge christos-time_t

branches: 1.1.2;
file compat___semctl13.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.2;
file compat___shmctl13.c was initially added on branch christos-time_t.

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

Version the sigaction(2) libc wrapper. The new version uses the "siginfo"
trampoline exclusively, thus relegating "sigcontext"-style handlers (which
have not been documented for many years now) to the dustbin of the compat
library.

prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.4.8; 1.4.14;
merge christos-time_t

branches: 1.3.28;
Make filehandles opaque to userland

Adjust for the fhstat() compat kernel change.

compat core reorg.

prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.2.8; 1.2.14;
merge christos-time_t

branches: 1.1.2;
file compat___stat30.c was initially added on branch christos-time_t.

Don't include both <lwp.h> and <compat/include/lwp.h>.

merge christos-time_t

branches: 1.1.2;
file compat__lwp_park.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.2;
file compat_adjtime.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.2;
file compat_aio_suspend.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.2;
file compat_clock.c was initially added on branch christos-time_t.

Clean up sources (remove temporary hack)

Remove the temporary hack added so these could build before
O_CLOFORK (etc) became visible to userland.

NFCI.

Libc functions which need to know about O_CLOFORK.

These are Ricardo Branco's libc updates for affected functions
that use O_CLOFORK &/or FD_CLOFORK.

These are currently padded (by me) with temporary additions so
they build while the O_CLOFORK/FD_CLOFORK definitions remain hidden
to userland.

branches: 1.2.2;
finish renaming __dup3110 to __dup3100

version dup3

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

branches: 1.4.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.18;
add missing const.

remove the support of variable-sized filehandle from compat version of
syscalls. (strictly speaking, it breaks abi. i don't think it's a problem
because this feature is short-lived and there are no affected in-tree
filesystems.)

Make filehandles opaque to userland

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

branches: 1.3.8; 1.3.64;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.18;
remove the support of variable-sized filehandle from compat version of
syscalls. (strictly speaking, it breaks abi. i don't think it's a problem
because this feature is short-lived and there are no affected in-tree
filesystems.)

Make filehandles opaque to userland

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

branches: 1.3.8; 1.3.64;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.18;
remove the support of variable-sized filehandle from compat version of
syscalls. (strictly speaking, it breaks abi. i don't think it's a problem
because this feature is short-lived and there are no affected in-tree
filesystems.)

Make filehandles opaque to userland

Add missing includes.

PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values to types that
would not fit.
- change types, add casts
- change into ansii prototypes
- turn on _DIAGNOSTIC for libc (during current, to be eliminated for release
builds)

approved by core@

branches: 1.4.2;
various build fixes for gcc 4.5. from chuq. XXX i'm not sure all of
these work properly wtf pointer aliasing, but there are no casts at
least...

the lib/libpuffs/puffs_priv.h is definately a real bug fix.

from chuq.

branches: 1.3.8; 1.3.22;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.10;
PR lib/34210: Avoid bus error (unaligned 64-bit access) on sparc64.

branches: 1.1.4;
compat core reorg.

Switch to C89 definitions.
Remove use of __P

branches: 1.2.6;
Add __warn_references to getdirentries(), per PR 37730. Okayed by Christos
a while back.

branches: 1.1.30;
compat core reorg.

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

branches: 1.6.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.5.18;
remove the support of variable-sized filehandle from compat version of
syscalls. (strictly speaking, it breaks abi. i don't think it's a problem
because this feature is short-lived and there are no affected in-tree
filesystems.)

Make filehandles opaque to userland

fts_data is defined to be something else now. Avoid syntax error.

Lint insists on this.

Ooops, forgot to add this with the last commit

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.2.8; 1.2.14;
merge christos-time_t

branches: 1.1.2;
file compat_getrusage.c was initially added on branch christos-time_t.

prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.2.8; 1.2.14;
merge christos-time_t

branches: 1.1.2;
file compat_gettimeofday.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.2;
file compat_itimer.c was initially added on branch christos-time_t.

libc: Warn of __kevent50 when itself (not kevent) is referenced

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

merge christos-time_t

branches: 1.1.2;
file compat_kevent.c was initially added on branch christos-time_t.

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

merge christos-time_t

branches: 1.1.2;
file compat_lfs_segwait.c was initially added on branch christos-time_t.

Fix warning message for mknod symbol linkage

The correct reference for mknod(2) is in <sys/stat.h>

branches: 1.4.26;
prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.2.8; 1.2.14;
merge christos-time_t

branches: 1.1.2;
file compat_mknod.c was initially added on branch christos-time_t.

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

branches: 1.2.16;
Fix the return value so the MNT_GETARGS returns 0, not the buffer length.

Change libc system callstub from 'mount' to '__mount50', add compat call.

merge christos-time_t

branches: 1.1.2;
file compat_mqueue.c was initially added on branch christos-time_t.

Switch to C89 definitions.
Remove use of __P

branches: 1.1.44;
compat core reorg.

merge christos-time_t

branches: 1.1.2;
file compat_nanosleep.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.28;
support the new ntp_gettime() syscall and add compatibility for the old one

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

merge christos-time_t

branches: 1.1.2;
file compat_sched.c was initially added on branch christos-time_t.

merge christos-time_t

branches: 1.1.2;
file compat_select.c was initially added on branch christos-time_t.

Remove va_arg hack for Clang/PPC.

Use the lint path as workaround for Clang on 32bit PPC for now.
Document this hack.

If LINT code path uses memcpy, it should also include string.h.

branches: 1.3.10;
Fix emulation issue of SETVAL, and make the code look the same between the
two different versions.

branches: 1.2.4;
merge christos-time_t

branches: 1.1.28;
compat core reorg.

merge christos-time_t

branches: 1.1.2;
file compat_settimeofday.c was initially added on branch christos-time_t.

Switch to C89 definitions.
Remove use of __P

PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values to types that
would not fit.
- change types, add casts
- change into ansii prototypes
- turn on _DIAGNOSTIC for libc (during current, to be eliminated for release
builds)

approved by core@

branches: 1.3.8;
merge christos-time_t

branches: 1.2.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.18;
compat core reorg.

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

merge christos-time_t

branches: 1.1.2;
file compat_sigtimedwait.c was initially added on branch christos-time_t.

version the socket(2) syscall. for compat30 socket, we use
EPROTONOSUPPORT instead of EAFNOSUPPORT.

from pavel@ with a little bit of clean up from myself.

XXX: netbsd32 (and perhaps other emulations) should be able
XXX: to call the standard socket calls for this i think, but
XXX: revisit this at another time.

prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.2.8; 1.2.14;
merge christos-time_t

branches: 1.1.28;
compat core reorg.

deduplicate the conversion function from statvfs -> statfs12

Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

branches: 1.7.26;
prefix compat with __ in case __dso_hidden is not available

avoid linker warning for compat symbols that are used internally in libc,
by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.

branches: 1.5.8; 1.5.14;
sign-compare fix

branches: 1.4.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.3.18;
remove the support of variable-sized filehandle from compat version of
syscalls. (strictly speaking, it breaks abi. i don't think it's a problem
because this feature is short-lived and there are no affected in-tree
filesystems.)

Make filehandles opaque to userland

compat core reorg.

branches: 1.1.4;
Add a new member to struct vfsstat and grow the unused members
The new member is caled f_mntfromlabel and it is the dkw_wname
of the corresponding wedge. This is now used by df -W to display
the mountpoint name as NAME=

merge christos-time_t

branches: 1.1.2;
file compat_timer.c was initially added on branch christos-time_t.

fix simple mis-matched function prototype and definitions.

most of these are like, eg

void foo(int[2]);

with either of these

void foo(int*) { ... }
void foo(int[]) { ... }

in some cases (such as stat or utimes* calls found in our header files),
we now match standard definition from opengroup.

found by GCC 12.

merge christos-time_t

branches: 1.1.2;
file compat_utimes.c was initially added on branch christos-time_t.

Catch up with all the lint warnings since exit on warning was disabled.
Disable 'missing header declaration' and 'nested extern' warnings for now.

Return type of compat wait functions should be pid_t not int.

merge christos-time_t

branches: 1.1.2;
file compat_wait4.c was initially added on branch christos-time_t.

compat core reorg.