CVS log for src/sys/compat/netbsd32/netbsd32_compat_16.c

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Default branch: MAIN

Crude patch to allow building and loading of compat_16 and compat_netbsd32_16 code
on aarch64.

Pull up following revision(s) (requested by rin in ticket #989):

	sys/compat/netbsd32/netbsd32_compat_16.c: revision 1.5
	sys/compat/netbsd32/netbsd32_compat_16.c: revision 1.6
	sys/compat/netbsd32/netbsd32_signal.c: revision 1.54

In netbsd32___sigaction_sigtramp continue to use the compat module when
already locked for this process.

Enable compat sigreturn system call.

netbsd32_compat_16.c: Fix whitespace.
No functional change intended.

netbsd32_compat_16.c: Fix whitespace.

No functional change intended.

Enable compat sigreturn system call.

Fix anonymous memory object leak for sigcode.

- Repeating "modload compat_linux && /emul/linux/bin/ls && modunload compat_linux"
  will reproduce this problem.
- It cause in exec_sigcode_map(), anon-object for sigcode was created at
  first exec, but it remained even after exec_remove.
- Fixed that the anon-object for sigcode is created at exec_add(), and the
  anon-object reference is removed at exec_remove().
- sigobject_lock is no longer needed since it is locked by exec_lock.
- The compat_16 module rewrites the e_sigcode entry in emul_netbsd directly and
  does not use exec_add()/exec_remove(), so it needs to call
  sigcode_alloc()/sigcode_free() on its own.

Merge changes from current as of 20200406

Pull up following revision(s) (requested by tsutsui in ticket #570):

	sys/compat/netbsd32/netbsd32_compat_50_sysv.c: revision 1.3
	sys/dev/raidframe/rf_compat50.h: revision 1.6
	sys/arch/emips/emips/bus_space.c: revision 1.3
	sys/compat/net/if.h: revision 1.5
	sys/arch/emips/stand/common/bootinfo.c: revision 1.2
	sys/compat/common/sysv_msg_50.c: revision 1.5
	sys/compat/common/kern_time_30.c: revision 1.8
	sys/arch/emips/stand/common/bootinfo.h: revision 1.2
	sys/arch/ia64/include/bus.h: revision 1.4
	sys/arch/ia64/ia64/bus_space.c: revision 1.2
	sys/compat/common/sysv_shm_50.c: revision 1.5
	sys/dev/ic/adw.h: revision 1.15
	sys/compat/common/uipc_syscalls_50.c: revision 1.10
	sys/arch/emips/ebus/flash_ebus.c: revision 1.22
	sys/dev/ic/adv.h: revision 1.15
	sys/dev/ic/adwmcode.c: revision 1.18
	sys/dev/ic/advlib.c: revision 1.29
	sys/arch/hpcarm/include/kloader.h: revision 1.3
	sys/dev/usb/uberry.c: revision 1.16
	sys/compat/common/sysv_sem_50.c: revision 1.5
	sys/compat/netbsd32/netbsd32_compat_50.c: revision 1.43
	sys/dev/ic/advlib.h: revision 1.21
	sys/dev/ic/adv.c: revision 1.50
	sys/compat/netinet6/in6_var.h: revision 1.5
	sys/arch/hpc/stand/hpcboot/arm/arm_sa1100_asm.asm: revision 1.2
	sys/arch/emips/include/loadfile_machdep.h: revision 1.3
	sys/arch/emips/stand/common/prom_iface.c: revision 1.7
	sys/dev/ic/adw.c: revision 1.56
	sys/dev/ic/adwmcode.h: revision 1.12
	sys/dev/ic/advmcode.c: revision 1.10
	sys/arch/emips/ebus/ace_ebus.c: revision 1.22
	sys/compat/netbsd32/netbsd32_compat_60.c: revision 1.5
	sys/dev/raidframe/rf_compat50.c: revision 1.13
	sys/arch/x68k/dev/intiovar.h: revision 1.15
	sys/dev/usb/uipad.c: revision 1.8
	sys/arch/zaurus/include/kloader.h: revision 1.3
	sys/arch/emips/stand/common/bootxx.c: revision 1.2
	sys/dev/ic/adwlib.h: revision 1.23
	sys/dev/ic/adwlib.c: revision 1.44
	sys/compat/netbsd32/netbsd32_compat_16.c: revision 1.3
	sys/arch/amigappc/include/intr.h: revision 1.27
	sys/arch/x68k/dev/mfp.c: revision 1.27
	sys/arch/arm/at91/at91dbgu.c: revision 1.17
	sys/dev/ic/advmcode.h: revision 1.7
	sys/compat/ultrix/ultrix_exec.h: revision 1.7
	sys/compat/common/vfs_syscalls_50.c: revision 1.24
	sys/arch/mips/cavium/octeon_dma.c: revision 1.3
	sys/arch/hpc/stand/hpcboot/arm/arm_pxa2x0_asm.asm: revision 1.2

Remove clause 3 and 4 from TNF licenses.
Ok'ed by martin@ in PR/54760.

Remove clause 3 and 4 leftovers from TNF licenses in more sources.
Confirmed by martin@ in PR/54760.

Remove clause 3 and 4 leftovers from TNF licenses in more sources.

Confirmed by martin@ in PR/54760.

Sync with HEAD

file netbsd32_compat_16.c was added on branch phil-wifi on 2019-06-10 22:07:01 +0000

Merge the [pgoyette-compat] branch

Normalize the required lists.  Each compat_netbsd32_xx needs the
non-32bit module of the same version _and_ the 32-bit module for
the next higher version.

Make sure that each version-specific compat_netbsd32_xx module depends
on all higher-version-specific modules, similar to the non-32bit
compat_xx modules.

OMG it builds!

Finish rearranging the amd64 MD compat_netbsd32 code.

XXX Other architectures will be dealt with later.

Work in progress - get the arch-specific netbsd32_machdep.c code to
build as a module.

XXX Doesn't work when the code is built-in to the kernel.

Add some more module glue

file netbsd32_compat_16.c was initially added on branch pgoyette-compat.