CVS log for src/external/gpl2/lvm2/lvm2tools.mk

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Avoid redefining _REENTRANT under sanitizers

Switch away from -Wno-macro-redefined which was Clang specific.

Mostly merge changes from HEAD upto 20200411

Expand the -Wno-macro-redefined usage to MKLIBCSANITIZER

_REENTRANT can be redefined and this is considered as an error.

Pull up following revision(s) (requested by kamil in ticket #126):

	external/bsd/compiler_rt/lib/clang/lib/netbsd/ubsan_minimal-m64/Makefile: revision 1.3
	external/bsd/compiler_rt/lib/clang/lib/netbsd/msan_cxx-m64/Makefile: revision 1.3
	external/gpl2/lvm2/lvm2tools.mk: revision 1.5
	common/lib/libc/gmon/mcount.c: revision 1.14
	Makefile: revision 1.331
	share/mk/Makefile: revision 1.51
	external/bsd/fetch/lib/Makefile: revision 1.12
	external/bsd/compiler_rt/lib/clang/lib/netbsd/asan_cxx-m64/Makefile: revision 1.3
	tests/lib/libc/net/Makefile: revision 1.12
	external/bsd/compiler_rt/lib/clang/lib/netbsd/ubsan_standalone_cxx-m64/Makefile: revision 1.3
	external/bsd/compiler_rt/lib/clang/lib/netbsd/msan-m64/Makefile: revision 1.3
	distrib/sets/lists/base/mi: revision 1.1213
	share/mk/bsd.lib.mk: revision 1.380
	external/bsd/compiler_rt/lib/clang/lib/netbsd/ubsan_standalone-m64/Makefile: revision 1.3
	external/bsd/compiler_rt/lib/clang/lib/netbsd/asan-m64/Makefile: revision 1.3
	share/mk/bsd.sanitizer.mk: revision 1.1
	share/mk/bsd.prog.mk: revision 1.323
	external/bsd/compiler_rt/lib/clang/lib/netbsd/tsan-m64/Makefile: revision 1.3
	external/bsd/compiler_rt/lib/clang/lib/netbsd/tsan_cxx-m64/Makefile: revision 1.3
	lib/libc/gen/sysctlgetmibinfo.c: revision 1.14

Enhance the support of LLVM sanitizers

Define _REENTRANT for MKSANITIZER build. This is needed for at least stdio
code. This caused new build issued with duplicated symbols in few places
and rump kernel code picking different code paths borrowed from libc.

Handle all this in one go.

Add bsd.sanitizer.mk to share common code used by programs and libraries.

Switch from realall to beforeinstall target in .syms files. This is more
reliable in MKSANITIZER.

Enhance the support of LLVM sanitizers

Define _REENTRANT for MKSANITIZER build. This is needed for at least stdio
code. This caused new build issued with duplicated symbols in few places
and rump kernel code picking different code paths borrowed from libc.
Handle all this in one go.

Add bsd.sanitizer.mk to share common code used by programs and libraries.

Switch from realall to beforeinstall target in .syms files. This is more
reliable in MKSANITIZER.

Sync with HEAD

Use static libdm so dmsetup and lvm can be linked dynamically.
Change LIBDM_* to LIBDEVMAPPER_* so LIBDM can refer to libdm.

Allow operator to use lvm in read-only mode. Switch LVM lock dir to
/var/run/lvm and create it in rc.d/mountcritlocal. Fix dm control device
permissions to allow rw for operator.

Test if we are running lvm commands as operator and if that it's true do not
create vg backups and do not print confusing warning.

PR/44267: Michael van Elst: LVM devices have wrong permissions
- Centralize CPPFLAGS for DM_DEVICE_{UID,GID,MODE}
- Make DM_DEVICE_GID operator DM_DEVICE_MODE 0640 to be more NetBSD like
- make all the code use DM_DEVICE_MODE instead of hard-coding.
- make sure that all mknod calls are followed by a chown call.

Add reachover Makefiles to build LVM2 tools on NetBSD.