CVS commit: src/share/mk

["Kamil Rytarowski" <kamil%netbsd.org@localhost>]

Module Name:    src
Committed By:   kamil
Date:           Thu Jun 21 11:24:38 UTC 2018

Modified Files:
        src/share/mk: bsd.lib.mk bsd.prog.mk bsd.sys.mk

Log Message:
Refactor MKSANITIZER flags in mk rules

Introduce a new variable SANITIZERFLAGS that contains all the sanitizer
specific flags. These flags are designed to be passed to CFLAGS, CXXFLAGS
and LDFLAGS.

Pass SANITIZERFLAGS in bsd.prog.mk rules to CFLAGS, CXXFLAGS and LDFLAGS.

Pass SANITIZERFLAGS in bsd.lib.mk rules to *_pic.a build flags. The *_pic.a
libraries are designed to construct .so libraries. All .so libraries with
few exceptions are expected to be prebuilt with a sanitizer. Another
purpuse of *_pic.a files can be constructing static PIE programs, however
they are not supported as of now and there is no sanitization of static
programs either.

Once MKSTATICPIE will be supported, it will be initially incompatible with
MKSANITIZER.

This change also makes it easier to build other targets like kernel and
kernel modules without userland sanitizers.

No functional change intended for MKSANITIZER=no users.


To generate a diff of this commit:
cvs rdiff -u -r1.374 -r1.375 src/share/mk/bsd.lib.mk
cvs rdiff -u -r1.313 -r1.314 src/share/mk/bsd.prog.mk
cvs rdiff -u -r1.282 -r1.283 src/share/mk/bsd.sys.mk

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.