Prepare some build fixes in advance of more _FORTIFY_SOURCE

ZFS' libspl needs to be made aware that we have strlcat(3) and
strlcpy(3) to avoid some more complicated declaration duplication, so
go ahead and define these HAVE_ macros now.

libprocstat has to define `_KERNEL` and include kernel headers in order
to get what it wants, but this results in sys/cdefs.h being included too
late and we pick up the build breaking version of the __RENAME
definition.  Just explicitly include sys/cdefs.h earlier rather than
disabling _FORTIFY_SOURCE.  The zfs/ subdir only builds an object that
holds some structures and sizes, so just disable _FORTIFY_SOURCE there
entirely rather than trying to move #define _KERNEL into the file..

While we're here, make sure that we disable _FORTIFY_SOURCE in the
bootloader because we don't have the symbol renaming support today to do
it as cleanly as we'd like.  ssp/ssp.h needs to be pulled into the libsa
environment so that other bits can understand that ssp is disabled in
the consistent __SSP_FORTIFY_LEVEL way that we try to do.

Reviewed by:	allanjude (previous version), markj
Sponsored by:	Klara, Inc.
Sponsored by:	Stormshield
Differential Revision:	https://reviews.freebsd.org/D45676

1 files changed, 1 insertions, 0 deletions

diff --git a/cddl/Makefile.inc b/cddl/Makefile.inc
index b306a28b5c84..f07baf295b89 100644
--- a/cddl/Makefile.inc
+++ b/cddl/Makefile.inc
@@ -5,6 +5,7 @@ OPENSOLARIS_SYS_DISTDIR= ${.CURDIR}/../../../sys/cddl/contrib/opensolaris
 IGNORE_PRAGMA=	YES
 
 CFLAGS+=	-DNEED_SOLARIS_BOOLEAN
+CFLAGS+=	-DHAVE_STRLCAT -DHAVE_STRLCPY
 
 # Do not lint the CDDL stuff. It is all externally maintained and
 # lint output is wasteful noise here.