freebsd/share/mk/bsd.kern.mk

#	$Id: bsd.kern.mk,v 1.11 1998/12/14 21:03:27 archie Exp $

#
# Warning flags for compiling the kernel and components of the kernel.
#
CWARNFLAGS?=	-Wreturn-type -Wcomment -Wredundant-decls -Wimplicit \
		-Wnested-externs -Wstrict-prototypes -Wmissing-prototypes \
		-Wpointer-arith -Winline -Wuninitialized -Wformat -Wunused \
		-fformat-extensions -ansi
#
# The following flags are next up for working on:
#	-W -Wcast-qual -Wall
#
# When working on removing warnings from code, the `-Werror' flag should be
# of material assistance.
#

#
# On the alpha, make sure that we don't use floating-point registers and
# allow the use of EV56 instructions (only needed for low-level i/o).
#
.if ${MACHINE_ARCH} == "alpha"
CFLAGS+=	-mno-fp-regs -Wa,-mev56
.endif
Move some compile flags from the kernel makefile to bsd.kern.mk so that kernel modules are built with the right flags. Suggested by: Andrew Gallatin <gallatin@cs.duke.edu> 1998-12-17 22:36:21 +00:00			`# $Id: bsd.kern.mk,v 1.11 1998/12/14 21:03:27 archie Exp $`
Oops, forgot to cvs add bsd.kern.mk. Centralized the definition of CWARNFLAGS into bsd.kern.mk. 1996-10-08 22:10:49 +00:00
			`#`
			`# Warning flags for compiling the kernel and components of the kernel.`
			`#`
Turned off -W and -Winline so that the warnings that should be fixed for 2.2 are more obvious. -Winline is unimportant, but -W gives thousands of warnings for comparisions. Turning off -W also loses warnings for: - auto variables clobbered by longjmp. Not much of a problem in the kernel. - functions returning without a value. I don't like losing this. - an expression statement or the left side of a comma operand contains no side effects. Turning this off also stops warnings for the low quality debugging macros in gsc.c and lpt.c. Should be in 2.2. 1996-11-11 15:49:27 +00:00			`CWARNFLAGS?= -Wreturn-type -Wcomment -Wredundant-decls -Wimplicit \`
Oops, forgot to cvs add bsd.kern.mk. Centralized the definition of CWARNFLAGS into bsd.kern.mk. 1996-10-08 22:10:49 +00:00			`-Wnested-externs -Wstrict-prototypes -Wmissing-prototypes \`
Add -Wunused to kernel build flags. Reviewed by: cvs-committers@freebsd.org 1998-12-14 21:03:27 +00:00			`-Wpointer-arith -Winline -Wuninitialized -Wformat -Wunused \`
Turned on -Wformat -fformat-extensions. -fformat-extensions requires a -current version of gcc. Without it, -Wformat would complain about all the nonstandard %[Dbrz] formats in the kernel. 1998-09-09 10:04:58 +00:00			`-fformat-extensions -ansi`
Oops, forgot to cvs add bsd.kern.mk. Centralized the definition of CWARNFLAGS into bsd.kern.mk. 1996-10-08 22:10:49 +00:00			`#`
			`# The following flags are next up for working on:`
Add -Wunused to kernel build flags. Reviewed by: cvs-committers@freebsd.org 1998-12-14 21:03:27 +00:00			`# -W -Wcast-qual -Wall`
Oops, forgot to cvs add bsd.kern.mk. Centralized the definition of CWARNFLAGS into bsd.kern.mk. 1996-10-08 22:10:49 +00:00			`#`
			# When working on removing warnings from code, the `-Werror' flag should be
			`# of material assistance.`
			`#`
Move some compile flags from the kernel makefile to bsd.kern.mk so that kernel modules are built with the right flags. Suggested by: Andrew Gallatin <gallatin@cs.duke.edu> 1998-12-17 22:36:21 +00:00
			`#`
			`# On the alpha, make sure that we don't use floating-point registers and`
			`# allow the use of EV56 instructions (only needed for low-level i/o).`
			`#`
			`.if ${MACHINE_ARCH} == "alpha"`
			`CFLAGS+= -mno-fp-regs -Wa,-mev56`
			`.endif`