Module Name: src
Committed By: jdolecek
Date: Wed Jul 22 19:37:59 UTC 2020
Modified Files:
src/sys/conf: Makefile.kern.inc
Log Message:
enable -Walloca, warn if something uses alloca()
To generate a diff of this commit:
cvs rdiff -u -r1.274 -r1.275 src/sys/conf/Makefile.kern.inc
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/conf/Makefile.kern.inc
diff -u src/sys/conf/Makefile.kern.inc:1.274 src/sys/conf/Makefile.kern.inc:1.275
--- src/sys/conf/Makefile.kern.inc:1.274 Thu Jun 25 14:52:26 2020
+++ src/sys/conf/Makefile.kern.inc Wed Jul 22 19:37:59 2020
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.kern.inc,v 1.274 2020/06/25 14:52:26 jdolecek Exp $
+# $NetBSD: Makefile.kern.inc,v 1.275 2020/07/22 19:37:59 jdolecek Exp $
#
# This file contains common `MI' targets and definitions and it is included
# at the bottom of each `MD' ${MACHINE}/conf/Makefile.${MACHINE}.
@@ -104,12 +104,14 @@ CFLAGS+= -ffreestanding -fno-zero-initia
CFLAGS+= ${${ACTIVE_CC} == "gcc":? -fno-delete-null-pointer-checks :}
CFLAGS+= ${DEBUG} ${COPTS}
AFLAGS+= -D_LOCORE -Wa,--fatal-warnings
+
# example usage to find largest stack users in kernel compile directory:
# find . -name \*.su | xargs awk '{ printf "%6d %s\n", $2, $1 }' | sort -n
.if ${MACHINE} != "vax"
# GCC/vax 8.4 does not support -fstack-usage.
CFLAGS+= ${${ACTIVE_CC} == "gcc":? -fstack-usage -Wstack-usage=3584 :}
.endif
+CWARNFLAGS+= -Walloca
# XXX
.if defined(HAVE_GCC) || defined(HAVE_LLVM)
