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[src/trunk]: src/sys/conf Add -fstack-usage to kernel builds. Produces .su fi...
details: https://anonhg.NetBSD.org/src/rev/de456959a304
branches: trunk
changeset: 973037:de456959a304
user: simonb <simonb%NetBSD.org@localhost>
date: Wed Jun 17 02:40:43 2020 +0000
description:
Add -fstack-usage to kernel builds. Produces .su files that can be
analysed to find large stack users.
diffstat:
sys/conf/Makefile.kern.inc | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diffs (30 lines):
diff -r ae271be7b57f -r de456959a304 sys/conf/Makefile.kern.inc
--- a/sys/conf/Makefile.kern.inc Wed Jun 17 00:16:21 2020 +0000
+++ b/sys/conf/Makefile.kern.inc Wed Jun 17 02:40:43 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.kern.inc,v 1.270 2020/05/21 18:44:19 christos Exp $
+# $NetBSD: Makefile.kern.inc,v 1.271 2020/06/17 02:40:43 simonb Exp $
#
# This file contains common `MI' targets and definitions and it is included
# at the bottom of each `MD' ${MACHINE}/conf/Makefile.${MACHINE}.
@@ -104,6 +104,9 @@
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
+CFLAGS+= -fstack-usage
# XXX
.if defined(HAVE_GCC) || defined(HAVE_LLVM)
@@ -338,8 +341,8 @@
.if !target(__CLEANKERNEL)
__CLEANKERNEL: .USE
${_MKMSG} "${.TARGET}ing the kernel objects"
- rm -f ${KERNELS} *.map eddep tags *.[io] *.ko *.ln [a-z]*.s vers.c \
- [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
+ rm -f ${KERNELS} *.map *.[io] *.ko *.ln [a-z]*.s *.su vers.c \
+ eddep tags [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
${EXTRA_KERNELS} ${EXTRA_CLEAN}
.endif
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