Module Name: src
Committed By: simonb
Date: Wed Jun 17 02:40:43 UTC 2020
Modified Files:
src/sys/conf: Makefile.kern.inc
Log Message:
Add -fstack-usage to kernel builds. Produces .su files that can be
analysed to find large stack users.
To generate a diff of this commit:
cvs rdiff -u -r1.270 -r1.271 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:1.270 src/sys/conf/Makefile.kern.inc:1.271
--- src/sys/conf/Makefile.kern.inc:1.270 Thu May 21 18:44:19 2020
+++ src/sys/conf/Makefile.kern.inc Wed Jun 17 02:40:43 2020
@@ -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+= -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
+CFLAGS+= -fstack-usage
# XXX
.if defined(HAVE_GCC) || defined(HAVE_LLVM)
@@ -338,8 +341,8 @@ ${_s:T:R}.o: ${_s}
.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
