Author: bdrewery
Date: Sat Mar 10 02:09:36 2018
New Revision: 330722
URL: https://svnweb.freebsd.org/changeset/base/330722
Log:
Reduce overhead for simple 'make -V' lookups by avoiding 'find sys/'.
Setting -DNO_SKIP_MPATH can be used for debugging.
Reported by: bde
MFC after: 2 weeks
Sponsored by: Dell EMC
Modified:
head/sys/conf/config.mk
head/sys/conf/kern.pre.mk
Modified: head/sys/conf/config.mk
==============================================================================
--- head/sys/conf/config.mk Sat Mar 10 01:53:42 2018 (r330721)
+++ head/sys/conf/config.mk Sat Mar 10 02:09:36 2018 (r330722)
@@ -50,7 +50,8 @@ KERN_OPTS!=cat ${KERNBUILDDIR}/opt*.h | awk '{print $$
.export KERN_OPTS
.endif
-.if !defined(NO_MODULES) && !defined(__MPATH)
+.if !defined(NO_MODULES) && !defined(__MPATH) && !make(install) && \
+ (empty(.MAKEFLAGS:M-V) || defined(NO_SKIP_MPATH))
__MPATH!=find ${SYSDIR:tA}/ -name \*_if.m
.export __MPATH
.endif
Modified: head/sys/conf/kern.pre.mk
==============================================================================
--- head/sys/conf/kern.pre.mk Sat Mar 10 01:53:42 2018 (r330721)
+++ head/sys/conf/kern.pre.mk Sat Mar 10 02:09:36 2018 (r330722)
@@ -214,7 +214,8 @@ SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compil
SYSTEM_DEP+= ${LDSCRIPT}
# Calculate path for .m files early, if needed.
-.if !defined(NO_MODULES) && !defined(__MPATH) && !make(install)
+.if !defined(NO_MODULES) && !defined(__MPATH) && !make(install) && \
+ (empty(.MAKEFLAGS:M-V) || defined(NO_SKIP_MPATH))
__MPATH!=find ${S:tA}/ -name \*_if.m
.endif
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