svn commit: r358132 - in head: . share/mk

[Dimitry Andric]

Author: dim
Date: Wed Feb 19 21:12:59 2020
New Revision: 358132
URL: https://svnweb.freebsd.org/changeset/base/358132

Log:
  Take LINKER_FREEBSD_VERSION from numerical field after dash
  
  Summary:
  With COMPILER_FREEBSD_VERSION, we use a numeric value that we bump each
  time we make a change that requires re-bootstrapping, but with the
  linker variant, we instead take the entire part after "FreeBSD", as in
  this example version output:
  
  LLD 9.0.1 (FreeBSD c1a0a213378a458fbea1a5c77b315c7dce08fd05-1300006) (compatible with GNU linkers)
  
  E.g., LINKER_FREEBSD_VERSION is currently being set to
  "c1a0a213378a458fbea1a5c77b315c7dce08fd05-1300006".  This means that
  *any* new upstream lld version will cause re-bootstrapping.
  
  We should only look at the numerical field we append after a dash
  instead.  This review attempts to make it so.
  
  The only thing I am not happy about is the post-processing of awk output
  in Makefile.inc1.  I notice that our awk does not have gensub(), so it
  can't substitute a numbered sub-regex with \1, \2, etc.  Suggestions
  welcome. :)
  
  MFC after:	1 week
  Differential Revision: https://reviews.freebsd.org/D23691

Modified:
  head/Makefile.inc1
  head/share/mk/bsd.linker.mk

Modified: head/Makefile.inc1
==============================================================================
--- head/Makefile.inc1	Wed Feb 19 21:03:06 2020	(r358131)
+++ head/Makefile.inc1	Wed Feb 19 21:12:59 2020	(r358132)
@@ -272,9 +272,10 @@ WANT_LINKER_TYPE=
     !make(test-system-compiler)
 .if ${WANT_LINKER_TYPE} == "lld"
 WANT_LINKER_FREEBSD_VERSION_FILE= lib/clang/include/VCSVersion.inc
-WANT_LINKER_FREEBSD_VERSION!= \
+_WANT_LINKER_FREEBSD_VERSION!= \
 	awk '$$2 == "LLD_REVISION" {gsub(/"/, "", $$3); print $$3}' \
 	${SRCDIR}/${WANT_LINKER_FREEBSD_VERSION_FILE} || echo unknown
+WANT_LINKER_FREEBSD_VERSION=${_WANT_LINKER_FREEBSD_VERSION:C/.*-(.*)/\1/}
 WANT_LINKER_VERSION_FILE= lib/clang/include/lld/Common/Version.inc
 WANT_LINKER_VERSION!= \
 	awk '$$2 == "LLD_VERSION" {split($$3, a, "."); print a[1] * 10000 + a[2] * 100 + a[3]}' \

Modified: head/share/mk/bsd.linker.mk
==============================================================================
--- head/share/mk/bsd.linker.mk	Wed Feb 19 21:03:06 2020	(r358131)
+++ head/share/mk/bsd.linker.mk	Wed Feb 19 21:12:59 2020	(r358132)
@@ -69,9 +69,11 @@ _v=	${_ld_version:M[1-9]*.[0-9]*:[1]}
 .elif ${_ld_version:[1]} == "LLD"
 ${X_}LINKER_TYPE=	lld
 _v=	${_ld_version:[2]}
-${X_}LINKER_FREEBSD_VERSION!= \
-	${${ld}} --version | \
-	awk '$$3 ~ /FreeBSD/ {print substr($$4, 1, length($$4)-1)}'
+.if ${_ld_version:[3]} == "(FreeBSD"
+${X_}LINKER_FREEBSD_VERSION:=	${_ld_version:[4]:C/.*-(.*)\)/\1/}
+.else
+${X_}LINKER_FREEBSD_VERSION=	0
+.endif
 .else
 .warning Unknown linker from ${ld}=${${ld}}: ${_ld_version}, defaulting to bfd
 ${X_}LINKER_TYPE=	bfd