From e97ad44d55895d6f5d269b2c316329cbf66e15ac Mon Sep 17 00:00:00 2001
From: James Peach <jpeach@samba.org>
Date: Thu, 9 Feb 2006 23:55:01 +0000
Subject: r13420: Support profile-guided optimisation in the build system. This
 is implemented for gcc 3.x, gcc 4.x and MIPSPro compilers. (This used to be
 commit 5e57021723f091a33021c30557cace2b70acf172)

---
 source3/Makefile.in | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'source3/Makefile.in')

diff --git a/source3/Makefile.in b/source3/Makefile.in
index d8f7dcf519..3dace60331 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -17,6 +17,13 @@ CFLAGS=@CFLAGS@
 CPPFLAGS=@CPPFLAGS@
 EXEEXT=@EXEEXT@
 LDFLAGS=@LDFLAGS@
+
+PGO_GENERATE_CFLAGS=@PGO_GENERATE_CFLAGS@
+PGO_USE_CFLAGS=@PGO_USE_CFLAGS@
+PGO_EXPERIMENT_SCRIPT=@PGO_EXPERIMENT_SCRIPT@
+PGO_LIBS=@PGO_LIBS@
+PGO_TARGET=bin/smbd
+
 AR=@AR@
 LDSHFLAGS=@LDSHFLAGS@ @LDFLAGS@
 WINBIND_NSS_LDSHFLAGS=@WINBIND_NSS_LDSHFLAGS@ @LDFLAGS@
@@ -793,6 +800,24 @@ cac: SHOWFLAGS bin/libmsrpc.@SHLIBEXT@ bin/libmsrpc.a
 everything: all libsmbclient debug2html smbfilter talloctort modules torture \
 	$(EVERYTHING_PROGS)
 
+# Top level target to build $(PGO_TARGET) with profiling data. Use sub-makes to
+# make sure that parallel make does not perturb this sequence.
+@ifPGO@pgo:
+@ifPGO@	$(MAKE) pgo-generate
+@ifPGO@	$(MAKE) pgo-workload
+@ifPGO@	$(MAKE) clean
+@ifPGO@	$(MAKE) headers
+@ifPGO@	$(MAKE)	pgo-use
+
+@ifPGO@pgo-generate:
+@ifPGO@	$(MAKE) CFLAGS="$(CFLAGS) $(PGO_GENERATE_CFLAGS)" "LIBS=$(LIBS) $(PGO_LIBS)" $(PGO_TARGET)
+
+@ifPGO@pgo-workload:
+@ifPGO@	$(SHELL) $(PGO_EXPERIMENT_SCRIPT)
+
+@ifPGO@pgo-use:
+@ifPGO@	$(MAKE) CFLAGS="$(CFLAGS) $(PGO_USE_CFLAGS)" $(PGO_TARGET)
+
 .SUFFIXES:
 .SUFFIXES: .c .o .@PICSUFFIX@ .lo
 
@@ -803,6 +828,8 @@ SHOWFLAGS:
 	@echo "      LDFLAGS = $(LDFLAGS)"
 	@echo "      PIE_CFLAGS = @PIE_CFLAGS@"
 	@echo "      PIE_LDFLAGS = @PIE_LDFLAGS@"
+@ifPGO@	@echo "      PGO_GENERATE_CFLAGS = $(PGO_GENERATE_CFLAGS)"
+@ifPGO@	@echo "      PGO_USE_CFLAGS = $(PGO_USE_CFLAGS)"
 
 MAKEDIR = || exec false; \
 	  if test -d "$$dir"; then :; else \
@@ -1615,6 +1642,7 @@ ctags:
 
 realclean: clean delheaders
 	-rm -f config.log bin/.dummy script/findsmb
+@ifPGO@	-rm -f *.gcno *.gcda *.da */*.gcno */*.gcda */*.da
 
 distclean: realclean
 	-rm -f include/stamp-h
-- 
cgit