mirror of
https://github.com/samba-team/samba.git
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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 5e57021723)
This commit is contained in:
James Peach
Gerald (Jerry) Carter
parent
e6d847d8c4
commit
e97ad44d55
@ -17,6 +17,13 @@ CFLAGS=@CFLAGS@
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CPPFLAGS=@CPPFLAGS@
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EXEEXT=@EXEEXT@
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LDFLAGS=@LDFLAGS@
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PGO_GENERATE_CFLAGS=@PGO_GENERATE_CFLAGS@
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PGO_USE_CFLAGS=@PGO_USE_CFLAGS@
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PGO_EXPERIMENT_SCRIPT=@PGO_EXPERIMENT_SCRIPT@
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PGO_LIBS=@PGO_LIBS@
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PGO_TARGET=bin/smbd
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AR=@AR@
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LDSHFLAGS=@LDSHFLAGS@ @LDFLAGS@
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WINBIND_NSS_LDSHFLAGS=@WINBIND_NSS_LDSHFLAGS@ @LDFLAGS@
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@ -793,6 +800,24 @@ cac: SHOWFLAGS bin/libmsrpc.@SHLIBEXT@ bin/libmsrpc.a
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everything: all libsmbclient debug2html smbfilter talloctort modules torture \
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$(EVERYTHING_PROGS)
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# Top level target to build $(PGO_TARGET) with profiling data. Use sub-makes to
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# make sure that parallel make does not perturb this sequence.
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@ifPGO@pgo:
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@ifPGO@ $(MAKE) pgo-generate
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@ifPGO@ $(MAKE) pgo-workload
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@ifPGO@ $(MAKE) clean
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@ifPGO@ $(MAKE) headers
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@ifPGO@ $(MAKE) pgo-use
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@ifPGO@pgo-generate:
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@ifPGO@ $(MAKE) CFLAGS="$(CFLAGS) $(PGO_GENERATE_CFLAGS)" "LIBS=$(LIBS) $(PGO_LIBS)" $(PGO_TARGET)
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@ifPGO@pgo-workload:
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@ifPGO@ $(SHELL) $(PGO_EXPERIMENT_SCRIPT)
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@ifPGO@pgo-use:
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@ifPGO@ $(MAKE) CFLAGS="$(CFLAGS) $(PGO_USE_CFLAGS)" $(PGO_TARGET)
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.SUFFIXES:
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.SUFFIXES: .c .o .@PICSUFFIX@ .lo
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@ -803,6 +828,8 @@ SHOWFLAGS:
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@echo " LDFLAGS = $(LDFLAGS)"
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@echo " PIE_CFLAGS = @PIE_CFLAGS@"
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@echo " PIE_LDFLAGS = @PIE_LDFLAGS@"
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@ifPGO@ @echo " PGO_GENERATE_CFLAGS = $(PGO_GENERATE_CFLAGS)"
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@ifPGO@ @echo " PGO_USE_CFLAGS = $(PGO_USE_CFLAGS)"
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MAKEDIR = || exec false; \
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if test -d "$$dir"; then :; else \
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@ -1615,6 +1642,7 @@ ctags:
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realclean: clean delheaders
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-rm -f config.log bin/.dummy script/findsmb
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@ifPGO@ -rm -f *.gcno *.gcda *.da */*.gcno */*.gcda */*.da
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distclean: realclean
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-rm -f include/stamp-h
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@ -13,6 +13,27 @@ if test -n "${SAMBA_VERSION_SVN_REVISION}";then
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echo "BUILD REVISION: ${SAMBA_VERSION_SVN_REVISION}"
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fi
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#################################################
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# Figure out what type of system we are building on.
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UNAME_S=`(uname -s) 2>/dev/null` || UNAME_S="unknown"
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AC_MSG_CHECKING(uname -s)
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AC_MSG_RESULT(${UNAME_S})
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UNAME_R=`(uname -r) 2>/dev/null` || UNAME_R="unknown"
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AC_MSG_CHECKING(uname -r)
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AC_MSG_RESULT(${UNAME_R})
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UNAME_M=`(uname -m) 2>/dev/null` || UNAME_M="unknown"
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AC_MSG_CHECKING(uname -m)
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AC_MSG_RESULT(${UNAME_M})
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UNAME_P=`(uname -p) 2>/dev/null` || UNAME_P="unknown"
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AC_MSG_CHECKING(uname -p)
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AC_MSG_RESULT(${UNAME_P})
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AC_CANONICAL_SYSTEM
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#################################################
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# Detect the compiler early so we know how to run
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# feature tests correctly.
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@ -309,7 +330,14 @@ AC_ARG_ENABLE(socket-wrapper,
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# if it has no value. This prevent *very* large debug binaries from occurring
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# by default.
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if test "x$CFLAGS" = x; then
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CFLAGS="-O"
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AX_CFLAGS_GCC_OPTION(-O2, CFLAGS)
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AX_CFLAGS_IRIX_OPTION(-O2, CFLAGS)
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# Make sure the MIPSPro compiler will never decide functions are too
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# big to optimise
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AX_CFLAGS_IRIX_OPTION(-OPT:Olimit=0, CFLAGS)
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AX_CFLAGS_HPUX_OPTION(-O2, CFLAGS)
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AX_CFLAGS_SUN_OPTION(-O2, CFLAGS)
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AX_CFLAGS_AIX_OPTION(-O2, CFLAGS)
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fi
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CPPFLAGS="${CPPFLAGS} -D_SAMBA_BUILD_"
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@ -352,6 +380,88 @@ then
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LIBS="$LIBS -ldmalloc"
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fi
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# Check for profile guided optimisation (PGO) support.
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AC_ARG_ENABLE(pgo,
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[ --enable-pgo=SCRIPT Compile with PGO (default=no)],
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[
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case $enableval in
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yes|no)
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AC_MSG_ERROR(the argument to --enable-pgo must be an executable script)
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esac
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samba_cv_have_pgo=no
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# Test for IRIX PGO first. Unfortunately, some of the later GCC option
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# tests can spuriously succeed with the MIPSPro compilers. Despite the
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# test succeeding, the GCC options don't work.
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if test "x$samba_cv_have_pgo" = "xno" ; then
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samba_cv_have_pgo=yes
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# The backslash below is horrible but necessary -- jpeach
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AX_CFLAGS_IRIX_OPTION("-fb_create\ samba.feedback",
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PGO_GENERATE_CFLAGS, [], [samba_cv_have_pgo=no])
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AX_CFLAGS_IRIX_OPTION("-fb_opt\ samba.feedback",
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PGO_USE_CFLAGS, [], [samba_cv_have_pgo=no])
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fi
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# Test GCC 4.x style profile flags.
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if test "x$samba_cv_have_pgo" = "xno" ; then
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samba_cv_have_pgo=yes
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AX_CFLAGS_GCC_OPTION(-fprofile-generate, PGO_GENERATE_CFLAGS,
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[], [samba_cv_have_pgo=no])
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AX_CFLAGS_GCC_OPTION(-fprofile-use, PGO_USE_CFLAGS,
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[], [samba_cv_have_pgo=no])
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fi
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# Test GCC 3.x style profile flags. This is rather more complicated so
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# we only require a minimal set of options to enable PGO.
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if test "x$samba_cv_have_pgo" = "xno" ; then
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samba_cv_have_pgo=yes
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AX_CFLAGS_GCC_OPTION(-fprofile-arcs, PGO_GENERATE_CFLAGS,
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[], [samba_cv_have_pgo=no])
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AX_CFLAGS_GCC_OPTION(-fvpt, PGO_GENERATE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-fspeculative-prefetching, PGO_GENERATE_CFLAGS,
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[], [])
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AX_CFLAGS_GCC_OPTION(-fprofile-values, PGO_GENERATE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-fbranch-probabilities, PGO_USE_CFLAGS,
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[], [samba_cv_have_pgo=no])
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AX_CFLAGS_GCC_OPTION(-fvpt, PGO_USE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-freorder-functions, PGO_USE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-fprofile-values, PGO_USE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-fspeculative-prefetching, PGO_USE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-funroll-loops, PGO_USE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-fpeel-loops, PGO_USE_CFLAGS, [], [])
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AX_CFLAGS_GCC_OPTION(-ftracer, PGO_USE_CFLAGS, [], [])
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fi
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if test -r "$enableval" ; then
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PGO_EXPERIMENT_SCRIPT="$enableval"
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else
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AC_MSG_ERROR(cannot find PGO experiment script $enableval)
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fi
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if test "x$samba_cv_have_pgo" = "xno" ; then
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ifPGO="#"
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else
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# Enable PGO targets in Makefile
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ifPGO=""
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# System-specific profiling tweaks
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case "$host_os" in
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*irix*) PGO_LIBS="$PGO_LIBS -linstr" ;;
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esac
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fi
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],
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[
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ifPGO="#"
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]
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)
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AC_SUBST(ifPGO)
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AC_SUBST(PGO_GENERATE_CFLAGS)
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AC_SUBST(PGO_USE_CFLAGS)
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AC_SUBST(PGO_EXPERIMENT_SCRIPT)
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AC_SUBST(PGO_LIBS)
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dnl Checks for programs.
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AC_PROG_INSTALL
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@ -421,24 +531,6 @@ if test x"$samba_cv_volatile" = x"yes"; then
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AC_DEFINE(HAVE_VOLATILE, 1, [Whether the C compiler understands volatile])
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fi
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UNAME_S=`(uname -s) 2>/dev/null` || UNAME_S="unknown"
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AC_MSG_CHECKING(uname -s)
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AC_MSG_RESULT(${UNAME_S})
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UNAME_R=`(uname -r) 2>/dev/null` || UNAME_R="unknown"
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AC_MSG_CHECKING(uname -r)
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AC_MSG_RESULT(${UNAME_R})
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UNAME_M=`(uname -m) 2>/dev/null` || UNAME_M="unknown"
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AC_MSG_CHECKING(uname -m)
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AC_MSG_RESULT(${UNAME_M})
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UNAME_P=`(uname -p) 2>/dev/null` || UNAME_P="unknown"
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AC_MSG_CHECKING(uname -p)
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AC_MSG_RESULT(${UNAME_P})
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AC_CANONICAL_SYSTEM
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dnl Add #include for broken IRIX header files
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case "$host_os" in
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*irix6*) AC_ADD_INCLUDE(<standards.h>)
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