Support the PGO build for binutils+gdb
Add the --enable-pgo-build[=lto] configure option. When binutils+gdb is not built together with GCC, --enable-pgo-build enables the PGO build: 1. First build with -fprofile-generate. 2. Use "make maybe-check-*" to generate profiling data and pass -i to make to ignore errors when generating profiling data. 3. Use "make clean" to remove the previous build. 4. Rebuild with -fprofile-use. With --enable-pgo-build=lto, -flto=jobserver -ffat-lto-objects are used together with -fprofile-generate and -fprofile-use. Add '+' to the command line for recursive make to support -flto=jobserver -ffat-lto-objects. NB: --enable-pgo-build=lto enables the PGO build with LTO while --enable-lto enables LTO support in toolchain. PR binutils/26766 * Makefile.tpl (BUILD_CFLAGS): New. (CFLAGS): Append $(BUILD_CFLAGS). (CXXFLAGS): Likewise. (PGO_BUILD_GEN_FLAGS_TO_PASS): New. (PGO_BUILD_TRAINING_CFLAGS): Likewise. (PGO_BUILD_TRAINING_CXXFLAGS): Likewise. (PGO_BUILD_TRAINING_FLAGS_TO_PASS): Likewise. (PGO_BUILD_TRAINING_MFLAGS): Likewise. (PGO_BUILD_USE_FLAGS_TO_PASS): Likewise. (PGO-TRAINING-TARGETS): Likewise. (PGO_BUILD_TRAINING): Likewise. (all): Add '+' to the command line for recursive make. Support the PGO build. * configure.ac: Add --enable-pgo-build[=lto]. AC_SUBST PGO_BUILD_GEN_CFLAGS, PGO_BUILD_USE_CFLAGS and PGO_BUILD_LTO_CFLAGS. Enable the PGO build in Makefile. * Makefile.in: Regenerated. * configure: Likewise.
This commit is contained in:
H.J. Lu
parent
a4966cd965
commit
af019bfde9
22
ChangeLog
22
ChangeLog
@ -1,3 +1,25 @@
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2021-01-09 H.J. Lu <hongjiu.lu@intel.com>
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PR binutils/26766
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* Makefile.tpl (BUILD_CFLAGS): New.
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(CFLAGS): Append $(BUILD_CFLAGS).
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(CXXFLAGS): Likewise.
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(PGO_BUILD_GEN_FLAGS_TO_PASS): New.
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(PGO_BUILD_TRAINING_CFLAGS): Likewise.
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(PGO_BUILD_TRAINING_CXXFLAGS): Likewise.
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(PGO_BUILD_TRAINING_FLAGS_TO_PASS): Likewise.
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(PGO_BUILD_TRAINING_MFLAGS): Likewise.
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(PGO_BUILD_USE_FLAGS_TO_PASS): Likewise.
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(PGO-TRAINING-TARGETS): Likewise.
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(PGO_BUILD_TRAINING): Likewise.
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(all): Add '+' to the command line for recursive make. Support
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the PGO build.
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* configure.ac: Add --enable-pgo-build[=lto].
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AC_SUBST PGO_BUILD_GEN_CFLAGS, PGO_BUILD_USE_CFLAGS and
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PGO_BUILD_LTO_CFLAGS. Enable the PGO build in Makefile.
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* Makefile.in: Regenerated.
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* configure: Likewise.
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2021-01-09 H.J. Lu <hongjiu.lu@intel.com>
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* Makefile.tpl (AR): Add @AR_PLUGIN_OPTION@
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63
Makefile.in
63
Makefile.in
@ -412,6 +412,49 @@ CXXFLAGS = @CXXFLAGS@
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LIBCXXFLAGS = $(CXXFLAGS) -fno-implicit-templates
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GOCFLAGS = $(CFLAGS)
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# Pass additional PGO and LTO compiler options to the PGO build.
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BUILD_CFLAGS = $(PGO_BUILD_CFLAGS) $(PGO_BUILD_LTO_CFLAGS)
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override CFLAGS += $(BUILD_CFLAGS)
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override CXXFLAGS += $(BUILD_CFLAGS)
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# Additional PGO and LTO compiler options to generate profiling data
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# for the PGO build.
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PGO_BUILD_GEN_FLAGS_TO_PASS = \
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PGO_BUILD_CFLAGS="@PGO_BUILD_GEN_CFLAGS@" \
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PGO_BUILD_LTO_CFLAGS="@PGO_BUILD_LTO_CFLAGS@"
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# NB: Filter out any compiler options which may fail PGO training runs.
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PGO_BUILD_TRAINING_CFLAGS:= \
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$(filter-out -Werror=%,$(CFLAGS))
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PGO_BUILD_TRAINING_CXXFLAGS:=\
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$(filter-out -Werror=%,$(CXXFLAGS))
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PGO_BUILD_TRAINING_CFLAGS:= \
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$(filter-out -Wall,$(PGO_BUILD_TRAINING_CFLAGS))
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PGO_BUILD_TRAINING_CXXFLAGS:= \
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$(filter-out -Wall,$(PGO_BUILD_TRAINING_CXXFLAGS))
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PGO_BUILD_TRAINING_CFLAGS:= \
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$(filter-out -specs=%,$(PGO_BUILD_TRAINING_CFLAGS))
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PGO_BUILD_TRAINING_CXXFLAGS:= \
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$(filter-out -specs=%,$(PGO_BUILD_TRAINING_CXXFLAGS))
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PGO_BUILD_TRAINING_FLAGS_TO_PASS = \
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PGO_BUILD_TRAINING=yes \
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CFLAGS_FOR_TARGET="$(PGO_BUILD_TRAINING_CFLAGS)" \
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CXXFLAGS_FOR_TARGET="$(PGO_BUILD_TRAINING_CXXFLAGS)"
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# Ignore "make check" errors in PGO training runs.
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PGO_BUILD_TRAINING_MFLAGS = -i
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# Additional PGO and LTO compiler options to use profiling data for the
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# PGO build.
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PGO_BUILD_USE_FLAGS_TO_PASS = \
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PGO_BUILD_CFLAGS="@PGO_BUILD_USE_CFLAGS@" \
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PGO_BUILD_LTO_CFLAGS="@PGO_BUILD_LTO_CFLAGS@"
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# PGO training targets for the PGO build. FIXME: Add gold tests to
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# training.
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PGO-TRAINING-TARGETS = binutils gas gdb ld sim
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PGO_BUILD_TRAINING = $(addprefix maybe-check-,$(PGO-TRAINING-TARGETS))
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CREATE_GCOV = create_gcov
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TFLAGS =
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@ -985,6 +1028,12 @@ configure-target: \
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# The target built for a native non-bootstrap build.
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.PHONY: all
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# --enable-pgo-build enables the PGO build.
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# 1. First build with -fprofile-generate.
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# 2. Use "make maybe-check-*" to generate profiling data.
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# 3. Use "make clean" to remove the previous build.
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# 4. Rebuild with -fprofile-use.
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all:
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@if gcc-bootstrap
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[ -f stage_final ] || echo stage3 > stage_final
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@ -993,7 +1042,7 @@ all:
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$(MAKE) $(RECURSE_FLAGS_TO_PASS) `cat stage_final`-bubble
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@endif gcc-bootstrap
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@: $(MAKE); $(unstage)
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@r=`${PWD_COMMAND}`; export r; \
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+@r=`${PWD_COMMAND}`; export r; \
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s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
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@if gcc-bootstrap
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if [ -f stage_last ]; then \
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@ -1001,7 +1050,17 @@ all:
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$(MAKE) $(TARGET_FLAGS_TO_PASS) all-host all-target; \
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else \
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@endif gcc-bootstrap
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$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-host all-target \
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$(MAKE) $(RECURSE_FLAGS_TO_PASS) \
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$(PGO_BUILD_GEN_FLAGS_TO_PASS) all-host all-target \
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@if pgo-build
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&& $(MAKE) $(RECURSE_FLAGS_TO_PASS) \
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$(PGO_BUILD_TRAINING_MFLAGS) \
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$(PGO_BUILD_TRAINING_FLAGS_TO_PASS) \
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$(PGO_BUILD_TRAINING) \
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&& $(MAKE) $(RECURSE_FLAGS_TO_PASS) clean \
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&& $(MAKE) $(RECURSE_FLAGS_TO_PASS) \
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$(PGO_BUILD_USE_FLAGS_TO_PASS) all-host all-target \
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@endif pgo-build
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@if gcc-bootstrap
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; \
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fi \
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58
Makefile.tpl
58
Makefile.tpl
@ -415,6 +415,45 @@ CXXFLAGS = @CXXFLAGS@
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LIBCXXFLAGS = $(CXXFLAGS) -fno-implicit-templates
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GOCFLAGS = $(CFLAGS)
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# Pass additional PGO and LTO compiler options to the PGO build.
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BUILD_CFLAGS = $(PGO_BUILD_CFLAGS) $(PGO_BUILD_LTO_CFLAGS)
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override CFLAGS += $(BUILD_CFLAGS)
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override CXXFLAGS += $(BUILD_CFLAGS)
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# Additional PGO and LTO compiler options to generate profiling data
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# for the PGO build.
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PGO_BUILD_GEN_FLAGS_TO_PASS = \
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PGO_BUILD_CFLAGS="@PGO_BUILD_GEN_CFLAGS@" \
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PGO_BUILD_LTO_CFLAGS="@PGO_BUILD_LTO_CFLAGS@"
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# NB: Filter out any compiler options which may fail PGO training runs.
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PGO_BUILD_TRAINING_CFLAGS:= \
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$(filter-out -Werror=%,$(CFLAGS))
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PGO_BUILD_TRAINING_CXXFLAGS:=\
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$(filter-out -Werror=%,$(CXXFLAGS))
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PGO_BUILD_TRAINING_CFLAGS:= \
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$(filter-out -Wall,$(PGO_BUILD_TRAINING_CFLAGS))
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PGO_BUILD_TRAINING_CXXFLAGS:= \
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$(filter-out -Wall,$(PGO_BUILD_TRAINING_CXXFLAGS))
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PGO_BUILD_TRAINING_CFLAGS:= \
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$(filter-out -specs=%,$(PGO_BUILD_TRAINING_CFLAGS))
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PGO_BUILD_TRAINING_CXXFLAGS:= \
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$(filter-out -specs=%,$(PGO_BUILD_TRAINING_CXXFLAGS))
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PGO_BUILD_TRAINING_FLAGS_TO_PASS = \
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CFLAGS_FOR_TARGET="$(PGO_BUILD_TRAINING_CFLAGS)" \
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CXXFLAGS_FOR_TARGET="$(PGO_BUILD_TRAINING_CXXFLAGS)"
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# Additional PGO and LTO compiler options to use profiling data for the
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# PGO build.
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PGO_BUILD_USE_FLAGS_TO_PASS = \
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PGO_BUILD_CFLAGS="@PGO_BUILD_USE_CFLAGS@" \
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PGO_BUILD_LTO_CFLAGS="@PGO_BUILD_LTO_CFLAGS@"
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# PGO training targets for the PGO build. FIXME: Add gold tests to
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# training.
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PGO-TRAINING-TARGETS = binutils gas gdb ld sim
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PGO_BUILD_TRAINING = $(addprefix maybe-check-,$(PGO-TRAINING-TARGETS))
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CREATE_GCOV = create_gcov
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TFLAGS =
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@ -719,6 +758,12 @@ configure-target: [+
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# The target built for a native non-bootstrap build.
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.PHONY: all
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# --enable-pgo-build enables the PGO build.
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# 1. First build with -fprofile-generate.
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# 2. Use "make maybe-check-*" to generate profiling data.
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# 3. Use "make clean" to remove the previous build.
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# 4. Rebuild with -fprofile-use.
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all:
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@if gcc-bootstrap
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[ -f stage_final ] || echo stage3 > stage_final
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@ -727,7 +772,7 @@ all:
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$(MAKE) $(RECURSE_FLAGS_TO_PASS) `cat stage_final`-bubble
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@endif gcc-bootstrap
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@: $(MAKE); $(unstage)
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@r=`${PWD_COMMAND}`; export r; \
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+@r=`${PWD_COMMAND}`; export r; \
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s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
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@if gcc-bootstrap
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if [ -f stage_last ]; then \
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@ -735,7 +780,16 @@ all:
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$(MAKE) $(TARGET_FLAGS_TO_PASS) all-host all-target; \
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else \
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@endif gcc-bootstrap
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$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-host all-target \
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$(MAKE) $(RECURSE_FLAGS_TO_PASS) \
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$(PGO_BUILD_GEN_FLAGS_TO_PASS) all-host all-target \
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@if pgo-build
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&& $(MAKE) $(RECURSE_FLAGS_TO_PASS) \
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$(PGO_BUILD_TRAINING_FLAGS_TO_PASS) \
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$(PGO_BUILD_TRAINING) \
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&& $(MAKE) $(RECURSE_FLAGS_TO_PASS) clean \
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&& $(MAKE) $(RECURSE_FLAGS_TO_PASS) \
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$(PGO_BUILD_USE_FLAGS_TO_PASS) all-host all-target \
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@endif pgo-build
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@if gcc-bootstrap
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; \
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fi \
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100
configure
vendored
100
configure
vendored
@ -692,6 +692,9 @@ extra_mpc_gmp_configure_flags
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extra_mpfr_configure_flags
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gmpinc
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gmplibs
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PGO_BUILD_LTO_CFLAGS
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PGO_BUILD_USE_CFLAGS
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PGO_BUILD_GEN_CFLAGS
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do_compare
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GNATMAKE
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GNATBIND
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@ -792,6 +795,7 @@ enable_libssp
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enable_libstdcxx
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enable_liboffloadmic
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enable_bootstrap
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enable_pgo_build
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with_mpc
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with_mpc_include
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with_mpc_lib
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@ -1522,6 +1526,8 @@ Optional Features:
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--enable-liboffloadmic=ARG
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build liboffloadmic [ARG={no,host,target}]
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--enable-bootstrap enable bootstrapping [yes if native build]
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--enable-pgo-build[=lto]
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enable the PGO build
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--disable-isl-version-check
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disable check for isl version
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--enable-lto enable link time optimization support
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@ -5422,6 +5428,91 @@ if test "$enable_bootstrap:$GXX" = "yes:yes"; then
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CXX="$CXX -std=gnu++98"
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fi
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# Check whether --enable-pgo-build was given.
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if test "${enable_pgo_build+set}" = set; then :
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enableval=$enable_pgo_build; enable_pgo_build=$enableval
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else
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enable_pgo_build=no
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fi
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# Issue errors and warnings for invalid/strange PGO build combinations.
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case "$have_compiler:$host:$target:$enable_pgo_build" in
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*:*:*:no) ;;
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# Allow the PGO build only if we aren't building a compiler and
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# we are in a native configuration.
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no:$build:$build:yes | no:$build:$build:lto) ;;
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# Disallow the PGO bootstrap if we are building a compiler.
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yes:*:*:yes | yes:*:*:lto)
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as_fn_error $? "cannot perform the PGO bootstrap when building a compiler" "$LINENO" 5 ;;
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*)
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as_fn_error $? "invalid option for --enable-pgo-build" "$LINENO" 5
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;;
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esac
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if test "$enable_pgo_build" != "no"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -fprofile-generate" >&5
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$as_echo_n "checking whether the compiler supports -fprofile-generate... " >&6; }
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old_CFLAGS="$CFLAGS"
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PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
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CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int foo;
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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else
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PGO_BUILD_GEN_CFLAGS=
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CFLAGS="$old_CFLAGS"
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if test -n "$PGO_BUILD_GEN_CFLAGS"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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PGO_BUILD_USE_CFLAGS="-fprofile-use"
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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as_fn_error $? "cannot perform the PGO build without -fprofile-generate" "$LINENO" 5
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fi
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if test "$enable_pgo_build" = "lto"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -flto=jobserver -ffat-lto-objects" >&5
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$as_echo_n "checking whether the compiler supports -flto=jobserver -ffat-lto-objects... " >&6; }
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old_CFLAGS="$CFLAGS"
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PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
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CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int foo;
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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else
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PGO_BUILD_LTO_CFLAGS=
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CFLAGS="$old_CFLAGS"
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if test -n "$PGO_BUILD_LTO_CFLAGS"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: LTO is disabled for the PGO build" >&5
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$as_echo "$as_me: WARNING: LTO is disabled for the PGO build" >&2;}
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fi
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fi
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fi
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# Used for setting $lt_cv_objdir
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
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$as_echo_n "checking for objdir... " >&6; }
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@ -5611,8 +5702,7 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
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# Check for the recommended and required versions of GMP.
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for the correct version of gmp.h" >&5
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$as_echo_n "checking for the correct version of gmp.h... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include "gmp.h"
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int
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@ -7331,6 +7421,12 @@ extrasub_target="$extrasub_target
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/^@unless /d
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/^@endunless /d"
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if test "$enable_pgo_build" != "no"; then
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extrasub_build="$extrasub_build
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/^@if pgo-build\$/d
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/^@endif pgo-build\$/d"
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fi
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# Create the serialization dependencies. This uses a temporary file.
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# Check whether --enable-serial-configure was given.
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65
configure.ac
65
configure.ac
@ -1375,6 +1375,65 @@ if test "$enable_bootstrap:$GXX" = "yes:yes"; then
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CXX="$CXX -std=gnu++98"
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fi
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AC_ARG_ENABLE([pgo-build],
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[AS_HELP_STRING([--enable-pgo-build[[=lto]]],
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[enable the PGO build])],
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[enable_pgo_build=$enableval],
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[enable_pgo_build=no])
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# Issue errors and warnings for invalid/strange PGO build combinations.
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case "$have_compiler:$host:$target:$enable_pgo_build" in
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*:*:*:no) ;;
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# Allow the PGO build only if we aren't building a compiler and
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# we are in a native configuration.
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no:$build:$build:yes | no:$build:$build:lto) ;;
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# Disallow the PGO bootstrap if we are building a compiler.
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yes:*:*:yes | yes:*:*:lto)
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AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;;
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*)
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AC_MSG_ERROR([invalid option for --enable-pgo-build])
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;;
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esac
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if test "$enable_pgo_build" != "no"; then
|
||||
AC_MSG_CHECKING([whether the compiler supports -fprofile-generate])
|
||||
old_CFLAGS="$CFLAGS"
|
||||
PGO_BUILD_GEN_CFLAGS="-fprofile-generate"
|
||||
CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS"
|
||||
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
|
||||
[PGO_BUILD_GEN_CFLAGS=])
|
||||
CFLAGS="$old_CFLAGS"
|
||||
if test -n "$PGO_BUILD_GEN_CFLAGS"; then
|
||||
AC_MSG_RESULT([yes])
|
||||
PGO_BUILD_USE_CFLAGS="-fprofile-use"
|
||||
else
|
||||
AC_MSG_RESULT([no])
|
||||
AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate])
|
||||
fi
|
||||
|
||||
if test "$enable_pgo_build" = "lto"; then
|
||||
AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects])
|
||||
old_CFLAGS="$CFLAGS"
|
||||
PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects"
|
||||
CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS"
|
||||
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],,
|
||||
[PGO_BUILD_LTO_CFLAGS=])
|
||||
CFLAGS="$old_CFLAGS"
|
||||
if test -n "$PGO_BUILD_LTO_CFLAGS"; then
|
||||
AC_MSG_RESULT([yes])
|
||||
else
|
||||
AC_MSG_RESULT([no])
|
||||
AC_MSG_WARN([LTO is disabled for the PGO build])
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
AC_SUBST(PGO_BUILD_GEN_CFLAGS)
|
||||
AC_SUBST(PGO_BUILD_USE_CFLAGS)
|
||||
AC_SUBST(PGO_BUILD_LTO_CFLAGS)
|
||||
|
||||
# Used for setting $lt_cv_objdir
|
||||
_LT_CHECK_OBJDIR
|
||||
|
||||
@ -2847,6 +2906,12 @@ extrasub_target="$extrasub_target
|
||||
/^@unless /d
|
||||
/^@endunless /d"
|
||||
|
||||
if test "$enable_pgo_build" != "no"; then
|
||||
extrasub_build="$extrasub_build
|
||||
/^@if pgo-build\$/d
|
||||
/^@endif pgo-build\$/d"
|
||||
fi
|
||||
|
||||
# Create the serialization dependencies. This uses a temporary file.
|
||||
|
||||
AC_ARG_ENABLE([serial-configure],
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user