Automatic date update in version.in

[deliverable/binutils-gdb.git] / Makefile.tpl

diff --git a/Makefile.tpl b/Makefile.tpl
index a280a1498c00451fd55beabb7a8036b665f63bb1..84fee3dd0f796cdd89ca876bb7f3e0f13aa722ac 100644 (file)
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -415,6 +415,49 @@ CXXFLAGS = @CXXFLAGS@
 LIBCXXFLAGS = $(CXXFLAGS) -fno-implicit-templates
 GOCFLAGS = $(CFLAGS)
 
+# Pass additional PGO and LTO compiler options to the PGO build.
+BUILD_CFLAGS = $(PGO_BUILD_CFLAGS) $(PGO_BUILD_LTO_CFLAGS)
+override CFLAGS += $(BUILD_CFLAGS)
+override CXXFLAGS += $(BUILD_CFLAGS)
+
+# Additional PGO and LTO compiler options to generate profiling data
+# for the PGO build.
+PGO_BUILD_GEN_FLAGS_TO_PASS = \
+       PGO_BUILD_CFLAGS="@PGO_BUILD_GEN_CFLAGS@" \
+       PGO_BUILD_LTO_CFLAGS="@PGO_BUILD_LTO_CFLAGS@"
+
+# NB: Filter out any compiler options which may fail PGO training runs.
+PGO_BUILD_TRAINING_CFLAGS:= \
+       $(filter-out -Werror=%,$(CFLAGS))
+PGO_BUILD_TRAINING_CXXFLAGS:=\
+       $(filter-out -Werror=%,$(CXXFLAGS))
+PGO_BUILD_TRAINING_CFLAGS:= \
+       $(filter-out -Wall,$(PGO_BUILD_TRAINING_CFLAGS))
+PGO_BUILD_TRAINING_CXXFLAGS:= \
+       $(filter-out -Wall,$(PGO_BUILD_TRAINING_CXXFLAGS))
+PGO_BUILD_TRAINING_CFLAGS:= \
+       $(filter-out -specs=%,$(PGO_BUILD_TRAINING_CFLAGS))
+PGO_BUILD_TRAINING_CXXFLAGS:= \
+       $(filter-out -specs=%,$(PGO_BUILD_TRAINING_CXXFLAGS))
+PGO_BUILD_TRAINING_FLAGS_TO_PASS = \
+       PGO_BUILD_TRAINING=yes \
+       CFLAGS_FOR_TARGET="$(PGO_BUILD_TRAINING_CFLAGS)" \
+       CXXFLAGS_FOR_TARGET="$(PGO_BUILD_TRAINING_CXXFLAGS)"
+
+# Ignore "make check" errors in PGO training runs.
+PGO_BUILD_TRAINING_MFLAGS = -i
+
+# Additional PGO and LTO compiler options to use profiling data for the
+# PGO build.
+PGO_BUILD_USE_FLAGS_TO_PASS = \
+       PGO_BUILD_CFLAGS="@PGO_BUILD_USE_CFLAGS@" \
+       PGO_BUILD_LTO_CFLAGS="@PGO_BUILD_LTO_CFLAGS@"
+
+# PGO training targets for the PGO build.  FIXME: Add gold tests to
+# training.
+PGO-TRAINING-TARGETS = binutils gas gdb ld sim
+PGO_BUILD_TRAINING = $(addprefix maybe-check-,$(PGO-TRAINING-TARGETS))
+
 CREATE_GCOV = create_gcov
 
 TFLAGS =
@@ -719,6 +762,12 @@ configure-target: [+
 
 # The target built for a native non-bootstrap build.
 .PHONY: all
+
+# --enable-pgo-build enables the PGO build.
+# 1. First build with -fprofile-generate.
+# 2. Use "make maybe-check-*" to generate profiling data.
+# 3. Use "make clean" to remove the previous build.
+# 4. Rebuild with -fprofile-use.
 all:
 @if gcc-bootstrap
        [ -f stage_final ] || echo stage3 > stage_final
@@ -727,7 +776,7 @@ all:
        $(MAKE) $(RECURSE_FLAGS_TO_PASS) `cat stage_final`-bubble
 @endif gcc-bootstrap
        @: $(MAKE); $(unstage)
-       @r=`${PWD_COMMAND}`; export r; \
+       +@r=`${PWD_COMMAND}`; export r; \
        s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 @if gcc-bootstrap
        if [ -f stage_last ]; then \
@@ -735,7 +784,17 @@ all:
          $(MAKE) $(TARGET_FLAGS_TO_PASS) all-host all-target; \
        else \
 @endif gcc-bootstrap
-         $(MAKE) $(RECURSE_FLAGS_TO_PASS) all-host all-target \
+         $(MAKE) $(RECURSE_FLAGS_TO_PASS) \
+               $(PGO_BUILD_GEN_FLAGS_TO_PASS) all-host all-target \
+@if pgo-build
+       && $(MAKE) $(RECURSE_FLAGS_TO_PASS) \
+               $(PGO_BUILD_TRAINING_MFLAGS) \
+               $(PGO_BUILD_TRAINING_FLAGS_TO_PASS) \
+               $(PGO_BUILD_TRAINING) \
+       && $(MAKE) $(RECURSE_FLAGS_TO_PASS) clean \
+       && $(MAKE) $(RECURSE_FLAGS_TO_PASS) \
+               $(PGO_BUILD_USE_FLAGS_TO_PASS) all-host all-target \
+@endif pgo-build
 @if gcc-bootstrap
            ; \
        fi \