Bug 676252 part 2 - Use a different object file extension for the first PGO build pass with GCC. r=ted

This commit is contained in:
Mike Hommey 2011-08-29 07:34:12 +02:00
parent 73e9c2d6c7
commit 7ad004360f
11 changed files with 69 additions and 8 deletions

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@ -47,6 +47,7 @@ INTERNAL_TOOLS = 1
HOST_PROGRAM = elfhack
NO_DIST_INSTALL = 1
NO_PROFILE_GUIDED_OPTIMIZE = 1
VPATH += $(topsrcdir)/build

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@ -350,7 +350,10 @@ _MSC_VER = @_MSC_VER@
DLL_PREFIX = @DLL_PREFIX@
LIB_PREFIX = @LIB_PREFIX@
OBJ_SUFFIX = @OBJ_SUFFIX@
# We do magic with OBJ_SUFFIX in config.mk, the following ensures we don't
# manually use it before config.mk inclusion
OBJ_SUFFIX = $(error config/config.mk needs to be included before using OBJ_SUFFIX)
_OBJ_SUFFIX = @OBJ_SUFFIX@
LIB_SUFFIX = @LIB_SUFFIX@
DLL_SUFFIX = @DLL_SUFFIX@
BIN_SUFFIX = @BIN_SUFFIX@

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@ -790,3 +790,21 @@ EXPAND_MKSHLIB = $(EXPAND_LIBS_EXEC) --uselist -- $(MKSHLIB)
ifdef STDCXX_COMPAT
CHECK_STDCXX = objdump -p $(1) | grep -e 'GLIBCXX_3\.4\.\(9\|[1-9][0-9]\)' > /dev/null && echo "TEST-UNEXPECTED-FAIL | | We don't want these libstdc++ symbols to be used:" && objdump -T $(1) | grep -e 'GLIBCXX_3\.4\.\(9\|[1-9][0-9]\)' && exit 1 || exit 0
endif
# autoconf.mk sets OBJ_SUFFIX to an error to avoid use before including
# this file
OBJ_SUFFIX := $(_OBJ_SUFFIX)
# PGO builds with GCC build objects with instrumentation in a first pass,
# then objects optimized, without instrumentation, in a second pass. If
# we overwrite the ojects from the first pass with those from the second,
# we end up not getting instrumentation data for better optimization on
# incremental builds. As a consequence, we use a different object suffix
# for the first pass.
ifndef NO_PROFILE_GUIDED_OPTIMIZE
ifdef MOZ_PROFILE_GENERATE
ifdef GNU_CC
OBJ_SUFFIX := i_o
endif
endif
endif

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@ -93,7 +93,7 @@ class ExpandArgsMore(ExpandArgs):
subprocess.call(ar_extract + [os.path.abspath(arg)], cwd=tmp)
objs = []
for root, dirs, files in os.walk(tmp):
objs += [relativize(os.path.join(root, f)) for f in files if os.path.splitext(f)[1] == conf.OBJ_SUFFIX]
objs += [relativize(os.path.join(root, f)) for f in files if os.path.splitext(f)[1] in [conf.OBJ_SUFFIX, '.i_o']]
newlist += objs
else:
newlist += [arg]

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@ -46,7 +46,7 @@ from expandlibs import LibDescriptor
def generate(args):
desc = LibDescriptor()
for arg in args:
if os.path.splitext(arg)[1] == conf.OBJ_SUFFIX:
if os.path.splitext(arg)[1] in [conf.OBJ_SUFFIX, '.i_o']:
desc['OBJS'].append(os.path.abspath(arg))
elif os.path.splitext(arg)[1] == conf.LIB_SUFFIX and \
(os.path.exists(arg) or os.path.exists(arg + conf.LIBS_DESC_SUFFIX)):

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@ -421,7 +421,7 @@ endif
ALL_TRASH = \
$(GARBAGE) $(TARGETS) $(OBJS) $(PROGOBJS) LOGS TAGS a.out \
$(filter-out $(ASFILES),$(OBJS:.$(OBJ_SUFFIX)=.s)) $(OBJS:.$(OBJ_SUFFIX)=.ii) \
$(OBJS:.$(OBJ_SUFFIX)=.i) \
$(OBJS:.$(OBJ_SUFFIX)=.i) $(OBJS:.$(OBJ_SUFFIX)=.i_o) \
$(HOST_PROGOBJS) $(HOST_OBJS) $(IMPORT_LIBRARY) $(DEF_FILE)\
$(EXE_DEF_FILE) so_locations _gen _stubs $(wildcard *.res) $(wildcard *.RES) \
$(wildcard *.pdb) $(CODFILE) $(MAPFILE) $(IMPORT_LIBRARY) \
@ -948,6 +948,15 @@ ifdef GNU_CC
endif
endif
endif
ifneq (,$(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE))
ifdef GNU_CC
# Force rebuilding libraries and programs in both passes because each
# pass uses different object files.
$(PROGRAM) $(SHARED_LIBRARY) $(LIBRARY): FORCE
endif
endif
endif # NO_PROFILE_GUIDED_OPTIMIZE
##############################################

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@ -177,7 +177,10 @@ _MSC_VER = @_MSC_VER@
DLL_PREFIX = @DLL_PREFIX@
LIB_PREFIX = @LIB_PREFIX@
OBJ_SUFFIX = @OBJ_SUFFIX@
# We do magic with OBJ_SUFFIX in config.mk, the following ensures we don't
# manually use it before config.mk inclusion
OBJ_SUFFIX = $(error config/config.mk needs to be included before using OBJ_SUFFIX)
_OBJ_SUFFIX = @OBJ_SUFFIX@
LIB_SUFFIX = @LIB_SUFFIX@
DLL_SUFFIX = @DLL_SUFFIX@
BIN_SUFFIX = @BIN_SUFFIX@

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@ -790,3 +790,21 @@ EXPAND_MKSHLIB = $(EXPAND_LIBS_EXEC) --uselist -- $(MKSHLIB)
ifdef STDCXX_COMPAT
CHECK_STDCXX = objdump -p $(1) | grep -e 'GLIBCXX_3\.4\.\(9\|[1-9][0-9]\)' > /dev/null && echo "TEST-UNEXPECTED-FAIL | | We don't want these libstdc++ symbols to be used:" && objdump -T $(1) | grep -e 'GLIBCXX_3\.4\.\(9\|[1-9][0-9]\)' && exit 1 || exit 0
endif
# autoconf.mk sets OBJ_SUFFIX to an error to avoid use before including
# this file
OBJ_SUFFIX := $(_OBJ_SUFFIX)
# PGO builds with GCC build objects with instrumentation in a first pass,
# then objects optimized, without instrumentation, in a second pass. If
# we overwrite the ojects from the first pass with those from the second,
# we end up not getting instrumentation data for better optimization on
# incremental builds. As a consequence, we use a different object suffix
# for the first pass.
ifndef NO_PROFILE_GUIDED_OPTIMIZE
ifdef MOZ_PROFILE_GENERATE
ifdef GNU_CC
OBJ_SUFFIX := i_o
endif
endif
endif

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@ -93,7 +93,7 @@ class ExpandArgsMore(ExpandArgs):
subprocess.call(ar_extract + [os.path.abspath(arg)], cwd=tmp)
objs = []
for root, dirs, files in os.walk(tmp):
objs += [relativize(os.path.join(root, f)) for f in files if os.path.splitext(f)[1] == conf.OBJ_SUFFIX]
objs += [relativize(os.path.join(root, f)) for f in files if os.path.splitext(f)[1] in [conf.OBJ_SUFFIX, '.i_o']]
newlist += objs
else:
newlist += [arg]

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@ -46,7 +46,7 @@ from expandlibs import LibDescriptor
def generate(args):
desc = LibDescriptor()
for arg in args:
if os.path.splitext(arg)[1] == conf.OBJ_SUFFIX:
if os.path.splitext(arg)[1] in [conf.OBJ_SUFFIX, '.i_o']:
desc['OBJS'].append(os.path.abspath(arg))
elif os.path.splitext(arg)[1] == conf.LIB_SUFFIX and \
(os.path.exists(arg) or os.path.exists(arg + conf.LIBS_DESC_SUFFIX)):

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@ -421,7 +421,7 @@ endif
ALL_TRASH = \
$(GARBAGE) $(TARGETS) $(OBJS) $(PROGOBJS) LOGS TAGS a.out \
$(filter-out $(ASFILES),$(OBJS:.$(OBJ_SUFFIX)=.s)) $(OBJS:.$(OBJ_SUFFIX)=.ii) \
$(OBJS:.$(OBJ_SUFFIX)=.i) \
$(OBJS:.$(OBJ_SUFFIX)=.i) $(OBJS:.$(OBJ_SUFFIX)=.i_o) \
$(HOST_PROGOBJS) $(HOST_OBJS) $(IMPORT_LIBRARY) $(DEF_FILE)\
$(EXE_DEF_FILE) so_locations _gen _stubs $(wildcard *.res) $(wildcard *.RES) \
$(wildcard *.pdb) $(CODFILE) $(MAPFILE) $(IMPORT_LIBRARY) \
@ -948,6 +948,15 @@ ifdef GNU_CC
endif
endif
endif
ifneq (,$(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE))
ifdef GNU_CC
# Force rebuilding libraries and programs in both passes because each
# pass uses different object files.
$(PROGRAM) $(SHARED_LIBRARY) $(LIBRARY): FORCE
endif
endif
endif # NO_PROFILE_GUIDED_OPTIMIZE
##############################################