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Commit b6bd8ead authored by Gabriele M's avatar Gabriele M Committed by Luca Stefani
Browse files

build: Conditionally disable ccache for modules with FDO enabled 

ccache supports the compiler option -fprofile-use since v3.2. If the
current wrapper is ccache v3.2 or newer, don't disable it when FDO
is turned on.

Change-Id: I506010173f60b791eae0d65afeac36995c57dbe6
parent f246c648

core/binary.mk

+26 −4
Original line number Diff line number Diff line
@@ -313,11 +313,33 @@ ifneq ($(filter true always, $(LOCAL_FDO_SUPPORT)),) 
    my_cflags += $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_FDO_OPTIMIZE_CFLAGS)

    my_fdo_build := true

  endif

  # Disable ccache (or other compiler wrapper) except gomacc, which

  # can handle -fprofile-use properly.

  # Disable ccache (or other compiler wrapper) except gomacc, unless

  # it can handle -fprofile-use properly.



  # ccache supports -fprofile-use as of version 3.2. Parse the version output

  # of each wrapper to determine if it's ccache 3.2 or newer.

  is_cc_ccache := $(shell if [ "`$(my_cc_wrapper) -V 2>/dev/null | head -1 | cut -d' ' -f1`" = ccache ]; then echo true; fi)

  ifeq ($(is_cc_ccache),true)

    cc_ccache_version := $(shell $(my_cc_wrapper) -V | head -1 | grep -o '[[:digit:]]\+\.[[:digit:]]\+')

    vmajor := $(shell echo $(cc_ccache_version) | cut -d'.' -f1)

    vminor := $(shell echo $(cc_ccache_version) | cut -d'.' -f2)

    cc_ccache_ge_3_2 = $(shell if [ $(vmajor) -gt 3 -o $(vmajor) -eq 3 -a $(vminor) -ge 2 ]; then echo true; fi)

  endif

  is_cxx_ccache := $(shell if [ "`$(my_cxx_wrapper) -V 2>/dev/null | head -1 | cut -d' ' -f1`" = ccache ]; then echo true; fi)

  ifeq ($(is_cxx_ccache),true)

    cxx_ccache_version := $(shell $(my_cxx_wrapper) -V | head -1 | grep -o '[[:digit:]]\+\.[[:digit:]]\+')

    vmajor := $(shell echo $(cxx_ccache_version) | cut -d'.' -f1)

    vminor := $(shell echo $(cxx_ccache_version) | cut -d'.' -f2)

    cxx_ccache_ge_3_2 = $(shell if [ $(vmajor) -gt 3 -o $(vmajor) -eq 3 -a $(vminor) -ge 2 ]; then echo true; fi)

  endif



  ifneq ($(cc_ccache_ge_3_2),true)

    my_cc_wrapper := $(filter $(GOMA_CC),$(my_cc_wrapper))

  endif

  ifneq ($(cxx_ccache_ge_3_2),true)

    my_cxx_wrapper := $(filter $(GOMA_CC),$(my_cxx_wrapper))

  endif

endif



###########################################################

## Explicitly declare assembly-only __ASSEMBLY__ macro for