diff options
| -rw-r--r-- | arch/powerpc/Makefile | 16 | ||||
| -rwxr-xr-x | arch/powerpc/tools/gcc-check-mprofile-kernel.sh | 12 | ||||
| -rwxr-xr-x | scripts/recordmcount.pl | 18 |
3 files changed, 34 insertions, 12 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 167b26a0780c..6faf1d6ad9dd 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -75,13 +75,15 @@ endif endif ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) -override LD += -EL +KBUILD_CFLAGS += -mlittle-endian +LDFLAGS += -EL LDEMULATION := lppc GNUTARGET := powerpcle MULTIPLEWORD := -mno-multiple KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect) else -override LD += -EB +KBUILD_CFLAGS += $(call cc-option,-mbig-endian) +LDFLAGS += -EB LDEMULATION := ppc GNUTARGET := powerpc MULTIPLEWORD := -mmultiple @@ -94,19 +96,19 @@ aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1) aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2 endif -cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian -cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) ifneq ($(cc-name),clang) cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align endif +cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) +cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian ifeq ($(HAS_BIARCH),y) -override AS += -a$(BITS) -override LD += -m elf$(BITS)$(LDEMULATION) -override CC += -m$(BITS) +KBUILD_CFLAGS += -m$(BITS) +KBUILD_AFLAGS += -m$(BITS) -Wl,-a$(BITS) +LDFLAGS += -m elf$(BITS)$(LDEMULATION) KBUILD_ARFLAGS += --target=elf$(BITS)-$(GNUTARGET) endif diff --git a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh index 061f8035bdbe..a7dd0e5d9f98 100755 --- a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh +++ b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh @@ -7,17 +7,21 @@ set -o pipefail # To debug, uncomment the following line # set -x +# -mprofile-kernel is only supported on 64le, so this should not be invoked +# for other targets. Therefore we can pass in -m64 and -mlittle-endian +# explicitly, to take care of toolchains defaulting to other targets. + # Test whether the compile option -mprofile-kernel exists and generates # profiling code (ie. a call to _mcount()). echo "int func() { return 0; }" | \ - $* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null | \ - grep -q "_mcount" + $* -m64 -mlittle-endian -S -x c -O2 -p -mprofile-kernel - -o - \ + 2> /dev/null | grep -q "_mcount" # Test whether the notrace attribute correctly suppresses calls to _mcount(). echo -e "#include <linux/compiler.h>\nnotrace int func() { return 0; }" | \ - $* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null | \ - grep -q "_mcount" && \ + $* -m64 -mlittle-endian -S -x c -O2 -p -mprofile-kernel - -o - \ + 2> /dev/null | grep -q "_mcount" && \ exit 1 echo "OK" diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index 191eb949d52c..fe06e77c15eb 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -266,13 +266,29 @@ if ($arch eq "x86_64") { $objcopy .= " -O elf32-sh-linux"; } elsif ($arch eq "powerpc") { + my $ldemulation; + $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\.?\\S+)"; # See comment in the sparc64 section for why we use '\w'. $function_regex = "^([0-9a-fA-F]+)\\s+<(\\.?\\w*?)>:"; $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s\\.?_mcount\$"; + if ($endian eq "big") { + $cc .= " -mbig-endian "; + $ld .= " -EB "; + $ldemulation = "ppc" + } else { + $cc .= " -mlittle-endian "; + $ld .= " -EL "; + $ldemulation = "lppc" + } if ($bits == 64) { - $type = ".quad"; + $type = ".quad"; + $cc .= " -m64 "; + $ld .= " -m elf64".$ldemulation." "; + } else { + $cc .= " -m32 "; + $ld .= " -m elf32".$ldemulation." "; } } elsif ($arch eq "arm") { |