gcc, qemuppc: Explicitly disable forcing SPE flags
G4 does not have SPE, so we make that explicit in the tune files and since we emulate G4 when building Qemu, we ensure it for qemuppc as well. GCC config for powerpc-linux is made to include SPE by default which is equivalent if the tripet was powerpc-linux*spe, this forces gcc to configure assembler to enable -mspe by default, when we do that then the kernel fails to compile with binutils 2.26, since newer assembler is smart to detect the tlbia instructions are not compatible with SPE and hence the kernel build breaks rightly. We configure the kernel for G4 as well where it enables tlbia instrucitons rightly so because it thinks its being configured for power4. So we keep the options but do not force -mspe down to assembler as default. (From OE-Core rev: 7a51776a830167e43cbd185505f62f328704e271) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -3,7 +3,7 @@ DEFAULTTUNE ?= "ppc7400"
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require conf/machine/include/powerpc/arch-powerpc.inc
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TUNEVALID[ppc7400] = "Enable ppc7400 specific processor optimizations"
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TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'ppc7400', ' -mcpu=7400', '', d)}"
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TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'ppc7400', ' -mcpu=7400 -mno-spe', '', d)}"
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AVAILTUNES += "ppc7400"
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TUNE_FEATURES_tune-ppc7400 = "m32 fpu-hard ppc7400 altivec"
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@ -5,6 +5,8 @@
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require conf/machine/include/qemu.inc
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require conf/machine/include/tune-ppc7400.inc
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TARGET_CC_KERNEL_ARCH = "-mno-spe"
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KERNEL_IMAGETYPE = "vmlinux"
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SERIAL_CONSOLES = "115200;ttyS0 115200;ttyS1"
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@ -19,11 +19,11 @@ Signed-off-by: Alexandru-Cezar Sardan <alexandru.sardan@freescale.com>
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gcc/config.gcc | 9 ++++++++-
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1 file changed, 8 insertions(+), 1 deletion(-)
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diff --git a/gcc/config.gcc b/gcc/config.gcc
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index dd0739d..3825bd5 100644
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--- a/gcc/config.gcc
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+++ b/gcc/config.gcc
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@@ -2343,7 +2343,14 @@ powerpc-*-rtems*)
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Index: gcc-5.3.0/gcc/config.gcc
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===================================================================
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--- gcc-5.3.0.orig/gcc/config.gcc
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+++ gcc-5.3.0/gcc/config.gcc
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@@ -2346,7 +2346,14 @@ powerpc-*-rtems*)
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tmake_file="${tmake_file} rs6000/t-fprules rs6000/t-rtems rs6000/t-ppccomm"
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;;
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powerpc*-*-linux*)
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@ -39,6 +39,14 @@ index dd0739d..3825bd5 100644
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extra_options="${extra_options} rs6000/sysv4.opt"
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tmake_file="${tmake_file} rs6000/t-fprules rs6000/t-ppccomm"
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extra_objs="$extra_objs rs6000-linux.o"
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--
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2.6.3
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Index: gcc-5.3.0/gcc/config/rs6000/linuxspe.h
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===================================================================
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--- gcc-5.3.0.orig/gcc/config/rs6000/linuxspe.h
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+++ gcc-5.3.0/gcc/config/rs6000/linuxspe.h
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@@ -27,6 +27,3 @@
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT MASK_STRICT_ALIGN
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#endif
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-
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-#undef ASM_DEFAULT_SPEC
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-#define ASM_DEFAULT_SPEC "-mppc -mspe -me500"
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