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[MIPS] Add PIC-related switches to PLATFORM_{CPP,LD}FLAGS and cleanup
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
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2 changed files with 26 additions and 1 deletions
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@ -35,6 +35,6 @@ else
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ENDIANNESS = -EB
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endif
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MIPSFLAGS += $(ENDIANNESS) -mabicalls
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MIPSFLAGS += $(ENDIANNESS)
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PLATFORM_CPPFLAGS += $(MIPSFLAGS)
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@ -22,3 +22,28 @@
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#
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PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
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#
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# From Linux arch/mips/Makefile
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#
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# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
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# code since it only slows down the whole thing. At some point we might make
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# use of global pointer optimizations but their use of $28 conflicts with
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# the current pointer optimization.
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#
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# The DECStation requires an ECOFF kernel for remote booting, other MIPS
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# machines may also. Since BFD is incredibly buggy with respect to
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# crossformat linking we rely on the elf2ecoff tool for format conversion.
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#
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# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
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# cflags-y += -msoft-float
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# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
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# MODFLAGS += -mlong-calls
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#
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#
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# Meanwhile, U-Boot rely on PIC. We add proper switches explicitly.
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#
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PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic -pipe
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PLATFORM_CPPFLAGS += -msoft-float
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PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib
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