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Revert MIPS: Loongson: Fix build error when make modules_install

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Revert commit 531b3d1195 ("MIPS: Loongson: Fix build error when make
modules_install"), which made `-march=loongson2e', `-march=loongson2f',
and `-march=loongson3a' compilation options probed for even though GCC
has supported them since 4.4.0, 4.4.0, and 4.6.0 respectively, which is
below our current minimum requirement of 5.1, in an attempt to work
around for the `cc-option' `make' function being undefined with `make'
targets that do not use the compiler.  The workaround has now been made
obsolete, by querying the `need-compiler' variable instead so as to make
sure the compiler isn't called for non-build targets.

Verified with `fuloong2e_defconfig' and the `modules_install' target.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Maciej W. Rozycki 2023-07-18 15:37:27 +01:00 committed by Thomas Bogendoerfer
parent 4fe4a6374c
commit 0859bdf1ac
1 changed files with 7 additions and 3 deletions
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10
arch/mips/Makefile
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@ -181,12 +181,16 @@ endif
cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
cflags-$(CONFIG_CPU_LOONGSON2E) += $(call cc-option,-march=loongson2e) -Wa,--trap
cflags-$(CONFIG_CPU_LOONGSON2F) += $(call cc-option,-march=loongson2f) -Wa,--trap
cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-option,-march=loongson3a,-march=mips64r2) -Wa,--trap
cflags-$(CONFIG_CPU_LOONGSON2E) += -march=loongson2e -Wa,--trap
cflags-$(CONFIG_CPU_LOONGSON2F) += -march=loongson2f -Wa,--trap
# Some -march= flags enable MMI instructions, and GCC complains about that
# support being enabled alongside -msoft-float. Thus explicitly disable MMI.
cflags-$(CONFIG_CPU_LOONGSON2EF) += $(call cc-option,-mno-loongson-mmi)
ifdef CONFIG_CPU_LOONGSON64
cflags-$(CONFIG_CPU_LOONGSON64) += -Wa,--trap
cflags-$(CONFIG_CC_IS_GCC) += -march=loongson3a
cflags-$(CONFIG_CC_IS_CLANG) += -march=mips64r2
endif
cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-option,-mno-loongson-mmi)
cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)