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2367b02642
arch/m68k/Makefile computes lots of unneeded cc-option calls. For example, if CONFIG_M5441x is not defined, there is not point in evaluating the following compiler flag. cpuflags-$(CONFIG_M5441x) := $(call cc-option,-mcpu=54455,-mcfv4e) The result is set to cpuflags-, then thrown away. The right hand side of ':=' is immediately expanded. Hence, all of the 16 calls for cc-option are evaluated. This is expensive since cc-option invokes the compiler. This occurs even if you are not attempting to build anything, like 'make ARCH=m68k help'. Use '=' to expand the value _lazily_. The evaluation for cc-option is delayed until $(cpuflags-y) is expanded. So, the cc-option test happens just once at most. This commit mimics tune-y of arch/arm/Makefile. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Greg Ungerer <gerg@linux-m68k.org> Link: https://lore.kernel.org/r/20200526123810.301667-3-masahiroy@kernel.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> |
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| .. | ||
| 68000 | ||
| amiga | ||
| apollo | ||
| atari | ||
| bvme6000 | ||
| coldfire | ||
| configs | ||
| emu | ||
| fpsp040 | ||
| hp300 | ||
| ifpsp060 | ||
| include | ||
| kernel | ||
| lib | ||
| mac | ||
| math-emu | ||
| mm | ||
| mvme16x | ||
| mvme147 | ||
| q40 | ||
| sun3 | ||
| sun3x | ||
| tools/amiga | ||
| install.sh | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.bus | ||
| Kconfig.cpu | ||
| Kconfig.debug | ||
| Kconfig.devices | ||
| Kconfig.machine | ||
| Makefile | ||