arc: emsdp: Add more platform-specific compiler options

Even though EM SDP is FPGA-based board and different FPGA images (known as .bit-files) are awailable for the board still there's a common subset of options we may rely on for all configs. These are: * Normalizer * Swap instructions * Simple multiplier * Barrel-shifter * Floating-point unit * Shorter instructions (code density) This among other improvements allows to compile code with 64-bit divisions, see [1]. [1] https://patchwork.ozlabs.org/patch/1156541/ Signed-off-by: Alexey Brodkin <[email protected]> Cc: Kever Yang <[email protected]>
imaami · Sep 3, 2019 · 968b98b · 968b98b
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commit 968b98b
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diff --git a/board/synopsys/emsdp/config.mk b/board/synopsys/emsdp/config.mk
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+PLATFORM_CPPFLAGS += -mlittle-endian -mnorm -mswap -mmpy-option=3 \
+                     -mbarrel-shifter -mfpu=fpuda_all -mcode-density