arch: arm: update compile options for DSP
This commit updates the compile options in cmake to distinguish between ARMv8-M Mainline MCUs with or withouth the optional DSP extension. A new Kconfig option: ARMV8_M_DSP, is introduced, to signify the use of an ARMv8-M MCU with DSP support. Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
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3 changed files with 20 additions and 7 deletions
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@ -1,11 +1,12 @@
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zephyr_cc_option_ifdef(CONFIG_LTO -flto)
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set(ARCH_FOR_cortex-m0 armv6-m )
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set(ARCH_FOR_cortex-m0plus armv6-m )
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set(ARCH_FOR_cortex-m3 armv7-m )
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set(ARCH_FOR_cortex-m4 armv7e-m )
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set(ARCH_FOR_cortex-m23 armv8-m.base)
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set(ARCH_FOR_cortex-m33 armv8-m.main)
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set(ARCH_FOR_cortex-m0 armv6-m )
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set(ARCH_FOR_cortex-m0plus armv6-m )
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set(ARCH_FOR_cortex-m3 armv7-m )
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set(ARCH_FOR_cortex-m4 armv7e-m )
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set(ARCH_FOR_cortex-m23 armv8-m.base )
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set(ARCH_FOR_cortex-m33 armv8-m.main+dsp)
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set(ARCH_FOR_cortex-m33+nodsp armv8-m.main )
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set_property(GLOBAL PROPERTY E_KERNEL_ENTRY -e${CONFIG_KERNEL_ENTRY})
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@ -252,6 +252,14 @@ config ARMV7_M_ARMV8_M_FP
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implementation, or the use of an ARMv8-M processor
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implementation supporting the Floating-Point Extension.
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config ARMV8_M_DSP
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bool
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# Omit prompt to signify "hidden" option
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depends on ARMV8_M_MAINLINE
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help
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This option signifies the use of an ARMv8-M processor
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implementation supporting the DSP Extension.
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menu "ARM Cortex-M options"
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depends on CPU_CORTEX_M
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@ -15,7 +15,11 @@ if("${ARCH}" STREQUAL "arm")
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elseif(CONFIG_CPU_CORTEX_M23)
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set(GCC_M_CPU cortex-m23)
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elseif(CONFIG_CPU_CORTEX_M33)
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set(GCC_M_CPU cortex-m33)
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if (CONFIG_ARMV8_M_DSP)
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set(GCC_M_CPU cortex-m33)
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else()
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set(GCC_M_CPU cortex-m33+nodsp)
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endif()
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else()
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message(FATAL_ERROR "Expected CONFIG_CPU_CORTEX_x to be defined")
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endif()
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