39 lines
1 KiB
C
39 lines
1 KiB
C
/* Some common compiler macros
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*
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* Not esp8266-specific.
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*
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* Part of esp-open-rtos
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* Copyright (C) 2015 Superhouse Automation Pty Ltd
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* BSD Licensed as described in the file LICENSE
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*/
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#ifndef _COMMON_MACROS_H
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#define _COMMON_MACROS_H
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#define UNUSED __attributed((unused))
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#ifndef BIT
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#define BIT(X) (1<<(X))
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#endif
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/* Use this macro to store constant values in IROM flash instead
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of having them loaded into rodata (which resides in DRAM)
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Unlike the ESP8266 SDK you don't need an attribute like this for
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standard functions. They're stored in flash by default. But
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variables need them.
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Important to note: IROM flash can only be accessed via 32-bit word
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aligned reads. It's up to the user of this attribute to ensure this.
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*/
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#ifdef __cplusplus
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#define IROM __attribute__((section(".irom0.literal")))
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#else
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#define IROM __attribute__((section(".irom0.literal"))) const
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#endif
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#define INLINED inline static __attribute__((always_inline)) __attribute__((unused))
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#define IRAM __attribute__((section(".iram1.text")))
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#endif
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