c++: Add extern "C" { } block to header files

Adds extern "C" { } blocks to header files so that they can be
safely used by C++ source files.

Change-Id: Ia4db0c36a5dac5d3de351184a297d2af0df64532
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>

arch/arc/core/swap_macros.h

@@ -24,6 +24,10 @@
 #include <toolchain.h>
 #include <arch/cpu.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 
 /* entering this macro, current is in r2 */
@@ -159,4 +163,9 @@
 .endm
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /*  _SWAP_MACROS__H_ */

arch/arc/include/v2/cache.h

@@ -27,6 +27,10 @@
 
 #include <arch/cpu.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 
 #define CACHE_ENABLE 0x00
@@ -49,4 +53,9 @@ static ALWAYS_INLINE void _icache_setup(void)
 }
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCV2_CACHE__H_ */

arch/arc/include/v2/irq.h

@@ -25,6 +25,10 @@
 #ifndef _ARCV2_IRQ__H_
 #define _ARCV2_IRQ__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define _ARC_V2_AUX_IRQ_CTRL_BLINK (1 << 9)
 #define _ARC_V2_AUX_IRQ_CTRL_LOOP_REGS (1 << 10)
 #define _ARC_V2_AUX_IRQ_CTRL_14_REGS 7
@@ -60,4 +64,9 @@ static ALWAYS_INLINE void _irq_setup(void)
 }
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCV2_IRQ__H_ */

arch/arc/include/vector_table.h

@@ -31,6 +31,10 @@
 #ifndef _VECTOR_TABLE__H_
 #define _VECTOR_TABLE__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define EXC_EV_TRAP	0x9
 
 #ifdef _ASMLANGUAGE
@@ -79,4 +83,8 @@ extern void __ev_maligned(void);
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _VECTOR_TABLE__H_ */

arch/arm/core/cortex_m/vector_table.h

@@ -31,6 +31,10 @@
 #ifndef _VECTOR_TABLE__H_
 #define _VECTOR_TABLE__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 
 #include <board.h>
@@ -61,4 +65,8 @@ GTEXT(_isr_wrapper)
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _VECTOR_TABLE__H_ */

arch/arm/include/cortex_m/asm_inline_gcc.h

@@ -19,6 +19,10 @@
 #ifndef _ASM_INLINE_GCC_H
 #define _ASM_INLINE_GCC_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * The file must not be included directly
  * Include asm_inline.h instead
@@ -57,4 +61,9 @@ static ALWAYS_INLINE void _MspSet(uint32_t msp /* value to store in MSP */
 }
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ASM_INLINE_GCC_H */

arch/arm/include/cortex_m/exc.h

@@ -27,6 +27,10 @@
 #include <arch/cpu.h>
 #include <asm_inline.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 
 /* nothing */
@@ -80,4 +84,9 @@ static ALWAYS_INLINE void _ExcSetup(void)
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
+
 #endif /* _ARM_CORTEXM_ISR__H_ */

arch/arm/include/cortex_m/stack.h

@@ -27,6 +27,10 @@
 #include <nano_private.h>
 #include <asm_inline.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef CONFIG_STACK_ALIGN_DOUBLE_WORD
 #define STACK_ALIGN_SIZE 8
 #else
@@ -62,4 +66,8 @@ static ALWAYS_INLINE void _InterruptStackSetup(void)
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARM_CORTEXM_STACK__H_ */

arch/arm/include/kernel_event_logger_arch.h

@@ -22,6 +22,10 @@
 #ifndef __KERNEL_EVENT_LOGGER_ARCH_H__
 #define __KERNEL_EVENT_LOGGER_ARCH_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief Get the identification of the current interrupt.
  *
@@ -35,4 +39,8 @@ int _sys_current_irq_key_get(void)
 	return _IpsrGet();
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __KERNEL_EVENT_LOGGER_ARCH_H__ */

arch/arm/include/start_task_arch.h

@@ -33,8 +33,16 @@
 #include <nano_private.h>
 #include <microkernel/task.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define _START_TASK_ARCH(task, opt_ptr) \
 	do {/* nothing */              \
 	} while ((0))
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _START_TASK_ARCH__H_ */

arch/arm/soc/fsl_frdm_k64f/soc.h

@@ -27,6 +27,10 @@
 
 #include <misc/util.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* default system clock */
 
 #define SYSCLK_DEFAULT_IOSC_HZ MHZ(120)
@@ -163,4 +167,8 @@
 
 #endif /* !_ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SOC__H_ */

arch/arm/soc/ti_lm3s6965/scp.h

@@ -39,6 +39,10 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define _SCP_OSC_SOURCE_MAIN 0
 #define _SCP_OSC_SOURCE_INTERNAL 1
 #define _SCP_OSC_SOURCE_INTERNAL_DIV4 2
@@ -162,4 +166,9 @@ struct __scp {
 };
 
 extern volatile struct __scp __scp;
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SCP_H_ */

arch/arm/soc/ti_lm3s6965/soc.h

@@ -27,6 +27,10 @@
 
 #include <misc/util.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* default system clock */
 
 #define SYSCLK_DEFAULT_IOSC_HZ MHZ(12)
@@ -90,4 +94,8 @@
 
 #endif /* !_ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BOARD__H_ */

arch/x86/include/advidle.h

@@ -28,6 +28,10 @@
 #ifndef __INCadvidle
 #define __INCadvidle
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef CONFIG_ADVANCED_IDLE
 
 /**
@@ -74,4 +78,8 @@ extern int _AdvIdleFunc(int32_t ticks);
 
 #endif /* CONFIG_ADVANCED_IDLE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __INCadvidle */

arch/x86/include/asm_inline_gcc.h

@@ -19,6 +19,10 @@
 #ifndef _ASM_INLINE_GCC_H
 #define _ASM_INLINE_GCC_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * The file must not be included directly
  * Include asm_inline.h instead
@@ -136,4 +140,9 @@ static inline void _do_fp_ctx_init(int flags)
 #endif /* CONFIG_FP_SHARING */
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ASM_INLINE_GCC_H */

arch/x86/include/cache_private.h

@@ -19,8 +19,16 @@
 
 #include <cache.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern int _is_clflush_available(void);
 extern void _cache_flush_wbinvd(vaddr_t, size_t);
 extern size_t _cache_line_size_get(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _cache_private__h_ */

arch/x86/include/gdt.h

@@ -27,6 +27,10 @@
 
 #include <arch/x86/arch.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 
 #include <stdint.h>
@@ -63,4 +67,9 @@ extern tGdtHeader _gdt; /* GDT is implemented in arch/x86/core/gdt.c */
 
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _GDT_H */

arch/x86/include/idtEnt.h

@@ -26,8 +26,7 @@
 #define _IDTENT_H
 
 #ifdef __cplusplus
-extern"C"
-{
+extern "C" {
 #endif
 
 /**

arch/x86/include/kernel_event_logger_arch.h

@@ -24,6 +24,10 @@
 
 #include <drivers/loapic.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief Get the identification of the current interrupt.
  *
@@ -37,4 +41,8 @@ static inline int _sys_current_irq_key_get(void)
 	return _loapic_isr_vector_get();
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __KERNEL_EVENT_LOGGER_ARCH_H__ */

arch/x86/include/start_task_arch.h

@@ -31,8 +31,16 @@
 #include <nano_private.h>
 #include <microkernel/task.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern void _StartTaskArch(struct k_task *, unsigned int *);
 
 #define _START_TASK_ARCH(task, opt_ptr) _StartTaskArch(task, opt_ptr)
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _START_TASK_ARCH__H_ */

arch/x86/include/swapstk.h

@@ -30,6 +30,10 @@
 #ifndef _SWAPSTK_H
 #define _SWAPSTK_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 
 /* Stack of a saved context */
@@ -45,4 +49,8 @@ typedef struct s_SwapStk {
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SWAPSTK_H */

arch/x86/soc/quark_x1000/soc.h

@@ -45,6 +45,10 @@
 #endif
 #endif /* CONFIG_IOAPIC */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define NUM_STD_IRQS 16   /* number of "standard" IRQs on an x86 platform */
 #define INT_VEC_IRQ0 0x20 /* Vector number for IRQ0 */
 
@@ -117,4 +121,8 @@ static inline int pci_irq2pin(int irq)
 	return irq - NUM_STD_IRQS + 1;
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __SOC_H_ */

drivers/adc/adc_dw.h

@@ -39,6 +39,10 @@
 #include <stdint.h>
 #include <adc.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * ADC driver name.
  *
@@ -212,4 +216,8 @@ struct adc_info {
  */
 int adc_dw_init(struct device *dev);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif  /*  DW_ADC_H_ */

drivers/adc/adc_ti_adc108s102.h

@@ -23,9 +23,12 @@
 
 #include <misc/byteorder.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Internal return code */
 #define ADC108S102_DONE				(-1)
-
 /* 8 chans maximum + 1 dummy, 16 bits per-chans -> 18 bytes */
 #define ADC108S102_CMD_BUFFER_SIZE		9
 /* 1 dummy + 8 results maximum, 16 bits per-chans -> 18 bytes */
@@ -60,4 +63,8 @@ struct ti_adc108s102_data {
 	struct adc_seq_table *seq_table;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __ADC108S102_PRIV_H__ */

drivers/bluetooth/uart.h

@@ -16,4 +16,12 @@
  * limitations under the License.
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void bt_uart_isr(void *);
+
+#ifdef __cplusplus
+}
+#endif

drivers/ethernet/eth_dw_priv.h

@@ -26,6 +26,10 @@
 
 #include "contiki/ip/uip.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef void (*eth_config_irq_t)(struct device *port);
 
 struct eth_config {
@@ -192,4 +196,8 @@ struct eth_runtime {
 #define REG_ADDR_DMA_OPERATION         0x1018
 #define REG_ADDR_INT_ENABLE            0x101C
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* DRIVERS_ETHERNET_ETH_DW_PRIV_H_ */

drivers/gpio/gpio_dw.h

@@ -23,6 +23,10 @@
 #include <pci/pci_mgr.h>
 #endif /* CONFIG_PCI */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern int gpio_dw_initialize(struct device *port);
 typedef void (*gpio_config_irq_t)(struct device *port);
 
@@ -52,3 +56,8 @@ struct gpio_dw_runtime {
 	uint32_t enabled_callbacks;
 	uint8_t port_callback;
 };
+
+#ifdef __cplusplus
+}
+#endif
+

drivers/gpio/gpio_mmio.h

@@ -25,6 +25,10 @@
 
 #include <gpio.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* For enable register:
  * NORMAL: 0 - disable, 1 - enable
  * INV: 0 - enable, 1 - disable
@@ -79,4 +83,8 @@ struct gpio_mmio_config {
 	} access;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _GPIO_MMIO_H_ */

drivers/gpio/gpio_pcal9535a.h

@@ -26,6 +26,10 @@
 #include <gpio.h>
 #include <i2c.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief Initialization function for PCAL9535A
  *
@@ -73,4 +77,8 @@ struct gpio_pcal9535a_drv_data {
 	} reg_cache;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _GPIO_PCAL9535A_H_ */

drivers/i2c/i2c_dw.h

@@ -26,6 +26,10 @@
 #include <pci/pci_mgr.h>
 #endif /* CONFIG_PCI */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define I2C_DW_MAGIC_KEY			0x44570140
 
 
@@ -123,4 +127,8 @@ struct i2c_dw_dev_config {
 	uint16_t		lcnt;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __DRIVERS_I2C_DW_H */

drivers/i2c/i2c_dw_registers.h

@@ -18,6 +18,9 @@
 #ifndef __DRIVERS_I2C_DW_REGISTERS_H
 #define __DRIVERS_I2C_DW_REGISTERS_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /*  IC_CON bits */
 #define IC_CON_TX_INTR_MODE			(1 << 8)
@@ -260,4 +263,8 @@ struct i2c_dw_registers {
 	uint32_t ic_comp_type;		/* offset 0xFC */
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __DRIVERS_I2C_DW_REGISTERS_H */

drivers/i2c/i2c_quark_se_ss.h

@@ -24,6 +24,10 @@
 #include <i2c.h>
 #include <stdbool.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* dev->state values from IC_DATA_CMD Data transfer mode settings (bit 8) */
 #define I2C_QSE_SS_STATE_READY		(0)
 #define I2C_QSE_SS_CMD_SEND		(1 << 0)
@@ -73,4 +77,8 @@ struct i2c_qse_ss_dev_config {
 	uint16_t		lcnt;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __DRIVERS_I2C_QUARK_SE_SS_H__ */

drivers/ipm/ipm_quark_se.h

@@ -26,6 +26,10 @@
 #include <device.h>
 #include <init.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define QUARK_SE_IPM_OUTBOUND	0
 #define QUARK_SE_IPM_INBOUND		1
 
@@ -139,5 +143,8 @@ int quark_se_ipm_controller_initialize(struct device *d);
 	SYS_DEFINE_DEVICE(name, &quark_se_ipm_runtime_##name, SECONDARY, \
 						CONFIG_KERNEL_INIT_PRIORITY_DEFAULT)
 
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* __INCquark_se_mailboxh */

drivers/pinmux/pinmux.h

@@ -21,6 +21,10 @@
 #include <stdint.h>
 #include <device.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct pin_config {
 	uint8_t pin_num;
 	uint8_t mode;
@@ -32,4 +36,8 @@ struct pinmux_config {
 
 extern int pinmux_initialize(struct device *port);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __DRIVERS_PINMUX_H */

drivers/pwm/pwm_pca9685.h

@@ -24,6 +24,10 @@
 #include <gpio.h>
 #include <i2c.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief Initialization function for PCA9685
  *
@@ -47,4 +51,8 @@ struct pwm_pca9685_drv_data {
 	struct device *i2c_master;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __PWM_PCA9685_H__ */

drivers/rtc/rtc_dw.h

@@ -21,6 +21,10 @@
 #include <device.h>
 #include <rtc.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define RTC_CCVR		(0x0)
 #define RTC_CMR			(0x4)
 #define RTC_CLR			(0x8)
@@ -58,4 +62,8 @@ struct rtc_dw_dev_config {
 
 int rtc_dw_init(struct device *dev);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _RTC_DW_H_ */

drivers/serial/uart_k20_priv.h

@@ -26,6 +26,10 @@
 #include <stdint.h>
 #include <misc/__assert.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 union BDH {
 	uint8_t value;
 	struct {
@@ -251,4 +255,8 @@ static inline void _uart_k20_fifo_enable(volatile struct K20_UART *uart_p)
 	uart_p->c2.value |= tx_rx_state;
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _K20UART_H_ */

drivers/spi/spi_dw.h

@@ -21,6 +21,10 @@
 
 #include <spi.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef void (*spi_dw_config_t)(void);
 
 /* Private structures */
@@ -166,4 +170,8 @@ struct spi_dw_data {
 					   DW_SPI_IMR_RXOIM | \
 					   DW_SPI_IMR_RXFIM))
 
+#ifdef __cplusplus
+}
+#endif
 #endif /* __SPI_DW_H__ */
+

drivers/spi/spi_intel.h

@@ -23,6 +23,9 @@
 #include <pci/pci.h>
 #include <pci/pci_mgr.h>
 #endif /* CONFIG_PCI */
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 typedef void (*spi_intel_config_t)(void);
 
@@ -114,5 +117,8 @@ struct spi_intel_data {
 /* DSS_RATE settings */
 #define INTEL_SPI_DSS_RATE(__msf) \
 	((__msf & (INTEL_SPI_DDS_RATE_MASK)) >> 8)
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* __SPI_INTEL_PRIV_H__ */

include/adc.h

@@ -28,6 +28,10 @@
 #include <stdint.h>
 #include <device.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief ADC Interface
  * @defgroup adc_interface ADC Interface
@@ -139,4 +143,8 @@ static inline int adc_read(struct device *dev, struct adc_seq_table *seq_table)
  * @}
  */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif  /* __INCLUDE_ADC_H__ */

include/aio_comparator.h

@@ -17,6 +17,10 @@
 #ifndef _AIO_COMPARATOR_H_
 #define _AIO_COMPARATOR_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 enum aio_cmp_ref {
 	AIO_CMP_REF_A,		/**< Use reference A. */
 	AIO_CMP_REF_B,		/**< Use reference B. */
@@ -84,4 +88,8 @@ static inline int aio_cmp_configure(struct device *dev, uint8_t index,
 	return api->configure(dev, index, polarity, refsel, cb, param);
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _AIO_COMPARATOR_H_ */

include/arch/arc/v2/arcv2_irq_unit.h

@@ -19,6 +19,10 @@
 #ifndef _ARC_V2_IRQ_UNIT__H
 #define _ARC_V2_IRQ_UNIT__H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* configuration flags for interrupt unit */
 
 #define _ARC_V2_INT_DISABLE 0
@@ -107,4 +111,9 @@ void _arc_v2_irq_unit_int_eoi(int irq);
 void _arc_v2_irq_unit_init(void);
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARC_V2_IRQ_UNIT__H */

include/arch/arc/v2/asm_inline_gcc.h

@@ -19,6 +19,10 @@
 #ifndef __ASM_INLINE_GCC_H__
 #define __ASM_INLINE_GCC_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 
 #include <sys_io.h>
@@ -266,4 +270,9 @@ static inline __attribute__((always_inline))
 }
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __ASM_INLINE_GCC_H__ */

include/arch/arc/v2/aux_regs.h

@@ -25,6 +25,10 @@
 #ifndef _ARC_V2_AUX_REGS__H_
 #define _ARC_V2_AUX_REGS__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define _ARC_V2_LP_START 0x002
 #define _ARC_V2_LP_END 0x003
 #define _ARC_V2_STATUS32 0x00a
@@ -104,4 +108,8 @@
 #endif /* __GNUC__ */
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARC_V2_AUX_REGS__H_ */

include/arch/arc/v2/error.h

@@ -26,6 +26,10 @@
 
 #include <arch/arc/v2/exc.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 #include <toolchain/gcc.h>
 extern FUNC_NORETURN void _NanoFatalErrorHandler(unsigned int,
@@ -38,4 +42,9 @@ extern void _SysFatalErrorHandler(unsigned int cause, const NANO_ESF *esf);
 #define _NANO_ERR_STACK_CHK_FAIL (2)    /* Stack corruption detected */
 #define _NANO_ERR_ALLOCATION_FAIL (3)   /* Kernel Allocation Failure */
 
+#ifdef __cplusplus
+}
+#endif
+
+
 #endif /* _ARCH_ARC_V2_ERROR_H_ */

include/arch/arc/v2/exc.h

@@ -24,6 +24,10 @@
 #ifndef _ARCH_ARC_V2_EXC_H_
 #define _ARCH_ARC_V2_EXC_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 #else
 struct __esf {
@@ -35,4 +39,9 @@ typedef struct __esf NANO_ESF;
 extern const NANO_ESF _default_esf;
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
+
 #endif /* _ARCH_ARC_V2_EXC_H_ */

include/arch/arc/v2/ffs.h

@@ -24,6 +24,10 @@
 #ifndef _ARCH_ARC_V2_FFS_H_
 #define _ARCH_ARC_V2_FFS_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 
 #include <stdint.h>
@@ -89,4 +93,8 @@ static ALWAYS_INLINE unsigned int find_lsb_set(uint32_t op)
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_ARC_V2_FFS_H_ */

include/arch/arc/v2/irq.h

@@ -27,6 +27,10 @@
 #include <arch/arc/v2/aux_regs.h>
 #include <toolchain/common.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 GTEXT(_irq_exit);
 GTEXT(irq_connect)
@@ -103,4 +107,9 @@ static ALWAYS_INLINE void irq_unlock(unsigned int key)
 }
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_ARC_V2_IRQ__H_ */

include/arch/arc/v2/misc.h

@@ -24,10 +24,18 @@
 #ifndef _ARCH_ARC_V2_MISC_H_
 #define _ARCH_ARC_V2_MISC_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 extern unsigned int nano_cpu_sleep_mode;
 extern void nano_cpu_idle(void);
 extern void nano_cpu_atomic_idle(unsigned int key);
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_ARC_V2_MISC_H_ */

include/arch/arm/cortex_m/asm_inline_gcc.h

@@ -21,6 +21,10 @@
 #ifndef _ASM_INLINE_GCC_PUBLIC_GCC_H
 #define _ASM_INLINE_GCC_PUBLIC_GCC_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * The file must not be included directly
  * Include arch/cpu.h instead
@@ -170,4 +174,9 @@ static ALWAYS_INLINE void irq_unlock(unsigned int key)
 
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ASM_INLINE_GCC_PUBLIC_GCC_H */

include/arch/arm/cortex_m/error.h

@@ -26,6 +26,10 @@
 
 #include <arch/arm/cortex_m/exc.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 extern FUNC_NORETURN void _NanoFatalErrorHandler(unsigned int,
 						 const NANO_ESF*);
@@ -37,4 +41,8 @@ extern void _SysFatalErrorHandler(unsigned int, const NANO_ESF*);
 #define _NANO_ERR_STACK_CHK_FAIL (2)    /* Stack corruption detected */
 #define _NANO_ERR_ALLOCATION_FAIL (3)   /* Kernel Allocation Failure */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_ARM_CORTEXM_ERROR_H_ */

include/arch/arm/cortex_m/exc.h

@@ -24,6 +24,10 @@
 #ifndef _ARCH_ARM_CORTEXM_EXC_H_
 #define _ARCH_ARM_CORTEXM_EXC_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 GTEXT(_ExcExit);
 #else
@@ -47,4 +51,8 @@ extern const NANO_ESF _default_esf;
 extern void _ExcExit(void);
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_ARM_CORTEXM_EXC_H_ */

include/arch/arm/cortex_m/gdb_stub.h

@@ -27,6 +27,10 @@
 #ifndef _GDB_STUB__H_
 #define _GDB_STUB__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 
 #if CONFIG_GDB_INFO
@@ -58,4 +62,9 @@ GTEXT(_irq_vector_table_entry_with_gdb_stub)
 #else
 extern void _irq_vector_table_entry_with_gdb_stub(void);
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _GDB_STUB__H_ */

include/arch/arm/cortex_m/irq.h

@@ -27,6 +27,10 @@
 #include <arch/arm/cortex_m/nvic.h>
 #include <sw_isr_table.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 GTEXT(_IntExit);
 GTEXT(irq_connect_dynamic)
@@ -98,4 +102,8 @@ extern void _irq_priority_set(unsigned int irq, unsigned int prio);
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_ARM_CORTEXM_IRQ_H_ */

include/arch/arm/cortex_m/misc.h

@@ -24,8 +24,16 @@
 #ifndef _ARCH_ARM_CORTEXM_MISC_H_
 #define _ARCH_ARM_CORTEXM_MISC_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 extern void nano_cpu_idle(void);
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_ARM_CORTEXM_MISC_H_ */

include/arch/arm/cortex_m/nvic.h

@@ -39,6 +39,10 @@
 
 #include <arch/arm/cortex_m/scs.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* for assembler, only works with constants */
 #define _EXC_PRIO(pri) (((pri) << (8 - CONFIG_NUM_IRQ_PRIO_BITS)) & 0xff)
 #if defined(CONFIG_ZERO_LATENCY_IRQS)
@@ -221,4 +225,8 @@ static inline void _NvicSwInterruptTrigger(unsigned int irq)
 
 #endif /* !_ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _NVIC_H_ */

include/arch/arm/cortex_m/scb.h

@@ -39,6 +39,10 @@
 #ifndef _SCB__H_
 #define _SCB__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 
 /* needed by nano_cpu_atomic_idle() written in asm */
@@ -1203,4 +1207,8 @@ static inline void _ScbUsageFaultAllFaultsReset(void)
 }
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SCB__H_ */

include/arch/arm/cortex_m/scs.h

@@ -57,6 +57,10 @@
 #ifndef _SCS__H_
 #define _SCS__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 
 #include <arch/arm/cortex_m/memory_map.h>
@@ -557,4 +561,8 @@ static inline void _scs_relocate_vector_table(void *new_addr)
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SCS__H_ */

include/arch/x86/arch.h

@@ -29,6 +29,10 @@
 #include <arch/x86/addr_types.h>
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* APIs need to support non-byte addressable architectures */
 
 #define OCTET_TO_SIZEOFUNIT(X) (X)
@@ -539,4 +543,8 @@ extern void	_IntVecMarkFree(unsigned int vector);
 #define SYS_X86_RST_CNT_CPU_RST 0x4
 #define SYS_X86_RST_CNT_FULL_RST 0x08
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ARCH_IFACE_H */

include/arch/x86/asm_inline_gcc.h

@@ -28,6 +28,10 @@
 
 #include <sys_io.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef _ASMLANGUAGE
 #include <stdint.h>
 #include <stddef.h>
@@ -482,4 +486,9 @@ static inline __attribute__((always_inline))
 }
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ASM_INLINE_GCC_PUBLIC_GCC_H */

include/bluetooth/bluetooth.h

@@ -26,6 +26,10 @@
 
 #include <bluetooth/hci.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @brief Callback for notifying that Bluetooth has been enabled.
  *
  *  @param err zero on success or (negative) error code otherwise.
@@ -319,4 +323,9 @@ int bt_br_set_discoverable(bool enable);
  */
 int bt_br_set_connectable(bool enable);
 #endif
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_BLUETOOTH_H */

include/bluetooth/conn.h

@@ -20,6 +20,10 @@
 #ifndef __BT_CONN_H
 #define __BT_CONN_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if defined(CONFIG_BLUETOOTH_CENTRAL) || defined(CONFIG_BLUETOOTH_PERIPHERAL)
 #include <stdbool.h>
 
@@ -350,4 +354,8 @@ int bt_conn_auth_pincode_entry(struct bt_conn *conn, const char *pin);
 #endif /* CONFIG_BLUETOOTH_BREDR */
 #endif /* CONFIG_BLUETOOTH_SMP || CONFIG_BLUETOOTH_BREDR */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_CONN_H */

include/bluetooth/driver.h

@@ -35,6 +35,10 @@ struct net_buf *bt_buf_get_evt(void);
 /* Allocate a buffer for incoming ACL data */
 struct net_buf *bt_buf_get_acl(void);
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Receive data from the controller/HCI driver */
 void bt_recv(struct net_buf *buf);
 
@@ -52,4 +56,8 @@ int bt_driver_register(struct bt_driver *drv);
 /* Unregister a previously registered HCI driver */
 void bt_driver_unregister(struct bt_driver *drv);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_DRIVER_H */

include/bluetooth/gatt.h

@@ -20,6 +20,10 @@
 #ifndef __BT_GATT_H
 #define __BT_GATT_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if defined(CONFIG_BLUETOOTH_CENTRAL) || defined(CONFIG_BLUETOOTH_PERIPHERAL)
 #include <stddef.h>
 #include <misc/util.h>
@@ -906,4 +910,9 @@ int bt_gatt_read_multiple(struct bt_conn *conn, const uint16_t *handles,
 
 #endif /* CONFIG_BLUETOOTH_GATT_CLIENT */
 #endif /* CONFIG_BLUETOOTH_CENTRAL || CONFIG_BLUETOOTH_PERIPHERAL */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_GATT_H */

include/bluetooth/hci.h

@@ -21,6 +21,10 @@
 #include <toolchain.h>
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BT_ADDR_LE_PUBLIC  0x00
 #define BT_ADDR_LE_RANDOM  0x01
 
@@ -576,4 +580,8 @@ struct bt_hci_evt_le_generate_dhkey_complete {
 	uint8_t dhkey[32];
 } __packed;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_HCI_H */

include/bluetooth/l2cap.h

@@ -34,6 +34,10 @@
 #ifndef __BT_L2CAP_H
 #define __BT_L2CAP_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if defined(CONFIG_BLUETOOTH_CENTRAL) || defined(CONFIG_BLUETOOTH_PERIPHERAL)
 #include <net/buf.h>
 #include <bluetooth/conn.h>
@@ -151,4 +155,9 @@ int bt_l2cap_chan_send(struct bt_l2cap_chan *chan, struct net_buf *buf);
 
 #endif /* CONFIG_BLUETOOTH_L2CAP_DYNAMIC_CHANNEL */
 #endif /* CONFIG_BLUETOOTH_CENTRAL || CONFIG_BLUETOOTH_PERIPHERAL */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_L2CAP_H */

include/bluetooth/log.h

@@ -22,6 +22,10 @@
 
 #include <stdio.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if defined(CONFIG_BLUETOOTH_DEBUG_COLOR)
 #define BT_COLOR_OFF     "\x1B[0m"
 #define BT_COLOR_RED     "\x1B[0;31m"
@@ -59,4 +63,8 @@
 #define BT_STACK_NOINIT(name, size) \
 		char __noinit __stack name[(size) + BT_STACK_DEBUG_EXTRA]
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_LOG_H */

include/bluetooth/uuid.h

@@ -20,6 +20,10 @@
 #ifndef __BT_UUID_H
 #define __BT_UUID_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def BBT_UUID_GAP
  *  @brief Generic Access
  */
@@ -233,4 +237,8 @@ void bt_uuid_to_str(const struct bt_uuid *uuid, char *str, size_t len);
 const char *bt_uuid_str(const struct bt_uuid *uuid);
 #endif /* CONFIG_BLUETOOTH_DEBUG */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BT_UUID_H */

include/cache.h

@@ -19,6 +19,10 @@
 
 #include <nanokernel.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if defined(CONFIG_CACHE_FLUSHING)
 #define _sys_cache_flush_sig(x) void (x)(vaddr_t virt, size_t size)
 
@@ -36,4 +40,8 @@
 	#define sys_cache_line_size CONFIG_CACHE_LINE_SIZE
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _cache__h_ */

include/device.h

@@ -18,6 +18,10 @@
 #ifndef _DEVICE_H_
 #define _DEVICE_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def DECLARE_DEVICE_INIT_CONFIG
  *
  *  @brief Define an config object
@@ -190,4 +194,8 @@ static inline void synchronous_call_complete(device_sync_call_t *sync)
 
 #endif /* CONFIG_MICROKERNEL || CONFIG_NANOKERNEL */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _DEVICE_H_ */

include/display/grove_lcd.h

@@ -17,6 +17,10 @@
 #ifndef DISPLAY_GROVE_LCD_H
 #define DISPLAY_GROVE_LCD_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define GROVE_LCD_NAME			"GLCD"
 
 /**
@@ -162,4 +166,8 @@ void glcd_color_set(struct device *port, uint8_t r, uint8_t g, uint8_t b);
  */
 int glcd_initialize(struct device *port);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* DISPLAY_GROVE_LCD_H */

include/drivers/console/ipm_console.h

@@ -23,6 +23,10 @@
 #include <device.h>
 #include <misc/ring_buffer.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define IPM_CONSOLE_STDOUT	(1 << 0)
 #define IPM_CONSOLE_PRINTK	(1 << 1)
 
@@ -99,4 +103,8 @@ int ipm_console_receiver_init(struct device *d);
 int ipm_console_sender_init(struct device *d);
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _IPM_CONSOLE_H_ */

include/drivers/console/uart_pipe.h

@@ -23,6 +23,10 @@
 
 #include <stdlib.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @brief Received data callback.
  *
  *  This function is called when new data is received on UART. The off parameter
@@ -66,3 +70,7 @@ int uart_pipe_send(const uint8_t *data, int len);
  *  @param unused unused
  */
 void uart_pipe_isr(void *unused);
+
+#ifdef __cplusplus
+}
+#endif

include/drivers/k20_mcg.h

@@ -26,6 +26,10 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* MCG - module register structure */
 typedef volatile struct
 {
@@ -204,4 +208,8 @@ typedef union {
 /* Control register fields */
 #define OSC_CR_EXT_CLK_EN 0x80
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _K20MCG_H_ */

include/drivers/k20_pcr.h

@@ -27,6 +27,10 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define PCR_PORT_A 0
 #define PCR_PORT_B 1
 #define PCR_PORT_C 2
@@ -88,4 +92,8 @@ struct K20_PORT_PCR {
 #define K20_PCR(base, port, pin) \
 	((union K20_PCR *)(base + (0x1000 * port) + (pin * 4)))
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _K20PCR_H_ */

include/drivers/k20_sim.h

@@ -29,6 +29,10 @@
 #include <stdint.h>
 #include <misc/__assert.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define SIM_OCS32K_SYS 0
 #define SIM_OCS32K_RTS 2
 #define SIM_OCS32K_LPO 3 /* 1kHz */
@@ -215,4 +219,8 @@ struct K20_SIM {
 	uint8_t res104c_1063[0x1063 - 0x104c]; /* Reserved */
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _K20SIM_H_ */

include/drivers/k20_watchdog.h

@@ -26,6 +26,10 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Sequence of writes within 20 bus cycles for action to take effect */
 #define WDOG_REFRESH_1 0xA602
 #define WDOG_REFRESH_2 0xB480
@@ -135,4 +139,8 @@ static ALWAYS_INLINE void wdog_disable(volatile struct K20_WDOG *wdog_p)
 	wdog_p->stctrlh.value = stctrlh.value;
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _K20WDOG_H_ */

include/drivers/k6x_mpu.h

@@ -29,6 +29,10 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define MPU_VALID_MASK 0x01
 #define MPU_SLV_PORT_ERR_MASK 0xF8
 
@@ -68,4 +72,8 @@ struct K6x_MPU {
 	uint32_t rgnDescAltAccCtrl[MPU_NUM_REGIONS]; /* 0x0800 */
 }; /* K6x Microntroller PMC module */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _K6xMPU_H_ */

include/drivers/k6x_pmc.h

@@ -29,6 +29,10 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define PMC_REGSC_ACKISO_MASK 0x08 /* ack I/O isolation (write to clear) */
 
 union REGSC {
@@ -50,4 +54,8 @@ struct K6x_PMC {
 	union REGSC regsc;	/* 0x0002 */
 };	/* K6x Microntroller PMC module */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _K6xPMC_H_ */

include/drivers/pci/pci.h

@@ -24,6 +24,10 @@
 #ifndef _PCI_H_
 #define _PCI_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BAR_SPACE_MEM 0
 #define BAR_SPACE_IO 1
 
@@ -77,4 +81,8 @@ extern void pci_show(struct pci_dev_info *dev_info);
 #define pci_show(__unused__) { ; }
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _PCI_H_ */

include/drivers/rand32.h

@@ -34,7 +34,15 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern void sys_rand32_init(void);
 extern uint32_t sys_rand32_get(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __INCrand32h */

include/drivers/serial/uart_nsim.h

@@ -23,6 +23,14 @@
 
 #include <uart.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void uart_nsim_port_init(struct device *, const struct uart_init_info * const);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _DRIVERS_UART_NSIM_H_ */

include/drivers/spi/spi_intel.h

@@ -19,6 +19,10 @@
 #ifndef __SPI_INTEL_H__
 #define __SPI_INTEL_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* SPI Maximum supported system frequencies */
 #define SPI_MAX_CLK_FREQ_25MHZ     ((0x800000 << 8))
 #define SPI_MAX_CLK_FREQ_20MHz     ((0x666666 << 8) | 1)
@@ -52,5 +56,8 @@
 #define SPI_MAX_CLK_FREQ_10KHZ     ((0x20000 << 8) | 77)
 #define SPI_MAX_CLK_FREQ_5KHZ      ((0x20000 << 8) | 154)
 #define SPI_MAX_CLK_FREQ_1KHZ      ((0x8000 << 8) | 194)
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* __SPI_INTEL_H__ */

include/drivers/system_timer.h

@@ -25,6 +25,10 @@
 #ifndef _TIMER__H_
 #define _TIMER__H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef _ASMLANGUAGE
 
 GTEXT(_timer_int_handler)
@@ -66,4 +70,8 @@ extern void _nano_sys_clock_tick_announce(int32_t ticks);
 
 #endif /* _ASMLANGUAGE */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _TIMER__H_ */

include/init.h

@@ -21,6 +21,10 @@
 #include <device.h>
 #include <toolchain.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * System initialization levels. The PRIMARY and SECONDARY levels are
  * executed in the kernel's initialization context, which uses the interrupt
@@ -116,4 +120,8 @@
  */
 #define SYS_GET_DEVICE(name) (&SYS_GET_DEVICE_NAME(name))
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _INIT_H_ */

include/ipm.h

@@ -29,6 +29,10 @@
 #include <nanokernel.h>
 #include <device.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * Callback API for incoming IPM messages
  *
@@ -168,6 +172,10 @@ static inline int ipm_set_enabled(struct device *ipmdev, int enable)
 	return api->set_enabled(ipmdev, enable);
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */

include/irq_offload.h

@@ -20,6 +20,10 @@
 #ifndef _IRQ_OFFLOAD_H_
 #define _IRQ_OFFLOAD_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef void (*irq_offload_routine_t)(void *parameter);
 
 /**
@@ -36,4 +40,8 @@ typedef void (*irq_offload_routine_t)(void *parameter);
  */
 void irq_offload(irq_offload_routine_t routine, void *parameter);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SW_IRQ_H_ */

include/kernel_version.h

@@ -19,6 +19,10 @@
 #ifndef _kernel_version__h_
 #define _kernel_version__h_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * The kernel version has been converted from a string to a four-byte
  * quantity that is divided into two parts.
@@ -40,4 +44,8 @@
 
 extern uint32_t sys_kernel_version_get(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _kernel_version__h_ */

include/microkernel.h

@@ -19,6 +19,10 @@
 #ifndef _MICROKERNEL_H
 #define _MICROKERNEL_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* nanokernel and generic kernel public APIs */
 
 #include <nanokernel.h>
@@ -57,4 +61,8 @@
  * @}
  */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _MICROKERNEL_H */

include/microkernel/task_irq.h

@@ -29,6 +29,10 @@
 
 #include <microkernel/base_api.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define INVALID_VECTOR 0xFFFFFFFF
 
 /**
@@ -83,4 +87,9 @@ extern int task_irq_wait(kirq_t irq_obj, int32_t timeout);
 /**
  * @}
  */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* TASK_IRQ_H */

include/misc/debug/mem_safe.h

@@ -19,6 +19,10 @@
 
 #include <errno.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @file
  * @brief Safe memory access routines
@@ -153,4 +157,8 @@ static inline int _mem_safe_region_add(void *addr, size_t num_bytes,
 }
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _debug__mem_safe__h_ */

include/misc/dlist.h

@@ -30,6 +30,10 @@
 
 #include <stddef.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct _dnode {
 	union {
 		struct _dnode *head; /* ptr to head of list (sys_dlist_t) */
@@ -281,4 +285,8 @@ static inline sys_dnode_t *sys_dlist_get(sys_dlist_t *list)
 	return node;
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _misc_dlist__h_ */

include/misc/event_logger.h

@@ -22,6 +22,10 @@
 #ifndef __EVENT_LOGGER_H__
 #define __EVENT_LOGGER_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define EVENT_HEADER_SIZE        1
 
 #ifndef _ASMLANGUAGE
@@ -149,4 +153,9 @@ int sys_event_logger_get_wait_timeout(struct event_logger *logger,
 #endif /* CONFIG_NANO_TIMEOUTS */
 
 #endif /* _ASMLANGUAGE */
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __EVENT_LOGGER_H__ */

include/misc/kernel_event_logger.h

@@ -25,6 +25,10 @@
 #ifndef __KERNEL_EVENT_LOGGER_H__
 #define __KERNEL_EVENT_LOGGER_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef CONFIG_KERNEL_EVENT_LOGGER
 
 #ifdef CONFIG_KERNEL_EVENT_LOGGER_CONTEXT_SWITCH
@@ -200,4 +204,8 @@ static inline void _sys_k_event_logger_enter_sleep(void) {};
 
 #endif /* CONFIG_KERNEL_EVENT_LOGGER */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __KERNEL_EVENT_LOGGER_H__ */

include/misc/printk.h

@@ -20,6 +20,10 @@
 
 #include <toolchain.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  *
  * @brief Print kernel debugging message.
@@ -53,4 +57,8 @@ static inline void printk(const char *fmt, ...)
 }
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

include/misc/reboot.h

@@ -24,6 +24,10 @@
 #ifndef _misc_reboot__h_
 #define _misc_reboot__h_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define SYS_REBOOT_WARM 0
 #define SYS_REBOOT_COLD 1
 
@@ -40,4 +44,9 @@
  */
 
 extern void sys_reboot(int type);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _misc_reboot__h_ */

include/misc/ring_buffer.h

@@ -24,6 +24,10 @@
 #include <misc/util.h>
 #include <errno.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define SIZE32_OF(x) (sizeof((x))/sizeof(uint32_t))
 
 /**
@@ -165,4 +169,8 @@ int sys_ring_buf_put(struct ring_buf *buf, uint16_t type, uint8_t value,
 int sys_ring_buf_get(struct ring_buf *buf, uint16_t *type, uint8_t *value,
 		     uint32_t *data, uint8_t *size32);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __RING_BUFFER_H__ */

include/misc/shell.h

@@ -16,6 +16,10 @@
  * limitations under the License.
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @brief Callback called when command is entered.
  *
  *  @param argc Number of parameters passed.
@@ -53,3 +57,8 @@ typedef const char *(*shell_prompt_function_t)(void);
  *  @param handler To be called to get the current prompt.
  */
 void shell_register_prompt_handler(shell_prompt_function_t handler);
+
+#ifdef __cplusplus
+}
+#endif
+

include/net/buf.h

@@ -26,6 +26,10 @@
 #include <misc/util.h>
 #include <nanokernel.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Alignment needed for various parts of the buffer definition */
 #define __net_buf_align __aligned(sizeof(int))
 
@@ -250,4 +254,8 @@ size_t net_buf_headroom(struct net_buf *buf);
  */
 #define net_buf_tail(buf) ((buf)->data + (buf)->len)
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __NET_BUF_H */

include/net/ip_buf.h

@@ -34,6 +34,10 @@
 #include "contiki/ip/uip.h"
 #include "contiki/packetbuf.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef CONFIG_NETWORKING_WITH_LOGGING
 #undef DEBUG_IP_BUFS
 #define DEBUG_IP_BUFS
@@ -374,4 +378,8 @@ static inline void net_analyze_stack(const char *name,
 #endif
 /* @endcond */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __IP_BUF_H */