Mostly updated header files for use in C++

common.mk

@@ -94,14 +94,19 @@ OWN_LIBC ?= 1
 # Note: you will need a recent esp
 ENTRY_SYMBOL ?= call_user_start
 
-CFLAGS		= -Wall -Werror -Wl,-EL -nostdlib -mlongcalls -mtext-section-literals -std=gnu99 $(CPPFLAGS)
+# Common flags for both C & C++_
+C_CXX_FLAGS     = -Wall -Werror -Wl,-EL -nostdlib -mlongcalls -mtext-section-literals $(CPPFLAGS)
+# Flags for C only
+CFLAGS		= $(C_CXX_FLAGS) -std=gnu99
+# Flags for C++ only
+CXXFLAGS	= $(C_CXX_FLAGS) -fno-exceptions
 LDFLAGS		= -nostdlib -Wl,--no-check-sections -Wl,-L$(BUILD_DIR)sdklib -Wl,-L$(ROOT)lib -u $(ENTRY_SYMBOL) -Wl,-static -Wl,-Map=build/${PROGRAM}.map $(EXTRA_LDFLAGS)
 
 ifeq ($(FLAVOR),debug)
-    CFLAGS += -g -O0
+    C_CXX_FLAGS += -g -O0
     LDFLAGS += -g -O0
 else
-    CFLAGS += -g -O2
+    C_CXX_FLAGS += -g -O2
     LDFLAGS += -g -O2
 endif
 
@@ -228,7 +233,9 @@ $(1)_MAKEFILE ?= $(lastword $(MAKEFILE_LIST))
 
 ### determine compiler arguments ###
 $(1)_CFLAGS ?= $(CFLAGS)
+$(1)_CXXFLAGS ?= $(CXXFLAGS)
 $(1)_CC_ARGS = $(Q) $(CC) $$(addprefix -I,$$(INC_DIRS)) $$(addprefix -I,$$($(1)_INC_DIR)) $$($(1)_CFLAGS)
+$(1)_CXX_ARGS = $(Q) $(C++) $$(addprefix -I,$$(INC_DIRS)) $$(addprefix -I,$$($(1)_INC_DIR)) $$($(1)_CXXFLAGS)
 $(1)_AR = $(call lc,$(BUILD_DIR)$(1).a)
 
 $$($(1)_OBJ_DIR)%.o: $$($(1)_REAL_ROOT)%.c $$($(1)_MAKEFILE) $(wildcard $(ROOT)*.mk) | $$($(1)_SRC_DIR)

core/include/common_macros.h

@@ -45,7 +45,11 @@
    Important to note: IROM flash can only be accessed via 32-bit word
    aligned reads. It's up to the user of this attribute to ensure this.
 */
+#ifdef	__cplusplus
+    #define IROM __attribute__((section(".irom0.literal")))
+#else
     #define IROM __attribute__((section(".irom0.literal"))) const
+#endif
 
 #define INLINED inline static __attribute__((always_inline)) __attribute__((unused))
 

include/espressif/esp8266/esp8266.h

@@ -6,6 +6,10 @@
 #ifndef __ESP8266_H__
 #define __ESP8266_H__
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 #include "ets_sys.h"
 #include "eagle_soc.h"
 #include "gpio_register.h"
@@ -14,5 +18,9 @@
 #include "timer_register.h"
 #include "uart_register.h"
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif
 

include/espressif/esp_misc.h

@@ -8,6 +8,10 @@
 
 #include "lwip/ip_addr.h"
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 #define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
 #define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
 
@@ -23,4 +27,8 @@ void sdk_os_delay_us(uint16_t us);
 void sdk_os_install_putc1(void (*p)(char c));
 void sdk_os_putc(char c);
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

include/espressif/esp_softap.h

@@ -6,6 +6,10 @@
 #ifndef __ESP_SOFTAP_H__
 #define __ESP_SOFTAP_H__
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 struct sdk_softap_config {
     uint8_t ssid[32];
     uint8_t password[64];
@@ -20,4 +24,8 @@ struct sdk_softap_config {
 bool sdk_wifi_softap_get_config(struct sdk_softap_config *config);
 bool sdk_wifi_softap_set_config(struct sdk_softap_config *config);
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

include/espressif/esp_sta.h

@@ -10,6 +10,10 @@
 
 #include "queue.h"
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 struct sdk_station_config {
     uint8_t ssid[32];
     uint8_t password[64];
@@ -68,4 +72,8 @@ enum {
 
 uint8_t sdk_wifi_station_get_connect_status(void);
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

include/espressif/esp_system.h

@@ -6,6 +6,10 @@
 #ifndef __ESP_SYSTEM_H__
 #define __ESP_SYSTEM_H__
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 enum sdk_rst_reason {
 	DEFAULT_RST	  = 0,
 	WDT_RST	      = 1,
@@ -54,4 +58,8 @@ bool sdk_system_rtc_mem_write(uint8_t dst, const void *src, uint16_t n);
 
 void sdk_system_uart_swap(void);
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

include/espressif/esp_timer.h

@@ -6,6 +6,10 @@
 #ifndef __ESP_TIMER_H__
 #define __ESP_TIMER_H__
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 /* timer related */
 typedef void sdk_os_timer_func_t(void *timer_arg);
 
@@ -19,4 +23,8 @@ typedef struct _os_timer_t {
     void               *timer_arg;
 } sdk_os_timer_t;
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

include/espressif/esp_wifi.h

@@ -13,6 +13,10 @@
 
 #include <lwip/ip_addr.h>
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 enum {
 	NULL_MODE = 0,
 	STATION_MODE,
@@ -67,7 +71,11 @@ enum sdk_phy_mode {
 	PHY_MODE_11N    = 3
 };
 
-enum phy_mode sdk_wifi_get_phy_mode(void);
+enum sdk_phy_mode sdk_wifi_get_phy_mode(void);
 bool sdk_wifi_set_phy_mode(enum sdk_phy_mode mode);
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

include/espressif/sdk_private.h

@@ -15,6 +15,11 @@
 #define SDK_PRIVATE_H
 
 #include <stdint.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 struct ip_addr;
 
 /*********************************************
@@ -49,4 +54,8 @@ void sdk_system_station_got_ip_set(struct ip_addr *ip_addr, struct ip_addr *sn_m
  */
 void sdk_system_pp_recycle_rx_pkt(void *eb);
 
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

include/espressif/spi_flash.h

@@ -6,6 +6,10 @@
 #ifndef __SPI_FLASH_H__
 #define __SPI_FLASH_H__
 
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     SPI_FLASH_RESULT_OK,
     SPI_FLASH_RESULT_ERR,
@@ -21,6 +25,7 @@ sdk_SpiFlashOpResult sdk_spi_flash_erase_sector(uint16_t sec);
 sdk_SpiFlashOpResult sdk_spi_flash_write(uint32_t des_addr, uint32_t *src_addr, uint32_t size);
 sdk_SpiFlashOpResult sdk_spi_flash_read(uint32_t src_addr, uint32_t *des_addr, uint32_t size);
 
+    
 /* SDK uses this structure internally to account for flash size.
 
    chip_size field is initialised during startup from the flash size
@@ -42,4 +47,9 @@ typedef struct {
 
 extern sdk_flashchip_t sdk_flashchip;
 
+
+#ifdef	__cplusplus
+}
+#endif
+
 #endif

ld/eagle.app.v6.ld

@@ -166,11 +166,14 @@ SECTIONS
     *(.gnu.linkonce.e.*)
     *(.gnu.version_r)
     *(.eh_frame)
+    . = (. + 3) & ~ 3;
     /*  C++ constructor and destructor tables, properly ordered:  */
+    __init_array_start = ABSOLUTE(.);
     KEEP (*crtbegin.o(.ctors))
     KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
     KEEP (*(SORT(.ctors.*)))
     KEEP (*(.ctors))
+    __init_array_end = ABSOLUTE(.);
     KEEP (*crtbegin.o(.dtors))
     KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
     KEEP (*(SORT(.dtors.*)))