espressif/ESP8266_RTOS_SDK
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feat: add user data to bin header

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user could put some data into bin header by USER_DATA_ATTR attribute, defined in esp_attr.h
This commit is contained in:
Chen Wu
2019-01-04 14:13:25 +08:00
parent c05b1a57f9
commit 68e0a80561
2 changed files with 4 additions and 0 deletions
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3
components/esp8266/include/esp_attr.h
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@ -46,4 +46,7 @@
// Forces read-only data into RTC memory. // Forces read-only data into RTC memory.
#define RTC_RODATA_ATTR __attribute__((section(".rtc.rodata"))) #define RTC_RODATA_ATTR __attribute__((section(".rtc.rodata")))
// Forces to put some user defined data in the binary file header, the offset is 0x10.
#define USER_DATA_ATTR __attribute__((section(".user.data")))
#endif /* __ESP_ATTR_H__ */ #endif /* __ESP_ATTR_H__ */

1
components/esp8266/ld/esp8266.common.ld
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@ -230,6 +230,7 @@ SECTIONS
.irom0.text : ALIGN(4) .irom0.text : ALIGN(4)
{ {
_irom0_text_start = ABSOLUTE(.); _irom0_text_start = ABSOLUTE(.);
*(.user.data)
*(.rodata.* .rodata .irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text) *(.rodata.* .rodata .irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text)
*(.literal.* .text.*) *(.literal.* .text.*)