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Merge branch 'feature/bss_seg_in_external_memory' into 'master'

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memory:   support .bss segment can be in psram

See merge request idf/esp-idf!2236
This commit is contained in:
Angus Gratton
2018-10-10 14:40:21 +08:00
parent fc2230aeda 01308df8a6
commit 31cf117404
10 changed files with 82 additions and 7 deletions
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7
components/esp32/include/esp_attr.h
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@@ -39,6 +39,13 @@
// Forces code into RTC fast memory. See "docs/deep-sleep-stub.rst"
#define RTC_IRAM_ATTR __attribute__((section(".rtc.text")))
#if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
// Forces bss variable into external memory. "
#define EXT_RAM_ATTR __attribute__((section(".ext_ram.bss")))
#else
#define EXT_RAM_ATTR
#endif
// Forces data into RTC slow memory. See "docs/deep-sleep-stub.rst"
// Any variable marked with this attribute will keep its value
// during a deep sleep / wake cycle.