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refactor(esp_system): deduplicate ROM fast wake RTC digest reservation

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The digest length and the condition that reserves it at the end of RTC RAM were
duplicated in seven places. Hold the reservation in a hidden Kconfig value that
is zero when the feature does not apply, so every consumer subtracts it
unconditionally, and derive ESP_SECURE_BOOT_DIGEST_LEN from it.
This commit is contained in:
harshal.patil
2026-07-31 10:52:52 +08:00
committed by wuzhenghui
parent 708f34bd16
commit db7147f15a
15 changed files with 57 additions and 99 deletions
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components/bootloader_support/include/esp_secure_boot.h
+1 -5
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@@ -32,11 +32,7 @@ extern "C" {
Can be compiled as part of app or bootloader code.
*/
#if CONFIG_SECURE_BOOT_ECDSA_KEY_LEN_384_BITS
#define ESP_SECURE_BOOT_DIGEST_LEN 48
#else /* !CONFIG_SECURE_BOOT_ECDSA_KEY_LEN_384_BITS */
#define ESP_SECURE_BOOT_DIGEST_LEN 32
#endif /* CONFIG_SECURE_BOOT_ECDSA_KEY_LEN_384_BITS */
#define ESP_SECURE_BOOT_DIGEST_LEN CONFIG_SECURE_BOOT_IMAGE_DIGEST_LEN
/* SHA-256 length of the public key digest */
#define ESP_SECURE_BOOT_KEY_DIGEST_SHA_256_LEN 32