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Expand BSSL stack #6819

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Merged
merged 2 commits into from
Nov 21, 2019
Merged

Expand BSSL stack #6819

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e39bee4
Expand BSLL stack
earlephilhower Nov 21, 2019
c644eb6
Update BearSSL_Validation.ino
earlephilhower Nov 21, 2019
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3 changes: 2 additions & 1 deletion cores/esp8266/StackThunk.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,8 @@ uint32_t *stack_thunk_top = NULL;
uint32_t *stack_thunk_save = NULL; /* Saved A1 while in BearSSL */
uint32_t stack_thunk_refcnt = 0;

#define _stackSize (5748/4)
/* Largest stack usage seen in the wild at scripts.google.com at 5828 */
#define _stackSize (5900/4)
#define _stackPaint 0xdeadbeef

/* Add a reference, and allocate the stack if necessary */
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4 changes: 3 additions & 1 deletion libraries/ESP8266WiFi/examples/BearSSL_Validation/BearSSL_Validation.ino
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Expand Up @@ -6,6 +6,7 @@

#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <StackThunk.h>
#include <time.h>

#ifndef STASSID
Expand Down Expand Up @@ -81,7 +82,8 @@ void fetchURL(BearSSL::WiFiClientSecure *client, const char *host, const uint16_
}
client->stop();
uint32_t freeStackEnd = ESP.getFreeContStack();
Serial.printf("\nCONT stack used: %d\n-------\n\n", freeStackStart - freeStackEnd);
Serial.printf("\nCONT stack used: %d\n", freeStackStart - freeStackEnd);
Serial.printf("BSSL stack used: %d\n-------\n\n", stack_thunk_get_max_usage());
}

void fetchNoConfig() {
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