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https://github.com/trezor/trezor-firmware.git
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bootloader: Allow building as an app
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0b3373e6df
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@ -34,10 +34,6 @@
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#include "serialno.h"
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#include "rng.h"
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#ifdef APPVER
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#error Bootloader cannot be used in app mode
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#endif
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void layoutFirmwareHash(const uint8_t *hash)
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{
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char str[4][17];
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@ -116,6 +112,7 @@ void bootloader_loop(void)
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int check_firmware_sanity(void)
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{
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#ifndef APPVER
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if (memcmp((const void *)FLASH_META_MAGIC, "TRZR", 4)) { // magic does not match
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return 0;
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}
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@ -125,6 +122,7 @@ int check_firmware_sanity(void)
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if (*((const uint32_t *)FLASH_META_CODELEN) > FLASH_TOTAL_SIZE - (FLASH_APP_START - FLASH_ORIGIN)) { // firmware reports bigger size than flash size
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return 0;
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}
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#endif
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return 1;
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}
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@ -138,13 +136,18 @@ void __attribute__((noreturn)) __stack_chk_fail(void)
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int main(void)
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{
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#ifndef APPVER
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setup();
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#endif
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__stack_chk_guard = random32(); // this supports compiler provided unpredictable stack protection checks
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#ifndef APPVER
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memory_protect();
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oledInit();
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#endif
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firmware_present = check_firmware_sanity();
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#ifndef APPVER
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// at least one button is unpressed
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uint16_t state = gpio_port_read(BTN_PORT);
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int unpressed = ((state & BTN_PIN_YES) == BTN_PIN_YES || (state & BTN_PIN_NO) == BTN_PIN_NO);
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@ -164,6 +167,7 @@ int main(void)
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load_app();
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}
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#endif
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bootloader_loop();
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