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Keep uninitialized var in main, not globally, preventing any BSS

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Signed-off-by: Daniel Lublin <daniel@lublin.se>
This commit is contained in:
Daniel Lublin 2023-03-07 15:03:59 +01:00
parent 3ddd6e83a3
commit c1fffcb70b
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GPG Key ID: 75BD0FEB8D3E7830
1 changed files with 6 additions and 6 deletions
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12
hw/application_fpga/fw/testfw/main.c
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@ -24,9 +24,6 @@ volatile uint32_t *timer_ctrl = (volatile uint32_t *)TK1_MMIO_TIMER_CTRL;
volatile uint32_t *trng_status = (volatile uint32_t *)TK1_MMIO_TRNG_STATUS; volatile uint32_t *trng_status = (volatile uint32_t *)TK1_MMIO_TRNG_STATUS;
volatile uint32_t *trng_entropy = (volatile uint32_t *)TK1_MMIO_TRNG_ENTROPY; volatile uint32_t *trng_entropy = (volatile uint32_t *)TK1_MMIO_TRNG_ENTROPY;
volatile uint32_t *fw_blake2s_addr = (volatile uint32_t *)TK1_MMIO_TK1_BLAKE2S; volatile uint32_t *fw_blake2s_addr = (volatile uint32_t *)TK1_MMIO_TK1_BLAKE2S;
// Function pointer to blake2s()
volatile int (*fw_blake2s)(void *, unsigned long, const void *, unsigned long, const void *, unsigned long, blake2s_ctx *);
// clang-format on // clang-format on
#define UDS_WORDS 8 #define UDS_WORDS 8
@ -110,6 +107,11 @@ uint32_t wait_timer_tick(uint32_t last_timer)
int main() int main()
{ {
// Function pointer to blake2s()
volatile int (*fw_blake2s)(void *, unsigned long, const void *,
unsigned long, const void *, unsigned long,
blake2s_ctx *);
uint8_t in; uint8_t in;
// Wait for terminal program and a character to be typed // Wait for terminal program and a character to be typed
@ -190,9 +192,7 @@ int main()
// Set up another stack because fw_ram is not available // Set up another stack because fw_ram is not available
// anymore in app_mode. // anymore in app_mode.
asm volatile( asm volatile("li sp, 0x40006ff0");
"li sp, 0x40006ff0"
);
*switch_app = 1; *switch_app = 1;