#include "encoding.h"
-#define STACK_SIZE ((1 << 12) - 128)
+#define STACK_SIZE 512
-#ifdef __riscv64
+#if XLEN == 64
# define LREG ld
# define SREG sd
# define REGBYTES 8
csrwi mie, 0
# initialize global pointer
- la gp, _gp
+ la gp, __global_pointer$
# initialize stack pointer
la sp, stack_top
+ # Clear all hardware triggers
+ li t0, ~0
+1:
+ addi t0, t0, 1
+ csrw CSR_TSELECT, t0
+ csrw CSR_TDATA1, zero
+ csrr t1, CSR_TSELECT
+ beq t0, t1, 1b
+
# perform the rest of initialization in C
j _init
addi sp, sp, 32*REGBYTES
mret
- .bss
+ // Fill the stack with data so we can see if it was overrun.
.align 4
stack_bottom:
- .skip STACK_SIZE
+ .fill STACK_SIZE/4, 4, 0x22446688
stack_top:
#endif