v1.16: programs/sbf: c/float: work on stack values (backport of #32192)…

… (#32193)

programs/sbf: c/float: work on stack values (#32192)

Before this change the program was writing into the realloc region.
Direct mapping is going to  enforce permissions on the realloc region,
and the program doesn't have permissions to write, so move to working on
the stack to avoid access violation errors.

(cherry picked from commit 8757f8d)

Co-authored-by: Alessandro Decina <alessandro.d@gmail.com>

programs/sbf/c/src/float/float.c

@@ -15,18 +15,18 @@ extern uint64_t entrypoint(const uint8_t *input) {
     return ERROR_INVALID_ARGUMENT;
   }
   /* test float conversion to int compiles and works */
-  uint32_t *data = (uint32_t *)(params.ka[0].data);
-  uint32_t new_data = *data + 1;
-  *data += 1.5;
-  sol_assert(*data == new_data);
+  uint32_t data = *(uint32_t *)(params.ka[0].data);
+  uint32_t new_data = data + 1;
+  data += 1.5;
+  sol_assert(data == new_data);
 
   /* test signed division works for FP values */
   double value = (double)new_data + 1.0;
   value /= -2.0;
   sol_assert(value < 0.0);
 
   /* test that standard math functions are available */
-  value = *data + 1.0;
+  value = data + 1.0;
   sol_assert(log2(value) == 1.0);
 
   return SUCCESS;