isa/rv64si/scall.S

   1 # See LICENSE for license details.
   2
   3 #*****************************************************************************
   4 # scall.S
   5 #-----------------------------------------------------------------------------
   6 #
   7 # Test syscall trap.
   8 #
   9
  10 #include "riscv_test.h"
  11 #include "test_macros.h"
  12
  13 RVTEST_RV64S
  14 RVTEST_CODE_BEGIN
  15
  16 #ifdef __MACHINE_MODE
  17   #define sscratch mscratch
  18   #define sstatus mstatus
  19   #define scause mcause
  20   #define sepc mepc
  21   #define stvec_handler mtvec_handler
  22   #undef SSTATUS_SPP
  23   #define SSTATUS_SPP MSTATUS_MPP
  24 #endif
  25
  26   li TESTNUM, 2
  27
  28   li t0, SSTATUS_SPP
  29   csrc sstatus, t0
  30   la t0, 1f
  31   csrw sepc, t0
  32   eret
  33 1:
  34
  35   scall
  36   j fail
  37
  38   TEST_PASSFAIL
  39
  40 stvec_handler:
  41   li t1, CAUSE_USER_ECALL
  42   csrr t0, scause
  43   bne t0, t1, fail
  44   j pass
  45
  46 RVTEST_CODE_END
  47
  48   .data
  49 RVTEST_DATA_BEGIN
  50
  51   TEST_DATA
  52
  53 RVTEST_DATA_END