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 CAUSE_SUPERVISOR_ECALL
  23   #define CAUSE_SUPERVISOR_ECALL CAUSE_MACHINE_ECALL
  24 #endif
  25
  26   li TESTNUM, 2
  27   scall
  28   j fail
  29
  30   j pass
  31
  32   TEST_PASSFAIL
  33
  34 stvec_handler:
  35   li t1, CAUSE_SUPERVISOR_ECALL
  36   csrr t0, scause
  37   bne t0, t1, fail
  38   csrr t0, sepc
  39   addi t0, t0, 8
  40   csrw sepc, t0
  41   sret
  42
  43 RVTEST_CODE_END
  44
  45   .data
  46 RVTEST_DATA_BEGIN
  47
  48   TEST_DATA
  49
  50 RVTEST_DATA_END