RVTEST_RV64S
RVTEST_CODE_BEGIN
- # Set up stvec in case we trap.
- la t0, stvec
- csrw stvec, t0
- csrwi scycle, 0
+#ifdef __MACHINE_MODE
+ #define sscratch mscratch
+ #define sstatus mstatus
+ #define scause mcause
+ #define sepc mepc
+ #define stvec_handler mtvec_handler
+ #undef SSTATUS_SPP
+ #define SSTATUS_SPP MSTATUS_MPP
+#endif
csrwi sscratch, 3
TEST_CASE( 2, a0, 3, csrr a0, sscratch);
# Make sure writing the cycle counter causes an exception.
TEST_CASE(10, a0, 255, li a0, 255; csrrw a0, cycle, x0);
- # Enter user mode
- li t0, SSTATUS_PS
+ # jump to user land
+ li t0, SSTATUS_SPP
csrc sstatus, t0
la t0, 1f
csrw sepc, t0
# Make sure reading status in user mode causes an exception.
TEST_CASE(11, a0, 255, li a0, 255; csrr a0, sstatus);
- # Make sure rdcycle is legal in user mode.
- TEST_CASE(12, x0, 0, rdcycle a0)
-
# Exit by doing a syscall.
- TEST_CASE(13, x0, 1, scall)
+ TEST_CASE(12, x0, 1, scall)
# We should only fall through to this if scall failed.
TEST_PASSFAIL
-stvec:
- # Trapping on tests 10, 11, and 13 is usually good news.
+stvec_handler:
+ # Trapping on tests 11 and 12 is usually good news.
# Note that since the test didn't complete, TESTNUM is smaller by 1.
li t0, 9
beq TESTNUM, t0, privileged
li t0, 10
beq TESTNUM, t0, privileged
- li t0, 12
+ li t0, 11
beq TESTNUM, t0, syscall
# Trapping on other tests is bad news.
j fail
privileged:
- # Make sure CAUSE indicates a lack of privilege.
+ # Make sure scause indicates a lack of privilege.
csrr t0, scause
li t1, CAUSE_ILLEGAL_INSTRUCTION
bne t0, t1, fail
sret
syscall:
- # Make sure CAUSE indicates a syscall.
+ # Make sure scause indicates a syscall.
csrr t0, scause
- li t1, CAUSE_SCALL
+ li t1, CAUSE_USER_ECALL
bne t0, t1, fail
# We're done.