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| author | Andrew Waterman <andrew@sifive.com> | 2020-03-11 16:35:35 -0700 |
|---|---|---|
| committer | Andrew Waterman <andrew@sifive.com> | 2020-03-11 16:35:35 -0700 |
| commit | 272093f3281b54cbf0a14c3ccdd3c0cb47a28fb5 (patch) | |
| tree | bfb40c5cfcdb4a7dd63641cf83c6244a1f1a35fe | |
| parent | ee576c08929905b07692f2e4c8a6b032752ae102 (diff) | |
| download | riscv-tests-272093f3281b54cbf0a14c3ccdd3c0cb47a28fb5.zip riscv-tests-272093f3281b54cbf0a14c3ccdd3c0cb47a28fb5.tar.gz riscv-tests-272093f3281b54cbf0a14c3ccdd3c0cb47a28fb5.tar.bz2 | |
Add comment explaining convoluted rv64mi-p-scall behavior
| -rw-r--r-- | isa/rv64si/scall.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/isa/rv64si/scall.S b/isa/rv64si/scall.S index 82f202a..9956e03 100644 --- a/isa/rv64si/scall.S +++ b/isa/rv64si/scall.S @@ -57,6 +57,12 @@ do_scall: TEST_PASSFAIL +# Depending on the test environment, the M-mode version of this test might +# not actually invoke the following handler. Instead, the usual ECALL +# handler in the test environment might detect the CAUSE_USER_ECALL or +# CAUSE_MACHINE_ECALL exception and mark the test as having passed. +# Either way, we'll get the coverage we desire: such a handler must check +# both mcause and TESTNUM, just like the following handler. .align 2 .global stvec_handler stvec_handler: |