From 09c7fbef766b43f6edb46b30546bd1b32ee12921 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Fri, 7 Nov 2014 22:55:53 +0300 Subject: [PATCH] target-xtensa: add entry overflow test Check that entry instruction raises window overflow exception when PS.CALLINC points to live registers. Signed-off-by: Max Filippov --- tests/tcg/xtensa/test_windowed.S | 51 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/tests/tcg/xtensa/test_windowed.S b/tests/tcg/xtensa/test_windowed.S index 3de6d37..d851e8f 100644 --- a/tests/tcg/xtensa/test_windowed.S +++ b/tests/tcg/xtensa/test_windowed.S @@ -299,4 +299,55 @@ test entry entry_test 12 test_end +.macro entry_overflow_test window, free, next_window + set_vector window_overflow_4, 0 + set_vector window_overflow_8, 0 + set_vector window_overflow_12, 0 + set_vector window_overflow_\next_window, 10f + + movi a2, \window + movi a2, \free + movi a2, \next_window + reset_window %(1 | ((1 | (1 << ((\next_window) / 4))) << ((\free) / 4))) + reset_ps + movi a2, 0x4000f | ((\window) << 14) + wsr a2, ps + isync + movi a3, 0x12345678 + j 1f + .align 4 +1: + entry a3, 0x5678 + test_fail + .align 4 +10: + rsr a2, epc1 + movi a3, 1b + assert eq, a2, a3 + movi a2, 2f + wsr a2, epc1 + + rsr a2, windowbase + movi a3, (\free) / 4 + assert eq, a2, a3 + rfwo +2: +.endm + +.macro all_entry_overflow_tests + .irp window, 4, 8, 12 + .irp next_window, 4, 8, 12 + .irp free, 4, 8, 12 + .if \free <= \window + entry_overflow_test \window, \free, \next_window + .endif + .endr + .endr + .endr +.endm + +test entry_overflow + all_entry_overflow_tests +test_end + test_suite_end -- 2.7.4