54 lines
954 B
ArmAsm
54 lines
954 B
ArmAsm
# Blackfin testcase for aborting an excepting insn immediately
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# mach: bfin
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# sim: --environment operating
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#include "test.h"
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.include "testutils.inc"
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# This test keeps P5 as the base of the EVT table
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.macro set_evt lvl:req, sym:req
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loadsym R1, \sym;
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[P5 + 4 * \lvl\()] = R1;
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.endm
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start
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# Set up exception handler
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imm32 P4, EVT3;
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loadsym R1, _evx;
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[P4] = R1;
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# Lower ourselves to userspace
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loadsym R1, _user;
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RETI = R1;
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RTI;
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_user:
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imm32 R0, 0x12345678;
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R1 = R0;
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imm32 P0, 0xffffffff;
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P1 = P0;
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_user_fail:
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# Sometimes this even causes immediate double faults when
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# exceptions are not exact since this may trigger multiple
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R0 = [P0++];
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JUMP fail_lvl;
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_evx:
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# RETX should be pointing to the right place
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loadsym R6, _user_fail;
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R7 = RETX;
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CC = R6 == R7;
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IF !CC JUMP fail_lvl;
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# R0 and P0 should be unchanged
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CC = R1 == R0;
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IF !CC JUMP fail_lvl;
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CC = P1 == P0;
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IF !CC JUMP fail_lvl;
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dbg_pass
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fail_lvl:
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dbg_fail
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