binutils-gdb/sim/testsuite/bfin/cec-exact-exception.S
Mike Frysinger 1368b914e9 sim: testsuite: flatten tree
Now that all port tests live under testsuite/sim/*/, and none live
in testsuite/ directly, flatten the structure by moving all of the
dirs under testsuite/sim/ to testsuite/ directly.

We need to stop passing --tool to dejagnu so that it searches all
dirs and not just ones that start with "sim".  Since we have no
other dirs in this tree, and no plans to add any, should be fine.
2021-01-15 19:18:34 -05:00

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954 B
ArmAsm

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