// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2019 ARM Limited
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*
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* Try to mangle the ucontext from inside a signal handler, toggling
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* the execution state bit: this attempt must be spotted by Kernel and
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* the test case is expected to be terminated via SEGV.
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*/
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#include "test_signals_utils.h"
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#include "testcases.h"
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static int mangle_invalid_pstate_run(struct tdescr *td, siginfo_t *si,
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ucontext_t *uc)
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{
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ASSERT_GOOD_CONTEXT(uc);
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/* This config should trigger a SIGSEGV by Kernel */
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uc->uc_mcontext.pstate ^= PSR_MODE32_BIT;
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return 1;
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}
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struct tdescr tde = {
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.sanity_disabled = true,
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.name = "MANGLE_PSTATE_INVALID_STATE_TOGGLE",
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.descr = "Mangling uc_mcontext with INVALID STATE_TOGGLE",
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.sig_trig = SIGUSR1,
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.sig_ok = SIGSEGV,
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.run = mangle_invalid_pstate_run,
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};
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