// 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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* Place a fake sigframe on the stack at a misaligned SP: on sigreturn
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* Kernel must spot this attempt and the test case is expected to be
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* terminated via SEGV.
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*/
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#include <signal.h>
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#include <ucontext.h>
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#include "test_signals_utils.h"
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#include "testcases.h"
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struct fake_sigframe sf;
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static int fake_sigreturn_misaligned_run(struct tdescr *td,
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siginfo_t *si, ucontext_t *uc)
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{
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/* just to fill the ucontext_t with something real */
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if (!get_current_context(td, &sf.uc))
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return 1;
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/* Forcing sigframe on misaligned SP (16 + 3) */
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fake_sigreturn(&sf, sizeof(sf), 3);
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return 1;
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}
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struct tdescr tde = {
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.name = "FAKE_SIGRETURN_MISALIGNED_SP",
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.descr = "Triggers a sigreturn with a misaligned sigframe",
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.sig_ok = SIGSEGV,
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.timeout = 3,
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.run = fake_sigreturn_misaligned_run,
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};
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