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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::42f; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1629576159029100001 Content-Type: text/plain; charset="utf-8" This will shortly be raised for execution with a misaligned pc. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- linux-user/aarch64/cpu_loop.c | 44 +++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 17 deletions(-) diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c index 11e34cb100..6e03afb2bd 100644 --- a/linux-user/aarch64/cpu_loop.c +++ b/linux-user/aarch64/cpu_loop.c @@ -78,7 +78,7 @@ void cpu_loop(CPUARMState *env) { CPUState *cs =3D env_cpu(env); - int trapnr, ec, fsc, si_code; + int trapnr, ec, fsc, si_sig, si_code; abi_long ret; =20 for (;;) { @@ -112,28 +112,38 @@ void cpu_loop(CPUARMState *env) break; case EXCP_PREFETCH_ABORT: case EXCP_DATA_ABORT: - /* We should only arrive here with EC in {DATAABORT, INSNABORT= }. */ ec =3D syn_get_ec(env->exception.syndrome); - assert(ec =3D=3D EC_DATAABORT || ec =3D=3D EC_INSNABORT); - - /* Both EC have the same format for FSC, or close enough. */ - fsc =3D extract32(env->exception.syndrome, 0, 6); - switch (fsc) { - case 0x04 ... 0x07: /* Translation fault, level {0-3} */ - si_code =3D TARGET_SEGV_MAPERR; + switch (ec) { + case EC_DATAABORT: + case EC_INSNABORT: + /* Both EC have the same format for FSC, or close enough. = */ + fsc =3D extract32(env->exception.syndrome, 0, 6); + switch (fsc) { + case 0x04 ... 0x07: /* Translation fault, level {0-3} */ + si_sig =3D TARGET_SIGSEGV; + si_code =3D TARGET_SEGV_MAPERR; + break; + case 0x09 ... 0x0b: /* Access flag fault, level {1-3} */ + case 0x0d ... 0x0f: /* Permission fault, level {1-3} */ + si_sig =3D TARGET_SIGSEGV; + si_code =3D TARGET_SEGV_ACCERR; + break; + case 0x11: /* Synchronous Tag Check Fault */ + si_sig =3D TARGET_SIGSEGV; + si_code =3D TARGET_SEGV_MTESERR; + break; + default: + g_assert_not_reached(); + } break; - case 0x09 ... 0x0b: /* Access flag fault, level {1-3} */ - case 0x0d ... 0x0f: /* Permission fault, level {1-3} */ - si_code =3D TARGET_SEGV_ACCERR; - break; - case 0x11: /* Synchronous Tag Check Fault */ - si_code =3D TARGET_SEGV_MTESERR; + case EC_PCALIGNMENT: + si_sig =3D TARGET_SIGBUS; + si_code =3D TARGET_BUS_ADRALN; break; default: g_assert_not_reached(); } - - force_sig_fault(TARGET_SIGSEGV, si_code, env->exception.vaddre= ss); + force_sig_fault(si_sig, si_code, env->exception.vaddress); break; case EXCP_DEBUG: case EXCP_BKPT: --=20 2.25.1