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([71.212.142.129]) by smtp.gmail.com with ESMTPSA id x5-20020aa793a5000000b0050dc7628201sm1522606pff.219.2022.04.30.06.30.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 30 Apr 2022 06:30:10 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 38/43] target/m68k: Enable semihosting for non-coldfire Date: Sat, 30 Apr 2022 06:29:27 -0700 Message-Id: <20220430132932.324018-39-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220430132932.324018-1-richard.henderson@linaro.org> References: <20220430132932.324018-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::102f; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102f.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: crwulff@gmail.com, alex.bennee@linaro.org, f4bug@amsat.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The libgloss m68k-semi.txt spec says that bkpt #0 may be used when the halt insn is not available. While halt is available for 68060, continue to support bkpt #0 for all m68k processors. Signed-off-by: Richard Henderson --- target/m68k/translate.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/target/m68k/translate.c b/target/m68k/translate.c index b7adc8f53d..51c546f26f 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -2775,6 +2775,15 @@ DISAS_INSN(swap) DISAS_INSN(bkpt) { +#ifndef CONFIG_USER_ONLY + /* The non-ColdFire semihosting insn is bkpt #0. */ + if (!m68k_feature(s->env, M68K_FEATURE_CF_ISA_A) + && !IS_USER(s) + && (insn & 7) == 0 + && maybe_semihosting(s)) { + return; + } +#endif gen_exception(s, s->base.pc_next, EXCP_DEBUG); }