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[66.27.222.29]) by smtp.gmail.com with ESMTPSA id q132sm3835462pfq.171.2021.02.03.17.45.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Feb 2021 17:45:16 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 02/93] tcg: Split out tcg_raise_tb_overflow Date: Wed, 3 Feb 2021 15:43:38 -1000 Message-Id: <20210204014509.882821-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210204014509.882821-1-richard.henderson@linaro.org> References: <20210204014509.882821-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::102e; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102e.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: sw@weilnetz.de Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" Allow other places in tcg to restart with a smaller tb. Signed-off-by: Richard Henderson --- tcg/tcg.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) -- 2.25.1 diff --git a/tcg/tcg.c b/tcg/tcg.c index 63a12b197b..bbe3dcee03 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -346,6 +346,12 @@ static void set_jmp_reset_offset(TCGContext *s, int which) s->tb_jmp_reset_offset[which] = tcg_current_code_size(s); } +/* Signal overflow, starting over with fewer guest insns. */ +static void QEMU_NORETURN tcg_raise_tb_overflow(TCGContext *s) +{ + siglongjmp(s->jmp_trans, -2); +} + #define C_PFX1(P, A) P##A #define C_PFX2(P, A, B) P##A##_##B #define C_PFX3(P, A, B, C) P##A##_##B##_##C @@ -1310,8 +1316,7 @@ static TCGTemp *tcg_temp_alloc(TCGContext *s) int n = s->nb_temps++; if (n >= TCG_MAX_TEMPS) { - /* Signal overflow, starting over with fewer guest insns. */ - siglongjmp(s->jmp_trans, -2); + tcg_raise_tb_overflow(s); } return memset(&s->temps[n], 0, sizeof(TCGTemp)); }