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([2602:47:d483:7301:a064:e3f9:a812:973b]) by smtp.gmail.com with ESMTPSA id i12-20020aa78b4c000000b00678cb337353sm11156019pfd.208.2023.08.16.07.25.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Aug 2023 07:25:18 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Jordan Niethe Subject: [PATCH 1/4] tcg: Add tcg_out_tb_start backend hook Date: Wed, 16 Aug 2023 07:25:13 -0700 Message-Id: <20230816142516.469743-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230816142516.469743-1-richard.henderson@linaro.org> References: <20230816142516.469743-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42e; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42e.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org This hook may emit code at the beginning of the TB. Suggested-by: Jordan Niethe Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé --- tcg/tcg.c | 3 +++ tcg/aarch64/tcg-target.c.inc | 5 +++++ tcg/arm/tcg-target.c.inc | 5 +++++ tcg/i386/tcg-target.c.inc | 5 +++++ tcg/loongarch64/tcg-target.c.inc | 5 +++++ tcg/mips/tcg-target.c.inc | 5 +++++ tcg/ppc/tcg-target.c.inc | 5 +++++ tcg/riscv/tcg-target.c.inc | 5 +++++ tcg/s390x/tcg-target.c.inc | 5 +++++ tcg/sparc64/tcg-target.c.inc | 5 +++++ tcg/tci/tcg-target.c.inc | 5 +++++ 11 files changed, 53 insertions(+) diff --git a/tcg/tcg.c b/tcg/tcg.c index ddfe9a96cb..1e9b7433bb 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -108,6 +108,7 @@ static void tcg_register_jit_int(const void *buf, size_t size, __attribute__((unused)); /* Forward declarations for functions declared and used in tcg-target.c.inc. */ +static void tcg_out_tb_start(TCGContext *s); static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg1, intptr_t arg2); static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg); @@ -6009,6 +6010,8 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb, uint64_t pc_start) s->gen_insn_data = tcg_malloc(sizeof(uint64_t) * s->gen_tb->icount * start_words); + tcg_out_tb_start(s); + num_insns = -1; QTAILQ_FOREACH(op, &s->ops, link) { TCGOpcode opc = op->opc; diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc index 35ca80cd56..8d71ac68f6 100644 --- a/tcg/aarch64/tcg-target.c.inc +++ b/tcg/aarch64/tcg-target.c.inc @@ -3123,6 +3123,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_insn(s, 3207, RET, TCG_REG_LR); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static void tcg_out_nop_fill(tcg_insn_unit *p, int count) { int i; diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc index 83e286088f..7473b23672 100644 --- a/tcg/arm/tcg-target.c.inc +++ b/tcg/arm/tcg-target.c.inc @@ -2951,6 +2951,11 @@ static void tcg_out_epilogue(TCGContext *s) (1 << TCG_REG_R10) | (1 << TCG_REG_R11) | (1 << TCG_REG_PC)); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + typedef struct { DebugFrameHeader h; uint8_t fde_def_cfa[4]; diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index a6b2eae995..05581dd89d 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -4114,6 +4114,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_opc(s, OPC_RET, 0, 0, 0); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static void tcg_out_nop_fill(tcg_insn_unit *p, int count) { memset(p, 0x90, count); diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc index baf5fc3819..29281e954b 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -1698,6 +1698,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_opc_jirl(s, TCG_REG_ZERO, TCG_REG_RA, 0); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static void tcg_target_init(TCGContext *s) { unsigned long hwcap = qemu_getauxval(AT_HWCAP); diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc index 9faa8bdf0b..b4da737dbb 100644 --- a/tcg/mips/tcg-target.c.inc +++ b/tcg/mips/tcg-target.c.inc @@ -2628,6 +2628,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_opc_reg(s, OPC_OR, TCG_TMP3, TCG_TMP3, TCG_TMP1); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static void tcg_target_init(TCGContext *s) { tcg_target_detect_isa(); diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 511e14b180..a3255851fe 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -2482,6 +2482,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out32(s, BCLR | BO_ALWAYS); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static void tcg_out_exit_tb(TCGContext *s, uintptr_t arg) { tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R3, arg); diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc index eeaeb6b6e3..22834d087b 100644 --- a/tcg/riscv/tcg-target.c.inc +++ b/tcg/riscv/tcg-target.c.inc @@ -2054,6 +2054,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_opc_imm(s, OPC_JALR, TCG_REG_ZERO, TCG_REG_RA, 0); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static volatile sig_atomic_t got_sigill; static void sigill_handler(int signo, siginfo_t *si, void *data) diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index a94f7908d6..379aaef1e5 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -3457,6 +3457,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_insn(s, RR, BCR, S390_CC_ALWAYS, TCG_REG_R14); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static void tcg_out_nop_fill(tcg_insn_unit *p, int count) { memset(p, 0x07, count * sizeof(tcg_insn_unit)); diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc index ffcb879211..6458ca202d 100644 --- a/tcg/sparc64/tcg-target.c.inc +++ b/tcg/sparc64/tcg-target.c.inc @@ -955,6 +955,11 @@ static void tcg_target_qemu_prologue(TCGContext *s) tcg_out_movi_s13(s, TCG_REG_O0, 0); } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + static void tcg_out_nop_fill(tcg_insn_unit *p, int count) { int i; diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc index 253f27f174..95b3352f82 100644 --- a/tcg/tci/tcg-target.c.inc +++ b/tcg/tci/tcg-target.c.inc @@ -955,6 +955,11 @@ static inline void tcg_target_qemu_prologue(TCGContext *s) { } +static void tcg_out_tb_start(TCGContext *s) +{ + /* nothing to do */ +} + bool tcg_target_has_memory_bswap(MemOp memop) { return true;