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Sat, 02 Sep 2023 21:31:31 -0700 (PDT) Received: from alarm.flets-east.jp ([2400:4050:a840:1e00:78d2:b862:10a7:d486]) by smtp.gmail.com with ESMTPSA id iz2-20020a170902ef8200b001bb9f104328sm5295792plb.146.2023.09.02.21.31.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 Sep 2023 21:31:31 -0700 (PDT) From: Akihiko Odaki To: Cc: =?utf-8?q?Alex_Benn=C3=A9e?= , Mikhail Tyutin , Aleksandr Anenkov , qemu-devel@nongnu.org, Akihiko Odaki , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Eduardo Habkost , Marcel Apfelbaum , Yanan Wang , Peter Maydell , Song Gao , Xiaojuan Yang , Daniel Henrique Barboza , =?utf-8?q?C=C3=A9dric_Le_G?= =?utf-8?q?oater?= , David Gibson , Greg Kurz , Nicholas Piggin , Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Liu Zhiwei , Richard Henderson , David Hildenbrand , Ilya Leoshkevich , Thomas Huth , Bastian Koppelmann , qemu-arm@nongnu.org (open list:ARM TCG CPUs), qemu-ppc@nongnu.org (open list:PowerPC TCG CPUs), qemu-riscv@nongnu.org (open list:RISC-V TCG CPUs), qemu-s390x@nongnu.org (open list:S390 TCG CPUs) Subject: [PATCH 4/8] hw/core/cpu: Return static value with gdb_arch_name() Date: Sun, 3 Sep 2023 13:30:14 +0900 Message-ID: <20230903043030.20708-5-akihiko.odaki@daynix.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230903043030.20708-1-akihiko.odaki@daynix.com> References: <20230903043030.20708-1-akihiko.odaki@daynix.com> MIME-Version: 1.0 Received-SPF: none client-ip=2607:f8b0:4864:20::52d; envelope-from=akihiko.odaki@daynix.com; helo=mail-pg1-x52d.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org All implementations of gdb_arch_name() returns dynamic duplicates of static strings. It's also unlikely that there will be an implementation of gdb_arch_name() that returns a truly dynamic value due to the nature of the function returning a well-known identifiers. Qualify the value gdb_arch_name() with const and make all of its implementations return static strings. Signed-off-by: Akihiko Odaki Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Reviewed-By: Michael Tokarev --- include/hw/core/cpu.h | 2 +- target/ppc/internal.h | 2 +- gdbstub/gdbstub.c | 4 +--- target/arm/cpu.c | 6 +++--- target/arm/cpu64.c | 4 ++-- target/i386/cpu.c | 6 +++--- target/loongarch/cpu.c | 4 ++-- target/ppc/gdbstub.c | 6 +++--- target/riscv/cpu.c | 6 +++--- target/s390x/cpu.c | 4 ++-- target/tricore/cpu.c | 4 ++-- 11 files changed, 23 insertions(+), 25 deletions(-) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index fdcbe87352..4f5c7eb04e 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -164,7 +164,7 @@ struct CPUClass { vaddr (*gdb_adjust_breakpoint)(CPUState *cpu, vaddr addr); const char *gdb_core_xml_file; - gchar * (*gdb_arch_name)(CPUState *cpu); + const gchar * (*gdb_arch_name)(CPUState *cpu); const char * (*gdb_get_dynamic_xml)(CPUState *cpu, const char *xmlname); void (*disas_set_info)(CPUState *cpu, disassemble_info *info); diff --git a/target/ppc/internal.h b/target/ppc/internal.h index 57acb3212c..974b37aa60 100644 --- a/target/ppc/internal.h +++ b/target/ppc/internal.h @@ -221,7 +221,7 @@ void destroy_ppc_opcodes(PowerPCCPU *cpu); /* gdbstub.c */ void ppc_gdb_init(CPUState *cs, PowerPCCPUClass *ppc); -gchar *ppc_gdb_arch_name(CPUState *cs); +const gchar *ppc_gdb_arch_name(CPUState *cs); /** * prot_for_access_type: diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 2772f07bbe..78711801db 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -379,11 +379,9 @@ static const char *get_feature_xml(const char *p, const char **newp, "" ""); if (cc->gdb_arch_name) { - gchar *arch = cc->gdb_arch_name(cpu); pstrcat(buf, buf_sz, ""); - pstrcat(buf, buf_sz, arch); + pstrcat(buf, buf_sz, cc->gdb_arch_name(cpu)); pstrcat(buf, buf_sz, ""); - g_free(arch); } pstrcat(buf, buf_sz, "gdb_core_xml_file); diff --git a/target/arm/cpu.c b/target/arm/cpu.c index d71a162070..4147c19597 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -2281,15 +2281,15 @@ static Property arm_cpu_properties[] = { DEFINE_PROP_END_OF_LIST() }; -static gchar *arm_gdb_arch_name(CPUState *cs) +static const gchar *arm_gdb_arch_name(CPUState *cs) { ARMCPU *cpu = ARM_CPU(cs); CPUARMState *env = &cpu->env; if (arm_feature(env, ARM_FEATURE_IWMMXT)) { - return g_strdup("iwmmxt"); + return "iwmmxt"; } - return g_strdup("arm"); + return "arm"; } #ifndef CONFIG_USER_ONLY diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index 96158093cc..6b91aab6b7 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -743,9 +743,9 @@ static void aarch64_cpu_finalizefn(Object *obj) { } -static gchar *aarch64_gdb_arch_name(CPUState *cs) +static const gchar *aarch64_gdb_arch_name(CPUState *cs) { - return g_strdup("aarch64"); + return "aarch64"; } static void aarch64_cpu_class_init(ObjectClass *oc, void *data) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 97ad229d8b..68bea8d3f0 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5910,12 +5910,12 @@ static void x86_cpu_load_model(X86CPU *cpu, X86CPUModel *model) memset(&env->user_features, 0, sizeof(env->user_features)); } -static gchar *x86_gdb_arch_name(CPUState *cs) +static const gchar *x86_gdb_arch_name(CPUState *cs) { #ifdef TARGET_X86_64 - return g_strdup("i386:x86-64"); + return "i386:x86-64"; #else - return g_strdup("i386"); + return "i386"; #endif } diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index ad93ecac92..49565da3fa 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -692,9 +692,9 @@ static const struct SysemuCPUOps loongarch_sysemu_ops = { }; #endif -static gchar *loongarch_gdb_arch_name(CPUState *cs) +static const gchar *loongarch_gdb_arch_name(CPUState *cs) { - return g_strdup("loongarch64"); + return "loongarch64"; } static void loongarch_cpu_class_init(ObjectClass *c, void *data) diff --git a/target/ppc/gdbstub.c b/target/ppc/gdbstub.c index ca39efdc35..72df36ca06 100644 --- a/target/ppc/gdbstub.c +++ b/target/ppc/gdbstub.c @@ -589,12 +589,12 @@ static int gdb_set_vsx_reg(CPUPPCState *env, uint8_t *mem_buf, int n) return 0; } -gchar *ppc_gdb_arch_name(CPUState *cs) +const gchar *ppc_gdb_arch_name(CPUState *cs) { #if defined(TARGET_PPC64) - return g_strdup("powerpc:common64"); + return "powerpc:common64"; #else - return g_strdup("powerpc:common"); + return "powerpc:common"; #endif } diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 6b93b04453..ef8faaaff5 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1939,17 +1939,17 @@ static Property riscv_cpu_properties[] = { DEFINE_PROP_END_OF_LIST(), }; -static gchar *riscv_gdb_arch_name(CPUState *cs) +static const gchar *riscv_gdb_arch_name(CPUState *cs) { RISCVCPU *cpu = RISCV_CPU(cs); CPURISCVState *env = &cpu->env; switch (riscv_cpu_mxl(env)) { case MXL_RV32: - return g_strdup("riscv:rv32"); + return "riscv:rv32"; case MXL_RV64: case MXL_RV128: - return g_strdup("riscv:rv64"); + return "riscv:rv64"; default: g_assert_not_reached(); } diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index df167493c3..cf4b5e43f2 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -284,9 +284,9 @@ static void s390_cpu_initfn(Object *obj) #endif } -static gchar *s390_gdb_arch_name(CPUState *cs) +static const gchar *s390_gdb_arch_name(CPUState *cs) { - return g_strdup("s390:64-bit"); + return "s390:64-bit"; } static Property s390x_cpu_properties[] = { diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c index 133a9ac70e..44e3ba6f0e 100644 --- a/target/tricore/cpu.c +++ b/target/tricore/cpu.c @@ -29,9 +29,9 @@ static inline void set_feature(CPUTriCoreState *env, int feature) env->features |= 1ULL << feature; } -static gchar *tricore_gdb_arch_name(CPUState *cs) +static const gchar *tricore_gdb_arch_name(CPUState *cs) { - return g_strdup("tricore"); + return "tricore"; } static void tricore_cpu_set_pc(CPUState *cs, vaddr value)