From d5be19f514ece5e20baf560f466ee46766e7d5a3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Fri, 8 Sep 2023 10:09:23 +0200 Subject: [PATCH] cpu: Call object_class_dynamic_cast() once in cpu_class_by_name() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit For all targets, the CPU class returned from CPUClass::class_by_name() and object_class_dynamic_cast(oc, CPU_RESOLVING_TYPE) need to be compatible. Lets apply the check in cpu_class_by_name() for once, instead of having the check in CPUClass::class_by_name() for individual target. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Gavin Shan Reviewed-by: Igor Mammedov Reviewed-by: Richard Henderson Signed-off-by: Gavin Shan Message-ID: <20231114235628.534334-4-gshan@redhat.com> --- hw/core/cpu-common.c | 8 +++++--- target/alpha/cpu.c | 3 --- target/arm/cpu.c | 4 +--- target/avr/cpu.c | 8 +------- target/cris/cpu.c | 4 +--- target/hexagon/cpu.c | 4 +--- target/hppa/cpu.c | 6 +----- target/loongarch/cpu.c | 8 +------- target/m68k/cpu.c | 4 +--- target/openrisc/cpu.c | 4 +--- target/riscv/cpu.c | 4 +--- target/tricore/cpu.c | 4 +--- target/xtensa/cpu.c | 4 +--- 13 files changed, 16 insertions(+), 49 deletions(-) diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c index 82dae51a55..d0e7bbdf06 100644 --- a/hw/core/cpu-common.c +++ b/hw/core/cpu-common.c @@ -154,10 +154,12 @@ ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model) assert(cc->class_by_name); assert(cpu_model); oc = cc->class_by_name(cpu_model); - if (oc == NULL || object_class_is_abstract(oc)) { - return NULL; + if (object_class_dynamic_cast(oc, typename) && + !object_class_is_abstract(oc)) { + return oc; } - return oc; + + return NULL; } static void cpu_common_parse_features(const char *typename, char *features, diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c index 91fe8ae095..83345c5c7d 100644 --- a/target/alpha/cpu.c +++ b/target/alpha/cpu.c @@ -141,9 +141,6 @@ static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(ALPHA_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_ALPHA_CPU)) { - return NULL; - } return oc; } diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 650e09b29c..1c8b787482 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -2411,9 +2411,7 @@ static ObjectClass *arm_cpu_class_by_name(const char *cpu_model) oc = object_class_by_name(typename); g_strfreev(cpuname); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU)) { - return NULL; - } + return oc; } diff --git a/target/avr/cpu.c b/target/avr/cpu.c index 999c010ded..3e478294a6 100644 --- a/target/avr/cpu.c +++ b/target/avr/cpu.c @@ -160,13 +160,7 @@ static Property avr_cpu_properties[] = { static ObjectClass *avr_cpu_class_by_name(const char *cpu_model) { - ObjectClass *oc; - - oc = object_class_by_name(cpu_model); - if (object_class_dynamic_cast(oc, TYPE_AVR_CPU) == NULL) { - oc = NULL; - } - return oc; + return object_class_by_name(cpu_model); } static void avr_cpu_dump_state(CPUState *cs, FILE *f, int flags) diff --git a/target/cris/cpu.c b/target/cris/cpu.c index 675b73ac04..a5083a0077 100644 --- a/target/cris/cpu.c +++ b/target/cris/cpu.c @@ -95,9 +95,7 @@ static ObjectClass *cris_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(CRIS_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc != NULL && !object_class_dynamic_cast(oc, TYPE_CRIS_CPU)) { - oc = NULL; - } + return oc; } diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index 9d1ffc3b4b..aa48f5fe89 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -63,9 +63,7 @@ static ObjectClass *hexagon_cpu_class_by_name(const char *cpu_model) oc = object_class_by_name(typename); g_strfreev(cpuname); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_HEXAGON_CPU)) { - return NULL; - } + return oc; } diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c index e3e7200b1d..1a5fb6c65b 100644 --- a/target/hppa/cpu.c +++ b/target/hppa/cpu.c @@ -160,12 +160,8 @@ static void hppa_cpu_initfn(Object *obj) static ObjectClass *hppa_cpu_class_by_name(const char *cpu_model) { g_autofree char *typename = g_strconcat(cpu_model, "-cpu", NULL); - ObjectClass *oc = object_class_by_name(typename); - if (oc && object_class_dynamic_cast(oc, TYPE_HPPA_CPU)) { - return oc; - } - return NULL; + return object_class_by_name(typename); } static void hppa_cpu_list_entry(gpointer data, gpointer user_data) diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 07319d6fb9..81f2d8d8ed 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -718,15 +718,9 @@ static ObjectClass *loongarch_cpu_class_by_name(const char *cpu_model) g_autofree char *typename = g_strdup_printf(LOONGARCH_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); - if (!oc) { - return NULL; - } } - if (object_class_dynamic_cast(oc, TYPE_LOONGARCH_CPU)) { - return oc; - } - return NULL; + return oc; } void loongarch_cpu_dump_state(CPUState *cs, FILE *f, int flags) diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index 43b1bde21c..1421e77c2c 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -111,9 +111,7 @@ static ObjectClass *m68k_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(M68K_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc != NULL && object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL) { - return NULL; - } + return oc; } diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index 1173260017..f7d53c592a 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -164,9 +164,7 @@ static ObjectClass *openrisc_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(OPENRISC_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc != NULL && !object_class_dynamic_cast(oc, TYPE_OPENRISC_CPU)) { - return NULL; - } + return oc; } diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 83c7c0cf07..523e9a16ea 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -646,9 +646,7 @@ static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model) oc = object_class_by_name(typename); g_strfreev(cpuname); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU)) { - return NULL; - } + return oc; } diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c index 034e01c189..8acacdf0c0 100644 --- a/target/tricore/cpu.c +++ b/target/tricore/cpu.c @@ -132,9 +132,7 @@ static ObjectClass *tricore_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(TRICORE_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (!oc || !object_class_dynamic_cast(oc, TYPE_TRICORE_CPU)) { - return NULL; - } + return oc; } diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index e20fe87bf2..93e782a6e0 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -141,9 +141,7 @@ static ObjectClass *xtensa_cpu_class_by_name(const char *cpu_model) typename = g_strdup_printf(XTENSA_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); g_free(typename); - if (oc == NULL || !object_class_dynamic_cast(oc, TYPE_XTENSA_CPU)) { - return NULL; - } + return oc; } -- 2.11.4.GIT