Let CPUClass::class_by_name() handlers to return abstract classes,
and filter them once in the public cpu_class_by_name() method.
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Message-Id: <20230908112235.75914-3-phi...@linaro.org>
---
include/hw/core/cpu.h | 7 ++++---
hw/core/cpu-common.c | 14 +++++++++++---
target/alpha/cpu.c | 3 +--
target/arm/cpu.c | 3 +--
target/avr/cpu.c | 3 +--
target/cris/cpu.c | 3 +--
target/hexagon/cpu.c | 3 +--
target/loongarch/cpu.c | 3 +--
target/m68k/cpu.c | 3 +--
target/openrisc/cpu.c | 3 +--
target/riscv/cpu.c | 3 +--
target/rx/cpu.c | 6 +-----
target/sh4/cpu.c | 3 ---
target/tricore/cpu.c | 3 +--
target/xtensa/cpu.c | 3 +--
15 files changed, 27 insertions(+), 36 deletions(-)
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 6373aa4501..5d6f8dca43 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -102,7 +102,7 @@ struct SysemuCPUOps;
/**
* CPUClass:
* @class_by_name: Callback to map -cpu command line model name to an
- * instantiatable CPU type.
+ * instantiatable CPU type.
* @parse_features: Callback to parse command line arguments.
* @reset_dump_flags: #CPUDumpFlags to use for reset logging.
* @has_work: Callback for checking if there is work to do.
@@ -772,9 +772,10 @@ void cpu_reset(CPUState *cpu);
* @typename: The CPU base type.
* @cpu_model: The model string without any parameters.
*
- * Looks up a CPU #ObjectClass matching name @cpu_model.
+ * Looks up a concrete CPU #ObjectClass matching name @cpu_model.
*
- * Returns: A #CPUClass or %NULL if not matching class is found.
+ * Returns: A concrete #CPUClass or %NULL if no matching class is found
+ * or if the matching class is abstract.
*/
ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model);
diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c
index baa6d28b64..d4112b8919 100644
--- a/hw/core/cpu-common.c
+++ b/hw/core/cpu-common.c
@@ -146,10 +146,18 @@ static bool cpu_common_has_work(CPUState *cs)
ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model)
{
- CPUClass *cc = CPU_CLASS(object_class_by_name(typename));
+ ObjectClass *oc;
+ CPUClass *cc;
- assert(cpu_model && cc->class_by_name);
- return cc->class_by_name(cpu_model);
+ oc = object_class_by_name(typename);
+ cc = CPU_CLASS(oc);
+ 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;
+ }
+ return oc;
}
static void cpu_common_parse_features(const char *typename, char *features,
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c
index fae2cb6ec7..39cf841b3e 100644
--- a/target/alpha/cpu.c
+++ b/target/alpha/cpu.c
@@ -126,8 +126,7 @@ static ObjectClass *alpha_cpu_class_by_name(const char
*cpu_model)
int i;
oc = object_class_by_name(cpu_model);
- if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL &&
- !object_class_is_abstract(oc)) {
+ if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL) {
return oc;
}
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index df6496b019..25e9d2ae7b 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2401,8 +2401,7 @@ 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) ||
- object_class_is_abstract(oc)) {
+ 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 14d8b9d1f0..44de1e18d1 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -157,8 +157,7 @@ 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 ||
- object_class_is_abstract(oc)) {
+ if (object_class_dynamic_cast(oc, TYPE_AVR_CPU) == NULL) {
oc = NULL;
}
return oc;
diff --git a/target/cris/cpu.c b/target/cris/cpu.c
index be4a44c218..675b73ac04 100644
--- a/target/cris/cpu.c
+++ b/target/cris/cpu.c
@@ -95,8 +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) ||
- object_class_is_abstract(oc))) {
+ 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 1adc11b713..9d1ffc3b4b 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -63,8 +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) ||
- object_class_is_abstract(oc)) {
+ if (!oc || !object_class_dynamic_cast(oc, TYPE_HEXAGON_CPU)) {
return NULL;
}
return oc;
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index ef1bf89dac..06d1b9bb95 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -648,8 +648,7 @@ static ObjectClass *loongarch_cpu_class_by_name(const char
*cpu_model)
}
}
- if (object_class_dynamic_cast(oc, TYPE_LOONGARCH_CPU)
- && !object_class_is_abstract(oc)) {
+ if (object_class_dynamic_cast(oc, TYPE_LOONGARCH_CPU)) {
return oc;
}
return NULL;
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index 538d9473c2..11c7e0a790 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -111,8 +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 ||
- object_class_is_abstract(oc))) {
+ 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 f5a3d5273b..1173260017 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -164,8 +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) ||
- object_class_is_abstract(oc))) {
+ 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 ac4a6c7eec..63624e8b76 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -636,8 +636,7 @@ 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) ||
- object_class_is_abstract(oc)) {
+ if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU)) {
return NULL;
}
return oc;
diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index 4d0d3a0c8c..9cc9d9d15e 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -111,16 +111,12 @@ static ObjectClass *rx_cpu_class_by_name(const char
*cpu_model)
char *typename;
oc = object_class_by_name(cpu_model);
- if (oc != NULL && object_class_dynamic_cast(oc, TYPE_RX_CPU) != NULL &&
- !object_class_is_abstract(oc)) {
+ if (oc != NULL && object_class_dynamic_cast(oc, TYPE_RX_CPU) != NULL) {
return oc;
}
typename = g_strdup_printf(RX_CPU_TYPE_NAME("%s"), cpu_model);
oc = object_class_by_name(typename);
g_free(typename);
- if (oc != NULL && object_class_is_abstract(oc)) {
- oc = NULL;
- }
return oc;
}
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
index 788e41fea6..a8ec98b134 100644
--- a/target/sh4/cpu.c
+++ b/target/sh4/cpu.c
@@ -152,9 +152,6 @@ static ObjectClass *superh_cpu_class_by_name(const char
*cpu_model)
typename = g_strdup_printf(SUPERH_CPU_TYPE_NAME("%s"), s);
oc = object_class_by_name(typename);
- if (oc != NULL && object_class_is_abstract(oc)) {
- oc = NULL;
- }
out:
g_free(s);
diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c
index 5ca666ee12..034e01c189 100644
--- a/target/tricore/cpu.c
+++ b/target/tricore/cpu.c
@@ -132,8 +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) ||
- object_class_is_abstract(oc)) {
+ 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 ea1dae7390..e20fe87bf2 100644
--- a/target/xtensa/cpu.c
+++ b/target/xtensa/cpu.c
@@ -141,8 +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) ||
- object_class_is_abstract(oc)) {
+ if (oc == NULL || !object_class_dynamic_cast(oc, TYPE_XTENSA_CPU)) {
return NULL;
}
return oc;
--
2.41.0
