[PATCH v7 16/40] target/arm: Explicit v7M cores use arm_cpu_has_work as CPUClass:has_work

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

ARM v7M cores inherit TYPE_ARM_CPU, so TYPE_ARM_CPU's class_init runs
first and sets up most of the class fields, setting in particular the
has_work handler to the generic arm_cpu_has_work(). Thus M-profile
and A-profile share the same arm_cpu_has_work() function. Some of the
checks the code there does are perhaps unnecessary for M-profile, but
they're harmless.

Since we want to move the has_work handler from CPUClass to TCGCPUOps,
the next commit will be more explicit if we already register this
handler in arm_v7m_class_init(). Since arm_cpu_has_work() is static to
target/arm/cpu.c, we have to declare it in "internals.h" to be able to
use it in target/arm/cpu_tcg.c.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 target/arm/internals.h | 2 ++
 target/arm/cpu.c       | 2 +-
 target/arm/cpu_tcg.c   | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/arm/internals.h b/target/arm/internals.h
index 9fbb3649682..f20aeb97fa0 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -177,6 +177,8 @@ void arm_translate_init(void);
 void arm_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb);
 #endif /* CONFIG_TCG */
 
+bool arm_cpu_has_work(CPUState *cs);
+
 /**
  * aarch64_sve_zcr_get_valid_len:
  * @cpu: cpu context
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 641a8c2d3d3..4b08f717f64 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -76,7 +76,7 @@ void arm_cpu_synchronize_from_tb(CPUState *cs,
 }
 #endif /* CONFIG_TCG */
 
-static bool arm_cpu_has_work(CPUState *cs)
+bool arm_cpu_has_work(CPUState *cs)
 {
     ARMCPU *cpu = ARM_CPU(cs);
 
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
index 0d5adccf1a7..9a0927ad5d0 100644
--- a/target/arm/cpu_tcg.c
+++ b/target/arm/cpu_tcg.c
@@ -920,6 +920,7 @@ static void arm_v7m_class_init(ObjectClass *oc, void *data)
 
     acc->info = data;
 #ifdef CONFIG_TCG
+    cc->has_work = arm_cpu_has_work;
     cc->tcg_ops = &arm_v7m_tcg_ops;
 #endif /* CONFIG_TCG */
 
-- 
2.31.1