target-arm/cpu.h: Make cpu_init("nonexistent cpu") return NULL
The macro definition of cpu_init meant that if cpu_arm_init()
returned NULL this wouldn't result in cpu_init() itself returning
NULL. This had the effect that "-cpu foo" for some unknown CPU
name 'foo' would cause ARM targets to segfault rather than
generating a useful error message. Fix this by making cpu_init
a simple inline function.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Andreas Färber <afaerber@suse.de>
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 5eac070..d01285f 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -458,7 +458,15 @@
#define TARGET_PHYS_ADDR_SPACE_BITS 32
#define TARGET_VIRT_ADDR_SPACE_BITS 32
-#define cpu_init(model) (&cpu_arm_init(model)->env)
+static inline CPUARMState *cpu_init(const char *cpu_model)
+{
+ ARMCPU *cpu = cpu_arm_init(cpu_model);
+ if (cpu) {
+ return &cpu->env;
+ }
+ return NULL;
+}
+
#define cpu_exec cpu_arm_exec
#define cpu_gen_code cpu_arm_gen_code
#define cpu_signal_handler cpu_arm_signal_handler
