We're going to want v7m_using_psp() in op_helper.c in the
next patch, so move it from helper.c to internals.h.
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Message-id: 20181002163556.10279-4-peter.mayd...@linaro.org
---
target/arm/internals.h | 16 ++++++++++++++++
target/arm/helper.c | 12 ------------
2 files changed, 16 insertions(+), 12 deletions(-)
diff --git a/target/arm/internals.h b/target/arm/internals.h
index 24c0444c8d2..2495681435d 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -801,4 +801,20 @@ static inline uint32_t arm_debug_exception_fsr(CPUARMState
*env)
*/
#define MEMOPIDX_SHIFT 8
+/**
+ * v7m_using_psp: Return true if using process stack pointer
+ * Return true if the CPU is currently using the process stack
+ * pointer, or false if it is using the main stack pointer.
+ */
+static inline bool v7m_using_psp(CPUARMState *env)
+{
+ /* Handler mode always uses the main stack; for thread mode
+ * the CONTROL.SPSEL bit determines the answer.
+ * Note that in v7M it is not possible to be in Handler mode with
+ * CONTROL.SPSEL non-zero, but in v8M it is, so we must check both.
+ */
+ return !arm_v7m_is_handler_mode(env) &&
+ env->v7m.control[env->v7m.secure] & R_V7M_CONTROL_SPSEL_MASK;
+}
+
#endif
diff --git a/target/arm/helper.c b/target/arm/helper.c
index a9a2173cb2f..7ffd1840447 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6582,18 +6582,6 @@ pend_fault:
return false;
}
-/* Return true if we're using the process stack pointer (not the MSP) */
-static bool v7m_using_psp(CPUARMState *env)
-{
- /* Handler mode always uses the main stack; for thread mode
- * the CONTROL.SPSEL bit determines the answer.
- * Note that in v7M it is not possible to be in Handler mode with
- * CONTROL.SPSEL non-zero, but in v8M it is, so we must check both.
- */
- return !arm_v7m_is_handler_mode(env) &&
- env->v7m.control[env->v7m.secure] & R_V7M_CONTROL_SPSEL_MASK;
-}
-
/* Write to v7M CONTROL.SPSEL bit for the specified security bank.
* This may change the current stack pointer between Main and Process
* stack pointers if it is done for the CONTROL register for the current
--
2.19.0
