From: Jamie Iles <jamie@nuviainc.com>
The sequence cpu_restore_state() + raise_exception() is equivalent to
raise_exception_ra(), so use that instead. (In this case we never
cared about the syndrome value, because M-profile doesn't use the
syndrome; the old code was just written unnecessarily awkwardly.)
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jamie Iles <jamie@nuviainc.com>
[PMM: Retain edited version of comment; rewrite commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
target/arm/m_helper.c | 5 +----
target/arm/op_helper.c | 9 +++------
2 files changed, 4 insertions(+), 10 deletions(-)
diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c
index eda74e55450..074c5434550 100644
@@ -2601,10 +2601,7 @@ void HELPER(v7m_msr)(CPUARMState *env, uint32_t maskreg, uint32_t val)
limit = is_psp ? env->v7m.psplim[false] : env->v7m.msplim[false];
if (val < limit) {
- CPUState *cs = env_cpu(env);
-
- cpu_restore_state(cs, GETPC(), true);
- raise_exception(env, EXCP_STKOF, 0, 1);
+ raise_exception_ra(env, EXCP_STKOF, 0, 1, GETPC());
}
if (is_psp) {
diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c
index 4132f5e430f..e98fd863057 100644
@@ -95,15 +95,12 @@ void HELPER(v8m_stackcheck)(CPUARMState *env, uint32_t newvalue)
* raising an exception if the limit is breached.
*/
if (newvalue < v7m_sp_limit(env)) {
- CPUState *cs = env_cpu(env);
-
/*
* Stack limit exceptions are a rare case, so rather than syncing
- * PC/condbits before the call, we use cpu_restore_state() to
- * get them right before raising the exception.
+ * PC/condbits before the call, we use raise_exception_ra() so
+ * that cpu_restore_state() will sort them out.
*/
- cpu_restore_state(cs, GETPC(), true);
- raise_exception(env, EXCP_STKOF, 0, 1);
+ raise_exception_ra(env, EXCP_STKOF, 0, 1, GETPC());
}
}
--
2.20.1