Add two inline functions that work with the signal set of the target.
target_sigdelset() removes a signal from target_sigset_t.
target_sigorset() creates a union of two target_sigset_t.
These functions will be used for introducing support for tracking the
target signal set. Functions for emptying and adding into a target signal
set already exist so this commit will serve as a supplement.
Signed-off-by: Miloš Stojanović <milos.stojano...@rt-rk.com>
---
linux-user/signal.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 2bc6669..59d70ec 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -120,6 +120,12 @@ static inline void target_sigaddset(target_sigset_t *set,
int signum)
set->sig[signum / TARGET_NSIG_BPW] |= mask;
}
+static inline void target_sigdelset(target_sigset_t *set, int signum)
+{
+ abi_ulong mask = (abi_ulong)1 << (--signum % TARGET_NSIG_BPW);
+ set->sig[signum / TARGET_NSIG_BPW] &= ~mask;
+}
+
static inline int target_sigismember(const target_sigset_t *set, int signum)
{
signum--;
@@ -127,6 +133,16 @@ static inline int target_sigismember(const target_sigset_t
*set, int signum)
return ((set->sig[signum / TARGET_NSIG_BPW] & mask) != 0);
}
+static inline void target_sigorset(target_sigset_t *set,
+ const target_sigset_t *left,
+ const target_sigset_t *right)
+{
+ int i;
+ for (i = 0; i < TARGET_NSIG_WORDS; i++) {
+ set->sig[i] = left->sig[i] | right->sig[i];
+ }
+}
+
static void host_to_target_sigset_internal(target_sigset_t *d,
const sigset_t *s)
{
--
1.9.1
