arm, linux: Implement signal handling functions

Signed-off-by: Pekka Enberg <penberg@kernel.org>

1 files changed, 11 insertions, 4 deletions

diff --git a/sys/linux-arm/signal.c b/sys/linux-arm/signal.c
index b6fd5b18..10112f00 100644
--- a/sys/linux-arm/signal.c
+++ b/sys/linux-arm/signal.c
@@ -6,15 +6,22 @@
 
 bool signal_from_native(void *ctx)
 {
-	assert(!"not implemented");
+	ucontext_t *uc = ctx;
+	struct sigcontext *sc = &uc->uc_mcontext;
+
+	return is_native(sc->arm_pc);
 }
 
-int install_signal_bh(void *ctx, signal_bh_fn bh)
+struct compilation_unit *get_signal_source_cu(void *ctx)
 {
-	assert(!"not implemented");
+	ucontext_t *uc = ctx;
+	struct sigcontext *sc = &uc->uc_mcontext;
+
+	return jit_lookup_cu(sc->arm_pc);
 }
 
-struct compilation_unit *get_signal_source_cu(void *ctx)
+int install_signal_bh(void *ctx, signal_bh_fn bh)
 {
 	assert(!"not implemented");
 }
+