Stub __block_all_sigs/__restore_sigs, and raise

arch/wasm32/pthread_arch.h

@@ -12,3 +12,8 @@ static inline struct pthread *__pthread_self(void) {
 static inline void __wait(volatile int *addr, volatile int *waiters, int cnt, int priv) {}
 static inline void __wake(volatile void *addr, int cnt, int priv) {}
 static inline void __futexwait(volatile void *addr, int val, int priv) {}
+
+#define __block_all_sigs __block_all_sigs
+static inline void __block_all_sigs(void *set) {}
+static inline void __block_app_sigs(void *set) {}
+static inline void __restore_sigs(void *set) {}

src/internal/pthread_impl.h

@@ -172,9 +172,11 @@ void __acquire_ptc(void);
 void __release_ptc(void);
 void __inhibit_ptc(void);
 
+#ifndef __block_all_sigs
 void __block_all_sigs(void *);
 void __block_app_sigs(void *);
 void __restore_sigs(void *);
+#endif
 
 #define DEFAULT_STACK_SIZE 81920
 #define DEFAULT_GUARD_SIZE 4096

src/signal/wasm32/block.c

@@ -0,0 +1 @@
+#include "pthread_impl.h"

src/signal/wasm32/raise.c

@@ -0,0 +1,3 @@
+#include <signal.h>
+
+int raise(int sig) { }

src/thread/wasm32/__wait.c

@@ -0,0 +1,2 @@
+#include "pthread_impl.h"
+