Implement raise() with getcontext() / setcontext()

test/libc/calls/getcontext_test.c

@@ -54,7 +54,6 @@ TEST(getcontext, test) {
 TEST(getcontext, canReadAndWriteSignalMask) {
   sigset_t ss, old;
   volatile int n = 0;
-  __interruptible = true;
   sigemptyset(&ss);
   sigaddset(&ss, SIGUSR1);
   sigprocmask(SIG_SETMASK, &ss, &old);
@@ -72,8 +71,7 @@ TEST(getcontext, canReadAndWriteSignalMask) {
 }
 
 void SetGetContext(void) {
-  static int a;
-  a = 0;
+  int a = 0;
   getcontext(&context);
   if (!a) {
     a = 1;
@@ -82,9 +80,6 @@ void SetGetContext(void) {
 }
 
 BENCH(getcontext, bench) {
-  __interruptible = false;
-  EZBENCH2("getsetcontext nosig", donothing, SetGetContext());
-  __interruptible = true;
   EZBENCH2("getsetcontext", donothing, SetGetContext());
 }
 
@@ -99,10 +94,6 @@ BENCH(swapcontext, bench) {
     }
   } else {
     ready = true;
-    __interruptible = false;
-    EZBENCH2("swapcontextx2 nosig", donothing, swapcontext(&loop, &main));
-    // kprintf("dollar\n");
-    __interruptible = true;
     EZBENCH2("swapcontextx2", donothing, swapcontext(&loop, &main));
     // kprintf("dollar\n");
   }

test/libc/calls/raise_test.c

@@ -20,10 +20,12 @@
 #include "libc/calls/struct/sigaction.h"
 #include "libc/calls/struct/siginfo.h"
 #include "libc/dce.h"
+#include "libc/intrin/kprintf.h"
 #include "libc/runtime/runtime.h"
 #include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
 #include "libc/sysv/consts/sig.h"
+#include "libc/testlib/ezbench.h"
 #include "libc/testlib/subprocess.h"
 #include "libc/testlib/testlib.h"
 #include "libc/thread/thread.h"
@@ -67,9 +69,19 @@ void *Worker(void *arg) {
 }
 
 TEST(raise, threaded) {
+  SPAWN(fork);
   signal(SIGILL, SIG_DFL);
   pthread_t worker;
   ASSERT_EQ(0, pthread_create(&worker, 0, Worker, 0));
   ASSERT_EQ(0, pthread_join(worker, 0));
   pthread_exit(0);
+  EXITS(0);
+}
+
+void OnRaise(int sig) {
+}
+
+BENCH(raise, bench) {
+  signal(SIGUSR1, OnRaise);
+  EZBENCH2("raise", donothing, raise(SIGUSR1));
 }

test/libc/calls/sig_test.c

@@ -116,3 +116,8 @@ TEST(poll, interrupt) {
   ASSERT_TRUE(gotsig);
   ASSERT_TRUE(didit);
 }
+
+TEST(raise, zero) {
+  ASSERT_SYS(0, 0, raise(0));
+  ASSERT_SYS(EINVAL, -1, raise(-1));
+}

test/libc/thread/makecontext_test.c

@@ -64,7 +64,6 @@ void check_args(long x0, long x1, long x2, long x3, long x4, long x5, double f0,
 
 TEST(makecontext, args) {
   char stack[1024];
-  __interruptible = false;
   getcontext(&uc);
   uc.uc_link = &goback;
   uc.uc_stack.ss_sp = stack;