minimal plan9port to cross-build Jehanne

2021-12-22 10:35:45 +01:00
commit c43269a19e
245 changed files with 26213 additions and 0 deletions
--- a/lib/lib9/fork.c
+++ b/lib/lib9/fork.c
@ -0,0 +1,22 @@
+#include <u.h>
+#include <signal.h>
+#include <libc.h>
+#include "9proc.h"
+#undef fork
+
+int
+p9fork(void)
+{
+	int pid;
+	sigset_t all, old;
+
+	sigfillset(&all);
+	sigprocmask(SIG_SETMASK, &all, &old);
+	pid = fork();
+	if(pid == 0){
+		_clearuproc();
+		_p9uproc(0);
+	}
+	sigprocmask(SIG_SETMASK, &old, nil);
+	return pid;
+}