lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/lib/mlibc/sysdeps/keyronex/generic/signal.cpp b/lib/mlibc/sysdeps/keyronex/generic/signal.cpp
new file mode 100644
index 0000000..ead3dee
--- /dev/null
+++ b/lib/mlibc/sysdeps/keyronex/generic/signal.cpp
@@ -0,0 +1,66 @@
+#include <sys/types.h>
+
+#include <keyronex/syscall.h>
+#include <mlibc/ansi-sysdeps.hpp>
+#include <mlibc/posix-sysdeps.hpp>
+#include <mlibc/debug.hpp>
+
+namespace mlibc {
+
+int
+sys_sigprocmask(int how, const sigset_t *__restrict set,
+    sigset_t *__restrict retrieve)
+{
+	auto ret = syscall3(kPXSysSigMask, how, (uintptr_t)set,
+	    (uintptr_t)retrieve, NULL);
+	if (int e = sc_error(ret); e) {
+		return e;
+	}
+
+	return 0;
+}
+
+int
+sys_sigaction(int signal, const struct sigaction *__restrict action,
+    struct sigaction *__restrict oldAction)
+{
+	auto ret = syscall3(kPXSysSigAction, signal, (uintptr_t)action,
+	    (uintptr_t)oldAction, NULL);
+	if (int e = sc_error(ret); e) {
+		return e;
+	}
+
+	return 0;
+}
+
+int
+sys_kill(int pid, int signal)
+{
+	if (signal == 0) {
+		mlibc::infoLogger() << "Sending signal 0! Allowing" << frg::endlog;
+		return 0;
+	}
+
+	auto ret = syscall2(kPXSysSigSend, pid, signal, NULL);
+	if (int e = sc_error(ret); e) {
+		return e;
+	}
+
+	return 0;
+}
+
+int
+sys_sigsuspend(const sigset_t *set)
+{
+	auto ret = syscall1(kPXSysSigSuspend, (uintptr_t)set, NULL);
+	if (int e = sc_error(ret); e) {
+		return e;
+	}
+
+	mlibc::panicLogger()
+	    << "Unexpected zero return from sigsuspend()" << frg::endlog;
+
+	return 0;
+}
+
+}
\ No newline at end of file