feat: lib seaHEADmain

1 files changed, 28 insertions, 0 deletions

diff --git a/sysroot/usr/lib/libc/crt0.c b/sysroot/usr/lib/libc/crt0.c
new file mode 100644
index 0000000..16c3a94
--- /dev/null
+++ b/sysroot/usr/lib/libc/crt0.c
@@ -0,0 +1,28 @@
+#include <stdlib.h>
+
+extern int main(int argc, char** argv);
+
+void _start(const char* arg, unsigned long arglen)
+{
+    static char arg_buffer[256];
+    char* argv[3];
+    int argc = 1;
+    argv[0] = "";
+
+    if (arglen > 0)
+    {
+        unsigned long count = arglen;
+        if (count > sizeof(arg_buffer) - 1)
+            count = sizeof(arg_buffer) - 1;
+        for (unsigned long i = 0; i < count; i++)
+            arg_buffer[i] = arg[i];
+        arg_buffer[count] = 0;
+        argv[1] = arg_buffer;
+        argc = 2;
+    }
+    else
+        argv[1] = NULL;
+
+    argv[argc] = NULL;
+    exit(main(argc, argv));
+}