ladybird/LibC/entry.cpp

#include <Kernel/Syscall.h>

extern "C" int main(int, char**);

int errno;

extern "C" int _start()
{
    errno = 0;

    // FIXME: Pass appropriate argc/argv.
    int status = main(0, nullptr);

    Syscall::invoke(Syscall::PosixExit, status);

    // Birger's birthday <3
    return 20150614;
}
Import very modest Userland. 2018-10-22 14:06:22 +02:00			`#include <Kernel/Syscall.h>`

			`extern "C" int main(int, char**);`

Implement errno in LibC. This also meant I had to implement BSS (SHT_NOBITS) sections in ELFLoader. I also added an strerror() so we can print out what the errors are. 2018-10-25 12:06:00 +02:00			`int errno;`

Link "id" against the LibC. We can now produce what should essentially be a runnable Serenity executable. 2018-10-22 14:13:17 +02:00			`extern "C" int _start()`
Import very modest Userland. 2018-10-22 14:06:22 +02:00			`{`
Implement errno in LibC. This also meant I had to implement BSS (SHT_NOBITS) sections in ELFLoader. I also added an strerror() so we can print out what the errors are. 2018-10-25 12:06:00 +02:00			`errno = 0;`

Import very modest Userland. 2018-10-22 14:06:22 +02:00			`// FIXME: Pass appropriate argc/argv.`
Launching an arbitrary ELF executable from disk works! :^) This is so cool! It's a bit messy now with two Task constructors, but eventually they should fold into a single constructor somehow. 2018-10-22 15:42:39 +02:00			`int status = main(0, nullptr);`

			`Syscall::invoke(Syscall::PosixExit, status);`
Import very modest Userland. 2018-10-22 14:06:22 +02:00
			`// Birger's birthday <3`
			`return 20150614;`
			`}`