ladybird/LibC/process.cpp

#include "process.h"
#include "errno.h"
#include <Kernel/Syscall.h>

extern "C" {

int spawn(const char* path, const char** args)
{
    int rc = Syscall::invoke(Syscall::Spawn, (dword)path, (dword)args);
    __RETURN_WITH_ERRNO(rc, rc, -1);
}

}
Lots of hacking: - Turn Keyboard into a CharacterDevice (85,1) at /dev/keyboard. - Implement MM::unmapRegionsForTask() and MM::unmapRegion() - Save SS correctly on interrupt. - Add a simple Spawn syscall for launching another process. - Move a bunch of IO syscall debug output behind DEBUG_IO. - Have ASSERT do a "cli" immediately when failing. This makes the output look proper every time. - Implement a bunch of syscalls in LibC. - Add a simple shell ("sh"). All it can do now is read a line of text from /dev/keyboard and then try launching the specified executable by calling spawn(). There are definitely bugs in here, but we're moving on forward. 2018-10-23 05:12:50 -03:00			`#include "process.h"`
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 07:06:00 -03:00			`#include "errno.h"`
Lots of hacking: - Turn Keyboard into a CharacterDevice (85,1) at /dev/keyboard. - Implement MM::unmapRegionsForTask() and MM::unmapRegion() - Save SS correctly on interrupt. - Add a simple Spawn syscall for launching another process. - Move a bunch of IO syscall debug output behind DEBUG_IO. - Have ASSERT do a "cli" immediately when failing. This makes the output look proper every time. - Implement a bunch of syscalls in LibC. - Add a simple shell ("sh"). All it can do now is read a line of text from /dev/keyboard and then try launching the specified executable by calling spawn(). There are definitely bugs in here, but we're moving on forward. 2018-10-23 05:12:50 -03:00			`#include <Kernel/Syscall.h>`

			`extern "C" {`

Implement argc/argv support for spawned tasks. Celebrate the new functionality with a simple /bin/cat implementation. :^) 2018-10-26 06:16:56 -03:00			`int spawn(const char* path, const char** args)`
Lots of hacking: - Turn Keyboard into a CharacterDevice (85,1) at /dev/keyboard. - Implement MM::unmapRegionsForTask() and MM::unmapRegion() - Save SS correctly on interrupt. - Add a simple Spawn syscall for launching another process. - Move a bunch of IO syscall debug output behind DEBUG_IO. - Have ASSERT do a "cli" immediately when failing. This makes the output look proper every time. - Implement a bunch of syscalls in LibC. - Add a simple shell ("sh"). All it can do now is read a line of text from /dev/keyboard and then try launching the specified executable by calling spawn(). There are definitely bugs in here, but we're moving on forward. 2018-10-23 05:12:50 -03:00			`{`
Implement argc/argv support for spawned tasks. Celebrate the new functionality with a simple /bin/cat implementation. :^) 2018-10-26 06:16:56 -03:00			`int rc = Syscall::invoke(Syscall::Spawn, (dword)path, (dword)args);`
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 07:06:00 -03:00			`__RETURN_WITH_ERRNO(rc, rc, -1);`
Lots of hacking: - Turn Keyboard into a CharacterDevice (85,1) at /dev/keyboard. - Implement MM::unmapRegionsForTask() and MM::unmapRegion() - Save SS correctly on interrupt. - Add a simple Spawn syscall for launching another process. - Move a bunch of IO syscall debug output behind DEBUG_IO. - Have ASSERT do a "cli" immediately when failing. This makes the output look proper every time. - Implement a bunch of syscalls in LibC. - Add a simple shell ("sh"). All it can do now is read a line of text from /dev/keyboard and then try launching the specified executable by calling spawn(). There are definitely bugs in here, but we're moving on forward. 2018-10-23 05:12:50 -03:00			`}`

			`}`