banan-os/kernel/arch/i686/Thread.S

# uint32_t read_ip()
.global read_ip
read_ip:
	popl %eax
	jmp *%eax

# void start_thread(uint32_t sp, uint32_t ip)
.global start_thread
start_thread:
	movl 8(%esp), %edi # ip
	movl 4(%esp), %esp # sp

	# STACK LAYOUT
	#   NULL
	#   thread ptr
	#   &Thread::on_exit
	#   data

	xorl %ebp, %ebp

	sti
	call *%edi

	movl 4(%esp), %edi # &Thread::on_exit

	movl 8(%esp), %eax # thread ptr
	movl %eax, (%esp)

	call *%edi


# void continue_thread(uint32_t sp, uint32_t ip)
.global continue_thread
continue_thread:
	movl 8(%esp), %edi # ip
	movl 4(%esp), %esp # sp
	xorl %eax, %eax
	jmp *%edi

# void thread_userspace_trampoline(uint32_t sp, uint32_t ip, int argc, char** argv, char** envp)
.global thread_userspace_trampoline
thread_userspace_trampoline:
	ud2
Kernel: Rename rsp->sp and rip->ip This makes more sense if we support i386 2024-03-22 14:48:33 +02:00			`# uint32_t read_ip()`
			`.global read_ip`
			`read_ip:`
Kernel: Improve multithreading support We can now use arbitary BAN::function<void(...)> as the Thread. I also implemented multithreading for i386 since it was not done on the initial multithreading commit. 2023-02-02 23:24:12 +02:00			`popl %eax`
			`jmp *%eax`

Kernel: Rename rsp->sp and rip->ip This makes more sense if we support i386 2024-03-22 14:48:33 +02:00			`# void start_thread(uint32_t sp, uint32_t ip)`
Kernel: Improve multithreading support We can now use arbitary BAN::function<void(...)> as the Thread. I also implemented multithreading for i386 since it was not done on the initial multithreading commit. 2023-02-02 23:24:12 +02:00			`.global start_thread`
			`start_thread:`
Kernel: Implement Thread trampolines for x86_32 2024-03-26 19:42:14 +02:00			`movl 8(%esp), %edi # ip`
			`movl 4(%esp), %esp # sp`

			`# STACK LAYOUT`
			`# NULL`
			`# thread ptr`
			`# &Thread::on_exit`
			`# data`

			`xorl %ebp, %ebp`

			`sti`
			`call *%edi`

			`movl 4(%esp), %edi # &Thread::on_exit`

			`movl 8(%esp), %eax # thread ptr`
			`movl %eax, (%esp)`

			`call *%edi`

Kernel: Improve multithreading support We can now use arbitary BAN::function<void(...)> as the Thread. I also implemented multithreading for i386 since it was not done on the initial multithreading commit. 2023-02-02 23:24:12 +02:00
Kernel: Rename rsp->sp and rip->ip This makes more sense if we support i386 2024-03-22 14:48:33 +02:00			`# void continue_thread(uint32_t sp, uint32_t ip)`
Kernel: Improve multithreading support We can now use arbitary BAN::function<void(...)> as the Thread. I also implemented multithreading for i386 since it was not done on the initial multithreading commit. 2023-02-02 23:24:12 +02:00			`.global continue_thread`
			`continue_thread:`
Kernel: Implement Thread trampolines for x86_32 2024-03-26 19:42:14 +02:00			`movl 8(%esp), %edi # ip`
			`movl 4(%esp), %esp # sp`
			`xorl %eax, %eax`
			`jmp *%edi`
Kernel: We can create basic userspace processes These are still allocated on the kernel memory 2023-04-12 17:51:36 +03:00
Kernel: Make i386 thread tramplines crash 2024-03-26 00:07:24 +02:00			`# void thread_userspace_trampoline(uint32_t sp, uint32_t ip, int argc, char argv, char envp)`
			`.global thread_userspace_trampoline`
			`thread_userspace_trampoline:`
			`ud2`