58 commits

Author	SHA1	Message	Date
Tom	fb41d89384	Kernel: Implement software context switching and Processor structure ... Moving certain globals into a new Processor structure for each CPU allows us to eventually run an instance of the scheduler on each CPU.	2020-07-01 12:07:01 +02:00
Tom	3ac6d31b45	Kernel: Serialize debug output	2020-07-01 12:07:01 +02:00
Andreas Kling	84b7bc5e14	Kernel: Add convenient ways to map whole BIOS and EBDA into memory ... This patch adds a MappedROM abstraction to the Kernel VM subsystem. It's basically the read-only byte buffer equivalent of a TypedMapping. We use this in the ACPI and MP table parsers to scan for interesting stuff in low memory instead of doing a bunch of address arithmetic.	2020-05-22 13:17:38 +02:00
Itamar	6b74d38aab	Kernel: Add 'ptrace' syscall ... This commit adds a basic implementation of the ptrace syscall, which allows one process (the tracer) to control another process (the tracee). While a process is being traced, it is stopped whenever a signal is received (other than SIGCONT). The tracer can start tracing another thread with PT_ATTACH, which causes the tracee to stop. From there, the tracer can use PT_CONTINUE to continue the execution of the tracee, or use other request codes (which haven't been implemented yet) to modify the state of the tracee. Additional request codes are PT_SYSCALL, which causes the tracee to continue exection but stop at the next entry or exit from a syscall, and PT_GETREGS which fethces the last saved register set of the tracee (can be used to inspect syscall arguments and return value). A special request code is PT_TRACE_ME, which is issued by the tracee and causes it to stop when it calls execve and wait for the tracer to attach.	2020-03-28 18:27:18 +01:00
Andreas Kling	07a26aece3	Kernel: Rename InodeVMObject => SharedInodeVMObject	2020-02-28 20:07:51 +01:00
Andreas Kling	635ae70b8f	Kernel: More header dependency reduction work	2020-02-16 02:15:33 +01:00
Andreas Kling	16818322c5	Kernel: Reduce header dependencies of Process and Thread	2020-02-16 02:01:42 +01:00
Andreas Kling	e28809a996	Kernel: Add forward declaration header	2020-02-16 01:50:32 +01:00