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c631ec5ef5
First attempt at a UART driver. I'm not sure it's the most stable. Now that userspace is handling displaying logs, also removed serial and log output support from the kernel.
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
#include <j6/errors.h>
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#include <j6/types.h>
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#include "logger.h"
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#include "objects/process.h"
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#include "syscalls/helpers.h"
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namespace syscalls {
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j6_status_t
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process_create(j6_handle_t *handle)
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{
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process *child = construct_handle<process>(handle);
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log::debug(logs::task, "Process %llx created", child->koid());
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return j6_status_ok;
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}
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j6_status_t
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process_start(j6_handle_t handle, uintptr_t entrypoint, j6_handle_t * handles, size_t handles_count)
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{
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process &p = process::current();
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process *c = get_handle<process>(handle);
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if (handles_count && !handles)
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return j6_err_invalid_arg;
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for (size_t i = 0; i < handles_count; ++i) {
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kobject *o = p.lookup_handle(handles[i]);
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if (o) c->add_handle(o);
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}
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return j6_err_nyi;
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}
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j6_status_t
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process_kill(j6_handle_t handle)
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{
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process &p = process::current();
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process *c = get_handle<process>(handle);
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if (!c) return j6_err_invalid_arg;
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log::debug(logs::task, "Process %llx killed by process %llx", c->koid(), p.koid());
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c->exit(-1u);
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return j6_status_ok;
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}
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j6_status_t
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process_exit(int32_t status)
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{
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process &p = process::current();
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log::debug(logs::task, "Process %llx exiting with code %d", p.koid(), status);
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p.exit(status);
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log::error(logs::task, "returned to exit syscall");
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return j6_err_unexpected;
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}
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j6_status_t
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process_give_handle(j6_handle_t handle, j6_handle_t sender, j6_handle_t *receiver)
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{
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process *dest = get_handle<process>(handle);
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if (!dest) return j6_err_invalid_arg;
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kobject *o = get_handle<kobject>(sender);
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j6_handle_t out = dest->add_handle(o);
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if (receiver)
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*receiver = out;
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return j6_status_ok;
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}
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} // namespace syscalls
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