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8b29680850
Load drv.uart.elf and srv.logger.elf from the initrd and start them. It's extremely manual and hard-coded at the moment, but it works and they run, getting us back to where we were pre-initrd branch.
137 lines
3.2 KiB
C++
137 lines
3.2 KiB
C++
#include <stdio.h>
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#include <stdlib.h>
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#include <vector>
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#include <j6/cap_flags.h>
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#include <j6/errors.h>
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#include <j6/init.h>
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#include <j6/syscalls.h>
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#include <j6/types.h>
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#include <bootproto/init.h>
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#include "j6romfs.h"
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#include "loader.h"
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#include "modules.h"
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#include "service_locator.h"
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using bootproto::module;
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using bootproto::module_type;
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extern "C" {
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int main(int, const char **);
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}
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uintptr_t _arg_modules_phys; // This gets filled in in _start
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extern j6_handle_t __handle_self;
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util::const_buffer
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load_driver_for(const char *name, const j6romfs::fs &initrd)
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{
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char driver[256];
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snprintf(driver, sizeof(driver), "/jsix/drivers/drv.%s.elf", name);
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return initrd.load_simple(driver);
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}
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util::const_buffer
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load_service(const char *name, const j6romfs::fs &initrd)
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{
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char service[256];
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snprintf(service, sizeof(service), "/jsix/services/srv.%s.elf", name);
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return initrd.load_simple(service);
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}
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int
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main(int argc, const char **argv)
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{
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j6_status_t s;
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j6_handle_t slp_mb = j6_handle_invalid;
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j6_handle_t slp_mb_child = j6_handle_invalid;
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j6_handle_t sys = j6_handle_invalid;
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j6_handle_t sys_child = j6_handle_invalid;
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j6_log("srv.init starting");
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sys = j6_find_first_handle(j6_object_type_system);
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if (sys == j6_handle_invalid)
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return 1;
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s = j6_handle_clone(sys, &sys_child,
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j6_cap_system_bind_irq |
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j6_cap_system_get_log |
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j6_cap_system_map_phys |
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j6_cap_system_change_iopl);
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if (s != j6_status_ok)
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return s;
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s = j6_mailbox_create(&slp_mb);
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if (s != j6_status_ok)
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return s;
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s = j6_handle_clone(slp_mb, &slp_mb_child,
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j6_cap_mailbox_send |
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j6_cap_object_clone);
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if (s != j6_status_ok)
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return s;
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modules mods = modules::load_modules(_arg_modules_phys, sys, __handle_self);
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module const *initrd_module;
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std::vector<module const*> devices;
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for (auto &mod : mods) {
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switch (mod.type) {
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case module_type::initrd:
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initrd_module = &mod;
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break;
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case module_type::device:
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devices.push_back(&mod);
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break;
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default:
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// Unknown module??
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break;
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}
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}
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if (!initrd_module)
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return 1;
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j6_handle_t initrd_vma =
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map_phys(sys, initrd_module->data.pointer, initrd_module->data.count);
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if (initrd_vma == j6_handle_invalid) {
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j6_log(" ** error loading ramdisk: mapping physical vma");
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return 1;
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}
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// TODO: encapsulate this all in a driver_manager, or maybe
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// have driver_source objects..
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j6romfs::fs initrd {initrd_module->data};
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char err_msg [128];
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util::const_buffer uart_elf = load_driver_for("uart", initrd);
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if (uart_elf.pointer) {
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if (!load_program("UART driver", uart_elf, sys_child, slp_mb_child, err_msg)) {
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j6_log(err_msg);
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return 1;
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}
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}
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util::const_buffer logger_elf = load_service("logger", initrd);
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if (uart_elf.pointer) {
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if (!load_program("logger service", logger_elf, sys_child, slp_mb_child, err_msg)) {
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j6_log(err_msg);
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return 1;
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}
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}
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service_locator_start(slp_mb);
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return 0;
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}
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