mirror of
https://github.com/limine-bootloader/limine
synced 2024-12-04 22:22:24 +03:00
128 lines
3.2 KiB
C
128 lines
3.2 KiB
C
#include <lib/term.h>
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#include <lib/real.h>
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#include <lib/blib.h>
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#include <lib/libc.h>
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#include <lib/part.h>
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#include <lib/config.h>
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#include <lib/trace.h>
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#include <sys/e820.h>
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#include <sys/a20.h>
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#include <lib/print.h>
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#include <fs/file.h>
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#include <lib/elf.h>
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#include <mm/pmm.h>
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#include <protos/stivale.h>
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#include <protos/stivale2.h>
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#include <protos/linux.h>
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#include <protos/chainload.h>
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#include <menu.h>
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#include <pxe/pxe.h>
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#include <pxe/tftp.h>
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#include <drivers/disk.h>
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void stage3_common(void);
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#if defined (uefi)
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__attribute__((naked))
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EFI_STATUS efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
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// Invalid return address of 0 to end stacktraces here
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asm (
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"push 0\n\t"
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"push 0\n\t"
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"xor eax, eax\n\t"
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"jmp uefi_entry\n\t"
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);
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(void)ImageHandle; (void)SystemTable;
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}
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__attribute__((noreturn))
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void uefi_entry(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
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gST = SystemTable;
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gBS = SystemTable->BootServices;
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gRT = SystemTable->RuntimeServices;
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efi_image_handle = ImageHandle;
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EFI_STATUS status;
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init_memmap();
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term_vbe(0, 0);
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early_term = true;
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print("Limine " LIMINE_VERSION "\n\n");
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disk_create_index();
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EFI_HANDLE current_handle = ImageHandle;
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for (;;) {
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EFI_GUID loaded_img_prot_guid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
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EFI_LOADED_IMAGE_PROTOCOL *loaded_image = NULL;
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status = uefi_call_wrapper(gBS->HandleProtocol, 3,
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current_handle, &loaded_img_prot_guid,
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&loaded_image);
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if (status) {
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panic("HandleProtocol failure (%x)", status);
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}
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boot_volume = disk_volume_from_efi_handle(loaded_image->DeviceHandle);
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if (boot_volume != NULL)
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stage3_common();
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current_handle = loaded_image->ParentHandle;
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}
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}
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#endif
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#if defined (bios)
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__attribute__((section(".stage3_build_id")))
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uint64_t stage3_build_id = BUILD_ID;
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__attribute__((section(".stage3_entry")))
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#endif
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__attribute__((noreturn))
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void stage3_common(void) {
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volume_iterate_parts(boot_volume,
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if (!init_config_disk(_PART)) {
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boot_volume = _PART;
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break;
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}
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);
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char *verbose_str = config_get_value(NULL, 0, "VERBOSE");
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verbose = verbose_str != NULL && strcmp(verbose_str, "yes") == 0;
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if (verbose) {
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print("Boot drive: %x\n", boot_volume->drive);
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print("Boot partition: %d\n", boot_volume->partition);
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}
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char *cmdline;
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char *config = menu(&cmdline);
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char *proto = config_get_value(config, 0, "PROTOCOL");
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if (proto == NULL) {
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panic("PROTOCOL not specified");
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}
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if (!strcmp(proto, "stivale")) {
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stivale_load(config, cmdline);
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} else if (!strcmp(proto, "stivale2")) {
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#if defined (bios)
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void *efi_system_table = NULL;
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#elif defined (uefi)
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void *efi_system_table = gST;
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#endif
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stivale2_load(config, cmdline, boot_volume->pxe, efi_system_table);
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} else if (!strcmp(proto, "linux")) {
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linux_load(config, cmdline);
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} else if (!strcmp(proto, "chainload")) {
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chainload(config);
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}
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panic("Invalid protocol specified");
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}
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