patrick/Sylva
1
1
Fork 0
Code Issues 2 Pull Requests Actions Packages Projects 1 Releases Wiki Activity

[feat] Simple output

Browse Source
This commit is contained in:
pyao12
2026-05-09 21:08:24 +08:00
Unverified
parent 37fafd9431
commit 2de84db476
1 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
boot.c
+12 -4
View File
@@ -1,9 +1,17 @@
#include <efi.h> #include <efi.h>
#include <efilib.h> #include <efilib.h>
EFI_STATUS EFIAPI efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) { EFI_STATUS EFIAPI efi_main (EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *ST) {
InitializeLib(ImageHandle, SystemTable); InitializeLib(ImageHandle, ST);
Print(L"Hello, world!\n");
while (1); // 不能直接ST->ConOut之类的，会GP，不知道为什么
// uefi_call_wrapper可以解决，而且比较安全（不过就是宏）
// 看着挺长，反正就在boot这里用到UEFI Out，后面不用，也就算了
uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut);
uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, 1);
uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"Welcome to SYLVA OS!\n");
uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, 2);
uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"* The system has booted successfully.\n");
while (1); // 否则会直接跳到QEMU Setup
return EFI_SUCCESS; return EFI_SUCCESS;
} }