Advance: osbook_day02a

LoaderPkg/Loader.inf

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+[Defines]
+  INF_VERSION                    = 0x00010006
+  BASE_NAME                      = Loader
+  FILE_GUID                      = c9d0d202-71e9-11e8-9e52-cfbfd0063fbf
+  MODULE_TYPE                    = UEFI_APPLICATION
+  VERSION_STRING                 = 0.1
+  ENTRY_POINT                    = UefiMain
+
+#  VALID_ARCHITECTURES           = X64
+
+[Sources]
+  Main.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+
+[LibraryClasses]
+  UefiLib
+  UefiApplicationEntryPoint
+
+[Guids]
+
+[Protocols]

LoaderPkg/LoaderPkg.dec

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+[Defines]
+  DEC_SPECIFICATION              = 0x00010005
+  PACKAGE_NAME                   = LoaderPkg
+  PACKAGE_GUID                   = 452eae8e-71e9-11e8-a243-df3f1ffdebe1
+  PACKAGE_VERSION                = 0.1

LoaderPkg/LoaderPkg.dsc

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+#@range_begin(defines)
+[Defines]
+  PLATFORM_NAME                  = LoaderPkg
+  PLATFORM_GUID                  = d3f11f4e-71e9-11e8-a7e1-33fd4f7d5a3e
+  PLATFORM_VERSION               = 0.1
+  DSC_SPECIFICATION              = 0x00010005
+  OUTPUT_DIRECTORY               = Build/Loader$(ARCH)
+  SUPPORTED_ARCHITECTURES        = X64
+  BUILD_TARGETS                  = DEBUG|RELEASE|NOOPT
+#@range_end(defines)
+
+#@range_begin(library_classes)
+[LibraryClasses]
+  UefiApplicationEntryPoint|MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf
+  UefiLib|MdePkg/Library/UefiLib/UefiLib.inf
+#@range_end(library_classes)
+
+  BaseLib|MdePkg/Library/BaseLib/BaseLib.inf
+  BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
+  DebugLib|MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull.inf
+  DevicePathLib|MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.inf
+  MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
+  PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
+  PrintLib|MdePkg/Library/BasePrintLib/BasePrintLib.inf
+  UefiBootServicesTableLib|MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf
+  UefiRuntimeServicesTableLib|MdePkg/Library/UefiRuntimeServicesTableLib/UefiRuntimeServicesTableLib.inf
+
+#@range_begin(components)
+[Components]
+  firmament/LoaderPkg/Loader.inf
+#@range_end(components)

LoaderPkg/Main.c

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+#include  <Uefi.h>
+#include  <Library/UefiLib.h>
+
+EFI_STATUS EFIAPI UefiMain(
+    EFI_HANDLE image_handle,
+    EFI_SYSTEM_TABLE *system_table) {
+  Print(L"Welcome to Firmament.\n");
+  while (1);
+  return EFI_SUCCESS;
+}