boot/efi: add stubs for x86

Change-Id: I8d3dfa7cc07679a8b024df24f7cddb3a5bcec02c
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4747
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Jérôme Duval <[email protected]>

src/system/boot/platform/efi/arch/x86/Jamfile

@@ -0,0 +1,31 @@
+SubDir HAIKU_TOP src system boot platform efi arch x86 ;
+
+SubDirHdrs $(HAIKU_TOP) src system boot platform efi ;
+
+UsePrivateHeaders [ FDirName kernel platform ] ;
+UsePrivateHeaders [ FDirName kernel boot platform efi ] ;
+
+local platform ;
+for platform in [ MultiBootSubDirSetup efi ] {
+	on $(platform) {
+		{
+			local defines = _BOOT_MODE _BOOT_PLATFORM_EFI ;
+			defines = [ FDefines $(defines) ] ;
+			SubDirCcFlags $(defines) ;
+			SubDirC++Flags $(defines) -fno-rtti ;
+		}
+
+		local arch_src =
+			crt0-efi-$(TARGET_ARCH).S
+			relocation_func.cpp
+			arch_mmu.cpp
+			arch_smp.cpp
+			arch_start.cpp
+			arch_timer.cpp
+			;
+
+		BootMergeObject boot_platform_efi_x86.o :
+			$(arch_src)
+			;
+	}
+}

src/system/boot/platform/efi/arch/x86/arch_mmu.cpp

@@ -0,0 +1,11 @@
+/*
+ * Copyright 2021 Haiku, Inc. All rights reserved.
+ * Released under the terms of the MIT License.
+ */
+
+
+void
+arch_mmu_init(void)
+{
+
+}

src/system/boot/platform/efi/arch/x86/arch_smp.cpp

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2021 Haiku, Inc. All rights reserved.
+ * Released under the terms of the MIT License.
+ */
+
+
+#include "arch_smp.h"
+
+
+int
+arch_smp_get_current_cpu(void)
+{
+	return 0;
+}
+
+
+void
+arch_smp_init_other_cpus(void)
+{
+}
+
+
+void
+arch_smp_boot_other_cpus(uint32 pml4, uint64 kernel_entry)
+{
+}
+
+
+void
+arch_smp_add_safemode_menus(Menu *menu)
+{
+}
+
+
+void
+arch_smp_init(void)
+{
+}

src/system/boot/platform/efi/arch/x86/arch_start.cpp

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2021 Haiku, Inc. All rights reserved.
+ * Released under the terms of the MIT License.
+ */
+
+
+#include <boot/platform.h>
+#include <boot/stage2.h>
+
+#include "mmu.h"
+
+
+void
+arch_convert_kernel_args(void)
+{
+	fix_address(gKernelArgs.ucode_data);
+	fix_address(gKernelArgs.arch_args.apic);
+	fix_address(gKernelArgs.arch_args.hpet);
+}
+
+
+void
+arch_start_kernel(addr_t kernelEntry)
+{
+}

src/system/boot/platform/efi/arch/x86/arch_timer.cpp

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2021 Haiku, Inc. All rights reserved.
+ * Released under the terms of the MIT License.
+ */
+
+
+#include "arch_timer.h"
+
+
+void
+arch_timer_init(void)
+{
+}

src/system/boot/platform/efi/arch/x86/relocation_func.cpp

@@ -0,0 +1,101 @@
+/* reloc_ia32.c - position independent x86 ELF shared object relocator
+   Copyright (C) 1999 Hewlett-Packard Co.
+        Contributed by David Mosberger <[email protected]>.
+
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials
+      provided with the distribution.
+    * Neither the name of Hewlett-Packard Co. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+    CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+    BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+    THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+*/
+
+#include <efi/types.h>
+#include <efi/system-table.h>
+
+#include <elf.h>
+
+
+extern "C" efi_status _relocate (long ldbase, Elf32_Dyn *dyn,
+	efi_handle image __attribute__((__unused__)),
+	efi_system_table *systab __attribute__((__unused__)))
+{
+	long relsz = 0, relent = 0;
+	Elf32_Rel *rel = 0;
+	unsigned long *addr;
+	int i;
+
+	for (i = 0; dyn[i].d_tag != DT_NULL; ++i) {
+		switch (dyn[i].d_tag) {
+			case DT_REL:
+				rel = (Elf32_Rel*)
+					((unsigned long)dyn[i].d_un.d_ptr
+					 + ldbase);
+				break;
+
+			case DT_RELSZ:
+				relsz = dyn[i].d_un.d_val;
+				break;
+
+			case DT_RELENT:
+				relent = dyn[i].d_un.d_val;
+				break;
+
+			case DT_RELA:
+				break;
+
+			default:
+				break;
+		}
+	}
+
+	if (!rel && relent == 0)
+		return EFI_SUCCESS;
+
+	if (!rel || relent == 0)
+		return EFI_LOAD_ERROR;
+
+	while (relsz > 0) {
+		/* apply the relocs */
+		switch (ELF32_R_TYPE (rel->r_info)) {
+			case R_386_NONE:
+				break;
+
+			case R_386_RELATIVE:
+				addr = (unsigned long *)
+					(ldbase + rel->r_offset);
+				*addr += ldbase;
+				break;
+
+			default:
+				break;
+		}
+		rel = (Elf32_Rel*) ((char *) rel + relent);
+		relsz -= relent;
+	}
+
+	return EFI_SUCCESS;
+}