kernel/x86: fix build for 32-bit ELF loader on 64-bit arch

Change-Id: I7c9e8cb7a3d03d40167f7924c17e95f5ad646afe
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5695
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>

kernel/x86/elf: fix build with TRACE enabled

Change-Id: Ibed0d5e628500b0c5e2f999d95587490079519d3
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5671
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>

boot/loader: relocate kernel to virtual address space on 32-bit architectures

Change-Id: Ic86ca6874f358df8755a0c691cccb155d145e06c
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4675
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>

arch/x86: select between 32-bit and 64-bit ELF based on arch and platform

arch_elf is reused between the kernel and boot loader

No change for kernel mode compilation.

How to select 32-bit or 64-bit when building boot loader:
* build both when building BIOS loader
* build only 32-bit when building 32-bit EFI loader
* build only 64-bit when building 64-bit EFI loader

Change-Id: I9caa1248c7eb24318911a0c369137cedb638e4e4
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4817
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>

x86_64: R_X86_64_PC32 and R_X86_64_DTPOFF32 are 32-bit wide relocations.

Change-Id: I9c4e6c5ae77f4c17c2b6901f2b133db4b9dc48e3
Reviewed-on: https://review.haiku-os.org/445
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

kernel: support elf32 on x86_64.

* define ELF32_COMPAT to enable ELF32 macros.
* add a flag ELF_LOAD_USER_IMAGE_TEST_EXECUTABLE to only check the format.
It will be used by load_image_internal() to check which mode to use when
loading an image.
* in arch_elf_relocate_rel(), switch to elf_addr instead of addr_t, which
would be the wrong size for elf32 on x86_64.
* the ELF compat loader reuses the relevant parts of elf.cpp and arch_elf.cpp,
excluding for instance load_kernel_add_on() or dump functions.

Change-Id: Ifa47334e5adefd45405a823a3accbd12eee5b116

EFI: Initial test EFI application

* Only set HAIKU_BOOT_PLATFORM to bios_ia32 if not defined
* Add gnuefi build feature
* Introduce BOOT_LDFLAGS, and move options for passing to linker
into ArchitectureSetup
* x86_64 compile fixes for warnings in boot loader
* loader/elf.cpp: don't include ELF32 support when targeting EFI
* relocation_func.cpp: copy of the relocation code from gnuefi
to make _relocate extern "C", and avoid including <efilib.h>
* boot_loader_efi.ld: copy of gnuefi's elf_x86_64_efi.lds,
modified to include support for C++ constructors, etc. Keep in
sync with the gnuefi package

Signed-off-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>

system: Build using public elf.h header

Reduce duplication of code by

* Removing from elf_common.h definitions available in os/kernel/elf.h
* Deleting elf32.h and elf64.h
* Renaming elf_common.h to elf_private.h
* Updating source to build using public and private ELF header files
together

Signed-off-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>

Added missing validity check on relocation address.

Support ELF64 in the kernel.

This has been done by adding typedefs in elf_common.h to the correct ELF
structures for the architecture, and changing all Elf32_* uses to those
types. I don't know whether image loading works as I cannot test it yet,
there may be some 64-bit safety issues around. However, symbol lookup for
the kernel is working correctly.

Moved ELF64 relocation functions to x86 arch_elf.cpp.

Added x86_64 ELF64 relocation functions for the bootloader. All that's left to do now is handle the 64-bit load address properly.

Added an ELF64 version of preloaded_image.

* There is now 2 structures, preloaded_elf32_image and preloaded_elf64_image,
which both inherit from preloaded_image.
* For now I've just hardcoded in use of preloaded_elf32_image, but the
bootloader ELF code will shortly be converted to use templates which use
the appropriate structure. The kernel will be changed later when I add
ELF64 support to it.
* All kernel_args data is now compatible between 32-bit and 64-bit kernels.

*.c -> *.cpp


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34417 a95241bf-73f2-0310-859d-f6bbb57e9c96

Added missing validity check on relocation address.

Support ELF64 in the kernel.

This has been done by adding typedefs in elf_common.h to the correct ELF
structures for the architecture, and changing all Elf32_* uses to those
types. I don't know whether image loading works as I cannot test it yet,
there may be some 64-bit safety issues around. However, symbol lookup for
the kernel is working correctly.

Moved ELF64 relocation functions to x86 arch_elf.cpp.

Added x86_64 ELF64 relocation functions for the bootloader. All that's left to do now is handle the 64-bit load address properly.

Added an ELF64 version of preloaded_image.

* There is now 2 structures, preloaded_elf32_image and preloaded_elf64_image,
which both inherit from preloaded_image.
* For now I've just hardcoded in use of preloaded_elf32_image, but the
bootloader ELF code will shortly be converted to use templates which use
the appropriate structure. The kernel will be changed later when I add
ELF64 support to it.
* All kernel_args data is now compatible between 32-bit and 64-bit kernels.

*.c -> *.cpp


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34417 a95241bf-73f2-0310-859d-f6bbb57e9c96