build: Define _BOOT_MODE once and for all in ArchitectureRules+BootRules.

Previously it was spread all around the tree, and was not defined
consistently for all boot objects (there were a number of boot modules
which did not define it, but did include headers which checked for it.)

Now, as it is handled in SetupBoot which is invoked for all boot objects,
it will be applied consistently throughout. We can thus drop the manual
additions of it from all Jamfiles.

bootloader video_text_console: Refactor into the new ConsoleNode model.

Change-Id: I3dc59cbdfd28f1ada49b02e42d50ec2b52c40227
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4643
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

bootloader: Refactor console functions into the VFS ConsoleNode class.

This way it becomes much easier to write multiple console implementations
in one bootloader.

Tested for bios_ia32 and efi.

Change-Id: I67134f5c3de109b15d46898864ba7f51c6592afc
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4642
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

system/boot: Add support for multiple bootloaders

bootloader: build objects in $(TARGET_BOOT_PLATFORM)

This separates the objects required for the various boot
loaders, allowing the build system to be able to build
for different targets alongside each other. Currently
only done for bios_ia32 vs efi, as both loaders will be
needed for the x86_64 images.

Setup -fno-pic or -fpic in Architecture Rules.

EFI boot needs -fpic but all boot code was built with -fno-pic.
This is now set accordingly in HAIKU_BOOT_CCFLAGS and
HAIKU_BOOT_C++FLAGS.

Also setup compile flags for EFI platform.

Fix race condition during build of some file systems.

* make sure the zlib package is available before trying to use zlib.h

Complete outsourcing of zlib

* Add optional packages Zlib and Zlib-devel.
* Simplify the build feature section for zlib and also extract the
source package.
* Replace all remaining references to the zlib instance in the tree and
remove it.

Made it possible to build the bootloader when targetting x86_64.

* x86_64 is using the existing *_ia32 boot platforms.
* Special flags are required when compiling the loader to get GCC to compile
32-bit code. This adds a new set of rules for compiling boot code rather
than using the kernel rules, which compile using the necessary flags.
* Some x86_64 private headers have been stubbed by #include'ing the x86
versions. These will be replaced later.

Moved generic boot platform code to its own static lib, boot_platform_generic.a.
I hope I didn't break anything, as I can and have only test
bios_ia32's haiku_loader. Flame me otherwise.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40240 a95241bf-73f2-0310-859d-f6bbb57e9c96

Fix race condition during build of some file systems.

* make sure the zlib package is available before trying to use zlib.h

Complete outsourcing of zlib

* Add optional packages Zlib and Zlib-devel.
* Simplify the build feature section for zlib and also extract the
source package.
* Replace all remaining references to the zlib instance in the tree and
remove it.

Made it possible to build the bootloader when targetting x86_64.

* x86_64 is using the existing *_ia32 boot platforms.
* Special flags are required when compiling the loader to get GCC to compile
32-bit code. This adds a new set of rules for compiling boot code rather
than using the kernel rules, which compile using the necessary flags.
* Some x86_64 private headers have been stubbed by #include'ing the x86
versions. These will be replaced later.

Moved generic boot platform code to its own static lib, boot_platform_generic.a.
I hope I didn't break anything, as I can and have only test
bios_ia32's haiku_loader. Flame me otherwise.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40240 a95241bf-73f2-0310-859d-f6bbb57e9c96