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Support for building with the Intel C compiler (icc) was added in 2009
in the expectation that UEFI support would eventually involve
compiling iPXE to EFI Byte Code.
EFI Byte Code has never found any widespread use: no widely available
compilers can emit it, Microsoft refuses to sign EFI Byte Code
binaries for UEFI Secure Boot, and I have personally never encountered
any examples of EFI Byte Code in the wild.
The support for using the Intel C compiler has not been tested in over
a decade, and would almost certainly require modification to work with
current releases of the compiler.
Simplify the build process by removing this old legacy code.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Add utility for constructing EFI fat binaries (dual 32/64-bit
binaries, usable only on Apple EFI systems).
This utility is not part of the standard build process. To use it:
make util/efifatbin bin-i386-efi/ipxe.efi bin-x86_64-efi/ipxe.efi
and then
./util/efifatbin bin-*-efi/ipxe.efi fat-ipxe.efi
Requested-by: Brandon Penglase <bpenglase-ipxe@spaceservices.net>
Tested-by: Brandon Penglase <bpenglase-ipxe@spaceservices.net>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Add preprocessor magic to the error definitions to enable every error
usage to be tracked.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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elf2efi converts a suitable ELF executable (containing relocation
information, and with appropriate virtual addresses) into an EFI
executable. It is less tightly coupled with the gPXE build process
and, in particular, does not require the use of a hand-crafted PE
image header in efiprefix.S.
elf2efi correctly handles .bss sections, which significantly reduces
the size of the gPXE EFI executable.
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We have EFI APIs for CPU I/O, PCI I/O, timers, console I/O, user
access and user memory allocation.
EFI executables are created using the vanilla GNU toolchain, with the
EXE header handcrafted in assembly and relocations generated by a
custom efilink utility.
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