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[efi] Compress EFI ROM images

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Use the reference implementation of the EFI compression algorithm
(taken from the EDK2 codebase, with minor bugfixes to allow
compilation with -Werror) to compress EFI ROM images.

Inspired-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2021-02-19 19:58:04 +00:00
parent 900f1f98d3
commit b76281a885
4 changed files with 1652 additions and 6 deletions
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2
src/Makefile.housekeeping
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@@ -1425,7 +1425,7 @@ $(ELF2EFI64) : util/elf2efi.c $(MAKEDEPS)
$(Q)$(HOST_CC) $(HOST_CFLAGS) -idirafter include -DEFI_TARGET64 $< -o $@
CLEANUP += $(ELF2EFI64)
$(EFIROM) : util/efirom.c $(MAKEDEPS)
$(EFIROM) : util/efirom.c util/eficompress.c $(MAKEDEPS)
$(QM)$(ECHO) " [HOSTCC] $@"
$(Q)$(HOST_CC) $(HOST_CFLAGS) -idirafter include -o $@ $<
CLEANUP += $(EFIROM)