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[efi] Eliminate use of libbfd

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Parse the intermediate ELF file directly instead of using libbfd, in
order to allow for cross-compiled ELF objects.

As a side bonus, this eliminates libbfd as a build requirement.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2016-05-02 20:36:54 +01:00
parent 71560d1854
commit efd5cf9aad
3 changed files with 301 additions and 180 deletions
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10
src/Makefile.housekeeping
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@@ -1303,20 +1303,18 @@ CLEANUP += $(ZBIN)
#
# The EFI image converter
#
ELF2EFI_CFLAGS := -I$(BINUTILS_DIR)/include -I$(BFD_DIR)/include \
-I$(ZLIB_DIR)/include -idirafter include
ELF2EFI_LDFLAGS := -L$(BINUTILS_DIR)/lib -L$(BFD_DIR)/lib -L$(ZLIB_DIR)/lib \
-lbfd -ldl -lz -Wl,--no-warn-search-mismatch
ELF2EFI_CFLAGS := -I$(ZLIB_DIR)/include -idirafter include
ELF2EFI_LDFLAGS := -L$(ZLIB_DIR)/lib -lz -Wl,--no-warn-search-mismatch
$(ELF2EFI32) : util/elf2efi.c $(MAKEDEPS)
$(QM)$(ECHO) " [HOSTCC] $@"
$(Q)$(HOST_CC) $(HOST_CFLAGS) $(ELF2EFI_CFLAGS) -DEFI_TARGET_IA32 $< \
$(Q)$(HOST_CC) $(HOST_CFLAGS) $(ELF2EFI_CFLAGS) -DEFI_TARGET32 $< \
$(ELF2EFI_LDFLAGS) -o $@
CLEANUP += $(ELF2EFI32)
$(ELF2EFI64) : util/elf2efi.c $(MAKEDEPS)
$(QM)$(ECHO) " [HOSTCC] $@"
$(Q)$(HOST_CC) $(HOST_CFLAGS) $(ELF2EFI_CFLAGS) -DEFI_TARGET_X64 $< \
$(Q)$(HOST_CC) $(HOST_CFLAGS) $(ELF2EFI_CFLAGS) -DEFI_TARGET64 $< \
$(ELF2EFI_LDFLAGS) -o $@
CLEANUP += $(ELF2EFI64)