https://sourceware.org/bugzilla/show_bug.cgi?id=26218
Bug ID: 26218
Summary: Invalid coff/pe arm machine type creating EFI binary
Product: binutils
Version: 2.32
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: kallisti5 at unixzen dot com
Target Milestone: ---
objcopy creates invalid ARM EFI bootloaders.
objcopy -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j
.reloc -j .dynstr -j .debug* --output-target=pei-arm-little --subsystem=efi-app
$(2) $(1)
Offset to PE: 0x80
Machine type: 0x0a00, Unknown machine type
PointerToSymbolTable should be 0.
NumberOfSymbols should be 0.
Characteristics: 0x0105
* Relocation information was stripped from the file.
* COFF line numbers were stripped from the file.
* The computer supports 32-bit words.
Wrong OHS Magic 0x742e
Image type: (crash in EFI analyzer tool)
This invalid machine type seems to come from here:
http://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=include/coff/arm.h;h=93ce49c1d05114b7d4b1cdb588fd8a1f4f0e68e;hb=HEAD#l78
(include/coff/arm.h line 78)
78 #define ARMMAGIC 0xa00 /* I just made this up */
ARMMAGIC gets references multiple places, with sketchy WINCE ifdef's
surrounding ARMPEMAGIC (which is "more sane")
http://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=bfd/coffcode.h;h=0910f918d13bf46394e3d3f3da4055fd2aa7a79;hb=HEAD#l2754
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