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efi_loader: Generate Microsoft PE format compliant images

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Per Microsoft PE Format documentation [1], PointerToSymbolTable and
NumberOfSymbols should be zero for an image in the COFF file header.
Currently U-Boot is generating *.efi images (eg: helloworld.efi) in
which these two members are not zero.

This updates the build rules to tell linker to remove the symbol
table completely so that we can generate compliant *.efi images.

[1] https://docs.microsoft.com/zh-cn/windows/desktop/Debug/pe-format

Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Bin Meng 2018-10-02 07:39:29 -07:00 committed by Alexander Graf
parent e2373021f6
commit f7855bb7db
1 changed files with 1 additions and 1 deletions
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2
scripts/Makefile.lib
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@ -381,7 +381,7 @@ $(obj)/%.efi: $(obj)/%_efi.so
quiet_cmd_efi_ld = LD $@
cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
-Bsymbolic $^ -o $@
-Bsymbolic -s $^ -o $@
EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)