https://sourceware.org/bugzilla/show_bug.cgi?id=21680
Bug ID: 21680
Summary: unable to sign .efi image generated by objcopy
Product: binutils
Version: 2.28
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: sharath.kurudi at gmail dot com
Target Milestone: ---
Created attachment 10224
--> https://sourceware.org/bugzilla/attachment.cgi?id=10224&action=edit
Makefile to generate efi image using objcopy
I created a .efi image using the Makefile script attached. I tried to sign the
image using sbsign tool with keys generated from openssl tool
"openssl req -newkey rsa:2048 -nodes -keyout db.key -new -x509 -sha256 -days
3650 -subj "" -out db.crt"
sbsign command
sbsign --key db.key --cert db.crt --output hello_signed.efi hello.efi.
I get the following error
warning: data remaining[115200 vs 125743]: gaps between PE/COFF sections?
hello.efi does not get executed in a secure boot mode.
objcopy command
================
objcopy -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j
.reloc --target=efi-app-x86_64 hello.so hello.efi
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