I realized because my linker script is incorrect, the section was not aligned
correctly, and this is why when I fed it to sbsigntool it has the
warning: gap in section table:
.dynsym : 0x000e4a00 - 0x000f1600,
/14 : 0x000f1752 - 0x000f1f52,
gaps in the section table may result in different checksums
Output from objdump with wrong linker script (note the last section):
Sections:
Idx Name Size VMA LMA File off Algn
0 .eh_frame 00013ab0 0000000000005000 0000000000005000 00000400 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
1 .text 000872f9 0000000000019000 0000000000019000 00014000 2**4
CONTENTS, ALLOC, LOAD, READONLY, CODE
2 .reloc 0000000a 00000000000a1000 00000000000a1000 0009b400 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
3 .data 000240f8 00000000000a2000 00000000000a2000 0009b600 2**5
CONTENTS, ALLOC, LOAD, DATA
4 .dynamic 000000f0 00000000000c7000 00000000000c7000 000bf800 2**3
CONTENTS, ALLOC, LOAD, DATA
5 .rela 00024ed0 00000000000c8000 00000000000c8000 000bfa00 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
6 .dynsym 0000cbe8 00000000000ed000 00000000000ed000 000e4a00 2**3
CONTENTS, ALLOC, LOAD, READONLY, DATA
7 .vendor_cert 00000611 0000000000103352 0000000000103352 000f1752 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
With updated linker script, I only get this line now:
warning: data remaining[990720 vs 1092659]: gaps between PE/COFF sections?
However the shim binary is still not bootable.
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https://bugs.launchpad.net/bugs/1575971
Title:
sbsign - gaps in the section table may result in different checksums
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