Branch: refs/heads/master
Home: https://github.com/tianocore/edk2
Commit: 27ac8fac0b61e6b464369cc1cadc66a7b83336c4
https://github.com/tianocore/edk2/commit/27ac8fac0b61e6b464369cc1cadc66a7b83336c4
Author: Chris Fernald <[email protected]>
Date: 2026-07-22 (Wed, 22 Jul 2026)
Changed paths:
M BaseTools/Source/C/GenFw/Elf64Convert.c
M BaseTools/Source/C/GenFw/ElfConvert.c
M BaseTools/Source/C/GenFw/ElfConvert.h
M BaseTools/Source/C/GenFw/GenFw.c
Log Message:
-----------
BaseTools: Add support for preserving build ID
Adds an optional flag that copies the GNU build-id note from the input
ELF file into the output PE/COFF firmware image as a dedicated ".bldid"
section. The build ID is emitted by the linker as a unique fingerprint
of the binary and allows custom post-build and debugging tools to
reliably match a firmware image against its corresponding unstripped
ELF and debug symbols, without relying on file names, timestamps, or
build paths.
This notable opts to use a non-standard section name ".bldid" to store
the build ID. This approach was chosen to keep genfw and the parsers simple
since the full "build-id" name would require redirecting the section name.
While this breaks from standard conventions, this is not impactful since
GenFW is already creating a non-standard artifact for the PE image with
the associated ELF symbol file.
Signed-off-by: Chris Fernald <[email protected]>
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