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berkus / mclinker

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Support --build-id option #113

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
-build-id
--build-id=style
Request creation of ".note.gnu.build-id" ELF note section.  The contents of the 
note are unique bits identifying this linked file.  style can be "uuid" to use 
128 random bits, "sha1" to use a 160-bit SHA1 hash on the normative parts of 
the output contents, "md5" to use a 128-bit MD5 hash on the normative parts of 
the output contents, or "0xhexstring" to use a chosen bit string specified as 
an even number of hexadecimal digits ("-" and ":" characters between digit 
pairs are ignored).  If style is omitted, "sha1" is used.

The "md5" and "sha1" styles produces an identifier that is always the same in 
an identical output file, but will be unique among all nonidentical output 
files.  It is not intended to be compared as a checksum for the file's 
contents.  A linked file may be changed later by other tools, but the build ID 
bit string identifying the original linked file does not change.

Passing "none" for style disables the setting from any "--build-id" options 
earlier on the command line.

Original issue reported on code.google.com by LubaTang on 7 Jan 2013 at 6:35

GoogleCodeExporter commented 9 years ago

Original comment by pete.c...@gmail.com on 2 Apr 2014 at 8:39