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On May 16, 2007, at 9:39 AM, Fabian Groffen wrote: |
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|
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>> There's one thing I should mention that the file command of prefixed |
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>> cannot tell hello64 is an executable: |
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>> % $EPREFIX/usr/bin/file hello64 |
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>> hello64: data |
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> |
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> GNU coreutils apparently isn't able to identify this (yet). Not |
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> much we |
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> can do about this, unless you know how to patch it to support it. I'm |
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> not much into file formats/magic headers myself, so I have no clue. |
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|
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Actually, GNU file is not related to coreutils at all, it's a |
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separate tool.[1] |
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|
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Apple modified file heavily to make it work with universal binaries. |
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The (15!) patches are freely available[2], they're diffed against |
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4.10, though (a lot has changed since then, especially related to |
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universal binaries). See below for what the patches result in. |
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Although I don't have a 64bit binary I could test it on, I guess |
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Apple's file would recognize it. |
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|
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$ dirs |
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/Developer/SDKs/MacOSX10.4u.sdk/usr/lib |
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|
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$ ~/Gentoo/usr/bin/file libncurses.5.4.dylib |
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libncurses.5.4.dylib: Mach-O fat file with 4 architectures |
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|
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$ /usr/bin/file libncurses.5.4.dylib |
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libncurses.5.4.dylib: Mach-O universal binary with 4 architectures |
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libncurses.5.4.dylib (for architecture ppc): Mach-O dynamically |
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linked shared library stub ppc |
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libncurses.5.4.dylib (for architecture ppc64): Mach-O 64-bit |
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dynamically linked shared library stub ppc64 |
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libncurses.5.4.dylib (for architecture i386): Mach-O dynamically |
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linked shared library stub i386 |
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libncurses.5.4.dylib (for architecture x86_64): Mach-O 64-bit |
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dynamically linked shared library stub x86_64 |
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$ |
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|
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[1] ftp://ftp.astron.com/pub/file |
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[2] http://www.opensource.apple.com/darwinsource/10.4.9.x86/file-6.2/ |
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patches/ |
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-- |
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