[Bug default/27552] libandroid.so missing symbol type information

["mark at klomp dot org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27552

Mark Wielaard <mark at klomp dot org> changed:

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                 CC|                            |mark at klomp dot org

--- Comment #2 from Mark Wielaard <mark at klomp dot org> ---
So this is ./tests/data/test-read-dwarf/test-libandroid.so
Which is a 32bit ARM binary.

Those are "special" :)

https://static.docs.arm.com/ihi0044/g/aaelf32.pdf

Section 5.5.3 Symbol Values

•  If the symbol addresses a Thumb instruction, its value is the address of the
instruction with bit zero set (in a relocatable object, the section offset with
bit zero set).

 This allows a linker to distinguish Arm and Thumb code symbols without having
to refer to the map.  An Arm symbol will always have an even value, while a
Thumb symbol will always have an odd value.

So it depends on when which tool strips off the zero-bit of the value.

It looks like AAssetDir_close is a Thumb function, so its address is 0000ce62,
but the value in the symbol table is 0000ce63.

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