tree 4e1479bc3f6ab99a539334a59b8bf1814a585aed
parent e6915e0e08a2a6b96f882e4b5e7fbdaa9496a43f
author Andrew Hsieh <andrewhsieh@google.com> 1363650598 -0700
committer Andrew Hsieh <andrewhsieh@google.com> 1363668939 -0700

Use linker -Wl,--wrap=symbol

Linker --wrap option resolves to __wrap_symbol for undefined symbol.
During the compilation of host libportable.a, __HOST__ is defined
to rename all portable functions to  __wrap_symbol, and the
real function to __real_symbol.  This way libportable.a can be
validated at host w/o changes of user's source code.

See http://sourceware.org/binutils/docs/ld/Options.html

Change-Id: Idcbe53dd642536f3dc2be85a875f95535b9dc0b1