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authorMatt Fleming <matt.fleming@intel.com>2012-12-04 21:17:47 +0000
committerMatt Fleming <matt.fleming@intel.com>2012-12-05 22:41:32 +0000
commite4b3ce2dd82ce2da85c37fd3f332ec2eb802b734 (patch)
tree8b98440a37716dab0bd4de8b87a3800e5a40b07b /com32/elflink/ldlinux/config.h
parenta79ceb45909434d392aacbb92eb2dfa738479783 (diff)
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Symbol export whitelist
Before modules were dynamically loaded the boundary between GPL and non-GPL code was implicit because of the separate link domains for each module. With dynamic modules we need an explicit whitelist of core symbols that non-GPL code can link against at runtime without needing to be re-licensed under the GPL. Mark such symbols with __export, so that it is explicitly clear which symbols in the core can be linked against by non-GPL code. Reduce the visibility of symbols in both the core and ldlinux.c32 with -fvisibility=hidden. __export changes the visibility to 'default'. Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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