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DebugInfo: Add the ability to disable DWARF name tables entirely

Authored by dblaikie on Aug 20 2018, 1:14 PM.

Description

DebugInfo: Add the ability to disable DWARF name tables entirely

This changes the current default behavior (from emitting pubnames by
default, to not emitting them by default) & moves to matching GCC's
behavior* with one significant difference: -gno(-gnu)-pubnames disables
pubnames even in the presence of -gsplit-dwarf (though -gsplit-dwarf
still by default enables -ggnu-pubnames). This allows users to disable
pubnames (& the new DWARF5 accelerated access tables) when they might
not be worth the size overhead.

  • GCC's behavior is that -ggnu-pubnames and -gpubnames override each

other, and that -gno-gnu-pubnames and -gno-pubnames act as synonyms and
disable either kind of pubnames if they come last. (eg: -gpubnames
-gno-gnu-pubnames causes no pubnames (neither gnu or standard) to be
emitted)

llvm-svn: 340206

Details

Committed
dblaikieAug 20 2018, 1:14 PM
Parents
rGa25e2069739b: Add missing include (<functional> for std::ref)
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