CVS log for src/tests/usr.bin/xlint/lint1/gcc_attribute_type.c

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Default branch: MAIN

tests/lint: clean up

The .exp files are no longer kept under version control, so there's no
reason anymore to forcefully trigger a warning or an error.

lint: remove explicit list of known GCC attributes

Most GCC attributes consist of a single identifier.  Up to now, it was
necessary to list each of these identifiers in the grammar, even those
that only apply to a single target architecture.

Instead, parse the general form of attributes, matching the few
attributes that lint handles by name instead.  While here, rename the
grammar rules to use the GCC terms.

To avoid conflicts between the global function 'printf' and the GCC
attribute of the same name, do not add GCC attributes to the symbol
table, and don't make these symbols 'extern' either.

ok christos@.

lint: reorder grammar rules

First the base cases, then the extensions, like in most other rules in
this file.

No functional change.

tests/lint: add tests for GCC __attribute__

Before fixing the wrong handling of __attribute__ that is demonstrated
at the end of gcc_attribute.c, ensure that the attribute handling works
in the most basic cases.

Lint currently accepts __attribute__ in more places than it should.
This leads to some ambiguities in the grammar.