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History log of /src/tests/usr.bin/xlint/lint1/gcc_attribute.c
RevisionDateAuthorComments
 1.13  28-Mar-2023  rillig lint: warn about extern declarations outside headers

https://mail-index.netbsd.org/tech-userlevel/2023/03/15/msg013727.html
 1.12  25-Aug-2022  rillig 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@.
 1.11  17-Jun-2022  rillig tests/lint: make 'expect+-' comments stricter

Previously, the expectations from these comments were already satisfied
if the expectation occurred somewhere in the actual message from lint.
This meant that the prefix 'error:' or 'warning:' could be omitted from
the 'expect' comment. These omissions were hard to see in a manual
review. Now any omissions must be visually marked with '...'.

The test msg_342 now reports its messages properly as being in the file
msg_342.c, rather than msg_341.c. This had been a copy-and-paste
mistake.
 1.10  15-Jul-2021  rillig tests/lint: cover more edge cases in the parser
 1.9  09-Jul-2021  rillig tests/lint: ensure that GCC __attribute__ can be parsed
 1.8  06-Jul-2021  rillig tests/lint: add test for empty __attribute__(())
 1.7  06-Jul-2021  rillig 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.
 1.6  06-Jul-2021  rillig tests/lint: document wrong handling of GCC __attribute__
 1.5  03-May-2021  rillig lint: allow variables to be named 'pcs'
 1.4  03-May-2021  rillig tests/lint: demonstrate bug in the lexer for GCC attributes
 1.3  01-May-2021  rillig tests/lint: add test for __attribute__((nonnull()))
 1.2  01-May-2021  rillig lint: support all documented variants of __attribute__((nonnull))
 1.1  30-Apr-2021  rillig tests/lint: add very basic tests for GCC __attribute__

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