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CVS commit: src

Module Name:    src
Committed By:   rillig
Date:           Sat Aug 28 16:36:54 UTC 2021

Modified Files:
        src/tests/usr.bin/xlint/lint1: emit.exp-ln
        src/usr.bin/xlint/lint1: decl.c externs1.h tree.c

Log Message:
lint: do not emit GCC builtin functions

Lint1 no longer emits declarations of GCC builtin functions and calls to

Previously, lint generated 3421 useless warnings in a default NetBSD
build, like this:

        __atomic_load_n, arg 1 used inconsistently
            acl.c(216)[pointer to unsigned int]
            rbtdb.c(921)[pointer to unsigned short]

This was because lint just doesn't understand that these functions are
type-generic, which is indeed unusual in C.

These useless warnings made the lint output more frightening than it
should actually be.  Together with the strange formatting of the
diagnostics (space-space-tab after the main message, two spaces and two
colons between the occurrences, symbols are listed in hashcode order),
this creates the impression that lint is not intended to be a
user-friendly tool.

For now, fix the excess warnings, leaving the other items for later.

To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/tests/usr.bin/xlint/lint1/emit.exp-ln
cvs rdiff -u -r1.226 -r1.227 src/usr.bin/xlint/lint1/decl.c
cvs rdiff -u -r1.135 -r1.136 src/usr.bin/xlint/lint1/externs1.h
cvs rdiff -u -r1.357 -r1.358 src/usr.bin/xlint/lint1/tree.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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