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b835b9cf36
We really ought to support no_sanitize("coverage") in line with other
sanitizers. This came up again in discussions on the Linux-kernel
mailing lists, because we currently do workarounds using objtool to
remove coverage instrumentation. Since that support is only on x86, to
continue support coverage instrumentation on other architectures, we
must support selectively disabling coverage instrumentation via function
attributes.
Unfortunately, for SanitizeCoverage, it has not been implemented as a
sanitizer via fsanitize= and associated options in Sanitizers.def, but
rolls its own option fsanitize-coverage. This meant that we never got
"automatic" no_sanitize attribute support.
Implement no_sanitize attribute support by special-casing the string
"coverage" in the NoSanitizeAttr implementation. To keep the feature as
unintrusive to existing IR generation as possible, define a new negative
function attribute NoSanitizeCoverage to propagate the information
through to the instrumentation pass.
Fixes: https://bugs.llvm.org/show_bug.cgi?id=49035
Reviewed By: vitalybuka, morehouse
Differential Revision: https://reviews.llvm.org/D102772
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| emacs.el | ||
| llvm-mode.el | ||
| README | ||
| tablegen-mode.el | ||
-*- llvm/utils/emacs/README -*-
These are syntax highlighting files for the Emacs and XEmacs editors. Included
are:
* llvm-mode.el
Syntax highlighting mode for LLVM assembly files. To use, add this code to
your ~/.emacs :
(setq load-path
(cons (expand-file-name "path-to-llvm/utils/emacs") load-path))
(require 'llvm-mode)
* tablegen-mode.el
Syntax highlighting mode for TableGen description files. To use, add this code
to your ~/.emacs:
(setq load-path
(cons (expand-file-name "path-to-llvm/utils/emacs") load-path))
(require 'tablegen-mode)
Note: If you notice missing or incorrect syntax highlighting, please contact
<llvm-bugs [at] lists.llvm.org>; if you wish to provide a patch to improve the
functionality, it will be most appreciated. Thank you.