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* [glibc] manual: update AddressSanitizer discussion
@ 2023-04-08 20:54 Paul Eggert
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From: Paul Eggert @ 2023-04-08 20:54 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=54ae6d81c94364c1e13a5b8baef52b9e3475fedd
commit 54ae6d81c94364c1e13a5b8baef52b9e3475fedd
Author: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat Apr 8 13:51:26 2023 -0700
manual: update AddressSanitizer discussion
* manual/string.texi (Truncating Strings): Update obsolescent
reference and use the more-generic term “AddressSanitizer”.
Mention fortification, too. -fcheck-pointer-bounds is no longer
supported.
Diff:
---
manual/string.texi | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/manual/string.texi b/manual/string.texi
index 57b804c1df..ad57265274 100644
--- a/manual/string.texi
+++ b/manual/string.texi
@@ -1088,11 +1088,10 @@ name, a truncated name can identify the wrong user.
Although some buffer overruns can be prevented by manually replacing
calls to copying functions with calls to truncation functions, there
-are often easier and safer automatic techniques that cause buffer
-overruns to reliably terminate a program, such as GCC's
-@option{-fcheck-pointer-bounds} and @option{-fsanitize=address}
-options. @xref{Debugging Options,, Options for Debugging Your Program
-or GCC, gcc, Using GCC}. Because truncation functions can mask
+are often easier and safer automatic techniques, such as fortification
+(@pxref{Source Fortification}) and AddressSanitizer
+(@pxref{Instrumentation Options,, Program Instrumentation Options, gcc, Using GCC}).
+Because truncation functions can mask
application bugs that would otherwise be caught by the automatic
techniques, these functions should be used only when the application's
underlying logic requires truncation.
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