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| author | Paul Eggert <eggert@cs.ucla.edu> | 2023-04-08 13:51:26 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2023-04-08 13:53:28 -0700 |
| commit | 54ae6d81c94364c1e13a5b8baef52b9e3475fedd (patch) | |
| tree | 29a13c8d3c1a3cfca53f24b9a763c48d56cef059 /manual/string.texi | |
| parent | f173e27272e6e37cab016f9ef3f90d3e1189329f (diff) | |
| download | glibc-54ae6d81c94364c1e13a5b8baef52b9e3475fedd.tar.gz glibc-54ae6d81c94364c1e13a5b8baef52b9e3475fedd.tar.xz glibc-54ae6d81c94364c1e13a5b8baef52b9e3475fedd.zip | |
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.
Diffstat (limited to 'manual/string.texi')
| -rw-r--r-- | manual/string.texi | 9 |
1 files 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. |