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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-05-14 17:44:15 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-07-07 14:10:58 -0300 |
| commit | 28aff047818eb1726394296d27b9c7885340bead (patch) | |
| tree | 5737f4a11497ea9dbe00982d12688ede57eff0a6 /NEWS | |
| parent | 9deec7c8bab24659e78172dd850f4ca37c57940c (diff) | |
| download | glibc-28aff047818eb1726394296d27b9c7885340bead.tar.gz glibc-28aff047818eb1726394296d27b9c7885340bead.tar.xz glibc-28aff047818eb1726394296d27b9c7885340bead.zip | |
string: Implement strerror in terms of strerror_l
If the thread is terminated then __libc_thread_freeres will free the storage via __glibc_tls_internal_free. It is only within the calling thread that this matters. It makes strerror MT-safe. Checked on x86-64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu, and s390x-linux-gnu. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/NEWS b/NEWS index 482d2253e0..5d399293ba 100644 --- a/NEWS +++ b/NEWS @@ -79,6 +79,11 @@ Deprecated and removed features, and other changes affecting compatibility: compatibility symbols to support old binaries. All programs should use strerror or strerror_r instead. +* Both strerror and strerror_l now share the same internal buffer in the + calling thread, meaning that the returned string pointer may be invalided + or contents might be overwritten on subsequent calls in the same thread or + if the thread is terminated. It makes strerror MT-safe. + Changes to build and runtime requirements: * powerpc64le requires GCC 7.4 or newer. This is required for supporting |