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| author | Sam McCall <sam.mccall@gmail.com> | 2018-02-13 23:23:59 +0000 |
|---|---|---|
| committer | Sam McCall <sam.mccall@gmail.com> | 2018-02-13 23:23:59 +0000 |
| commit | 6358064d02aba4c65b651364a10357ba8d74b3c1 (patch) | |
| tree | 9befa9a4a6fbf6810703a43ddd0f20af2bd83438 /llvm/lib/Support/Unix/Threading.inc | |
| parent | 361b5e116981855726e64e64f9d8784f92e2f698 (diff) | |
| download | bcm5719-llvm-6358064d02aba4c65b651364a10357ba8d74b3c1.tar.gz bcm5719-llvm-6358064d02aba4c65b651364a10357ba8d74b3c1.zip | |
Fix off-by-one in set_thread_name which causes truncation to fail on Linux
llvm-svn: 325069
Diffstat (limited to 'llvm/lib/Support/Unix/Threading.inc')
| -rw-r--r-- | llvm/lib/Support/Unix/Threading.inc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Support/Unix/Threading.inc b/llvm/lib/Support/Unix/Threading.inc index 7369cff8466..2337b2c76cc 100644 --- a/llvm/lib/Support/Unix/Threading.inc +++ b/llvm/lib/Support/Unix/Threading.inc @@ -138,8 +138,9 @@ void llvm::set_thread_name(const Twine &Name) { // terminated, but additionally the end of a long thread name will usually // be more unique than the beginning, since a common pattern is for similar // threads to share a common prefix. + // Note that the name length includes the null terminator. if (get_max_thread_name_length() > 0) - NameStr = NameStr.take_back(get_max_thread_name_length()); + NameStr = NameStr.take_back(get_max_thread_name_length() - 1); (void)NameStr; #if defined(__linux__) #if (defined(__GLIBC__) && defined(_GNU_SOURCE)) || defined(__ANDROID__) |
