musl - musl - an implementation of the standard library for Linux-based systems

musl - an implementation of the standard library for Linux-based systems

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author	Rich Felker <dalias@aerifal.cx>	2020年08月24日 21:38:49 -0400
committer	Rich Felker <dalias@aerifal.cx>	2020年08月24日 21:38:49 -0400
commit	9d0b8b92a508c328e7eac774847f001f80dfb5ff (patch)
tree	14ed37bd3ca0bc6298d76591fc0bf918b4cbe4f2 /src/internal
parent	4d5786544bb52c62fc1ae84d91684ef2268afa05 (diff)
download	musl-9d0b8b92a508c328e7eac774847f001f80dfb5ff.tar.gz

make h_errno thread-local

the framework to do this always existed but it was deemed unnecessary because the only [ex-]standard functions using h_errno were not thread-safe anyway. however, some of the nonstandard res_* functions are also supposed to set h_errno to indicate the cause of error, and were unable to do so because it was not thread-safe. this change is a prerequisite for fixing them.

Diffstat (limited to 'src/internal')

-rw-r--r--

src/internal/pthread_impl.h

1 files changed, 1 insertions, 0 deletions

diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index 5742dfc5..5749a336 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h

@@ -43,6 +43,7 @@ struct pthread {

long off;

volatile void *volatile pending;

} robust_list;

+ int h_errno_val;

volatile int timer_id;

locale_t locale;

volatile int killlock[1];

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