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Detect pthread_getname_np explicitly.

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At least one libc (musl) defines pthread_setname_np without defining
pthread_getname_np. Detect the presence of each individually, rather than
inferring both must be defined if set is.
This commit is contained in:
David Carlier 2020-11-02 20:29:48 +00:00 • committed by David Goldblatt
parent b3c5690b7e
commit 95f0a77fde
3 changed files with 41 additions and 1 deletions
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5
src/prof_sys.c
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@ -292,8 +292,11 @@ void prof_unwind_init() {
static int
prof_sys_thread_name_read_impl(char *buf, size_t limit) {
#ifdef JEMALLOC_HAVE_PTHREAD_SETNAME_NP
#if defined(JEMALLOC_HAVE_PTHREAD_GETNAME_NP)
return pthread_getname_np(pthread_self(), buf, limit);
#elif defined(JEMALLOC_HAVE_PTHREAD_GET_NAME_NP)
pthread_get_name_np(pthread_self(), buf, limit);
return 0;
#else
return ENOSYS;
#endif