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authorFlorian Weimer <fweimer@redhat.com>2021-05-10 10:31:41 +0200
committerFlorian Weimer <fweimer@redhat.com>2021-05-10 10:31:41 +0200
commit321789f61aa93c14390535aa3cf01846633cd022 (patch)
treefe2687c3058b23379918e700a7bfec82da2f4cd0 /sysdeps
parentd6163dfd3831cf48b69f430f37b4c099059a9db5 (diff)
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nptl: Export __libc_multiple_threads from libc as an internal symbol
This allows the elimination of the __libc_multiple_threads_ptr
variable in libpthread and its initialization procedure.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/single-thread.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/single-thread.h b/sysdeps/unix/sysv/linux/single-thread.h
index a28aaed04d..841f8c69d5 100644
--- a/sysdeps/unix/sysv/linux/single-thread.h
+++ b/sysdeps/unix/sysv/linux/single-thread.h
@@ -27,9 +27,13 @@
    The ABI might define SINGLE_THREAD_BY_GLOBAL to enable the single thread
    check to use global variables instead of the pthread_t field.  */
 
+#ifndef __ASSEMBLER__
+extern int __libc_multiple_threads;
+libc_hidden_proto (__libc_multiple_threads)
+#endif
+
 #ifdef SINGLE_THREAD_BY_GLOBAL
 # if IS_IN (libc)
-extern int __libc_multiple_threads;
 #  define SINGLE_THREAD_P \
   __glibc_likely (__libc_multiple_threads == 0)
 # elif IS_IN (libpthread)