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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2018-03-17 01:28:41 +0100
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2018-03-25 00:52:39 +0100
commitbcfa607b26c2399d4fda88705d40978d62af8bf3 (patch)
treeb13774ef00a4531ba760954a1d3cc9f7e48731cb /sysdeps/mach/hurd/libc-start.h
parentfa97d2ab5b19de0ca3cd02471d0bbf4f09b5032d (diff)
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hurd: Initialize TLS and libpthread before signal thread start
* sysdeps/generic/libc-start.h [!SHARED] (ARCH_SETUP_TLS): Define to
__libc_setup_tls.
* sysdeps/unix/sysv/linux/powerpc/libc-start.h [!SHARED]
(ARCH_SETUP_TLS): Likewise.
* sysdeps/mach/hurd/libc-start.h: New file copied from
sysdeps/generic/libc-start.h, but define ARCH_SETUP_TLS to empty.
* csu/libc-start.c [!SHARED] (LIBC_START_MAIN): Call ARCH_SETUP_TLS instead
of __libc_setup_tls.
* sysdeps/mach/hurd/i386/init-first.c [!SHARED] (init1): Call
__libc_setup_tls before initializing libpthread and running _hurd_init which
starts the signal thread.
Diffstat (limited to 'sysdeps/mach/hurd/libc-start.h')
-rw-r--r--sysdeps/mach/hurd/libc-start.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/libc-start.h b/sysdeps/mach/hurd/libc-start.h
new file mode 100644
index 0000000000..f7e39935ce
--- /dev/null
+++ b/sysdeps/mach/hurd/libc-start.h
@@ -0,0 +1,31 @@
+/* Hurd definitions for libc main startup.
+   Copyright (C) 2017-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _LIBC_START_H
+#define _LIBC_START_H
+
+#ifndef SHARED
+/* By default we perform STT_GNU_IFUNC resolution *before* TLS
+   initialization, and this means you cannot, without machine
+   knowledge, access TLS from an IFUNC resolver.  */
+#define ARCH_SETUP_IREL() apply_irel ()
+#define ARCH_SETUP_TLS()
+#define ARCH_APPLY_IREL()
+#endif /* ! SHARED  */
+
+#endif /* _LIBC_START_H  */