diff mbox series

[uclibc-ng-devel,1/4] or1k: add missing tls macros

Message ID 20200405113540.25084-2-yann@sionneau.net
State New
Headers show
Series [uclibc-ng-devel,1/4] or1k: add missing tls macros | expand

Commit Message

Yann Sionneau April 5, 2020, 11:35 a.m. UTC
Signed-off-by: Yann Sionneau <yann@sionneau.net>
---
 test/tls/tls-macros-or1k.h | 75 ++++++++++++++++++++++++++++++++++++++
 test/tls/tls-macros.h      |  4 ++
 2 files changed, 79 insertions(+)
 create mode 100644 test/tls/tls-macros-or1k.h
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Patch

diff --git a/test/tls/tls-macros-or1k.h b/test/tls/tls-macros-or1k.h
new file mode 100644
index 0000000..dcf78d6
--- /dev/null
+++ b/test/tls/tls-macros-or1k.h
@@ -0,0 +1,75 @@ 
+/* Macros to support TLS testing, OpenRISC version.
+   Copyright (C) 2019 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/>.  */
+
+#define TLS_LOAD_GOT \
+  ({ register long lr __asm__ ("r9");					\
+     long got;								\
+     asm ("l.jal    0x8\n\t"						\
+	  " l.movhi %0, gotpchi(_GLOBAL_OFFSET_TABLE_-4)\n\t"		\
+	  "l.ori    %0, %0, gotpclo(_GLOBAL_OFFSET_TABLE_+0)\n\t"	\
+	  "l.add    %0, %0, %1"						\
+	  : "=r" (got), "=r" (lr));					\
+     got; })
+
+/* General Dynamic:
+     l.movhi r17, tlsgdhi(symbol)
+     l.ori   r17, r17, tlsgdlo(symbol)
+     l.add   r17, r17, r16
+     l.or    r3, r17, r17
+     l.jal   plt(__tls_get_addr)
+      l.nop  */
+
+#define TLS_GD(x)					\
+  ({ void *__tlsgd;					\
+     extern void *__tls_get_addr (void *);          	\
+     asm ("l.movhi %0, tlsgdhi(" #x ")\n\t"		\
+	  "l.ori   %0, %0, tlsgdlo(" #x ")\n\t"		\
+	  : "=r" (__tlsgd));				\
+     (int *) __tls_get_addr (TLS_LOAD_GOT + __tlsgd); })
+
+#define TLS_LD(x) TLS_GD(x)
+
+/* Initial Exec:
+     l.movhi r17, gottpoffhi(symbol)
+     l.add   r17, r17, r16
+     l.lwz   r17, gottpofflo(symbol)(r17)
+     l.add   r17, r17, r10
+     l.lbs   r17, 0(r17)  */
+
+#define TLS_IE(x)					\
+  ({ register long __tls __asm__ ("r10");		\
+     void *__tlsie;					\
+     asm ("l.movhi  %0, gottpoffhi(" #x ")\n\t"		\
+	  "l.add    %0, %0, %1\n\t"			\
+	  "l.lwz    %0, gottpofflo(" #x ")(%0)\n\t"	\
+	  "l.add    %0, %0, %2\n\t"			\
+	  : "=&r" (__tlsie) : "r" (TLS_LOAD_GOT),	\
+	    "r" (__tls) : "memory");			\
+     __tlsie; })
+
+/* Local Exec:
+     l.movhi r17, tpoffha(symbol)
+     l.add   r17, r17, r10
+     l.addi  r17, r17, tpofflo(symbol)
+     l.lbs   r17, 0(r17)  */
+
+#define TLS_LE(x)					\
+  ({ register long __tls __asm__ ("r10");		\
+     void *__tlsle;					\
+     asm ("l.movhi  %0, tpoffha(" #x ")\n\t"		\
+	  "l.add    %0, %0, %1\n\t"			\
+	  "l.addi   %0, %0, tpofflo(" #x ")\n\t"	\
+	  : "=&r" (__tlsle) : "r" (__tls) : "memory");	\
+     __tlsle; })
diff --git a/test/tls/tls-macros.h b/test/tls/tls-macros.h
index 9053d8d..71e8ef4 100644
--- a/test/tls/tls-macros.h
+++ b/test/tls/tls-macros.h
@@ -76,6 +76,10 @@ 
 #include <tls-macros-xtensa.h>
 #endif
 
+#ifdef __or1k__
+#include <tls-macros-or1k.h>
+#endif
+
 #if !defined TLS_LE || !defined TLS_IE \
       || !defined TLS_LD || !defined TLS_GD
 # error "No support for this architecture so far."