[rtems commit] epiphany: Workaround until next Newlib snapshot

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    1c64c6889645b76900f3c97af07b6249bfd3e857
Changeset: http://git.rtems.org/rtems/commit/?id=1c64c6889645b76900f3c97af07b6249bfd3e857

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Wed Jan 31 08:18:42 2018 +0100

epiphany: Workaround until next Newlib snapshot

At least with Binutils 2.30 and GCC 7.3 we need symbol definitions
without the leading underscore.

Fixed in Newlib 1658a57715de93d50983f34e75216101eb373993.

---

 cpukit/score/cpu/epiphany/Makefile.am |  1 +
 cpukit/score/cpu/epiphany/setjmp.S    | 69 +++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)

diff --git a/cpukit/score/cpu/epiphany/Makefile.am b/cpukit/score/cpu/epiphany/Makefile.am
index 96b0de0..9622cf5 100644
--- a/cpukit/score/cpu/epiphany/Makefile.am
+++ b/cpukit/score/cpu/epiphany/Makefile.am
@@ -9,6 +9,7 @@ libscorecpu_a_SOURCES  = cpu.c
 libscorecpu_a_SOURCES += epiphany-exception-handler.S
 libscorecpu_a_SOURCES += epiphany-context-switch.S
 libscorecpu_a_SOURCES += epiphany-context-initialize.c
+libscorecpu_a_SOURCES += setjmp.S
 
 libscorecpu_a_CPPFLAGS = $(AM_CPPFLAGS)
 
diff --git a/cpukit/score/cpu/epiphany/setjmp.S b/cpukit/score/cpu/epiphany/setjmp.S
new file mode 100644
index 0000000..b981ee5
--- /dev/null
+++ b/cpukit/score/cpu/epiphany/setjmp.S
@@ -0,0 +1,69 @@
+/* setjmp and longjmp
+
+   Copyright (c) 2011, Adapteva, Inc.
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of Adapteva nor the names of its contributors may be
+      used to endorse or promote products derived from this software without
+      specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+   POSSIBILITY OF SUCH DAMAGE.                                               */
+
+	.file "setjmp.S"
+        .section .text
+        .align 4
+	.global  _setjmp
+        .type _setjmp, %function
+_setjmp:
+	strd lr,[r0]
+	strd r4,[r0,1]
+	strd r6,[r0,2]
+	strd r8,[r0,3]
+	strd r10,[r0,4]
+	strd r32,[r0,5]
+	strd r34,[r0,6]
+	strd r36,[r0,7]
+	strd r38,[r0,8]
+	str sp,[r0,18]
+	mov r0,#0
+	rts
+	.size _setjmp, .-_setjmp
+	.global setjmp
+	.set setjmp, _setjmp
+
+	.global _longjmp
+_longjmp:
+	ldrd lr,[r0] ; return address / r15
+	ldrd r4,[r0,1]
+	ldrd r6,[r0,2]
+	ldrd r8,[r0,3]
+	ldrd r10,[r0,4]
+	ldrd r32,[r0,5]
+	ldrd r34,[r0,6]
+	ldrd r36,[r0,7]
+	ldrd r38,[r0,8]
+	ldr sp,[r0,18]
+	sub r1,r1,0
+	mov r0,#1
+	movne r0,r1
+	jr lr
+        .size   _longjmp, .-_longjmp
+	.global longjmp
+	.set longjmp, _longjmp