1 files changed, 98 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/setjmp.S b/ports/sysdeps/arm/setjmp.S
new file mode 100644
index 0000000000..5e3f39cc75
--- /dev/null
+++ b/ports/sysdeps/arm/setjmp.S
@@ -0,0 +1,98 @@
+/* setjmp for ARM.
+   Copyright (C) 1997, 1998, 2005, 2006, 2008 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/>.  */
+
+#include <sysdep.h>
+#define _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+#include <rtld-global-offsets.h>
+
+ENTRY (__sigsetjmp)
+	mov	ip, r0
+
+	/* Save registers */
+	stmia	ip!, {v1-v6, sl, fp, sp, lr}
+
+	/* Check if we have a VFP unit.  */
+#ifdef IS_IN_rtld
+	ldr	a3, 1f
+	ldr	a4, Lrtld_local_ro
+0:	add	a3, pc, a3
+	add	a3, a3, a4
+	ldr	a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
+#else
+#ifdef PIC
+	ldr	a3, 1f
+	ldr	a4, Lrtld_global_ro
+0:	add	a3, pc, a3
+	ldr	a3, [a3, a4]
+	ldr	a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
+#else
+	ldr	a3, Lhwcap
+	ldr	a3, [a3, #0]
+#endif
+#endif
+
+	tst	a3, #HWCAP_ARM_VFP
+	beq	Lno_vfp
+
+	/* Store the VFP registers.
+	   Don't use VFP instructions directly because this code
+	   is used in non-VFP multilibs.  */
+	/* Following instruction is vstmia ip!, {d8-d15}.  */
+	stc	p11, cr8, [ip], #64
+	/* Store the floating-point status register.  */
+	/* Following instruction is vmrs a4, fpscr.  */
+	mrc	p10, 7, a4, cr1, cr0, 0
+	str	a4, [ip], #4
+Lno_vfp:
+
+	tst	a3, #HWCAP_ARM_IWMMXT
+	beq	Lno_iwmmxt
+
+	/* Save the call-preserved iWMMXt registers.  */
+	/* Following instructions are wstrd wr10, [ip], #8 (etc.)  */
+	stcl	p1, cr10, [r12], #8
+	stcl	p1, cr11, [r12], #8
+	stcl	p1, cr12, [r12], #8
+	stcl	p1, cr13, [r12], #8
+	stcl	p1, cr14, [r12], #8
+	stcl	p1, cr15, [r12], #8
+Lno_iwmmxt:
+
+	/* Make a tail call to __sigjmp_save; it takes the same args.  */
+	B	PLTJMP(C_SYMBOL_NAME(__sigjmp_save))
+
+#ifdef IS_IN_rtld
+1:	.long	_GLOBAL_OFFSET_TABLE_ - 0b - 8
+Lrtld_local_ro:
+	.long	C_SYMBOL_NAME(_rtld_local_ro)(GOTOFF)
+#else
+#ifdef PIC
+1:	.long	_GLOBAL_OFFSET_TABLE_ - 0b - 8
+Lrtld_global_ro:
+	.long	C_SYMBOL_NAME(_rtld_global_ro)(GOT)
+#else
+Lhwcap:
+	.long	C_SYMBOL_NAME(_dl_hwcap)
+#endif
+#endif
+
+END (__sigsetjmp)
+
+hidden_def (__sigsetjmp)