1 files changed, 111 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/__longjmp.S b/ports/sysdeps/arm/__longjmp.S
new file mode 100644
index 0000000000..cc802c15bd
--- /dev/null
+++ b/ports/sysdeps/arm/__longjmp.S
@@ -0,0 +1,111 @@
+/* longjmp for ARM.
+   Copyright (C) 1997, 1998, 2005, 2006, 2009, 2010
+     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>
+
+/* __longjmp(jmpbuf, val) */
+
+ENTRY (__longjmp)
+	mov	ip, r0
+	movs	r0, r1		/* get the return value in place */
+	moveq	r0, #1		/* can't let setjmp() return zero! */
+
+#ifdef CHECK_SP
+	ldr	r4, [ip, #32]	/* jmpbuf's sp */
+	cfi_undefined (r4)
+	CHECK_SP (r4)
+#endif
+	LOADREGS(ia, ip!, {v1-v6, sl, fp, sp, lr})
+	cfi_restore (v1)
+	cfi_restore (v2)
+	cfi_restore (v3)
+	cfi_restore (v4)
+	cfi_restore (v5)
+	cfi_restore (v6)
+	cfi_restore (sl)
+	cfi_restore (fp)
+	cfi_restore (sp)
+	cfi_restore (lr)
+
+#ifdef IS_IN_rtld
+  	ldr	a2, 1f
+	ldr	a3, Lrtld_local_ro
+0:	add	a2, pc, a2
+	add	a2, a2, a3
+	ldr	a2, [a2, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
+#else
+#ifdef PIC
+  	ldr	a2, 1f
+	ldr	a3, Lrtld_global_ro
+0:	add	a2, pc, a2
+	ldr	a2, [a2, a3]
+	ldr	a2, [a2, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET]
+#else
+	ldr	a2, Lhwcap
+	ldr	a2, [a2, #0]
+#endif
+#endif
+
+	tst	a2, #HWCAP_ARM_VFP
+	beq	Lno_vfp
+
+	/* Restore the VFP registers.  */
+	/* Following instruction is vldmia ip!, {d8-d15}.  */
+	ldc	p11, cr8, [r12], #64
+	/* Restore the floating-point status register.  */
+	ldr     a3, [ip], #4
+	/* Following instruction is fmxr fpscr, a3.  */
+	mcr	p10, 7, a3, cr1, cr0, 0
+Lno_vfp:
+
+	tst	a2, #HWCAP_ARM_IWMMXT
+	beq	Lno_iwmmxt
+
+	/* Restore the call-preserved iWMMXt registers.  */
+	/* Following instructions are wldrd wr10, [ip], #8 (etc.)  */
+	ldcl	p1, cr10, [r12], #8
+	ldcl	p1, cr11, [r12], #8
+	ldcl	p1, cr12, [r12], #8
+	ldcl	p1, cr13, [r12], #8
+	ldcl	p1, cr14, [r12], #8
+	ldcl	p1, cr15, [r12], #8
+Lno_iwmmxt:
+
+	DO_RET(lr)
+
+#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 (__longjmp)