Patch from Paul Mundt adding uClibc sh64 support:

Here's a patch that implements the beginnings of a rudimentary sh64 port. So
far, this only works static, as I haven't done any of the ldso work yet. I've
also not touched the libpthread stuff yet either, so that's also disabled for
now.

This port was based off of some work that Sean McGoogan at SuperH did for his
initial port, but the this patch doesn't carry over too much from there
(basically the libc/sysdeps/linux/sh64/Makefile (or rather, parts of it),
the setjmp/longjmp stuff (which I had to rewrite portions of it to work with
the new toolchains), etc.).

However, for static, everything appears to work correcly, at least in a hello
world type application.

1 files changed, 205 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/sh64/sys/ucontext.h b/libc/sysdeps/linux/sh64/sys/ucontext.h
new file mode 100644
index 000000000..16feb49a5
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/sys/ucontext.h
@@ -0,0 +1,205 @@
+/* Copyright (C) 1999, 2000, 2001 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Where is System V/SH ABI?  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* We need the signal context definitions even if they are not used
+   included in <signal.h>.  */
+#include <bits/sigcontext.h>
+
+
+typedef long long greg_t;
+
+/* Number of general registers.  */
+#define NGREG	64
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+#ifdef __USE_GNU
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R0 = 0,
+#define R0	R0
+  R1 = 1,
+#define R1	R1
+  R2 = 2,
+#define R2	R2
+  R3 = 3,
+#define R3	R3
+  R4 = 4,
+#define R4	R4
+  R5 = 5,
+#define R5	R5
+  R6 = 6,
+#define R6	R6
+  R7 = 7,
+#define R7	R7
+  R8 = 8,
+#define R8	R8
+  R9 = 9,
+#define R9	R9
+  R10 = 10,
+#define R10	R10
+  R11 = 11,
+#define R11	R11
+  R12 = 12,
+#define R12	R12
+  R13 = 13,
+#define R13	R13
+  R14 = 14,
+#define R14	R14
+  R15 = 15,
+#define R15	R15
+  R16 = 16,
+#define R16	R16
+  R17 = 17,
+#define R17	R17
+  R18 = 18,
+#define R18	R18
+  R19 = 19,
+#define R19	R19
+  R20 = 20,
+#define R20	R20
+  R21 = 21,
+#define R21	R21
+  R22 = 22,
+#define R22	R22
+  R23 = 23,
+#define R23	R23
+  R24 = 24,
+#define R24	R24
+  R25 = 25,
+#define R25	R25
+  R26 = 26,
+#define R26	R26
+  R27 = 27,
+#define R27	R27
+  R28 = 28,
+#define R28	R28
+  R29 = 29,
+#define R29	R29
+  R30 = 30,
+#define R30	R30
+  R31 = 31,
+#define R31	R31
+  R32 = 32,
+#define R32	R32
+  R33 = 33,
+#define R33	R33
+  R34 = 34,
+#define R34	R34
+  R35 = 35,
+#define R35	R35
+  R36 = 36,
+#define R36	R36
+  R37 = 37,
+#define R37	R37
+  R38 = 38,
+#define R38	R38
+  R39 = 39,
+#define R39	R39
+  R40 = 40,
+#define R40	R40
+  R41 = 41,
+#define R41	R41
+  R42 = 42,
+#define R42	R42
+  R43 = 43,
+#define R43	R43
+  R44 = 44,
+#define R44	R44
+  R45 = 45,
+#define R45	R45
+  R46 = 46,
+#define R46	R46
+  R47 = 47,
+#define R47	R47
+  R48 = 48,
+#define R48	R48
+  R49 = 49,
+#define R49	R49
+  R50 = 50,
+#define R50	R50
+  R51 = 51,
+#define R51	R51
+  R52 = 52,
+#define R52	R52
+  R53 = 53,
+#define R53	R53
+  R54 = 54,
+#define R54	R54
+  R55 = 55,
+#define R55	R55
+  R56 = 56,
+#define R56	R56
+  R57 = 57,
+#define R57	R57
+  R58 = 58,
+#define R58	R58
+  R59 = 59,
+#define R59	R59
+  R60 = 60,
+#define R60	R60
+  R61 = 61,
+#define R61	R61
+  R62 = 62,
+#define R62	R62
+  R63 = 63,
+#define R63	R63
+};
+#endif
+
+typedef int freg_t;
+
+/* Number of FPU registers.  */
+#define NFPREG	32
+
+/* Structure to describe FPU registers.  */
+typedef freg_t fpregset_t[NFPREG];
+
+/* Context to describe whole processor state.  */
+typedef struct
+  {
+    gregset_t gregs;
+    fpregset_t fpregs;
+    unsigned long long sc_tregs[8];
+    unsigned long long sc_pc;
+    unsigned long long sc_sr;
+    unsigned long long sc_fpscr;
+    
+  } mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext
+  {
+    unsigned long int uc_flags;
+    struct ucontext *uc_link;
+    stack_t uc_stack;
+    mcontext_t uc_mcontext;
+    __sigset_t uc_sigmask;
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */