Move mips from ports to libc.

I've moved the MIPS port from ports to the main sysdeps hierarchy.
Beyond the README update, the move of the files was simply

git mv ports/sysdeps/mips sysdeps/mips
git mv ports/sysdeps/unix/mips sysdeps/unix/mips
git mv ports/sysdeps/unix/sysv/linux/mips sysdeps/unix/sysv/linux/mips

and in addition to the ChangeLog entries here, I put a note at the top
of ports/ChangeLog.mips similar to those in other files.

Tested that disassembly of installed shared libraries for mips is the
same before and after this patch (except for ld.so where paths in
assertions are involved, as for arm).

	* sysdeps/mips: Move directory from ports/sysdeps/mips.
	* sysdeps/unix/mips: Move directory from ports/sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory from
	ports/sysdeps/unix/sysv/linux/mips.
	* README: Update listing for mips-*-linux-gnu and
	mips64-*-linux-gnu.

	* sysdeps/mips: Move directory to ../sysdeps/mips.
	* sysdeps/unix/mips: Move directory to ../sysdeps/unix/mips.
	* sysdeps/unix/sysv/linux/mips: Move directory to
	../sysdeps/unix/sysv/linux/mips.

1 files changed, 141 insertions, 0 deletions

diff --git a/sysdeps/mips/machine-gmon.h b/sysdeps/mips/machine-gmon.h
new file mode 100644
index 0000000000..aac1723ef5
--- /dev/null
+++ b/sysdeps/mips/machine-gmon.h
@@ -0,0 +1,141 @@
+/* Machine-specific calling sequence for `mcount' profiling function.  MIPS
+   Copyright (C) 1996-2014 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 <sgidefs.h>
+
+#define _MCOUNT_DECL(frompc,selfpc) \
+static void __attribute_used__ __mcount (u_long frompc, u_long selfpc)
+
+/* Call __mcount with the return PC for our caller,
+   and the return PC our caller will return to.  */
+
+#if _MIPS_SIM == _ABIO32
+
+#ifdef __PIC__
+# define CPLOAD ".cpload $25;"
+# define CPRESTORE ".cprestore 44\n\t"
+#else
+# define CPLOAD
+# define CPRESTORE
+#endif
+
+#define MCOUNT asm(\
+	".globl _mcount;\n\t" \
+	".align 2;\n\t" \
+	".set push;\n\t" \
+	".set nomips16;\n\t" \
+	".type _mcount,@function;\n\t" \
+	".ent _mcount\n\t" \
+        "_mcount:\n\t" \
+        ".frame $sp,44,$31\n\t" \
+        ".set noreorder;\n\t" \
+        ".set noat;\n\t" \
+        CPLOAD \
+	"subu $29,$29,48;\n\t" \
+	CPRESTORE \
+        "sw $4,24($29);\n\t" \
+        "sw $5,28($29);\n\t" \
+        "sw $6,32($29);\n\t" \
+        "sw $7,36($29);\n\t" \
+        "sw $2,40($29);\n\t" \
+        "sw $1,16($29);\n\t" \
+        "sw $31,20($29);\n\t" \
+        "move $5,$31;\n\t" \
+        "move $4,$1;\n\t" \
+        "jal __mcount;\n\t" \
+        "nop;\n\t" \
+        "lw $4,24($29);\n\t" \
+        "lw $5,28($29);\n\t" \
+        "lw $6,32($29);\n\t" \
+        "lw $7,36($29);\n\t" \
+        "lw $2,40($29);\n\t" \
+        "lw $31,20($29);\n\t" \
+        "lw $1,16($29);\n\t" \
+        "addu $29,$29,56;\n\t" \
+        "j $31;\n\t" \
+        "move $31,$1;\n\t" \
+	".end _mcount;\n\t" \
+	".set pop");
+
+#else
+
+#ifdef __PIC__
+# define CPSETUP ".cpsetup $25, 88, _mcount;"
+# define CPRETURN ".cpreturn;"
+#else
+# define CPSETUP
+# define CPRETURN
+#endif
+
+#if _MIPS_SIM == _ABIN32
+# define PTR_ADDU_STRING "add" /* no u */
+# define PTR_SUBU_STRING "sub" /* no u */
+#elif _MIPS_SIM == _ABI64
+# define PTR_ADDU_STRING "daddu"
+# define PTR_SUBU_STRING "dsubu"
+#else
+# error "Unknown ABI"
+#endif
+
+#define MCOUNT asm(\
+	".globl _mcount;\n\t" \
+	".align 3;\n\t" \
+	".set push;\n\t" \
+	".set nomips16;\n\t" \
+	".type _mcount,@function;\n\t" \
+	".ent _mcount\n\t" \
+        "_mcount:\n\t" \
+        ".frame $sp,88,$31\n\t" \
+        ".set noreorder;\n\t" \
+        ".set noat;\n\t" \
+        PTR_SUBU_STRING " $29,$29,96;\n\t" \
+        CPSETUP \
+        "sd $4,24($29);\n\t" \
+        "sd $5,32($29);\n\t" \
+        "sd $6,40($29);\n\t" \
+        "sd $7,48($29);\n\t" \
+        "sd $8,56($29);\n\t" \
+        "sd $9,64($29);\n\t" \
+        "sd $10,72($29);\n\t" \
+        "sd $11,80($29);\n\t" \
+        "sd $2,16($29);\n\t" \
+        "sd $1,0($29);\n\t" \
+        "sd $31,8($29);\n\t" \
+        "move $5,$31;\n\t" \
+        "move $4,$1;\n\t" \
+        "jal __mcount;\n\t" \
+        "nop;\n\t" \
+        "ld $4,24($29);\n\t" \
+        "ld $5,32($29);\n\t" \
+        "ld $6,40($29);\n\t" \
+        "ld $7,48($29);\n\t" \
+        "ld $8,56($29);\n\t" \
+        "ld $9,64($29);\n\t" \
+        "ld $10,72($29);\n\t" \
+        "ld $11,80($29);\n\t" \
+        "ld $2,16($29);\n\t" \
+        "ld $31,8($29);\n\t" \
+        "ld $1,0($29);\n\t" \
+        CPRETURN \
+        PTR_ADDU_STRING " $29,$29,96;\n\t" \
+        "j $31;\n\t" \
+        "move $31,$1;\n\t" \
+	".end _mcount;\n\t" \
+	".set pop");
+
+#endif