--- /dev/null
+/* FPU control word bits. Mips version.
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Olaf Flebbe.
+
+ 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. */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H
+
+/* FP control/status register bit assignments.
+ *
+ * 31-25 24 23 22-18 17-12 11-7 6-2 1-0
+ * (cause) (enables) (flags)
+ * | reserved | FS | C | reserved | E V Z O U I | V Z O U I | V Z O U I | RM
+ *
+ * FS: When set, denormalized results are flushed to zero instead of
+ * causing an unimplemented operation exception.
+ * C: Condition bit.
+ * E: Unimplemented Operation.
+ * V: Invalid Operation.
+ * Z: Division by zero.
+ * O: Overflow.
+ * U: Underflow.
+ * I: Inexact Operation
+ * RM: Rounding mode bits
+ * 00 (RN) - rounding to nearest
+ * 01 (RZ) - rounding toward zero
+ * 10 (RP) - rounding down (toward - infinity)
+ * 11 (RM) - rounding up (toward + infinity)
+ *
+ */
+
+#include <features.h>
+
+/* masking of interrupts */
+#define _FPU_MASK_IM (1 << 11)
+#define _FPU_MASK_DM (1 << 24) /* XXX */
+#define _FPU_MASK_ZM (1 << 10)
+#define _FPU_MASK_OM (1 << 9)
+#define _FPU_MASK_UM (1 << 8)
+#define _FPU_MASK_PM (1 << 7)
+
+/* precision control */
+#define _FPU_EXTENDED 0
+#define _FPU_DOUBLE 0
+#define _FPU_SINGLE 0
+
+/* rounding control */
+#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */
+#define _FPU_RC_DOWN 0x2
+#define _FPU_RC_UP 0x3
+#define _FPU_RC_ZERO 0x1
+
+#define _FPU_RESERVED 0xfe7c0000 /* Reserved bits */
+
+
+/* The fdlibm code requires strict IEEE double precision arithmetic,
+ and no interrupts for exceptions, rounding to nearest. */
+
+#define _FPU_DEFAULT 0x0
+
+/* IEEE: same as above, but exceptions */
+#define _FPU_IEEE (0x1f << 7)
+
+/* Type of the control word. */
+typedef unsigned int fpu_control_t;
+
+/* Macros for accessing the hardware control word. */
+#define _FPU_GETCW(cw) __asm__ ("cfc1 %0, $31; nop; nop" : "=r" (cw))
+#define _FPU_SETCW(cw) __asm__ ("ctc1 %0, $31; nop; nop" : : "r" (cw))
+
+/* Default control word set at startup. */
+extern fpu_control_t __fpu_control;
+
+__BEGIN_DECLS
+
+/* Called at startup. It can be used to manipulate fpu control register. */
+extern void __setfpucw __P ((fpu_control_t));
+
+__END_DECLS
+
+#endif /* fpu_control.h */
--- /dev/null
+/* Initialization code run first thing by the ELF startup code. For mips/Unix.
+ Copyright (C) 1996, 1997 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. */
+
+#include <unistd.h>
+
+extern void __libc_init (int, char **, char **);
+extern void __libc_global_ctors (void);
+
+
+static void
+init (int *data)
+{
+ int argc = *data;
+ char **argv = (void *) (data + 1);
+ char **envp = &argv[argc + 1];
+
+ __environ = envp;
+ __libc_init (argc, argv, envp);
+}
+
+#ifdef PIC
+/* This function is called to initialize the shared C library.
+ It is called just before the user _start code from mips/elf/start.S,
+ with the stack set up as that code gets it. */
+
+/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT
+ pointer in the dynamic section based solely on that. It is convention
+ for this function to be in the `.init' section, but the symbol name is
+ the only thing that really matters!! */
+/*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/
+
+void
+_init (int argc, ...)
+{
+ init (&argc);
+
+ __libc_global_ctors ();
+}
+#endif
+
+
+void
+__libc_init_first (int argc __attribute__ ((unused)), ...)
+{
+#ifndef PIC
+ init (&argc);
+#endif
+}
--- /dev/null
+/* Machine-specific calling sequence for `mcount' profiling function. MIPS
+ Copyright (C) 1996, 1997 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. */
+
+#define _MCOUNT_DECL static void __mcount
+
+/* Call __mcount with our the return PC for our caller,
+ and the return PC our caller will return to. */
+#ifdef PIC
+#define CPLOAD ".cpload $25;"
+#else
+#define CPLOAD
+#endif
+
+#define MCOUNT asm(\
+ ".globl _mcount;" \
+ ".align 2;" \
+ ".type _mcount,@function;" \
+ "_mcount:;" \
+ ".set noreorder;" \
+ ".set noat;" \
+ CPLOAD \
+ "sw $4,8($29);" \
+ "sw $5,12($29);" \
+ "sw $6,16($29);" \
+ "sw $7,20($29);" \
+ "sw $1,0($29);" \
+ "sw $31,4($29);" \
+ "move $5,$31;" \
+ "jal __mcount;" \
+ "move $4,$1;" \
+ "lw $4,8($29);" \
+ "lw $5,12($29);" \
+ "lw $6,16($29);" \
+ "lw $7,20($29);" \
+ "lw $31,4($29);" \
+ "lw $1,0($29);" \
+ "addu $29,$29,8;" \
+ "j $31;" \
+ "move $31,$1;" \
+ ".set reorder;" \
+ ".set at");
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