[src/nathanw_sa]: src/sys/arch/arm/include Change way PIC stuff is emitted fo...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/af18f9bf4a79
branches:  nathanw_sa
changeset: 504858:af18f9bf4a79
user:      matt <matt%NetBSD.org@localhost>
date:      Mon Jul 16 05:43:33 2001 +0000

description:
Change way PIC stuff is emitted for ELF to be more flexible.

diffstat:

 sys/arch/arm/include/asm.h |  133 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 133 insertions(+), 0 deletions(-)

diffs (137 lines):

diff -r 52a113ad8083 -r af18f9bf4a79 sys/arch/arm/include/asm.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/arm/include/asm.h        Mon Jul 16 05:43:33 2001 +0000
@@ -0,0 +1,133 @@
+/*     $NetBSD: asm.h,v 1.4.6.2 2001/07/16 05:43:33 matt Exp $ */
+
+/*
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     from: @(#)asm.h 5.5 (Berkeley) 5/7/91
+ */
+
+#ifndef _ARM32_ASM_H_
+#define _ARM32_ASM_H_
+
+#ifdef __ELF__
+# define _C_LABEL(x)   x
+#else
+# ifdef __STDC__
+#  define _C_LABEL(x)  _ ## x
+# else
+#  define _C_LABEL(x)  _/**/x
+# endif
+#endif
+#define        _ASM_LABEL(x)   x
+
+#ifdef __STDC__
+# define __CONCAT(x,y) x ## y
+# define __STRING(x)   #x
+#else
+# define __CONCAT(x,y) x/**/y
+# define __STRING(x)   "x"
+#endif
+
+#ifndef _ALIGN_TEXT
+# define _ALIGN_TEXT .align 0
+#endif
+
+/*
+ * gas/arm uses @ as a single comment character and thus cannot be used here
+ * Instead it recognised the # instead of an @ symbols in .type directives
+ * We define a couple of macros so that assembly code will not be dependant
+ * on one or the other.
+ */
+#define _ASM_TYPE_FUNCTION     #function
+#define _ASM_TYPE_OBJECT       #object
+#define _ENTRY(x) \
+       .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x:
+
+#ifdef GPROF
+# ifdef __ELF__
+#  define _PROF_PROLOGUE       \
+       mov ip, lr; bl __mcount
+# else
+#  define _PROF_PROLOGUE       \
+       mov ip,lr; bl mcount
+# endif
+#else
+# define _PROF_PROLOGUE
+#endif
+
+#define        ENTRY(y)        _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
+#define        ENTRY_NP(y)     _ENTRY(_C_LABEL(y))
+#define        ASENTRY(y)      _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
+#define        ASENTRY_NP(y)   _ENTRY(_ASM_LABEL(y))
+
+#define        ASMSTR          .asciz
+
+#if defined(__ELF__) && defined(PIC)
+#ifdef __STDC__
+#define        PIC_SYM(x,y)    x ## ( ## y ## )
+#else
+#define        PIC_SYM(x,y)    x/**/(/**/y/**/)
+#endif
+#else
+#define        PIC_SYM(x,y)    x
+#endif
+
+#ifdef __ELF__
+#define RCSID(x)       .section ".ident"; .asciz x
+#else
+#define RCSID(x)       .text; .asciz x
+#endif
+
+#ifdef __ELF__
+#define        WEAK_ALIAS(alias,sym)                                           \
+       .weak alias;                                                    \
+       alias = sym
+#endif
+
+#ifdef __STDC__
+#define        WARN_REFERENCES(sym,msg)                                        \
+       .stabs msg ## ,30,0,0,0 ;                                       \
+       .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
+#elif defined(__ELF__)
+#define        WARN_REFERENCES(sym,msg)                                        \
+       .stabs msg,30,0,0,0 ;                                           \
+       .stabs __STRING(sym),1,0,0,0
+#else
+#define        WARN_REFERENCES(sym,msg)                                        \
+       .stabs msg,30,0,0,0 ;                                           \
+       .stabs __STRING(_/**/sym),1,0,0,0
+#endif /* __STDC__ */
+
+#endif /* !_ARM_ASM_H_ */