9eab2f146a
profiling and kernel profiling. To enable kernel profiling one has to build kgmon(8). I will enable the build once I managed to build and test powerpc (32-bit) kernels with profiling support. - add a powerpc64 PROF_PROLOGUE for _mcount. - add macros to avoid adding the PROF_PROLOGUE in certain assembly entries. - apply these macros where needed. - add size information to the MCOUNT function. MFC after: 3 weeks, together with r230291
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/*-
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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* Copyright (C) 1995, 1996 TooLs GmbH.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by TooLs GmbH.
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* 4. The name of TooLs GmbH may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $NetBSD: asm.h,v 1.6.18.1 2000/07/25 08:37:14 kleink Exp $
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* $FreeBSD$
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*/
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#ifndef _MACHINE_ASM_H_
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#define _MACHINE_ASM_H_
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#include <sys/cdefs.h>
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#if defined(PIC) && !defined(__powerpc64__)
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#define PIC_PROLOGUE XXX
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#define PIC_EPILOGUE XXX
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#define PIC_PLT(x) x@plt
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#ifdef __STDC__
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#define PIC_GOT(x) XXX
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#else /* not __STDC__ */
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#define PIC_GOT(x) XXX
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#endif /* __STDC__ */
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#else
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#define PIC_PROLOGUE
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#define PIC_EPILOGUE
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#define PIC_PLT(x) x
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#define PIC_GOT(x) x
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#endif
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#define CNAME(csym) csym
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#define ASMNAME(asmsym) asmsym
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#ifdef __powerpc64__
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#define HIDENAME(asmsym) __CONCAT(_,asmsym)
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#else
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#define HIDENAME(asmsym) __CONCAT(.,asmsym)
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#endif
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#define _GLOBAL(x) \
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.data; .align 2; .globl x; x:
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#ifdef __powerpc64__
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#define _ENTRY(x) \
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.text; .align 2; .globl x; .section ".opd","aw"; \
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.align 3; x: \
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.quad .L.x,.TOC.@tocbase,0; .size x,24; .previous; \
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.align 4; .type x,@function; .L.x:
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#else
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#define _ENTRY(x) \
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.text; .align 4; .globl x; .type x,@function; x:
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#endif
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#if defined(PROF) || (defined(_KERNEL) && defined(GPROF))
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# ifdef __powerpc64__
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# define _PROF_PROLOGUE mflr 0; \
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std 3,48(1); \
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std 4,56(1); \
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std 5,64(1); \
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std 0,16(1); \
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stdu 1,-112(1); \
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bl _mcount; \
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nop; \
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ld 0,112+16(1); \
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ld 3,112+48(1); \
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ld 4,112+56(1); \
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ld 5,112+64(1); \
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mtlr 0; \
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addi 1,1,112
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# else
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# define _PROF_PROLOGUE mflr 0; stw 0,4(1); bl _mcount
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# endif
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#else
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# define _PROF_PROLOGUE
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#endif
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#define ASENTRY(y) _ENTRY(ASMNAME(y)); _PROF_PROLOGUE
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#define ENTRY(y) _ENTRY(CNAME(y)); _PROF_PROLOGUE
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#define GLOBAL(y) _GLOBAL(CNAME(y))
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#define ASENTRY_NOPROF(y) _ENTRY(ASMNAME(y))
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#define ENTRY_NOPROF(y) _ENTRY(CNAME(y))
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#define ASMSTR .asciz
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#define RCSID(x) .text; .asciz x
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#undef __FBSDID
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#if !defined(lint) && !defined(STRIP_FBSDID)
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#define __FBSDID(s) .ident s
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#else
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#define __FBSDID(s) /* nothing */
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#endif /* not lint and not STRIP_FBSDID */
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#define WEAK_ALIAS(alias,sym) \
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.weak alias; \
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alias = sym
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#ifdef __STDC__
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#define WARN_REFERENCES(_sym,_msg) \
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.section .gnu.warning. ## _sym ; .ascii _msg ; .text
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#else
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#define WARN_REFERENCES(_sym,_msg) \
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.section .gnu.warning./**/_sym ; .ascii _msg ; .text
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#endif /* __STDC__ */
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#endif /* !_MACHINE_ASM_H_ */
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