github.com/tcnksm/go@v0.0.0-20141208075154-439b32936367/src/cmd/9l/l.h (about)

     1  // cmd/9l/l.h from Vita Nuova.
     2  //
     3  //	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
     4  //	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
     5  //	Portions Copyright © 1997-1999 Vita Nuova Limited
     6  //	Portions Copyright © 2000-2008 Vita Nuova Holdings Limited (www.vitanuova.com)
     7  //	Portions Copyright © 2004,2006 Bruce Ellis
     8  //	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
     9  //	Revisions Copyright © 2000-2008 Lucent Technologies Inc. and others
    10  //	Portions Copyright © 2009 The Go Authors.  All rights reserved.
    11  //
    12  // Permission is hereby granted, free of charge, to any person obtaining a copy
    13  // of this software and associated documentation files (the "Software"), to deal
    14  // in the Software without restriction, including without limitation the rights
    15  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    16  // copies of the Software, and to permit persons to whom the Software is
    17  // furnished to do so, subject to the following conditions:
    18  //
    19  // The above copyright notice and this permission notice shall be included in
    20  // all copies or substantial portions of the Software.
    21  //
    22  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    23  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    24  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
    25  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    26  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    27  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    28  // THE SOFTWARE.
    29  
    30  #include	<u.h>
    31  #include	<libc.h>
    32  #include	<bio.h>
    33  #include	<link.h>
    34  #include	"9.out.h"
    35  
    36  #ifndef	EXTERN
    37  #define	EXTERN	extern
    38  #endif
    39  
    40  enum
    41  {
    42  	thechar = '9',
    43  	PtrSize = 8,
    44  	IntSize = 8,
    45  	RegSize = 8,
    46  	MaxAlign = 32,	// max data alignment
    47  	FuncAlign = 8
    48  };
    49  
    50  #define	P		((Prog*)0)
    51  #define	S		((LSym*)0)
    52  
    53  enum
    54  {
    55  	FPCHIP		= 1,
    56  	STRINGSZ	= 200,
    57  	MAXHIST		= 20,				/* limit of path elements for history symbols */
    58  	DATBLK		= 1024,
    59  	NHASH		= 10007,
    60  	NHUNK		= 100000,
    61  	MINSIZ		= 64,
    62  	NENT		= 100,
    63  	NSCHED		= 20,
    64  	MINLC		= 4,
    65  
    66  	Roffset	= 22,		/* no. bits for offset in relocation address */
    67  	Rindex	= 10		/* no. bits for index in relocation address */
    68  };
    69  
    70  EXTERN	int32	autosize;
    71  EXTERN	LSym*	datap;
    72  EXTERN	int	debug[128];
    73  EXTERN	int32	lcsize;
    74  EXTERN	char	literal[32];
    75  EXTERN	int	nerrors;
    76  EXTERN	vlong	instoffset;
    77  EXTERN	char*	rpath;
    78  EXTERN	vlong	pc;
    79  EXTERN	int32	symsize;
    80  EXTERN	int32	staticgen;
    81  EXTERN	Prog*	lastp;
    82  EXTERN	vlong	textsize;
    83  
    84  void	asmb(void);
    85  void	adddynlib(char *lib);
    86  void	adddynrel(LSym *s, Reloc *r);
    87  void	adddynsym(Link *ctxt, LSym *s);
    88  int	archreloc(Reloc *r, LSym *s, vlong *val);
    89  void	listinit(void);
    90  vlong	rnd(vlong, int32);
    91  
    92  #define	LPUT(a)	(ctxt->arch->endian == BigEndian ? lputb(a):lputl(a))
    93  #define	WPUT(a)	(ctxt->arch->endian == BigEndian ? wputb(a):wputl(a))
    94  #define	VPUT(a)	(ctxt->arch->endian == BigEndian ? vputb(a):vputl(a))
    95  
    96  /* Used by ../ld/dwarf.c */
    97  enum
    98  {
    99  	DWARFREGSP = 1
   100  };