[deliverable/binutils-gdb.git] / include / coff / powerpc.h

/*** coff information for the powerpc.  */


/********************** FILE HEADER **********************/

struct external_filehdr {
	char f_magic[2];	/* magic number			*/
	char f_nscns[2];	/* number of sections		*/
	char f_timdat[4];	/* time & date stamp		*/
	char f_symptr[4];	/* file pointer to symtab	*/
	char f_nsyms[4];	/* number of symtab entries	*/
	char f_opthdr[2];	/* sizeof(optional hdr)		*/
	char f_flags[2];	/* flags			*/
};

/* Bits for f_flags:
 *	F_RELFLG	relocation info stripped from file
 *	F_EXEC		file is executable (no unresolved external references)
 *	F_LNNO		line numbers stripped from file
 *	F_LSYMS		local symbols stripped from file
 *	F_AR32WR	file has byte ordering of an AR32WR machine (e.g. vax)
 */

#define F_RELFLG	(0x0001)
#define F_EXEC		(0x0002)
#define F_LNNO		(0x0004)
#define F_LSYMS		(0x0008)

/* made this one up by looking at the .o on the ppc nt box */
#define PPCMAGIC        0760

/* extra NT defines */
#define DOSMAGIC       0x5a4d
#define NT_SIGNATURE   0x00004550

#define PPCBADMAG(x) ((x).f_magic != PPCMAGIC) 

#define	FILHDR	struct external_filehdr
#define	FILHSZ	sizeof(FILHDR)


/********************** AOUT "OPTIONAL HEADER" **********************/


typedef struct 
{
  char 	magic[2];		/* type of file				*/
  char	vstamp[2];		/* version stamp			*/
  char	tsize[4];		/* text size in bytes, padded to FW bdry*/
  char	dsize[4];		/* initialized data "  "		*/
  char	bsize[4];		/* uninitialized data "   "		*/
  char	entry[4];		/* entry pt.				*/
  char 	text_start[4];		/* base of text used for this file */
  char 	data_start[4];		/* base of data used for this file */


}
AOUTHDR;


/* Blindly imported from coff-i386.h (krk) */

#define AOUTSZ (sizeof(AOUTHDR))

#define OMAGIC          0404    /* object files, eg as output */
#define ZMAGIC          0413    /* demand load format, eg normal ld output */
#define STMAGIC		0401	/* target shlib */
#define SHMAGIC		0443	/* host   shlib */


/* define some NT default values */
/*  #define NT_IMAGE_BASE        0x400000 moved to internal.h */
#define NT_SECTION_ALIGNMENT 0x1000
#define NT_FILE_ALIGNMENT    0x200  /* 0x1000 */  /* 0x200 */
#define NT_DEF_RESERVE       0x100000
#define NT_DEF_COMMIT        0x1000

/********************** SECTION HEADER **********************/


struct external_scnhdr {
	char		s_name[8];	/* section name			*/
	char		s_paddr[4];	/* physical address, aliased s_nlib */
	char		s_vaddr[4];	/* virtual address		*/
	char		s_size[4];	/* section size			*/
	char		s_scnptr[4];	/* file ptr to raw data for section */
	char		s_relptr[4];	/* file ptr to relocation	*/
	char		s_lnnoptr[4];	/* file ptr to line numbers	*/
	char		s_nreloc[2];	/* number of relocation entries	*/
	char		s_nlnno[2];	/* number of line number entries*/
	char		s_flags[4];	/* flags			*/
};

#define	SCNHDR	struct external_scnhdr
#define	SCNHSZ	sizeof(SCNHDR)

/*
 * names of "special" sections
 */
#define _TEXT	".text"
#define _DATA	".data"
#define _BSS	".bss"
#define _COMMENT ".comment"
#define _LIB ".lib"

/********************** LINE NUMBERS **********************/

/* 1 line number entry for every "breakpointable" source line in a section.
 * Line numbers are grouped on a per function basis; first entry in a function
 * grouping will have l_lnno = 0 and in place of physical address will be the
 * symbol table index of the function name.
 */
struct external_lineno {
	union {
		char l_symndx[4];	/* function name symbol index, iff l_lnno == 0*/
		char l_paddr[4];	/* (physical) address of line number	*/
	} l_addr;
	char l_lnno[2];	/* line number		*/
};


#define	LINENO	struct external_lineno
#define	LINESZ	6


/********************** SYMBOLS **********************/

#define E_SYMNMLEN	8	/* # characters in a symbol name	*/


/* Allow the file name length to be overridden */
#ifndef E_FILNMLEN
#define E_FILNMLEN	14	/* # characters in a file name		*/
#endif

#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */

struct external_syment 
{
  union {
    char e_name[E_SYMNMLEN];
    struct {
      char e_zeroes[4];
      char e_offset[4];
    } e;
  } e;
  char e_value[4];
  char e_scnum[2];
  char e_type[2];
  char e_sclass[1];
  char e_numaux[1];
};

#define N_BTMASK	(0xf)
#define N_TMASK		(0x30)
#define N_BTSHFT	(4)
#define N_TSHIFT	(2)
  
union external_auxent {
	struct {
		char x_tagndx[4];	/* str, un, or enum tag indx */
		union {
			struct {
			    char  x_lnno[2]; /* declaration line number */
			    char  x_size[2]; /* str/union/array size */
			} x_lnsz;
			char x_fsize[4];	/* size of function */
		} x_misc;
		union {
			struct {		/* if ISFCN, tag, or .bb */
			    char x_lnnoptr[4];	/* ptr to fcn line # */
			    char x_endndx[4];	/* entry ndx past block end */
			} x_fcn;
			struct {		/* if ISARY, up to 4 dimen. */
			    char x_dimen[E_DIMNUM][2];
			} x_ary;
		} x_fcnary;
		char x_tvndx[2];		/* tv index */
	} x_sym;

	union {
		char x_fname[E_FILNMLEN];
		struct {
			char x_zeroes[4];
			char x_offset[4];
		} x_n;
	} x_file;

	struct {
		char x_scnlen[4];	/* section length */
		char x_nreloc[2];	/* # relocation entries */
		char x_nlinno[2];	/* # line numbers */
	} x_scn;
};

#define	SYMENT	struct external_syment
#define	SYMESZ	18	
#define	AUXENT	union external_auxent
#define	AUXESZ	18


#	define _ETEXT	"etext"


/********************** RELOCATION DIRECTIVES **********************/


struct external_reloc {
  char r_vaddr[4];
  char r_symndx[4];
  char r_type[2];
};


#define RELOC struct external_reloc
#define RELSZ 10

#define DEFAULT_DATA_SECTION_ALIGNMENT 4
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
Commit	Line	Data
2cdeb832 KK	1	/*** coff information for the powerpc. */
	2
	3
	4	/******************** FILE HEADER ********************/
	5
	6	struct external_filehdr {
	7	char f_magic[2]; /* magic number */
	8	char f_nscns[2]; /* number of sections */
	9	char f_timdat[4]; /* time & date stamp */
	10	char f_symptr[4]; /* file pointer to symtab */
	11	char f_nsyms[4]; /* number of symtab entries */
	12	char f_opthdr[2]; /* sizeof(optional hdr) */
	13	char f_flags[2]; /* flags */
	14	};
	15
	16	/* Bits for f_flags:
	17	* F_RELFLG relocation info stripped from file
	18	* F_EXEC file is executable (no unresolved external references)
	19	* F_LNNO line numbers stripped from file
	20	* F_LSYMS local symbols stripped from file
	21	* F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax)
	22	*/
	23
	24	#define F_RELFLG (0x0001)
	25	#define F_EXEC (0x0002)
	26	#define F_LNNO (0x0004)
	27	#define F_LSYMS (0x0008)
	28
	29	/* made this one up by looking at the .o on the ppc nt box */
	30	#define PPCMAGIC 0760
	31
	32	/* extra NT defines */
	33	#define DOSMAGIC 0x5a4d
	34	#define NT_SIGNATURE 0x00004550
	35
	36	#define PPCBADMAG(x) ((x).f_magic != PPCMAGIC)
	37
	38	#define FILHDR struct external_filehdr
	39	#define FILHSZ sizeof(FILHDR)
	40
	41
	42	/******************** AOUT "OPTIONAL HEADER" ********************/
	43
	44
	45	typedef struct
	46	{
	47	char magic[2]; /* type of file */
	48	char vstamp[2]; /* version stamp */
	49	char tsize[4]; /* text size in bytes, padded to FW bdry*/
	50	char dsize[4]; /* initialized data " " */
	51	char bsize[4]; /* uninitialized data " " */
	52	char entry[4]; /* entry pt. */
	53	char text_start[4]; /* base of text used for this file */
	54	char data_start[4]; /* base of data used for this file */
	55
	56
	57	}
	58	AOUTHDR;
	59
	60
	61	/* Blindly imported from coff-i386.h (krk) */
	62
	63	#define AOUTSZ (sizeof(AOUTHDR))
	64
65	#define OMAGIC 0404 /* object files, eg as output */
66	#define ZMAGIC 0413 /* demand load format, eg normal ld output */
67	#define STMAGIC 0401 /* target shlib */
68	#define SHMAGIC 0443 /* host shlib */
69
70
71	/* define some NT default values */
72	/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
73	#define NT_SECTION_ALIGNMENT 0x1000
74	#define NT_FILE_ALIGNMENT 0x200 /* 0x1000 / / 0x200 */
75	#define NT_DEF_RESERVE 0x100000
76	#define NT_DEF_COMMIT 0x1000
77
78	/******************** SECTION HEADER ********************/
79
80
81	struct external_scnhdr {
82	char s_name[8]; /* section name */
83	char s_paddr[4]; /* physical address, aliased s_nlib */
84	char s_vaddr[4]; /* virtual address */
85	char s_size[4]; /* section size */
86	char s_scnptr[4]; /* file ptr to raw data for section */
87	char s_relptr[4]; /* file ptr to relocation */
88	char s_lnnoptr[4]; /* file ptr to line numbers */
89	char s_nreloc[2]; /* number of relocation entries */
90	char s_nlnno[2]; /* number of line number entries*/
91	char s_flags[4]; /* flags */
92	};
93
94	#define SCNHDR struct external_scnhdr
95	#define SCNHSZ sizeof(SCNHDR)
96
97	/*
98	* names of "special" sections
99	*/
100	#define _TEXT ".text"
101	#define _DATA ".data"
102	#define _BSS ".bss"
103	#define _COMMENT ".comment"
104	#define _LIB ".lib"
105
106	/******************** LINE NUMBERS ********************/
107
108	/* 1 line number entry for every "breakpointable" source line in a section.
109	* Line numbers are grouped on a per function basis; first entry in a function
110	* grouping will have l_lnno = 0 and in place of physical address will be the
111	* symbol table index of the function name.
112	*/
113	struct external_lineno {
114	union {
115	char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
116	char l_paddr[4]; /* (physical) address of line number */
117	} l_addr;
118	char l_lnno[2]; /* line number */
119	};
120
121
122	#define LINENO struct external_lineno
123	#define LINESZ 6
124
125
126	/******************** SYMBOLS ********************/
127
128	#define E_SYMNMLEN 8 /* # characters in a symbol name */
129
130
131	/* Allow the file name length to be overridden */
132	#ifndef E_FILNMLEN
133	#define E_FILNMLEN 14 /* # characters in a file name */
134	#endif
135
136	#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
137
138	struct external_syment
139	{
140	union {
141	char e_name[E_SYMNMLEN];
142	struct {
143	char e_zeroes[4];
144	char e_offset[4];
145	} e;
146	} e;
147	char e_value[4];
148	char e_scnum[2];
149	char e_type[2];
150	char e_sclass[1];
151	char e_numaux[1];
152	};
153
154	#define N_BTMASK (0xf)
155	#define N_TMASK (0x30)
156	#define N_BTSHFT (4)
157	#define N_TSHIFT (2)
158
159	union external_auxent {
160	struct {
161	char x_tagndx[4]; /* str, un, or enum tag indx */
162	union {
163	struct {
164	char x_lnno[2]; /* declaration line number */
165	char x_size[2]; /* str/union/array size */
166	} x_lnsz;
167	char x_fsize[4]; /* size of function */
168	} x_misc;
169	union {
170	struct { /* if ISFCN, tag, or .bb */
171	char x_lnnoptr[4]; /* ptr to fcn line # */
172	char x_endndx[4]; /* entry ndx past block end */
173	} x_fcn;
174	struct { /* if ISARY, up to 4 dimen. */
175	char x_dimen[E_DIMNUM][2];
176	} x_ary;
177	} x_fcnary;
178	char x_tvndx[2]; /* tv index */
179	} x_sym;
180
181	union {
182	char x_fname[E_FILNMLEN];
183	struct {
184	char x_zeroes[4];
185	char x_offset[4];
186	} x_n;
187	} x_file;
188
189	struct {
190	char x_scnlen[4]; /* section length */
191	char x_nreloc[2]; /* # relocation entries */
192	char x_nlinno[2]; /* # line numbers */
193	} x_scn;
194	};
195
196	#define SYMENT struct external_syment
197	#define SYMESZ 18
198	#define AUXENT union external_auxent
199	#define AUXESZ 18
200
201
202	# define _ETEXT "etext"
203
204
205	/******************** RELOCATION DIRECTIVES ********************/
206
207
208
209	struct external_reloc {
210	char r_vaddr[4];
211	char r_symndx[4];
212	char r_type[2];
213	};
214
215
216	#define RELOC struct external_reloc
217	#define RELSZ 10
218
219	#define DEFAULT_DATA_SECTION_ALIGNMENT 4
220	#define DEFAULT_BSS_SECTION_ALIGNMENT 4
221	#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
222	/* For new sections we havn't heard of before */
223	#define DEFAULT_SECTION_ALIGNMENT 4