+/* Internal format of COFF object file data structures, for GNU BFD.
+ This file is part of BFD, the Binary File Descriptor library. */
+
+/* First, make "signed char" work, even on old compilers. */
+#ifndef signed
+#ifndef __STDC__
+#define signed /**/
+#endif
+#endif
+
/********************** FILE HEADER **********************/
struct internal_filehdr
{
* 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)
+ * F_AR16WR file is 16-bit little-endian
+ * F_AR32WR file is 32-bit little-endian
+ * F_AR32W file is 32-bit big-endian
+ * F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports
+ * F_SHROBJ rs/6000 aix: file is a shared object
*/
-#define F_RELFLG (0x0001)
-#define F_EXEC (0x0002)
-#define F_LNNO (0x0004)
-#define F_LSYMS (0x0008)
-#define F_AR32WR (0x0010)
-#define F_AR32W 0x200
+#define F_RELFLG (0x0001)
+#define F_EXEC (0x0002)
+#define F_LNNO (0x0004)
+#define F_LSYMS (0x0008)
+#define F_AR16WR (0x0080)
+#define F_AR32WR (0x0100)
+#define F_AR32W (0x0200)
+#define F_DYNLOAD (0x1000)
+#define F_SHROBJ (0x2000)
+
/********************** AOUT "OPTIONAL HEADER" **********************/
struct internal_aouthdr {
short magic; /* type of file */
unsigned long entry; /* entry pt. */
unsigned long text_start; /* base of text used for this file */
unsigned long data_start; /* base of data used for this file */
+
+ /* i960 stuff */
unsigned long tagentries; /* number of tag entries to follow */
-} ;
+
+ /* RS/6000 stuff */
+ unsigned long o_toc; /* address of TOC */
+ short o_snentry; /* section number for entry point */
+ short o_sntext; /* section number for text */
+ short o_sndata; /* section number for data */
+ short o_sntoc; /* section number for toc */
+ short o_snloader; /* section number for loader section */
+ short o_snbss; /* section number for bss */
+ short o_algntext; /* max alignment for text */
+ short o_algndata; /* max alignment for data */
+ short o_modtype; /* Module type field, 1R,RE,RO */
+ unsigned long o_maxstack; /* max stack size allowed. */
+};
/********************** STORAGE CLASSES **********************/
#define C_PRAGMA 111 /* Advice to compiler or linker */
#define C_SEGMENT 112 /* 80960 segment name */
+ /* New storage classes for RS/6000 */
+#define C_HIDEXT 107 /* Un-named external symbol */
+#define C_BINCL 108 /* Marks beginning of include file */
+#define C_EINCL 109 /* Marks ending of include file */
+
+ /* storage classes for stab symbols for RS/6000 */
+#define C_GSYM ((signed char)0x80)
+#define C_LSYM ((signed char)0x81)
+#define C_PSYM ((signed char)0x82)
+#define C_RSYM ((signed char)0x83)
+#define C_RPSYM ((signed char)0x84)
+#define C_STSYM ((signed char)0x85)
+#define C_TCSYM ((signed char)0x86)
+#define C_BCOMM ((signed char)0x87)
+#define C_ECOML ((signed char)0x88)
+#define C_ECOMM ((signed char)0x89)
+#define C_DECL ((signed char)0x8c)
+#define C_ENTRY ((signed char)0x8d)
+#define C_FUN ((signed char)0x8e)
+#define C_BSTAT ((signed char)0x8f)
+#define C_ESTAT ((signed char)0x90)
+
/********************** SECTION HEADER **********************/
struct internal_scnhdr {
char s_name[8]; /* section name */
long s_scnptr; /* file ptr to raw data for section */
long s_relptr; /* file ptr to relocation */
long s_lnnoptr; /* file ptr to line numbers */
-#ifdef M88
- unsigned long s_nreloc;
- unsigned long s_nlnno;
-#else
- unsigned short s_nreloc; /* number of relocation entries */
- unsigned short s_nlnno; /* number of line number entries*/
-#endif
+ unsigned long s_nreloc; /* number of relocation entries */
+ unsigned long s_nlnno; /* number of line number entries*/
long s_flags; /* flags */
#ifdef I960
long s_align;
long l_symndx; /* function name symbol index, iff l_lnno == 0*/
long l_paddr; /* (physical) address of line number */
} l_addr;
-#ifdef M88
unsigned long l_lnno; /* line number */
-#else
- unsigned short l_lnno; /* line number */
-#endif
};
short n_scnum; /* section number */
unsigned short n_flags; /* copy of flags from filhdr */
unsigned short n_type; /* type and derived type */
-#if __STDC__
- signed
-#endif
- char n_sclass; /* storage class */
+ signed char n_sclass; /* storage class */
char n_numaux; /* number of aux. entries */
};
+#define n_name _n._n_name
+#define n_zeroes _n._n_n._n_zeroes
+#define n_offset _n._n_n._n_offset
+
/* Relocatable symbols have number of the section in which they are defined,
or one of the following: */
union internal_auxent
{
struct {
+
union {
long l; /* str, un, or enum tag indx */
struct coff_ptr_struct *p;
} x_lnsz;
long x_fsize; /* size of function */
} x_misc;
- union {
+ union {
struct { /* if ISFCN, tag, or .bb */
long x_lnnoptr; /* ptr to fcn line # */
union { /* entry ndx past block end */
long l;
struct coff_ptr_struct *p;
-
} x_endndx;
-
-
} x_fcn;
+
struct { /* if ISARY, up to 4 dimen. */
unsigned short x_dimen[DIMNUM];
} x_ary;
} x_fcnary;
+
unsigned short x_tvndx; /* tv index */
} x_sym;
long x_tvfill; /* tv fill value */
unsigned short x_tvlen; /* length of .tv */
unsigned short x_tvran[2]; /* tv range */
- } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
+ } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
+
+ /******************************************
+ * RS/6000-specific auxent - last auxent for every external symbol
+ ******************************************/
+ struct {
+ long x_scnlen; /* csect length */
+ long x_parmhash; /* parm type hash index */
+ unsigned short x_snhash; /* sect num with parm hash */
+ unsigned char x_smtyp; /* symbol align and type */
+ /* 0-4 - Log 2 of alignment */
+ /* 5-7 - symbol type */
+ unsigned char x_smclas; /* storage mapping class */
+ long x_stab; /* dbx stab info index */
+ unsigned short x_snstab; /* sect num with dbx stab */
+ } x_csect; /* csect definition information */
+
+/* x_smtyp values: */
+
+#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */
+#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */
+/* Symbol type values: */
+#define XTY_ER 0 /* External reference */
+#define XTY_SD 1 /* Csect definition */
+#define XTY_LD 2 /* Label definition */
+#define XTY_CM 3 /* .BSS */
+#define XTY_EM 4 /* Error message */
+#define XTY_US 5 /* "Reserved for internal use" */
+
+/* x_smclas values: */
+
+#define XMC_PR 0 /* Read-only program code */
+#define XMC_RO 1 /* Read-only constant */
+#define XMC_DB 2 /* Read-only debug dictionary table */
+#define XMC_TC 3 /* Read-write general TOC entry */
+#define XMC_UA 4 /* Read-write unclassified */
+#define XMC_RW 5 /* Read-write data */
+#define XMC_GL 6 /* Read-only global linkage */
+#define XMC_XO 7 /* Read-only extended operation (simulated insn) */
+#define XMC_SV 8 /* Read-only supervisor call */
+#define XMC_BS 9 /* Read-write BSS */
+#define XMC_DS 10 /* Read-write descriptor csect */
+#define XMC_UC 11 /* Read-write unnamed Fortran common */
+#define XMC_TI 12 /* Read-only traceback index csect */
+#define XMC_TB 13 /* Read-only traceback table csect */
+/* 14 ??? */
+#define XMC_TC0 15 /* Read-write TOC anchor for TOC addressability */
+
/******************************************
* I960-specific *2nd* aux. entry formats
char x_idstring[20]; /* producer identity string */
} x_ident; /* Producer ident info */
-
};
/********************** RELOCATION DIRECTIVES **********************/
-struct internal_reloc {
+struct internal_reloc
+{
long r_vaddr; /* Virtual address of reference */
long r_symndx; /* Index into symbol table */
unsigned short r_type; /* Relocation type */
-#if M88
- unsigned short r_offset;
+
+#if RS6000COFF_C
+ unsigned char r_size;
#endif
+
+ unsigned short r_offset;
+
};
#define R_RELBYTE 017
#define R_GETSEG (0x1d)
#define R_GETPA (0x1e)
#define R_TAGWORD (0x1f)
+#define R_JUMPTARG 0x20 /* strange 29k 00xx00xx reloc */
projects / binutils.git / blobdiff