Fri Jan 8 16:19:26 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
* ecoff-ext.h: Added prototypes for ECOFF swapping functions. * internal.h (internal_scnhdr): Always provide s_align field, not just on i960. (internal_reloc): Always provide r_size field, not just on RS/6000. * mips.h (_RDATA, _SDATA, _SBSS, _LIT4, _LIT8, STYP_RDATA, STYP_SDATA, STYP_SBSS, STYP_LIT4, STYP_LIT8): Defined. (CODE_MASK, MIPS_IS_STAB, MIPS_MARK_STAB, MIPS_UNMARK_STAB, STABS_SYMBOL): Moved in from gdb/mipsread.c.
This commit is contained in:
Ian Lance Taylor
parent
6082cdd566
commit
57115f09a8
4 changed files with 392 additions and 203 deletions
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@ -1,3 +1,42 @@
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Fri Jan 8 16:19:26 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
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* ecoff-ext.h: Added prototypes for ECOFF swapping functions.
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* internal.h (internal_scnhdr): Always provide s_align field, not
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just on i960.
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(internal_reloc): Always provide r_size field, not just on
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RS/6000.
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* mips.h (_RDATA, _SDATA, _SBSS, _LIT4, _LIT8, STYP_RDATA,
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STYP_SDATA, STYP_SBSS, STYP_LIT4, STYP_LIT8): Defined.
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(CODE_MASK, MIPS_IS_STAB, MIPS_MARK_STAB, MIPS_UNMARK_STAB,
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STABS_SYMBOL): Moved in from gdb/mipsread.c.
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Wed Jan 6 14:01:46 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
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* i386.h, we32k.h: removed STYP_* defines, since they duplicated
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those in internal.h.
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Tue Dec 29 15:40:07 1992 Ian Lance Taylor (ian@cygnus.com)
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* i386.h: define I386AIXMAGIC for Danbury AIX PS/2 compiler.
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Sat Dec 12 16:07:57 1992 Ian Lance Taylor (ian@cygnus.com)
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* i386.h: don't define BTYPE, ISPTR, ISFCN, ISARY, DECREF: they
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are defined in internal.h.
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Thu Nov 12 09:52:01 1992 Steve Chamberlain (sac@thepub.cygnus.com)
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* internal.h: (internal_reloc): r_offset is now a long.
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* z8k.h: slight comment enhancement
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Wed Sep 30 07:46:08 1992 Steve Chamberlain (sac@thepub.cygnus.com)
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* internal.h: changed z8k reloc types
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Fri Aug 28 10:16:31 1992 Brendan Kehoe (brendan@cygnus.com)
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* we32k.h: new file
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Thu Aug 27 13:00:01 1992 Brendan Kehoe (brendan@cygnus.com)
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* symconst.h: comment out cruft at the end of #endif
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@ -278,8 +278,8 @@ union aux_ext {
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};
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/* FIXME! These are copied from ../bfd/libbfd.h */
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PROTO (bfd_vma, _do_getb32, (unsigned char *addr));
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PROTO (bfd_vma, _do_getl32, (unsigned char *addr));
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extern bfd_vma _do_getb32 PARAMS ((unsigned char *addr));
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extern bfd_vma _do_getl32 PARAMS ((unsigned char *addr));
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#define AUX_GET_DNLOW(bigend, ax) (bigend? _do_getb32 ((ax)->a_dnLow): \
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_do_getl32 ((ax)->a_dnLow))
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@ -299,3 +299,15 @@ PROTO (bfd_vma, _do_getl32, (unsigned char *addr));
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struct rfd_ext {
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unsigned char rfd[4];
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};
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/* Prototypes for the swapping functions. These require that sym.h be
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included before this file. */
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extern void ecoff_swap_hdr_in PARAMS ((bfd *, struct hdr_ext *, HDRR *));
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extern void ecoff_swap_fdr_in PARAMS ((bfd *, struct fdr_ext *, FDR *));
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extern void ecoff_swap_pdr_in PARAMS ((bfd *, struct pdr_ext *, PDR *));
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extern void ecoff_swap_sym_in PARAMS ((bfd *, struct sym_ext *, SYMR *));
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extern void ecoff_swap_ext_in PARAMS ((bfd *, struct ext_ext *, EXTR *));
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extern void ecoff_swap_tir_in PARAMS ((int bigend, struct tir_ext *, TIR *));
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extern void ecoff_swap_rndx_in PARAMS ((int bigend, struct rndx_ext *,
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RNDXR *));
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extern void ecoff_swap_rfd_in PARAMS ((bfd *, struct rfd_ext *, RFDT *));
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@ -4,20 +4,20 @@
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/* First, make "signed char" work, even on old compilers. */
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#ifndef signed
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#ifndef __STDC__
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#define signed /**/
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#define signed /**/
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#endif
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#endif
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/********************** FILE HEADER **********************/
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struct internal_filehdr
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struct internal_filehdr
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{
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unsigned short f_magic; /* magic number */
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unsigned short f_nscns; /* number of sections */
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long f_timdat; /* time & date stamp */
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long f_symptr; /* file pointer to symtab */
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long f_nsyms; /* number of symtab entries */
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unsigned short f_opthdr; /* sizeof(optional hdr) */
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unsigned short f_flags; /* flags */
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unsigned short f_magic; /* magic number */
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unsigned short f_nscns; /* number of sections */
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long f_timdat; /* time & date stamp */
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long f_symptr; /* file pointer to symtab */
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long f_nsyms; /* number of symtab entries */
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unsigned short f_opthdr; /* sizeof(optional hdr) */
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unsigned short f_flags; /* flags */
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};
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/* Bits for f_flags:
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@ -43,31 +43,32 @@ struct internal_filehdr
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#define F_SHROBJ (0x2000)
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/********************** AOUT "OPTIONAL HEADER" **********************/
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struct internal_aouthdr {
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short magic; /* type of file */
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short vstamp; /* version stamp */
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unsigned long tsize; /* text size in bytes, padded to FW bdry*/
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unsigned long dsize; /* initialized data " " */
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unsigned long bsize; /* uninitialized data " " */
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unsigned long entry; /* entry pt. */
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unsigned long text_start; /* base of text used for this file */
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unsigned long data_start; /* base of data used for this file */
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struct internal_aouthdr
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{
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short magic; /* type of file */
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short vstamp; /* version stamp */
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unsigned long tsize; /* text size in bytes, padded to FW bdry*/
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unsigned long dsize; /* initialized data " " */
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unsigned long bsize; /* uninitialized data " " */
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unsigned long entry; /* entry pt. */
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unsigned long text_start; /* base of text used for this file */
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unsigned long data_start; /* base of data used for this file */
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/* i960 stuff */
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unsigned long tagentries; /* number of tag entries to follow */
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/* i960 stuff */
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unsigned long tagentries; /* number of tag entries to follow */
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/* RS/6000 stuff */
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unsigned long o_toc; /* address of TOC */
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short o_snentry; /* section number for entry point */
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short o_sntext; /* section number for text */
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short o_sndata; /* section number for data */
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short o_sntoc; /* section number for toc */
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short o_snloader; /* section number for loader section */
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short o_snbss; /* section number for bss */
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short o_algntext; /* max alignment for text */
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short o_algndata; /* max alignment for data */
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short o_modtype; /* Module type field, 1R,RE,RO */
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unsigned long o_maxstack; /* max stack size allowed. */
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/* RS/6000 stuff */
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unsigned long o_toc; /* address of TOC */
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short o_snentry; /* section number for entry point */
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short o_sntext; /* section number for text */
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short o_sndata; /* section number for data */
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short o_sntoc; /* section number for toc */
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short o_snloader; /* section number for loader section */
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short o_snbss; /* section number for bss */
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short o_algntext; /* max alignment for text */
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short o_algndata; /* max alignment for data */
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short o_modtype; /* Module type field, 1R,RE,RO */
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unsigned long o_maxstack; /* max stack size allowed. */
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};
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/********************** STORAGE CLASSES **********************/
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@ -102,25 +103,25 @@ struct internal_aouthdr {
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#define C_ALIAS 105 /* duplicate tag */
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#define C_HIDDEN 106 /* ext symbol in dmert public lib */
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/* New storage classes for 80960 */
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/* New storage classes for 80960 */
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/* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */
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#define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */
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#define C_SCALL 107 /* Procedure reachable via system call */
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#define C_LEAFEXT 108 /* External leaf */
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#define C_LEAFSTAT 113 /* Static leaf */
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#define C_LEAFSTAT 113 /* Static leaf */
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#define C_OPTVAR 109 /* Optimized variable */
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#define C_DEFINE 110 /* Preprocessor #define */
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#define C_PRAGMA 111 /* Advice to compiler or linker */
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#define C_SEGMENT 112 /* 80960 segment name */
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/* New storage classes for RS/6000 */
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#define C_HIDEXT 107 /* Un-named external symbol */
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#define C_BINCL 108 /* Marks beginning of include file */
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#define C_EINCL 109 /* Marks ending of include file */
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/* New storage classes for RS/6000 */
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#define C_HIDEXT 107 /* Un-named external symbol */
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#define C_BINCL 108 /* Marks beginning of include file */
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#define C_EINCL 109 /* Marks ending of include file */
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/* storage classes for stab symbols for RS/6000 */
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/* storage classes for stab symbols for RS/6000 */
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#define C_GSYM ((signed char)0x80)
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#define C_LSYM ((signed char)0x81)
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#define C_PSYM ((signed char)0x82)
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@ -138,46 +139,48 @@ struct internal_aouthdr {
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#define C_ESTAT ((signed char)0x90)
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/********************** SECTION HEADER **********************/
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struct internal_scnhdr {
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char s_name[8]; /* section name */
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long s_paddr; /* physical address, aliased s_nlib */
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long s_vaddr; /* virtual address */
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long s_size; /* section size */
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long s_scnptr; /* file ptr to raw data for section */
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long s_relptr; /* file ptr to relocation */
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long s_lnnoptr; /* file ptr to line numbers */
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unsigned long s_nreloc; /* number of relocation entries */
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unsigned long s_nlnno; /* number of line number entries*/
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long s_flags; /* flags */
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#ifdef I960
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long s_align;
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#endif
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struct internal_scnhdr
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{
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char s_name[8]; /* section name */
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long s_paddr; /* physical address, aliased s_nlib */
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long s_vaddr; /* virtual address */
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long s_size; /* section size */
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long s_scnptr; /* file ptr to raw data for section */
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long s_relptr; /* file ptr to relocation */
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long s_lnnoptr; /* file ptr to line numbers */
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unsigned long s_nreloc; /* number of relocation entries */
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unsigned long s_nlnno; /* number of line number entries*/
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long s_flags; /* flags */
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long s_align; /* used on I960 */
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};
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/*
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* s_flags "type"
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*/
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#define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */
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#define STYP_DSECT (0x0001) /* "dummy": relocated only*/
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#define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */
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#define STYP_GROUP (0x0004) /* "grouped": formed of input sections */
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#define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */
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#define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated,
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loaded; reloc & lineno entries processed normally */
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#define STYP_TEXT (0x0020) /* section contains text only */
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#define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
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will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
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update all process invocations. */
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#define STYP_DATA (0x0040) /* section contains data only */
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#define STYP_BSS (0x0080) /* section contains bss only */
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#define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
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#define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */
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#define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */
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#define STYP_LIB (0x0800) /* for .lib: same as INFO */
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#define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */
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#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
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word of contiguous bytes beginning on a word boundary. */
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#define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */
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#define STYP_DSECT (0x0001) /* "dummy": relocated only*/
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#define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */
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#define STYP_GROUP (0x0004) /* "grouped": formed of input sections */
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#define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */
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#define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated,
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loaded; reloc & lineno entries processed normally */
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#define STYP_TEXT (0x0020) /* section contains text only */
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#define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
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will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
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update all process invocations. */
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#define STYP_DATA (0x0040) /* section contains data only */
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#define STYP_BSS (0x0080) /* section contains bss only */
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#define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
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#define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */
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#define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */
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#define STYP_LIB (0x0800) /* for .lib: same as INFO */
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#define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */
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#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
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word of contiguous bytes
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beginning on a word boundary. */
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#define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */
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/********************** LINE NUMBERS **********************/
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/* 1 line number entry for every "breakpointable" source line in a section.
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@ -186,37 +189,42 @@ struct internal_scnhdr {
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* symbol table index of the function name.
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*/
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struct internal_lineno {
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union {
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long l_symndx; /* function name symbol index, iff l_lnno == 0*/
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long l_paddr; /* (physical) address of line number */
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} l_addr;
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unsigned long l_lnno; /* line number */
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struct internal_lineno
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{
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union
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{
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long l_symndx; /* function name symbol index, iff l_lnno == 0*/
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long l_paddr; /* (physical) address of line number */
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} l_addr;
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unsigned long l_lnno; /* line number */
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};
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/********************** SYMBOLS **********************/
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#define SYMNMLEN 8 /* # characters in a symbol name */
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#define FILNMLEN 14 /* # characters in a file name */
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#define DIMNUM 4 /* # array dimensions in auxiliary entry */
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struct internal_syment {
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union {
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char _n_name[SYMNMLEN]; /* old COFF version */
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struct {
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long _n_zeroes; /* new == 0 */
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long _n_offset; /* offset into string table */
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} _n_n;
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char *_n_nptr[2]; /* allows for overlaying */
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} _n;
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long n_value; /* value of symbol */
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short n_scnum; /* section number */
|
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unsigned short n_flags; /* copy of flags from filhdr */
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unsigned short n_type; /* type and derived type */
|
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signed char n_sclass; /* storage class */
|
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char n_numaux; /* number of aux. entries */
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struct internal_syment
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{
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union
|
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{
|
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char _n_name[SYMNMLEN]; /* old COFF version */
|
||||
struct
|
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{
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long _n_zeroes; /* new == 0 */
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long _n_offset; /* offset into string table */
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} _n_n;
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char *_n_nptr[2]; /* allows for overlaying */
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} _n;
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long n_value; /* value of symbol */
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short n_scnum; /* section number */
|
||||
unsigned short n_flags; /* copy of flags from filhdr */
|
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unsigned short n_type; /* type and derived type */
|
||||
signed char n_sclass; /* storage class */
|
||||
char n_numaux; /* number of aux. entries */
|
||||
};
|
||||
|
||||
#define n_name _n._n_name
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#define n_zeroes _n._n_n._n_zeroes
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#define n_offset _n._n_n._n_offset
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|
|
@ -225,11 +233,11 @@ struct internal_syment {
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/* Relocatable symbols have number of the section in which they are defined,
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or one of the following: */
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|
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#define N_UNDEF ((short)0) /* undefined symbol */
|
||||
#define N_ABS ((short)-1) /* value of symbol is absolute */
|
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#define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */
|
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#define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */
|
||||
#define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/
|
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#define N_UNDEF ((short)0) /* undefined symbol */
|
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#define N_ABS ((short)-1) /* value of symbol is absolute */
|
||||
#define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */
|
||||
#define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */
|
||||
#define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/
|
||||
|
||||
/*
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* Type of a symbol, in low N bits of the word
|
||||
|
|
@ -269,140 +277,152 @@ struct internal_syment {
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#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
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|
||||
|
||||
union internal_auxent
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||||
union internal_auxent
|
||||
{
|
||||
struct {
|
||||
struct
|
||||
{
|
||||
|
||||
union {
|
||||
union
|
||||
{
|
||||
long l; /* str, un, or enum tag indx */
|
||||
struct coff_ptr_struct *p;
|
||||
} x_tagndx;
|
||||
} x_tagndx;
|
||||
|
||||
union {
|
||||
struct {
|
||||
union
|
||||
{
|
||||
struct
|
||||
{
|
||||
unsigned short x_lnno; /* declaration line number */
|
||||
unsigned short x_size; /* str/union/array size */
|
||||
} x_lnsz;
|
||||
} x_lnsz;
|
||||
long x_fsize; /* size of function */
|
||||
} x_misc;
|
||||
} x_misc;
|
||||
|
||||
union {
|
||||
struct { /* if ISFCN, tag, or .bb */
|
||||
union
|
||||
{
|
||||
struct
|
||||
{ /* if ISFCN, tag, or .bb */
|
||||
long x_lnnoptr; /* ptr to fcn line # */
|
||||
union { /* entry ndx past block end */
|
||||
long l;
|
||||
union
|
||||
{ /* entry ndx past block end */
|
||||
long l;
|
||||
struct coff_ptr_struct *p;
|
||||
} x_endndx;
|
||||
} x_fcn;
|
||||
} x_endndx;
|
||||
} x_fcn;
|
||||
|
||||
struct { /* if ISARY, up to 4 dimen. */
|
||||
struct
|
||||
{ /* if ISARY, up to 4 dimen. */
|
||||
unsigned short x_dimen[DIMNUM];
|
||||
} x_ary;
|
||||
} x_fcnary;
|
||||
} x_ary;
|
||||
} x_fcnary;
|
||||
|
||||
unsigned short x_tvndx; /* tv index */
|
||||
} x_sym;
|
||||
} x_sym;
|
||||
|
||||
union {
|
||||
union
|
||||
{
|
||||
char x_fname[FILNMLEN];
|
||||
struct {
|
||||
struct
|
||||
{
|
||||
long x_zeroes;
|
||||
long x_offset;
|
||||
} x_n;
|
||||
} x_file;
|
||||
} x_n;
|
||||
} x_file;
|
||||
|
||||
struct {
|
||||
struct
|
||||
{
|
||||
long x_scnlen; /* section length */
|
||||
unsigned short x_nreloc; /* # relocation entries */
|
||||
unsigned short x_nlinno; /* # line numbers */
|
||||
} x_scn;
|
||||
} x_scn;
|
||||
|
||||
struct {
|
||||
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)) */
|
||||
struct
|
||||
{
|
||||
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)) */
|
||||
|
||||
/******************************************
|
||||
* 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 */
|
||||
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" */
|
||||
#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 */
|
||||
#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 */
|
||||
#define XMC_TC0 15 /* Read-write TOC anchor for TOC addressability */
|
||||
|
||||
|
||||
/******************************************
|
||||
* I960-specific *2nd* aux. entry formats
|
||||
******************************************/
|
||||
struct {
|
||||
struct
|
||||
{
|
||||
/* This is a very old typo that keeps getting propagated. */
|
||||
#define x_stdindx x_stindx
|
||||
long x_stindx; /* sys. table entry */
|
||||
} x_sc; /* system call entry */
|
||||
} x_sc; /* system call entry */
|
||||
|
||||
struct {
|
||||
struct
|
||||
{
|
||||
unsigned long x_balntry; /* BAL entry point */
|
||||
} x_bal; /* BAL-callable function */
|
||||
} x_bal; /* BAL-callable function */
|
||||
|
||||
struct {
|
||||
unsigned long x_timestamp; /* time stamp */
|
||||
char x_idstring[20]; /* producer identity string */
|
||||
} x_ident; /* Producer ident info */
|
||||
struct
|
||||
{
|
||||
unsigned long x_timestamp; /* time stamp */
|
||||
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 RS6000COFF_C
|
||||
unsigned char r_size;
|
||||
#endif
|
||||
|
||||
unsigned short r_offset;
|
||||
long r_vaddr; /* Virtual address of reference */
|
||||
long r_symndx; /* Index into symbol table */
|
||||
unsigned short r_type; /* Relocation type */
|
||||
unsigned char r_size; /* Used on RS/6000 */
|
||||
unsigned long r_offset;
|
||||
|
||||
};
|
||||
|
||||
|
|
@ -435,27 +455,24 @@ struct internal_reloc
|
|||
#define R_GETPA (0x1e)
|
||||
#define R_TAGWORD (0x1f)
|
||||
#define R_JUMPTARG 0x20 /* strange 29k 00xx00xx reloc */
|
||||
#define R_MOVB1 0x41 /* Special h8 16bit or 8 bit reloc for mov.b */
|
||||
#define R_MOVB2 0x42 /* Special h8 opcode for 8bit which could
|
||||
be 16 */
|
||||
#define R_JMP1 0x43 /* Special h8 16bit jmp which could be
|
||||
pcrel */
|
||||
#define R_JMP2 0x44 /* a branch which used to be a jmp */
|
||||
#define R_MOVB1 0x41 /* Special h8 16bit or 8 bit reloc for mov.b */
|
||||
#define R_MOVB2 0x42 /* Special h8 opcode for 8bit which could
|
||||
be 16 */
|
||||
#define R_JMP1 0x43 /* Special h8 16bit jmp which could be
|
||||
pcrel */
|
||||
#define R_JMP2 0x44 /* a branch which used to be a jmp */
|
||||
#define R_RELLONG_NEG 0x45
|
||||
|
||||
|
||||
/* Z8k modes */
|
||||
#define R_DA 0x01 /* Absolute direct address */
|
||||
#define R_CALL 0x02 /* Absolute address which could be a callr */
|
||||
#define R_JP 0x03 /* Absolute address which could be a jp */
|
||||
#define R_REL16 0x04 /* 16 bit PC rel */
|
||||
|
||||
#define R_CALLR 0x05 /* callr 12 bit disp */
|
||||
#define R_JR 0x06 /* jr 8 bit disp */
|
||||
#define R_SEG 0x10 /* set if in segmented mode */
|
||||
|
||||
#define R_IMM16 0x20 /* 16 bit abs */
|
||||
#define R_IMM32 0x21 /* 32 bit abs */
|
||||
#define R_IMM8 0x22 /* 8 bit abs */
|
||||
#define R_IMM4L 0x23 /* low nibble */
|
||||
#define R_IMM4H 0x24 /* high nibble */
|
||||
#define R_DA 0x01 /* 16 bit Absolute direct address */
|
||||
#define R_JR 0x02 /* jr 8 bit disp */
|
||||
#define R_IMM4L 0x23 /* low nibble */
|
||||
#define R_IMM8 0x22 /* 8 bit abs */
|
||||
#define R_IMM32 0x21 /* 32 bit abs */
|
||||
#define R_CALL R_DA /* Absolute address which could be a callr */
|
||||
#define R_JP R_DA /* Absolute address which could be a jp */
|
||||
#define R_REL16 0x04 /* 16 bit PC rel */
|
||||
#define R_CALLR 0x05 /* callr 12 bit disp */
|
||||
#define R_SEG 0x10 /* set if in segmented mode */
|
||||
#define R_IMM4H 0x24 /* high nibble */
|
||||
|
|
|
|||
121
include/coff/mips.h
Normal file
121
include/coff/mips.h
Normal file
|
|
@ -0,0 +1,121 @@
|
|||
/* Rudimentary ECOFF support on MIPS machines.
|
||||
This lacks symbol information, normally provided on MIPS Unix systems
|
||||
in the files <sym.h> and <symconst.h>. */
|
||||
|
||||
/********************** FILE HEADER **********************/
|
||||
|
||||
struct external_filehdr {
|
||||
unsigned char f_magic[2]; /* magic number */
|
||||
unsigned char f_nscns[2]; /* number of sections */
|
||||
unsigned char f_timdat[4]; /* time & date stamp */
|
||||
unsigned char f_symptr[4]; /* file pointer to symtab */
|
||||
unsigned char f_nsyms[4]; /* number of symtab entries */
|
||||
unsigned char f_opthdr[2]; /* sizeof(optional hdr) */
|
||||
unsigned char f_flags[2]; /* flags */
|
||||
};
|
||||
|
||||
|
||||
/* Mips magics */
|
||||
#define MIPS_MAGIC_1 0x0180
|
||||
#define MIPS_MAGIC_2 0x0162
|
||||
#define MIPS_MAGIC_3 0x0160
|
||||
|
||||
#define ECOFFBADMAG(x) (((x).f_magic!=MIPS_MAGIC_1) && \
|
||||
((x).f_magic!=MIPS_MAGIC_2) &&\
|
||||
((x).f_magic!=MIPS_MAGIC_3))
|
||||
|
||||
|
||||
#define FILHDR struct external_filehdr
|
||||
#define FILHSZ 20
|
||||
|
||||
/********************** AOUT "OPTIONAL HEADER" **********************/
|
||||
|
||||
|
||||
typedef struct external_aouthdr
|
||||
{
|
||||
unsigned char magic[2]; /* type of file */
|
||||
unsigned char vstamp[2]; /* version stamp */
|
||||
unsigned char tsize[4]; /* text size in bytes, padded to FW bdry*/
|
||||
unsigned char dsize[4]; /* initialized data " " */
|
||||
unsigned char bsize[4]; /* uninitialized data " " */
|
||||
unsigned char entry[4]; /* entry pt. */
|
||||
unsigned char text_start[4]; /* base of text used for this file */
|
||||
unsigned char data_start[4]; /* base of data used for this file */
|
||||
} AOUTHDR;
|
||||
|
||||
/* compute size of a header */
|
||||
|
||||
#define AOUTSZ (sizeof(AOUTHDR))
|
||||
|
||||
|
||||
/********************** SECTION HEADER **********************/
|
||||
|
||||
struct external_scnhdr {
|
||||
unsigned char s_name[8]; /* section name */
|
||||
unsigned char s_paddr[4]; /* physical address, aliased s_nlib */
|
||||
unsigned char s_vaddr[4]; /* virtual address */
|
||||
unsigned char s_size[4]; /* section size */
|
||||
unsigned char s_scnptr[4]; /* file ptr to raw data for section */
|
||||
unsigned char s_relptr[4]; /* file ptr to relocation */
|
||||
unsigned char s_lnnoptr[4]; /* file ptr to line numbers */
|
||||
unsigned char s_nreloc[2]; /* number of relocation entries */
|
||||
unsigned char s_nlnno[2]; /* number of line number entries*/
|
||||
unsigned 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 _RDATA ".rdata"
|
||||
#define _SDATA ".sdata"
|
||||
#define _SBSS ".sbss"
|
||||
#define _LIT4 ".lit4"
|
||||
#define _LIT8 ".lit8"
|
||||
|
||||
#define DEFAULT_DATA_SECTION_ALIGNMENT 4
|
||||
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
|
||||
#define DEFAULT_TEXT_SECTION_ALIGNMENT 16
|
||||
/* For new sections we havn't heard of before */
|
||||
#define DEFAULT_SECTION_ALIGNMENT 4
|
||||
|
||||
/* MIPS ECOFF uses some additional section types. */
|
||||
#define STYP_RDATA 0x100
|
||||
#define STYP_SDATA 0x200
|
||||
#define STYP_SBSS 0x400
|
||||
#define STYP_LIT8 0x8000000
|
||||
#define STYP_LIT4 0x10000000
|
||||
|
||||
/* I don't know when this is used. */
|
||||
#define STYP_OTHER_LOAD 0x80000000
|
||||
|
||||
/********************** RELOCATION DIRECTIVES **********************/
|
||||
|
||||
struct external_reloc {
|
||||
unsigned char r_vaddr[4];
|
||||
unsigned char r_symndx[4];
|
||||
unsigned char r_type[2];
|
||||
unsigned char pad[2];
|
||||
};
|
||||
|
||||
|
||||
/* Relevent values for r_type and ecoff. Would someone please document them */
|
||||
|
||||
#define RELOC struct external_reloc
|
||||
#define RELSZ 12
|
||||
|
||||
/* gcc uses mips-tfile to output type information in special stabs
|
||||
entries. These must match the corresponding definition in
|
||||
gcc/config/mips.h. At some point, these should probably go into a
|
||||
shared include file, but currently gcc and gdb do not share any
|
||||
directories. */
|
||||
#define CODE_MASK 0x8F300
|
||||
#define MIPS_IS_STAB(sym) (((sym)->index & 0xFFF00) == CODE_MASK)
|
||||
#define MIPS_MARK_STAB(code) ((code)+CODE_MASK)
|
||||
#define MIPS_UNMARK_STAB(code) ((code)-CODE_MASK)
|
||||
#define STABS_SYMBOL "@stabs"
|
||||
Loading…
Add table
Reference in a new issue