+/* Generic ECOFF support.
+ This does not include symbol information, found in sym.h and
+ symconst.h.
+
+ Copyright (C) 2001-2019 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
#ifndef ECOFF_H
#define ECOFF_H
-/* Generic ECOFF support.
- This does not include symbol information, found in sym.h and
- symconst.h. */
+#include "coff/sym.h"
/* Mips magic numbers used in filehdr. MIPS_MAGIC_LITTLE is used on
little endian machines. MIPS_MAGIC_BIG is used on big endian
#define MIPS_MAGIC_LITTLE 0x0162
#define MIPS_MAGIC_BIG 0x0160
+/* These are the magic numbers used for MIPS code compiled at ISA
+ level 2. */
+#define MIPS_MAGIC_LITTLE2 0x0166
+#define MIPS_MAGIC_BIG2 0x0163
+
+/* These are the magic numbers used for MIPS code compiled at ISA
+ level 3. */
+#define MIPS_MAGIC_LITTLE3 0x142
+#define MIPS_MAGIC_BIG3 0x140
+
/* Alpha magic numbers used in filehdr. */
#define ALPHA_MAGIC 0x183
+#define ALPHA_MAGIC_BSD 0x185
+/* A compressed version of an ALPHA_MAGIC file created by DEC's tools. */
+#define ALPHA_MAGIC_COMPRESSED 0x188
/* Magic numbers used in a.out header. */
#define ECOFF_AOUT_OMAGIC 0407 /* not demand paged (ld -N). */
#define _RDATA ".rdata"
#define _SDATA ".sdata"
#define _SBSS ".sbss"
+#define _LITA ".lita"
#define _LIT4 ".lit4"
#define _LIT8 ".lit8"
#define _LIB ".lib"
#define _INIT ".init"
+#define _FINI ".fini"
+#define _PDATA ".pdata"
+#define _XDATA ".xdata"
+#define _GOT ".got"
+#define _HASH ".hash"
+#define _DYNSYM ".dynsym"
+#define _DYNSTR ".dynstr"
+#define _RELDYN ".rel.dyn"
+#define _CONFLIC ".conflic"
+#define _COMMENT ".comment"
+#define _LIBLIST ".liblist"
+#define _DYNAMIC ".dynamic"
+#define _RCONST ".rconst"
/* ECOFF uses some additional section flags. */
-#define STYP_RDATA 0x100
-#define STYP_SDATA 0x200
-#define STYP_SBSS 0x400
-#define STYP_LIT8 0x8000000
-#define STYP_LIT4 0x10000000
+#define STYP_RDATA 0x100
+#define STYP_SDATA 0x200
+#define STYP_SBSS 0x400
+#define STYP_GOT 0x1000
+#define STYP_DYNAMIC 0x2000
+#define STYP_DYNSYM 0x4000
+#define STYP_RELDYN 0x8000
+#define STYP_DYNSTR 0x10000
+#define STYP_HASH 0x20000
+#define STYP_LIBLIST 0x40000
+#define STYP_CONFLIC 0x100000
+#define STYP_ECOFF_FINI 0x1000000
+#define STYP_EXTENDESC 0x2000000 /* 0x02FFF000 bits => scn type, rest clr */
+#define STYP_LITA 0x4000000
+#define STYP_LIT8 0x8000000
+#define STYP_LIT4 0x10000000
+#define STYP_ECOFF_LIB 0x40000000
#define STYP_ECOFF_INIT 0x80000000
-#define STYP_OTHER_LOAD STYP_ECOFF_INIT
+#define STYP_OTHER_LOAD (STYP_ECOFF_INIT | STYP_ECOFF_FINI)
+
+/* extended section types */
+#define STYP_COMMENT 0x2100000
+#define STYP_RCONST 0x2200000
+#define STYP_XDATA 0x2400000
+#define STYP_PDATA 0x2800000
/* The linker needs a section to hold small common variables while
linking. There is no convenient way to create it when the linker
#define RELOC_SECTION_FINI 12
#define RELOC_SECTION_LITA 13
#define RELOC_SECTION_ABS 14
+#define RELOC_SECTION_RCONST 15
+
+#define NUM_RELOC_SECTIONS 16
/********************** STABS **********************/
unsigned char t_tq23[1];
};
-#define TIR_BITS1_FBITFIELD_BIG 0x80
-#define TIR_BITS1_FBITFIELD_LITTLE 0x01
+#define TIR_BITS1_FBITFIELD_BIG ((unsigned int) 0x80)
+#define TIR_BITS1_FBITFIELD_LITTLE ((unsigned int) 0x01)
-#define TIR_BITS1_CONTINUED_BIG 0x40
-#define TIR_BITS1_CONTINUED_LITTLE 0x02
+#define TIR_BITS1_CONTINUED_BIG ((unsigned int) 0x40)
+#define TIR_BITS1_CONTINUED_LITTLE ((unsigned int) 0x02)
-#define TIR_BITS1_BT_BIG 0x3F
+#define TIR_BITS1_BT_BIG ((unsigned int) 0x3F)
#define TIR_BITS1_BT_SH_BIG 0
-#define TIR_BITS1_BT_LITTLE 0xFC
+#define TIR_BITS1_BT_LITTLE ((unsigned int) 0xFC)
#define TIR_BITS1_BT_SH_LITTLE 2
-#define TIR_BITS_TQ4_BIG 0xF0
+#define TIR_BITS_TQ4_BIG ((unsigned int) 0xF0)
#define TIR_BITS_TQ4_SH_BIG 4
-#define TIR_BITS_TQ5_BIG 0x0F
+#define TIR_BITS_TQ5_BIG ((unsigned int) 0x0F)
#define TIR_BITS_TQ5_SH_BIG 0
-#define TIR_BITS_TQ4_LITTLE 0x0F
+#define TIR_BITS_TQ4_LITTLE ((unsigned int) 0x0F)
#define TIR_BITS_TQ4_SH_LITTLE 0
-#define TIR_BITS_TQ5_LITTLE 0xF0
+#define TIR_BITS_TQ5_LITTLE ((unsigned int) 0xF0)
#define TIR_BITS_TQ5_SH_LITTLE 4
-#define TIR_BITS_TQ0_BIG 0xF0
+#define TIR_BITS_TQ0_BIG ((unsigned int) 0xF0)
#define TIR_BITS_TQ0_SH_BIG 4
-#define TIR_BITS_TQ1_BIG 0x0F
+#define TIR_BITS_TQ1_BIG ((unsigned int) 0x0F)
#define TIR_BITS_TQ1_SH_BIG 0
-#define TIR_BITS_TQ0_LITTLE 0x0F
+#define TIR_BITS_TQ0_LITTLE ((unsigned int) 0x0F)
#define TIR_BITS_TQ0_SH_LITTLE 0
-#define TIR_BITS_TQ1_LITTLE 0xF0
+#define TIR_BITS_TQ1_LITTLE ((unsigned int) 0xF0)
#define TIR_BITS_TQ1_SH_LITTLE 4
-#define TIR_BITS_TQ2_BIG 0xF0
+#define TIR_BITS_TQ2_BIG ((unsigned int) 0xF0)
#define TIR_BITS_TQ2_SH_BIG 4
-#define TIR_BITS_TQ3_BIG 0x0F
+#define TIR_BITS_TQ3_BIG ((unsigned int) 0x0F)
#define TIR_BITS_TQ3_SH_BIG 0
-#define TIR_BITS_TQ2_LITTLE 0x0F
+#define TIR_BITS_TQ2_LITTLE ((unsigned int) 0x0F)
#define TIR_BITS_TQ2_SH_LITTLE 0
-#define TIR_BITS_TQ3_LITTLE 0xF0
+#define TIR_BITS_TQ3_LITTLE ((unsigned int) 0xF0)
#define TIR_BITS_TQ3_SH_LITTLE 4
/* Relative symbol external record */
};
#define RNDX_BITS0_RFD_SH_LEFT_BIG 4
-#define RNDX_BITS1_RFD_BIG 0xF0
+#define RNDX_BITS1_RFD_BIG ((unsigned int) 0xF0)
#define RNDX_BITS1_RFD_SH_BIG 4
#define RNDX_BITS0_RFD_SH_LEFT_LITTLE 0
-#define RNDX_BITS1_RFD_LITTLE 0x0F
+#define RNDX_BITS1_RFD_LITTLE ((unsigned int) 0x0F)
#define RNDX_BITS1_RFD_SH_LEFT_LITTLE 8
-#define RNDX_BITS1_INDEX_BIG 0x0F
+#define RNDX_BITS1_INDEX_BIG ((unsigned int) 0x0F)
#define RNDX_BITS1_INDEX_SH_LEFT_BIG 16
#define RNDX_BITS2_INDEX_SH_LEFT_BIG 8
#define RNDX_BITS3_INDEX_SH_LEFT_BIG 0
-#define RNDX_BITS1_INDEX_LITTLE 0xF0
+#define RNDX_BITS1_INDEX_LITTLE ((unsigned int) 0xF0)
#define RNDX_BITS1_INDEX_SH_LITTLE 4
#define RNDX_BITS2_INDEX_SH_LEFT_LITTLE 4
#define RNDX_BITS3_INDEX_SH_LEFT_LITTLE 12
#define AUX_PUT_ANY(bigend, val, ax, field) \
((bigend) \
- ? (bfd_putb32 ((val), (ax)->field), 0) \
- : (bfd_putl32 ((val), (ax)->field), 0))
+ ? (bfd_putb32 ((bfd_vma) (val), (ax)->field), 0) \
+ : (bfd_putl32 ((bfd_vma) (val), (ax)->field), 0))
#define AUX_PUT_DNLOW(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_dnLow)
#define AUX_PUT_COUNT(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_count)
-/* Prototypes for the swapping functions. These require that sym.h be
- included before this file. */
+/********************** SYMBOLS **********************/
+
+/* For efficiency, gdb deals directly with the unswapped symbolic
+ information (that way it only takes the time to swap information
+ that it really needs to read). gdb originally retrieved the
+ information directly from the BFD backend information, but that
+ strategy, besides being sort of ugly, does not work for MIPS ELF,
+ which also uses ECOFF debugging information. This structure holds
+ pointers to the (mostly) unswapped symbolic information. */
+
+struct ecoff_debug_info
+{
+ /* The swapped ECOFF symbolic header. */
+ HDRR symbolic_header;
+
+ /* Pointers to the unswapped symbolic information. Note that the
+ pointers to external structures point to different sorts of
+ information on different ECOFF targets. The ecoff_debug_swap
+ structure provides the sizes of the structures and the functions
+ needed to swap the information in and out. These pointers are
+ all pointers to arrays, not single structures. They will be NULL
+ if there are no instances of the relevant structure. These
+ fields are also used by the assembler to output ECOFF debugging
+ information. */
+ unsigned char *line;
+ void *external_dnr; /* struct dnr_ext */
+ void *external_pdr; /* struct pdr_ext */
+ void *external_sym; /* struct sym_ext */
+ void *external_opt; /* struct opt_ext */
+ union aux_ext *external_aux;
+ char *ss;
+ char *ssext;
+ void *external_fdr; /* struct fdr_ext */
+ void *external_rfd; /* struct rfd_ext */
+ void *external_ext; /* struct ext_ext */
+
+ /* These fields are used when linking. They may disappear at some
+ point. */
+ char *ssext_end;
+ void *external_ext_end;
+
+ /* When linking, this field holds a mapping from the input FDR
+ numbers to the output numbers, and is used when writing out the
+ external symbols. It is NULL if no mapping is required. */
+ RFDT *ifdmap;
+
+ /* The swapped FDR information. Currently this is never NULL, but
+ code using this structure should probably double-check in case
+ this changes in the future. This is a pointer to an array, not a
+ single structure. */
+ FDR *fdr;
+};
+
+/* These structures are used by the ECOFF find_nearest_line function. */
-extern void ecoff_swap_tir_in PARAMS ((int bigend, struct tir_ext *, TIR *));
-extern void ecoff_swap_tir_out PARAMS ((int bigend, TIR *, struct tir_ext *));
-extern void ecoff_swap_rndx_in PARAMS ((int bigend, struct rndx_ext *,
- RNDXR *));
-extern void ecoff_swap_rndx_out PARAMS ((int bigend, RNDXR *,
- struct rndx_ext *));
+struct ecoff_fdrtab_entry
+{
+ /* Base address in .text of this FDR. */
+ bfd_vma base_addr;
+ FDR *fdr;
+};
+
+struct ecoff_find_line
+{
+ /* Allocated memory to hold function and file names. */
+ char *find_buffer;
+
+ /* FDR table, sorted by address: */
+ long fdrtab_len;
+ struct ecoff_fdrtab_entry *fdrtab;
+
+ /* Cache entry for most recently found line information. The sect
+ field is NULL if this cache does not contain valid information. */
+ struct
+ {
+ asection *sect;
+ bfd_vma start;
+ bfd_vma stop;
+ const char *filename;
+ const char *functionname;
+ unsigned int line_num;
+ } cache;
+};
+
+/********************** SWAPPING **********************/
+
+/* The generic ECOFF code needs to be able to swap debugging
+ information in and out in the specific format used by a particular
+ ECOFF implementation. This structure provides the information
+ needed to do this. */
+
+struct ecoff_debug_swap
+{
+ /* Symbol table magic number. */
+ int sym_magic;
+ /* Alignment of debugging information. E.g., 4. */
+ bfd_size_type debug_align;
+ /* Sizes of external symbolic information. */
+ bfd_size_type external_hdr_size;
+ bfd_size_type external_dnr_size;
+ bfd_size_type external_pdr_size;
+ bfd_size_type external_sym_size;
+ bfd_size_type external_opt_size;
+ bfd_size_type external_fdr_size;
+ bfd_size_type external_rfd_size;
+ bfd_size_type external_ext_size;
+ /* Functions to swap in external symbolic data. */
+ void (*swap_hdr_in) (bfd *, void *, HDRR *);
+ void (*swap_dnr_in) (bfd *, void *, DNR *);
+ void (*swap_pdr_in) (bfd *, void *, PDR *);
+ void (*swap_sym_in) (bfd *, void *, SYMR *);
+ void (*swap_opt_in) (bfd *, void *, OPTR *);
+ void (*swap_fdr_in) (bfd *, void *, FDR *);
+ void (*swap_rfd_in) (bfd *, void *, RFDT *);
+ void (*swap_ext_in) (bfd *, void *, EXTR *);
+ void (*swap_tir_in) (int, const struct tir_ext *, TIR *);
+ void (*swap_rndx_in) (int, const struct rndx_ext *, RNDXR *);
+ /* Functions to swap out external symbolic data. */
+ void (*swap_hdr_out) (bfd *, const HDRR *, void *);
+ void (*swap_dnr_out) (bfd *, const DNR *, void *);
+ void (*swap_pdr_out) (bfd *, const PDR *, void *);
+ void (*swap_sym_out) (bfd *, const SYMR *, void *);
+ void (*swap_opt_out) (bfd *, const OPTR *, void *);
+ void (*swap_fdr_out) (bfd *, const FDR *, void *);
+ void (*swap_rfd_out) (bfd *, const RFDT *, void *);
+ void (*swap_ext_out) (bfd *, const EXTR *, void *);
+ void (*swap_tir_out) (int, const TIR *, struct tir_ext *);
+ void (*swap_rndx_out) (int, const RNDXR *, struct rndx_ext *);
+ /* Function to read symbol data and set up pointers in
+ ecoff_debug_info structure. The section argument is used for
+ ELF, not straight ECOFF. */
+ bfd_boolean (*read_debug_info) (bfd *, asection *, struct ecoff_debug_info *);
+};
#endif /* ! defined (ECOFF_H) */
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