+/* Generic ECOFF support.
+ This does not include symbol information, found in sym.h and
+ symconst.h.
+
+ Copyright (C) 2001-2020 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
/* 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 _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_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
/* extended section types */
#define STYP_COMMENT 0x2100000
+#define STYP_RCONST 0x2200000
#define STYP_XDATA 0x2400000
#define STYP_PDATA 0x2800000
writing it out. */
#define SCOMMON ".scommon"
-/* The ECOFF a.out header carries information about register masks and
- the gp value. The assembler needs to be able to write out this
- information, and objcopy needs to be able to copy it from one file
- to another. To handle this in BFD, we use a dummy section to hold
- the information. We call this section .reginfo, since MIPS ELF has
- a .reginfo section which serves a similar purpose. When BFD
- recognizes an ECOFF object, it copies the information into a
- private data structure. When the .reginfo section is read, the
- information is retrieved from the private data structure. When the
- .reginfo section is written, the information in the private data
- structure is updated. The contents of the .reginfo section, as
- seen by programs outside BFD, is a ecoff_reginfo structure. The
- contents of the structure are as seen on the host, so no swapping
- issues arise.
-
- The assembler used to update the private BFD data structures
- directly. With this approach, it instead just creates a .reginfo
- section and updates that. The real advantage of this approach is
- that objcopy works automatically. */
-#define REGINFO ".reginfo"
-struct ecoff_reginfo
-{
- bfd_vma gp_value; /* GP register value. */
- unsigned long gprmask; /* General registers used. */
- unsigned long cprmask[4]; /* Coprocessor registers used. */
- unsigned long fprmask; /* Floating pointer registers used. */
-};
-
/* If the extern bit in a reloc is 1, then r_symndx is an index into
the external symbol table. If the extern bit is 0, then r_symndx
indicates a section, and is one of the following values. */
#define RELOC_SECTION_FINI 12
#define RELOC_SECTION_LITA 13
#define RELOC_SECTION_ABS 14
+#define RELOC_SECTION_RCONST 15
-#define NUM_RELOC_SECTIONS 15
+#define NUM_RELOC_SECTIONS 16
/********************** STABS **********************/
#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. */
-
-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 *));
-
-/********************** 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) PARAMS ((bfd *, PTR, HDRR *));
- void (*swap_dnr_in) PARAMS ((bfd *, PTR, DNR *));
- void (*swap_pdr_in) PARAMS ((bfd *, PTR, PDR *));
- void (*swap_sym_in) PARAMS ((bfd *, PTR, SYMR *));
- void (*swap_opt_in) PARAMS ((bfd *, PTR, OPTR *));
- void (*swap_fdr_in) PARAMS ((bfd *, PTR, FDR *));
- void (*swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *));
- void (*swap_ext_in) PARAMS ((bfd *, PTR, EXTR *));
- /* Functions to swap out external symbolic data. */
- void (*swap_hdr_out) PARAMS ((bfd *, const HDRR *, PTR));
- void (*swap_dnr_out) PARAMS ((bfd *, const DNR *, PTR));
- void (*swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR));
- void (*swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR));
- void (*swap_opt_out) PARAMS ((bfd *, const OPTR *, PTR));
- void (*swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR));
- void (*swap_rfd_out) PARAMS ((bfd *, const RFDT *, PTR));
- void (*swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR));
- /* As noted above, it so happens that the auxiliary type information
- has the same type and format for all known ECOFF targets. I don't
- see any reason that that should change, so at least for now the
- auxiliary swapping information is not in this table. */
-};
-
/********************** SYMBOLS **********************/
/* For efficiency, gdb deals directly with the unswapped symbolic
fields are also used by the assembler to output ECOFF debugging
information. */
unsigned char *line;
- PTR external_dnr; /* struct dnr_ext */
- PTR external_pdr; /* struct pdr_ext */
- PTR external_sym; /* struct sym_ext */
- PTR external_opt; /* struct opt_ext */
+ 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;
- PTR external_fdr; /* struct fdr_ext */
- PTR external_rfd; /* struct rfd_ext */
- PTR external_ext; /* struct ext_ext */
+ 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;
- PTR external_ext_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
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. */
- /* When relaxing MIPS embedded PIC code, we may need to adjust
- symbol values when they are output. This is a linked list of
- structures indicating how values should be adjusted. There is no
- requirement that the entries be in any order, or that they not
- overlap. This field is normally NULL, in which case no
- adjustments need to be made. */
- struct ecoff_value_adjust *adjust;
+struct ecoff_fdrtab_entry
+{
+ /* Base address in .text of this FDR. */
+ bfd_vma base_addr;
+ FDR *fdr;
};
-/* This structure describes how to adjust symbol values when
- outputting MIPS embedded PIC code. These adjustments only apply to
- the internal symbols, as the external symbol values will come from
- the hash table and have already been adjusted. */
+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_value_adjust
+struct ecoff_debug_swap
{
- /* Next entry on adjustment list. */
- struct ecoff_value_adjust *next;
- /* Starting VMA of adjustment. This is the VMA in the ECOFF file,
- not the offset from the start of the section. Thus it should
- indicate a particular section. */
- bfd_vma start;
- /* Ending VMA of adjustment. */
- bfd_vma end;
- /* Adjustment. This should be added to the value of the symbol, or
- FDR. This is zero for the last entry in the array. */
- long adjust;
+ /* 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) */
projects / deliverable / binutils-gdb.git / blobdiff