-/* MIPS Extended-Coff back-end for BFD.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
- Written by Per Bothner.
+/* BFD back-end for MIPS Extended-Coff files.
+ Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
+ Original version by Per Bothner.
+ Full support by Ian Lance Taylor, ian@cygnus.com.
This file is part of BFD, the Binary File Descriptor library.
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
-#include "coff-mips.h"
-#include "internalcoff.h"
-#include "libcoff.h" /* to allow easier abstraction-breaking */
-#include "trad-core.h"
-
-#define BADMAG(x) ECOFFBADMAG(x)
-
-/* Define NO_COFF_SYMBOLS and NO_COFF_LINENOS to avoid coffcode.h
- defining a mess of useless functions. */
-#define NO_COFF_SYMBOLS
-#define NO_COFF_LINENOS
-/* Define MIPS to get MIPS magic numbers and such */
-#define MIPS 1
-/* Define additional MIPS section types */
-#define STYP_OTHER_LOAD 0x98000300
-#include "coffcode.h"
-
-/* We do not implement symbols for ecoff. */
-#define coff_get_symtab_upper_bound (PROTO(unsigned int, (*),(bfd *)))bfd_false
-#define coff_get_symtab (PROTO(unsigned int, (*), (bfd *, asymbol **)))bfd_0
-#define coff_print_symbol \
- (PROTO(void,(*),(bfd *, PTR, asymbol *, enum bfd_print_symbol))) bfd_void
-#define coff_swap_sym_in (PROTO(void,(*),(bfd *,PTR,PTR))) bfd_void
-#define coff_swap_aux_in (PROTO(void,(*),(bfd *,PTR,int,int,PTR))) bfd_void
-#define coff_swap_sym_out (PROTO(unsigned,(*),(bfd *,PTR,PTR))) bfd_void
-#define coff_swap_aux_out (PROTO(unsigned,(*),(bfd *,PTR,int,int,PTR))) bfd_void
-
-/* We do not implement linenos for ecoff. */
-#define coff_get_lineno (struct lineno_cache_entry *(*)()) bfd_nullvoidptr
-#define coff_swap_lineno_in (PROTO(void,(*),(bfd *,PTR,PTR))) bfd_void
-#define coff_find_nearest_line (PROTO(boolean, (*),(bfd*,asection*,asymbol**,bfd_vma, CONST char**, CONST char**, unsigned int *))) bfd_false
-#define coff_swap_lineno_out (PROTO(unsigned,(*),(bfd *,PTR,PTR))) bfd_void
+#include "seclet.h"
+#include "aout/ar.h"
+#include "aout/ranlib.h"
+#include "coff/mips.h"
+#include "coff/internal.h"
+#include "coff/sym.h"
+#include "coff/symconst.h"
+#include "coff/ecoff-ext.h"
+#include "libcoff.h"
+
+/* `Tdata' information kept for ECOFF files. */
+
+#define ecoff_data(abfd) ((abfd)->tdata.ecoff_obj_data)
+
+typedef struct ecoff_tdata
+{
+ /* The reloc file position, set by
+ ecoff_compute_section_file_positions. */
+ file_ptr reloc_filepos;
+
+ /* The symbol table file position, set by ecoff_mkobject_hook. */
+ file_ptr sym_filepos;
+
+ /* The cached gp value. This is used when relocating. */
+ bfd_vma gp;
+
+ /* The register masks. When linking, all the masks found in the
+ input files are combined into the masks of the output file. */
+ unsigned long gprmask;
+ unsigned long cprmask[4];
+
+ /* The size of the unswapped ECOFF symbolic information. */
+ bfd_size_type raw_size;
+
+ /* The unswapped ECOFF symbolic information. */
+ PTR raw_syments;
+
+ /* The swapped ECOFF symbolic header. */
+ HDRR symbolic_header;
+
+ /* Pointers to the unswapped symbolic information. */
+ unsigned char *line;
+ struct dnr_ext *external_dnr;
+ struct pdr_ext *external_pdr;
+ struct sym_ext *external_sym;
+ struct opt_ext *external_opt;
+ union aux_ext *external_aux;
+ char *ss;
+ char *ssext;
+ struct fdr_ext *external_fdr;
+ struct rfd_ext *external_rfd;
+ struct ext_ext *external_ext;
+
+ /* The swapped FDR information. */
+ FDR *fdr;
+
+ /* The FDR index. This is set for an input BFD to a link so that
+ the external symbols can set their FDR index correctly. */
+ unsigned int ifdbase;
+
+ /* The canonical BFD symbols. */
+ struct ecoff_symbol_struct *canonical_symbols;
+
+} ecoff_data_type;
+
+/* Each canonical asymbol really looks like this. */
+
+typedef struct ecoff_symbol_struct
+{
+ /* The actual symbol which the rest of BFD works with */
+ asymbol symbol;
+
+ /* The fdr for this symbol. */
+ FDR *fdr;
+
+ /* true if this is a local symbol rather than an external one. */
+ boolean local;
+
+ /* A pointer to the unswapped hidden information for this symbol */
+ union
+ {
+ struct sym_ext *lnative;
+ struct ext_ext *enative;
+ }
+ native;
+} ecoff_symbol_type;
+
+/* We take the address of the first element of a asymbol to ensure that the
+ macro is only ever applied to an asymbol. */
+#define ecoffsymbol(asymbol) ((ecoff_symbol_type *) (&((asymbol)->the_bfd)))
+
+/* This is a hack borrowed from coffcode.h; we need to save the index
+ of a symbol when we write it out so that can set the symbol index
+ correctly when we write out the relocs. */
+#define ecoff_get_sym_index(symbol) ((unsigned long) (symbol)->udata)
+#define ecoff_set_sym_index(symbol, idx) ((symbol)->udata = (PTR) (idx))
+
+/* The page boundary used to align sections in the executable file. */
+#define PAGE_SIZE 0x2000
+
+/* MIPS ECOFF has COFF sections, but the debugging information is
+ stored in a completely different format. This files uses the some
+ of the swapping routines from coffswap.h, and some of the generic
+ COFF routines in coffgen.c, but, unlike the real COFF targets, does
+ not use coffcode.h itself. */
+
+/* Get the generic COFF swapping routines, except for the reloc,
+ symbol, and lineno ones. Give them ecoff names. */
+#define MIPSECOFF
+#define NO_COFF_RELOCS
+#define NO_COFF_SYMBOLS
+#define NO_COFF_LINENOS
+#define coff_swap_filehdr_in ecoff_swap_filehdr_in
+#define coff_swap_filehdr_out ecoff_swap_filehdr_out
+#define coff_swap_aouthdr_in ecoff_swap_aouthdr_in
+#define coff_swap_aouthdr_out ecoff_swap_aouthdr_out
+#define coff_swap_scnhdr_in ecoff_swap_scnhdr_in
+#define coff_swap_scnhdr_out ecoff_swap_scnhdr_out
+#include "coffswap.h"
+\f
+/* This stuff is somewhat copied from coffcode.h. */
+
+static asection bfd_debug_section = { "*DEBUG*" };
+
+/* See whether the magic number matches. */
+
+static boolean
+DEFUN(ecoff_bad_format_hook, (abfd, filehdr),
+ bfd *abfd AND
+ PTR filehdr)
+{
+ struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
+
+ if (ECOFFBADMAG (*internal_f))
+ return false;
+
+ return true;
+}
+
+/* This is a hook needed by SCO COFF, but we have nothing to do. */
+
+static asection *
+DEFUN (ecoff_make_section_hook, (abfd, name),
+ bfd *abfd AND
+ char *name)
+{
+ return (asection *) NULL;
+}
+
+/* Initialize a new section. */
+
+static boolean
+DEFUN (ecoff_new_section_hook, (abfd, section),
+ bfd *abfd AND
+ asection *section)
+{
+ section->alignment_power = abfd->xvec->align_power_min;
+
+ if (strcmp (section->name, _TEXT) == 0)
+ section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
+ else if (strcmp (section->name, _DATA) == 0
+ || strcmp (section->name, _SDATA) == 0)
+ section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
+ else if (strcmp (section->name, _RDATA) == 0
+ || strcmp (section->name, _LIT8) == 0
+ || strcmp (section->name, _LIT4) == 0)
+ section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY;
+ else if (strcmp (section->name, _BSS) == 0
+ || strcmp (section->name, _SBSS) == 0)
+ section->flags |= SEC_ALLOC;
+
+ /* Probably any other section name is SEC_NEVER_LOAD, but I'm
+ uncertain about .init on some systems and I don't know how shared
+ libraries work. */
+
+ return true;
+}
+
+#define ecoff_set_alignment_hook \
+ ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
+
+static boolean
+DEFUN (ecoff_mkobject, (abfd),
+ bfd *abfd)
+{
+ abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *)
+ bfd_zalloc (abfd, sizeof(ecoff_data_type)));
+ if (abfd->tdata.ecoff_obj_data == NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+
+ return true;
+}
+
+/* Create the COFF backend specific information. */
+
+static PTR
+ecoff_mkobject_hook (abfd, filehdr, aouthdr)
+ bfd *abfd;
+ PTR filehdr;
+ PTR aouthdr;
+{
+ struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
+ struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr;
+ ecoff_data_type *ecoff;
+
+ if (ecoff_mkobject (abfd) == false)
+ return NULL;
+
+ ecoff = ecoff_data (abfd);
+ ecoff->sym_filepos = internal_f->f_symptr;
+
+ if (internal_a != (struct internal_aouthdr *) NULL)
+ {
+ int i;
+
+ ecoff->gp = internal_a->gp_value;
+ ecoff->gprmask = internal_a->gprmask;
+ for (i = 0; i < 3; i++)
+ ecoff->cprmask[i] = internal_a->cprmask[i];
+ }
+
+ return (PTR) ecoff;
+}
+
+/* Determine the machine architecture and type. */
+static boolean
+DEFUN (ecoff_set_arch_mach_hook, (abfd, filehdr),
+ bfd *abfd AND
+ PTR filehdr)
+{
+ long machine;
+ enum bfd_architecture arch;
+ struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
+
+ machine = 0;
+ switch (internal_f->f_magic) {
+ case MIPS_MAGIC_1:
+ case MIPS_MAGIC_2:
+ case MIPS_MAGIC_3:
+ arch = bfd_arch_mips;
+ machine = 0;
+ break;
+
+ default: /* Unreadable input file type */
+ arch = bfd_arch_obscure;
+ break;
+ }
+
+ bfd_default_set_arch_mach(abfd, arch, machine);
+ return true;
+}
+
+/* Get the section s_flags to use for a section. */
+
+static long
+DEFUN (sec_to_styp_flags, (name, flags),
+ CONST char *name AND
+ flagword flags)
+{
+ long styp;
+
+ styp = 0;
+
+ if (strcmp (name, _TEXT) == 0)
+ styp = STYP_TEXT;
+ else if (strcmp (name, _DATA) == 0)
+ styp = STYP_DATA;
+ else if (strcmp (name, _SDATA) == 0)
+ styp = STYP_SDATA;
+ else if (strcmp (name, _RDATA) == 0)
+ styp = STYP_RDATA;
+ else if (strcmp (name, _LIT8) == 0)
+ styp = STYP_LIT8;
+ else if (strcmp (name, _LIT4) == 0)
+ styp = STYP_LIT4;
+ else if (strcmp (name, _BSS) == 0)
+ styp = STYP_BSS;
+ else if (strcmp (name, _SBSS) == 0)
+ styp = STYP_SBSS;
+ else if (flags & SEC_CODE)
+ styp = STYP_TEXT;
+ else if (flags & SEC_DATA)
+ styp = STYP_DATA;
+ else if (flags & SEC_READONLY)
+ styp = STYP_RDATA;
+ else if (flags & SEC_LOAD)
+ styp = STYP_TEXT;
+ else
+ styp = STYP_BSS;
+
+ if (flags & SEC_NEVER_LOAD)
+ styp |= STYP_NOLOAD;
+
+ return styp;
+}
+
+/* Get the BFD flags to use for a section. */
+
+static flagword
+DEFUN (styp_to_sec_flags, (abfd, hdr),
+ bfd *abfd AND
+ PTR hdr)
+{
+ struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
+ long styp_flags = internal_s->s_flags;
+ flagword sec_flags=0;
+
+ if (styp_flags & STYP_NOLOAD)
+ sec_flags |= SEC_NEVER_LOAD;
+
+ /* For 386 COFF, at least, an unloadable text or data section is
+ actually a shared library section. */
+ if (styp_flags & STYP_TEXT)
+ {
+ if (sec_flags & SEC_NEVER_LOAD)
+ sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY;
+ else
+ sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
+ }
+ else if ((styp_flags & STYP_DATA)
+ || (styp_flags & STYP_RDATA)
+ || (styp_flags & STYP_SDATA))
+ {
+ if (sec_flags & SEC_NEVER_LOAD)
+ sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY;
+ else
+ sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
+ if (styp_flags & STYP_RDATA)
+ sec_flags |= SEC_READONLY;
+ }
+ else if ((styp_flags & STYP_BSS)
+ || (styp_flags & STYP_SBSS))
+ {
+ sec_flags |= SEC_ALLOC;
+ }
+ else if (styp_flags & STYP_INFO)
+ {
+ sec_flags |= SEC_NEVER_LOAD;
+ }
+ else if ((styp_flags & STYP_LIT8)
+ || (styp_flags & STYP_LIT4))
+ {
+ sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY;
+ }
+ else
+ {
+ sec_flags |= SEC_ALLOC | SEC_LOAD;
+ }
+
+ return sec_flags;
+}
+\f
+/* Read in and swap the important symbolic information for an ECOFF
+ object file. */
+
+static boolean
+DEFUN (ecoff_slurp_symbolic_info, (abfd),
+ bfd *abfd)
+{
+ struct hdr_ext external_symhdr;
+ HDRR *internal_symhdr;
+ bfd_size_type raw_base;
+ bfd_size_type raw_size;
+ PTR raw;
+ struct fdr_ext *fraw_src;
+ struct fdr_ext *fraw_end;
+ struct fdr *fdr_ptr;
+
+ /* Check whether we've already gotten it, and whether there's any to
+ get. */
+ if (ecoff_data (abfd)->raw_syments != (PTR) NULL)
+ return true;
+ if (ecoff_data (abfd)->sym_filepos == 0)
+ {
+ bfd_get_symcount (abfd) = 0;
+ return true;
+ }
+
+ /* At this point bfd_get_symcount (abfd) holds the number of symbols
+ as read from the file header, but on ECOFF this is always the
+ size of the symbolic information header. It would be cleaner to
+ handle this when we first read the file in coffgen.c. */
+ if (bfd_get_symcount (abfd) != sizeof (external_symhdr))
+ {
+ bfd_error = bad_value;
+ return false;
+ }
+
+ /* Read the symbolic information header. */
+ if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1
+ || (bfd_read ((PTR) &external_symhdr, sizeof (external_symhdr), 1, abfd)
+ != sizeof (external_symhdr)))
+ {
+ bfd_error = system_call_error;
+ return false;
+ }
+ internal_symhdr = &ecoff_data (abfd)->symbolic_header;
+ ecoff_swap_hdr_in (abfd, &external_symhdr, internal_symhdr);
+
+ if (internal_symhdr->magic != magicSym)
+ {
+ bfd_error = bad_value;
+ return false;
+ }
+
+ /* Now we can get the correct number of symbols. */
+ bfd_get_symcount (abfd) = (internal_symhdr->isymMax
+ + internal_symhdr->iextMax);
+
+ /* Read all the symbolic information at once. */
+ raw_base = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext);
+
+ if (internal_symhdr->cbExtOffset != 0)
+ raw_size = (internal_symhdr->cbExtOffset
+ - raw_base
+ + internal_symhdr->iextMax * sizeof (struct ext_ext));
+ else
+ {
+ long cbline, issmax, issextmax;
+
+ cbline = (internal_symhdr->cbLine + 3) &~ 4;
+ issmax = (internal_symhdr->issMax + 3) &~ 4;
+ issextmax = (internal_symhdr->issExtMax + 3) &~ 4;
+ raw_size = (cbline * sizeof (unsigned char)
+ + internal_symhdr->idnMax * sizeof (struct dnr_ext)
+ + internal_symhdr->ipdMax * sizeof (struct pdr_ext)
+ + internal_symhdr->isymMax * sizeof (struct sym_ext)
+ + internal_symhdr->ioptMax * sizeof (struct opt_ext)
+ + internal_symhdr->iauxMax * sizeof (union aux_ext)
+ + issmax * sizeof (char)
+ + issextmax * sizeof (char)
+ + internal_symhdr->ifdMax * sizeof (struct fdr_ext)
+ + internal_symhdr->crfd * sizeof (struct rfd_ext)
+ + internal_symhdr->iextMax * sizeof (struct ext_ext));
+ }
+
+ if (raw_size == 0)
+ {
+ ecoff_data (abfd)->sym_filepos = 0;
+ return true;
+ }
+ raw = (PTR) bfd_alloc (abfd, raw_size);
+ if (raw == NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ if (bfd_read (raw, raw_size, 1, abfd) != raw_size)
+ {
+ bfd_error = system_call_error;
+ bfd_release (abfd, raw);
+ return false;
+ }
+
+ ecoff_data (abfd)->raw_size = raw_size;
+ ecoff_data (abfd)->raw_syments = raw;
+
+ /* Get pointers for the numeric offsets in the HDRR structure. */
+#define FIX(off1, off2, type) \
+ if (internal_symhdr->off1 == 0) \
+ ecoff_data (abfd)->off2 = (type *) NULL; \
+ else \
+ ecoff_data (abfd)->off2 = (type *) ((char *) raw \
+ + internal_symhdr->off1 \
+ - raw_base)
+ FIX (cbLineOffset, line, unsigned char);
+ FIX (cbDnOffset, external_dnr, struct dnr_ext);
+ FIX (cbPdOffset, external_pdr, struct pdr_ext);
+ FIX (cbSymOffset, external_sym, struct sym_ext);
+ FIX (cbOptOffset, external_opt, struct opt_ext);
+ FIX (cbAuxOffset, external_aux, union aux_ext);
+ FIX (cbSsOffset, ss, char);
+ FIX (cbSsExtOffset, ssext, char);
+ FIX (cbFdOffset, external_fdr, struct fdr_ext);
+ FIX (cbRfdOffset, external_rfd, struct rfd_ext);
+ FIX (cbExtOffset, external_ext, struct ext_ext);
+#undef FIX
+
+ /* I don't want to always swap all the data, because it will just
+ waste time and most programs will never look at it. The only
+ time the linker needs most of the debugging information swapped
+ is when linking big-endian and little-endian MIPS object files
+ together, which is not a common occurrence.
+
+ We need to look at the fdr to deal with a lot of information in
+ the symbols, so we swap them here. */
+ ecoff_data (abfd)->fdr = (struct fdr *) bfd_alloc (abfd,
+ (internal_symhdr->ifdMax *
+ sizeof (struct fdr)));
+ if (ecoff_data (abfd)->fdr == NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ fdr_ptr = ecoff_data (abfd)->fdr;
+ fraw_src = ecoff_data (abfd)->external_fdr;
+ fraw_end = fraw_src + internal_symhdr->ifdMax;
+ for (; fraw_src < fraw_end; fraw_src++, fdr_ptr++)
+ ecoff_swap_fdr_in (abfd, fraw_src, fdr_ptr);
+
+ return true;
+}
+\f
+/* ECOFF symbol table routines. The ECOFF symbol table is described
+ in gcc/mips-tfile.c. */
+
+/* ECOFF uses two common sections. One is the usual one, and the
+ other is for small objects. All the small objects are kept
+ together, and then referenced via the gp pointer, which yields
+ faster assembler code. This is what we use for the small common
+ section. */
+static asection ecoff_scom_section;
+static asymbol ecoff_scom_symbol;
+static asymbol *ecoff_scom_symbol_ptr;
+
+/* Create an empty symbol. */
+
+static asymbol *
+DEFUN (ecoff_make_empty_symbol, (abfd),
+ bfd *abfd)
+{
+ ecoff_symbol_type *new;
+
+ new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type));
+ if (new == (ecoff_symbol_type *) NULL)
+ {
+ bfd_error = no_memory;
+ return (asymbol *) NULL;
+ }
+ new->symbol.section = (asection *) NULL;
+ new->fdr = (FDR *) NULL;
+ new->local = false;
+ new->native.lnative = (struct sym_ext *) NULL;
+ new->symbol.the_bfd = abfd;
+ return &new->symbol;
+}
+
+/* Set the BFD flags and section for an ECOFF symbol. */
+
+static void
+DEFUN (ecoff_set_symbol_info, (abfd, ecoff_sym, asym, ext),
+ bfd *abfd AND
+ SYMR *ecoff_sym AND
+ asymbol *asym AND
+ int ext)
+{
+ asym->the_bfd = abfd;
+ asym->value = ecoff_sym->value;
+ asym->section = &bfd_debug_section;
+ asym->udata = NULL;
+
+ /* Most symbol types are just for debugging. */
+ switch (ecoff_sym->st)
+ {
+ case stGlobal:
+ case stStatic:
+ case stLabel:
+ case stProc:
+ case stStaticProc:
+ case stBlock:
+ case stNil:
+ break;
+ default:
+ asym->flags = BSF_DEBUGGING;
+ return;
+ }
+
+ if (ext)
+ asym->flags = BSF_EXPORT | BSF_GLOBAL;
+ else
+ asym->flags = BSF_LOCAL;
+ switch (ecoff_sym->sc)
+ {
+ case scNil:
+ /* Used for compiler generated labels. Leave them in the
+ debugging section, and mark them as local. If BSF_DEBUGGING
+ is set, then nm does not display them for some reason. If no
+ flags are set then the linker whines about them. */
+ asym->flags = BSF_LOCAL;
+ break;
+ case scText:
+ asym->section = bfd_make_section_old_way (abfd, ".text");
+ asym->value -= asym->section->vma;
+ break;
+ case scData:
+ asym->section = bfd_make_section_old_way (abfd, ".data");
+ asym->value -= asym->section->vma;
+ break;
+ case scBss:
+ if (ext)
+ {
+ asym->section = &bfd_com_section;
+ asym->flags = 0;
+ }
+ else
+ {
+ asym->section = bfd_make_section_old_way (abfd, ".bss");
+ asym->value -= asym->section->vma;
+ }
+ break;
+ case scRegister:
+ asym->flags = BSF_DEBUGGING;
+ break;
+ case scAbs:
+ asym->section = &bfd_abs_section;
+ break;
+ case scUndefined:
+ asym->section = &bfd_und_section;
+ asym->flags = 0;
+ asym->value = 0;
+ break;
+ case scCdbLocal:
+ case scBits:
+ case scCdbSystem:
+ case scRegImage:
+ case scInfo:
+ case scUserStruct:
+ asym->flags = BSF_DEBUGGING;
+ break;
+ case scSData:
+ asym->section = bfd_make_section_old_way (abfd, ".sdata");
+ asym->value -= asym->section->vma;
+ break;
+ case scSBss:
+ asym->section = bfd_make_section_old_way (abfd, ".sbss");
+ if (! ext)
+ asym->value -= asym->section->vma;
+ break;
+ case scRData:
+ asym->section = bfd_make_section_old_way (abfd, ".rdata");
+ asym->value -= asym->section->vma;
+ break;
+ case scVar:
+ asym->flags = BSF_DEBUGGING;
+ break;
+ case scCommon:
+ asym->section = &bfd_com_section;
+ break;
+ case scSCommon:
+ if (ecoff_scom_section.name == NULL)
+ {
+ /* Initialize the small common section. */
+ ecoff_scom_section.name = "*SCOM*";
+ ecoff_scom_section.flags = SEC_IS_COMMON;
+ ecoff_scom_section.output_section = &ecoff_scom_section;
+ ecoff_scom_section.symbol = &ecoff_scom_symbol;
+ ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr;
+ ecoff_scom_symbol.name = "*SCOM*";
+ ecoff_scom_symbol.flags = BSF_SECTION_SYM;
+ ecoff_scom_symbol.section = &ecoff_scom_section;
+ ecoff_scom_symbol_ptr = &ecoff_scom_symbol;
+ }
+ asym->section = &ecoff_scom_section;
+ asym->flags = 0;
+ break;
+ case scVarRegister:
+ case scVariant:
+ asym->flags = BSF_DEBUGGING;
+ break;
+ case scSUndefined:
+ asym->section = &bfd_und_section;
+ asym->flags = 0;
+ asym->value = 0;
+ break;
+ case scInit:
+ asym->section = bfd_make_section_old_way (abfd, ".init");
+ asym->value -= asym->section->vma;
+ break;
+ case scBasedVar:
+ case scXData:
+ case scPData:
+ asym->flags = BSF_DEBUGGING;
+ break;
+ case scFini:
+ asym->section = bfd_make_section_old_way (abfd, ".fini");
+ asym->value -= asym->section->vma;
+ break;
+ default:
+ break;
+ }
+}
+
+/* Read an ECOFF symbol table. */
+
+static boolean
+DEFUN (ecoff_slurp_symbol_table, (abfd),
+ bfd *abfd)
+{
+ bfd_size_type internal_size;
+ ecoff_symbol_type *internal;
+ ecoff_symbol_type *internal_ptr;
+ struct ext_ext *eraw_src;
+ struct ext_ext *eraw_end;
+ FDR *fdr_ptr;
+ FDR *fdr_end;
+
+ /* If we've already read in the symbol table, do nothing. */
+ if (ecoff_data (abfd)->canonical_symbols != NULL)
+ return true;
+
+ /* Get the symbolic information. */
+ if (ecoff_slurp_symbolic_info (abfd) == false)
+ return false;
+ if (bfd_get_symcount (abfd) == 0)
+ return true;
+
+ internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type);
+ internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size);
+ if (internal == NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+
+ internal_ptr = internal;
+ eraw_src = ecoff_data (abfd)->external_ext;
+ eraw_end = eraw_src + ecoff_data (abfd)->symbolic_header.iextMax;
+ for (; eraw_src < eraw_end; eraw_src++, internal_ptr++)
+ {
+ EXTR internal_esym;
+
+ ecoff_swap_ext_in (abfd, eraw_src, &internal_esym);
+ internal_ptr->symbol.name = (ecoff_data (abfd)->ssext
+ + internal_esym.asym.iss);
+ ecoff_set_symbol_info (abfd, &internal_esym.asym,
+ &internal_ptr->symbol, 1);
+ internal_ptr->fdr = ecoff_data (abfd)->fdr + internal_esym.ifd;
+ internal_ptr->local = false;
+ internal_ptr->native.enative = eraw_src;
+ }
+
+ /* The local symbols must be accessed via the fdr's, because the
+ string and aux indices are relative to the fdr information. */
+ fdr_ptr = ecoff_data (abfd)->fdr;
+ fdr_end = fdr_ptr + ecoff_data (abfd)->symbolic_header.ifdMax;
+ for (; fdr_ptr < fdr_end; fdr_ptr++)
+ {
+ struct sym_ext *lraw_src;
+ struct sym_ext *lraw_end;
+
+ lraw_src = ecoff_data (abfd)->external_sym + fdr_ptr->isymBase;
+ lraw_end = lraw_src + fdr_ptr->csym;
+ for (; lraw_src < lraw_end; lraw_src++, internal_ptr++)
+ {
+ SYMR internal_sym;
+
+ ecoff_swap_sym_in (abfd, lraw_src, &internal_sym);
+ internal_ptr->symbol.name = (ecoff_data (abfd)->ss
+ + fdr_ptr->issBase
+ + internal_sym.iss);
+ ecoff_set_symbol_info (abfd, &internal_sym,
+ &internal_ptr->symbol, 0);
+ internal_ptr->fdr = fdr_ptr;
+ internal_ptr->local = true;
+ internal_ptr->native.lnative = lraw_src;
+ }
+ }
+
+ ecoff_data (abfd)->canonical_symbols = internal;
+
+ return true;
+}
+
+static unsigned int
+DEFUN (ecoff_get_symtab_upper_bound, (abfd),
+ bfd *abfd)
+{
+ if (ecoff_slurp_symbolic_info (abfd) == false
+ || bfd_get_symcount (abfd) == 0)
+ return 0;
+
+ return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *));
+}
+
+static unsigned int
+DEFUN (ecoff_get_symtab, (abfd, alocation),
+ bfd *abfd AND
+ asymbol **alocation)
+{
+ unsigned int counter = 0;
+ ecoff_symbol_type *symbase;
+ ecoff_symbol_type **location = (ecoff_symbol_type **) alocation;
+
+ if (ecoff_slurp_symbol_table (abfd) == false
+ || bfd_get_symcount (abfd) == 0)
+ return 0;
+
+ symbase = ecoff_data (abfd)->canonical_symbols;
+ while (counter < bfd_get_symcount (abfd))
+ {
+ *(location++) = symbase++;
+ counter++;
+ }
+ *location++ = (ecoff_symbol_type *) NULL;
+ return bfd_get_symcount (abfd);
+}
+
+/* Turn ECOFF type information into a printable string.
+ emit_aggregate and type_to_string are from gcc/mips-tdump.c, with
+ swapping added and used_ptr removed. */
+
+/* Write aggregate information to a string. */
+
+static void
+DEFUN (emit_aggregate, (abfd, string, rndx, isym, which),
+ bfd *abfd AND
+ char *string AND
+ RNDXR *rndx AND
+ long isym AND
+ CONST char *which)
+{
+ int ifd = rndx->rfd;
+ int indx = rndx->index;
+ int sym_base, ss_base;
+ CONST char *name;
+
+ if (ifd == 0xfff)
+ ifd = isym;
+
+ sym_base = ecoff_data (abfd)->fdr[ifd].isymBase;
+ ss_base = ecoff_data (abfd)->fdr[ifd].issBase;
+
+ if (indx == indexNil)
+ name = "/* no name */";
+ else
+ {
+ SYMR sym;
+
+ indx += sym_base;
+ ecoff_swap_sym_in (abfd,
+ ecoff_data (abfd)->external_sym + indx,
+ &sym);
+ name = ecoff_data (abfd)->ss + ss_base + sym.iss;
+ }
+
+ sprintf (string,
+ "%s %s { ifd = %d, index = %d }",
+ which, name, ifd,
+ indx + ecoff_data (abfd)->symbolic_header.iextMax);
+}
+
+/* Convert the type information to string format. */
+
+static char *
+DEFUN (type_to_string, (abfd, aux_ptr, indx, bigendian),
+ bfd *abfd AND
+ union aux_ext *aux_ptr AND
+ int indx AND
+ int bigendian)
+{
+ AUXU u;
+ struct qual {
+ unsigned int type;
+ int low_bound;
+ int high_bound;
+ int stride;
+ } qualifiers[7];
+
+ unsigned int basic_type;
+ int i;
+ static char buffer1[1024];
+ static char buffer2[1024];
+ char *p1 = buffer1;
+ char *p2 = buffer2;
+ RNDXR rndx;
+
+ for (i = 0; i < 7; i++)
+ {
+ qualifiers[i].low_bound = 0;
+ qualifiers[i].high_bound = 0;
+ qualifiers[i].stride = 0;
+ }
+
+ if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1)
+ return "-1 (no type)";
+ ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti);
+
+ basic_type = u.ti.bt;
+ qualifiers[0].type = u.ti.tq0;
+ qualifiers[1].type = u.ti.tq1;
+ qualifiers[2].type = u.ti.tq2;
+ qualifiers[3].type = u.ti.tq3;
+ qualifiers[4].type = u.ti.tq4;
+ qualifiers[5].type = u.ti.tq5;
+ qualifiers[6].type = tqNil;
+
+ /*
+ * Go get the basic type.
+ */
+ switch (basic_type)
+ {
+ case btNil: /* undefined */
+ strcpy (p1, "nil");
+ break;
+
+ case btAdr: /* address - integer same size as pointer */
+ strcpy (p1, "address");
+ break;
+
+ case btChar: /* character */
+ strcpy (p1, "char");
+ break;
+
+ case btUChar: /* unsigned character */
+ strcpy (p1, "unsigned char");
+ break;
+
+ case btShort: /* short */
+ strcpy (p1, "short");
+ break;
+
+ case btUShort: /* unsigned short */
+ strcpy (p1, "unsigned short");
+ break;
+
+ case btInt: /* int */
+ strcpy (p1, "int");
+ break;
+
+ case btUInt: /* unsigned int */
+ strcpy (p1, "unsigned int");
+ break;
+
+ case btLong: /* long */
+ strcpy (p1, "long");
+ break;
+
+ case btULong: /* unsigned long */
+ strcpy (p1, "unsigned long");
+ break;
+
+ case btFloat: /* float (real) */
+ strcpy (p1, "float");
+ break;
+
+ case btDouble: /* Double (real) */
+ strcpy (p1, "double");
+ break;
+
+ /* Structures add 1-2 aux words:
+ 1st word is [ST_RFDESCAPE, offset] pointer to struct def;
+ 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
+
+ case btStruct: /* Structure (Record) */
+ ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx);
+ emit_aggregate (abfd, p1, &rndx,
+ AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]),
+ "struct");
+ indx++; /* skip aux words */
+ break;
+
+ /* Unions add 1-2 aux words:
+ 1st word is [ST_RFDESCAPE, offset] pointer to union def;
+ 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
+
+ case btUnion: /* Union */
+ ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx);
+ emit_aggregate (abfd, p1, &rndx,
+ AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]),
+ "union");
+ indx++; /* skip aux words */
+ break;
+
+ /* Enumerations add 1-2 aux words:
+ 1st word is [ST_RFDESCAPE, offset] pointer to enum def;
+ 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */
+
+ case btEnum: /* Enumeration */
+ ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx);
+ emit_aggregate (abfd, p1, &rndx,
+ AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]),
+ "enum");
+ indx++; /* skip aux words */
+ break;
+
+ case btTypedef: /* defined via a typedef, isymRef points */
+ strcpy (p1, "typedef");
+ break;
+
+ case btRange: /* subrange of int */
+ strcpy (p1, "subrange");
+ break;
+
+ case btSet: /* pascal sets */
+ strcpy (p1, "set");
+ break;
+
+ case btComplex: /* fortran complex */
+ strcpy (p1, "complex");
+ break;
+
+ case btDComplex: /* fortran double complex */
+ strcpy (p1, "double complex");
+ break;
+
+ case btIndirect: /* forward or unnamed typedef */
+ strcpy (p1, "forward/unamed typedef");
+ break;
+
+ case btFixedDec: /* Fixed Decimal */
+ strcpy (p1, "fixed decimal");
+ break;
+
+ case btFloatDec: /* Float Decimal */
+ strcpy (p1, "float decimal");
+ break;
+
+ case btString: /* Varying Length Character String */
+ strcpy (p1, "string");
+ break;
+
+ case btBit: /* Aligned Bit String */
+ strcpy (p1, "bit");
+ break;
+
+ case btPicture: /* Picture */
+ strcpy (p1, "picture");
+ break;
+
+ case btVoid: /* Void */
+ strcpy (p1, "void");
+ break;
+
+ default:
+ sprintf (p1, "Unknown basic type %d", (int) basic_type);
+ break;
+ }
+
+ p1 += strlen (buffer1);
+
+ /*
+ * If this is a bitfield, get the bitsize.
+ */
+ if (u.ti.fBitfield)
+ {
+ int bitsize;
+
+ bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]);
+ sprintf (p1, " : %d", bitsize);
+ p1 += strlen (buffer1);
+ }
+
+
+ /*
+ * Deal with any qualifiers.
+ */
+ if (qualifiers[0].type != tqNil)
+ {
+ /*
+ * Snarf up any array bounds in the correct order. Arrays
+ * store 5 successive words in the aux. table:
+ * word 0 RNDXR to type of the bounds (ie, int)
+ * word 1 Current file descriptor index
+ * word 2 low bound
+ * word 3 high bound (or -1 if [])
+ * word 4 stride size in bits
+ */
+ for (i = 0; i < 7; i++)
+ {
+ if (qualifiers[i].type == tqArray)
+ {
+ qualifiers[i].low_bound =
+ AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]);
+ qualifiers[i].high_bound =
+ AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]);
+ qualifiers[i].stride =
+ AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]);
+ indx += 5;
+ }
+ }
+
+ /*
+ * Now print out the qualifiers.
+ */
+ for (i = 0; i < 6; i++)
+ {
+ switch (qualifiers[i].type)
+ {
+ case tqNil:
+ case tqMax:
+ break;
+
+ case tqPtr:
+ strcpy (p2, "ptr to ");
+ p2 += sizeof ("ptr to ")-1;
+ break;
+
+ case tqVol:
+ strcpy (p2, "volatile ");
+ p2 += sizeof ("volatile ")-1;
+ break;
+
+ case tqFar:
+ strcpy (p2, "far ");
+ p2 += sizeof ("far ")-1;
+ break;
+
+ case tqProc:
+ strcpy (p2, "func. ret. ");
+ p2 += sizeof ("func. ret. ");
+ break;
+
+ case tqArray:
+ {
+ int first_array = i;
+ int j;
+
+ /* Print array bounds reversed (ie, in the order the C
+ programmer writes them). C is such a fun language.... */
+
+ while (i < 5 && qualifiers[i+1].type == tqArray)
+ i++;
+
+ for (j = i; j >= first_array; j--)
+ {
+ strcpy (p2, "array [");
+ p2 += sizeof ("array [")-1;
+ if (qualifiers[j].low_bound != 0)
+ sprintf (p2,
+ "%ld:%ld {%ld bits}",
+ (long) qualifiers[j].low_bound,
+ (long) qualifiers[j].high_bound,
+ (long) qualifiers[j].stride);
+
+ else if (qualifiers[j].high_bound != -1)
+ sprintf (p2,
+ "%ld {%ld bits}",
+ (long) (qualifiers[j].high_bound + 1),
+ (long) (qualifiers[j].stride));
+
+ else
+ sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride));
+
+ p2 += strlen (p2);
+ strcpy (p2, "] of ");
+ p2 += sizeof ("] of ")-1;
+ }
+ }
+ break;
+ }
+ }
+ }
+
+ strcpy (p2, buffer1);
+ return buffer2;
+}
+
+/* Print information about an ECOFF symbol. */
+
+static void
+DEFUN (ecoff_print_symbol, (abfd, filep, symbol, how),
+ bfd *abfd AND
+ PTR filep AND
+ asymbol *symbol AND
+ bfd_print_symbol_type how)
+{
+ FILE *file = (FILE *)filep;
+
+ switch (how)
+ {
+ case bfd_print_symbol_name:
+ fprintf (file, "%s", symbol->name);
+ break;
+ case bfd_print_symbol_more:
+ if (ecoffsymbol (symbol)->local)
+ {
+ SYMR ecoff_sym;
+
+ ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative,
+ &ecoff_sym);
+ fprintf (file, "ecoff local %lx %x %x",
+ (unsigned long) ecoff_sym.value,
+ (unsigned) ecoff_sym.st, (unsigned) ecoff_sym.sc);
+ }
+ else
+ {
+ EXTR ecoff_ext;
+
+ ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative,
+ &ecoff_ext);
+ fprintf (file, "ecoff extern %lx %x %x",
+ (unsigned long) ecoff_ext.asym.value,
+ (unsigned) ecoff_ext.asym.st,
+ (unsigned) ecoff_ext.asym.sc);
+ }
+ break;
+ case bfd_print_symbol_nm:
+ {
+ CONST char *section_name = symbol->section->name;
+
+ bfd_print_symbol_vandf ((PTR) file, symbol);
+ fprintf (file, " %-5s %s %s",
+ section_name,
+ ecoffsymbol (symbol)->local ? "l" : "e",
+ symbol->name);
+ }
+ break;
+ case bfd_print_symbol_all:
+ /* Print out the symbols in a reasonable way */
+ {
+ char type;
+ int pos;
+ EXTR ecoff_ext;
+ char jmptbl;
+ char cobol_main;
+ char weakext;
+
+ if (ecoffsymbol (symbol)->local)
+ {
+ ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative,
+ &ecoff_ext.asym);
+ type = 'l';
+ pos = (ecoffsymbol (symbol)->native.lnative
+ - ecoff_data (abfd)->external_sym
+ + ecoff_data (abfd)->symbolic_header.iextMax);
+ jmptbl = ' ';
+ cobol_main = ' ';
+ weakext = ' ';
+ }
+ else
+ {
+ ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative,
+ &ecoff_ext);
+ type = 'e';
+ pos = (ecoffsymbol (symbol)->native.enative
+ - ecoff_data (abfd)->external_ext);
+ jmptbl = ecoff_ext.jmptbl ? 'j' : ' ';
+ cobol_main = ecoff_ext.cobol_main ? 'c' : ' ';
+ weakext = ecoff_ext.weakext ? 'w' : ' ';
+ }
+
+ fprintf (file, "[%3d] %c %lx st %x sc %x indx %x %c%c%c %s",
+ pos, type, (unsigned long) ecoff_ext.asym.value,
+ (unsigned) ecoff_ext.asym.st,
+ (unsigned) ecoff_ext.asym.sc,
+ (unsigned) ecoff_ext.asym.index,
+ jmptbl, cobol_main, weakext,
+ symbol->name);
+
+ if (ecoffsymbol (symbol)->fdr != NULL
+ && ecoff_ext.asym.index != indexNil)
+ {
+ unsigned indx;
+ int bigendian;
+ long sym_base;
+ union aux_ext *aux_base;
+
+ indx = ecoff_ext.asym.index;
+
+ /* sym_base is used to map the fdr relative indices which
+ appear in the file to the position number which we are
+ using. */
+ sym_base = ecoffsymbol (symbol)->fdr->isymBase;
+ if (ecoffsymbol (symbol)->local)
+ sym_base += ecoff_data (abfd)->symbolic_header.iextMax;
+
+ /* aux_base is the start of the aux entries for this file;
+ asym.index is an offset from this. */
+ aux_base = (ecoff_data (abfd)->external_aux
+ + ecoffsymbol (symbol)->fdr->iauxBase);
+
+ /* The aux entries are stored in host byte order; the
+ order is indicated by a bit in the fdr. */
+ bigendian = ecoffsymbol (symbol)->fdr->fBigendian;
+
+ /* This switch is basically from gcc/mips-tdump.c */
+ switch (ecoff_ext.asym.st)
+ {
+ case stNil:
+ case stLabel:
+ break;
+
+ case stFile:
+ case stBlock:
+ printf ("\n End+1 symbol: %ld", indx + sym_base);
+ break;
+
+ case stEnd:
+ if (ecoff_ext.asym.sc == scText
+ || ecoff_ext.asym.sc == scInfo)
+ printf ("\n First symbol: %ld", indx + sym_base);
+ else
+ printf ("\n First symbol: %ld",
+ (AUX_GET_ISYM (bigendian,
+ &aux_base[ecoff_ext.asym.index])
+ + sym_base));
+ break;
+
+ case stProc:
+ case stStaticProc:
+ if (MIPS_IS_STAB (&ecoff_ext.asym))
+ ;
+ else if (ecoffsymbol (symbol)->local)
+ printf ("\n End+1 symbol: %-7ld Type: %s",
+ (AUX_GET_ISYM (bigendian,
+ &aux_base[ecoff_ext.asym.index])
+ + sym_base),
+ type_to_string (abfd, aux_base, indx + 1,
+ bigendian));
+ else
+ printf ("\n Local symbol: %d",
+ (indx
+ + sym_base
+ + ecoff_data (abfd)->symbolic_header.iextMax));
+ break;
+
+ default:
+ if (!MIPS_IS_STAB (&ecoff_ext.asym))
+ printf ("\n Type: %s",
+ type_to_string (abfd, aux_base, indx, bigendian));
+ break;
+ }
+ }
+ }
+ break;
+ }
+}
+\f
+/* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in
+ external form. They use a bit which indicates whether the symbol
+ is external. */
+
+/* Swap a reloc in. */
+
+static void
+DEFUN (ecoff_swap_reloc_in, (abfd, ext, intern),
+ bfd *abfd AND
+ RELOC *ext AND
+ struct internal_reloc *intern)
+{
+ intern->r_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_vaddr);
+ if (abfd->xvec->header_byteorder_big_p != false)
+ {
+ intern->r_symndx = (((int) ext->r_bits[0]
+ << RELOC_BITS0_SYMNDX_SH_LEFT_BIG)
+ | ((int) ext->r_bits[1]
+ << RELOC_BITS1_SYMNDX_SH_LEFT_BIG)
+ | ((int) ext->r_bits[2]
+ << RELOC_BITS2_SYMNDX_SH_LEFT_BIG));
+ intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG)
+ >> RELOC_BITS3_TYPE_SH_BIG);
+ intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0;
+ }
+ else
+ {
+ intern->r_symndx = (((int) ext->r_bits[0]
+ << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE)
+ | ((int) ext->r_bits[1]
+ << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE)
+ | ((int) ext->r_bits[2]
+ << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE));
+ intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE)
+ >> RELOC_BITS3_TYPE_SH_LITTLE);
+ intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0;
+ }
+}
+
+/* Swap a reloc out. */
+
+static unsigned int
+DEFUN (ecoff_swap_reloc_out, (abfd, src, dst),
+ bfd *abfd AND
+ PTR src AND
+ PTR dst)
+{
+ struct internal_reloc *intern = (struct internal_reloc *) src;
+ RELOC *ext = (RELOC *) dst;
+
+ bfd_h_put_32 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr);
+ if (abfd->xvec->header_byteorder_big_p != false)
+ {
+ ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG;
+ ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG;
+ ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG;
+ ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG)
+ & RELOC_BITS3_TYPE_BIG)
+ | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0));
+ }
+ else
+ {
+ ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE;
+ ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE;
+ ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE;
+ ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE)
+ & RELOC_BITS3_TYPE_LITTLE)
+ | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0));
+ }
+
+ return RELSZ;
+}
+
+/* ECOFF relocs are either against external symbols, or against
+ sections. If we are producing relocateable output, and the reloc
+ is against an external symbol, the resulting reloc will also be
+ against the same symbol. In such a case, we don't want to change
+ anything about the way the reloc is handled, since it will all be
+ done at final link time. Rather than put special case code into
+ bfd_perform_relocation, all the reloc types use this howto
+ function. It just short circuits the reloc if producing
+ relocateable output against an external symbol. */
+
+static bfd_reloc_status_type
+ecoff_generic_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+{
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ return bfd_reloc_continue;
+}
+
+/* Do a REFHI relocation. The next reloc must be the corresponding
+ REFLO. This has to be done in a function so that carry is handled
+ correctly. */
+
+static bfd_reloc_status_type
+ecoff_refhi_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+{
+ bfd_reloc_status_type ret;
+ arelent *rello;
+ bfd_vma relocation;
+ unsigned long insn;
+ unsigned long val;
+ unsigned long vallo;
+
+ /* If we're relocating, and this an external symbol, we don't want
+ to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ ret = bfd_reloc_ok;
+ if (symbol->section == &bfd_und_section
+ && output_bfd == (bfd *) NULL)
+ ret = bfd_reloc_undefined;
+
+ rello = reloc_entry + 1;
+ BFD_ASSERT (rello->howto->type == ECOFF_R_REFLO
+ && *rello->sym_ptr_ptr == *reloc_entry->sym_ptr_ptr);
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
+ vallo = bfd_get_32 (abfd, (bfd_byte *) data + rello->address) & 0xffff;
+ val = ((insn & 0xffff) << 16) + vallo;
+ val += relocation;
+
+ /* The low order 16 bits are always treated as a signed value.
+ Therefore, a negative value in the low order bits requires an
+ adjustment in the high order bits. We need to make this
+ adjustment in two ways: once for the bits we took from the data,
+ and once for the bits we are putting back in to the data. */
+ if ((vallo & 0x8000) != 0)
+ val -= 0x10000;
+ if ((val & 0x8000) != 0)
+ val += 0x10000;
+
+ insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff);
+ bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
+
+ if (output_bfd != (bfd *) NULL)
+ reloc_entry->address += input_section->output_offset;
+
+ return ret;
+}
+
+/* Do a GPREL relocation. This is a 16 bit value which must become
+ the offset from the gp register. */
+
+static bfd_reloc_status_type
+ecoff_gprel_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+{
+ boolean relocateable;
+ bfd_vma relocation;
+ unsigned long val;
+ unsigned long insn;
+
+ /* If we're relocating, and this an external symbol, we don't want
+ to change anything. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (output_bfd != (bfd *) NULL)
+ relocateable = true;
+ else
+ {
+ relocateable = false;
+ output_bfd = symbol->section->output_section->owner;
+ }
+
+ if (symbol->section == &bfd_und_section
+ && relocateable == false)
+ return bfd_reloc_undefined;
+
+ /* We have to figure out the gp value, so that we can adjust the
+ symbol value correctly. We look up the symbol _gp in the output
+ BFD. If we can't find it, we're stuck. We cache it in the ECOFF
+ target data. */
+ if (ecoff_data (output_bfd)->gp == 0)
+ {
+ if (relocateable != false)
+ {
+ /* Make up a value. */
+ ecoff_data (output_bfd)->gp =
+ symbol->section->output_section->vma + 0x4000;
+ }
+ else
+ {
+ unsigned int count;
+ asymbol **sym;
+ unsigned int i;
+
+ count = bfd_get_symcount (output_bfd);
+ sym = bfd_get_outsymbols (output_bfd);
+
+ /* We should do something more friendly here, but we don't
+ have a good reloc status to return. */
+ if (sym == (asymbol **) NULL)
+ abort ();
+
+ for (i = 0; i < count; i++, sym++)
+ {
+ register CONST char *name;
+
+ name = bfd_asymbol_name (*sym);
+ if (*name == '_' && strcmp (name, "_gp") == 0)
+ {
+ ecoff_data (output_bfd)->gp = bfd_asymbol_value (*sym);
+ break;
+ }
+ }
+
+ /* We should do something more friendly here, but we don't have
+ a good reloc status to return. */
+ if (i >= count)
+ abort ();
+ }
+ }
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
+
+ insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
+
+ /* Set val to the offset into the section (if we are relocating
+ against an external symbol, insn & 0xffff will be zero and so
+ will reloc_entry->addend). */
+ val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
+ if (val & 0x8000)
+ val -= 0x10000;
+
+ /* Adjust val for the final section location and GP value. */
+ val += (relocation - ecoff_data (output_bfd)->gp);
+
+ insn = (insn &~ 0xffff) | (val & 0xffff);
+ bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
+
+ if (relocateable != false)
+ reloc_entry->address += input_section->output_offset;
+
+ /* Make sure it fit in 16 bits. */
+ if (val >= 0x8000 && val < 0xffff8000)
+ return bfd_reloc_outofrange;
+
+ return bfd_reloc_ok;
+}
+
+/* How to process the various relocs types. */
+
+static reloc_howto_type ecoff_howto_table[] =
+{
+ /* Reloc type 0 is ignored. The reloc reading code ensures that
+ this is a reference to the .abs section, which will cause
+ bfd_perform_relocation to do nothing. */
+ HOWTO (ECOFF_R_IGNORE, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ false, /* complain_on_overflow */
+ 0, /* special_function */
+ "IGNORE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 16 bit reference to a symbol, normally from a data section. */
+ HOWTO (ECOFF_R_REFHALF, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ true, /* complain_on_overflow */
+ ecoff_generic_reloc, /* special_function */
+ "REFHALF", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 32 bit reference to a symbol, normally from a data section. */
+ HOWTO (ECOFF_R_REFWORD, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ true, /* complain_on_overflow */
+ ecoff_generic_reloc, /* special_function */
+ "REFWORD", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 26 bit absolute jump address. */
+ HOWTO (ECOFF_R_JMPADDR, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ true, /* complain_on_overflow */
+ ecoff_generic_reloc, /* special_function */
+ "JMPADDR", /* name */
+ true, /* partial_inplace */
+ 0x3ffffff, /* src_mask */
+ 0x3ffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The high 16 bits of a symbol value. Handled by the function
+ ecoff_refhi_reloc. */
+ HOWTO (ECOFF_R_REFHI, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ true, /* complain_on_overflow */
+ ecoff_refhi_reloc, /* special_function */
+ "REFHI", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* The low 16 bits of a symbol value. */
+ HOWTO (ECOFF_R_REFLO, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ true, /* complain_on_overflow */
+ ecoff_generic_reloc, /* special_function */
+ "REFLO", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A reference to an offset from the gp register. Handled by the
+ function ecoff_gprel_reloc. */
+ HOWTO (ECOFF_R_GPREL, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ true, /* complain_on_overflow */
+ ecoff_gprel_reloc, /* special_function */
+ "GPREL", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A reference to a literal using an offset from the gp register.
+ Handled by the function ecoff_gprel_reloc. */
+ HOWTO (ECOFF_R_LITERAL, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize (obsolete) */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ false, /* absolute (obsolete) */
+ true, /* complain_on_overflow */
+ ecoff_gprel_reloc, /* special_function */
+ "LITERAL", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false) /* pcrel_offset */
+};
+
+/* Read in the relocs for a section. */
+
+static boolean
+DEFUN (ecoff_slurp_reloc_table, (abfd, section, symbols),
+ bfd *abfd AND
+ asection *section AND
+ asymbol **symbols)
+{
+ RELOC *external_relocs;
+ arelent *internal_relocs;
+ arelent *rptr;
+ unsigned int i;
+
+ if (section->relocation != (arelent *) NULL
+ || section->reloc_count == 0
+ || (section->flags & SEC_CONSTRUCTOR) != 0)
+ return true;
+
+ if (ecoff_slurp_symbol_table (abfd) == false)
+ return false;
+
+ internal_relocs = (arelent *) bfd_alloc (abfd,
+ (sizeof (arelent)
+ * section->reloc_count));
+ external_relocs = (RELOC *) bfd_alloc (abfd, RELSZ * section->reloc_count);
+ if (internal_relocs == (arelent *) NULL
+ || external_relocs == (RELOC *) NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0)
+ return false;
+ if (bfd_read (external_relocs, 1, RELSZ * section->reloc_count, abfd)
+ != RELSZ * section->reloc_count)
+ {
+ bfd_error = system_call_error;
+ return false;
+ }
+
+ for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++)
+ {
+ struct internal_reloc intern;
+
+ ecoff_swap_reloc_in (abfd, external_relocs + i, &intern);
+
+ if (intern.r_type > ECOFF_R_LITERAL)
+ abort ();
+
+ if (intern.r_extern)
+ {
+ /* r_symndx is an index into the external symbols. */
+ BFD_ASSERT (intern.r_symndx >= 0
+ && (intern.r_symndx
+ < ecoff_data (abfd)->symbolic_header.iextMax));
+ rptr->sym_ptr_ptr = symbols + intern.r_symndx;
+ rptr->addend = 0;
+ }
+ else
+ {
+ CONST char *sec_name;
+ asection *sec;
+
+ /* r_symndx is a section key. */
+ switch (intern.r_symndx)
+ {
+ case RELOC_SECTION_TEXT: sec_name = ".text"; break;
+ case RELOC_SECTION_RDATA: sec_name = ".rdata"; break;
+ case RELOC_SECTION_DATA: sec_name = ".data"; break;
+ case RELOC_SECTION_SDATA: sec_name = ".sdata"; break;
+ case RELOC_SECTION_SBSS: sec_name = ".sbss"; break;
+ case RELOC_SECTION_BSS: sec_name = ".bss"; break;
+ case RELOC_SECTION_INIT: sec_name = ".init"; break;
+ case RELOC_SECTION_LIT8: sec_name = ".lit8"; break;
+ case RELOC_SECTION_LIT4: sec_name = ".lit4"; break;
+ default: abort ();
+ }
+
+ sec = bfd_get_section_by_name (abfd, sec_name);
+ if (sec == (asection *) NULL)
+ abort ();
+ rptr->sym_ptr_ptr = sec->symbol_ptr_ptr;
+
+ rptr->addend = - bfd_get_section_vma (abfd, sec);
+ if (intern.r_type == ECOFF_R_GPREL
+ || intern.r_type == ECOFF_R_LITERAL)
+ rptr->addend += ecoff_data (abfd)->gp;
+ }
+
+ rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section);
+ rptr->howto = &ecoff_howto_table[intern.r_type];
+
+ /* If the type is ECOFF_R_IGNORE, make sure this is a reference
+ to the absolute section so that the reloc is ignored. */
+ if (intern.r_type == ECOFF_R_IGNORE)
+ rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
+ }
+
+ bfd_release (abfd, external_relocs);
+
+ section->relocation = internal_relocs;
+
+ return true;
+}
+
+/* Get a canonical list of relocs. */
+
+static unsigned int
+DEFUN (ecoff_canonicalize_reloc, (abfd, section, relptr, symbols),
+ bfd *abfd AND
+ asection *section AND
+ arelent **relptr AND
+ asymbol **symbols)
+{
+ unsigned int count;
+
+ if (section->flags & SEC_CONSTRUCTOR)
+ {
+ arelent_chain *chain;
+
+ /* This section has relocs made up by us, not the file, so take
+ them out of their chain and place them into the data area
+ provided. */
+ for (count = 0, chain = section->constructor_chain;
+ count < section->reloc_count;
+ count++, chain = chain->next)
+ *relptr++ = &chain->relent;
+ }
+ else
+ {
+ arelent *tblptr;
+
+ if (ecoff_slurp_reloc_table (abfd, section, symbols) == false)
+ return 0;
+
+ tblptr = section->relocation;
+ if (tblptr == (arelent *) NULL)
+ return 0;
+
+ for (count = 0; count < section->reloc_count; count++)
+ *relptr++ = tblptr++;
+ }
+
+ *relptr = (arelent *) NULL;
+
+ return section->reloc_count;
+}
+\f
+/* Provided a BFD, a section and an offset into the section, calculate
+ and return the name of the source file and the line nearest to the
+ wanted location. */
+
+static boolean
+DEFUN (ecoff_find_nearest_line, (abfd,
+ section,
+ ignore_symbols,
+ offset,
+ filename_ptr,
+ functionname_ptr,
+ retline_ptr),
+ bfd *abfd AND
+ asection *section AND
+ asymbol **ignore_symbols AND
+ bfd_vma offset AND
+ CONST char **filename_ptr AND
+ CONST char **functionname_ptr AND
+ unsigned int *retline_ptr)
+{
+ FDR *fdr_ptr;
+ FDR *fdr_start;
+ FDR *fdr_end;
+ FDR *fdr_hold;
+ struct pdr_ext *pdr_ptr;
+ struct pdr_ext *pdr_end;
+ PDR pdr;
+ unsigned char *line_ptr;
+ unsigned char *line_end;
+ int lineno;
+
+ /* If we're not in the .text section, we don't have any line
+ numbers. */
+ if (strcmp (section->name, _TEXT) != 0)
+ return false;
+
+ /* Make sure we have the FDR's. */
+ if (ecoff_slurp_symbolic_info (abfd) == false
+ || bfd_get_symcount (abfd) == 0)
+ return false;
+
+ /* Each file descriptor (FDR) has a memory address. Here we track
+ down which FDR we want. The FDR's are stored in increasing
+ memory order. If speed is ever important, this can become a
+ binary search. We must ignore FDR's with no PDR entries; they
+ will have the adr of the FDR before or after them. */
+ fdr_start = ecoff_data (abfd)->fdr;
+ fdr_end = fdr_start + ecoff_data (abfd)->symbolic_header.ifdMax;
+ fdr_hold = (FDR *) NULL;
+ for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++)
+ {
+ if (offset < fdr_ptr->adr)
+ break;
+ if (fdr_ptr->cpd > 0)
+ fdr_hold = fdr_ptr;
+ }
+ if (fdr_hold == (FDR *) NULL)
+ return false;
+ fdr_ptr = fdr_hold;
+
+ /* Each FDR has a list of procedure descriptors (PDR). PDR's also
+ have an address, which is relative to the FDR address, and are
+ also stored in increasing memory order. */
+ offset -= fdr_ptr->adr;
+ pdr_ptr = ecoff_data (abfd)->external_pdr + fdr_ptr->ipdFirst;
+ pdr_end = pdr_ptr + fdr_ptr->cpd;
+ ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr);
+ if (offset < pdr.adr)
+ return false;
+ for (pdr_ptr++; pdr_ptr < pdr_end; pdr_ptr++)
+ {
+ ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr);
+ if (offset < pdr.adr)
+ break;
+ }
+
+ /* Now we can look for the actual line number. The line numbers are
+ stored in a very funky format, which I won't try to describe.
+ Note that right here pdr_ptr and pdr hold the PDR *after* the one
+ we want; we need this to compute line_end. */
+ line_end = ecoff_data (abfd)->line;
+ if (pdr_ptr == pdr_end)
+ line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine;
+ else
+ line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset;
+
+ /* Now change pdr and pdr_ptr to the one we want. */
+ pdr_ptr--;
+ ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr);
+
+ offset -= pdr.adr;
+ lineno = pdr.lnLow;
+ line_ptr = (ecoff_data (abfd)->line
+ + fdr_ptr->cbLineOffset
+ + pdr.cbLineOffset);
+ while (line_ptr < line_end)
+ {
+ int delta;
+ int count;
+
+ delta = *line_ptr >> 4;
+ if (delta >= 0x8)
+ delta -= 0x10;
+ count = (*line_ptr & 0xf) + 1;
+ ++line_ptr;
+ if (delta == -8)
+ {
+ delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff);
+ if (delta >= 0x8000)
+ delta -= 0x10000;
+ line_ptr += 2;
+ }
+ lineno += delta;
+ if (offset < count * 4)
+ break;
+ offset -= count * 4;
+ }
+
+ /* If offset is too large, this line is not interesting. */
+ if (offset > 100)
+ return false;
+
+ /* If fdr_ptr->rss is -1, then this file does not have full symbols,
+ at least according to gdb/mipsread.c. */
+ if (fdr_ptr->rss == -1)
+ {
+ *filename_ptr = NULL;
+ if (pdr.isym == -1)
+ *functionname_ptr = NULL;
+ else
+ {
+ EXTR proc_ext;
+
+ ecoff_swap_ext_in (abfd,
+ (ecoff_data (abfd)->external_ext
+ + pdr.isym),
+ &proc_ext);
+ *functionname_ptr = ecoff_data (abfd)->ssext + proc_ext.asym.iss;
+ }
+ }
+ else
+ {
+ SYMR proc_sym;
+
+ *filename_ptr = ecoff_data (abfd)->ss + fdr_ptr->issBase + fdr_ptr->rss;
+ ecoff_swap_sym_in (abfd,
+ (ecoff_data (abfd)->external_sym
+ + fdr_ptr->isymBase
+ + pdr.isym),
+ &proc_sym);
+ *functionname_ptr = (ecoff_data (abfd)->ss
+ + fdr_ptr->issBase
+ + proc_sym.iss);
+ }
+ *retline_ptr = lineno;
+ return true;
+}
+\f
+/* We can't use the generic linking routines for ECOFF, because we
+ have to handle all the debugging information. The generic link
+ routine just works out the section contents and attaches a list of
+ symbols.
+
+ We link by looping over all the seclets. We make two passes. On
+ the first we set the actual section contents and determine the size
+ of the debugging information. On the second we accumulate the
+ debugging information and write it out.
+
+ This currently always accumulates the debugging information, which
+ is incorrect, because it ignores the -s and -S options of the
+ linker. The linker needs to be modified to give us that
+ information in a more useful format (currently it just provides a
+ list of symbols which should appear in the output file). */
+
+/* Clear the output_has_begun flag for all the input BFD's. We use it
+ to avoid linking in the debugging information for a BFD more than
+ once. */
+
+static void
+DEFUN (ecoff_clear_output_flags, (abfd),
+ bfd *abfd)
+{
+ register asection *o;
+ register bfd_seclet_type *p;
+
+ for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ for (p = o->seclets_head;
+ p != (bfd_seclet_type *) NULL;
+ p = p->next)
+ if (p->type == bfd_indirect_seclet)
+ p->u.indirect.section->owner->output_has_begun = false;
+}
+
+/* Handle an indirect seclet on the first pass. Set the contents of
+ the output section, and accumulate the debugging information if
+ any. */
+
+static boolean
+DEFUN (ecoff_rel, (output_bfd, seclet, output_section, data, relocateable),
+ bfd *output_bfd AND
+ bfd_seclet_type *seclet AND
+ asection *output_section AND
+ PTR data AND
+ boolean relocateable)
+{
+ bfd *input_bfd;
+ HDRR *output_symhdr;
+ HDRR *input_symhdr;
+ ecoff_symbol_type *sym_ptr;
+ ecoff_symbol_type *sym_end;
+
+ if ((output_section->flags & SEC_HAS_CONTENTS)
+ && !(output_section->flags & SEC_NEVER_LOAD)
+ && (output_section->flags & SEC_LOAD)
+ && seclet->size)
+ {
+ data = (PTR) bfd_get_relocated_section_contents (output_bfd,
+ seclet,
+ data,
+ relocateable);
+ if (bfd_set_section_contents (output_bfd,
+ output_section,
+ data,
+ seclet->offset,
+ seclet->size)
+ == false)
+ {
+ abort();
+ }
+ }
+
+ input_bfd = seclet->u.indirect.section->owner;
+
+ /* We want to figure out how much space will be required to
+ incorporate all the debugging information from input_bfd. We use
+ the output_has_begun field to avoid adding it in more than once.
+ The actual incorporation is done in the second pass, in
+ ecoff_get_debug. The code has to parallel that code in its
+ manipulations of output_symhdr. */
+
+ if (input_bfd->output_has_begun)
+ return true;
+ input_bfd->output_has_begun = true;
+
+ output_symhdr = &ecoff_data (output_bfd)->symbolic_header;
+
+ if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour)
+ {
+ asymbol **symbols;
+ asymbol **sym_ptr;
+ asymbol **sym_end;
+
+ /* We just accumulate local symbols from a non-ECOFF BFD. The
+ external symbols are handled separately. */
+
+ symbols = (asymbol **) bfd_alloc (output_bfd,
+ get_symtab_upper_bound (input_bfd));
+ if (symbols == (asymbol **) NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols);
+
+ for (sym_ptr = symbols; sym_ptr < sym_end; sym_ptr++)
+ {
+ size_t len;
+
+ len = strlen ((*sym_ptr)->name);
+ if (((*sym_ptr)->flags & BSF_EXPORT) == 0)
+ {
+ ++output_symhdr->isymMax;
+ output_symhdr->issMax += len + 1;
+ }
+ }
+
+ bfd_release (output_bfd, (PTR) symbols);
+
+ ++output_symhdr->ifdMax;
+
+ return true;
+ }
+
+ /* We simply add in the information from another ECOFF BFD. First
+ we make sure we have the symbolic information. */
+ if (ecoff_slurp_symbol_table (input_bfd) == false)
+ return false;
+ if (bfd_get_symcount (input_bfd) == 0)
+ return true;
+
+ input_symhdr = &ecoff_data (input_bfd)->symbolic_header;
+
+ /* Figure out how much information we are going to be putting in.
+ The external symbols are handled separately. */
+ output_symhdr->ilineMax += input_symhdr->ilineMax;
+ output_symhdr->cbLine += input_symhdr->cbLine;
+ output_symhdr->idnMax += input_symhdr->idnMax;
+ output_symhdr->ipdMax += input_symhdr->ipdMax;
+ output_symhdr->isymMax += input_symhdr->isymMax;
+ output_symhdr->ioptMax += input_symhdr->ioptMax;
+ output_symhdr->iauxMax += input_symhdr->iauxMax;
+ output_symhdr->issMax += input_symhdr->issMax;
+ output_symhdr->ifdMax += input_symhdr->ifdMax;
+
+ /* The RFD's are special, since we create them if needed. */
+ if (input_symhdr->crfd > 0)
+ output_symhdr->crfd += input_symhdr->crfd;
+ else
+ output_symhdr->crfd += input_symhdr->ifdMax;
+
+ return true;
+}
+
+/* Handle an arbitrary seclet on the first pass. */
+
+static boolean
+DEFUN (ecoff_dump_seclet, (abfd, seclet, section, data, relocateable),
+ bfd *abfd AND
+ bfd_seclet_type *seclet AND
+ asection *section AND
+ PTR data AND
+ boolean relocateable)
+{
+ switch (seclet->type)
+ {
+ case bfd_indirect_seclet:
+ /* The contents of this section come from another one somewhere
+ else. */
+ return ecoff_rel (abfd, seclet, section, data, relocateable);
+
+ case bfd_fill_seclet:
+ /* Fill in the section with fill.value. This is used to pad out
+ sections, but we must avoid padding the .bss section. */
+ if ((section->flags & SEC_HAS_CONTENTS) == 0)
+ {
+ if (seclet->u.fill.value != 0)
+ abort ();
+ }
+ else
+ {
+ char *d = (char *) bfd_alloc (abfd, seclet->size);
+ unsigned int i;
+ boolean ret;
+
+ for (i = 0; i < seclet->size; i+=2)
+ d[i] = seclet->u.fill.value >> 8;
+ for (i = 1; i < seclet->size; i+=2)
+ d[i] = seclet->u.fill.value;
+ ret = bfd_set_section_contents (abfd, section, d, seclet->offset,
+ seclet->size);
+ bfd_release (abfd, (PTR) d);
+ return ret;
+ }
+ break;
+
+ default:
+ abort();
+ }
+
+ return true;
+}
+
+/* Add a string to the debugging information we are accumulating for a
+ file. Return the offset from the fdr string base or from the
+ external string base. */
+
+static long
+DEFUN (ecoff_add_string, (output_bfd, fdr, string, external),
+ bfd *output_bfd AND
+ FDR *fdr AND
+ CONST char *string AND
+ boolean external)
+{
+ HDRR *symhdr;
+ size_t len;
+ long ret;
+
+ symhdr = &ecoff_data (output_bfd)->symbolic_header;
+ len = strlen (string);
+ if (external)
+ {
+ strcpy (ecoff_data (output_bfd)->ssext + symhdr->issExtMax, string);
+ ret = symhdr->issExtMax;
+ symhdr->issExtMax += len + 1;
+ }
+ else
+ {
+ strcpy (ecoff_data (output_bfd)->ss + symhdr->issMax, string);
+ ret = fdr->cbSs;
+ symhdr->issMax += len + 1;
+ fdr->cbSs += len + 1;
+ }
+ return ret;
+}
+
+/* Accumulate the debugging information from an input section. */
+
+static boolean
+DEFUN (ecoff_get_debug, (output_bfd, seclet, section),
+ bfd *output_bfd AND
+ bfd_seclet_type *seclet AND
+ asection *section)
+{
+ bfd *input_bfd;
+ HDRR *output_symhdr;
+ HDRR *input_symhdr;
+ ecoff_data_type *output_ecoff;
+ ecoff_data_type *input_ecoff;
+ unsigned int count;
+ struct sym_ext *sym_out;
+ struct ext_ext *ext_out;
+ ecoff_symbol_type *esym_ptr;
+ ecoff_symbol_type *esym_end;
+ FDR *fdr_ptr;
+ FDR *fdr_end;
+ struct fdr_ext *fdr_out;
+
+ input_bfd = seclet->u.indirect.section->owner;
+
+ /* Don't get the information more than once. */
+ if (input_bfd->output_has_begun)
+ return true;
+ input_bfd->output_has_begun = true;
+
+ output_ecoff = ecoff_data (output_bfd);
+ output_symhdr = &output_ecoff->symbolic_header;
+
+ if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour)
+ {
+ FDR fdr;
+ asymbol **symbols;
+ asymbol **sym_ptr;
+ asymbol **sym_end;
+
+ /* This is not an ECOFF BFD. Just gather the symbols. */
+
+ memset (&fdr, 0, sizeof fdr);
+
+ fdr.adr = bfd_get_section_vma (output_bfd, section) + seclet->offset;
+ fdr.issBase = output_symhdr->issMax;
+ fdr.cbSs = 0;
+ fdr.rss = ecoff_add_string (output_bfd,
+ &fdr,
+ bfd_get_filename (input_bfd),
+ false);
+ fdr.isymBase = output_symhdr->isymMax;
+
+ /* Get the local symbols from the input BFD. */
+ symbols = (asymbol **) bfd_alloc (output_bfd,
+ get_symtab_upper_bound (input_bfd));
+ if (symbols == (asymbol **) NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols);
+
+ /* Handle the local symbols. Any external symbols are handled
+ separately. */
+ fdr.csym = 0;
+ for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++)
+ {
+ SYMR internal_sym;
+
+ if (((*sym_ptr)->flags & BSF_EXPORT) != 0)
+ continue;
+ memset (&internal_sym, 0, sizeof internal_sym);
+ internal_sym.iss = ecoff_add_string (output_bfd,
+ &fdr,
+ (*sym_ptr)->name,
+ false);
+ internal_sym.value = (*sym_ptr)->value;
+ internal_sym.st = stNil;
+ internal_sym.sc = scUndefined;
+ internal_sym.index = indexNil;
+ ecoff_swap_sym_out (output_bfd, &internal_sym,
+ (output_ecoff->external_sym
+ + output_symhdr->isymMax));
+ ++fdr.csym;
+ ++output_symhdr->isymMax;
+ }
+
+ bfd_release (output_bfd, (PTR) symbols);
+
+ /* Leave everything else in the FDR zeroed out. This will cause
+ the lang field to be langC. The fBigendian field will
+ indicate little endian format, but it doesn't matter because
+ it only applies to aux fields and there are none. */
+
+ ecoff_swap_fdr_out (output_bfd, &fdr,
+ (output_ecoff->external_fdr
+ + output_symhdr->ifdMax));
+ ++output_symhdr->ifdMax;
+ return true;
+ }
+
+ /* This is an ECOFF BFD. We want to grab the information from
+ input_bfd and attach it to output_bfd. */
+ count = bfd_get_symcount (input_bfd);
+ if (count == 0)
+ return true;
+ input_ecoff = ecoff_data (input_bfd);
+ input_symhdr = &input_ecoff->symbolic_header;
+
+ /* I think that it is more efficient to simply copy the debugging
+ information from the input BFD to the output BFD. Because ECOFF
+ uses relative pointers for most of the debugging information,
+ only a little of it has to be changed at all. */
+
+ /* Swap in the local symbols, adjust their values, and swap them out
+ again. The external symbols are handled separately. */
+ sym_out = output_ecoff->external_sym + output_symhdr->isymMax;
+
+ esym_ptr = ecoff_data (input_bfd)->canonical_symbols;
+ esym_end = esym_ptr + count;
+ for (; esym_ptr < esym_end; esym_ptr++)
+ {
+ if (esym_ptr->local)
+ {
+ SYMR sym;
+
+ ecoff_swap_sym_in (input_bfd, esym_ptr->native.lnative, &sym);
+ if (! bfd_is_com_section (esym_ptr->symbol.section)
+ && (esym_ptr->symbol.flags & BSF_DEBUGGING) == 0
+ && esym_ptr->symbol.section != &bfd_und_section)
+ sym.value = (esym_ptr->symbol.value
+ + esym_ptr->symbol.section->output_offset
+ + esym_ptr->symbol.section->output_section->vma);
+ ecoff_swap_sym_out (output_bfd, &sym, sym_out);
+ ++sym_out;
+ }
+ }
+
+ /* That should have accounted for all the local symbols in
+ input_bfd. */
+ BFD_ASSERT ((sym_out - output_ecoff->external_sym) - output_symhdr->isymMax
+ == input_symhdr->isymMax);
+
+ /* Copy the information that does not need swapping. */
+ memcpy (output_ecoff->line + output_symhdr->cbLine,
+ input_ecoff->line,
+ input_symhdr->cbLine * sizeof (unsigned char));
+ memcpy (output_ecoff->external_aux + output_symhdr->iauxMax,
+ input_ecoff->external_aux,
+ input_symhdr->iauxMax * sizeof (union aux_ext));
+ memcpy (output_ecoff->ss + output_symhdr->issMax,
+ input_ecoff->ss,
+ input_symhdr->issMax * sizeof (char));
+
+ /* Some of the information may need to be swapped. */
+ if (output_bfd->xvec->header_byteorder_big_p
+ == input_bfd->xvec->header_byteorder_big_p)
+ {
+ /* The two BFD's have the same endianness, so memcpy will
+ suffice. */
+ memcpy (output_ecoff->external_dnr + output_symhdr->idnMax,
+ input_ecoff->external_dnr,
+ input_symhdr->idnMax * sizeof (struct dnr_ext));
+ memcpy (output_ecoff->external_pdr + output_symhdr->ipdMax,
+ input_ecoff->external_pdr,
+ input_symhdr->ipdMax * sizeof (struct pdr_ext));
+ memcpy (output_ecoff->external_opt + output_symhdr->ioptMax,
+ input_ecoff->external_opt,
+ input_symhdr->ioptMax * sizeof (struct opt_ext));
+ }
+ else
+ {
+ struct dnr_ext *dnr_in;
+ struct dnr_ext *dnr_end;
+ struct dnr_ext *dnr_out;
+ struct pdr_ext *pdr_in;
+ struct pdr_ext *pdr_end;
+ struct pdr_ext *pdr_out;
+ struct opt_ext *opt_in;
+ struct opt_ext *opt_end;
+ struct opt_ext *opt_out;
+
+ /* The two BFD's have different endianness, so we must swap
+ everything in and out. This code would always work, but it
+ would be slow in the normal case. */
+ dnr_in = input_ecoff->external_dnr;
+ dnr_end = dnr_in + input_symhdr->idnMax;
+ dnr_out = output_ecoff->external_dnr + output_symhdr->idnMax;
+ for (; dnr_in < dnr_end; dnr_in++, dnr_out++)
+ {
+ DNR dnr;
+
+ ecoff_swap_dnr_in (input_bfd, dnr_in, &dnr);
+ ecoff_swap_dnr_out (output_bfd, &dnr, dnr_out);
+ }
+ pdr_in = input_ecoff->external_pdr;
+ pdr_end = pdr_in + input_symhdr->ipdMax;
+ pdr_out = output_ecoff->external_pdr + output_symhdr->ipdMax;
+ for (; pdr_in < pdr_end; pdr_in++, pdr_out++)
+ {
+ PDR pdr;
+
+ ecoff_swap_pdr_in (input_bfd, pdr_in, &pdr);
+ ecoff_swap_pdr_out (output_bfd, &pdr, pdr_out);
+ }
+ opt_in = input_ecoff->external_opt;
+ opt_end = opt_in + input_symhdr->ioptMax;
+ opt_out = output_ecoff->external_opt + output_symhdr->ioptMax;
+ for (; opt_in < opt_end; opt_in++, opt_out++)
+ {
+ OPTR opt;
+
+ ecoff_swap_opt_in (input_bfd, opt_in, &opt);
+ ecoff_swap_opt_out (output_bfd, &opt, opt_out);
+ }
+ }
+
+ /* Set ifdbase so that the external symbols know how to adjust their
+ ifd values. */
+ input_ecoff->ifdbase = output_symhdr->ifdMax;
+
+ fdr_ptr = input_ecoff->fdr;
+ fdr_end = fdr_ptr + input_symhdr->ifdMax;
+ fdr_out = output_ecoff->external_fdr + output_symhdr->ifdMax;
+ for (; fdr_ptr < fdr_end; fdr_ptr++, fdr_out++)
+ {
+ FDR fdr;
+
+ fdr = *fdr_ptr;
+
+ /* The memory address for this fdr is the address for the seclet
+ plus the offset to this fdr within input_bfd. */
+ fdr.adr = (bfd_get_section_vma (output_bfd, section)
+ + seclet->offset
+ + (fdr_ptr->adr - input_ecoff->fdr->adr));
+
+ fdr.issBase += output_symhdr->issMax;
+ fdr.isymBase += output_symhdr->isymMax;
+ fdr.ilineBase += output_symhdr->ilineMax;
+ fdr.ioptBase += output_symhdr->ioptMax;
+ fdr.ipdFirst += output_symhdr->ipdMax;
+ fdr.iauxBase += output_symhdr->iauxMax;
+ fdr.rfdBase += output_symhdr->crfd;
+
+ /* If there are no RFD's, we are going to add some. We don't
+ want to adjust irfd for this, so that all the FDR's can share
+ the RFD's. */
+ if (input_symhdr->crfd == 0)
+ fdr.crfd = input_symhdr->ifdMax;
+
+ if (fdr.cbLine != 0)
+ fdr.cbLineOffset += output_symhdr->cbLine;
+
+ ecoff_swap_fdr_out (output_bfd, &fdr, fdr_out);
+ }
+
+ if (input_symhdr->crfd > 0)
+ {
+ struct rfd_ext *rfd_in;
+ struct rfd_ext *rfd_end;
+ struct rfd_ext *rfd_out;
+
+ /* Swap and adjust the RFD's. RFD's are only created by the
+ linker, so this will only be necessary if one of the input
+ files is the result of a partial link. Presumably all
+ necessary RFD's are present. */
+ rfd_in = input_ecoff->external_rfd;
+ rfd_end = rfd_in + input_symhdr->crfd;
+ rfd_out = output_ecoff->external_rfd + output_symhdr->crfd;
+ for (; rfd_in < rfd_end; rfd_in++, rfd_out++)
+ {
+ RFDT rfd;
+
+ ecoff_swap_rfd_in (input_bfd, rfd_in, &rfd);
+ rfd += output_symhdr->ifdMax;
+ ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out);
+ }
+ output_symhdr->crfd += input_symhdr->crfd;
+ }
+ else
+ {
+ struct rfd_ext *rfd_out;
+ struct rfd_ext *rfd_end;
+ RFDT rfd;
+
+ /* Create RFD's. Some of the debugging information includes
+ relative file indices. These indices are taken as indices to
+ the RFD table if there is one, or to the global table if
+ there is not. If we did not create RFD's, we would have to
+ parse and adjust all the debugging information which contains
+ file indices. */
+ rfd = output_symhdr->ifdMax;
+ rfd_out = output_ecoff->external_rfd + output_symhdr->crfd;
+ rfd_end = rfd_out + input_symhdr->ifdMax;
+ for (; rfd_out < rfd_end; rfd_out++, rfd++)
+ ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out);
+ output_symhdr->crfd += input_symhdr->ifdMax;
+ }
+
+ /* Combine the register masks. */
+ {
+ int i;
+
+ output_ecoff->gprmask |= input_ecoff->gprmask;
+ for (i = 0; i < 3; i++)
+ output_ecoff->cprmask[i] |= input_ecoff->cprmask[i];
+ }
+
+ /* Update the counts. */
+ output_symhdr->ilineMax += input_symhdr->ilineMax;
+ output_symhdr->cbLine += input_symhdr->cbLine;
+ output_symhdr->idnMax += input_symhdr->idnMax;
+ output_symhdr->ipdMax += input_symhdr->ipdMax;
+ output_symhdr->isymMax += input_symhdr->isymMax;
+ output_symhdr->ioptMax += input_symhdr->ioptMax;
+ output_symhdr->iauxMax += input_symhdr->iauxMax;
+ output_symhdr->issMax += input_symhdr->issMax;
+ output_symhdr->ifdMax += input_symhdr->ifdMax;
+
+ return true;
+}
+
+/* This is the actual link routine. It makes two passes over all the
+ seclets. */
+
+static boolean
+DEFUN (ecoff_bfd_seclet_link, (abfd, data, relocateable),
+ bfd *abfd AND
+ PTR data AND
+ boolean relocateable)
+{
+ HDRR *symhdr;
+ int ipass;
+ register asection *o;
+ register bfd_seclet_type *p;
+ asymbol **sym_ptr_ptr;
+ bfd_size_type size;
+ char *raw;
+
+ /* We accumulate the debugging information counts in the symbolic
+ header. */
+ symhdr = &ecoff_data (abfd)->symbolic_header;
+ symhdr->magic = magicSym;
+ /* FIXME: What should the version stamp be? */
+ symhdr->vstamp = 0;
+ symhdr->ilineMax = 0;
+ symhdr->cbLine = 0;
+ symhdr->idnMax = 0;
+ symhdr->ipdMax = 0;
+ symhdr->isymMax = 0;
+ symhdr->ioptMax = 0;
+ symhdr->iauxMax = 0;
+ symhdr->issMax = 0;
+ symhdr->issExtMax = 0;
+ symhdr->ifdMax = 0;
+ symhdr->crfd = 0;
+ symhdr->iextMax = 0;
+
+ /* We need to copy over the debugging symbols from each input BFD.
+ When we do this copying, we have to adjust the text address in
+ the FDR structures, so we have to know the text address used for
+ the input BFD. Since we only want to copy the symbols once per
+ input BFD, but we are going to look at each input BFD multiple
+ times (once for each section it provides), we arrange to always
+ look at the text section first. That means that when we copy the
+ debugging information, we always know the text address. So we
+ actually do each pass in two sub passes; first the text sections,
+ then the non-text sections. We use the output_has_begun flag to
+ determine whether we have copied over the debugging information
+ yet. */
+
+ /* Do the first pass: set the output section contents and count the
+ debugging information. */
+ ecoff_clear_output_flags (abfd);
+ for (ipass = 0; ipass < 2; ipass++)
+ {
+ for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ {
+ /* For SEC_CODE sections, (flags & SEC_CODE) == 0 is false,
+ so they are done on pass 0. For other sections the
+ expression is true, so they are done on pass 1. */
+ if (((o->flags & SEC_CODE) == 0) != ipass)
+ continue;
+
+ for (p = o->seclets_head;
+ p != (bfd_seclet_type *) NULL;
+ p = p->next)
+ {
+ if (ecoff_dump_seclet (abfd, p, o, data, relocateable)
+ == false)
+ return false;
+ }
+ }
+ }
+
+ /* We handle the external symbols differently. We use the ones
+ attached to the output_bfd. The linker will have already
+ determined which symbols are to be attached. Here we just
+ determine how much space we will need for them. */
+ sym_ptr_ptr = bfd_get_outsymbols (abfd);
+ if (sym_ptr_ptr != NULL)
+ {
+ asymbol **sym_end;
+
+ sym_end = sym_ptr_ptr + bfd_get_symcount (abfd);
+ for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++)
+ {
+ if (((*sym_ptr_ptr)->flags & BSF_DEBUGGING) == 0
+ && ((*sym_ptr_ptr)->flags & BSF_LOCAL) == 0)
+ {
+ ++symhdr->iextMax;
+ symhdr->issExtMax += strlen ((*sym_ptr_ptr)->name) + 1;
+ }
+ }
+ }
+
+ /* Adjust the counts so that structures are longword aligned. */
+ symhdr->cbLine = (symhdr->cbLine + 3) &~ 3;
+ symhdr->issMax = (symhdr->issMax + 3) &~ 3;
+ symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3;
+
+ /* Now the counts in symhdr are the correct size for the debugging
+ information. We allocate the right amount of space, and reset
+ the counts so that the second pass can use them as indices. It
+ would be possible to output the debugging information directly to
+ the file in pass 2, rather than to build it in memory and then
+ write it out. Outputting to the file would require a lot of
+ seeks and small writes, though, and I think this approach is
+ faster. */
+ size = (symhdr->cbLine * sizeof (unsigned char)
+ + symhdr->idnMax * sizeof (struct dnr_ext)
+ + symhdr->ipdMax * sizeof (struct pdr_ext)
+ + symhdr->isymMax * sizeof (struct sym_ext)
+ + symhdr->ioptMax * sizeof (struct opt_ext)
+ + symhdr->iauxMax * sizeof (union aux_ext)
+ + symhdr->issMax * sizeof (char)
+ + symhdr->issExtMax * sizeof (char)
+ + symhdr->ifdMax * sizeof (struct fdr_ext)
+ + symhdr->crfd * sizeof (struct rfd_ext)
+ + symhdr->iextMax * sizeof (struct ext_ext));
+ raw = (char *) bfd_alloc (abfd, size);
+ if (raw == (char *) NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+ ecoff_data (abfd)->raw_size = size;
+ ecoff_data (abfd)->raw_syments = (PTR) raw;
+
+ /* Initialize the raw pointers. */
+#define SET(field, count, type) \
+ ecoff_data (abfd)->field = (type *) raw; \
+ raw += symhdr->count * sizeof (type)
+
+ SET (line, cbLine, unsigned char);
+ SET (external_dnr, idnMax, struct dnr_ext);
+ SET (external_pdr, ipdMax, struct pdr_ext);
+ SET (external_sym, isymMax, struct sym_ext);
+ SET (external_opt, ioptMax, struct opt_ext);
+ SET (external_aux, iauxMax, union aux_ext);
+ SET (ss, issMax, char);
+ SET (ssext, issExtMax, char);
+ SET (external_fdr, ifdMax, struct fdr_ext);
+ SET (external_rfd, crfd, struct rfd_ext);
+ SET (external_ext, iextMax, struct ext_ext);
+#undef SET
+
+ /* Reset the counts so the second pass can use them to know how far
+ it has gotten. */
+ symhdr->ilineMax = 0;
+ symhdr->cbLine = 0;
+ symhdr->idnMax = 0;
+ symhdr->ipdMax = 0;
+ symhdr->isymMax = 0;
+ symhdr->ioptMax = 0;
+ symhdr->iauxMax = 0;
+ symhdr->issMax = 0;
+ symhdr->issExtMax = 0;
+ symhdr->ifdMax = 0;
+ symhdr->crfd = 0;
+ symhdr->iextMax = 0;
+
+ /* Do the second pass: accumulate the debugging information. */
+ ecoff_clear_output_flags (abfd);
+ for (ipass = 0; ipass < 2; ipass++)
+ {
+ for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ {
+ if (((o->flags & SEC_CODE) == 0) != ipass)
+ continue;
+ for (p = o->seclets_head;
+ p != (bfd_seclet_type *) NULL;
+ p = p->next)
+ {
+ if (p->type == bfd_indirect_seclet)
+ {
+ if (ecoff_get_debug (abfd, p, o) == false)
+ return false;
+ }
+ }
+ }
+ }
+
+ /* Put in the external symbols. */
+ sym_ptr_ptr = bfd_get_outsymbols (abfd);
+ if (sym_ptr_ptr != NULL)
+ {
+ char *ssext;
+ struct ext_ext *external_ext;
+
+ ssext = ecoff_data (abfd)->ssext;
+ external_ext = ecoff_data (abfd)->external_ext;
+ for (; *sym_ptr_ptr != NULL; sym_ptr_ptr++)
+ {
+ asymbol *sym_ptr;
+ EXTR esym;
+
+ sym_ptr = *sym_ptr_ptr;
+
+ if ((sym_ptr->flags & BSF_DEBUGGING) != 0
+ || (sym_ptr->flags & BSF_LOCAL) != 0)
+ continue;
+
+ /* The enative pointer can be NULL for a symbol created by
+ the linker via ecoff_make_empty_symbol. */
+ if (bfd_asymbol_flavour (sym_ptr) != bfd_target_ecoff_flavour
+ || (((ecoff_symbol_type *) sym_ptr)->native.enative
+ == (struct ext_ext *) NULL))
+ {
+ esym.jmptbl = 0;
+ esym.cobol_main = 0;
+ esym.weakext = 0;
+ esym.reserved = 0;
+ esym.ifd = ifdNil;
+ /* FIXME: we can do better than this for st and sc. */
+ esym.asym.st = stGlobal;
+ esym.asym.sc = scAbs;
+ esym.asym.reserved = 0;
+ esym.asym.index = indexNil;
+ }
+ else
+ {
+ ecoff_symbol_type *ecoff_sym_ptr;
+
+ ecoff_sym_ptr = (ecoff_symbol_type *) sym_ptr;
+ if (ecoff_sym_ptr->local)
+ abort ();
+ ecoff_swap_ext_in (abfd, ecoff_sym_ptr->native.enative, &esym);
+
+ /* Adjust the FDR index for the symbol by that used for
+ the input BFD. */
+ esym.ifd += ecoff_data (bfd_asymbol_bfd (sym_ptr))->ifdbase;
+ }
+
+ esym.asym.iss = symhdr->issExtMax;
+
+ if (bfd_is_com_section (sym_ptr->section)
+ || sym_ptr->section == &bfd_und_section)
+ esym.asym.value = sym_ptr->value;
+ else
+ esym.asym.value = (sym_ptr->value
+ + sym_ptr->section->output_offset
+ + sym_ptr->section->output_section->vma);
+
+ ecoff_swap_ext_out (abfd, &esym, external_ext + symhdr->iextMax);
+
+ ecoff_set_sym_index (sym_ptr, symhdr->iextMax);
+
+ ++symhdr->iextMax;
+
+ strcpy (ssext + symhdr->issExtMax, sym_ptr->name);
+ symhdr->issExtMax += strlen (sym_ptr->name) + 1;
+ }
+ }
+
+ /* Adjust the counts so that structures are longword aligned. */
+ symhdr->cbLine = (symhdr->cbLine + 3) &~ 3;
+ symhdr->issMax = (symhdr->issMax + 3) &~ 3;
+ symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3;
+
+ return true;
+}
+\f
+/* Set the architecture. The only architecture we support here is
+ mips. We set the architecture anyhow, since many callers ignore
+ the return value. */
+
+static boolean
+DEFUN (ecoff_set_arch_mach, (abfd, arch, machine),
+ bfd *abfd AND
+ enum bfd_architecture arch AND
+ unsigned long machine)
+{
+ bfd_default_set_arch_mach (abfd, arch, machine);
+ return arch == bfd_arch_mips;
+}
+
+/* Calculate the file position for each section, and set
+ reloc_filepos. */
+
+static void
+DEFUN (ecoff_compute_section_file_positions, (abfd),
+ bfd *abfd)
+{
+ asection *current;
+ file_ptr sofar;
+ file_ptr old_sofar;
+ boolean first_data;
+
+ sofar = FILHSZ;
+
+ if (bfd_get_start_address (abfd))
+ abfd->flags |= EXEC_P;
+
+ /* Unlike normal COFF, ECOFF always use the ``optional'' header. */
+ sofar += AOUTSZ;
+
+ sofar += abfd->section_count * SCNHSZ;
+
+ first_data = true;
+ for (current = abfd->sections;
+ current != (asection *) NULL;
+ current = current->next)
+ {
+ /* Only deal with sections which have contents */
+ if (! (current->flags & SEC_HAS_CONTENTS))
+ continue;
+
+ /* On Ultrix, the data sections in an executable file must be
+ aligned to a page boundary within the file. This does not
+ affect the section size, though. FIXME: Does this work for
+ other platforms? */
+ if ((abfd->flags & EXEC_P) != 0
+ && first_data != false
+ && (current->flags & SEC_CODE) == 0)
+ {
+ sofar = (sofar + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1);
+ first_data = false;
+ }
+
+ /* Align the sections in the file to the same boundary on
+ which they are aligned in virtual memory. */
+ old_sofar = sofar;
+ sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
+
+ current->filepos = sofar;
+
+ sofar += current->_raw_size;
+
+ /* make sure that this section is of the right size too */
+ old_sofar = sofar;
+ sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
+ current->_raw_size += sofar - old_sofar;
+ }
+
+ ecoff_data (abfd)->reloc_filepos = sofar;
+}
+
+/* Set the contents of a section. */
+
+static boolean
+DEFUN (ecoff_set_section_contents, (abfd, section, location, offset, count),
+ bfd *abfd AND
+ asection *section AND
+ PTR location AND
+ file_ptr offset AND
+ bfd_size_type count)
+{
+ if (abfd->output_has_begun == false)
+ ecoff_compute_section_file_positions (abfd);
+
+ bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET);
+
+ if (count != 0)
+ return (bfd_write (location, 1, count, abfd) == count) ? true : false;
+
+ return true;
+}
+
+/* Write out an ECOFF file. */
+
+static boolean
+DEFUN (ecoff_write_object_contents, (abfd),
+ bfd *abfd)
+{
+ asection *current;
+ unsigned int count;
+ file_ptr scn_base;
+ file_ptr reloc_base;
+ file_ptr sym_base;
+ unsigned long reloc_size;
+ unsigned long text_size;
+ unsigned long text_start;
+ unsigned long data_size;
+ unsigned long data_start;
+ unsigned long bss_size;
+ struct internal_filehdr internal_f;
+ struct internal_aouthdr internal_a;
+ int i;
+
+ bfd_error = system_call_error;
+
+ if(abfd->output_has_begun == false)
+ ecoff_compute_section_file_positions(abfd);
+
+ if (abfd->sections != (asection *) NULL)
+ scn_base = abfd->sections->filepos;
+ else
+ scn_base = 0;
+ reloc_base = ecoff_data (abfd)->reloc_filepos;
+
+ count = 1;
+ reloc_size = 0;
+ for (current = abfd->sections;
+ current != (asection *)NULL;
+ current = current->next)
+ {
+ current->target_index = count;
+ ++count;
+ if (current->reloc_count != 0)
+ {
+ bfd_size_type relsize;
+
+ current->rel_filepos = reloc_base;
+ relsize = current->reloc_count * RELSZ;
+ reloc_size += relsize;
+ reloc_base += relsize;
+ }
+ else
+ current->rel_filepos = 0;
+ }
+
+ sym_base = reloc_base + reloc_size;
+
+ /* At least on Ultrix, the symbol table of an executable file must
+ be aligned to a page boundary. FIXME: Is this true on other
+ platforms? */
+ if ((abfd->flags & EXEC_P) != 0)
+ sym_base = (sym_base + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1);
+
+ ecoff_data (abfd)->sym_filepos = sym_base;
+
+ text_size = FILHSZ + AOUTSZ + abfd->section_count * SCNHSZ;
+ text_start = 0;
+ data_size = 0;
+ data_start = 0;
+ bss_size = 0;
+
+ /* Write section headers to the file. */
+
+ internal_f.f_nscns = 0;
+ if (bfd_seek (abfd, (file_ptr) (FILHSZ + AOUTSZ), SEEK_SET) != 0)
+ return false;
+ for (current = abfd->sections;
+ current != (asection *) NULL;
+ current = current->next)
+ {
+ struct internal_scnhdr section;
+ bfd_vma vma;
+
+ ++internal_f.f_nscns;
+
+ strncpy (section.s_name, current->name, sizeof section.s_name);
+
+ /* FIXME: is this correct for shared libraries? I think it is
+ but I have no platform to check. Ian Lance Taylor. */
+ vma = bfd_get_section_vma (abfd, current);
+ if (strcmp (current->name, _LIB) == 0)
+ section.s_vaddr = 0;
+ else
+ section.s_vaddr = vma;
+
+ section.s_paddr = vma;
+ section.s_size = bfd_get_section_size_before_reloc (current);
+
+ /* If this section has no size or is unloadable then the scnptr
+ will be 0 too. */
+ if (current->_raw_size == 0
+ || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
+ section.s_scnptr = 0;
+ else
+ section.s_scnptr = current->filepos;
+ section.s_relptr = current->rel_filepos;
+
+ /* FIXME: the lnnoptr of the .sbss or .sdata section of an
+ object file produced by the assembler is supposed to point to
+ information about how much room is required by objects of
+ various different sizes. I think this only matters if we
+ want the linker to compute the best size to use, or
+ something. I don't know what happens if the information is
+ not present. */
+ section.s_lnnoptr = 0;
+
+ section.s_nreloc = current->reloc_count;
+ section.s_nlnno = 0;
+ section.s_flags = sec_to_styp_flags (current->name, current->flags);
+
+ {
+ SCNHDR buff;
+
+ ecoff_swap_scnhdr_out (abfd, (PTR) §ion, (PTR) &buff);
+ if (bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ)
+ return false;
+ }
+
+ if ((section.s_flags & STYP_TEXT) != 0)
+ {
+ text_size += bfd_get_section_size_before_reloc (current);
+ if (text_start == 0 || text_start > vma)
+ text_start = vma;
+ }
+ else if ((section.s_flags & STYP_RDATA) != 0
+ || (section.s_flags & STYP_DATA) != 0
+ || (section.s_flags & STYP_LIT8) != 0
+ || (section.s_flags & STYP_LIT4) != 0
+ || (section.s_flags & STYP_SDATA) != 0)
+ {
+ data_size += bfd_get_section_size_before_reloc (current);
+ if (data_start == 0 || data_start > vma)
+ data_start = vma;
+ }
+ else if ((section.s_flags & STYP_BSS) != 0
+ || (section.s_flags & STYP_SBSS) != 0)
+ bss_size += bfd_get_section_size_before_reloc (current);
+ }
+
+ /* Set up the file header. */
+
+ internal_f.f_magic = MIPS_MAGIC_2;
+
+ /*
+ We will NOT put a fucking timestamp in the header here. Every time you
+ put it back, I will come in and take it out again. I'm sorry. This
+ field does not belong here. We fill it with a 0 so it compares the
+ same but is not a reasonable time. -- gnu@cygnus.com
+ */
+ internal_f.f_timdat = 0;
+
+ if (bfd_get_symcount (abfd) != 0)
+ {
+ /* The ECOFF f_nsyms field is not actually the number of
+ symbols, it's the size of symbolic information header. */
+ internal_f.f_nsyms = sizeof (struct hdr_ext);
+ internal_f.f_symptr = sym_base;
+ }
+ else
+ {
+ internal_f.f_nsyms = 0;
+ internal_f.f_symptr = 0;
+ }
+
+ internal_f.f_opthdr = AOUTSZ;
+
+ internal_f.f_flags = F_LNNO;
+ if (reloc_size == 0)
+ internal_f.f_flags |= F_RELFLG;
+ if (bfd_get_symcount (abfd) == 0)
+ internal_f.f_flags |= F_LSYMS;
+ if (abfd->flags & EXEC_P)
+ internal_f.f_flags |= F_EXEC;
+
+ if (! abfd->xvec->byteorder_big_p)
+ internal_f.f_flags |= F_AR32WR;
+ else
+ internal_f.f_flags |= F_AR32W;
+
+ /* Set up the ``optional'' header. */
+ internal_a.magic = ZMAGIC;
+
+ /* FIXME: What should this be? */
+ internal_a.vstamp = 0;
+
+ /* At least on Ultrix, these have to be rounded to page boundaries.
+ FIXME: Is this true on other platforms? */
+ internal_a.tsize = (text_size + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1);
+ internal_a.text_start = text_start &~ (PAGE_SIZE - 1);
+ internal_a.dsize = (data_size + PAGE_SIZE - 1) &~ (PAGE_SIZE - 1);
+ internal_a.data_start = data_start &~ (PAGE_SIZE - 1);
+
+ /* On Ultrix, the initial portions of the .sbss and .bss segments
+ are at the end of the data section. The bsize field in the
+ optional header records how many bss bytes are required beyond
+ those in the data section. The value is not rounded to a page
+ boundary. */
+ if (bss_size < internal_a.dsize - data_size)
+ bss_size = 0;
+ else
+ bss_size -= internal_a.dsize - data_size;
+ internal_a.bsize = bss_size;
+ internal_a.bss_start = internal_a.data_start + internal_a.dsize;
+
+ internal_a.entry = bfd_get_start_address (abfd);
+
+ internal_a.gp_value = ecoff_data (abfd)->gp;
+
+ internal_a.gprmask = ecoff_data (abfd)->gprmask;
+ for (i = 0; i < 3; i++)
+ internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i];
+
+ /* Write out the file header and the optional header. */
+
+ if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
+ return false;
+
+ {
+ FILHDR buff;
+ ecoff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) &buff);
+ if (bfd_write ((PTR) &buff, 1, FILHSZ, abfd) != FILHSZ)
+ return false;
+ }
+
+ {
+ AOUTHDR buff;
+
+ ecoff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff);
+ if (bfd_write ((PTR) &buff, 1, AOUTSZ, abfd) != AOUTSZ)
+ return false;
+ }
+
+ /* Write out the relocs. */
+ for (current = abfd->sections;
+ current != (asection *) NULL;
+ current = current->next)
+ {
+ RELOC *buff;
+ arelent **reloc_ptr_ptr;
+ arelent **reloc_end;
+ RELOC *out_ptr;
+
+ if (current->reloc_count == 0)
+ continue;
+
+ buff = (RELOC *) bfd_alloc (abfd, current->reloc_count * RELSZ);
+ if (buff == (RELOC *) NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+
+ reloc_ptr_ptr = current->orelocation;
+ reloc_end = reloc_ptr_ptr + current->reloc_count;
+ out_ptr = buff;
+ for (; reloc_ptr_ptr < reloc_end; reloc_ptr_ptr++, out_ptr++)
+ {
+ arelent *reloc;
+ asymbol *sym;
+ struct internal_reloc in;
+
+ memset (&in, 0, sizeof in);
+
+ reloc = *reloc_ptr_ptr;
+ sym = *reloc->sym_ptr_ptr;
+
+ in.r_vaddr = reloc->address + bfd_get_section_vma (abfd, current);
+ in.r_type = reloc->howto->type;
+ if ((sym->flags & BSF_SECTION_SYM) == 0)
+ {
+ in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr);
+ in.r_extern = 1;
+ }
+ else
+ {
+ CONST char *name;
+
+ name = bfd_get_section_name (abfd, bfd_get_section (sym));
+ if (strcmp (name, ".text") == 0)
+ in.r_symndx = RELOC_SECTION_TEXT;
+ else if (strcmp (name, ".rdata") == 0)
+ in.r_symndx = RELOC_SECTION_RDATA;
+ else if (strcmp (name, ".data") == 0)
+ in.r_symndx = RELOC_SECTION_DATA;
+ else if (strcmp (name, ".sdata") == 0)
+ in.r_symndx = RELOC_SECTION_SDATA;
+ else if (strcmp (name, ".sbss") == 0)
+ in.r_symndx = RELOC_SECTION_SBSS;
+ else if (strcmp (name, ".bss") == 0)
+ in.r_symndx = RELOC_SECTION_BSS;
+ else if (strcmp (name, ".init") == 0)
+ in.r_symndx = RELOC_SECTION_INIT;
+ else if (strcmp (name, ".lit8") == 0)
+ in.r_symndx = RELOC_SECTION_LIT8;
+ else if (strcmp (name, ".lit4") == 0)
+ in.r_symndx = RELOC_SECTION_LIT4;
+ else
+ abort ();
+ in.r_extern = 0;
+ }
+
+ ecoff_swap_reloc_out (abfd, (PTR) &in, (PTR) out_ptr);
+ }
+
+ if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0)
+ return false;
+ if (bfd_write ((PTR) buff, RELSZ, current->reloc_count, abfd)
+ != RELSZ * current->reloc_count)
+ return false;
+ bfd_release (abfd, (PTR) buff);
+ }
+
+ /* Write out the symbolic debugging information. */
+ if (bfd_get_symcount (abfd) > 0)
+ {
+ HDRR *symhdr;
+ unsigned long sym_offset;
+ struct hdr_ext buff;
+
+ /* Set up the offsets in the symbolic header. */
+ symhdr = &ecoff_data (abfd)->symbolic_header;
+ sym_offset = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext);
+
+#define SET(offset, size, ptr) \
+ if (symhdr->size == 0) \
+ symhdr->offset = 0; \
+ else \
+ symhdr->offset = (((char *) ecoff_data (abfd)->ptr \
+ - (char *) ecoff_data (abfd)->raw_syments) \
+ + sym_offset);
+
+ SET (cbLineOffset, cbLine, line);
+ SET (cbDnOffset, idnMax, external_dnr);
+ SET (cbPdOffset, ipdMax, external_pdr);
+ SET (cbSymOffset, isymMax, external_sym);
+ SET (cbOptOffset, ioptMax, external_opt);
+ SET (cbAuxOffset, iauxMax, external_aux);
+ SET (cbSsOffset, issMax, ss);
+ SET (cbSsExtOffset, issExtMax, ssext);
+ SET (cbFdOffset, ifdMax, external_fdr);
+ SET (cbRfdOffset, crfd, external_rfd);
+ SET (cbExtOffset, iextMax, external_ext);
+#undef SET
+
+ if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos,
+ SEEK_SET) != 0)
+ return false;
+ ecoff_swap_hdr_out (abfd, &ecoff_data (abfd)->symbolic_header, &buff);
+ if (bfd_write ((PTR) &buff, 1, sizeof buff, abfd) != sizeof buff)
+ return false;
+ if (bfd_write ((PTR) ecoff_data (abfd)->raw_syments, 1,
+ ecoff_data (abfd)->raw_size, abfd)
+ != ecoff_data (abfd)->raw_size)
+ return false;
+ }
+
+ return true;
+}
+\f
+/* Archive handling. ECOFF uses what appears to be a unique type of
+ archive header (which I call an armap). The byte ordering of the
+ armap and the contents are encoded in the name of the armap itself.
+ At least for now, we only support archives with the same byte
+ ordering in the armap and the contents.
+
+ The first four bytes in the armap are the number of symbol
+ definitions. This is always a power of two.
+
+ This is followed by the symbol definitions. Each symbol definition
+ occupies 8 bytes. The first four bytes are the offset from the
+ start of the armap strings to the null-terminated string naming
+ this symbol. The second four bytes are the file offset to the
+ archive member which defines this symbol. If the second four bytes
+ are 0, then this is not actually a symbol definition, and it should
+ be ignored.
+
+ The symbols are hashed into the armap with a closed hashing scheme.
+ See the functions below for the details of the algorithm.
+
+ We could use the hash table when looking up symbols in a library.
+ This would require a new BFD target entry point to replace the
+ bfd_get_next_mapent function used by the linker.
+
+ After the symbol definitions comes four bytes holding the size of
+ the string table, followed by the string table itself. */
+
+/* The name of an archive headers looks like this:
+ __________E[BL]E[BL]_ (with a trailing space).
+ The trailing space is changed to an X if the archive is changed to
+ indicate that the armap is out of date. */
+
+#define ARMAP_BIG_ENDIAN 'B'
+#define ARMAP_LITTLE_ENDIAN 'L'
+#define ARMAP_MARKER 'E'
+#define ARMAP_START "__________"
+#define ARMAP_HEADER_MARKER_INDEX 10
+#define ARMAP_HEADER_ENDIAN_INDEX 11
+#define ARMAP_OBJECT_MARKER_INDEX 12
+#define ARMAP_OBJECT_ENDIAN_INDEX 13
+#define ARMAP_END_INDEX 14
+#define ARMAP_END "_ "
+
+/* This is a magic number used in the hashing algorithm. */
+#define ARMAP_HASH_MAGIC 0x9dd68ab5
+
+/* This returns the hash value to use for a string. It also sets
+ *REHASH to the rehash adjustment if the first slot is taken. SIZE
+ is the number of entries in the hash table, and HLOG is the log
+ base 2 of SIZE. */
+
+static unsigned int
+ecoff_armap_hash (s, rehash, size, hlog)
+ CONST char *s;
+ unsigned int *rehash;
+ unsigned int size;
+ unsigned int hlog;
+{
+ unsigned int hash;
+
+ hash = *s++;
+ while (*s != '\0')
+ hash = ((hash >> 27) | (hash << 5)) + *s++;
+ hash *= ARMAP_HASH_MAGIC;
+ *rehash = (hash & (size - 1)) | 1;
+ return hash >> (32 - hlog);
+}
+
+/* Read in the armap. */
+
+static boolean
+DEFUN (ecoff_slurp_armap, (abfd),
+ bfd *abfd)
+{
+ char nextname[17];
+ unsigned int i;
+ struct areltdata *mapdata;
+ bfd_size_type parsed_size;
+ char *raw_armap;
+ struct artdata *ardata;
+ unsigned int count;
+ char *raw_ptr;
+ struct symdef *symdef_ptr;
+ char *stringbase;
+
+ /* Get the name of the first element. */
+ i = bfd_read ((PTR) nextname, 1, 16, abfd);
+ if (i == 0)
+ return true;
+ if (i != 16)
+ return false;
+
+ bfd_seek (abfd, (file_ptr) -16, SEEK_CUR);
+
+ /* See if the first element is an armap. */
+ if (strncmp (nextname, ARMAP_START, sizeof ARMAP_START - 1) != 0
+ || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER
+ || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN
+ && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN)
+ || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER
+ || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN
+ && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN)
+ || strncmp (nextname + ARMAP_END_INDEX,
+ ARMAP_END, sizeof ARMAP_END - 1) != 0)
+ {
+ bfd_has_map (abfd) = false;
+ return true;
+ }
+
+ /* Make sure we have the right byte ordering. */
+ if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN)
+ ^ (abfd->xvec->header_byteorder_big_p != false))
+ || ((nextname[ARMAP_OBJECT_MARKER_INDEX] == ARMAP_BIG_ENDIAN)
+ ^ (abfd->xvec->byteorder_big_p != false)))
+ {
+ bfd_error = wrong_format;
+ return false;
+ }
+
+ /* Read in the armap. */
+ ardata = bfd_ardata (abfd);
+ mapdata = snarf_ar_hdr (abfd);
+ if (mapdata == (struct areltdata *) NULL)
+ return false;
+ parsed_size = mapdata->parsed_size;
+ bfd_release (abfd, (PTR) mapdata);
+
+ raw_armap = (char *) bfd_alloc (abfd, parsed_size);
+ if (raw_armap == (char *) NULL)
+ {
+ bfd_error = no_memory;
+ return false;
+ }
+
+ if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size)
+ {
+ bfd_error = malformed_archive;
+ bfd_release (abfd, (PTR) raw_armap);
+ return false;
+ }
+
+ count = bfd_h_get_32 (abfd, (PTR) raw_armap);
+
+ ardata->symdef_count = 0;
+ ardata->cache = (struct ar_cache *) NULL;
+
+ /* Hack: overlay the symdefs on top of the raw archive data. This
+ is the way do_slurp_bsd_armap works. */
+ raw_ptr = raw_armap + LONG_SIZE;
+ symdef_ptr = (struct symdef *) raw_ptr;
+ ardata->symdefs = (carsym *) symdef_ptr;
+ stringbase = raw_ptr + count * (2 * LONG_SIZE) + LONG_SIZE;
+
+#ifdef CHECK_ARMAP_HASH
+ {
+ unsigned int hlog;
+
+ /* Double check that I have the hashing algorithm right by making
+ sure that every symbol can be looked up successfully. */
+ hlog = 0;
+ for (i = 1; i < count; i <<= 1)
+ hlog++;
+ BFD_ASSERT (i == count);
+
+ for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE)
+ {
+ unsigned int name_offset, file_offset;
+ unsigned int hash, rehash, srch;
+
+ name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr);
+ file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE));
+ if (file_offset == 0)
+ continue;
+ hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count,
+ hlog);
+ if (hash == i)
+ continue;
+
+ /* See if we can rehash to this location. */
+ for (srch = (hash + rehash) & (count - 1);
+ srch != hash && srch != i;
+ srch = (srch + rehash) & (count - 1))
+ BFD_ASSERT (bfd_h_get_32 (abfd,
+ (PTR) (raw_armap
+ + LONG_SIZE
+ + (srch * 2 * LONG_SIZE)
+ + LONG_SIZE))
+ != 0);
+ BFD_ASSERT (srch == i);
+ }
+ }
+
+ raw_ptr = raw_armap + LONG_SIZE;
+#endif /* CHECK_ARMAP_HASH */
+
+ for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE)
+ {
+ unsigned int name_offset, file_offset;
+
+ name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr);
+ file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE));
+ if (file_offset == 0)
+ continue;
+ symdef_ptr->s.name = stringbase + name_offset;
+ symdef_ptr->file_offset = file_offset;
+ ++symdef_ptr;
+ ++ardata->symdef_count;
+ }
+
+ ardata->first_file_filepos = bfd_tell (abfd);
+ /* Pad to an even boundary. */
+ ardata->first_file_filepos += ardata->first_file_filepos % 2;
+
+ bfd_has_map (abfd) = true;
+
+ return true;
+}
+
+/* Write out an armap. */
+
+static boolean
+DEFUN (ecoff_write_armap, (abfd, elength, map, orl_count, stridx),
+ bfd *abfd AND
+ unsigned int elength AND
+ struct orl *map AND
+ unsigned int orl_count AND
+ int stridx)
+{
+ unsigned int hashsize, hashlog;
+ unsigned int symdefsize;
+ int padit;
+ unsigned int stringsize;
+ unsigned int mapsize;
+ file_ptr firstreal;
+ struct ar_hdr hdr;
+ struct stat statbuf;
+ unsigned int i;
+ bfd_byte temp[LONG_SIZE];
+ bfd_byte *hashtable;
+ bfd *current;
+ bfd *last_elt;
+
+ /* Ultrix appears to use as a hash table size the least power of two
+ greater than twice the number of entries. */
+ for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++)
+ ;
+ hashsize = 1 << hashlog;
+
+ symdefsize = hashsize * 2 * LONG_SIZE;
+ padit = stridx % 2;
+ stringsize = stridx + padit;
+
+ /* Include 8 bytes to store symdefsize and stringsize in output. */
+ mapsize = LONG_SIZE + symdefsize + stringsize + LONG_SIZE;
+
+ firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength;
+
+ memset ((PTR) &hdr, 0, sizeof hdr);
+
+ /* Work out the ECOFF armap name. */
+ strcpy (hdr.ar_name, ARMAP_START);
+ hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER;
+ hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] =
+ (abfd->xvec->header_byteorder_big_p
+ ? ARMAP_BIG_ENDIAN
+ : ARMAP_LITTLE_ENDIAN);
+ hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER;
+ hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] =
+ abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN;
+ memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1);
+
+ /* Write the timestamp of the archive header to be just a little bit
+ later than the timestamp of the file, otherwise the linker will
+ complain that the index is out of date. Actually, the Ultrix
+ linker just checks the archive name; the GNU linker may check the
+ date. */
+ if (stat (abfd->filename, &statbuf) < 0)
+ statbuf.st_mtime = time ((PTR) NULL);
+ sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60));
+
+ /* The DECstation uses zeroes for the uid, gid and mode of the
+ armap. */
+ hdr.ar_uid[0] = '0';
+ hdr.ar_gid[0] = '0';
+ hdr.ar_mode[0] = '0';
+
+ sprintf (hdr.ar_size, "%-10d", (int) mapsize);
+
+ hdr.ar_fmag[0] = '`';
+ hdr.ar_fmag[1] = '\n';
+
+ /* Turn all null bytes in the header into spaces. */
+ for (i = 0; i < sizeof (struct ar_hdr); i++)
+ if (((char *)(&hdr))[i] == '\0')
+ (((char *)(&hdr))[i]) = ' ';
+
+ if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd)
+ != sizeof (struct ar_hdr))
+ return false;
+
+ bfd_h_put_32 (abfd, hashsize, temp);
+ if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE)
+ return false;
+
+ hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize);
+
+ current = abfd->archive_head;
+ last_elt = current;
+ for (i = 0; i < orl_count; i++)
+ {
+ unsigned int hash, rehash;
+
+ /* Advance firstreal to the file position of this archive
+ element. */
+ if (((bfd *) map[i].pos) != last_elt)
+ {
+ do
+ {
+ firstreal += arelt_size (current) + sizeof (struct ar_hdr);
+ firstreal += firstreal % 2;
+ current = current->next;
+ }
+ while (current != (bfd *) map[i].pos);
+ }
+
+ last_elt = current;
+
+ hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog);
+ if (bfd_h_get_32 (abfd, (PTR) (hashtable
+ + (hash * 2 * LONG_SIZE)
+ + LONG_SIZE))
+ != 0)
+ {
+ unsigned int srch;
+
+ /* The desired slot is already taken. */
+ for (srch = (hash + rehash) & (hashsize - 1);
+ srch != hash;
+ srch = (srch + rehash) & (hashsize - 1))
+ if (bfd_h_get_32 (abfd, (PTR) (hashtable
+ + (srch * 2 * LONG_SIZE)
+ + LONG_SIZE))
+ == 0)
+ break;
+
+ BFD_ASSERT (srch != hash);
+
+ hash = srch;
+ }
+
+ bfd_h_put_32 (abfd, map[i].namidx,
+ (PTR) (hashtable + hash * 2 * LONG_SIZE));
+ bfd_h_put_32 (abfd, firstreal,
+ (PTR) (hashtable + hash * 2 * LONG_SIZE + LONG_SIZE));
+ }
+
+ if (bfd_write (hashtable, 1, symdefsize, abfd) != symdefsize)
+ return false;
+
+ bfd_release (abfd, hashtable);
+
+ /* Now write the strings. */
+ bfd_h_put_32 (abfd, stringsize, temp);
+ if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE)
+ return false;
+ for (i = 0; i < orl_count; i++)
+ {
+ bfd_size_type len;
+
+ len = strlen (*map[i].name) + 1;
+ if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len)
+ return false;
+ }
+
+ /* The spec sez this should be a newline. But in order to be
+ bug-compatible for DECstation ar we use a null. */
+ if (padit)
+ {
+ if (bfd_write ("\0", 1, 1, abfd) != 1)
+ return false;
+ }
+
+ return true;
+}
+
+/* We just use the generic extended name support. This is a GNU
+ extension. */
+#define ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table
+
+/* See whether this BFD is an archive. If it is, read in the armap
+ and the extended name table. */
+
+static bfd_target *
+DEFUN (ecoff_archive_p, (abfd),
+ bfd *abfd)
+{
+ char armag[SARMAG + 1];
+
+ if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG
+ || strncmp (armag, ARMAG, SARMAG) != 0)
+ {
+ bfd_error = wrong_format;
+ return (bfd_target *) NULL;
+ }
+
+ /* We are setting bfd_ardata(abfd) here, but since bfd_ardata
+ involves a cast, we can't do it as the left operand of
+ assignment. */
+ abfd->tdata.aout_ar_data =
+ (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata));
+
+ if (bfd_ardata (abfd) == (struct artdata *) NULL)
+ {
+ bfd_error = no_memory;
+ return (bfd_target *) NULL;
+ }
+
+ bfd_ardata (abfd)->first_file_filepos = SARMAG;
+
+ if (ecoff_slurp_armap (abfd) == false
+ || ecoff_slurp_extended_name_table (abfd) == false)
+ {
+ bfd_release (abfd, bfd_ardata (abfd));
+ abfd->tdata.aout_ar_data = (struct artdata *) NULL;
+ return (bfd_target *) NULL;
+ }
+
+ return abfd->xvec;
+}
+\f
+static CONST bfd_coff_backend_data bfd_ecoff_std_swap_table = {
+ (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */
+ (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */
+ (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */
+ (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */
+ (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */
+ (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */
+ ecoff_swap_reloc_out, ecoff_swap_filehdr_out, ecoff_swap_aouthdr_out,
+ ecoff_swap_scnhdr_out,
+ FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
+ ecoff_swap_filehdr_in, ecoff_swap_aouthdr_in, ecoff_swap_scnhdr_in,
+ ecoff_bad_format_hook, ecoff_set_arch_mach_hook, ecoff_mkobject_hook,
+ styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook,
+ ecoff_slurp_symbol_table
+};
+
+/* get_lineno could be written for ECOFF, but it would currently only
+ be useful for linking ECOFF and COFF files together, which doesn't
+ seem too likely. */
+#define ecoff_get_lineno \
+ ((alent *(*) PARAMS ((bfd *, asymbol *))) bfd_nullvoidptr)
+
+#define ecoff_core_file_failing_command _bfd_dummy_core_file_failing_command
+#define ecoff_core_file_failing_signal _bfd_dummy_core_file_failing_signal
+#define ecoff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
+#define ecoff_truncate_arname bfd_dont_truncate_arname
+#define ecoff_openr_next_archived_file bfd_generic_openr_next_archived_file
+#define ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt
+#define ecoff_get_section_contents bfd_generic_get_section_contents
+#define ecoff_get_reloc_upper_bound coff_get_reloc_upper_bound
+#define ecoff_close_and_cleanup bfd_generic_close_and_cleanup
+#define ecoff_sizeof_headers coff_sizeof_headers
+#define ecoff_bfd_debug_info_start bfd_void
+#define ecoff_bfd_debug_info_end bfd_void
+#define ecoff_bfd_debug_info_accumulate \
+ ((void (*) PARAMS ((bfd *, struct sec *))) bfd_void)
+#define ecoff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
+#define ecoff_bfd_relax_section bfd_generic_relax_section
+
bfd_target ecoff_little_vec =
- {"ecoff-littlemips", /* name */
- bfd_target_coff_flavour,
- false, /* data byte order is little */
- false, /* header byte order is little */
-
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect flags */
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
- 3, /* minimum alignment power */
-_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
-_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
-
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, coff_mkobject, bfd_false, /* bfd_set_format */
- bfd_false},
- {bfd_false, coff_write_object_contents, bfd_false, bfd_false},
- JUMP_TABLE (coff)
+{
+ "ecoff-littlemips", /* name */
+ bfd_target_ecoff_flavour,
+ false, /* data byte order is little */
+ false, /* header byte order is little */
+
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG |
+ HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect
+ flags */
+ 0, /* leading underscore */
+ '/', /* ar_pad_char */
+ 15, /* ar_max_namelen */
+ 3, /* minimum alignment power */
+ _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
+ _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
+
+ {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
+ ecoff_archive_p, _bfd_dummy_target},
+ {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
+ bfd_false},
+ {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */
+ _bfd_write_archive_contents, bfd_false},
+ JUMP_TABLE (ecoff),
+ 0, 0,
+ (PTR) &bfd_ecoff_std_swap_table
};
bfd_target ecoff_big_vec =
- {"ecoff-bigmips", /* name */
- bfd_target_coff_flavour,
- true, /* data byte order is big */
- true, /* header byte order is big */
-
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect flags */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- 3, /* minimum alignment power */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, coff_mkobject, bfd_false, /* bfd_set_format */
- bfd_false},
- {bfd_false, coff_write_object_contents, /* bfd_write_contents */
- bfd_false, bfd_false},
- JUMP_TABLE(coff),
- COFF_SWAP_TABLE
+{
+ "ecoff-bigmips", /* name */
+ bfd_target_ecoff_flavour,
+ true, /* data byte order is big */
+ true, /* header byte order is big */
+
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG |
+ HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect flags */
+ 0, /* leading underscore */
+ ' ', /* ar_pad_char */
+ 16, /* ar_max_namelen */
+ 3, /* minimum alignment power */
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
+ {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
+ ecoff_archive_p, _bfd_dummy_target},
+ {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
+ bfd_false},
+ {bfd_false, ecoff_write_object_contents, /* bfd_write_contents */
+ _bfd_write_archive_contents, bfd_false},
+ JUMP_TABLE(ecoff),
+ 0, 0,
+ (PTR) &bfd_ecoff_std_swap_table
+ /* Note that there is another bfd_target just above this one. If
+ you are adding initializers here, you should be adding them there
+ as well. */
};
projects / deliverable / binutils-gdb.git / blobdiff