/* BFD back-end for MIPS Extended-Coff files.
- Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
Original version by Per Bothner.
- Full support by Ian Lance Taylor, ian@cygnus.com.
+ Full support added by Ian Lance Taylor, ian@cygnus.com.
This file is part of BFD, the Binary File Descriptor library.
#include "sysdep.h"
#include "libbfd.h"
#include "seclet.h"
-#include "coff/mips.h"
#include "coff/internal.h"
#include "coff/sym.h"
#include "coff/symconst.h"
-#include "coff/ecoff-ext.h"
+#include "coff/ecoff.h"
+#include "coff/mips.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 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 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)))
-
-/* 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. */
+#include "libecoff.h"
+\f
+/* Prototypes for static functions. */
+
+static boolean mips_ecoff_bad_format_hook PARAMS ((bfd *abfd, PTR filehdr));
+static PTR mips_ecoff_mkobject_hook PARAMS ((bfd *abfd, PTR filehdr,
+ PTR aouthdr));
+static void mips_ecoff_swap_reloc_in PARAMS ((bfd *, PTR,
+ struct internal_reloc *));
+static void mips_ecoff_swap_reloc_out PARAMS ((bfd *,
+ const struct internal_reloc *,
+ PTR));
+static bfd_reloc_status_type mips_generic_reloc PARAMS ((bfd *abfd,
+ arelent *reloc,
+ asymbol *symbol,
+ PTR data,
+ asection *section,
+ bfd *output_bfd));
+static bfd_reloc_status_type mips_refhi_reloc PARAMS ((bfd *abfd,
+ arelent *reloc,
+ asymbol *symbol,
+ PTR data,
+ asection *section,
+ bfd *output_bfd));
+static bfd_reloc_status_type mips_reflo_reloc PARAMS ((bfd *abfd,
+ arelent *reloc,
+ asymbol *symbol,
+ PTR data,
+ asection *section,
+ bfd *output_bfd));
+static bfd_reloc_status_type mips_gprel_reloc PARAMS ((bfd *abfd,
+ arelent *reloc,
+ asymbol *symbol,
+ PTR data,
+ asection *section,
+ bfd *output_bfd));
+\f
+/* ECOFF has COFF sections, but the debugging information is stored in
+ a completely different format. ECOFF targets use some of the
+ swapping routines from coffswap.h, and some of the generic COFF
+ routines in coffgen.c, but, unlike the real COFF targets, do 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
+#define coff_swap_filehdr_in mips_ecoff_swap_filehdr_in
+#define coff_swap_filehdr_out mips_ecoff_swap_filehdr_out
+#define coff_swap_aouthdr_in mips_ecoff_swap_aouthdr_in
+#define coff_swap_aouthdr_out mips_ecoff_swap_aouthdr_out
+#define coff_swap_scnhdr_in mips_ecoff_swap_scnhdr_in
+#define coff_swap_scnhdr_out mips_ecoff_swap_scnhdr_out
#include "coffswap.h"
-\f
-/* This stuff is somewhat copied from coffcode.h. */
-static asection bfd_debug_section = { "*DEBUG*" };
+/* Get the ECOFF swapping routines. */
+#define ECOFF_32
+#include "ecoffswap.h"
+\f
+/* How to process the various relocs types. */
+
+static reloc_howto_type mips_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 (MIPS_R_IGNORE, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* 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 (MIPS_R_REFHALF, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ mips_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 (MIPS_R_REFWORD, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ mips_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 (MIPS_R_JMPADDR, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ mips_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
+ mips_refhi_reloc. */
+ HOWTO (MIPS_R_REFHI, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ mips_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 (MIPS_R_REFLO, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ mips_reflo_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 mips_gprel_reloc. */
+ HOWTO (MIPS_R_GPREL, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ mips_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 mips_gprel_reloc. */
+ HOWTO (MIPS_R_LITERAL, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ mips_gprel_reloc, /* special_function */
+ "LITERAL", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false) /* pcrel_offset */
+};
+#define MIPS_HOWTO_COUNT \
+ (sizeof mips_howto_table / sizeof mips_howto_table[0])
+\f
/* See whether the magic number matches. */
static boolean
-DEFUN(ecoff_bad_format_hook, (abfd, filehdr),
- bfd *abfd AND
- PTR filehdr)
+mips_ecoff_bad_format_hook (abfd, filehdr)
+ bfd *abfd;
+ PTR filehdr;
{
struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
- if (ECOFFBADMAG (*internal_f))
+ if (MIPS_ECOFF_BADMAG (*internal_f))
return false;
return true;
}
-/* This is a hook needed by SCO COFF, but we have nothing to do. */
+/* Create the MIPS ECOFF backend specific information. */
-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
-DEFUN(ecoff_mkobject_hook,(abfd, filehdr),
- bfd *abfd AND
- PTR filehdr)
+static PTR
+mips_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->gp_size = 8;
ecoff->sym_filepos = internal_f->f_symptr;
- 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 (internal_a != (struct internal_aouthdr *) NULL)
{
- 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;
+ int i;
+
+ ecoff->text_start = internal_a->text_start;
+ ecoff->text_end = internal_a->text_start + internal_a->tsize;
+ ecoff->gp = internal_a->gp_value;
+ ecoff->gprmask = internal_a->gprmask;
+ for (i = 0; i < 4; i++)
+ ecoff->cprmask[i] = internal_a->cprmask[i];
+ if (internal_a->magic == ECOFF_AOUT_ZMAGIC)
+ abfd->flags |= D_PAGED;
}
- return sec_flags;
+ return (PTR) ecoff;
}
\f
/* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in
/* Swap a reloc in. */
static void
-DEFUN (ecoff_swap_reloc_in, (abfd, ext, intern),
- bfd *abfd AND
- RELOC *ext AND
- struct internal_reloc *intern)
+mips_ecoff_swap_reloc_in (abfd, ext_ptr, intern)
+ bfd *abfd;
+ PTR ext_ptr;
+ struct internal_reloc *intern;
{
+ const RELOC *ext = (RELOC *) ext_ptr;
+
intern->r_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_vaddr);
if (abfd->xvec->header_byteorder_big_p != false)
{
- intern->r_symndx = ((ext->r_bits[0]
+ intern->r_symndx = (((int) ext->r_bits[0]
<< RELOC_BITS0_SYMNDX_SH_LEFT_BIG)
- | (ext->r_bits[1]
+ | ((int) ext->r_bits[1]
<< RELOC_BITS1_SYMNDX_SH_LEFT_BIG)
- | (ext->r_bits[2]
+ | ((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);
}
else
{
- intern->r_symndx = ((ext->r_bits[0]
+ intern->r_symndx = (((int) ext->r_bits[0]
<< RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE)
- | (ext->r_bits[1]
+ | ((int) ext->r_bits[1]
<< RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE)
- | (ext->r_bits[2]
+ | ((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);
/* Swap a reloc out. */
-static unsigned int
-DEFUN (ecoff_swap_reloc_out, (abfd, src, dst),
- bfd *abfd AND
- PTR src AND
- PTR dst)
+static void
+mips_ecoff_swap_reloc_out (abfd, intern, dst)
+ bfd *abfd;
+ const struct internal_reloc *intern;
+ 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);
& RELOC_BITS3_TYPE_LITTLE)
| (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0));
}
-
- return RELSZ;
}
-\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;
- }
+/* Finish canonicalizing a reloc. Part of this is generic to all
+ ECOFF targets, and that part is in ecoff.c. The rest is done in
+ this backend routine. It must fill in the howto field. */
- /* 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);
+static void
+mips_finish_reloc (abfd, intern, rptr)
+ bfd *abfd;
+ struct internal_reloc *intern;
+ arelent *rptr;
+{
+ if (intern->r_type > MIPS_R_LITERAL)
+ abort ();
- if (internal_symhdr->magic != magicSym)
- {
- bfd_error = bad_value;
- return false;
- }
+ if (! intern->r_extern
+ && (intern->r_type == MIPS_R_GPREL
+ || intern->r_type == MIPS_R_LITERAL))
+ rptr->addend += ecoff_data (abfd)->gp;
- /* 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. This expression
- assumes that the external symbols are always the last item. */
- raw_base = ecoff_data (abfd)->sym_filepos + sizeof (external_symhdr);
- raw_size = (internal_symhdr->cbExtOffset - raw_base
- + internal_symhdr->iextMax * sizeof (struct ext_ext));
- 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;
- }
+ /* If the type is MIPS_R_IGNORE, make sure this is a reference to
+ the absolute section so that the reloc is ignored. */
+ if (intern->r_type == MIPS_R_IGNORE)
+ rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
- 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;
+ rptr->howto = &mips_howto_table[intern->r_type];
}
-\f
-/* ECOFF symbol table routines. The ECOFF symbol table is described
- in gcc/mips-tfile.c. */
-
-/* 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;
+/* ECOFF relocs are either against external symbols, or against
+ sections. If we are producing relocateable output, and the reloc
+ is against an external symbol, and nothing has given us any
+ additional addend, 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
+mips_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->addend == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ return bfd_reloc_continue;
}
-/* 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;
- if (ext)
- asym->flags = BSF_EXPORT | BSF_GLOBAL;
+/* Do a REFHI relocation. This has to be done in combination with a
+ REFLO reloc, because there is a carry from the REFLO to the REFHI.
+ Here we just save the information we need; we do the actual
+ relocation when we see the REFLO. MIPS ECOFF requires that the
+ REFLO immediately follow the REFHI, so this ought to work. */
+
+static bfd_byte *mips_refhi_addr;
+static bfd_vma mips_refhi_addend;
+
+static bfd_reloc_status_type
+mips_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;
+ bfd_vma relocation;
+
+ /* 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->addend == 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;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
else
- asym->flags = BSF_LOCAL;
- switch (ecoff_sym->sc)
- {
- case scNil:
- asym->flags = 0;
- 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:
- asym->section = &bfd_com_section;
- asym->flags = 0;
- break;
- case scRegister:
- asym->flags = BSF_DEBUGGING;
- break;
- case scAbs:
- asym->section = &bfd_abs_section;
- asym->flags = 0;
- break;
- case scUndefined:
- asym->section = &bfd_und_section;
- asym->flags = 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_com_section;
- asym->flags = 0;
- 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:
- case scSCommon:
- asym->section = &bfd_com_section;
- asym->flags = 0;
- break;
- case scVarRegister:
- case scVariant:
- asym->flags = BSF_DEBUGGING;
- break;
- case scSUndefined:
- asym->section = &bfd_und_section;
- asym->flags = 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:
- asym->flags = 0;
- 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;
+ relocation = symbol->value;
- 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;
- }
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
- 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;
- }
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
- /* 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;
+ /* Save the information, and let REFLO do the actual relocation. */
+ mips_refhi_addr = (bfd_byte *) data + reloc_entry->address;
+ mips_refhi_addend = relocation;
- 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;
- }
- }
+ if (output_bfd != (bfd *) NULL)
+ reloc_entry->address += input_section->output_offset;
- 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 *));
+ return ret;
}
-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);
+/* Do a REFLO relocation. This is a straightforward 16 bit inplace
+ relocation; this function exists in order to do the REFHI
+ relocation described above. */
+
+static bfd_reloc_status_type
+mips_reflo_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 (mips_refhi_addr != (bfd_byte *) NULL)
+ {
+ unsigned long insn;
+ unsigned long val;
+ unsigned long vallo;
+
+ /* Do the REFHI relocation. Note that we actually don't need to
+ know anything about the REFLO itself, except where to find
+ the low 16 bits of the addend needed by the REFHI. */
+ insn = bfd_get_32 (abfd, mips_refhi_addr);
+ vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address)
+ & 0xffff);
+ val = ((insn & 0xffff) << 16) + vallo;
+ val += mips_refhi_addend;
+
+ /* 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, mips_refhi_addr);
+
+ mips_refhi_addr = (bfd_byte *) NULL;
+ }
+
+ /* Now do the REFLO reloc in the usual way. */
+ return mips_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd);
}
-/* 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 */";
+/* Do a GPREL relocation. This is a 16 bit value which must become
+ the offset from the gp register. */
+
+static bfd_reloc_status_type
+mips_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 is an external symbol with no
+ addend, we don't want to change anything. We will only have an
+ addend if this is a newly created reloc, not read from an ECOFF
+ file. */
+ if (output_bfd != (bfd *) NULL
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (output_bfd != (bfd *) NULL)
+ relocateable = true;
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;
+ relocateable = false;
+ output_bfd = symbol->section->output_section->owner;
}
- 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. */
+ if (symbol->section == &bfd_und_section
+ && relocateable == false)
+ return bfd_reloc_undefined;
-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)
+ /* 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. We don't need to adjust the symbol value for an
+ external symbol if we are producing relocateable output. */
+ if (ecoff_data (output_bfd)->gp == 0
+ && (relocateable == false
+ || (symbol->flags & BSF_SECTION_SYM) != 0))
{
- 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);
- }
+ 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);
- /*
- * 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)
+ if (sym == (asymbol **) NULL)
+ i = count;
+ else
{
- 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;
+ 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;
+ }
+ }
}
- }
- /*
- * Now print out the qualifiers.
- */
- for (i = 0; i < 6; i++)
- {
- switch (qualifiers[i].type)
+ if (i >= count)
{
- 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;
+ /* Only get the error once. */
+ ecoff_data (output_bfd)->gp = 4;
+ /* FIXME: How can we get the program name here? */
+ fprintf (stderr,
+ "GP relative relocation when _gp not defined\n");
+ return bfd_reloc_dangerous;
}
}
}
- strcpy (p2, buffer1);
- return buffer2;
-}
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
-/* Print information about an ECOFF symbol. */
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
-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;
+ if (reloc_entry->address > input_section->_cooked_size)
+ return bfd_reloc_outofrange;
- 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 Type: %s",
- type_to_string (abfd, aux_base, indx, bigendian));
-
- break;
-
- default:
- if (!MIPS_IS_STAB (&ecoff_ext.asym))
- printf ("\n Type: %s",
- type_to_string (abfd, aux_base, indx, bigendian));
- break;
- }
- }
- }
- break;
- }
-}
-\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. */
+ insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
-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;
- SYMR proc_sym;
-
- /* If we're not in the .text section, we don't have any line
- numbers. */
- if (strcmp (section->name, _TEXT) != 0)
- return false;
+ /* Set val to the offset into the section or symbol. */
+ val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
+ if (val & 0x8000)
+ val -= 0x10000;
- /* Make sure we have the FDR's. */
- if (ecoff_slurp_symbolic_info (abfd) == false
- || bfd_get_symcount (abfd) == 0)
- return false;
+ /* Adjust val for the final section location and GP value. If we
+ are producing relocateable output, we don't want to do this for
+ an external symbol. */
+ if (relocateable == false
+ || (symbol->flags & BSF_SECTION_SYM) != 0)
+ val += relocation - ecoff_data (output_bfd)->gp;
- /* 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;
- }
+ insn = (insn &~ 0xffff) | (val & 0xffff);
+ bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
- /* 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 (relocateable != false)
+ reloc_entry->address += input_section->output_offset;
- /* If offset is too large, this line is not interesting. */
- if (offset > 100)
- return false;
+ /* Make sure it fit in 16 bits. */
+ if (val >= 0x8000 && val < 0xffff8000)
+ return bfd_reloc_outofrange;
- *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 + 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;
+ return bfd_reloc_ok;
}
-/* Handle an indirect seclet on the first pass. Set the contents of
- the output section, and accumulate the debugging information if
- any. */
+/* Get the howto structure for a generic reloc type. */
-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)
+static CONST struct reloc_howto_struct *
+mips_bfd_reloc_type_lookup (abfd, code)
+ bfd *abfd;
+ bfd_reloc_code_real_type code;
{
- bfd *input_bfd;
- HDRR *output_symhdr;
- HDRR *input_symhdr;
-
- 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. */
+ int mips_type;
- 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)
+ switch (code)
{
- asymbol **symbols;
- asymbol **sym_ptr;
- asymbol **sym_end;
-
- /* We just accumulate symbols from a non-ECOFF 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);
-
- 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;
- }
- else
- {
- ++output_symhdr->iextMax;
- output_symhdr->issExtMax += len + 1;
- }
- }
-
- bfd_release (output_bfd, (PTR) symbols);
-
- ++output_symhdr->ifdMax;
-
- return true;
+ case BFD_RELOC_16:
+ mips_type = MIPS_R_REFHALF;
+ break;
+ case BFD_RELOC_32:
+ mips_type = MIPS_R_REFWORD;
+ break;
+ case BFD_RELOC_MIPS_JMP:
+ mips_type = MIPS_R_JMPADDR;
+ break;
+ case BFD_RELOC_HI16_S:
+ mips_type = MIPS_R_REFHI;
+ break;
+ case BFD_RELOC_LO16:
+ mips_type = MIPS_R_REFLO;
+ break;
+ case BFD_RELOC_MIPS_GPREL:
+ mips_type = MIPS_R_GPREL;
+ break;
+ default:
+ return (CONST struct reloc_howto_struct *) NULL;
}
- /* We simply add in the information from another ECOFF BFD. First
- we make sure we have the symbolic information. */
- if (ecoff_slurp_symbolic_info (input_bfd) == false)
- return false;
- if (bfd_get_symcount (input_bfd) == 0)
- return true;
-
- input_symhdr = &ecoff_data (input_bfd)->symbolic_header;
-
- 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->issExtMax += input_symhdr->issExtMax;
- output_symhdr->ifdMax += input_symhdr->ifdMax;
- output_symhdr->iextMax += input_symhdr->iextMax;
-
- /* 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;
+ return &mips_howto_table[mips_type];
}
+\f
+#ifdef HOST_IRIX4
-/* Handle an arbitrary seclet on the first pass. */
+#include <core.out.h>
-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)
+struct sgi_core_struct
{
- 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 us. */
- {
- 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;
- }
-
- default:
- abort();
- }
+ int sig;
+ char cmd[CORE_NAMESIZE];
+};
- return true;
-}
+#define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
+#define core_signal(bfd) (core_hdr(bfd)->sig)
+#define core_command(bfd) (core_hdr(bfd)->cmd)
-/* 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 asection *
+make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
+ bfd *abfd;
+ CONST char *name;
+ flagword flags;
+ bfd_size_type _raw_size;
+ bfd_vma vma;
+ file_ptr filepos;
+{
+ asection *asect;
+
+ asect = bfd_make_section (abfd, name);
+ if (!asect)
+ return NULL;
-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;
+ asect->flags = flags;
+ asect->_raw_size = _raw_size;
+ asect->vma = vma;
+ asect->filepos = filepos;
+ asect->alignment_power = 4;
- 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;
+ return asect;
}
-/* 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)
+static bfd_target *
+ecoff_core_file_p (abfd)
+ bfd *abfd;
{
- bfd *input_bfd;
- HDRR *output_symhdr;
- HDRR *input_symhdr;
- ecoff_data_type *output_ecoff;
- ecoff_data_type *input_ecoff;
- FDR *fdr_ptr;
- FDR *fdr_end;
- struct fdr_ext *fdr_out;
- struct ext_ext *ext_ptr;
- struct ext_ext *ext_end;
- struct ext_ext *ext_out;
- long iss;
- long isym;
- long iline;
- long iopt;
- long ipdr;
- long iaux;
- long irfd;
- long cbline;
-
- 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 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);
+ int val;
+ int i;
+ char *secname;
+ struct coreout coreout;
+ struct idesc *idg, *idf, *ids;
- /* Handle the local symbols. */
- 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;
- }
+ val = bfd_read ((PTR)&coreout, 1, sizeof coreout, abfd);
+ if (val != sizeof coreout)
+ return 0;
- /* Handle the external symbols. */
- for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++)
- {
- EXTR internal_ext;
-
- if (((*sym_ptr)->flags & BSF_EXPORT) == 0)
- continue;
- memset (&internal_ext, 0, sizeof internal_ext);
- internal_ext.ifd = output_symhdr->ifdMax;
- internal_ext.asym.iss = ecoff_add_string (output_bfd,
- &fdr,
- (*sym_ptr)->name,
- true);
- internal_ext.asym.value = (*sym_ptr)->value;
- internal_ext.asym.st = stNil;
- internal_ext.asym.sc = scUndefined;
- internal_ext.asym.reserved = 0;
- internal_ext.asym.index = indexNil;
- ecoff_swap_ext_out (output_bfd, &internal_ext,
- (output_ecoff->external_ext
- + output_symhdr->iextMax));
- ++output_symhdr->iextMax;
- }
+ if (coreout.c_magic != CORE_MAGIC
+ || coreout.c_version != CORE_VERSION1)
+ return 0;
- bfd_release (output_bfd, (PTR) symbols);
+ core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, sizeof (struct sgi_core_struct));
+ if (!core_hdr (abfd))
+ return NULL;
- /* Leave everything else 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. */
+ strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
+ core_signal (abfd) = coreout.c_sigcause;
- ecoff_swap_fdr_out (output_bfd, &fdr,
- (output_ecoff->external_fdr
- + output_symhdr->ifdMax));
- ++output_symhdr->ifdMax;
- return true;
- }
+ bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET);
- /* This is an ECOFF BFD. We want to grab the information from
- input_bfd and attach it to output_bfd. */
- if (bfd_get_symcount (input_bfd) == 0)
- return true;
- input_ecoff = ecoff_data (input_bfd);
- input_symhdr = &input_ecoff->symbolic_header;
-
- /* Because ECOFF uses relative pointers for most of the debugging
- information, much of it can simply be copied from input_bfd to
- output_bfd. */
- memcpy (output_ecoff->line + output_symhdr->cbLineOffset,
- 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));
- memcpy (output_ecoff->ssext + output_symhdr->issExtMax,
- input_ecoff->ssext,
- input_symhdr->issExtMax * sizeof (char));
-
- /* Some of the information may need to be swapped. */
- if (output_bfd->xvec->byteorder_big_p == input_bfd->xvec->byteorder_big_p)
+ for (i = 0; i < coreout.c_nvmap; i++)
{
- /* 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_sym + output_symhdr->isymMax,
- input_ecoff->external_sym,
- input_symhdr->isymMax * sizeof (struct sym_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 sym_ext *sym_in;
- struct sym_ext *sym_end;
- struct sym_ext *sym_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 very 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;
+ struct vmap vmap;
- 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;
+ val = bfd_read ((PTR)&vmap, 1, sizeof vmap, abfd);
+ if (val != sizeof vmap)
+ break;
- ecoff_swap_pdr_in (input_bfd, pdr_in, &pdr);
- ecoff_swap_pdr_out (output_bfd, &pdr, pdr_out);
- }
- sym_in = input_ecoff->external_sym;
- sym_end = sym_in + input_symhdr->isymMax;
- sym_out = output_ecoff->external_sym + output_symhdr->isymMax;
- for (; sym_in < sym_end; sym_in++, sym_out++)
+ switch (vmap.v_type)
{
- SYMR sym;
-
- ecoff_swap_sym_in (input_bfd, sym_in, &sym);
- ecoff_swap_sym_out (output_bfd, &sym, sym_out);
+ case VDATA:
+ secname = ".data";
+ break;
+ case VSTACK:
+ secname = ".stack";
+ break;
+ default:
+ continue;
}
- 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);
- }
+ if (!make_bfd_asection (abfd, secname,
+ SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS,
+ vmap.v_len,
+ vmap.v_vaddr,
+ vmap.v_offset,
+ 2))
+ return NULL;
}
- /* Step through the FDR's of input_bfd, adjust the offsets, and
- swap them out. */
- iss = output_symhdr->issMax;
- isym = output_symhdr->isymMax;
- iline = output_symhdr->ilineMax;
- iopt = output_symhdr->ioptMax;
- ipdr = output_symhdr->ipdMax;
- iaux = output_symhdr->iauxMax;
- irfd = output_symhdr->crfd;
- cbline = output_symhdr->cbLineOffset;
-
- 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 = iss;
- iss += fdr.cbSs * sizeof (char);
- fdr.isymBase = isym;
- isym += fdr.csym * sizeof (struct sym_ext);
- fdr.ilineBase = iline;
- iline += fdr.cline;
- fdr.ioptBase = iopt;
- iopt += fdr.copt * sizeof (struct opt_ext);
- fdr.ipdFirst = ipdr;
- ipdr += fdr.cpd * sizeof (struct pdr_ext);
- fdr.iauxBase = iaux;
- iaux += fdr.caux * sizeof (union aux_ext);
- fdr.rfdBase = irfd;
- irfd += fdr.crfd * sizeof (struct rfd_ext);
- fdr.cbLineOffset = cbline;
- cbline += fdr.cbLine * sizeof (unsigned char);
-
- ecoff_swap_fdr_out (output_bfd, &fdr, fdr_out);
- }
+ /* Make sure that the regs are contiguous within the core file. */
- 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;
+ idg = &coreout.c_idesc[I_GPREGS];
+ idf = &coreout.c_idesc[I_FPREGS];
+ ids = &coreout.c_idesc[I_SPECREGS];
- 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;
- }
+ if (idg->i_offset + idg->i_len != idf->i_offset
+ || idf->i_offset + idf->i_len != ids->i_offset)
+ return 0; /* Can't deal with non-contig regs */
- /* We have to swap the external symbols in and out because we have
- to adjust the file descriptor indices. */
- ext_ptr = input_ecoff->external_ext;
- ext_end = ext_ptr + input_symhdr->iextMax;
- ext_out = output_ecoff->external_ext + output_symhdr->iextMax;
- for (; ext_ptr < ext_end; ext_ptr++, ext_out++)
- {
- EXTR ext;
-
- ecoff_swap_ext_in (input_bfd, ext_ptr, &ext);
- ext.ifd += output_symhdr->ifdMax;
- ecoff_swap_ext_out (output_bfd, &ext, ext_out);
- }
-
- /* 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->issExtMax += input_symhdr->issExtMax;
- output_symhdr->ifdMax += input_symhdr->ifdMax;
- output_symhdr->iextMax += input_symhdr->iextMax;
-
- /* Double check that the counts we got by stepping through the FDR's
- match the counts we got from input_symhdr. */
- BFD_ASSERT (output_symhdr->issMax == iss
- && output_symhdr->isymMax == isym
- && output_symhdr->ilineMax == iline
- && output_symhdr->ioptMax == iopt
- && output_symhdr->ipdMax == ipdr
- && output_symhdr->iauxMax == iaux
- && output_symhdr->cbLineOffset == cbline);
-
- return true;
-}
-
-/* This is the actual link routine. It makes two passes over all the
- seclets. */
+ bfd_seek (abfd, idg->i_offset, SEEK_SET);
-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;
- bfd_size_type size;
- char *raw;
-
- /* We accumulate the debugging information counts in the symbolic
- header. */
- symhdr = &ecoff_data (abfd)->symbolic_header;
- 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 are only going to look at each input BFD once. It is
- convenient to look at the code section first, so that the first
- time we look at a BFD we can set the text address (otherwise,
- when we get to the text section, we would have to be able to
- track down the file information associated with that BFD). So we
- actually do each pass in two sub passes; first the code sections,
- then the non-code sections. */
-
- /* 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;
- }
- }
- }
+ make_bfd_asection (abfd, ".reg",
+ SEC_ALLOC+SEC_HAS_CONTENTS,
+ idg->i_len + idf->i_len + ids->i_len,
+ 0,
+ idg->i_offset);
- /* 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;
- }
- }
- }
- }
+ /* OK, we believe you. You're a core file (sure, sure). */
- return true;
+ return abfd->xvec;
}
-\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)
+static char *
+ecoff_core_file_failing_command (abfd)
+ bfd *abfd;
{
- bfd_default_set_arch_mach (abfd, arch, machine);
- return arch == bfd_arch_mips;
+ return core_command (abfd);
}
-/* Calculate the file position for each section, and set
- reloc_filepos. */
-
-static void
-DEFUN (ecoff_compute_section_file_positions, (abfd),
- bfd *abfd)
+static int
+ecoff_core_file_failing_signal (abfd)
+ bfd *abfd;
{
- asection *current;
- asection *previous;
- file_ptr sofar;
- file_ptr old_sofar;
-
- sofar = FILHSZ;
-
- if (bfd_get_start_address (abfd))
- {
- /* A start address may have been added to the original file. In
- this case it will need an optional header to record it. */
- abfd->flags |= EXEC_P;
- }
-
- if (abfd->flags & EXEC_P)
- sofar += AOUTSZ;
-
- sofar += abfd->section_count * SCNHSZ;
-
- previous = (asection *) NULL;
- for (current = abfd->sections;
- current != (asection *) NULL;
- current = current->next)
- {
- /* Only deal with sections which have contents */
- if (! (current->flags & SEC_HAS_CONTENTS))
- continue;
-
- /* 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);
- if (previous != (asection *) NULL)
- previous->_raw_size += sofar - old_sofar;
-
- 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;
- previous = current;
- }
-
- ecoff_data (abfd)->reloc_filepos = sofar;
+ return core_signal (abfd);
}
-/* Set the contents of a section. */
-
static boolean
-DEFUN (ecoff_set_section_contents, (abfd, section, location, offset, count),
- bfd *abfd AND
- sec_ptr section AND
- PTR location AND
- file_ptr offset AND
- bfd_size_type count)
+ecoff_core_file_matches_executable_p (core_bfd, exec_bfd)
+ bfd *core_bfd, *exec_bfd;
{
- 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;
+ return true; /* XXX - FIXME */
}
+#else /* not def HOST_IRIX4 */
+#define ecoff_core_file_p _bfd_dummy_target
+#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
+#endif
+\f
+/* This is the ECOFF backend structure. The backend field of the
+ target vector points to this. */
-/* Write out an ECOFF file. */
-
-static boolean
-DEFUN (ecoff_write_object_contents, (abfd),
- bfd *abfd)
+static const struct ecoff_backend_data mips_ecoff_backend_data =
{
- 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;
-
- 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;
- ecoff_data (abfd)->sym_filepos = sym_base;
-
- text_size = 0;
- 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) ((abfd->flags & EXEC_P) ?
- (FILHSZ + AOUTSZ) : FILHSZ),
- 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;
- }
-
- /* FIXME: These numbers don't add up to what the MIPS tools
- produce, although I don't think it matters. */
- if ((section.s_flags & STYP_TEXT) != 0
- || (section.s_flags & STYP_RDATA) != 0
- || (section.s_flags & STYP_LIT8) != 0
- || (section.s_flags & STYP_LIT4) != 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_DATA) != 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;
-
- internal_f.f_nsyms = bfd_get_symcount(abfd);
- if (internal_f.f_nsyms != 0)
- internal_f.f_symptr = sym_base;
- else
- internal_f.f_symptr = 0;
-
- if (abfd->flags & EXEC_P)
- internal_f.f_opthdr = AOUTSZ;
- else
- internal_f.f_opthdr = 0;
-
- internal_f.f_flags = 0;
- 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. */
-
- if ((abfd->flags & EXEC_P) != 0)
- {
- internal_a.magic = ZMAGIC;
-
- /* FIXME: What should this be? */
- internal_a.vstamp = 0;
-
- internal_a.tsize = text_size;
- internal_a.text_start = text_start;
- internal_a.dsize = data_size;
- internal_a.data_start = data_start;
- internal_a.bsize = bss_size;
-
- internal_a.entry = bfd_get_start_address (abfd);
-
- /* FIXME: The MIPS optional header is larger than this.... */
- }
-
- /* Write out the file header and the optional header. */
-
- if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
- return false;
-
+ /* COFF backend structure. */
{
- FILHDR buff;
- ecoff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) &buff);
- if (bfd_write ((PTR) &buff, 1, FILHSZ, abfd) != FILHSZ)
- return false;
- }
-
- if ((abfd->flags & EXEC_P) != 0)
- {
- 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. */
-
- /* Write out the symbolic debugging information. */
- if (bfd_get_symcount (abfd) > 0)
- {
- struct hdr_ext buff;
-
- 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
-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
+ (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 */
+ (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */
+ mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out,
+ mips_ecoff_swap_scnhdr_out,
+ FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
+ mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in,
+ mips_ecoff_swap_scnhdr_in, mips_ecoff_bad_format_hook,
+ ecoff_set_arch_mach_hook, mips_ecoff_mkobject_hook,
+ ecoff_styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook,
+ ecoff_slurp_symbol_table, NULL, NULL
+ },
+ /* Supported architecture. */
+ bfd_arch_mips,
+ /* Big endian magic number. */
+ MIPS_MAGIC_BIG,
+ /* Little endian magic number. */
+ MIPS_MAGIC_LITTLE,
+ /* Symbol table magic number. */
+ magicSym,
+ /* Initial portion of armap string. */
+ "__________",
+ /* Alignment of debugging information. E.g., 4. */
+ 4,
+ /* The page boundary used to align sections in a demand-paged
+ executable file. E.g., 0x1000. */
+ 0x1000,
+ /* Bitsize of constructor entries. */
+ 32,
+ /* Reloc to use for constructor entries. */
+ &mips_howto_table[MIPS_R_REFWORD],
+ /* Sizes of external symbolic information. */
+ sizeof (struct hdr_ext),
+ sizeof (struct dnr_ext),
+ sizeof (struct pdr_ext),
+ sizeof (struct sym_ext),
+ sizeof (struct opt_ext),
+ sizeof (struct fdr_ext),
+ sizeof (struct rfd_ext),
+ sizeof (struct ext_ext),
+ /* Functions to swap in external symbolic data. */
+ ecoff_swap_hdr_in,
+ ecoff_swap_dnr_in,
+ ecoff_swap_pdr_in,
+ ecoff_swap_sym_in,
+ ecoff_swap_opt_in,
+ ecoff_swap_fdr_in,
+ ecoff_swap_rfd_in,
+ ecoff_swap_ext_in,
+ /* Functions to swap out external symbolic data. */
+ ecoff_swap_hdr_out,
+ ecoff_swap_dnr_out,
+ ecoff_swap_pdr_out,
+ ecoff_swap_sym_out,
+ ecoff_swap_opt_out,
+ ecoff_swap_fdr_out,
+ ecoff_swap_rfd_out,
+ ecoff_swap_ext_out,
+ /* External reloc size. */
+ RELSZ,
+ /* Reloc swapping functions. */
+ mips_ecoff_swap_reloc_in,
+ mips_ecoff_swap_reloc_out,
+ /* Backend reloc tweaking. */
+ mips_finish_reloc
};
-/* Routines that need to be written. */
-#define ecoff_canonicalize_reloc (unsigned int (*) PARAMS ((bfd *, sec_ptr, arelent **, struct symbol_cache_entry **))) bfd_0
-
-/* 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_slurp_armap bfd_slurp_coff_armap
-#define ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table
-#define ecoff_write_armap coff_write_armap
-#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
+/* Looking up a reloc type is MIPS specific. */
+#define ecoff_bfd_reloc_type_lookup mips_bfd_reloc_type_lookup
bfd_target ecoff_little_vec =
{
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+ HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect
flags */
0, /* leading underscore */
- '/', /* ar_pad_char */
+ ' ', /* 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 */
+ 4, /* minimum alignment power */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, ecoff_mkobject, bfd_false, /* bfd_set_format */
- bfd_false},
- {bfd_false, ecoff_write_object_contents, bfd_false, bfd_false},
+ ecoff_archive_p, _bfd_dummy_target},
+ {bfd_false, ecoff_mkobject, /* bfd_set_format */
+ _bfd_generic_mkarchive, 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
+ (PTR) &mips_ecoff_backend_data
};
bfd_target ecoff_big_vec =
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+ HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
(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,
+ 15, /* ar_max_namelen */
+ 4, /* minimum alignment power */
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16,
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16,
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, ecoff_mkobject, bfd_false, /* bfd_set_format */
- bfd_false},
+ ecoff_archive_p, ecoff_core_file_p},
+ {bfd_false, ecoff_mkobject, /* bfd_set_format */
+ _bfd_generic_mkarchive, bfd_false},
{bfd_false, ecoff_write_object_contents, /* bfd_write_contents */
- bfd_false, bfd_false},
+ _bfd_write_archive_contents, bfd_false},
JUMP_TABLE(ecoff),
- 0, 0,
- (PTR) &bfd_ecoff_std_swap_table
+ (PTR) &mips_ecoff_backend_data
/* 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. */