diff options
| author | Ian Lance Taylor <ian@airs.com> | 1993-08-03 20:22:47 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 1993-08-03 20:22:47 +0000 |
| commit | dae31cf51ba2425ba562de00011f49c16e25951a (patch) | |
| tree | 5c04a034d57ae5afcacaecf1a82ed52d6be5e87a /bfd/coff-mips.c | |
| parent | 511e0322b9876c19804c8a47fe0ecbc4ffb858b2 (diff) | |
| download | gdb-dae31cf51ba2425ba562de00011f49c16e25951a.zip gdb-dae31cf51ba2425ba562de00011f49c16e25951a.tar.gz gdb-dae31cf51ba2425ba562de00011f49c16e25951a.tar.bz2 | |
* ecoff.c: New file for generic ECOFF functions.
* ecoffswap.h: New file for ECOFF swapping functions which differ
only slightly for different targets.
* libecoff.h: Added prototypes for ecoff.c functions.
(ecoff_backend_data): New structure.
(ecoff_tdata): Added backend_data field. Changed external data
pointers to be PTR rather than to a particular struct.
(ecoff_symbol_struct): Moved in from coff-mips.c.
* coff-alpha.c, coff-mips.c: Moved common functions into ecoff.c.
Added ECOFF backend structures. Include ecoffswap.h.
* coff-msym.c: Removed; superseded by ecoffswap.h.
* bfd.c: Include coff/internal.h.
* Makefile.in (BFD_LIBS): Removed coff-mips.o and coff-msym.o.
Added ecoff.o.
(BFD64_BACKENDS): Added coff-alpha.o.
(CFILES): Removed coff-msym.c. Added ecoff.c.
(bfd.o): Added dependency on $(INCDIR)/coff/sym.h.
(coff-mips.o): Added dependency on ecoffswap.h and coff/ecoff.h.
(ecoff.o, coff-alpha.o): New targets.
(coff-msym.o): Removed target.
Diffstat (limited to 'bfd/coff-mips.c')
| -rw-r--r-- | bfd/coff-mips.c | 4194 |
1 files changed, 108 insertions, 4086 deletions
diff --git a/bfd/coff-mips.c b/bfd/coff-mips.c index 9bb00c9..a44a022 100644 --- a/bfd/coff-mips.c +++ b/bfd/coff-mips.c @@ -23,399 +23,122 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "sysdep.h" #include "libbfd.h" #include "seclet.h" -#include "aout/ar.h" -#include "aout/ranlib.h" - -/* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines - some other stuff which we don't want and which conflicts with stuff - we do want. */ -#include "libaout.h" -#include "aout/aout64.h" -#undef N_ABS -#undef exec_hdr -#undef obj_sym_filepos - -#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" #include "libecoff.h" - -/* 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))) - -/* The page boundary used to align sections in the executable file. */ -#define ROUND_SIZE 0x1000 - -/* The linker needs a section to hold small common variables while - linking. There is no convenient way to create it when the linker - needs it, so we always create one for each BFD. We then avoid - writing it out. */ -#define SCOMMON ".scommon" - -/* 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. */ /* Prototypes for static functions. */ -static boolean ecoff_bad_format_hook PARAMS ((bfd *abfd, PTR filehdr)); -static asection *ecoff_make_section_hook PARAMS ((bfd *abfd, char *name)); -static boolean ecoff_new_section_hook PARAMS ((bfd *abfd, asection *section)); -static boolean ecoff_mkobject PARAMS ((bfd *abfd)); -static PTR ecoff_mkobject_hook PARAMS ((bfd *abfd, PTR filehdr, PTR aouthdr)); -static boolean ecoff_set_arch_mach_hook PARAMS ((bfd *abfd, PTR filehdr)); -static long ecoff_sec_to_styp_flags PARAMS ((CONST char *name, - flagword flags)); -static flagword ecoff_styp_to_sec_flags PARAMS ((bfd *abfd, PTR hdr)); -static asymbol *ecoff_make_empty_symbol PARAMS ((bfd *abfd)); -static void ecoff_set_symbol_info PARAMS ((bfd *abfd, SYMR *ecoff_sym, - asymbol *asym, int ext, - asymbol **indirect_ptr_ptr)); -static boolean ecoff_slurp_symbol_table PARAMS ((bfd *abfd)); -static unsigned int ecoff_get_symtab_upper_bound PARAMS ((bfd *abfd)); -static unsigned int ecoff_get_symtab PARAMS ((bfd *abfd, - asymbol **alocation)); -static void ecoff_emit_aggregate PARAMS ((bfd *abfd, char *string, - RNDXR *rndx, long isym, - CONST char *which)); -static char *ecoff_type_to_string PARAMS ((bfd *abfd, union aux_ext *aux_ptr, - int indx, int bigendian)); -static void ecoff_print_symbol PARAMS ((bfd *abfd, PTR filep, - asymbol *symbol, - bfd_print_symbol_type how)); -static void ecoff_get_symbol_info PARAMS ((bfd *abfd, - asymbol *symbol, - symbol_info *ret)); -static void ecoff_swap_reloc_in PARAMS ((bfd *abfd, RELOC *ext, - struct internal_reloc *intern)); -static unsigned int ecoff_swap_reloc_out PARAMS ((bfd *abfd, PTR src, - PTR dst)); -static bfd_reloc_status_type ecoff_generic_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd)); -static bfd_reloc_status_type ecoff_refhi_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd)); -static bfd_reloc_status_type ecoff_reflo_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd)); -static bfd_reloc_status_type ecoff_gprel_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd)); -static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section, - asymbol **symbols)); -static unsigned int ecoff_canonicalize_reloc PARAMS ((bfd *abfd, - asection *section, - arelent **relptr, - asymbol **symbols)); -static CONST struct reloc_howto_struct *ecoff_bfd_reloc_type_lookup - PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); -static boolean ecoff_find_nearest_line PARAMS ((bfd *abfd, - asection *section, - asymbol **symbols, - bfd_vma offset, - CONST char **filename_ptr, - CONST char **fnname_ptr, - unsigned int *retline_ptr)); -static void ecoff_clear_output_flags PARAMS ((bfd *abfd)); -static boolean ecoff_rel PARAMS ((bfd *output_bfd, bfd_seclet_type *seclet, - asection *output_section, PTR data, - boolean relocateable)); -static boolean ecoff_dump_seclet PARAMS ((bfd *abfd, bfd_seclet_type *seclet, - asection *section, PTR data, - boolean relocateable)); -static long ecoff_add_string PARAMS ((bfd *output_bfd, FDR *fdr, - CONST char *string, boolean external)); -static boolean ecoff_get_debug PARAMS ((bfd *output_bfd, - bfd_seclet_type *seclet, - asection *section, - boolean relocateable)); -static boolean ecoff_bfd_seclet_link PARAMS ((bfd *abfd, PTR data, - boolean relocateable)); -static boolean ecoff_set_arch_mach PARAMS ((bfd *abfd, - enum bfd_architecture arch, - unsigned long machine)); -static int ecoff_sizeof_headers PARAMS ((bfd *abfd, boolean reloc)); -static void ecoff_compute_section_file_positions PARAMS ((bfd *abfd)); -static boolean ecoff_set_section_contents PARAMS ((bfd *abfd, - asection *section, - PTR location, - file_ptr offset, - bfd_size_type count)); -static boolean ecoff_write_object_contents PARAMS ((bfd *abfd)); -static unsigned int ecoff_armap_hash PARAMS ((CONST char *s, - unsigned int *rehash, - unsigned int size, - unsigned int hlog)); -static boolean ecoff_slurp_armap PARAMS ((bfd *abfd)); -static boolean ecoff_write_armap PARAMS ((bfd *abfd, unsigned int elength, - struct orl *map, - unsigned int orl_count, - int stridx)); -static bfd_target *ecoff_archive_p PARAMS ((bfd *abfd)); +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)); -/* Get the generic COFF swapping routines, except for the reloc, + +/* 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" - -/* How to process the various relocs types. */ - -static reloc_howto_type ecoff_howto_table[] = -{ - /* Reloc type 0 is ignored. The reloc reading code ensures that - this is a reference to the .abs section, which will cause - bfd_perform_relocation to do nothing. */ - HOWTO (ECOFF_R_IGNORE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - false, /* complain_on_overflow */ - 0, /* special_function */ - "IGNORE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 16 bit reference to a symbol, normally from a data section. */ - HOWTO (ECOFF_R_REFHALF, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - true, /* complain_on_overflow */ - ecoff_generic_reloc, /* special_function */ - "REFHALF", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 32 bit reference to a symbol, normally from a data section. */ - HOWTO (ECOFF_R_REFWORD, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - true, /* complain_on_overflow */ - ecoff_generic_reloc, /* special_function */ - "REFWORD", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 26 bit absolute jump address. */ - HOWTO (ECOFF_R_JMPADDR, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - true, /* complain_on_overflow */ - ecoff_generic_reloc, /* special_function */ - "JMPADDR", /* name */ - true, /* partial_inplace */ - 0x3ffffff, /* src_mask */ - 0x3ffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* The high 16 bits of a symbol value. Handled by the function - ecoff_refhi_reloc. */ - HOWTO (ECOFF_R_REFHI, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - true, /* complain_on_overflow */ - ecoff_refhi_reloc, /* special_function */ - "REFHI", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - /* The low 16 bits of a symbol value. */ - HOWTO (ECOFF_R_REFLO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - true, /* complain_on_overflow */ - ecoff_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 ecoff_gprel_reloc. */ - HOWTO (ECOFF_R_GPREL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - true, /* complain_on_overflow */ - ecoff_gprel_reloc, /* special_function */ - "GPREL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A reference to a literal using an offset from the gp register. - Handled by the function ecoff_gprel_reloc. */ - HOWTO (ECOFF_R_LITERAL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize (obsolete) */ - false, /* pc_relative */ - 0, /* bitpos */ - false, /* absolute (obsolete) */ - true, /* complain_on_overflow */ - ecoff_gprel_reloc, /* special_function */ - "LITERAL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false) /* pcrel_offset */ +/* Get the ECOFF swapping routines. */ +#define ECOFF_32 +#include "ecoffswap.h" + +/* This is the ECOFF backend structure. The backend_data field of the + ecoff_tdata structure is set to this when an ECOFF BFD is + initialized. This is used by the generic ECOFF routines. */ + +static const struct ecoff_backend_data mips_ecoff_backend_data = +{ + /* Supported architecture. */ + bfd_arch_mips, + /* Big endian magic number. */ + MIPS_MAGIC_BIG, + /* Little endian magic number. */ + MIPS_MAGIC_LITTLE, + /* 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, + /* 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 }; - -#define ECOFF_HOWTO_COUNT \ - (sizeof ecoff_howto_table / sizeof ecoff_howto_table[0]) -/* This stuff is somewhat copied from coffcode.h. */ - -static asection bfd_debug_section = { "*DEBUG*" }; - /* See whether the magic number matches. */ static boolean -ecoff_bad_format_hook (abfd, 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. */ - -static asection * -ecoff_make_section_hook (abfd, name) - bfd *abfd; - char *name; -{ - return (asection *) NULL; -} - -/* Initialize a new section. */ - -static boolean -ecoff_new_section_hook (abfd, section) - bfd *abfd; - 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; -} - -/* Set the alignment of a section; we have nothing to do. */ - -#define ecoff_set_alignment_hook \ - ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void) - /* Create an ECOFF object. */ static boolean -ecoff_mkobject (abfd) +mips_ecoff_mkobject (abfd) bfd *abfd; { abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) @@ -426,6 +149,8 @@ ecoff_mkobject (abfd) return false; } + ecoff_data (abfd)->backend_data = &mips_ecoff_backend_data; + /* Always create a .scommon section for every BFD. This is a hack so that the linker has something to attach scSCommon symbols to. */ bfd_make_section (abfd, SCOMMON); @@ -433,10 +158,10 @@ ecoff_mkobject (abfd) return true; } -/* Create the ECOFF backend specific information. */ +/* Create the MIPS ECOFF backend specific information. */ static PTR -ecoff_mkobject_hook (abfd, filehdr, aouthdr) +mips_ecoff_mkobject_hook (abfd, filehdr, aouthdr) bfd *abfd; PTR filehdr; PTR aouthdr; @@ -445,7 +170,7 @@ ecoff_mkobject_hook (abfd, filehdr, aouthdr) struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; ecoff_data_type *ecoff; - if (ecoff_mkobject (abfd) == false) + if (mips_ecoff_mkobject (abfd) == false) return NULL; ecoff = ecoff_data (abfd); @@ -462,1233 +187,12 @@ ecoff_mkobject_hook (abfd, filehdr, aouthdr) ecoff->gprmask = internal_a->gprmask; for (i = 0; i < 4; i++) ecoff->cprmask[i] = internal_a->cprmask[i]; - if (internal_a->magic == MIPS_AOUT_ZMAGIC) + if (internal_a->magic == ECOFF_AOUT_ZMAGIC) abfd->flags |= D_PAGED; } return (PTR) ecoff; } - -/* Determine the machine architecture and type. */ - -static boolean -ecoff_set_arch_mach_hook (abfd, filehdr) - bfd *abfd; - PTR filehdr; -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - enum bfd_architecture arch; - - switch (internal_f->f_magic) - { - case MIPS_MAGIC_1: - case MIPS_MAGIC_LITTLE: - case MIPS_MAGIC_BIG: - arch = bfd_arch_mips; - break; - - default: - arch = bfd_arch_obscure; - break; - } - - bfd_default_set_arch_mach (abfd, arch, (unsigned long) 0); - - return true; -} - -/* Get the section s_flags to use for a section. */ - -static long -ecoff_sec_to_styp_flags (name, flags) - CONST char *name; - 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 (strcmp (name, _INIT) == 0) - styp = STYP_MIPS_INIT; - 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_REG; - 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 -ecoff_styp_to_sec_flags (abfd, hdr) - bfd *abfd; - 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) - || (styp_flags & STYP_MIPS_INIT)) - { - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; - else - sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; - } - else if ((styp_flags & STYP_DATA) - || (styp_flags & STYP_RDATA) - || (styp_flags & STYP_SDATA)) - { - if (sec_flags & SEC_NEVER_LOAD) - sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; - else - sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; - if (styp_flags & STYP_RDATA) - sec_flags |= SEC_READONLY; - } - else if ((styp_flags & STYP_BSS) - || (styp_flags & STYP_SBSS)) - { - sec_flags |= SEC_ALLOC; - } - else if (styp_flags & STYP_INFO) - { - sec_flags |= SEC_NEVER_LOAD; - } - else if ((styp_flags & STYP_LIT8) - || (styp_flags & STYP_LIT4)) - { - sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; - } - else - { - sec_flags |= SEC_ALLOC | SEC_LOAD; - } - - return sec_flags; -} - -/* Read in and swap the important symbolic information for an ECOFF - object file. FIXME: This is called by gdb. If there is ever - another ECOFF target, it should be moved into some sort of target - specific structure. */ - -boolean -ecoff_slurp_symbolic_info (abfd) - bfd *abfd; -{ - struct hdr_ext external_symhdr; - HDRR *internal_symhdr; - bfd_size_type raw_base; - bfd_size_type raw_size; - PTR raw; - struct fdr_ext *fraw_src; - struct fdr_ext *fraw_end; - struct fdr *fdr_ptr; - - /* Check whether we've already gotten it, and whether there's any to - get. */ - if (ecoff_data (abfd)->raw_syments != (PTR) NULL) - return true; - if (ecoff_data (abfd)->sym_filepos == 0) - { - bfd_get_symcount (abfd) = 0; - return true; - } - - /* At this point bfd_get_symcount (abfd) holds the number of symbols - as read from the file header, but on ECOFF this is always the - size of the symbolic information header. It would be cleaner to - handle this when we first read the file in coffgen.c. */ - if (bfd_get_symcount (abfd) != sizeof (external_symhdr)) - { - bfd_error = bad_value; - return false; - } - - /* Read the symbolic information header. */ - if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 - || (bfd_read ((PTR) &external_symhdr, sizeof (external_symhdr), 1, abfd) - != sizeof (external_symhdr))) - { - bfd_error = system_call_error; - return false; - } - internal_symhdr = &ecoff_data (abfd)->symbolic_header; - ecoff_swap_hdr_in (abfd, &external_symhdr, internal_symhdr); - - if (internal_symhdr->magic != magicSym) - { - bfd_error = bad_value; - return false; - } - - /* Now we can get the correct number of symbols. */ - bfd_get_symcount (abfd) = (internal_symhdr->isymMax - + internal_symhdr->iextMax); - - /* Read all the symbolic information at once. */ - raw_base = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext); - - if (internal_symhdr->cbExtOffset != 0) - raw_size = (internal_symhdr->cbExtOffset - - raw_base - + internal_symhdr->iextMax * sizeof (struct ext_ext)); - else - { - long cbline, issmax, issextmax; - - cbline = (internal_symhdr->cbLine + 3) &~ 3; - issmax = (internal_symhdr->issMax + 3) &~ 3; - issextmax = (internal_symhdr->issExtMax + 3) &~ 3; - raw_size = (cbline * sizeof (unsigned char) - + internal_symhdr->idnMax * sizeof (struct dnr_ext) - + internal_symhdr->ipdMax * sizeof (struct pdr_ext) - + internal_symhdr->isymMax * sizeof (struct sym_ext) - + internal_symhdr->ioptMax * sizeof (struct opt_ext) - + internal_symhdr->iauxMax * sizeof (union aux_ext) - + issmax * sizeof (char) - + issextmax * sizeof (char) - + internal_symhdr->ifdMax * sizeof (struct fdr_ext) - + internal_symhdr->crfd * sizeof (struct rfd_ext) - + internal_symhdr->iextMax * sizeof (struct ext_ext)); - } - - if (raw_size == 0) - { - ecoff_data (abfd)->sym_filepos = 0; - return true; - } - raw = (PTR) bfd_alloc (abfd, raw_size); - if (raw == NULL) - { - bfd_error = no_memory; - return false; - } - if (bfd_read (raw, raw_size, 1, abfd) != raw_size) - { - bfd_error = system_call_error; - bfd_release (abfd, raw); - return false; - } - - ecoff_data (abfd)->raw_size = raw_size; - ecoff_data (abfd)->raw_syments = raw; - - /* Get pointers for the numeric offsets in the HDRR structure. */ -#define FIX(off1, off2, type) \ - if (internal_symhdr->off1 == 0) \ - ecoff_data (abfd)->off2 = (type *) NULL; \ - else \ - ecoff_data (abfd)->off2 = (type *) ((char *) raw \ - + internal_symhdr->off1 \ - - raw_base) - FIX (cbLineOffset, line, unsigned char); - FIX (cbDnOffset, external_dnr, struct dnr_ext); - FIX (cbPdOffset, external_pdr, struct pdr_ext); - FIX (cbSymOffset, external_sym, struct sym_ext); - FIX (cbOptOffset, external_opt, struct opt_ext); - FIX (cbAuxOffset, external_aux, union aux_ext); - FIX (cbSsOffset, ss, char); - FIX (cbSsExtOffset, ssext, char); - FIX (cbFdOffset, external_fdr, struct fdr_ext); - FIX (cbRfdOffset, external_rfd, struct rfd_ext); - FIX (cbExtOffset, external_ext, struct ext_ext); -#undef FIX - - /* I don't want to always swap all the data, because it will just - waste time and most programs will never look at it. The only - time the linker needs most of the debugging information swapped - is when linking big-endian and little-endian MIPS object files - together, which is not a common occurrence. - - We need to look at the fdr to deal with a lot of information in - the symbols, so we swap them here. */ - ecoff_data (abfd)->fdr = (struct fdr *) bfd_alloc (abfd, - (internal_symhdr->ifdMax * - sizeof (struct fdr))); - if (ecoff_data (abfd)->fdr == NULL) - { - bfd_error = no_memory; - return false; - } - fdr_ptr = ecoff_data (abfd)->fdr; - fraw_src = ecoff_data (abfd)->external_fdr; - fraw_end = fraw_src + internal_symhdr->ifdMax; - for (; fraw_src < fraw_end; fraw_src++, fdr_ptr++) - ecoff_swap_fdr_in (abfd, fraw_src, fdr_ptr); - - return true; -} - -/* ECOFF symbol table routines. The ECOFF symbol table is described - in gcc/mips-tfile.c. */ - -/* ECOFF uses two common sections. One is the usual one, and the - other is for small objects. All the small objects are kept - together, and then referenced via the gp pointer, which yields - faster assembler code. This is what we use for the small common - section. */ -static asection ecoff_scom_section; -static asymbol ecoff_scom_symbol; -static asymbol *ecoff_scom_symbol_ptr; - -/* Create an empty symbol. */ - -static asymbol * -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; - } - memset (new, 0, sizeof *new); - new->symbol.section = (asection *) NULL; - new->fdr = (FDR *) NULL; - new->local = false; - new->native.lnative = (struct sym_ext *) NULL; - new->symbol.the_bfd = abfd; - return &new->symbol; -} - -/* Set the BFD flags and section for an ECOFF symbol. */ - -static void -ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, indirect_ptr_ptr) - bfd *abfd; - SYMR *ecoff_sym; - asymbol *asym; - int ext; - asymbol **indirect_ptr_ptr; -{ - asym->the_bfd = abfd; - asym->value = ecoff_sym->value; - asym->section = &bfd_debug_section; - asym->udata = NULL; - - /* An indirect symbol requires two consecutive stabs symbols. */ - if (*indirect_ptr_ptr != (asymbol *) NULL) - { - BFD_ASSERT (MIPS_IS_STAB (ecoff_sym)); - - /* @@ Stuffing pointers into integers is a no-no. - We can usually get away with it if the integer is - large enough though. */ - if (sizeof (asym) > sizeof (bfd_vma)) - abort (); - (*indirect_ptr_ptr)->value = (bfd_vma) asym; - - asym->flags = BSF_DEBUGGING; - asym->section = &bfd_und_section; - *indirect_ptr_ptr = NULL; - return; - } - - if (MIPS_IS_STAB (ecoff_sym) - && (MIPS_UNMARK_STAB (ecoff_sym->index) | N_EXT) == (N_INDR | N_EXT)) - { - asym->flags = BSF_DEBUGGING | BSF_INDIRECT; - asym->section = &bfd_ind_section; - /* Pass this symbol on to the next call to this function. */ - *indirect_ptr_ptr = asym; - return; - } - - /* Most symbol types are just for debugging. */ - switch (ecoff_sym->st) - { - case stGlobal: - case stStatic: - case stLabel: - case stProc: - case stStaticProc: - break; - case stNil: - if (MIPS_IS_STAB (ecoff_sym)) - { - asym->flags = BSF_DEBUGGING; - return; - } - break; - default: - asym->flags = BSF_DEBUGGING; - return; - } - - if (ext) - asym->flags = BSF_EXPORT | BSF_GLOBAL; - else - asym->flags = BSF_LOCAL; - switch (ecoff_sym->sc) - { - case scNil: - /* Used for compiler generated labels. Leave them in the - debugging section, and mark them as local. If BSF_DEBUGGING - is set, then nm does not display them for some reason. If no - flags are set then the linker whines about them. */ - asym->flags = BSF_LOCAL; - break; - case scText: - asym->section = bfd_make_section_old_way (abfd, ".text"); - asym->value -= asym->section->vma; - break; - case scData: - asym->section = bfd_make_section_old_way (abfd, ".data"); - asym->value -= asym->section->vma; - break; - case scBss: - if (ext) - { - asym->section = &bfd_com_section; - asym->flags = 0; - } - else - { - asym->section = bfd_make_section_old_way (abfd, ".bss"); - asym->value -= asym->section->vma; - } - break; - case scRegister: - asym->flags = BSF_DEBUGGING; - break; - case scAbs: - asym->section = &bfd_abs_section; - break; - case scUndefined: - asym->section = &bfd_und_section; - asym->flags = 0; - asym->value = 0; - break; - case scCdbLocal: - case scBits: - case scCdbSystem: - case scRegImage: - case scInfo: - case scUserStruct: - asym->flags = BSF_DEBUGGING; - break; - case scSData: - asym->section = bfd_make_section_old_way (abfd, ".sdata"); - asym->value -= asym->section->vma; - break; - case scSBss: - asym->section = bfd_make_section_old_way (abfd, ".sbss"); - if (! ext) - asym->value -= asym->section->vma; - break; - case scRData: - asym->section = bfd_make_section_old_way (abfd, ".rdata"); - asym->value -= asym->section->vma; - break; - case scVar: - asym->flags = BSF_DEBUGGING; - break; - case scCommon: - if (asym->value > ecoff_data (abfd)->gp_size) - { - asym->section = &bfd_com_section; - asym->flags = 0; - break; - } - /* Fall through. */ - case scSCommon: - if (ecoff_scom_section.name == NULL) - { - /* Initialize the small common section. */ - ecoff_scom_section.name = SCOMMON; - ecoff_scom_section.flags = SEC_IS_COMMON; - ecoff_scom_section.output_section = &ecoff_scom_section; - ecoff_scom_section.symbol = &ecoff_scom_symbol; - ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; - ecoff_scom_symbol.name = SCOMMON; - ecoff_scom_symbol.flags = BSF_SECTION_SYM; - ecoff_scom_symbol.section = &ecoff_scom_section; - ecoff_scom_symbol_ptr = &ecoff_scom_symbol; - } - asym->section = &ecoff_scom_section; - asym->flags = 0; - break; - case scVarRegister: - case scVariant: - asym->flags = BSF_DEBUGGING; - break; - case scSUndefined: - asym->section = &bfd_und_section; - asym->flags = 0; - asym->value = 0; - break; - case scInit: - asym->section = bfd_make_section_old_way (abfd, ".init"); - asym->value -= asym->section->vma; - break; - case scBasedVar: - case scXData: - case scPData: - asym->flags = BSF_DEBUGGING; - break; - case scFini: - asym->section = bfd_make_section_old_way (abfd, ".fini"); - asym->value -= asym->section->vma; - break; - default: - break; - } - - /* Look for special constructors symbols and make relocation entries - in a special construction section. These are produced by the - -fgnu-linker argument to g++. */ - if (MIPS_IS_STAB (ecoff_sym)) - { - switch (MIPS_UNMARK_STAB (ecoff_sym->index)) - { - default: - break; - - case N_SETA: - case N_SETT: - case N_SETD: - case N_SETB: - { - const char *name; - asection *section; - arelent_chain *reloc_chain; - - /* Get a section with the same name as the symbol (usually - __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the - name ___CTOR_LIST (three underscores). We need - __CTOR_LIST (two underscores), since ECOFF doesn't use - a leading underscore. This should be handled by gcc, - but instead we do it here. Actually, this should all - be done differently anyhow. */ - name = bfd_asymbol_name (asym); - if (name[0] == '_' && name[1] == '_' && name[2] == '_') - { - ++name; - asym->name = name; - } - section = bfd_get_section_by_name (abfd, name); - if (section == (asection *) NULL) - { - char *copy; - - copy = (char *) bfd_alloc (abfd, strlen (name) + 1); - strcpy (copy, name); - section = bfd_make_section (abfd, copy); - } - - /* Build a reloc pointing to this constructor. */ - reloc_chain = (arelent_chain *) bfd_alloc (abfd, - sizeof (arelent_chain)); - reloc_chain->relent.sym_ptr_ptr = - bfd_get_section (asym)->symbol_ptr_ptr; - reloc_chain->relent.address = section->_raw_size; - reloc_chain->relent.addend = asym->value; - - /* FIXME: Assumes 32 bit __CTOR_LIST__ entries. */ - reloc_chain->relent.howto = ecoff_howto_table + ECOFF_R_REFWORD; - - /* Set up the constructor section to hold the reloc. */ - section->flags = SEC_CONSTRUCTOR; - ++section->reloc_count; - - /* Constructor sections must be rounded to a four byte - boundary (FIXME: assuming 32 bit entries). These are - not real sections--they are handled specially by the - linker--so the ECOFF 16 byte alignment restriction does - not apply. */ - section->alignment_power = 2; - - reloc_chain->next = section->constructor_chain; - section->constructor_chain = reloc_chain; - - /* FIXME: Assumes 32 bit __CTOR_LIST__ entries. */ - section->_raw_size += 4; - - /* Mark the symbol as a constructor. */ - asym->flags |= BSF_CONSTRUCTOR; - } - break; - } - } -} - -/* Read an ECOFF symbol table. */ - -static boolean -ecoff_slurp_symbol_table (abfd) - bfd *abfd; -{ - bfd_size_type internal_size; - ecoff_symbol_type *internal; - ecoff_symbol_type *internal_ptr; - asymbol *indirect_ptr; - struct ext_ext *eraw_src; - struct ext_ext *eraw_end; - FDR *fdr_ptr; - FDR *fdr_end; - - /* If we've already read in the symbol table, do nothing. */ - if (ecoff_data (abfd)->canonical_symbols != NULL) - return true; - - /* Get the symbolic information. */ - if (ecoff_slurp_symbolic_info (abfd) == false) - return false; - if (bfd_get_symcount (abfd) == 0) - return true; - - internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); - internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); - if (internal == NULL) - { - bfd_error = no_memory; - return false; - } - - internal_ptr = internal; - indirect_ptr = NULL; - 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, &indirect_ptr); - internal_ptr->fdr = ecoff_data (abfd)->fdr + internal_esym.ifd; - internal_ptr->local = false; - internal_ptr->native.enative = eraw_src; - } - BFD_ASSERT (indirect_ptr == (asymbol *) NULL); - - /* The local symbols must be accessed via the fdr's, because the - string and aux indices are relative to the fdr information. */ - fdr_ptr = ecoff_data (abfd)->fdr; - fdr_end = fdr_ptr + ecoff_data (abfd)->symbolic_header.ifdMax; - for (; fdr_ptr < fdr_end; fdr_ptr++) - { - struct sym_ext *lraw_src; - struct sym_ext *lraw_end; - - lraw_src = ecoff_data (abfd)->external_sym + fdr_ptr->isymBase; - lraw_end = lraw_src + fdr_ptr->csym; - for (; lraw_src < lraw_end; lraw_src++, internal_ptr++) - { - SYMR internal_sym; - - ecoff_swap_sym_in (abfd, lraw_src, &internal_sym); - internal_ptr->symbol.name = (ecoff_data (abfd)->ss - + fdr_ptr->issBase - + internal_sym.iss); - ecoff_set_symbol_info (abfd, &internal_sym, - &internal_ptr->symbol, 0, &indirect_ptr); - internal_ptr->fdr = fdr_ptr; - internal_ptr->local = true; - internal_ptr->native.lnative = lraw_src; - } - } - BFD_ASSERT (indirect_ptr == (asymbol *) NULL); - - ecoff_data (abfd)->canonical_symbols = internal; - - return true; -} - -static unsigned int -ecoff_get_symtab_upper_bound (abfd) - bfd *abfd; -{ - if (ecoff_slurp_symbolic_info (abfd) == false - || bfd_get_symcount (abfd) == 0) - return 0; - - return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); -} - -static unsigned int -ecoff_get_symtab (abfd, alocation) - bfd *abfd; - asymbol **alocation; -{ - unsigned int counter = 0; - ecoff_symbol_type *symbase; - ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; - - if (ecoff_slurp_symbol_table (abfd) == false - || bfd_get_symcount (abfd) == 0) - return 0; - - symbase = ecoff_data (abfd)->canonical_symbols; - while (counter < bfd_get_symcount (abfd)) - { - *(location++) = symbase++; - counter++; - } - *location++ = (ecoff_symbol_type *) NULL; - return bfd_get_symcount (abfd); -} - -/* Turn ECOFF type information into a printable string. - ecoff_emit_aggregate and ecoff_type_to_string are from - gcc/mips-tdump.c, with swapping added and used_ptr removed. */ - -/* Write aggregate information to a string. */ - -static void -ecoff_emit_aggregate (abfd, string, rndx, isym, which) - bfd *abfd; - char *string; - RNDXR *rndx; - long isym; - CONST char *which; -{ - int ifd = rndx->rfd; - int indx = rndx->index; - int sym_base, ss_base; - CONST char *name; - - if (ifd == 0xfff) - ifd = isym; - - sym_base = ecoff_data (abfd)->fdr[ifd].isymBase; - ss_base = ecoff_data (abfd)->fdr[ifd].issBase; - - if (indx == indexNil) - name = "/* no name */"; - else - { - SYMR sym; - - indx += sym_base; - ecoff_swap_sym_in (abfd, - ecoff_data (abfd)->external_sym + indx, - &sym); - name = ecoff_data (abfd)->ss + ss_base + sym.iss; - } - - sprintf (string, - "%s %s { ifd = %d, index = %d }", - which, name, ifd, - indx + ecoff_data (abfd)->symbolic_header.iextMax); -} - -/* Convert the type information to string format. */ - -static char * -ecoff_type_to_string (abfd, aux_ptr, indx, bigendian) - bfd *abfd; - union aux_ext *aux_ptr; - int indx; - int bigendian; -{ - AUXU u; - struct qual { - unsigned int type; - int low_bound; - int high_bound; - int stride; - } qualifiers[7]; - - unsigned int basic_type; - int i; - static char buffer1[1024]; - static char buffer2[1024]; - char *p1 = buffer1; - char *p2 = buffer2; - RNDXR rndx; - - for (i = 0; i < 7; i++) - { - qualifiers[i].low_bound = 0; - qualifiers[i].high_bound = 0; - qualifiers[i].stride = 0; - } - - if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) - return "-1 (no type)"; - ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); - - basic_type = u.ti.bt; - qualifiers[0].type = u.ti.tq0; - qualifiers[1].type = u.ti.tq1; - qualifiers[2].type = u.ti.tq2; - qualifiers[3].type = u.ti.tq3; - qualifiers[4].type = u.ti.tq4; - qualifiers[5].type = u.ti.tq5; - qualifiers[6].type = tqNil; - - /* - * Go get the basic type. - */ - switch (basic_type) - { - case btNil: /* undefined */ - strcpy (p1, "nil"); - break; - - case btAdr: /* address - integer same size as pointer */ - strcpy (p1, "address"); - break; - - case btChar: /* character */ - strcpy (p1, "char"); - break; - - case btUChar: /* unsigned character */ - strcpy (p1, "unsigned char"); - break; - - case btShort: /* short */ - strcpy (p1, "short"); - break; - - case btUShort: /* unsigned short */ - strcpy (p1, "unsigned short"); - break; - - case btInt: /* int */ - strcpy (p1, "int"); - break; - - case btUInt: /* unsigned int */ - strcpy (p1, "unsigned int"); - break; - - case btLong: /* long */ - strcpy (p1, "long"); - break; - - case btULong: /* unsigned long */ - strcpy (p1, "unsigned long"); - break; - - case btFloat: /* float (real) */ - strcpy (p1, "float"); - break; - - case btDouble: /* Double (real) */ - strcpy (p1, "double"); - break; - - /* Structures add 1-2 aux words: - 1st word is [ST_RFDESCAPE, offset] pointer to struct def; - 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ - - case btStruct: /* Structure (Record) */ - ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); - ecoff_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); - ecoff_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); - ecoff_emit_aggregate (abfd, p1, &rndx, - AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), - "enum"); - indx++; /* skip aux words */ - break; - - case btTypedef: /* defined via a typedef, isymRef points */ - strcpy (p1, "typedef"); - break; - - case btRange: /* subrange of int */ - strcpy (p1, "subrange"); - break; - - case btSet: /* pascal sets */ - strcpy (p1, "set"); - break; - - case btComplex: /* fortran complex */ - strcpy (p1, "complex"); - break; - - case btDComplex: /* fortran double complex */ - strcpy (p1, "double complex"); - break; - - case btIndirect: /* forward or unnamed typedef */ - strcpy (p1, "forward/unamed typedef"); - break; - - case btFixedDec: /* Fixed Decimal */ - strcpy (p1, "fixed decimal"); - break; - - case btFloatDec: /* Float Decimal */ - strcpy (p1, "float decimal"); - break; - - case btString: /* Varying Length Character String */ - strcpy (p1, "string"); - break; - - case btBit: /* Aligned Bit String */ - strcpy (p1, "bit"); - break; - - case btPicture: /* Picture */ - strcpy (p1, "picture"); - break; - - case btVoid: /* Void */ - strcpy (p1, "void"); - break; - - default: - sprintf (p1, "Unknown basic type %d", (int) basic_type); - break; - } - - p1 += strlen (buffer1); - - /* - * If this is a bitfield, get the bitsize. - */ - if (u.ti.fBitfield) - { - int bitsize; - - bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); - sprintf (p1, " : %d", bitsize); - p1 += strlen (buffer1); - } - - - /* - * Deal with any qualifiers. - */ - if (qualifiers[0].type != tqNil) - { - /* - * Snarf up any array bounds in the correct order. Arrays - * store 5 successive words in the aux. table: - * word 0 RNDXR to type of the bounds (ie, int) - * word 1 Current file descriptor index - * word 2 low bound - * word 3 high bound (or -1 if []) - * word 4 stride size in bits - */ - for (i = 0; i < 7; i++) - { - if (qualifiers[i].type == tqArray) - { - qualifiers[i].low_bound = - AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); - qualifiers[i].high_bound = - AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); - qualifiers[i].stride = - AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); - indx += 5; - } - } - - /* - * Now print out the qualifiers. - */ - for (i = 0; i < 6; i++) - { - switch (qualifiers[i].type) - { - case tqNil: - case tqMax: - break; - - case tqPtr: - strcpy (p2, "ptr to "); - p2 += sizeof ("ptr to ")-1; - break; - - case tqVol: - strcpy (p2, "volatile "); - p2 += sizeof ("volatile ")-1; - break; - - case tqFar: - strcpy (p2, "far "); - p2 += sizeof ("far ")-1; - break; - - case tqProc: - strcpy (p2, "func. ret. "); - p2 += sizeof ("func. ret. "); - break; - - case tqArray: - { - int first_array = i; - int j; - - /* Print array bounds reversed (ie, in the order the C - programmer writes them). C is such a fun language.... */ - - while (i < 5 && qualifiers[i+1].type == tqArray) - i++; - - for (j = i; j >= first_array; j--) - { - strcpy (p2, "array ["); - p2 += sizeof ("array [")-1; - if (qualifiers[j].low_bound != 0) - sprintf (p2, - "%ld:%ld {%ld bits}", - (long) qualifiers[j].low_bound, - (long) qualifiers[j].high_bound, - (long) qualifiers[j].stride); - - else if (qualifiers[j].high_bound != -1) - sprintf (p2, - "%ld {%ld bits}", - (long) (qualifiers[j].high_bound + 1), - (long) (qualifiers[j].stride)); - - else - sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); - - p2 += strlen (p2); - strcpy (p2, "] of "); - p2 += sizeof ("] of ")-1; - } - } - break; - } - } - } - - strcpy (p2, buffer1); - return buffer2; -} - -/* Return information about ECOFF symbol SYMBOL in RET. */ - -static void -ecoff_get_symbol_info (abfd, symbol, ret) - bfd *abfd; /* Ignored. */ - asymbol *symbol; - symbol_info *ret; -{ - bfd_symbol_info (symbol, ret); -} - -/* Print information about an ECOFF symbol. */ - -static void -ecoff_print_symbol (abfd, filep, symbol, how) - bfd *abfd; - PTR filep; - asymbol *symbol; - bfd_print_symbol_type how; -{ - FILE *file = (FILE *)filep; - - switch (how) - { - case bfd_print_symbol_name: - fprintf (file, "%s", symbol->name); - break; - case bfd_print_symbol_more: - if (ecoffsymbol (symbol)->local) - { - SYMR ecoff_sym; - - ecoff_swap_sym_in (abfd, ecoffsymbol (symbol)->native.lnative, - &ecoff_sym); - fprintf (file, "ecoff local %lx %x %x", - (unsigned long) ecoff_sym.value, - (unsigned) ecoff_sym.st, (unsigned) ecoff_sym.sc); - } - else - { - EXTR ecoff_ext; - - ecoff_swap_ext_in (abfd, ecoffsymbol (symbol)->native.enative, - &ecoff_ext); - fprintf (file, "ecoff extern %lx %x %x", - (unsigned long) ecoff_ext.asym.value, - (unsigned) ecoff_ext.asym.st, - (unsigned) ecoff_ext.asym.sc); - } - break; - case bfd_print_symbol_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", - (long) (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", - (long) (AUX_GET_ISYM (bigendian, - &aux_base[ecoff_ext.asym.index]) - + sym_base), - ecoff_type_to_string (abfd, aux_base, indx + 1, - bigendian)); - else - printf ("\n Local symbol: %d", - (indx - + sym_base - + ecoff_data (abfd)->symbolic_header.iextMax)); - break; - - default: - if (!MIPS_IS_STAB (&ecoff_ext.asym)) - printf ("\n Type: %s", - ecoff_type_to_string (abfd, aux_base, indx, - bigendian)); - break; - } - } - } - break; - } -} /* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in external form. They use a bit which indicates whether the symbol @@ -1697,11 +201,13 @@ ecoff_print_symbol (abfd, filep, symbol, how) /* Swap a reloc in. */ static void -ecoff_swap_reloc_in (abfd, ext, intern) +mips_ecoff_swap_reloc_in (abfd, ext_ptr, intern) bfd *abfd; - RELOC *ext; + 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) { @@ -1731,13 +237,12 @@ ecoff_swap_reloc_in (abfd, ext, intern) /* Swap a reloc out. */ -static unsigned int -ecoff_swap_reloc_out (abfd, src, dst) +static void +mips_ecoff_swap_reloc_out (abfd, intern, dst) bfd *abfd; - PTR src; + 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); @@ -1759,2467 +264,6 @@ ecoff_swap_reloc_out (abfd, src, dst) & RELOC_BITS3_TYPE_LITTLE) | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0)); } - - return RELSZ; -} - -/* ECOFF relocs are either against external symbols, or against - sections. If we are producing relocateable output, and the reloc - is against an external symbol, 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 -ecoff_generic_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; -{ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - return bfd_reloc_continue; -} - -/* 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. ECOFF requires that the REFLO - immediately follow the REFHI, so this ought to work. */ - -static bfd_byte *ecoff_refhi_addr; -static bfd_vma ecoff_refhi_addend; - -static bfd_reloc_status_type -ecoff_refhi_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; -{ - bfd_reloc_status_type ret; - 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 - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - /* Save the information, and let REFLO do the actual relocation. */ - ecoff_refhi_addr = (bfd_byte *) data + reloc_entry->address; - ecoff_refhi_addend = relocation; - - if (output_bfd != (bfd *) NULL) - reloc_entry->address += input_section->output_offset; - - return ret; -} - -/* 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 -ecoff_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 (ecoff_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, ecoff_refhi_addr); - vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) - & 0xffff); - val = ((insn & 0xffff) << 16) + vallo; - val += ecoff_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, ecoff_refhi_addr); - - ecoff_refhi_addr = (bfd_byte *) NULL; - } - - /* Now do the REFLO reloc in the usual way. */ - return ecoff_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd); -} - -/* Do a GPREL relocation. This is a 16 bit value which must become - the offset from the gp register. */ - -static bfd_reloc_status_type -ecoff_gprel_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; -{ - boolean relocateable; - bfd_vma relocation; - unsigned long val; - unsigned long insn; - - /* If we're relocating, and this 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 - { - relocateable = false; - output_bfd = symbol->section->output_section->owner; - } - - if (symbol->section == &bfd_und_section - && relocateable == false) - return bfd_reloc_undefined; - - /* We have to figure out the gp value, so that we can adjust the - symbol value correctly. We look up the symbol _gp in the output - BFD. If we can't find it, we're stuck. We cache it in the ECOFF - target data. 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)) - { - if (relocateable != false) - { - /* Make up a value. */ - ecoff_data (output_bfd)->gp = - symbol->section->output_section->vma + 0x4000; - } - else - { - unsigned int count; - asymbol **sym; - unsigned int i; - - count = bfd_get_symcount (output_bfd); - sym = bfd_get_outsymbols (output_bfd); - - /* We should do something more friendly here, but we don't - have a good reloc status to return. */ - if (sym == (asymbol **) NULL) - abort (); - - for (i = 0; i < count; i++, sym++) - { - register CONST char *name; - - name = bfd_asymbol_name (*sym); - if (*name == '_' && strcmp (name, "_gp") == 0) - { - ecoff_data (output_bfd)->gp = bfd_asymbol_value (*sym); - break; - } - } - - /* We should do something more friendly here, but we don't have - a good reloc status to return. */ - if (i >= count) - abort (); - } - } - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); - - /* Set val to the offset into the section or symbol. */ - val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; - if (val & 0x8000) - val -= 0x10000; - - /* 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; - - insn = (insn &~ 0xffff) | (val & 0xffff); - bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); - - if (relocateable != false) - reloc_entry->address += input_section->output_offset; - - /* Make sure it fit in 16 bits. */ - if (val >= 0x8000 && val < 0xffff8000) - return bfd_reloc_outofrange; - - return bfd_reloc_ok; -} - -/* Read in the relocs for a section. */ - -static boolean -ecoff_slurp_reloc_table (abfd, section, symbols) - bfd *abfd; - asection *section; - asymbol **symbols; -{ - RELOC *external_relocs; - arelent *internal_relocs; - arelent *rptr; - unsigned int i; - - if (section->relocation != (arelent *) NULL - || section->reloc_count == 0 - || (section->flags & SEC_CONSTRUCTOR) != 0) - return true; - - if (ecoff_slurp_symbol_table (abfd) == false) - return false; - - internal_relocs = (arelent *) bfd_alloc (abfd, - (sizeof (arelent) - * section->reloc_count)); - external_relocs = (RELOC *) bfd_alloc (abfd, RELSZ * section->reloc_count); - if (internal_relocs == (arelent *) NULL - || external_relocs == (RELOC *) NULL) - { - bfd_error = no_memory; - return false; - } - if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) - return false; - if (bfd_read (external_relocs, 1, RELSZ * section->reloc_count, abfd) - != RELSZ * section->reloc_count) - { - bfd_error = system_call_error; - return false; - } - - for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) - { - struct internal_reloc intern; - - ecoff_swap_reloc_in (abfd, external_relocs + i, &intern); - - if (intern.r_type > ECOFF_R_LITERAL) - abort (); - - if (intern.r_extern) - { - /* r_symndx is an index into the external symbols. */ - BFD_ASSERT (intern.r_symndx >= 0 - && (intern.r_symndx - < ecoff_data (abfd)->symbolic_header.iextMax)); - rptr->sym_ptr_ptr = symbols + intern.r_symndx; - rptr->addend = 0; - } - else - { - CONST char *sec_name; - asection *sec; - - /* r_symndx is a section key. */ - switch (intern.r_symndx) - { - case RELOC_SECTION_TEXT: sec_name = ".text"; break; - case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; - case RELOC_SECTION_DATA: sec_name = ".data"; break; - case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; - case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; - case RELOC_SECTION_BSS: sec_name = ".bss"; break; - case RELOC_SECTION_INIT: sec_name = ".init"; break; - case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; - case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; - default: abort (); - } - - sec = bfd_get_section_by_name (abfd, sec_name); - if (sec == (asection *) NULL) - abort (); - rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; - - rptr->addend = - bfd_get_section_vma (abfd, sec); - if (intern.r_type == ECOFF_R_GPREL - || intern.r_type == ECOFF_R_LITERAL) - rptr->addend += ecoff_data (abfd)->gp; - } - - rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); - rptr->howto = &ecoff_howto_table[intern.r_type]; - - /* If the type is ECOFF_R_IGNORE, make sure this is a reference - to the absolute section so that the reloc is ignored. */ - if (intern.r_type == ECOFF_R_IGNORE) - rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; - } - - bfd_release (abfd, external_relocs); - - section->relocation = internal_relocs; - - return true; -} - -/* Get a canonical list of relocs. */ - -static unsigned int -ecoff_canonicalize_reloc (abfd, section, relptr, symbols) - bfd *abfd; - asection *section; - arelent **relptr; - asymbol **symbols; -{ - unsigned int count; - - if (section->flags & SEC_CONSTRUCTOR) - { - arelent_chain *chain; - - /* This section has relocs made up by us, not the file, so take - them out of their chain and place them into the data area - provided. */ - for (count = 0, chain = section->constructor_chain; - count < section->reloc_count; - count++, chain = chain->next) - *relptr++ = &chain->relent; - } - else - { - arelent *tblptr; - - if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) - return 0; - - tblptr = section->relocation; - if (tblptr == (arelent *) NULL) - return 0; - - for (count = 0; count < section->reloc_count; count++) - *relptr++ = tblptr++; - } - - *relptr = (arelent *) NULL; - - return section->reloc_count; -} - -/* Get the howto structure for a generic reloc type. */ - -static CONST struct reloc_howto_struct * -ecoff_bfd_reloc_type_lookup (abfd, code) - bfd *abfd; - bfd_reloc_code_real_type code; -{ - int ecoff_type; - - switch (code) - { - case BFD_RELOC_16: - ecoff_type = ECOFF_R_REFHALF; - break; - case BFD_RELOC_32: - ecoff_type = ECOFF_R_REFWORD; - break; - case BFD_RELOC_MIPS_JMP: - ecoff_type = ECOFF_R_JMPADDR; - break; - case BFD_RELOC_HI16_S: - ecoff_type = ECOFF_R_REFHI; - break; - case BFD_RELOC_LO16: - ecoff_type = ECOFF_R_REFLO; - break; - case BFD_RELOC_MIPS_GPREL: - ecoff_type = ECOFF_R_GPREL; - break; - default: - return (CONST struct reloc_howto_struct *) NULL; - } - - return &ecoff_howto_table[ecoff_type]; -} - -/* Provided a BFD, a section and an offset into the section, calculate - and return the name of the source file and the line nearest to the - wanted location. */ - -static boolean -ecoff_find_nearest_line (abfd, - section, - ignore_symbols, - offset, - filename_ptr, - functionname_ptr, - retline_ptr) - bfd *abfd; - asection *section; - asymbol **ignore_symbols; - bfd_vma offset; - CONST char **filename_ptr; - CONST char **functionname_ptr; - unsigned int *retline_ptr; -{ - FDR *fdr_ptr; - FDR *fdr_start; - FDR *fdr_end; - FDR *fdr_hold; - struct pdr_ext *pdr_ptr; - struct pdr_ext *pdr_end; - PDR pdr; - unsigned char *line_ptr; - unsigned char *line_end; - int lineno; - - /* If we're not in the .text section, we don't have any line - numbers. */ - if (strcmp (section->name, _TEXT) != 0 - || offset < ecoff_data (abfd)->text_start - || offset >= ecoff_data (abfd)->text_end) - return false; - - /* Make sure we have the FDR's. */ - if (ecoff_slurp_symbolic_info (abfd) == false - || bfd_get_symcount (abfd) == 0) - return false; - - /* Each file descriptor (FDR) has a memory address. Here we track - down which FDR we want. The FDR's are stored in increasing - memory order. If speed is ever important, this can become a - binary search. We must ignore FDR's with no PDR entries; they - will have the adr of the FDR before or after them. */ - fdr_start = ecoff_data (abfd)->fdr; - fdr_end = fdr_start + ecoff_data (abfd)->symbolic_header.ifdMax; - fdr_hold = (FDR *) NULL; - for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) - { - if (fdr_ptr->cpd == 0) - continue; - if (offset < fdr_ptr->adr) - break; - 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); - - /* The address of the first PDR is an offset which applies to the - addresses of all the PDR's. */ - offset += pdr.adr; - - for (pdr_ptr++; pdr_ptr < pdr_end; pdr_ptr++) - { - ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); - if (offset < pdr.adr) - break; - } - - /* Now we can look for the actual line number. The line numbers are - stored in a very funky format, which I won't try to describe. - Note that right here pdr_ptr and pdr hold the PDR *after* the one - we want; we need this to compute line_end. */ - line_end = ecoff_data (abfd)->line; - if (pdr_ptr == pdr_end) - line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; - else - line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; - - /* Now change pdr and pdr_ptr to the one we want. */ - pdr_ptr--; - ecoff_swap_pdr_in (abfd, pdr_ptr, &pdr); - - offset -= pdr.adr; - lineno = pdr.lnLow; - line_ptr = (ecoff_data (abfd)->line - + fdr_ptr->cbLineOffset - + pdr.cbLineOffset); - while (line_ptr < line_end) - { - int delta; - int count; - - delta = *line_ptr >> 4; - if (delta >= 0x8) - delta -= 0x10; - count = (*line_ptr & 0xf) + 1; - ++line_ptr; - if (delta == -8) - { - delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); - if (delta >= 0x8000) - delta -= 0x10000; - line_ptr += 2; - } - lineno += delta; - if (offset < count * 4) - break; - offset -= count * 4; - } - - /* If fdr_ptr->rss is -1, then this file does not have full symbols, - at least according to gdb/mipsread.c. */ - if (fdr_ptr->rss == -1) - { - *filename_ptr = NULL; - if (pdr.isym == -1) - *functionname_ptr = NULL; - else - { - EXTR proc_ext; - - ecoff_swap_ext_in (abfd, - (ecoff_data (abfd)->external_ext - + pdr.isym), - &proc_ext); - *functionname_ptr = ecoff_data (abfd)->ssext + proc_ext.asym.iss; - } - } - else - { - SYMR proc_sym; - - *filename_ptr = ecoff_data (abfd)->ss + fdr_ptr->issBase + fdr_ptr->rss; - ecoff_swap_sym_in (abfd, - (ecoff_data (abfd)->external_sym - + fdr_ptr->isymBase - + pdr.isym), - &proc_sym); - *functionname_ptr = (ecoff_data (abfd)->ss - + fdr_ptr->issBase - + proc_sym.iss); - } - if (lineno == ilineNil) - lineno = 0; - *retline_ptr = lineno; - return true; -} - -/* 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 -ecoff_clear_output_flags (abfd) - bfd *abfd; -{ - register asection *o; - register bfd_seclet_type *p; - - for (o = abfd->sections; o != (asection *) NULL; o = o->next) - for (p = o->seclets_head; - p != (bfd_seclet_type *) NULL; - p = p->next) - if (p->type == bfd_indirect_seclet) - p->u.indirect.section->owner->output_has_begun = false; -} - -/* Handle an indirect seclet on the first pass. Set the contents of - the output section, and accumulate the debugging information if - any. */ - -static boolean -ecoff_rel (output_bfd, seclet, output_section, data, relocateable) - bfd *output_bfd; - bfd_seclet_type *seclet; - asection *output_section; - PTR data; - boolean relocateable; -{ - 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. */ - - if (input_bfd->output_has_begun) - return true; - input_bfd->output_has_begun = true; - - output_symhdr = &ecoff_data (output_bfd)->symbolic_header; - - if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) - { - asymbol **symbols; - asymbol **sym_ptr; - asymbol **sym_end; - - /* We just accumulate local symbols from a non-ECOFF BFD. The - external symbols are handled separately. */ - - symbols = (asymbol **) bfd_alloc (output_bfd, - get_symtab_upper_bound (input_bfd)); - if (symbols == (asymbol **) NULL) - { - bfd_error = no_memory; - return false; - } - sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); - - for (sym_ptr = symbols; sym_ptr < sym_end; sym_ptr++) - { - size_t len; - - len = strlen ((*sym_ptr)->name); - if (((*sym_ptr)->flags & BSF_EXPORT) == 0) - { - ++output_symhdr->isymMax; - output_symhdr->issMax += len + 1; - } - } - - bfd_release (output_bfd, (PTR) symbols); - - ++output_symhdr->ifdMax; - - return true; - } - - /* We simply add in the information from another ECOFF BFD. First - we make sure we have the symbolic information. */ - if (ecoff_slurp_symbol_table (input_bfd) == false) - return false; - if (bfd_get_symcount (input_bfd) == 0) - return true; - - input_symhdr = &ecoff_data (input_bfd)->symbolic_header; - - /* Figure out how much information we are going to be putting in. - The external symbols are handled separately. */ - output_symhdr->ilineMax += input_symhdr->ilineMax; - output_symhdr->cbLine += input_symhdr->cbLine; - output_symhdr->idnMax += input_symhdr->idnMax; - output_symhdr->ipdMax += input_symhdr->ipdMax; - output_symhdr->isymMax += input_symhdr->isymMax; - output_symhdr->ioptMax += input_symhdr->ioptMax; - output_symhdr->iauxMax += input_symhdr->iauxMax; - output_symhdr->issMax += input_symhdr->issMax; - output_symhdr->ifdMax += input_symhdr->ifdMax; - - /* The RFD's are special, since we create them if needed. */ - if (input_symhdr->crfd > 0) - output_symhdr->crfd += input_symhdr->crfd; - else - output_symhdr->crfd += input_symhdr->ifdMax; - - return true; -} - -/* Handle an arbitrary seclet on the first pass. */ - -static boolean -ecoff_dump_seclet (abfd, seclet, section, data, relocateable) - bfd *abfd; - bfd_seclet_type *seclet; - asection *section; - PTR data; - boolean relocateable; -{ - switch (seclet->type) - { - case bfd_indirect_seclet: - /* The contents of this section come from another one somewhere - else. */ - return ecoff_rel (abfd, seclet, section, data, relocateable); - - case bfd_fill_seclet: - /* Fill in the section with fill.value. This is used to pad out - sections, but we must avoid padding the .bss section. */ - if ((section->flags & SEC_HAS_CONTENTS) == 0) - { - if (seclet->u.fill.value != 0) - abort (); - } - else - { - char *d = (char *) bfd_alloc (abfd, seclet->size); - unsigned int i; - boolean ret; - - for (i = 0; i < seclet->size; i+=2) - d[i] = seclet->u.fill.value >> 8; - for (i = 1; i < seclet->size; i+=2) - d[i] = seclet->u.fill.value; - ret = bfd_set_section_contents (abfd, section, d, seclet->offset, - seclet->size); - bfd_release (abfd, (PTR) d); - return ret; - } - break; - - default: - abort(); - } - - return true; -} - -/* Add a string to the debugging information we are accumulating for a - file. Return the offset from the fdr string base or from the - external string base. */ - -static long -ecoff_add_string (output_bfd, fdr, string, external) - bfd *output_bfd; - FDR *fdr; - CONST char *string; - boolean external; -{ - HDRR *symhdr; - size_t len; - long ret; - - symhdr = &ecoff_data (output_bfd)->symbolic_header; - len = strlen (string); - if (external) - { - strcpy (ecoff_data (output_bfd)->ssext + symhdr->issExtMax, string); - ret = symhdr->issExtMax; - symhdr->issExtMax += len + 1; - } - else - { - strcpy (ecoff_data (output_bfd)->ss + symhdr->issMax, string); - ret = fdr->cbSs; - symhdr->issMax += len + 1; - fdr->cbSs += len + 1; - } - return ret; -} - -/* Accumulate the debugging information from an input section. */ - -static boolean -ecoff_get_debug (output_bfd, seclet, section, relocateable) - bfd *output_bfd; - bfd_seclet_type *seclet; - asection *section; - boolean relocateable; -{ - bfd *input_bfd; - HDRR *output_symhdr; - HDRR *input_symhdr; - ecoff_data_type *output_ecoff; - ecoff_data_type *input_ecoff; - unsigned int count; - struct sym_ext *sym_out; - ecoff_symbol_type *esym_ptr; - ecoff_symbol_type *esym_end; - FDR *fdr_ptr; - FDR *fdr_end; - struct fdr_ext *fdr_out; - - input_bfd = seclet->u.indirect.section->owner; - - /* Don't get the information more than once. */ - if (input_bfd->output_has_begun) - return true; - input_bfd->output_has_begun = true; - - output_ecoff = ecoff_data (output_bfd); - output_symhdr = &output_ecoff->symbolic_header; - - if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) - { - FDR fdr; - asymbol **symbols; - asymbol **sym_ptr; - asymbol **sym_end; - - /* This is not an ECOFF BFD. Just gather the symbols. */ - - memset (&fdr, 0, sizeof fdr); - - fdr.adr = bfd_get_section_vma (output_bfd, section) + seclet->offset; - fdr.issBase = output_symhdr->issMax; - fdr.cbSs = 0; - fdr.rss = ecoff_add_string (output_bfd, - &fdr, - bfd_get_filename (input_bfd), - false); - fdr.isymBase = output_symhdr->isymMax; - - /* Get the local symbols from the input BFD. */ - symbols = (asymbol **) bfd_alloc (output_bfd, - get_symtab_upper_bound (input_bfd)); - if (symbols == (asymbol **) NULL) - { - bfd_error = no_memory; - return false; - } - sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); - - /* Handle the local symbols. Any external symbols are handled - separately. */ - fdr.csym = 0; - for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) - { - SYMR internal_sym; - - if (((*sym_ptr)->flags & BSF_EXPORT) != 0) - continue; - memset (&internal_sym, 0, sizeof internal_sym); - internal_sym.iss = ecoff_add_string (output_bfd, - &fdr, - (*sym_ptr)->name, - false); - - if (bfd_is_com_section ((*sym_ptr)->section) - || (*sym_ptr)->section == &bfd_und_section) - internal_sym.value = (*sym_ptr)->value; - else - internal_sym.value = ((*sym_ptr)->value - + (*sym_ptr)->section->output_offset - + (*sym_ptr)->section->output_section->vma); - internal_sym.st = stNil; - internal_sym.sc = scUndefined; - internal_sym.index = indexNil; - ecoff_swap_sym_out (output_bfd, &internal_sym, - (output_ecoff->external_sym - + output_symhdr->isymMax)); - ++fdr.csym; - ++output_symhdr->isymMax; - } - - bfd_release (output_bfd, (PTR) symbols); - - /* Leave everything else in the FDR zeroed out. This will cause - the lang field to be langC. The fBigendian field will - indicate little endian format, but it doesn't matter because - it only applies to aux fields and there are none. */ - - ecoff_swap_fdr_out (output_bfd, &fdr, - (output_ecoff->external_fdr - + output_symhdr->ifdMax)); - ++output_symhdr->ifdMax; - return true; - } - - /* This is an ECOFF BFD. We want to grab the information from - input_bfd and attach it to output_bfd. */ - count = bfd_get_symcount (input_bfd); - if (count == 0) - return true; - input_ecoff = ecoff_data (input_bfd); - input_symhdr = &input_ecoff->symbolic_header; - - /* I think that it is more efficient to simply copy the debugging - information from the input BFD to the output BFD. Because ECOFF - uses relative pointers for most of the debugging information, - only a little of it has to be changed at all. */ - - /* Swap in the local symbols, adjust their values, and swap them out - again. The external symbols are handled separately. */ - sym_out = output_ecoff->external_sym + output_symhdr->isymMax; - - esym_ptr = ecoff_data (input_bfd)->canonical_symbols; - esym_end = esym_ptr + count; - for (; esym_ptr < esym_end; esym_ptr++) - { - if (esym_ptr->local) - { - SYMR sym; - - ecoff_swap_sym_in (input_bfd, esym_ptr->native.lnative, &sym); - - /* If we're producing an executable, move common symbols - into bss. */ - if (relocateable == false) - { - if (sym.sc == scCommon) - sym.sc = scBss; - else if (sym.sc == scSCommon) - sym.sc = scSBss; - } - - if (! bfd_is_com_section (esym_ptr->symbol.section) - && (esym_ptr->symbol.flags & BSF_DEBUGGING) == 0 - && esym_ptr->symbol.section != &bfd_und_section) - sym.value = (esym_ptr->symbol.value - + esym_ptr->symbol.section->output_offset - + esym_ptr->symbol.section->output_section->vma); - ecoff_swap_sym_out (output_bfd, &sym, sym_out); - ++sym_out; - } - } - - /* That should have accounted for all the local symbols in - input_bfd. */ - BFD_ASSERT ((sym_out - output_ecoff->external_sym) - output_symhdr->isymMax - == input_symhdr->isymMax); - - /* Copy the information that does not need swapping. */ - memcpy (output_ecoff->line + output_symhdr->cbLine, - input_ecoff->line, - input_symhdr->cbLine * sizeof (unsigned char)); - memcpy (output_ecoff->external_aux + output_symhdr->iauxMax, - input_ecoff->external_aux, - input_symhdr->iauxMax * sizeof (union aux_ext)); - memcpy (output_ecoff->ss + output_symhdr->issMax, - input_ecoff->ss, - input_symhdr->issMax * sizeof (char)); - - /* Some of the information may need to be swapped. */ - if (output_bfd->xvec->header_byteorder_big_p - == input_bfd->xvec->header_byteorder_big_p) - { - /* The two BFD's have the same endianness, so memcpy will - suffice. */ - memcpy (output_ecoff->external_dnr + output_symhdr->idnMax, - input_ecoff->external_dnr, - input_symhdr->idnMax * sizeof (struct dnr_ext)); - memcpy (output_ecoff->external_pdr + output_symhdr->ipdMax, - input_ecoff->external_pdr, - input_symhdr->ipdMax * sizeof (struct pdr_ext)); - memcpy (output_ecoff->external_opt + output_symhdr->ioptMax, - input_ecoff->external_opt, - input_symhdr->ioptMax * sizeof (struct opt_ext)); - } - else - { - struct dnr_ext *dnr_in; - struct dnr_ext *dnr_end; - struct dnr_ext *dnr_out; - struct pdr_ext *pdr_in; - struct pdr_ext *pdr_end; - struct pdr_ext *pdr_out; - struct opt_ext *opt_in; - struct opt_ext *opt_end; - struct opt_ext *opt_out; - - /* The two BFD's have different endianness, so we must swap - everything in and out. This code would always work, but it - would be slow in the normal case. */ - dnr_in = input_ecoff->external_dnr; - dnr_end = dnr_in + input_symhdr->idnMax; - dnr_out = output_ecoff->external_dnr + output_symhdr->idnMax; - for (; dnr_in < dnr_end; dnr_in++, dnr_out++) - { - DNR dnr; - - ecoff_swap_dnr_in (input_bfd, dnr_in, &dnr); - ecoff_swap_dnr_out (output_bfd, &dnr, dnr_out); - } - pdr_in = input_ecoff->external_pdr; - pdr_end = pdr_in + input_symhdr->ipdMax; - pdr_out = output_ecoff->external_pdr + output_symhdr->ipdMax; - for (; pdr_in < pdr_end; pdr_in++, pdr_out++) - { - PDR pdr; - - ecoff_swap_pdr_in (input_bfd, pdr_in, &pdr); - ecoff_swap_pdr_out (output_bfd, &pdr, pdr_out); - } - opt_in = input_ecoff->external_opt; - opt_end = opt_in + input_symhdr->ioptMax; - opt_out = output_ecoff->external_opt + output_symhdr->ioptMax; - for (; opt_in < opt_end; opt_in++, opt_out++) - { - OPTR opt; - - ecoff_swap_opt_in (input_bfd, opt_in, &opt); - ecoff_swap_opt_out (output_bfd, &opt, opt_out); - } - } - - /* Set ifdbase so that the external symbols know how to adjust their - ifd values. */ - input_ecoff->ifdbase = output_symhdr->ifdMax; - - fdr_ptr = input_ecoff->fdr; - fdr_end = fdr_ptr + input_symhdr->ifdMax; - fdr_out = output_ecoff->external_fdr + output_symhdr->ifdMax; - for (; fdr_ptr < fdr_end; fdr_ptr++, fdr_out++) - { - FDR fdr; - unsigned long pdr_off; - - fdr = *fdr_ptr; - - /* The memory address for this fdr is the address for the seclet - plus the offset to this fdr within input_bfd. For some - reason the offset of the first procedure pointer is also - added in. */ - if (fdr.cpd == 0) - pdr_off = 0; - else - { - PDR pdr; - - ecoff_swap_pdr_in (input_bfd, - input_ecoff->external_pdr + fdr.ipdFirst, - &pdr); - pdr_off = pdr.adr; - } - fdr.adr = (bfd_get_section_vma (output_bfd, section) - + seclet->offset - + (fdr_ptr->adr - input_ecoff->fdr->adr) - + pdr_off); - - fdr.issBase += output_symhdr->issMax; - fdr.isymBase += output_symhdr->isymMax; - fdr.ilineBase += output_symhdr->ilineMax; - fdr.ioptBase += output_symhdr->ioptMax; - fdr.ipdFirst += output_symhdr->ipdMax; - fdr.iauxBase += output_symhdr->iauxMax; - fdr.rfdBase += output_symhdr->crfd; - - /* If there are no RFD's, we are going to add some. We don't - want to adjust irfd for this, so that all the FDR's can share - the RFD's. */ - if (input_symhdr->crfd == 0) - fdr.crfd = input_symhdr->ifdMax; - - if (fdr.cbLine != 0) - fdr.cbLineOffset += output_symhdr->cbLine; - - ecoff_swap_fdr_out (output_bfd, &fdr, fdr_out); - } - - if (input_symhdr->crfd > 0) - { - struct rfd_ext *rfd_in; - struct rfd_ext *rfd_end; - struct rfd_ext *rfd_out; - - /* Swap and adjust the RFD's. RFD's are only created by the - linker, so this will only be necessary if one of the input - files is the result of a partial link. Presumably all - necessary RFD's are present. */ - rfd_in = input_ecoff->external_rfd; - rfd_end = rfd_in + input_symhdr->crfd; - rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; - for (; rfd_in < rfd_end; rfd_in++, rfd_out++) - { - RFDT rfd; - - ecoff_swap_rfd_in (input_bfd, rfd_in, &rfd); - rfd += output_symhdr->ifdMax; - ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); - } - output_symhdr->crfd += input_symhdr->crfd; - } - else - { - struct rfd_ext *rfd_out; - struct rfd_ext *rfd_end; - RFDT rfd; - - /* Create RFD's. Some of the debugging information includes - relative file indices. These indices are taken as indices to - the RFD table if there is one, or to the global table if - there is not. If we did not create RFD's, we would have to - parse and adjust all the debugging information which contains - file indices. */ - rfd = output_symhdr->ifdMax; - rfd_out = output_ecoff->external_rfd + output_symhdr->crfd; - rfd_end = rfd_out + input_symhdr->ifdMax; - for (; rfd_out < rfd_end; rfd_out++, rfd++) - ecoff_swap_rfd_out (output_bfd, &rfd, rfd_out); - output_symhdr->crfd += input_symhdr->ifdMax; - } - - /* Combine the register masks. */ - { - int i; - - output_ecoff->gprmask |= input_ecoff->gprmask; - for (i = 0; i < 4; i++) - output_ecoff->cprmask[i] |= input_ecoff->cprmask[i]; - } - - /* Update the counts. */ - output_symhdr->ilineMax += input_symhdr->ilineMax; - output_symhdr->cbLine += input_symhdr->cbLine; - output_symhdr->idnMax += input_symhdr->idnMax; - output_symhdr->ipdMax += input_symhdr->ipdMax; - output_symhdr->isymMax += input_symhdr->isymMax; - output_symhdr->ioptMax += input_symhdr->ioptMax; - output_symhdr->iauxMax += input_symhdr->iauxMax; - output_symhdr->issMax += input_symhdr->issMax; - output_symhdr->ifdMax += input_symhdr->ifdMax; - - return true; -} - -/* This is the actual link routine. It makes two passes over all the - seclets. */ - -static boolean -ecoff_bfd_seclet_link (abfd, data, relocateable) - bfd *abfd; - PTR data; - boolean relocateable; -{ - HDRR *symhdr; - int ipass; - register asection *o; - register bfd_seclet_type *p; - asymbol **sym_ptr_ptr; - bfd_size_type size; - char *raw; - - /* We accumulate the debugging information counts in the symbolic - header. */ - symhdr = &ecoff_data (abfd)->symbolic_header; - symhdr->magic = magicSym; - /* FIXME: What should the version stamp be? */ - symhdr->vstamp = 0; - symhdr->ilineMax = 0; - symhdr->cbLine = 0; - symhdr->idnMax = 0; - symhdr->ipdMax = 0; - symhdr->isymMax = 0; - symhdr->ioptMax = 0; - symhdr->iauxMax = 0; - symhdr->issMax = 0; - symhdr->issExtMax = 0; - symhdr->ifdMax = 0; - symhdr->crfd = 0; - symhdr->iextMax = 0; - - /* We need to copy over the debugging symbols from each input BFD. - When we do this copying, we have to adjust the text address in - the FDR structures, so we have to know the text address used for - the input BFD. Since we only want to copy the symbols once per - input BFD, but we are going to look at each input BFD multiple - times (once for each section it provides), we arrange to always - look at the text section first. That means that when we copy the - debugging information, we always know the text address. So we - actually do each pass in two sub passes; first the text sections, - then the non-text sections. We use the output_has_begun flag to - determine whether we have copied over the debugging information - yet. */ - - /* Do the first pass: set the output section contents and count the - debugging information. */ - ecoff_clear_output_flags (abfd); - for (ipass = 0; ipass < 2; ipass++) - { - for (o = abfd->sections; o != (asection *) NULL; o = o->next) - { - /* For SEC_CODE sections, (flags & SEC_CODE) == 0 is false, - so they are done on pass 0. For other sections the - expression is true, so they are done on pass 1. */ - if (((o->flags & SEC_CODE) == 0) != ipass) - continue; - - for (p = o->seclets_head; - p != (bfd_seclet_type *) NULL; - p = p->next) - { - if (ecoff_dump_seclet (abfd, p, o, data, relocateable) - == false) - return false; - } - } - } - - /* We handle the external symbols differently. We use the ones - attached to the output_bfd. The linker will have already - determined which symbols are to be attached. Here we just - determine how much space we will need for them. */ - sym_ptr_ptr = bfd_get_outsymbols (abfd); - if (sym_ptr_ptr != NULL) - { - asymbol **sym_end; - - sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); - for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) - { - if (((*sym_ptr_ptr)->flags & BSF_DEBUGGING) == 0 - && ((*sym_ptr_ptr)->flags & BSF_LOCAL) == 0) - { - ++symhdr->iextMax; - symhdr->issExtMax += strlen ((*sym_ptr_ptr)->name) + 1; - } - } - } - - /* Adjust the counts so that structures are longword aligned. */ - symhdr->cbLine = (symhdr->cbLine + 3) &~ 3; - symhdr->issMax = (symhdr->issMax + 3) &~ 3; - symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3; - - /* Now the counts in symhdr are the correct size for the debugging - information. We allocate the right amount of space, and reset - the counts so that the second pass can use them as indices. It - would be possible to output the debugging information directly to - the file in pass 2, rather than to build it in memory and then - write it out. Outputting to the file would require a lot of - seeks and small writes, though, and I think this approach is - faster. */ - size = (symhdr->cbLine * sizeof (unsigned char) - + symhdr->idnMax * sizeof (struct dnr_ext) - + symhdr->ipdMax * sizeof (struct pdr_ext) - + symhdr->isymMax * sizeof (struct sym_ext) - + symhdr->ioptMax * sizeof (struct opt_ext) - + symhdr->iauxMax * sizeof (union aux_ext) - + symhdr->issMax * sizeof (char) - + symhdr->issExtMax * sizeof (char) - + symhdr->ifdMax * sizeof (struct fdr_ext) - + symhdr->crfd * sizeof (struct rfd_ext) - + symhdr->iextMax * sizeof (struct ext_ext)); - raw = (char *) bfd_alloc (abfd, size); - if (raw == (char *) NULL) - { - bfd_error = no_memory; - return false; - } - ecoff_data (abfd)->raw_size = size; - ecoff_data (abfd)->raw_syments = (PTR) raw; - - /* Initialize the raw pointers. */ -#define SET(field, count, type) \ - ecoff_data (abfd)->field = (type *) raw; \ - raw += symhdr->count * sizeof (type) - - SET (line, cbLine, unsigned char); - SET (external_dnr, idnMax, struct dnr_ext); - SET (external_pdr, ipdMax, struct pdr_ext); - SET (external_sym, isymMax, struct sym_ext); - SET (external_opt, ioptMax, struct opt_ext); - SET (external_aux, iauxMax, union aux_ext); - SET (ss, issMax, char); - SET (ssext, issExtMax, char); - SET (external_fdr, ifdMax, struct fdr_ext); - SET (external_rfd, crfd, struct rfd_ext); - SET (external_ext, iextMax, struct ext_ext); -#undef SET - - /* Reset the counts so the second pass can use them to know how far - it has gotten. */ - symhdr->ilineMax = 0; - symhdr->cbLine = 0; - symhdr->idnMax = 0; - symhdr->ipdMax = 0; - symhdr->isymMax = 0; - symhdr->ioptMax = 0; - symhdr->iauxMax = 0; - symhdr->issMax = 0; - symhdr->issExtMax = 0; - symhdr->ifdMax = 0; - symhdr->crfd = 0; - symhdr->iextMax = 0; - - /* Do the second pass: accumulate the debugging information. */ - ecoff_clear_output_flags (abfd); - for (ipass = 0; ipass < 2; ipass++) - { - for (o = abfd->sections; o != (asection *) NULL; o = o->next) - { - if (((o->flags & SEC_CODE) == 0) != ipass) - continue; - for (p = o->seclets_head; - p != (bfd_seclet_type *) NULL; - p = p->next) - { - if (p->type == bfd_indirect_seclet) - { - if (ecoff_get_debug (abfd, p, o, relocateable) == false) - return false; - } - } - } - } - - /* Put in the external symbols. */ - sym_ptr_ptr = bfd_get_outsymbols (abfd); - if (sym_ptr_ptr != NULL) - { - char *ssext; - struct ext_ext *external_ext; - - ssext = ecoff_data (abfd)->ssext; - external_ext = ecoff_data (abfd)->external_ext; - for (; *sym_ptr_ptr != NULL; sym_ptr_ptr++) - { - asymbol *sym_ptr; - EXTR esym; - - sym_ptr = *sym_ptr_ptr; - - if ((sym_ptr->flags & BSF_DEBUGGING) != 0 - || (sym_ptr->flags & BSF_LOCAL) != 0) - continue; - - /* The enative pointer can be NULL for a symbol created by - the linker via ecoff_make_empty_symbol. */ - if (bfd_asymbol_flavour (sym_ptr) != bfd_target_ecoff_flavour - || (((ecoff_symbol_type *) sym_ptr)->native.enative - == (struct ext_ext *) NULL)) - { - esym.jmptbl = 0; - esym.cobol_main = 0; - esym.weakext = 0; - esym.reserved = 0; - esym.ifd = ifdNil; - /* FIXME: we can do better than this for st and sc. */ - esym.asym.st = stGlobal; - esym.asym.sc = scAbs; - esym.asym.reserved = 0; - esym.asym.index = indexNil; - } - else - { - ecoff_symbol_type *ecoff_sym_ptr; - - ecoff_sym_ptr = (ecoff_symbol_type *) sym_ptr; - if (ecoff_sym_ptr->local) - abort (); - ecoff_swap_ext_in (abfd, ecoff_sym_ptr->native.enative, &esym); - - /* If we're producing an executable, move common symbols - into bss. */ - if (relocateable == false) - { - if (esym.asym.sc == scCommon) - esym.asym.sc = scBss; - else if (esym.asym.sc == scSCommon) - esym.asym.sc = scSBss; - } - - /* Adjust the FDR index for the symbol by that used for - the input BFD. */ - esym.ifd += ecoff_data (bfd_asymbol_bfd (sym_ptr))->ifdbase; - } - - esym.asym.iss = symhdr->issExtMax; - - if (bfd_is_com_section (sym_ptr->section) - || sym_ptr->section == &bfd_und_section) - esym.asym.value = sym_ptr->value; - else - esym.asym.value = (sym_ptr->value - + sym_ptr->section->output_offset - + sym_ptr->section->output_section->vma); - - ecoff_swap_ext_out (abfd, &esym, external_ext + symhdr->iextMax); - - ecoff_set_sym_index (sym_ptr, symhdr->iextMax); - - ++symhdr->iextMax; - - strcpy (ssext + symhdr->issExtMax, sym_ptr->name); - symhdr->issExtMax += strlen (sym_ptr->name) + 1; - } - } - - /* Adjust the counts so that structures are longword aligned. */ - symhdr->cbLine = (symhdr->cbLine + 3) &~ 3; - symhdr->issMax = (symhdr->issMax + 3) &~ 3; - symhdr->issExtMax = (symhdr->issExtMax + 3) &~ 3; - - return true; -} - -/* 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 -ecoff_set_arch_mach (abfd, arch, machine) - bfd *abfd; - enum bfd_architecture arch; - unsigned long machine; -{ - bfd_default_set_arch_mach (abfd, arch, machine); - return arch == bfd_arch_mips; -} - -/* Get the size of the section headers. We do not output the .scommon - section which we created in ecoff_mkobject. */ - -static int -ecoff_sizeof_headers (abfd, reloc) - bfd *abfd; - boolean reloc; -{ - return FILHSZ + AOUTSZ + (abfd->section_count - 1) * SCNHSZ; -} - -/* Calculate the file position for each section, and set - reloc_filepos. */ - -static void -ecoff_compute_section_file_positions (abfd) - bfd *abfd; -{ - asection *current; - file_ptr sofar; - file_ptr old_sofar; - boolean first_data; - - if (bfd_get_start_address (abfd)) - abfd->flags |= EXEC_P; - - sofar = ecoff_sizeof_headers (abfd, false); - - first_data = true; - for (current = abfd->sections; - current != (asection *) NULL; - current = current->next) - { - /* Only deal with sections which have contents */ - if (! (current->flags & SEC_HAS_CONTENTS) - || strcmp (current->name, SCOMMON) == 0) - continue; - - /* On Ultrix, the data sections in an executable file must be - aligned to a page boundary within the file. This does not - affect the section size, though. FIXME: Does this work for - other platforms? */ - if ((abfd->flags & EXEC_P) != 0 - && (abfd->flags & D_PAGED) != 0 - && first_data != false - && (current->flags & SEC_CODE) == 0) - { - sofar = (sofar + ROUND_SIZE - 1) &~ (ROUND_SIZE - 1); - first_data = false; - } - - /* Align the sections in the file to the same boundary on - which they are aligned in virtual memory. */ - old_sofar = sofar; - sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); - - current->filepos = sofar; - - sofar += current->_raw_size; - - /* make sure that this section is of the right size too */ - old_sofar = sofar; - sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); - current->_raw_size += sofar - old_sofar; - } - - ecoff_data (abfd)->reloc_filepos = sofar; -} - -/* Set the contents of a section. */ - -static boolean -ecoff_set_section_contents (abfd, section, location, offset, count) - bfd *abfd; - asection *section; - PTR location; - file_ptr offset; - bfd_size_type count; -{ - if (abfd->output_has_begun == false) - ecoff_compute_section_file_positions (abfd); - - bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET); - - if (count != 0) - return (bfd_write (location, 1, count, abfd) == count) ? true : false; - - return true; -} - -/* Write out an ECOFF file. */ - -static boolean -ecoff_write_object_contents (abfd) - bfd *abfd; -{ - asection *current; - unsigned int count; - file_ptr scn_base; - file_ptr reloc_base; - file_ptr sym_base; - unsigned long reloc_size; - unsigned long text_size; - unsigned long text_start; - unsigned long data_size; - unsigned long data_start; - unsigned long bss_size; - struct internal_filehdr internal_f; - struct internal_aouthdr internal_a; - int i; - - bfd_error = system_call_error; - - if(abfd->output_has_begun == false) - ecoff_compute_section_file_positions(abfd); - - if (abfd->sections != (asection *) NULL) - scn_base = abfd->sections->filepos; - else - scn_base = 0; - reloc_base = ecoff_data (abfd)->reloc_filepos; - - count = 1; - reloc_size = 0; - for (current = abfd->sections; - current != (asection *)NULL; - current = current->next) - { - if (strcmp (current->name, SCOMMON) == 0) - continue; - current->target_index = count; - ++count; - if (current->reloc_count != 0) - { - bfd_size_type relsize; - - current->rel_filepos = reloc_base; - relsize = current->reloc_count * RELSZ; - reloc_size += relsize; - reloc_base += relsize; - } - else - current->rel_filepos = 0; - } - - sym_base = reloc_base + reloc_size; - - /* At least on Ultrix, the symbol table of an executable file must - be aligned to a page boundary. FIXME: Is this true on other - platforms? */ - if ((abfd->flags & EXEC_P) != 0 - && (abfd->flags & D_PAGED) != 0) - sym_base = (sym_base + ROUND_SIZE - 1) &~ (ROUND_SIZE - 1); - - ecoff_data (abfd)->sym_filepos = sym_base; - - if ((abfd->flags & D_PAGED) != 0) - text_size = ecoff_sizeof_headers (abfd, false); - else - 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) (FILHSZ + AOUTSZ), SEEK_SET) != 0) - return false; - for (current = abfd->sections; - current != (asection *) NULL; - current = current->next) - { - struct internal_scnhdr section; - bfd_vma vma; - - if (strcmp (current->name, SCOMMON) == 0) - { - BFD_ASSERT (bfd_get_section_size_before_reloc (current) == 0 - && current->reloc_count == 0); - continue; - } - - ++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 = ecoff_sec_to_styp_flags (current->name, - current->flags); - - { - SCNHDR buff; - - ecoff_swap_scnhdr_out (abfd, (PTR) §ion, (PTR) &buff); - if (bfd_write ((PTR) &buff, 1, SCNHSZ, abfd) != SCNHSZ) - return false; - } - - if ((section.s_flags & STYP_TEXT) != 0) - { - text_size += bfd_get_section_size_before_reloc (current); - if (text_start == 0 || text_start > vma) - text_start = vma; - } - else if ((section.s_flags & STYP_RDATA) != 0 - || (section.s_flags & STYP_DATA) != 0 - || (section.s_flags & STYP_LIT8) != 0 - || (section.s_flags & STYP_LIT4) != 0 - || (section.s_flags & STYP_SDATA) != 0) - { - data_size += bfd_get_section_size_before_reloc (current); - if (data_start == 0 || data_start > vma) - data_start = vma; - } - else if ((section.s_flags & STYP_BSS) != 0 - || (section.s_flags & STYP_SBSS) != 0) - bss_size += bfd_get_section_size_before_reloc (current); - } - - /* Set up the file header. */ - - if (abfd->xvec->header_byteorder_big_p != false) - internal_f.f_magic = MIPS_MAGIC_BIG; - else - internal_f.f_magic = MIPS_MAGIC_LITTLE; - - /* - We will NOT put a fucking timestamp in the header here. Every time you - put it back, I will come in and take it out again. I'm sorry. This - field does not belong here. We fill it with a 0 so it compares the - same but is not a reasonable time. -- gnu@cygnus.com - */ - internal_f.f_timdat = 0; - - if (bfd_get_symcount (abfd) != 0) - { - /* The ECOFF f_nsyms field is not actually the number of - symbols, it's the size of symbolic information header. */ - internal_f.f_nsyms = sizeof (struct hdr_ext); - internal_f.f_symptr = sym_base; - } - else - { - internal_f.f_nsyms = 0; - internal_f.f_symptr = 0; - } - - internal_f.f_opthdr = AOUTSZ; - - internal_f.f_flags = F_LNNO; - if (reloc_size == 0) - internal_f.f_flags |= F_RELFLG; - if (bfd_get_symcount (abfd) == 0) - internal_f.f_flags |= F_LSYMS; - if (abfd->flags & EXEC_P) - internal_f.f_flags |= F_EXEC; - - if (! abfd->xvec->byteorder_big_p) - internal_f.f_flags |= F_AR32WR; - else - internal_f.f_flags |= F_AR32W; - - /* Set up the ``optional'' header. */ - if ((abfd->flags & D_PAGED) != 0) - internal_a.magic = MIPS_AOUT_ZMAGIC; - else - internal_a.magic = MIPS_AOUT_OMAGIC; - - /* FIXME: This is what Ultrix puts in, and it makes the Ultrix - linker happy. But, is it right? */ - internal_a.vstamp = 0x20a; - - /* At least on Ultrix, these have to be rounded to page boundaries. - FIXME: Is this true on other platforms? */ - if ((abfd->flags & D_PAGED) != 0) - { - internal_a.tsize = (text_size + ROUND_SIZE - 1) &~ (ROUND_SIZE - 1); - internal_a.text_start = text_start &~ (ROUND_SIZE - 1); - internal_a.dsize = (data_size + ROUND_SIZE - 1) &~ (ROUND_SIZE - 1); - internal_a.data_start = data_start &~ (ROUND_SIZE - 1); - } - else - { - internal_a.tsize = text_size; - internal_a.text_start = text_start; - internal_a.dsize = data_size; - internal_a.data_start = data_start; - } - - /* On Ultrix, the initial portions of the .sbss and .bss segments - are at the end of the data section. The bsize field in the - optional header records how many bss bytes are required beyond - those in the data section. The value is not rounded to a page - boundary. */ - if (bss_size < internal_a.dsize - data_size) - bss_size = 0; - else - bss_size -= internal_a.dsize - data_size; - internal_a.bsize = bss_size; - internal_a.bss_start = internal_a.data_start + internal_a.dsize; - - internal_a.entry = bfd_get_start_address (abfd); - - internal_a.gp_value = ecoff_data (abfd)->gp; - - internal_a.gprmask = ecoff_data (abfd)->gprmask; - for (i = 0; i < 4; i++) - internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; - - /* Write out the file header and the optional header. */ - - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) - return false; - - { - FILHDR buff; - ecoff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) &buff); - if (bfd_write ((PTR) &buff, 1, FILHSZ, abfd) != FILHSZ) - return false; - } - - { - AOUTHDR buff; - - ecoff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) &buff); - if (bfd_write ((PTR) &buff, 1, AOUTSZ, abfd) != AOUTSZ) - return false; - } - - /* Write out the relocs. */ - for (current = abfd->sections; - current != (asection *) NULL; - current = current->next) - { - RELOC *buff; - arelent **reloc_ptr_ptr; - arelent **reloc_end; - RELOC *out_ptr; - - if (current->reloc_count == 0) - continue; - - buff = (RELOC *) bfd_alloc (abfd, current->reloc_count * RELSZ); - if (buff == (RELOC *) NULL) - { - bfd_error = no_memory; - return false; - } - - reloc_ptr_ptr = current->orelocation; - reloc_end = reloc_ptr_ptr + current->reloc_count; - out_ptr = buff; - for (; reloc_ptr_ptr < reloc_end; reloc_ptr_ptr++, out_ptr++) - { - arelent *reloc; - asymbol *sym; - struct internal_reloc in; - - memset (&in, 0, sizeof in); - - reloc = *reloc_ptr_ptr; - sym = *reloc->sym_ptr_ptr; - - /* This must be an ECOFF reloc. */ - BFD_ASSERT (reloc->howto != (reloc_howto_type *) NULL - && reloc->howto >= ecoff_howto_table - && (reloc->howto - < (ecoff_howto_table + ECOFF_HOWTO_COUNT))); - - in.r_vaddr = reloc->address + bfd_get_section_vma (abfd, current); - in.r_type = reloc->howto->type; - - /* If this is a REFHI reloc, the next one must be a REFLO - reloc for the same symbol. */ - BFD_ASSERT (in.r_type != ECOFF_R_REFHI - || (reloc_ptr_ptr < reloc_end - && (reloc_ptr_ptr[1]->howto - != (reloc_howto_type *) NULL) - && (reloc_ptr_ptr[1]->howto->type - == ECOFF_R_REFLO) - && (sym == *reloc_ptr_ptr[1]->sym_ptr_ptr))); - - if ((sym->flags & BSF_SECTION_SYM) == 0) - { - in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); - in.r_extern = 1; - } - else - { - CONST char *name; - - name = bfd_get_section_name (abfd, bfd_get_section (sym)); - if (strcmp (name, ".text") == 0) - in.r_symndx = RELOC_SECTION_TEXT; - else if (strcmp (name, ".rdata") == 0) - in.r_symndx = RELOC_SECTION_RDATA; - else if (strcmp (name, ".data") == 0) - in.r_symndx = RELOC_SECTION_DATA; - else if (strcmp (name, ".sdata") == 0) - in.r_symndx = RELOC_SECTION_SDATA; - else if (strcmp (name, ".sbss") == 0) - in.r_symndx = RELOC_SECTION_SBSS; - else if (strcmp (name, ".bss") == 0) - in.r_symndx = RELOC_SECTION_BSS; - else if (strcmp (name, ".init") == 0) - in.r_symndx = RELOC_SECTION_INIT; - else if (strcmp (name, ".lit8") == 0) - in.r_symndx = RELOC_SECTION_LIT8; - else if (strcmp (name, ".lit4") == 0) - in.r_symndx = RELOC_SECTION_LIT4; - else - abort (); - in.r_extern = 0; - } - - ecoff_swap_reloc_out (abfd, (PTR) &in, (PTR) out_ptr); - } - - if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) - return false; - if (bfd_write ((PTR) buff, RELSZ, current->reloc_count, abfd) - != RELSZ * current->reloc_count) - return false; - bfd_release (abfd, (PTR) buff); - } - - /* Write out the symbolic debugging information. */ - if (bfd_get_symcount (abfd) > 0) - { - HDRR *symhdr; - unsigned long sym_offset; - struct hdr_ext buff; - - /* Set up the offsets in the symbolic header. */ - symhdr = &ecoff_data (abfd)->symbolic_header; - sym_offset = ecoff_data (abfd)->sym_filepos + sizeof (struct hdr_ext); - -#define SET(offset, size, ptr) \ - if (symhdr->size == 0) \ - symhdr->offset = 0; \ - else \ - symhdr->offset = (((char *) ecoff_data (abfd)->ptr \ - - (char *) ecoff_data (abfd)->raw_syments) \ - + sym_offset); - - SET (cbLineOffset, cbLine, line); - SET (cbDnOffset, idnMax, external_dnr); - SET (cbPdOffset, ipdMax, external_pdr); - SET (cbSymOffset, isymMax, external_sym); - SET (cbOptOffset, ioptMax, external_opt); - SET (cbAuxOffset, iauxMax, external_aux); - SET (cbSsOffset, issMax, ss); - SET (cbSsExtOffset, issExtMax, ssext); - SET (cbFdOffset, ifdMax, external_fdr); - SET (cbRfdOffset, crfd, external_rfd); - SET (cbExtOffset, iextMax, external_ext); -#undef SET - - if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos, - SEEK_SET) != 0) - return false; - ecoff_swap_hdr_out (abfd, &ecoff_data (abfd)->symbolic_header, &buff); - if (bfd_write ((PTR) &buff, 1, sizeof buff, abfd) != sizeof buff) - return false; - if (bfd_write ((PTR) ecoff_data (abfd)->raw_syments, 1, - ecoff_data (abfd)->raw_size, abfd) - != ecoff_data (abfd)->raw_size) - return false; - } - else if ((abfd->flags & EXEC_P) != 0 - && (abfd->flags & D_PAGED) != 0) - { - char c; - - /* A demand paged executable must occupy an even number of - pages. */ - if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, - SEEK_SET) != 0) - return false; - if (bfd_read (&c, 1, 1, abfd) == 0) - c = 0; - if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, - SEEK_SET) != 0) - return false; - if (bfd_write (&c, 1, 1, abfd) != 1) - return false; - } - - return true; -} - -/* Archive handling. ECOFF uses what appears to be a unique type of - archive header (which I call an armap). The byte ordering of the - armap and the contents are encoded in the name of the armap itself. - At least for now, we only support archives with the same byte - ordering in the armap and the contents. - - The first four bytes in the armap are the number of symbol - definitions. This is always a power of two. - - This is followed by the symbol definitions. Each symbol definition - occupies 8 bytes. The first four bytes are the offset from the - start of the armap strings to the null-terminated string naming - this symbol. The second four bytes are the file offset to the - archive member which defines this symbol. If the second four bytes - are 0, then this is not actually a symbol definition, and it should - be ignored. - - The symbols are hashed into the armap with a closed hashing scheme. - See the functions below for the details of the algorithm. - - We could use the hash table when looking up symbols in a library. - This would require a new BFD target entry point to replace the - bfd_get_next_mapent function used by the linker. - - After the symbol definitions comes four bytes holding the size of - the string table, followed by the string table itself. */ - -/* The name of an archive headers looks like this: - __________E[BL]E[BL]_ (with a trailing space). - The trailing space is changed to an X if the archive is changed to - indicate that the armap is out of date. */ - -#define ARMAP_BIG_ENDIAN 'B' -#define ARMAP_LITTLE_ENDIAN 'L' -#define ARMAP_MARKER 'E' -#define ARMAP_START "__________" -#define ARMAP_HEADER_MARKER_INDEX 10 -#define ARMAP_HEADER_ENDIAN_INDEX 11 -#define ARMAP_OBJECT_MARKER_INDEX 12 -#define ARMAP_OBJECT_ENDIAN_INDEX 13 -#define ARMAP_END_INDEX 14 -#define ARMAP_END "_ " - -/* This is a magic number used in the hashing algorithm. */ -#define ARMAP_HASH_MAGIC 0x9dd68ab5 - -/* This returns the hash value to use for a string. It also sets - *REHASH to the rehash adjustment if the first slot is taken. SIZE - is the number of entries in the hash table, and HLOG is the log - base 2 of SIZE. */ - -static unsigned int -ecoff_armap_hash (s, rehash, size, hlog) - CONST char *s; - unsigned int *rehash; - unsigned int size; - unsigned int hlog; -{ - unsigned int hash; - - hash = *s++; - while (*s != '\0') - hash = ((hash >> 27) | (hash << 5)) + *s++; - hash *= ARMAP_HASH_MAGIC; - *rehash = (hash & (size - 1)) | 1; - return hash >> (32 - hlog); -} - -/* Read in the armap. */ - -static boolean -ecoff_slurp_armap (abfd) - bfd *abfd; -{ - char nextname[17]; - unsigned int i; - struct areltdata *mapdata; - bfd_size_type parsed_size; - char *raw_armap; - struct artdata *ardata; - unsigned int count; - char *raw_ptr; - struct symdef *symdef_ptr; - char *stringbase; - - /* Get the name of the first element. */ - i = bfd_read ((PTR) nextname, 1, 16, abfd); - if (i == 0) - return true; - if (i != 16) - return false; - - bfd_seek (abfd, (file_ptr) -16, SEEK_CUR); - - /* See if the first element is an armap. */ - if (strncmp (nextname, ARMAP_START, sizeof ARMAP_START - 1) != 0 - || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER - || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN - && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) - || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER - || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN - && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) - || strncmp (nextname + ARMAP_END_INDEX, - ARMAP_END, sizeof ARMAP_END - 1) != 0) - { - bfd_has_map (abfd) = false; - return true; - } - - /* Make sure we have the right byte ordering. */ - if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) - ^ (abfd->xvec->header_byteorder_big_p != false)) - || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) - ^ (abfd->xvec->byteorder_big_p != false))) - { - bfd_error = wrong_format; - return false; - } - - /* Read in the armap. */ - ardata = bfd_ardata (abfd); - mapdata = snarf_ar_hdr (abfd); - if (mapdata == (struct areltdata *) NULL) - return false; - parsed_size = mapdata->parsed_size; - bfd_release (abfd, (PTR) mapdata); - - raw_armap = (char *) bfd_alloc (abfd, parsed_size); - if (raw_armap == (char *) NULL) - { - bfd_error = no_memory; - return false; - } - - if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) - { - bfd_error = malformed_archive; - bfd_release (abfd, (PTR) raw_armap); - return false; - } - - count = bfd_h_get_32 (abfd, (PTR) raw_armap); - - ardata->symdef_count = 0; - ardata->cache = (struct ar_cache *) NULL; - - /* Hack: overlay the symdefs on top of the raw archive data. This - is the way do_slurp_bsd_armap works. */ - raw_ptr = raw_armap + LONG_SIZE; - symdef_ptr = (struct symdef *) raw_ptr; - ardata->symdefs = (carsym *) symdef_ptr; - stringbase = raw_ptr + count * (2 * LONG_SIZE) + LONG_SIZE; - -#ifdef CHECK_ARMAP_HASH - { - unsigned int hlog; - - /* Double check that I have the hashing algorithm right by making - sure that every symbol can be looked up successfully. */ - hlog = 0; - for (i = 1; i < count; i <<= 1) - hlog++; - BFD_ASSERT (i == count); - - for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE) - { - unsigned int name_offset, file_offset; - unsigned int hash, rehash, srch; - - name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); - file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE)); - if (file_offset == 0) - continue; - hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, - hlog); - if (hash == i) - continue; - - /* See if we can rehash to this location. */ - for (srch = (hash + rehash) & (count - 1); - srch != hash && srch != i; - srch = (srch + rehash) & (count - 1)) - BFD_ASSERT (bfd_h_get_32 (abfd, - (PTR) (raw_armap - + LONG_SIZE - + (srch * 2 * LONG_SIZE) - + LONG_SIZE)) - != 0); - BFD_ASSERT (srch == i); - } - } - - raw_ptr = raw_armap + LONG_SIZE; -#endif /* CHECK_ARMAP_HASH */ - - for (i = 0; i < count; i++, raw_ptr += 2 * LONG_SIZE) - { - unsigned int name_offset, file_offset; - - name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); - file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + LONG_SIZE)); - if (file_offset == 0) - continue; - symdef_ptr->s.name = stringbase + name_offset; - symdef_ptr->file_offset = file_offset; - ++symdef_ptr; - ++ardata->symdef_count; - } - - ardata->first_file_filepos = bfd_tell (abfd); - /* Pad to an even boundary. */ - ardata->first_file_filepos += ardata->first_file_filepos % 2; - - bfd_has_map (abfd) = true; - - return true; -} - -/* Write out an armap. */ - -static boolean -ecoff_write_armap (abfd, elength, map, orl_count, stridx) - bfd *abfd; - unsigned int elength; - struct orl *map; - unsigned int orl_count; - int stridx; -{ - unsigned int hashsize, hashlog; - unsigned int symdefsize; - int padit; - unsigned int stringsize; - unsigned int mapsize; - file_ptr firstreal; - struct ar_hdr hdr; - struct stat statbuf; - unsigned int i; - bfd_byte temp[LONG_SIZE]; - bfd_byte *hashtable; - bfd *current; - bfd *last_elt; - - /* Ultrix appears to use as a hash table size the least power of two - greater than twice the number of entries. */ - for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) - ; - hashsize = 1 << hashlog; - - symdefsize = hashsize * 2 * LONG_SIZE; - padit = stridx % 2; - stringsize = stridx + padit; - - /* Include 8 bytes to store symdefsize and stringsize in output. */ - mapsize = LONG_SIZE + symdefsize + stringsize + LONG_SIZE; - - firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; - - memset ((PTR) &hdr, 0, sizeof hdr); - - /* Work out the ECOFF armap name. */ - strcpy (hdr.ar_name, ARMAP_START); - hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; - hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = - (abfd->xvec->header_byteorder_big_p - ? ARMAP_BIG_ENDIAN - : ARMAP_LITTLE_ENDIAN); - hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; - hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = - abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; - memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); - - /* Write the timestamp of the archive header to be just a little bit - later than the timestamp of the file, otherwise the linker will - complain that the index is out of date. Actually, the Ultrix - linker just checks the archive name; the GNU linker may check the - date. */ - stat (abfd->filename, &statbuf); - sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); - - /* The DECstation uses zeroes for the uid, gid and mode of the - armap. */ - hdr.ar_uid[0] = '0'; - hdr.ar_gid[0] = '0'; - hdr.ar_mode[0] = '0'; - - sprintf (hdr.ar_size, "%-10d", (int) mapsize); - - hdr.ar_fmag[0] = '`'; - hdr.ar_fmag[1] = '\n'; - - /* Turn all null bytes in the header into spaces. */ - for (i = 0; i < sizeof (struct ar_hdr); i++) - if (((char *)(&hdr))[i] == '\0') - (((char *)(&hdr))[i]) = ' '; - - if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) - != sizeof (struct ar_hdr)) - return false; - - bfd_h_put_32 (abfd, hashsize, temp); - if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE) - return false; - - hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); - - current = abfd->archive_head; - last_elt = current; - for (i = 0; i < orl_count; i++) - { - unsigned int hash, rehash; - - /* Advance firstreal to the file position of this archive - element. */ - if (((bfd *) map[i].pos) != last_elt) - { - do - { - firstreal += arelt_size (current) + sizeof (struct ar_hdr); - firstreal += firstreal % 2; - current = current->next; - } - while (current != (bfd *) map[i].pos); - } - - last_elt = current; - - hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); - if (bfd_h_get_32 (abfd, (PTR) (hashtable - + (hash * 2 * LONG_SIZE) - + LONG_SIZE)) - != 0) - { - unsigned int srch; - - /* The desired slot is already taken. */ - for (srch = (hash + rehash) & (hashsize - 1); - srch != hash; - srch = (srch + rehash) & (hashsize - 1)) - if (bfd_h_get_32 (abfd, (PTR) (hashtable - + (srch * 2 * LONG_SIZE) - + LONG_SIZE)) - == 0) - break; - - BFD_ASSERT (srch != hash); - - hash = srch; - } - - bfd_h_put_32 (abfd, map[i].namidx, - (PTR) (hashtable + hash * 2 * LONG_SIZE)); - bfd_h_put_32 (abfd, firstreal, - (PTR) (hashtable + hash * 2 * LONG_SIZE + LONG_SIZE)); - } - - if (bfd_write (hashtable, 1, symdefsize, abfd) != symdefsize) - return false; - - bfd_release (abfd, hashtable); - - /* Now write the strings. */ - bfd_h_put_32 (abfd, stringsize, temp); - if (bfd_write (temp, 1, LONG_SIZE, abfd) != LONG_SIZE) - return false; - for (i = 0; i < orl_count; i++) - { - bfd_size_type len; - - len = strlen (*map[i].name) + 1; - if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) - return false; - } - - /* The spec sez this should be a newline. But in order to be - bug-compatible for DECstation ar we use a null. */ - if (padit) - { - if (bfd_write ("\0", 1, 1, abfd) != 1) - return false; - } - - return true; -} - -/* We just use the generic extended name support. This is a GNU - extension. */ -#define ecoff_slurp_extended_name_table _bfd_slurp_extended_name_table - -/* See whether this BFD is an archive. If it is, read in the armap - and the extended name table. */ - -static bfd_target * -ecoff_archive_p (abfd) - bfd *abfd; -{ - char armag[SARMAG + 1]; - - if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG - || strncmp (armag, ARMAG, SARMAG) != 0) - { - bfd_error = wrong_format; - return (bfd_target *) NULL; - } - - /* We are setting bfd_ardata(abfd) here, but since bfd_ardata - involves a cast, we can't do it as the left operand of - assignment. */ - abfd->tdata.aout_ar_data = - (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); - - if (bfd_ardata (abfd) == (struct artdata *) NULL) - { - bfd_error = no_memory; - return (bfd_target *) NULL; - } - - bfd_ardata (abfd)->first_file_filepos = SARMAG; - - if (ecoff_slurp_armap (abfd) == false - || ecoff_slurp_extended_name_table (abfd) == false) - { - bfd_release (abfd, bfd_ardata (abfd)); - abfd->tdata.aout_ar_data = (struct artdata *) NULL; - return (bfd_target *) NULL; - } - - return abfd->xvec; } #ifdef HOST_IRIX4 @@ -4371,46 +415,24 @@ ecoff_core_file_matches_executable_p (core_bfd, exec_bfd) bfd_target structure is set to this. The section reading code in coffgen.c uses this structure. */ -static CONST bfd_coff_backend_data bfd_ecoff_std_swap_table = { +static CONST bfd_coff_backend_data mips_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, + (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, - ecoff_swap_filehdr_in, ecoff_swap_aouthdr_in, ecoff_swap_scnhdr_in, - ecoff_bad_format_hook, ecoff_set_arch_mach_hook, ecoff_mkobject_hook, + 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 }; -/* 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) - -/* These bfd_target functions are defined in other files. */ - -#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_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 -#define ecoff_bfd_make_debug_symbol \ - ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr) - bfd_target ecoff_little_vec = { "ecoff-littlemips", /* name */ @@ -4437,12 +459,12 @@ bfd_target ecoff_little_vec = {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ ecoff_archive_p, _bfd_dummy_target}, - {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, + {bfd_false, mips_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), - (PTR) &bfd_ecoff_std_swap_table + (PTR) &mips_ecoff_std_swap_table }; bfd_target ecoff_big_vec = @@ -4469,12 +491,12 @@ bfd_target ecoff_big_vec = _do_getb16, _do_getb_signed_16, _do_putb16, {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ ecoff_archive_p, ecoff_core_file_p}, - {bfd_false, ecoff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, + {bfd_false, mips_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), - (PTR) &bfd_ecoff_std_swap_table + (PTR) &mips_ecoff_std_swap_table /* Note that there is another bfd_target just above this one. If you are adding initializers here, you should be adding them there as well. */ |