/* Read a symbol table in MIPS' format (Third-Eye).
- Copyright (C) 1986, 1987, 1989-1991 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
+ Free Software Foundation, Inc.
+ by Per Bothner, John Gilmore and Ian Lance Taylor at Cygnus Support.
This file is part of GDB.
-GDB is free software; you can redistribute it and/or modify
+This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-GDB is distributed in the hope that it will be useful,
+This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include <stdio.h>
-#include "param.h"
-#include "obstack.h"
-#include <sys/param.h>
-#include <sys/file.h>
-#include <sys/stat.h>
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/* Read symbols from an ECOFF file. Most of the work is done in
+ mdebugread.c. */
+
#include "defs.h"
+#include "gdb_string.h"
+#include "bfd.h"
#include "symtab.h"
-#include "gdbcore.h"
#include "symfile.h"
-#ifdef CMUCS
-#include <mips/syms.h>
-#else /* not CMUCS */
-#include <syms.h>
-#endif /* not CMUCS */
-
-/* Since these things are defined differently on various systems I'll
- (re)define here what I really need in this module. I only assume the
- three standard COFF structure definitions: filehdr, aouthdr, scnhdr */
-#define MIPS /* Kludge to get MIPS version of coff */
-#include "intel-coff.h"
-
-struct coff_exec {
- struct filehdr f;
- struct aouthdr a;
-};
-#undef a_magic
-#undef a_text
-#undef a_data
-#undef a_bss
-#undef a_syms
-#undef a_entry
-#define a_magic a.magic /* magic number */
-#define a_text a.tsize /* size of text segment */
-#define a_data a.dsize /* size of initialized data */
-#define a_bss a.bsize /* size of uninitialized data */
-#define a_syms f.f_nsyms /* size of symbol table */
-#define a_entry a.entry /* entry point */
-
-#undef N_BADMAG
-#define N_BADMAG(x) \
- (((x).a_magic)!=OMAGIC && ((x).a_magic)!=NMAGIC && ((x).a_magic)!=ZMAGIC)
-
-/* Things we import explicitly from other modules */
-
-extern int info_verbose;
-extern struct block *block_for_pc();
-extern void sort_symtab_syms();
-
-/* Forward declarations */
-
-static void psymtab_to_symtab_1();
-
-/* Macros and extra defs */
-
-struct complaint unknown_ext_complaint =
- {"unknown external symbol %s", 0, 0};
-
-/* Already parsed symbols are marked specially */
-
-#define stParsed stType
-
-/* Puns: hard to find whether -g was used and how */
-
-#define MIN_GLEVEL GLEVEL_0
-#define compare_glevel(a,b) \
- (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \
- ((b) == GLEVEL_3) ? -1 : (int)((b) - (a)))
-
-/* When looking at .o files avoid tripping over bad addresses */
-
-#define SAFE_TEXT_ADDR 0x400000
-#define SAFE_DATA_ADDR 0x10000000
-
-#define UNSAFE_DATA_ADDR(p) ((unsigned)p < SAFE_DATA_ADDR || (unsigned)p > 2*SAFE_DATA_ADDR)
-\f
-/* Things that really are local to this module */
-
-/* GDB symtable for the current compilation unit */
-
-static struct symtab *cur_stab;
-
-/* Header for executable/object file we read symbols from */
-
-static struct coff_exec filhdr;
-#define END_OF_TEXT_SEGMENT(f) ((f).a.text_start + (f).a.tsize)
-
-/* Pointer to current file decriptor record, and its index */
-
-static FDR *cur_fdr;
-static int cur_fd;
-
-/* Index of current symbol */
-
-static int cur_sdx;
-
-/* Note how much "debuggable" this image is. We would like
- to see at least one FDR with full symbols */
-
-static max_gdbinfo;
-static max_glevel;
-
-/* When examining .o files, report on undefined symbols */
-
-static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs;
-
-/* Extra builtin types */
-
-struct type *builtin_type_complex;
-struct type *builtin_type_double_complex;
-struct type *builtin_type_fixed_dec;
-struct type *builtin_type_float_dec;
-struct type *builtin_type_string;
-
-/* Template types */
-
-static struct type *builtin_type_ptr;
-static struct type *builtin_type_struct;
-static struct type *builtin_type_union;
-static struct type *builtin_type_enum;
-static struct type *builtin_type_range;
-static struct type *builtin_type_set;
-
-
-/* Forward decls */
-
-static struct symbol *new_symbol();
-static struct type *new_type();
-static struct field *new_field();
-static struct block *new_block();
-static struct symtab *new_symtab();
-static struct linetable *new_linetable();
-static struct blockvector *new_bvect();
-
-static struct type *parse_type();
-static struct type *make_type();
-static struct symbol *mylookup_symbol();
-static struct block *shrink_block();
-
-static int compare_symtabs();
-static int compare_psymtabs();
-static int compare_blocks();
-
-static struct partial_symtab *new_psymtab();
-static struct partial_symbol *new_psymbol();
-static struct partial_symtab *parse_fdr();
-static int compare_psymbols();
-
-static void reorder_symtabs();
-static void reorder_psymtabs();
-\f
-/* Things we export to other modules */
-
-
-/* Lists of partial symbols */
-
-struct psymbol_allocation_list global_psymbols, static_psymbols;
-
-/* Address bounds for the signal trampoline in inferior, if any */
-
-CORE_ADDR sigtramp_address, sigtramp_end;
+#include "objfiles.h"
+#include "buildsym.h"
+#include "stabsread.h"
+#include "gdb-stabs.h"
+
+#include "coff/sym.h"
+#include "coff/internal.h"
+#include "coff/ecoff.h"
+#include "libcoff.h" /* Private BFD COFF information. */
+#include "libecoff.h" /* Private BFD ECOFF information. */
+#include "elf/common.h"
+#include "elf/mips.h"
+static void
+mipscoff_new_init PARAMS ((struct objfile *));
-/* Functions that we really export */
+static void
+mipscoff_symfile_init PARAMS ((struct objfile *));
-/* THIS DESCRIPTION IS OBSOLETE POST-BFD; FIXME! */
-/* Basically, this module must provide two functions: symbol_file_command()
- which loads the symbol table from a file, and add_file_command() which
- adds more symbols to the symbol table (incrementally).
+static void
+mipscoff_symfile_read PARAMS ((struct objfile *, struct section_offsets *,
+ int));
- These two functions only do the minimum work necessary for letting the
- user "name" things symbolically, they do not read the entire symtab.
- Instead, they read in the external symbols and put them in partial
- symbol tables. When more extensive information is requested of a
- file the corresponding partial symbol table is mutated into a full
- fledged symbol table by going back and reading the relative symbols
- for real. mipscoff_psymtab_to_symtab() is the function that does this */
+static void
+mipscoff_symfile_finish PARAMS ((struct objfile *));
-/* The entry point (starting address) of the file, if it is an executable. */
+static void
+read_alphacoff_dynamic_symtab PARAMS ((struct section_offsets *,
+ struct objfile *objfile));
-static CORE_ADDR entry_point;
+/* Initialize anything that needs initializing when a completely new
+ symbol file is specified (not just adding some symbols from another
+ file, e.g. a shared library). */
-extern CORE_ADDR startup_file_start; /* From blockframe.c */
-extern CORE_ADDR startup_file_end; /* From blockframe.c */
+extern CORE_ADDR sigtramp_address;
-void
-mipscoff_new_init()
+static void
+mipscoff_new_init (ignore)
+ struct objfile *ignore;
{
+ sigtramp_address = 0;
+ stabsread_new_init ();
+ buildsym_new_init ();
}
-void
-mipscoff_symfile_init (sf)
- struct sym_fns *sf;
+/* Initialize to read a symbol file (nothing to do). */
+
+static void
+mipscoff_symfile_init (objfile)
+ struct objfile *objfile;
{
- bfd *abfd = sf->sym_bfd;
- sf->sym_private = NULL;
- /* Save startup file's range of PC addresses to help blockframe.c
- decide where the bottom of the stack is. */
- if (bfd_get_file_flags (abfd) & EXEC_P)
- {
- /* Executable file -- record its entry point so we'll recognize
- the startup file because it contains the entry point. */
- entry_point = bfd_get_start_address (abfd);
- }
- else
- {
- /* Examination of non-executable.o files. Short-circuit this stuff. */
- /* ~0 will not be in any file, we hope. */
- entry_point = ~0;
- /* set the startup file to be an empty range. */
- startup_file_start = 0;
- startup_file_end = 0;
- }
}
-void
-mipscoff_symfile_read(sf, addr, mainline)
- struct sym_fns *sf;
- CORE_ADDR addr;
+/* Read a symbol file from a file. */
+
+static void
+mipscoff_symfile_read (objfile, section_offsets, mainline)
+ struct objfile *objfile;
+ struct section_offsets *section_offsets;
int mainline;
{
- struct coff_symfile_info *info = (struct coff_symfile_info *)sf->sym_private;
- bfd *abfd = sf->sym_bfd;
- char *name = bfd_get_filename (abfd);
- int desc;
- register int val;
- int num_symbols;
- int symtab_offset;
- int stringtab_offset;
-
-/* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */
- desc = fileno ((FILE *)(abfd->iostream)); /* Raw file descriptor */
- num_symbols = bfd_get_symcount (abfd); /* How many syms */
-/* symtab_offset = obj_sym_filepos (abfd); * Symbol table file offset */
-/* stringtab_offset = symtab_offset + num_symbols * SYMESZ; * String tab */
-/* End of warning */
-
-#ifdef TDESC
- debug_info = text_hdr.s_relptr;
- if (tdesc_handle)
- {
- dc_terminate (tdesc_handle);
- tdesc_handle = 0;
- }
-#endif
-
-#if 0
- /* Read the line number table, all at once. */
- info->min_lineno_offset = 0;
- info->max_lineno_offset = 0;
- bfd_map_over_sections (abfd, find_linenos, info);
-
- val = init_lineno (desc, info->min_lineno_offset,
- info->max_lineno_offset - info->min_lineno_offset);
- if (val < 0)
- error ("\"%s\": error reading line numbers\n", name);
-
- /* Now read the string table, all at once. */
-
- val = init_stringtab (desc, stringtab_offset);
- if (val < 0)
- {
- free_all_symtabs (); /* FIXME blows whole symtab */
- printf ("\"%s\": can't get string table", name);
- fflush (stdout);
- return;
- }
- make_cleanup (free_stringtab, 0);
-#endif
- /* Position to read the symbol table. Do not read it all at once. */
- val = lseek (desc, (long)symtab_offset, 0);
- if (val < 0)
- perror_with_name (name);
+ bfd *abfd = objfile->obfd;
+ struct cleanup * back_to;
- init_misc_bunches ();
- make_cleanup (discard_misc_bunches, 0);
+ init_minimal_symbol_collection ();
+ back_to = make_cleanup (discard_minimal_symbols, 0);
/* Now that the executable file is positioned at symbol table,
process it and define symbols accordingly. */
- read_mips_symtab(desc, 0);
-
-/* patch_opaque_types ();*/
-
- /* Sort symbols alphabetically within each block. */
-
- sort_all_symtab_syms ();
+ if (!((*ecoff_backend (abfd)->debug_swap.read_debug_info)
+ (abfd, (asection *) NULL, &ecoff_data (abfd)->debug_info)))
+ error ("Error reading symbol table: %s", bfd_errmsg (bfd_get_error ()));
- /* Go over the misc symbol bunches and install them in vector. */
+ mdebug_build_psymtabs (objfile, &ecoff_backend (abfd)->debug_swap,
+ &ecoff_data (abfd)->debug_info, section_offsets);
- condense_misc_bunches (0);
+ /* Add alpha coff dynamic symbols. */
- /* Make a default for file to list. */
-
- select_source_symtab (0); /* FIXME, this might be too slow, see dbxread */
-}
-
-void
-mipscoff_symfile_discard()
-{
-}
-
-/* Exported procedure: Allocate zeroed memory */
+ read_alphacoff_dynamic_symtab (section_offsets, objfile);
-char *xzalloc(size)
-{
- char *p = xmalloc(size);
-
- bzero(p, size);
- return p;
-}
-
-/* Exported procedure: Builds a symtab from the PST partial one.
- Restores the environment in effect when PST was created, delegates
- most of the work to an ancillary procedure, and sorts
- and reorders the symtab list at the end */
-
-/* Forward decls */
-static HDRR *cur_hdr; /* MIPS symtab header for the current file */
-
-void
-mipscoff_psymtab_to_symtab(pst)
- struct partial_symtab *pst;
-{
- struct symtab *ret;
- int i;
-
- if (!pst)
- return;
-
- if (info_verbose) {
- printf_filtered("Reading in symbols for %s...", pst->filename);
- fflush(stdout);
- }
- /* Restore the header and list of pending typedefs */
- cur_hdr = (HDRR *) pst->ldsymlen;
-
- psymtab_to_symtab_1(pst);
-
- reorder_symtabs();
-
- /* Finish up the debug error message. */
- if (info_verbose)
- printf_filtered("done.\n");
-}
+ /* Install any minimal symbols that have been collected as the current
+ minimal symbols for this objfile. */
-/* Exported procedure: Is PC in the signal trampoline code */
+ install_minimal_symbols (objfile);
-int in_sigtramp(pc,name)
- CORE_ADDR pc;
-{
- if (sigtramp_address == 0)
- fixup_sigtramp();
- return (pc >= sigtramp_address && pc < sigtramp_end);
-}
-\f
-/* File-level interface functions */
-
-/* Read the symtab information from file FSYM into memory */
-
-static
-read_the_mips_symtab(fsym)
-{
- int stsize, st_hdrsize;
- unsigned st_filptr;
- HDRR st_hdr;
-
- /* Find and read the symbol table header */
- st_hdrsize = filhdr.f.f_nsyms;
- st_filptr = filhdr.f.f_symptr;
- if (st_filptr == 0)
- return 0;
-
- lseek(fsym, st_filptr, L_SET);
- if (read(fsym, &st_hdr, st_hdrsize) != st_hdrsize)
- goto readerr;
-
- /* Find out how large the symbol table is */
- stsize = (st_hdr.cbExtOffset - (st_filptr + st_hdrsize))
- + st_hdr.iextMax * cbEXTR;
-
- /* Allocate space for the symbol table. Read it in. */
- cur_hdr = (HDRR *) xmalloc(stsize + st_hdrsize);
-
- bcopy(&st_hdr, cur_hdr, st_hdrsize);
- if (read(fsym, (char *) cur_hdr + st_hdrsize, stsize) != stsize)
- goto readerr;
-
- /* Fixup file_pointers in it */
- fixup_symtab(cur_hdr, (char *) cur_hdr + st_hdrsize,
- st_filptr + st_hdrsize);
-
- return;
-readerr:
- error("Short read on %s", symfile);
-}
-
-
-/* Turn all file-relative pointers in the symtab described by HDR
- into memory pointers, given that the symtab itself is located
- at DATA in memory and F_PTR in the file. */
-
-static
-fixup_symtab( hdr, data, f_ptr)
- HDRR *hdr;
- char *data;
-{
- int f_idx, s_idx;
- FDR *fh;
- SYMR *sh;
- OPTR *op;
- PDR *pr;
- EXTR *esh;
-
- /*
- * These fields are useless (and empty) by now:
- * hdr->cbDnOffset, hdr->cbOptOffset
- * We use them for other internal purposes.
- */
- hdr->cbDnOffset = 0;
- hdr->cbOptOffset = 0;
-
-#define FIX(off) \
- if (hdr->off) hdr->off = (unsigned int)data + (hdr->off - f_ptr);
-
- FIX(cbLineOffset);
- FIX(cbPdOffset);
- FIX(cbSymOffset);
- FIX(cbOptOffset);
- FIX(cbAuxOffset);
- FIX(cbSsOffset);
- FIX(cbSsExtOffset);
- FIX(cbFdOffset);
- FIX(cbRfdOffset);
- FIX(cbExtOffset);
-#undef FIX
-
-
- /*
- * Fix all string pointers inside the symtab, and
- * the FDR records. Also fix other miscellany.
- */
- for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) {
- register unsigned code_offset;
-
- /* Header itself, and strings */
- fh = (FDR *) (hdr->cbFdOffset) + f_idx;
- fh->issBase += hdr->cbSsOffset;
- if (fh->rss != -1)
- fh->rss = (long)fh->rss + fh->issBase;
- for (s_idx = 0; s_idx < fh->csym; s_idx++) {
- sh = (SYMR*)(hdr->cbSymOffset) + fh->isymBase + s_idx;
- sh->iss = (long) sh->iss + fh->issBase;
- sh->reserved = 0;
- }
-
- cur_fd = f_idx;
-
- /* Local symbols */
- fh->isymBase = (int)((SYMR*)(hdr->cbSymOffset)+fh->isymBase);
-
- /* cannot fix fh->ipdFirst because it is a short */
-#define IPDFIRST(h,fh) \
- ((long)h->cbPdOffset + fh->ipdFirst * sizeof(PDR))
-
- /* Optional symbols (actually used for partial_symtabs) */
- fh->ioptBase = 0;
- fh->copt = 0;
-
- /* Aux symbols */
- if (fh->caux)
- fh->iauxBase = hdr->cbAuxOffset + fh->iauxBase * sizeof(AUXU);
- /* Relative file descriptor table */
- fh->rfdBase = hdr->cbRfdOffset + fh->rfdBase * sizeof(RFDT);
-
- /* Line numbers */
- if (fh->cbLine)
- fh->cbLineOffset += hdr->cbLineOffset;
-
- /* Procedure symbols. (XXX This should be done later) */
- code_offset = fh->adr;
- for (s_idx = 0; s_idx < fh->cpd; s_idx++) {
- unsigned name, only_ext;
-
- pr = (PDR*)(IPDFIRST(hdr,fh)) + s_idx;
-
- /* Simple rule to find files linked "-x" */
- only_ext = fh->rss == -1;
- if (only_ext) {
- if (pr->isym == -1) {
- /* static function */
- sh = (SYMR*)-1;
- } else {
- /* external */
- name = hdr->cbExtOffset + pr->isym * sizeof(EXTR);
- sh = &((EXTR*)name)->asym;
- }
- } else {
- /* Full symbols */
- sh = (SYMR*)fh->isymBase + pr->isym;
- /* Included code ? */
- if (s_idx == 0 && pr->adr != 0)
- code_offset -= pr->adr;
- }
-
- /* Turn index into a pointer */
- pr->isym = (long)sh;
-
- /* Fix line numbers */
- pr->cbLineOffset += fh->cbLineOffset;
-
- /* Relocate address */
- if (!only_ext)
- pr->adr += code_offset;
- }
- }
-
- /* External symbols: fix string */
- for (s_idx = 0; s_idx < hdr->iextMax; s_idx++) {
- esh = (EXTR*)(hdr->cbExtOffset) + s_idx;
- esh->asym.iss = esh->asym.iss + hdr->cbSsExtOffset;
- }
-}
-
-
-/* Find a file descriptor given its index RF relative to a file CF */
-
-static
-FDR *get_rfd( cf, rf)
-{
- register FDR *f;
-
- f = (FDR *) (cur_hdr->cbFdOffset) + cf;
- /* Object files do not have the RFD table, all refs are absolute */
- if (f->rfdBase == 0)
- return (FDR *) (cur_hdr->cbFdOffset) + rf;
- cf = *((pRFDT) f->rfdBase + rf);
- return (FDR *) (cur_hdr->cbFdOffset) + cf;
-}
-
-/* Return a safer print NAME for a file descriptor */
-
-static
-char *fdr_name(name)
- char *name;
-{
- if (name == (char *) -1)
- return "<stripped file>";
- if (UNSAFE_DATA_ADDR(name))
- return "<NFY>";
- return name;
-}
-
-
-/* Read in and parse the symtab of the file DESC. INCREMENTAL says
- whether we are adding to the general symtab or not */
-
-static
-read_mips_symtab( desc, incremental)
-{
- /*
- * We get here with DESC pointing to the symtab header. But we need
- * other info from the initial headers
- */
- lseek(desc, 0L, 0);
- myread(desc, &filhdr, sizeof filhdr);
-
- read_the_mips_symtab(desc);
-
- parse_partial_symbols(cur_hdr, incremental);
- cur_hdr = 0;
-
- /*
- * Check to make sure file was compiled with -g.
- * If not, warn the user of this limitation.
- */
- if (compare_glevel(max_glevel, GLEVEL_2) < 0) {
- if (max_gdbinfo == 0)
- printf("\n%s not compiled with -g, debugging support is limited.", symfile);
- printf("\nYou should compile with -g2 or -g3 for best debugging support.\n");
- fflush(stdout);
- }
-
- /*
- * Dont allow char * to have a typename (else would get
- * caddr_t.)
- */
- TYPE_NAME(lookup_pointer_type(builtin_type_char)) = 0;
-}
-
-\f
-/* Local utilities */
-
-
-/* Map of FDR indexes to partial symtabs */
-
-static struct pst_map {
- struct partial_symtab *pst; /* the psymtab proper */
- int n_globals; /* globals it exports */
-} * fdr_to_pst;
-
-
-/* Utility stack, used to nest procedures and blocks properly.
- It is a doubly linked list, to avoid too many alloc/free.
- Since we might need it quite a few times it is NOT deallocated
- after use. */
-
-static struct parse_stack {
- struct parse_stack *next, *prev;
- struct symtab *cur_st; /* Current symtab */
- struct block *cur_block; /* Block in it */
- int blocktype; /* What are we parsing */
- int maxsyms; /* Max symbols in this block */
- struct type *cur_type; /* Type we parse fields for */
- int procadr; /* Start addres of this procedure */
- int numargs; /* Its argument count */
-} *top_stack; /* Top stack ptr */
-
-
-/* Enter a new lexical context */
-
-static push_parse_stack()
-{
- struct parse_stack *new;
-
- /* Reuse frames if possible */
- if (top_stack && top_stack->prev)
- new = top_stack->prev;
- else
- new = (struct parse_stack *) xzalloc(sizeof(struct parse_stack));
- /* Initialize new frame with previous content */
- if (top_stack) {
- register struct parse_stack *prev = new->prev;
-
- *new = *top_stack;
- top_stack->prev = new;
- new->prev = prev;
- new->next = top_stack;
- }
- top_stack = new;
-}
-
-/* Exit a lexical context */
-
-static pop_parse_stack()
-{
- if (!top_stack)
- return;
- if (top_stack->next)
- top_stack = top_stack->next;
-}
-
-
-/* Cross-references might be to things we haven't looked at
- yet, e.g. type references. To avoid too many type
- duplications we keep a quick fixup table, an array
- of lists of references indexed by file descriptor */
-
-static struct pending {
- struct pending *next; /* link */
- SYMR *s; /* the symbol */
- struct type *t; /* its partial type descriptor */
-} **pending_list;
-
-
-/* Check whether we already saw symbol SH in file FH as undefined */
-
-static
-struct pending *is_pending_symbol(fh, sh)
- FDR *fh;
- SYMR *sh;
-{
- int f_idx = fh - (FDR *) cur_hdr->cbFdOffset;
- register struct pending *p;
-
- /* Linear search is ok, list is typically no more than 10 deep */
- for (p = pending_list[f_idx]; p; p = p->next)
- if (p->s == sh)
- break;
- return p;
-}
-
-/* Check whether we already saw type T in file FH as undefined */
-
-static
-struct pending *is_pending_type(fh, t)
- FDR *fh;
- struct type *t;
-{
- int f_idx = fh - (FDR *) cur_hdr->cbFdOffset;
- register struct pending *p;
-
- for (p = pending_list[f_idx]; p; p = p->next)
- if (p->t == t)
- break;
- return p;
-}
-
-/* Add a new undef symbol SH of type T */
-
-static
-add_pending(fh, sh, t)
- FDR *fh;
- SYMR *sh;
- struct type *t;
-{
- int f_idx = fh - (FDR *) cur_hdr->cbFdOffset;
- struct pending *p = is_pending_symbol(fh, sh);
-
- /* Make sure we do not make duplicates */
- if (!p) {
- p = (struct pending *) xmalloc(sizeof(*p));
- p->s = sh;
- p->t = t;
- p->next = pending_list[f_idx];
- pending_list[f_idx] = p;
- }
- sh->reserved = 1; /* for quick check */
-}
-
-/* Throw away undef entries when done with file index F_IDX */
-
-static
-free_pending(f_idx)
-{
- register struct pending *p, *q;
-
- for (p = pending_list[f_idx]; p; p = q) {
- q = p->next;
- free(p);
- }
- pending_list[f_idx] = 0;
-}
-
-/* The number of args to a procedure is not explicit in the symtab,
- this is the list of all those we know of.
- This makes parsing more reasonable and avoids extra passes */
-
-static struct numarg {
- struct numarg *next; /* link */
- unsigned adr; /* procedure's start address */
- unsigned num; /* arg count */
-} *numargs_list;
-
-/* Record that the procedure at ADR takes NUM arguments. */
-
-static
-got_numargs(adr,num)
-{
- struct numarg *n = (struct numarg *) xmalloc(sizeof(struct numarg));
-
- n->adr = adr;
- n->num = num;
- n->next = numargs_list;
- numargs_list = n;
-}
-
-/* See if we know how many arguments the procedure at ADR takes */
-
-static
-lookup_numargs(adr)
-{
- struct numarg *n = numargs_list;
-
- while (n && n->adr != adr)
- n = n->next;
- return (n) ? n->num : -1;
-}
-
-/* Release storage when done with this file */
-
-static
-free_numargs()
-{
- struct numarg *n = numargs_list, *m;
-
- while (n) {
- m = n->next;
- free(n);
- n = m;
- }
- numargs_list = 0;
-}
-
-\f
-/* Parsing Routines proper. */
-
-/* Parse a single symbol. Mostly just make up a GDB symbol for it.
- For blocks, procedures and types we open a new lexical context.
- This is basically just a big switch on the symbol's type */
-
-static
-parse_symbol(sh, ax)
- SYMR *sh;
- AUXU *ax;
-{
- struct symbol *s;
- struct block *b;
- struct type *t;
- struct field *f;
- /* When a symbol is cross-referenced from other files/symbols
- we mark it explicitly */
- int pend = (sh->reserved == 1);
- enum address_class class;
-
- switch (sh->st) {
-
- case stNil:
- break;
-
- case stGlobal: /* external symbol, goes into the primary block */
- class = LOC_STATIC;
- b = BLOCKVECTOR_BLOCK(BLOCKVECTOR(top_stack->cur_st),
- GLOBAL_BLOCK);
- goto data;
-
- case stStatic: /* static data, goes into the current block. */
- class = LOC_STATIC;
- b = top_stack->cur_block;
- goto data;
-
- case stLocal: /* local variable, goes into the current block */
- if (sh->sc == scRegister) {
- class = LOC_REGISTER;
- if (sh->value > 31)
- sh->value += 6;
- } else
- class = LOC_LOCAL;
- b = top_stack->cur_block;
-
-data: /* Common code for symbols describing data */
- s = new_symbol(sh->iss);
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
- SYMBOL_CLASS(s) = class;
- add_symbol(s, b);
-
- /* Type could be missing in a number of cases */
- if (sh->sc == scUndefined || sh->sc == scNil ||
- sh->index == 0xfffff)
- SYMBOL_TYPE(s) = builtin_type_int; /* undefined? */
- else
- SYMBOL_TYPE(s) = parse_type(ax + sh->index, sh, 0);
- /* Value of a data symbol is its memory address */
- SYMBOL_VALUE(s) = sh->value;
- break;
-
- case stParam: /* argument to procedure, goes into current block */
- max_gdbinfo++;
- top_stack->numargs++;
- s = new_symbol(sh->iss);
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
- if (sh->sc == scRegister) {
- SYMBOL_CLASS(s) = LOC_REGPARM;
- if (sh->value > 31)
- sh->value += 6;
- } else
- SYMBOL_CLASS(s) = LOC_ARG;
- SYMBOL_VALUE(s) = sh->value;
- SYMBOL_TYPE(s) = parse_type(ax + sh->index, sh, 0);
- add_symbol(s, top_stack->cur_block);
- break;
-
- case stLabel: /* label, we do make a symbol for it */
- s = new_symbol(sh->iss);
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE; /* so that it can be used */
- SYMBOL_CLASS(s) = LOC_LABEL; /* but not misused */
- SYMBOL_VALUE(s) = sh->value;
- SYMBOL_TYPE(s) = builtin_type_int;
- add_symbol(s, top_stack->cur_block);
- break;
-
- case stProc: /* Procedure */
- case stStaticProc: /* Static procedure */
- s = new_symbol(sh->iss);
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_BLOCK;
- /* Type of the return value */
- if (sh->sc == scUndefined || sh->sc == scNil)
- t = builtin_type_int;
- else
- t = parse_type(ax + sh->index, sh, 0);
- add_symbol(s, top_stack->cur_block);
-
- /* Make a type for the procedure itself */
- SYMBOL_TYPE(s) = lookup_function_type (t);
-
- /* Create and enter a new lexical context */
- b = new_block(top_stack->maxsyms);
- SYMBOL_BLOCK_VALUE(s) = b;
- BLOCK_FUNCTION(b) = s;
- BLOCK_START(b) = BLOCK_END(b) = sh->value;
- BLOCK_SUPERBLOCK(b) = top_stack->cur_block;
- add_block(b, top_stack->cur_st);
-
- /* Not if we only have partial info */
- if (sh->sc == scUndefined || sh->sc == scNil)
- break;
-
- push_parse_stack();
- top_stack->cur_block = b;
- top_stack->blocktype = sh->st;
- top_stack->cur_type = SYMBOL_TYPE(s);
- top_stack->procadr = sh->value;
- top_stack->numargs = 0;
-
- sh->value = (long) SYMBOL_TYPE(s);
- break;
-
- case stBlock: /* Either a lexical block, or some type */
- push_parse_stack();
- top_stack->blocktype = stBlock;
- if (sh->sc == scInfo) { /* structure/union/enum def */
- s = new_symbol(sh->iss);
- SYMBOL_NAMESPACE(s) = STRUCT_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_TYPEDEF;
- SYMBOL_VALUE(s) = 0;
- add_symbol(s, top_stack->cur_block);
- /* If this type was expected, use its partial definition */
- if (pend) {
- t = is_pending_symbol(cur_fdr, sh)->t;
- } else {
- /* Uhmm, can`t decide yet. Smash later */
- t = new_type(sh->iss);
- TYPE_CODE(t) = TYPE_CODE_UNDEF;
- add_pending(cur_fdr, sh, t);
- }
- SYMBOL_TYPE(s) = t;
- /* make this the current type */
- top_stack->cur_type = t;
- TYPE_LENGTH(t) = sh->value;
- /* Mark that symbol has a type, and say which one */
- sh->value = (long) t;
- } else {
- /* beginnning of (code) block. Value of symbol
- is the displacement from procedure start */
- b = new_block(top_stack->maxsyms);
- BLOCK_START(b) = sh->value + top_stack->procadr;
- BLOCK_SUPERBLOCK(b) = top_stack->cur_block;
- top_stack->cur_block = b;
- add_block(b, top_stack->cur_st);
- }
- break;
-
- case stEnd: /* end (of anything) */
- if (sh->sc == scInfo) {
- /* Finished with type */
- top_stack->cur_type = 0;
- } else if (sh->sc == scText &&
- (top_stack->blocktype == stProc ||
- top_stack->blocktype == stStaticProc)) {
- /* Finished with procedure */
- struct blockvector *bv = BLOCKVECTOR(top_stack->cur_st);
- struct block *b;
- int i;
-
- BLOCK_END(top_stack->cur_block) += sh->value; /* size */
- got_numargs(top_stack->procadr, top_stack->numargs);
- /* Reallocate symbols, saving memory */
- b = shrink_block(top_stack->cur_block, top_stack->cur_st);
-
- /* f77 emits proc-level with address bounds==[0,0],
- So look for such child blocks, and patch them. */
- for (i = 0; i < BLOCKVECTOR_NBLOCKS(bv); i++) {
- struct block *b_bad = BLOCKVECTOR_BLOCK(bv,i);
- if (BLOCK_SUPERBLOCK(b_bad) == b
- && BLOCK_START(b_bad) == top_stack->procadr
- && BLOCK_END(b_bad) == top_stack->procadr) {
- BLOCK_START(b_bad) = BLOCK_START(b);
- BLOCK_END(b_bad) = BLOCK_END(b);
- }
- }
- if (entry_point < BLOCK_END(b)
- && entry_point >= BLOCK_START(b)) {
- startup_file_start = BLOCK_START(b);
- startup_file_end = BLOCK_END(b);
- }
- } else if (sh->sc == scText && top_stack->blocktype == stBlock) {
- /* End of (code) block. The value of the symbol
- is the displacement from the procedure`s start
- address of the end of this block. */
- BLOCK_END(top_stack->cur_block) = sh->value + top_stack->procadr;
- (void) shrink_block(top_stack->cur_block, top_stack->cur_st);
- }
- pop_parse_stack(); /* restore previous lexical context */
- break;
-
- case stMember: /* member of struct/union/enum.. */
- f = new_field(top_stack->cur_type, sh->iss);
- f->bitpos = sh->value;
- f->type = parse_type(ax + sh->index, sh, &f->bitsize);
- break;
-
- case stTypedef: /* type definition */
- s = new_symbol(sh->iss);
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_TYPEDEF;
- SYMBOL_BLOCK_VALUE(s) = top_stack->cur_block;
- add_symbol(s, top_stack->cur_block);
- SYMBOL_TYPE(s) = parse_type(ax + sh->index, sh, 0);
- sh->value = (long) SYMBOL_TYPE(s);
- break;
-
- case stFile: /* file name */
- push_parse_stack();
- top_stack->blocktype = sh->st;
- break;
-
- /* I`ve never seen these for C */
- case stRegReloc:
- break; /* register relocation */
- case stForward:
- break; /* forwarding address */
- case stConstant:
- break; /* constant */
- default:
- error("Unknown symbol type %x.", sh->st);
- }
- sh->st = stParsed;
-}
-
-/* Parse the type information provided in the AX entries for
- the symbol SH. Return the bitfield size in BS, in case. */
-
-static struct type *parse_type(ax, sh, bs)
- AUXU *ax;
- SYMR *sh;
- int *bs;
-{
- /* Null entries in this map are treated specially */
- static struct type **map_bt[] =
- {
- &builtin_type_void, /* btNil */
- 0, /* btAdr */
- &builtin_type_char, /* btChar */
- &builtin_type_unsigned_char, /* btUChar */
- &builtin_type_short, /* btShort */
- &builtin_type_unsigned_short, /* btUShort */
- &builtin_type_int, /* btInt */
- &builtin_type_unsigned_int, /* btUInt */
- &builtin_type_long, /* btLong */
- &builtin_type_unsigned_long, /* btULong */
- &builtin_type_float, /* btFloat */
- &builtin_type_double, /* btDouble */
- 0, /* btStruct */
- 0, /* btUnion */
- 0, /* btEnum */
- 0, /* btTypedef */
- 0, /* btRange */
- 0, /* btSet */
- &builtin_type_complex, /* btComplex */
- &builtin_type_double_complex, /* btDComplex */
- 0, /* btIndirect */
- &builtin_type_fixed_dec, /* btFixedDec */
- &builtin_type_float_dec, /* btFloatDec */
- &builtin_type_string, /* btString */
- 0, /* btBit */
- 0, /* btPicture */
- &builtin_type_void, /* btVoid */
- };
-
- TIR *t;
- struct type *tp = 0, *tp1;
- char *fmt = "%s";
-
- /* Procedures start off by one */
- if (sh->st == stProc || sh->st == stStaticProc)
- ax++;
-
- /* Undefined ? Should not happen */
- if (ax->rndx.rfd == 0xfff) {
- return builtin_type_void;
- }
-
- /* Use aux as a type information record, map its basic type */
- t = &ax->ti;
- if (t->bt > 26 || t->bt == btPicture) {
- printf_filtered("Internal: cannot map MIPS basic type x%x\n", t->bt);
- return builtin_type_int;
- }
- if (map_bt[t->bt])
- tp = *map_bt[t->bt];
- else {
- /* Cannot use builtin types, use templates */
- tp = make_type(TYPE_CODE_VOID, 0, 0, 0);
- switch (t->bt) {
- case btAdr:
- *tp = *builtin_type_ptr;
- break;
- case btStruct:
- *tp = *builtin_type_struct;
- fmt = "struct %s";
- break;
- case btUnion:
- *tp = *builtin_type_union;
- fmt = "union %s";
- break;
- case btEnum:
- *tp = *builtin_type_enum;
- fmt = "enum %s";
- break;
- case btRange:
- *tp = *builtin_type_range;
- break;
- case btSet:
- *tp = *builtin_type_set;
- fmt = "set %s";
- break;
- }
- }
-
- /* Move on to next aux */
- ax++;
- if (t->continued) {
- /* This is the way it would work if the compiler worked */
- register TIR *t1 = t;
- while (t1->continued)
- ax++;
- }
-
- /* For bitfields all we need is the width */
- if (t->fBitfield) {
- *bs = ax->width;
- return tp;
- }
-
- /* All these types really point to some (common) MIPS type
- definition, and only the type-qualifiers fully identify
- them. We`ll make the same effort at sharing */
- if (t->bt == btIndirect ||
- t->bt == btStruct ||
- t->bt == btUnion ||
- t->bt == btEnum ||
- t->bt == btTypedef ||
- t->bt == btRange ||
- t->bt == btSet) {
- char name[256], *pn;
-
- /* Try to cross reference this type */
- tp1 = tp;
- ax += cross_ref(ax, &tp1, &pn);
- /* SOMEONE OUGHT TO FIX DBXREAD TO DROP "STRUCT" */
- sprintf(name, fmt, pn);
-
- /* reading .o file ? */
- if (UNSAFE_DATA_ADDR(tp1))
- tp1 = tp;
- if (TYPE_CODE(tp1) == TYPE_CODE_UNDEF) {
- /*
- * Type was incompletely defined, now we know.
- */
- TYPE_CODE(tp1) = TYPE_CODE(tp);
- TYPE_NAME(tp1) = obsavestring(name, strlen(name));
- if (TYPE_CODE(tp1) == TYPE_CODE_ENUM) {
- int i;
-
- for (i = 0; i < TYPE_NFIELDS(tp1); i++)
- make_enum_constant(&TYPE_FIELD(tp1,i), tp1);
- }
- }
- if (tp1 != tp) {
- /* found as cross ref, rid of our template */
- if ((TYPE_FLAGS(tp) & TYPE_FLAG_PERM) == 0)
- free(tp);
- tp = tp1;
- /* stupid idea of prepending "struct" to type names */
- if (t->bt == btStruct && !index(TYPE_NAME(tp), ' ')) {
- sprintf(name, fmt, TYPE_NAME(tp));
- TYPE_NAME(tp) = obsavestring(name, strlen(name));
- }
- } else
- TYPE_NAME(tp) = savestring(name, strlen(name));
- }
-
- /* Deal with range types */
- if (t->bt == btRange) {
- struct field *f;
-
- f = new_field(tp, "Low");
- f->bitpos = ax->dnLow;
- ax++;
- f = new_field(tp, "High");
- f->bitpos = ax->dnHigh;
- ax++;
- }
-
- /* Parse all the type qualifiers now. If there are more
- than 6 the game will continue in the next aux */
-
-#define PARSE_TQ(tq) \
- if (t->tq != tqNil) ax += upgrade_type(&tp, t->tq, ax, sh);
-
-again: PARSE_TQ(tq0);
- PARSE_TQ(tq1);
- PARSE_TQ(tq2);
- PARSE_TQ(tq3);
- PARSE_TQ(tq4);
- PARSE_TQ(tq5);
-#undef PARSE_TQ
-
- if (t->continued) {
- t++;
- goto again;
- }
- return tp;
-}
-
-/* Make up a complex type from a basic one. Type is passed by
- reference in TPP and side-effected as necessary. The type
- qualifier TQ says how to handle the aux symbols at AX for
- the symbol SX we are currently analyzing.
- Returns the number of aux symbols we parsed. */
-
-static
-upgrade_type(tpp, tq, ax, sh)
- struct type **tpp;
- AUXU *ax;
- SYMR *sh;
-{
- int off = 0;
- int ret = 0;
- struct type *t;
-
- if (tq == tqPtr) {
- t = lookup_pointer_type (*tpp);
- } else if (tq == tqProc) {
- t = lookup_function_type (*tpp);
- } else if (tq == tqArray) {
- int rf, id;
- FDR *fh;
- struct field *f;
- SYMR ss;
-
- t = make_type(TYPE_CODE_ARRAY, 0, 0, 0);
- TYPE_TARGET_TYPE(t) = *tpp;
-
- /* Pointer to domain type (type of index) */
- id = ax->rndx.index;
- if ((rf = ax->rndx.rfd) == 0xfff)
- rf = (++ax)->isym, off++;
-
- fh = get_rfd(cur_fd, rf);
- f = new_field(t, 0);
- bzero(&ss, sizeof ss);
-/* XXX */ f->type = parse_type(fh->iauxBase + id * sizeof(AUXU),
- &ss, &f->bitsize);
-
- /*
- * This seems to be a pointer to the end of the Block defining
- * the type. Why it is here is magic for me, and I have no
- * good use for it anyways.
- */
- if (off == 0) {
- off++;
- id = (++ax)->rndx.index;
- if ((rf = ax->rndx.rfd) == 0xfff)
- rf = (++ax)->isym, off++;
- }
- f->bitpos = (++ax)->dnLow; /* ?? */
- f->bitsize = (++ax)->dnHigh; /* ?? */
- rf = (++ax)->width - 1; /* bit alignment */
- id = TYPE_LENGTH(TYPE_TARGET_TYPE(t)) << 3; /* bitsize */
-
- if (id == 0) {
- /* Most likely an undefined type */
- id = rf + 1;
- TYPE_LENGTH(TYPE_TARGET_TYPE(t)) = id >> 3;
- }
- TYPE_LENGTH(t) = (f->bitsize < 0) ? 0 :
- (f->bitsize - f->bitpos + 1) * (id >> 3);
- ret = 4 + off;
- } else {
- if (tq != tqVol)
- printf_filtered("Internal: unknown type qualifier %x\n", tq);
- return ret;
- }
-
- *tpp = t;
- return ret;
-}
-
-
-/* Parse a procedure descriptor record PR. Note that the procedure
- is parsed _after_ the local symbols, now we just make up the
- extra information we need into a special symbol that we insert
- in the procedure's main block. Note also that images that
- have been partially stripped (ld -x) have been deprived
- of local symbols, and we have to cope with them here.
- The procedure's code ends at BOUND */
-
-static
-parse_procedure(pr, bound)
- PDR *pr;
-{
- struct symbol *s, *i;
- SYMR *sh = (SYMR*)pr->isym;
- struct block *b;
- struct mips_extra_func_info *e;
- char name[100];
- char *sh_name;
-
- /* Reuse the MIPS record */
- e = (struct mips_extra_func_info *) pr;
- e->numargs = lookup_numargs(pr->adr);
-
- /* Make up our special symbol */
- i = new_symbol(".gdbinfo.");
- SYMBOL_VALUE(i) = (int)e;
- SYMBOL_NAMESPACE(i) = LABEL_NAMESPACE;
- SYMBOL_CLASS(i) = LOC_CONST;
- SYMBOL_TYPE(i) = builtin_type_void;
-
- /* Make up a name for static procedures. Sigh. */
- if (sh == (SYMR*)-1) {
- sprintf(name,".static_procedure@%x",pr->adr);
- sh_name = savestring(name, strlen(name));
- s = NULL;
- }
- else {
- sh_name = (char*)sh->iss;
- s = mylookup_symbol(sh_name, top_stack->cur_block,
- VAR_NAMESPACE, LOC_BLOCK);
- }
- if (s != 0) {
- b = SYMBOL_BLOCK_VALUE(s);
- } else {
- s = new_symbol(sh_name);
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_BLOCK;
- /* Donno its type, hope int is ok */
- SYMBOL_TYPE(s) = lookup_function_type (builtin_type_int);
- add_symbol(s, top_stack->cur_block);
- /* Wont have symbols for this one */
- b = new_block(2);
- SYMBOL_BLOCK_VALUE(s) = b;
- BLOCK_FUNCTION(b) = s;
- BLOCK_START(b) = pr->adr;
- BLOCK_END(b) = bound;
- BLOCK_SUPERBLOCK(b) = top_stack->cur_block;
- add_block(b, top_stack->cur_st);
- }
- e->isym = (long)s;
- add_symbol(i,b);
-}
-
-/* Parse the external symbol ES. Just call parse_symbol() after
- making sure we know where the aux are for it. For procedures,
- parsing of the PDRs has already provided all the needed
- information, we only parse them if SKIP_PROCEDURES is false,
- and only if this causes no symbol duplication */
-
-static
-parse_external(es, skip_procedures)
- EXTR *es;
-{
- AUXU *ax;
-
- if (es->ifd != ifdNil) {
- cur_fd = es->ifd;
- cur_fdr = (FDR*)(cur_hdr->cbFdOffset) + cur_fd;
- ax = (AUXU*)cur_fdr->iauxBase;
- } else {
- cur_fdr = (FDR*)(cur_hdr->cbFdOffset);
- ax = 0;
- }
- top_stack->cur_st = cur_stab;
- top_stack->cur_block = BLOCKVECTOR_BLOCK(BLOCKVECTOR(top_stack->cur_st),
- GLOBAL_BLOCK);
-
- /* Reading .o files */
- if (es->asym.sc == scUndefined || es->asym.sc == scNil) {
- char *what;
- switch (es->asym.st) {
- case stStaticProc:
- case stProc: what = "Procedure"; n_undef_procs++; break;
- case stGlobal: what = "Variable"; n_undef_vars++; break;
- case stLabel: what = "Label"; n_undef_labels++; break;
- default : what = "Symbol"; break;
- }
- n_undef_symbols++;
- if (info_verbose)
- printf_filtered("Warning: %s %s is undefined (in %s)\n", what,
- es->asym.iss, fdr_name(cur_fdr->rss));
- return;
- }
-
- switch (es->asym.st) {
- case stProc:
- /* If we have full symbols we do not need more */
- if (skip_procedures)
- return;
- if (mylookup_symbol (es->asym.iss, top_stack->cur_block,
- VAR_NAMESPACE, LOC_BLOCK))
- break;
- /* fall through */
- case stGlobal:
- case stLabel:
- /*
- * Note that the case of a symbol with indexNil
- * must be handled anyways by parse_symbol().
- */
- parse_symbol(&es->asym, ax);
- break;
- default:
- break;
- }
-}
-
-/* Parse the line number info for file descriptor FH into
- GDB's linetable LT. MIPS' encoding requires a little bit
- of magic to get things out. Note also that MIPS' line
- numbers can go back and forth, apparently we can live
- with that and do not need to reorder our linetables */
-
-static
-parse_lines(fh, lt)
- FDR *fh;
- struct linetable *lt;
-{
- char *base = (char*)fh->cbLineOffset;
- int i, j, k;
- int delta, count, lineno = 0;
- PDR *pr;
-
- if (base == 0)
- return;
-
- /* Scan by procedure descriptors */
- i = 0; j = 0, k = 0;
- for (pr = (PDR*)IPDFIRST(cur_hdr,fh); j < fh->cpd; j++, pr++) {
- int l, halt;
-
- /* No code for this one */
- if (pr->iline == ilineNil ||
- pr->lnLow == -1 || pr->lnHigh == -1)
- continue;
- /*
- * Aurgh! To know where to stop expanding we
- * must look-ahead.
- */
- for (l = 1; l < (fh->cpd - j); l++)
- if (pr[l].iline != -1)
- break;
- if (l == (fh->cpd - j))
- halt = fh->cline;
- else
- halt = pr[l].iline;
- /*
- * When procedures are moved around the linenumbers
- * are attributed to the next procedure up
- */
- if (pr->iline >= halt) continue;
-
- base = (char*)pr->cbLineOffset;
- l = pr->adr >> 2; /* in words */
- halt += (pr->adr >> 2) - pr->iline;
- for (lineno = pr->lnLow; l < halt;) {
- count = *base & 0x0f;
- delta = *base++ >> 4;
- if (delta == -8) {
- delta = (base[0] << 8) | (base[1] & 0xff);
- base += 2;
- }
- lineno += delta;/* first delta is 0 */
- k = add_line(lt, lineno, l, k);
- l += count + 1;
- }
- }
-}
-
-
-/* Parse the symbols of the file described by FH, whose index is F_IDX.
- BOUND is the highest core address of this file's procedures */
-
-static
-parse_one_file(fh, f_idx, bound)
- FDR *fh;
-{
- register int s_idx;
- SYMR *sh;
- PDR *pr;
-
- /* Parse local symbols first */
-
- for (s_idx = 0; s_idx < fh->csym; s_idx++) {
- sh = (SYMR *) (fh->isymBase) + s_idx;
- cur_sdx = s_idx;
- parse_symbol(sh, fh->iauxBase);
- }
-
- /* Procedures next, note we need to look-ahead to
- find out where the procedure's code ends */
-
- for (s_idx = 0; s_idx < fh->cpd-1; s_idx++) {
- pr = (PDR *) (IPDFIRST(cur_hdr, fh)) + s_idx;
- parse_procedure(pr, pr[1].adr); /* next proc up */
- }
- if (fh->cpd) {
- pr = (PDR *) (IPDFIRST(cur_hdr, fh)) + s_idx;
- parse_procedure(pr, bound); /* next file up */
- }
-
- /* Linenumbers. At the end, check if we can save memory */
- parse_lines(fh, LINETABLE(cur_stab));
- if (LINETABLE(cur_stab)->nitems < fh->cline)
- shrink_linetable(cur_stab);
-}
+ /* If the entry_file bounds are still unknown after processing the
+ partial symbols, then try to set them from the minimal symbols
+ surrounding the entry_point. */
+ if (mainline
+ && objfile->ei.entry_point != INVALID_ENTRY_POINT
+ && objfile->ei.entry_file_lowpc == INVALID_ENTRY_LOWPC)
+ {
+ struct minimal_symbol *m;
-/* Master parsing procedure. Parses the symtab described by the
- symbolic header HDR. If INCREMENTAL is true we are called
- by add-file and must preserve the old symtabs */
-static
-parse_partial_symbols(hdr, incremental)
- HDRR *hdr;
-{
- int f_idx, s_idx, h_max;
- CORE_ADDR dummy, *prevhigh;
- /* Running pointers */
- FDR *fh;
- RFDT *rh;
- register EXTR *esh;
-
- /*
- * Big plan:
- *
- * Only parse the External symbols, and the Relative FDR.
- * Fixup enough of the loader symtab to be able to use it.
- * Allocate space only for the file`s portions we need to
- * look at. (XXX)
- */
-
- cur_hdr = hdr;
- max_gdbinfo = 0;
- max_glevel = MIN_GLEVEL;
-
- /* Allocate the map FDR -> PST.
- Minor hack: -O3 images might claim some global data belongs
- to FDR -1. We`ll go along with that */
- fdr_to_pst = (struct pst_map *)xzalloc((hdr->ifdMax+1) * sizeof *fdr_to_pst);
- fdr_to_pst++;
+ m = lookup_minimal_symbol_by_pc (objfile->ei.entry_point);
+ if (m && SYMBOL_NAME (m + 1))
{
- struct partial_symtab * pst = new_psymtab("");
- fdr_to_pst[-1].pst = pst;
- pst->ldsymoff = -1;
- }
-
- /* Now scan the FDRs, mostly for dependencies */
- for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
- (void) parse_fdr(f_idx, 1);
-
- /* Take a good guess at how many symbols we might ever need */
- h_max = hdr->iextMax;
-
- /* Parse externals: two passes because they can be ordered
- in any way */
-
- /* Pass 1: Presize and partition the list */
- for (s_idx = 0; s_idx < hdr->iextMax; s_idx++) {
- esh = (EXTR *) (hdr->cbExtOffset) + s_idx;
- fdr_to_pst[esh->ifd].n_globals++;
- }
-
- if (global_psymbols.list) {
- global_psymbols.list = (struct partial_symbol *)
- xrealloc( global_psymbols.list, (h_max +
- global_psymbols.size) * sizeof(struct partial_symbol));
- global_psymbols.next = global_psymbols.list + global_psymbols.size;
- global_psymbols.size += h_max;
- } else {
- global_psymbols.list = (struct partial_symbol *)
- xmalloc( h_max * sizeof(struct partial_symbol));
- global_psymbols.size = h_max;
- global_psymbols.next = global_psymbols.list;
- }
-
- s_idx = global_psymbols.next - global_psymbols.list;
- for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++) {
- fdr_to_pst[f_idx].pst->globals_offset = s_idx;
- s_idx += fdr_to_pst[f_idx].n_globals;
- }
-
- /* Pass 2: fill in symbols */
- for (s_idx = 0; s_idx < hdr->iextMax; s_idx++) {
- register struct partial_symbol *p;
- enum misc_function_type misc_type = mf_text;
- esh = (EXTR *) (hdr->cbExtOffset) + s_idx;
-
- if (esh->asym.sc == scUndefined || esh->asym.sc == scNil)
- continue;
- p = new_psymbol(&global_psymbols, esh->asym.iss, esh->ifd);
- SYMBOL_VALUE(p) = esh->asym.value;
- SYMBOL_NAMESPACE(p) = VAR_NAMESPACE;
-
- switch (esh->asym.st) {
- case stProc:
- SYMBOL_CLASS(p) = LOC_BLOCK;
- break;
- case stGlobal:
- SYMBOL_CLASS(p) = LOC_STATIC;
- misc_type = mf_data;
- break;
- case stLabel:
- SYMBOL_CLASS(p) = LOC_LABEL;
- break;
- default:
- misc_type = mf_unknown;
- complain (&unknown_ext_complaint, SYMBOL_NAME(p));
- }
- prim_record_misc_function (SYMBOL_NAME(p),
- SYMBOL_VALUE(p),
- misc_type);
- }
-
-
- /* The array (of lists) of globals must be sorted.
- Take care, since we are at it, of pst->texthigh.
-
- NOTE: The way we handle textlow/high is incorrect, but good
- enough for a first approximation. The case we fail is on a
- file "foo.c" that looks like
- proc1() {...}
- #include "bar.c" -- this contains proc2()
- proc3() {...}
- where proc3() is attributed to bar.c. But since this is a
- dependent file it will cause loading of foo.c as well, so
- everything will be fine at the end. */
-
- prevhigh = &dummy;
- for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++) {
- struct partial_symtab *pst = fdr_to_pst[f_idx].pst;
- if (pst->n_global_syms > 1)
- qsort (global_psymbols.list + pst->globals_offset,
- pst->n_global_syms, sizeof (struct partial_symbol),
- compare_psymbols);
- if (pst->textlow) {
- *prevhigh = pst->textlow;
- prevhigh = &pst->texthigh;
- }
- }
-
- /* Mark the last code address, and remember it for later */
- *prevhigh = END_OF_TEXT_SEGMENT(filhdr);
- hdr->cbDnOffset = END_OF_TEXT_SEGMENT(filhdr);
-
- reorder_psymtabs();
- free(&fdr_to_pst[-1]);
- fdr_to_pst = 0;
-}
-
-
-/* Do the initial analisys of the F_IDX-th file descriptor.
- Allocates a partial symtab for it, and builds the list
- of dependent files by recursion. LEV says at which level
- of recursion we are called (to pretty up debug traces) */
-
-static struct partial_symtab *
-parse_fdr(f_idx, lev)
- int f_idx;
-{
- register FDR *fh;
- register struct partial_symtab *pst;
- int s_idx, s_id0;
-
- fh = (FDR *) (cur_hdr->cbFdOffset) + f_idx;
-
- /* Use this to indicate into which symtab this file was parsed */
- if (fh->ioptBase)
- return (struct partial_symtab *) fh->ioptBase;
-
- /* Debuggability level */
- if (compare_glevel(max_glevel, fh->glevel) < 0)
- max_glevel = fh->glevel;
-
- /* Make a new partial_symtab */
- pst = new_psymtab(fh->rss);
- if (fh->cpd == 0){
- pst->textlow = 0;
- pst->texthigh = 0;
- } else {
- pst->textlow = fh->adr;
- pst->texthigh = fh->cpd; /* To be fixed later */
- }
- /* Reverse mapping PST -> FDR */
- pst->ldsymoff = f_idx;
-
- fdr_to_pst[f_idx].pst = pst;
- fh->ioptBase = (int)pst;
-
- /* Analyze its dependencies */
- if (fh->crfd <= 1)
- return pst;
-
- s_id0 = 0;
- if (fh->cpd == 0) { /* If there are no functions defined here ... */
- /* ...then presumably a .h file: drop reverse depends .h->.c */
- for (; s_id0 < fh->crfd; s_id0++) {
- RFDT *rh = (RFDT *) (fh->rfdBase) + s_id0;
- if (*rh == f_idx) {
- s_id0++; /* Skip self-dependency */
- break;
- }
- }
- }
- pst->number_of_dependencies = fh->crfd - s_id0;
- pst->dependencies = (struct partial_symtab **)
- obstack_alloc (psymbol_obstack,
- pst->number_of_dependencies * sizeof(char*));
- for (s_idx = s_id0; s_idx < fh->crfd; s_idx++) {
- RFDT *rh = (RFDT *) (fh->rfdBase) + s_idx;
-
- pst->dependencies[s_idx-s_id0] = parse_fdr(*rh, lev+1);
-
+ objfile->ei.entry_file_lowpc = SYMBOL_VALUE_ADDRESS (m);
+ objfile->ei.entry_file_highpc = SYMBOL_VALUE_ADDRESS (m + 1);
}
+ }
- return pst;
+ do_cleanups (back_to);
}
-
-/* Ancillary function to psymtab_to_symtab(). Does all the work
- for turning the partial symtab PST into a symtab, recurring
- first on all dependent psymtabs */
+/* Perform any local cleanups required when we are done with a
+ particular objfile. */
static void
-psymtab_to_symtab_1(pst)
- struct partial_symtab *pst;
-{
- int i, f_max;
- struct symtab *st;
- FDR *fh;
-
- if (pst->readin)
- return;
- pst->readin = 1;
-
- pending_list = (struct pending **) cur_hdr->cbOptOffset;
- if (pending_list == 0) {
- pending_list = (struct pending **)
- xzalloc(cur_hdr->ifdMax * sizeof(struct pending *));
- cur_hdr->cbOptOffset = (int)pending_list;
- }
-
- /* How many symbols will we need */
- f_max = pst->n_global_syms + pst->n_static_syms;
- if (pst->ldsymoff == -1) {
- fh = 0;
- st = new_symtab( "unknown", f_max, 0);
- } else {
- fh = (FDR *) (cur_hdr->cbFdOffset) + pst->ldsymoff;
- f_max += fh->csym + fh->cpd;
- st = new_symtab(pst->filename, 2 * f_max, 2 * fh->cline);
- }
-
- /*
- * Read in all partial symbtabs on which this one is dependent.
- * NOTE that we do have circular dependencies, sigh.
- */
- for (i = 0; i < pst->number_of_dependencies; i++)
- if (!pst->dependencies[i]->readin) {
- /*
- * DO NOT inform about additional files that need to
- * be read in, it would only annoy the user.
- */
- psymtab_to_symtab_1(pst->dependencies[i]);
- }
-
- /* Now read the symbols for this symtab */
-
- cur_fd = pst->ldsymoff;
- cur_fdr = fh;
- cur_stab = st;
-
- /* Get a new lexical context */
-
- push_parse_stack();
- top_stack->cur_st = cur_stab;
- top_stack->cur_block = BLOCKVECTOR_BLOCK(BLOCKVECTOR(cur_stab),
- GLOBAL_BLOCK);
- BLOCK_START(top_stack->cur_block) = fh ? fh->adr : 0;
- BLOCK_END(top_stack->cur_block) = 0;
- top_stack->blocktype = stFile;
- top_stack->maxsyms = f_max;
- top_stack->cur_type = 0;
- top_stack->procadr = 0;
- top_stack->numargs = 0;
-
- /* Parse locals and procedures */
- if (fh)
- parse_one_file(fh, cur_fd, (cur_fd == (cur_hdr->ifdMax - 1)) ?
- cur_hdr->cbDnOffset : fh[1].adr);
-
- /* .. and our share of externals.
- XXX use the global list to speed up things here. how ? */
- top_stack->blocktype = stFile;
- top_stack->maxsyms = cur_hdr->isymMax + cur_hdr->ipdMax + cur_hdr->iextMax;
- for (i = 0; i < cur_hdr->iextMax; i++) {
- register EXTR *esh = (EXTR *) (cur_hdr->cbExtOffset) + i;
- if (esh->ifd == cur_fd)
- parse_external(esh, 1);
- }
-
- /* If there are undefined, tell the user */
- if (n_undef_symbols) {
- printf_filtered("File %s contains %d unresolved references:",
- st->filename, n_undef_symbols);
- printf_filtered("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n",
- n_undef_vars, n_undef_procs, n_undef_labels);
- n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0;
- }
-
- pop_parse_stack();
-
- /*
- * Sort the symbol table now, we are done adding symbols to it.
- */
- sort_symtab_syms(st);
-}
-
-
-
-\f
-/* Ancillary parsing procedures. */
-
-/* Lookup the type at relative index RN. Return it in TPP
- if found and in any event come up with its name PNAME.
- Return value says how many aux symbols we ate */
-
-static
-cross_ref(rn, tpp, pname)
- RNDXR *rn;
- struct type **tpp;
- char **pname;
-{
- unsigned rf;
-
- /* Escape index means 'the next one' */
- if (rn->rfd == 0xfff)
- rf = *(unsigned *) (rn + 1);
- else
- rf = rn->rfd;
-
- if (rf == -1) {
- /* Ooops */
- *pname = "<undefined>";
- } else {
- /*
- * Find the relative file descriptor and the symbol in it
- */
- FDR *fh = get_rfd(cur_fd, rf);
- SYMR *sh;
- struct type *t;
-
- /*
- * If we have processed this symbol then we left a forwarding
- * pointer to the corresponding GDB symbol. If not, we`ll put
- * it in a list of pending symbols, to be processed later when
- * the file f will be. In any event, we collect the name for
- * the type here. Which is why we made a first pass at
- * strings.
- */
- sh = (SYMR *) (fh->isymBase) + rn->index;
-
- /* Careful, we might be looking at .o files */
- *pname = (UNSAFE_DATA_ADDR(sh->iss)) ? "<undefined>" :
- (char *) sh->iss;
-
- /* Have we parsed it ? */
- if ((!UNSAFE_DATA_ADDR(sh->value)) && (sh->st == stParsed)) {
- t = (struct type *) sh->value;
- *tpp = t;
- } else {
- struct pending *p;
-
- /* Avoid duplicates */
- p = is_pending_symbol(fh, sh);
-
- if (p)
- *tpp = p->t;
- else
- add_pending(fh, sh, *tpp);
- }
- }
- return (rn->rfd == 0xfff);
-}
-
-
-/* Quick&dirty lookup procedure, to avoid the MI ones that require
- keeping the symtab sorted */
-
-static struct symbol *
-mylookup_symbol (name, block, namespace, class)
- char *name;
- register struct block *block;
- enum namespace namespace;
- enum address_class class;
-{
- register int bot, top, inc;
- register struct symbol *sym;
-
- bot = 0;
- top = BLOCK_NSYMS(block);
- inc = name[0];
- while (bot < top) {
- sym = BLOCK_SYM(block, bot);
- if (SYMBOL_NAME(sym)[0] == inc
- && SYMBOL_NAMESPACE(sym) == namespace
- && SYMBOL_CLASS(sym) == class
- && !strcmp(SYMBOL_NAME(sym), name))
- return sym;
- bot++;
- }
- if (block = BLOCK_SUPERBLOCK (block))
- return mylookup_symbol (name, block, namespace, class);
- return 0;
-}
-
-
-/* Add a new symbol S to a block B */
-
-static
-add_symbol(s,b)
- struct symbol *s;
- struct block *b;
-{
- BLOCK_SYM(b,BLOCK_NSYMS(b)++) = s;
- if (b == top_stack->cur_block &&
- BLOCK_NSYMS(b) > top_stack->maxsyms)
- printf_filtered("Internal: block at @%x overfilled (by %d)\n",
- b, BLOCK_NSYMS(b) - top_stack->maxsyms);
-}
-
-/* Add a new block B to a symtab S */
-
-static
-add_block(b,s)
- struct block *b;
- struct symtab *s;
-{
- struct blockvector *bv = BLOCKVECTOR(s);
-
- bv = (struct blockvector *)xrealloc(bv, sizeof(struct blockvector) +
- BLOCKVECTOR_NBLOCKS(bv) * sizeof(bv->block));
- if (bv != BLOCKVECTOR(s))
- BLOCKVECTOR(s) = bv;
-
- BLOCKVECTOR_BLOCK(bv, BLOCKVECTOR_NBLOCKS(bv)++) = b;
-}
-
-/* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
- MIPS' linenumber encoding might need more than one byte
- to describe it, LAST is used to detect these continuation lines */
-
-static
-add_line(lt, lineno, adr, last)
- struct linetable *lt;
- CORE_ADDR adr;
-{
- if (last == 0)
- last = -2; /* make sure we record first line */
-
- if (last == lineno) /* skip continuation lines */
- return lineno;
-
- lt->item[lt->nitems].line = lineno;
- lt->item[lt->nitems++].pc = adr << 2;
- return lineno;
-}
-
-
-\f
-/* Comparison functions, used when sorting things */
-
-/* Symtabs must be ordered viz the code segments they cover */
-
-static int
-compare_symtabs( s1, s2)
- struct symtab **s1, **s2;
-{
- /* "most specific" first */
-
- register struct block *b1, *b2;
- b1 = BLOCKVECTOR_BLOCK(BLOCKVECTOR(*s1),GLOBAL_BLOCK);
- b2 = BLOCKVECTOR_BLOCK(BLOCKVECTOR(*s2),GLOBAL_BLOCK);
- if (BLOCK_END(b1) == BLOCK_END(b2))
- return BLOCK_START(b1) - BLOCK_START(b2);
- return BLOCK_END(b1) - BLOCK_END(b2);
-}
-
-
-/* Partial Symtabs, same */
-
-static int
-compare_psymtabs( s1, s2)
- struct partial_symtab **s1, **s2;
-{
- /* Perf twist: put the ones with no code at the end */
-
- register int a = (*s1)->textlow;
- register int b = (*s2)->textlow;
- if (a == 0)
- return b;
- if (b == 0)
- return -a;
- return a - b;
-}
-
-
-/* Partial symbols are compared lexicog by their print names */
-
-static int
-compare_psymbols (s1, s2)
- register struct partial_symbol *s1, *s2;
-{
- register char
- *st1 = SYMBOL_NAME(s1),
- *st2 = SYMBOL_NAME(s2);
-
- return (st1[0] - st2[0] ? st1[0] - st2[0] :
- strcmp(st1 + 1, st2 + 1));
-}
-
-/* Blocks with a smaller low bound should come first */
-
-static int compare_blocks(b1,b2)
- struct block **b1, **b2;
-{
- register int addr_diff;
-
- addr_diff = (BLOCK_START((*b1))) - (BLOCK_START((*b2)));
- if (addr_diff == 0)
- return (BLOCK_END((*b1))) - (BLOCK_END((*b2)));
- return addr_diff;
-}
-
-\f
-/* Sorting and reordering procedures */
-
-/* Sort the blocks of a symtab S.
- Reorder the blocks in the blockvector by code-address,
- as required by some MI search routines */
+mipscoff_symfile_finish (objfile)
+ struct objfile *objfile;
+{
+}
+
+/* Alpha OSF/1 encapsulates the dynamic symbols in ELF format in a
+ standard coff section. The ELF format for the symbols differs from
+ the format defined in elf/external.h. It seems that a normal ELF 32 bit
+ format is used, and the representation only changes because longs are
+ 64 bit on the alpha. In addition, the handling of text/data section
+ indices for symbols is different from the ELF ABI.
+ As the BFD linker currently does not support dynamic linking on the alpha,
+ there seems to be no reason to pollute BFD with another mixture of object
+ file formats for now. */
+
+/* Format of an alpha external ELF symbol. */
+
+typedef struct {
+ unsigned char st_name[4]; /* Symbol name, index in string tbl */
+ unsigned char st_pad[4]; /* Pad to long word boundary */
+ unsigned char st_value[8]; /* Value of the symbol */
+ unsigned char st_size[4]; /* Associated symbol size */
+ unsigned char st_info[1]; /* Type and binding attributes */
+ unsigned char st_other[1]; /* No defined meaning, 0 */
+ unsigned char st_shndx[2]; /* Associated section index */
+} Elfalpha_External_Sym;
+
+/* Format of an alpha external ELF dynamic info structure. */
+
+typedef struct {
+ unsigned char d_tag[4]; /* Tag */
+ unsigned char d_pad[4]; /* Pad to long word boundary */
+ union {
+ unsigned char d_ptr[8]; /* Pointer value */
+ unsigned char d_val[4]; /* Integer value */
+ } d_un;
+} Elfalpha_External_Dyn;
+
+/* Struct to obtain the section pointers for alpha dynamic symbol info. */
+
+struct alphacoff_dynsecinfo {
+ asection *sym_sect; /* Section pointer for .dynsym section */
+ asection *str_sect; /* Section pointer for .dynstr section */
+ asection *dyninfo_sect; /* Section pointer for .dynamic section */
+ asection *got_sect; /* Section pointer for .got section */
+};
static void
-sort_blocks(s)
- struct symtab *s;
-{
- struct blockvector *bv = BLOCKVECTOR(s);
-
- if (BLOCKVECTOR_NBLOCKS(bv) <= 2) {
- /* Cosmetic */
- if (BLOCK_END(BLOCKVECTOR_BLOCK(bv,GLOBAL_BLOCK)) == 0)
- BLOCK_START(BLOCKVECTOR_BLOCK(bv,GLOBAL_BLOCK)) = 0;
- return;
- }
- /*
- * This is very unfortunate: normally all functions are compiled in
- * the order they are found, but if the file is compiled -O3 things
- * are very different. It would be nice to find a reliable test
- * to detect -O3 images in advance.
- */
- if (BLOCKVECTOR_NBLOCKS(bv) > 3)
- qsort(&BLOCKVECTOR_BLOCK(bv,FIRST_LOCAL_BLOCK),
- BLOCKVECTOR_NBLOCKS(bv) - FIRST_LOCAL_BLOCK,
- sizeof(struct block *),
- compare_blocks);
+alphacoff_locate_sections PARAMS ((bfd *, asection *, void *));
- {
- register CORE_ADDR high = 0;
- register int i, j = BLOCKVECTOR_NBLOCKS(bv);
-
- for (i = FIRST_LOCAL_BLOCK; i < j; i++)
- if (high < BLOCK_END(BLOCKVECTOR_BLOCK(bv,i)))
- high = BLOCK_END(BLOCKVECTOR_BLOCK(bv,i));
- BLOCK_END(BLOCKVECTOR_BLOCK(bv,GLOBAL_BLOCK)) = high;
- }
-
- BLOCK_START(BLOCKVECTOR_BLOCK(bv,GLOBAL_BLOCK)) =
- BLOCK_START(BLOCKVECTOR_BLOCK(bv,FIRST_LOCAL_BLOCK));
-
- BLOCK_START(BLOCKVECTOR_BLOCK(bv,STATIC_BLOCK)) =
- BLOCK_START(BLOCKVECTOR_BLOCK(bv,GLOBAL_BLOCK));
- BLOCK_END (BLOCKVECTOR_BLOCK(bv,STATIC_BLOCK)) =
- BLOCK_END (BLOCKVECTOR_BLOCK(bv,GLOBAL_BLOCK));
-}
-
-/* Sort the symtab list, as required by some search procedures.
- We want files ordered to make them look right to users, and for
- searching (see block_for_pc). */
+/* We are called once per section from read_alphacoff_dynamic_symtab.
+ We need to examine each section we are passed, check to see
+ if it is something we are interested in processing, and
+ if so, stash away some access information for the section. */
static void
-reorder_symtabs()
+alphacoff_locate_sections (ignore_abfd, sectp, sip)
+ bfd *ignore_abfd;
+ asection *sectp;
+ PTR sip;
{
- register int i;
- struct symtab *stab;
- register struct symtab **all_symtabs;
- register int symtab_count;
-
- if (!symtab_list)
- return;
-
- /* Create an array of pointers to all the symtabs. */
- for (symtab_count = 0, stab = symtab_list;
- stab;
- symtab_count++, stab = stab->next) {
- obstack_grow (psymbol_obstack, &stab, sizeof (stab));
- /* FIXME: Only sort blocks for new symtabs ??? */
- sort_blocks(stab);
- }
+ register struct alphacoff_dynsecinfo *si;
- all_symtabs = (struct symtab **)
- obstack_base (psymbol_obstack);
- qsort((char *)all_symtabs, symtab_count,
- sizeof(struct symtab *), compare_symtabs);
+ si = (struct alphacoff_dynsecinfo *) sip;
- /* Re-construct the symtab list, but now it is sorted. */
- for (i = 0; i < symtab_count-1; i++)
- all_symtabs[i]->next = all_symtabs[i+1];
- all_symtabs[i]->next = 0;
- symtab_list = all_symtabs[0];
-
- obstack_free (psymbol_obstack, all_symtabs);
+ if (STREQ (sectp->name, ".dynsym"))
+ {
+ si->sym_sect = sectp;
+ }
+ else if (STREQ (sectp->name, ".dynstr"))
+ {
+ si->str_sect = sectp;
+ }
+ else if (STREQ (sectp->name, ".dynamic"))
+ {
+ si->dyninfo_sect = sectp;
+ }
+ else if (STREQ (sectp->name, ".got"))
+ {
+ si->got_sect = sectp;
+ }
}
-/* Sort the partial symtab list, as required by some search procedures.
- PC lookups stop at the first psymtab such that textlow <= PC < texthigh */
+/* Scan an alpha dynamic symbol table for symbols of interest and
+ add them to the minimal symbol table. */
static void
-reorder_psymtabs()
-{
- register int i;
- register int all_psymtabs_count;
- struct partial_symtab *pstab;
- struct partial_symtab **all_psymtabs;
-
- if (!partial_symtab_list)
- return;
-
- /* Create an array of pointers to all the partial_symtabs. */
-
- for (all_psymtabs_count = 0, pstab = partial_symtab_list;
- pstab;
- all_psymtabs_count++, pstab = pstab->next)
- obstack_grow (psymbol_obstack, &pstab, sizeof (pstab));
-
- all_psymtabs = (struct partial_symtab **)
- obstack_base (psymbol_obstack);
-
- qsort((char *)all_psymtabs, all_psymtabs_count,
- sizeof(struct partial_symtab *), compare_psymtabs);
-
- /* Re-construct the partial_symtab_list, but now it is sorted. */
-
- for (i = 0; i < all_psymtabs_count-1; i++)
- all_psymtabs[i]->next = all_psymtabs[i+1];
- all_psymtabs[i]->next = 0;
- partial_symtab_list = all_psymtabs[0];
-
- obstack_free (psymbol_obstack, all_psymtabs);
-}
-\f
-/* Constructor/restructor/destructor procedures */
-
-/* Allocate a new symtab for NAME. Needs an estimate of how many symbols
- MAXSYMS and linenumbers MAXLINES we'll put in it */
-
-static
-struct symtab *
-new_symtab(name, maxsyms, maxlines)
- char *name;
-{
- struct symtab *s = (struct symtab *) xzalloc(sizeof(struct symtab));
- int i;
-
- LINETABLE(s) = new_linetable(maxlines);
-
- s->filename = name;
-
- /* All symtabs must have at least two blocks */
- BLOCKVECTOR(s) = new_bvect(2);
- BLOCKVECTOR_BLOCK(BLOCKVECTOR(s), GLOBAL_BLOCK) = new_block(maxsyms);
- BLOCKVECTOR_BLOCK(BLOCKVECTOR(s), STATIC_BLOCK) = new_block(maxsyms);
- BLOCK_SUPERBLOCK( BLOCKVECTOR_BLOCK(BLOCKVECTOR(s),STATIC_BLOCK)) =
- BLOCKVECTOR_BLOCK(BLOCKVECTOR(s), GLOBAL_BLOCK);
-
- s->free_code = free_linetable;
-
- /* Link the new symtab into the list of such. */
- s->next = symtab_list;
- symtab_list = s;
-
- return s;
-}
-
-/* Cleanup before loading a fresh image */
-
-static destroy_all_symtabs()
-{
- if (symfile)
- free(symfile);
- symfile = 0;
-
- free_all_symtabs();
- current_source_symtab = 0;
- /* psymtabs! */
-}
-
-/* Allocate a new partial_symtab NAME */
-
-static struct partial_symtab *
-new_psymtab(name)
- char *name;
-{
- struct partial_symtab *pst;
-
- pst = (struct partial_symtab *)
- obstack_alloc (psymbol_obstack, sizeof (*pst));
- bzero (pst, sizeof (*pst));
-
- if (name == (char*)-1) /* FIXME -- why not null here? */
- pst->filename = "<no name>";
- else
- pst->filename = name;
-
- pst->next = partial_symtab_list;
- partial_symtab_list = pst;
-
- /* Keep a backpointer to the file`s symbols */
- pst->ldsymlen = (int)cur_hdr;
-
- /* The way to turn this into a symtab is to call... */
- pst->read_symtab = mipscoff_psymtab_to_symtab;
-
- return pst;
-}
-
-
-/* Allocate a new NAME psymbol from LIST, extending it if necessary.
- The psymbol belongs to the psymtab at index PST_IDX */
-
-static struct partial_symbol *
-new_psymbol(list, name, pst_idx)
- struct psymbol_allocation_list *list;
- char *name;
-{
- struct partial_symbol *p;
- struct partial_symtab *pst = fdr_to_pst[pst_idx].pst;
-
- /* Lists are pre-sized, we won`t overflow */
-
- p = list->list + pst->globals_offset + pst->n_global_syms++;
- SYMBOL_NAME(p) = name;
- return p;
-}
-
-
-/* Allocate a linetable array of the given SIZE */
-
-static
-struct linetable *new_linetable(size)
-{
- struct linetable *l;
-
- size = size * sizeof(l->item) + sizeof(struct linetable);
- l = (struct linetable *)xmalloc(size);
- l->nitems = 0;
- return l;
-}
-
-/* Oops, too big. Shrink it. This was important with the 2.4 linetables,
- I am not so sure about the 3.4 ones */
-
-static shrink_linetable(s)
- struct symtab *s;
-{
- struct linetable *l = new_linetable(LINETABLE(s)->nitems);
-
- bcopy(LINETABLE(s), l,
- LINETABLE(s)->nitems * sizeof(l->item) + sizeof(struct linetable));
- free (LINETABLE(s));
- LINETABLE(s) = l;
-}
-
-/* Allocate and zero a new blockvector of NBLOCKS blocks. */
-
-static
-struct blockvector *new_bvect(nblocks)
-{
- struct blockvector *bv;
- int size;
-
- size = sizeof(struct blockvector) + nblocks * sizeof(struct block*);
- bv = (struct blockvector *) xzalloc(size);
-
- BLOCKVECTOR_NBLOCKS(bv) = nblocks;
-
- return bv;
-}
-
-/* Allocate and zero a new block of MAXSYMS symbols */
-
-static
-struct block *new_block(maxsyms)
-{
- int size = sizeof(struct block) + (maxsyms-1) * sizeof(struct symbol *);
- struct block *b = (struct block *)xzalloc(size);
-
- return b;
-}
-
-/* Ooops, too big. Shrink block B in symtab S to its minimal size */
-
-static struct block *
-shrink_block(b, s)
- struct block *b;
- struct symtab *s;
-{
- struct block *new;
- struct blockvector *bv = BLOCKVECTOR(s);
- int i;
-
- /* Just get a new one, copy, and fix references to the old one */
-
- new = (struct block *)xmalloc(sizeof(struct block) +
- (BLOCK_NSYMS(b)-1) * sizeof(struct symbol *));
-
- bcopy(b, new, sizeof(*new) + (BLOCK_NSYMS(b) - 1) * sizeof(struct symbol*));
-
- /* Should chase pointers to old one. Fortunately, that`s just
- the block`s function and inferior blocks */
- if (BLOCK_FUNCTION(b) && SYMBOL_BLOCK_VALUE(BLOCK_FUNCTION(b)) == b)
- SYMBOL_BLOCK_VALUE(BLOCK_FUNCTION(b)) = new;
- for (i = 0; i < BLOCKVECTOR_NBLOCKS(bv); i++)
- if (BLOCKVECTOR_BLOCK(bv,i) == b)
- BLOCKVECTOR_BLOCK(bv,i) = new;
- else if (BLOCK_SUPERBLOCK(BLOCKVECTOR_BLOCK(bv,i)) == b)
- BLOCK_SUPERBLOCK(BLOCKVECTOR_BLOCK(bv,i)) = new;
- free(b);
- return new;
-}
-
-/* Create a new symbol with printname NAME */
-
-static
-struct symbol *
-new_symbol(name)
- char *name;
-{
- struct symbol *s = (struct symbol *)
- obstack_alloc (symbol_obstack, sizeof (struct symbol));
-
- bzero (s, sizeof (*s));
- SYMBOL_NAME(s) = name;
- return s;
-}
-
-/* Create a new type with printname NAME */
-
-static
-struct type *
-new_type(name)
- char *name;
-{
- struct type *t = (struct type *)
- obstack_alloc (symbol_obstack, sizeof (struct type));
-
- bzero (t, sizeof (*t));
- TYPE_NAME(t) = name;
- return t;
-}
-
-/* Create and initialize a new type with printname NAME.
- CODE and LENGTH are the initial info we put in,
- UNS says whether the type is unsigned or not. */
-
-static
-struct type *
-make_type(code, length, uns, name)
- enum type_code code;
- int length, uns;
- char *name;
-{
- register struct type *type;
-
- type = (struct type *) xzalloc(sizeof(struct type));
- TYPE_CODE(type) = code;
- TYPE_LENGTH(type) = length;
- TYPE_FLAGS(type) = uns ? TYPE_FLAG_UNSIGNED : 0;
- TYPE_NAME(type) = name;
-
- return type;
-}
-
-/* Allocate a new field named NAME to the type TYPE */
-
-static
-struct field *new_field(type,name)
- struct type *type;
- char *name;
-{
- struct field *f;
-
- /* Fields are kept in an array */
- if (TYPE_NFIELDS(type))
- TYPE_FIELDS(type) = (struct field*)xrealloc(TYPE_FIELDS(type),
- (TYPE_NFIELDS(type)+1) * sizeof(struct field));
- else
- TYPE_FIELDS(type) = (struct field*)xzalloc(2*sizeof(struct field));
- f = &(TYPE_FIELD(type,TYPE_NFIELDS(type)++));
- bzero(f, sizeof(struct field));
- if (name)
- f->name = name;
- return f;
-}
-
-/* Make an enum constant for a member F of an enumerated type T */
-
-static
-make_enum_constant(f,t)
- struct field *f;
- struct type *t;
-{
- struct symbol *s;
- /*
- * This is awful, but that`s the way it is supposed to be
- * (BTW, no need to free the real 'type', it's a builtin)
- */
- f->type = (struct type *) f->bitpos;
-
- s = new_symbol(f->name);
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_CONST;
- SYMBOL_TYPE(s) = t;
- SYMBOL_VALUE(s) = f->bitpos;
- add_symbol(s, top_stack->cur_block);
-}
-
-
-\f
-/* Things used for calling functions in the inferior.
- These functions are exported to our companion
- mips-dep.c file and are here because they play
- with the symbol-table explicitly. */
-
-#if 0
-/* Need to make a new symbol on the fly for the dummy
- frame we put on the stack. Which goes in the.. */
-
-static struct symtab *dummy_symtab;
-
-/* Make up a dummy symbol for the code we put at END_PC,
- of size SIZE, invoking a function with NARGS arguments
- and using a frame of FRAMESIZE bytes */
-
-mips_create_dummy_symbol(end_pc, size, nargs, framesize)
-{
- struct block *bl;
- struct symbol *g;
- struct mips_extra_func_info *gdbinfo;
-
- /* Allocate symtab if not done already */
- if (dummy_symtab == 0)
- dummy_symtab = new_symtab(".dummy_symtab.", 100, 0);
-
- /* Make a new block. Only needs one symbol */
- bl = new_block(1);
- BLOCK_START(bl) = end_pc - size;
- BLOCK_END(bl) = end_pc;
-
- BLOCK_SUPERBLOCK(bl) =
- BLOCKVECTOR_BLOCK(BLOCKVECTOR(dummy_symtab),GLOBAL_BLOCK);
- add_block(bl, dummy_symtab);
- sort_blocks(dummy_symtab);
-
- BLOCK_FUNCTION(bl) = new_symbol("??");
- SYMBOL_BLOCK_VALUE(BLOCK_FUNCTION(bl)) = bl;
- g = new_symbol(".gdbinfo.");
- BLOCK_SYM(bl,BLOCK_NSYMS(bl)++) = g;
-
- SYMBOL_NAMESPACE(g) = LABEL_NAMESPACE;
- SYMBOL_CLASS(g) = LOC_CONST;
- SYMBOL_TYPE(g) = builtin_type_void;
- gdbinfo = (struct mips_extra_func_info *)
- xzalloc(sizeof(struct mips_extra_func_info));
-
- SYMBOL_VALUE(g) = (long) gdbinfo;
-
- gdbinfo->numargs = nargs;
- gdbinfo->framesize = framesize;
- gdbinfo->framereg = 29;
- gdbinfo->pcreg = 31;
- gdbinfo->regmask = -2;
- gdbinfo->regoffset = -4;
- gdbinfo->fregmask = 0; /* XXX */
- gdbinfo->fregoffset = 0; /* XXX */
-}
-
-/* We just returned from the dummy code at END_PC, drop its symbol */
-
-mips_destroy_dummy_symbol(end_pc)
-{
- struct block *bl;
- struct blockvector *bv = BLOCKVECTOR(dummy_symtab);
- int i;
-
- bl = block_for_pc(end_pc);
- free(BLOCK_FUNCTION(bl));
- free(SYMBOL_VALUE(BLOCK_SYM(bl,0)));
- free(BLOCK_SYM(bl,0));
-
- for (i = FIRST_LOCAL_BLOCK; i < BLOCKVECTOR_NBLOCKS(bv); i++)
- if (BLOCKVECTOR_BLOCK(bv,i) == bl)
- break;
- for (; i < BLOCKVECTOR_NBLOCKS(bv) - 1; i++)
- BLOCKVECTOR_BLOCK(bv,i) = BLOCKVECTOR_BLOCK(bv,i+1);
- BLOCKVECTOR_NBLOCKS(bv)--;
- sort_blocks(dummy_symtab);
- free(bl);
-}
-#endif
-
-/* Sigtramp: make sure we have all the necessary information
- about the signal trampoline code. Since the official code
- from MIPS does not do so, we make up that information ourselves.
- If they fix the library (unlikely) this code will neutralize itself. */
+read_alphacoff_dynamic_symtab (section_offsets, objfile)
+ struct section_offsets *section_offsets;
+ struct objfile *objfile;
+{
+ bfd *abfd = objfile->obfd;
+ struct alphacoff_dynsecinfo si;
+ char *sym_secptr;
+ char *str_secptr;
+ char *dyninfo_secptr;
+ char *got_secptr;
+ bfd_size_type sym_secsize;
+ bfd_size_type str_secsize;
+ bfd_size_type dyninfo_secsize;
+ bfd_size_type got_secsize;
+ int sym_count;
+ int i;
+ int stripped;
+ Elfalpha_External_Sym *x_symp;
+ char *dyninfo_p;
+ char *dyninfo_end;
+ int got_entry_size = 8;
+ int dt_mips_local_gotno = -1;
+ int dt_mips_gotsym = -1;
+
+
+ /* We currently only know how to handle alpha dynamic symbols. */
+ if (bfd_get_arch (abfd) != bfd_arch_alpha)
+ return;
+
+ /* Locate the dynamic symbols sections and read them in. */
+ memset ((char *) &si, 0, sizeof (si));
+ bfd_map_over_sections (abfd, alphacoff_locate_sections, (PTR) &si);
+ if (si.sym_sect == NULL
+ || si.str_sect == NULL
+ || si.dyninfo_sect == NULL
+ || si.got_sect == NULL)
+ return;
+
+ sym_secsize = bfd_get_section_size_before_reloc (si.sym_sect);
+ str_secsize = bfd_get_section_size_before_reloc (si.str_sect);
+ dyninfo_secsize = bfd_get_section_size_before_reloc (si.dyninfo_sect);
+ got_secsize = bfd_get_section_size_before_reloc (si.got_sect);
+ sym_secptr = alloca (sym_secsize);
+ str_secptr = alloca (str_secsize);
+ dyninfo_secptr = alloca (dyninfo_secsize);
+ got_secptr = alloca (got_secsize);
+
+ if (!bfd_get_section_contents (abfd, si.sym_sect, sym_secptr,
+ (file_ptr)0, sym_secsize))
+ return;
+ if (!bfd_get_section_contents (abfd, si.str_sect, str_secptr,
+ (file_ptr)0, str_secsize))
+ return;
+ if (!bfd_get_section_contents (abfd, si.dyninfo_sect, dyninfo_secptr,
+ (file_ptr)0, dyninfo_secsize))
+ return;
+ if (!bfd_get_section_contents (abfd, si.got_sect, got_secptr,
+ (file_ptr)0, got_secsize))
+ return;
+
+ /* Find the number of local GOT entries and the index for the
+ the first dynamic symbol in the GOT. */
+ for (dyninfo_p = dyninfo_secptr, dyninfo_end = dyninfo_p + dyninfo_secsize;
+ dyninfo_p < dyninfo_end;
+ dyninfo_p += sizeof (Elfalpha_External_Dyn))
+ {
+ Elfalpha_External_Dyn *x_dynp = (Elfalpha_External_Dyn *)dyninfo_p;
+ long dyn_tag;
-static
-fixup_sigtramp()
-{
- struct symbol *s;
- struct symtab *st;
- struct block *b, *b0;
-
- sigtramp_address = -1;
-
- /* We know it is sold as sigvec */
- s = lookup_symbol("sigvec", 0, VAR_NAMESPACE, 0, NULL);
-
- /* Most programs do not play with signals */
- if (s == 0)
- return;
-
- b0 = SYMBOL_BLOCK_VALUE(s);
-
- /* A label of sigvec, to be more precise */
- s = lookup_symbol("sigtramp", b0, VAR_NAMESPACE, 0, NULL);
-
- /* But maybe this program uses its own version of sigvec */
- if (s == 0)
- return;
-
- sigtramp_address = SYMBOL_VALUE(s);
- sigtramp_end = sigtramp_address + 0x88; /* black magic */
-
- /* Did we or MIPSco fix the library ? */
- if (SYMBOL_CLASS(s) == LOC_BLOCK)
- return;
-
- /* But what symtab does it live in ? */
- st = find_pc_symtab(SYMBOL_VALUE(s));
-
- /*
- * Ok, there goes the fix: turn it into a procedure, with all the
- * needed info. Note we make it a nested procedure of sigvec,
- * which is the way the (assembly) code is actually written.
- */
- SYMBOL_NAMESPACE(s) = VAR_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_BLOCK;
- SYMBOL_TYPE(s) = make_type(TYPE_CODE_FUNC, 4, 0, 0);
- TYPE_TARGET_TYPE(SYMBOL_TYPE(s)) = builtin_type_void;
-
- /* Need a block to allocate .gdbinfo. in */
- b = new_block(1);
- SYMBOL_BLOCK_VALUE(s) = b;
- BLOCK_START(b) = sigtramp_address;
- BLOCK_END(b) = sigtramp_end;
- BLOCK_FUNCTION(b) = s;
- BLOCK_SUPERBLOCK(b) = BLOCK_SUPERBLOCK(b0);
- add_block(b, st);
- sort_blocks(st);
-
- /* Make a .gdbinfo. for it */
+ dyn_tag = bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_tag);
+ if (dyn_tag == DT_NULL)
+ break;
+ else if (dyn_tag == DT_MIPS_LOCAL_GOTNO)
{
- struct mips_extra_func_info *e =
- (struct mips_extra_func_info *)
- xzalloc(sizeof(struct mips_extra_func_info));
-
- e->numargs = 0; /* the kernel thinks otherwise */
- /* align_longword(sigcontext + SIGFRAME) */
- e->framesize = 0x150;
- e->framereg = SP_REGNUM;
- e->pcreg = 31;
- e->regmask = -2;
- e->regoffset = -(41 * sizeof(int));
- e->fregmask = -1;
- e->fregoffset = -(37 * sizeof(int));
- e->isym = (long)s;
-
- s = new_symbol(".gdbinfo.");
- SYMBOL_VALUE(s) = (int) e;
- SYMBOL_NAMESPACE(s) = LABEL_NAMESPACE;
- SYMBOL_CLASS(s) = LOC_CONST;
- SYMBOL_TYPE(s) = builtin_type_void;
+ if (dt_mips_local_gotno < 0)
+ dt_mips_local_gotno
+ = bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_un.d_val);
}
-
- BLOCK_SYM(b,BLOCK_NSYMS(b)++) = s;
+ else if (dyn_tag == DT_MIPS_GOTSYM)
+ {
+ if (dt_mips_gotsym < 0)
+ dt_mips_gotsym
+ = bfd_h_get_32 (abfd, (bfd_byte *) x_dynp->d_un.d_val);
+ }
+ }
+ if (dt_mips_local_gotno < 0 || dt_mips_gotsym < 0)
+ return;
+
+ /* Scan all dynamic symbols and enter them into the minimal symbol table
+ if appropriate. */
+ sym_count = sym_secsize / sizeof (Elfalpha_External_Sym);
+ stripped = (bfd_get_symcount (abfd) == 0);
+
+ /* Skip first symbol, which is a null dummy. */
+ for (i = 1, x_symp = (Elfalpha_External_Sym *) sym_secptr + 1;
+ i < sym_count;
+ i++, x_symp++)
+ {
+ unsigned long strx;
+ char *name;
+ bfd_vma sym_value;
+ unsigned char sym_info;
+ unsigned int sym_shndx;
+ int isglobal;
+ enum minimal_symbol_type ms_type;
+
+ strx = bfd_h_get_32 (abfd, (bfd_byte *) x_symp->st_name);
+ if (strx >= str_secsize)
+ continue;
+ name = str_secptr + strx;
+ if (*name == '\0' || *name == '.')
+ continue;
+
+ sym_value = bfd_h_get_64 (abfd, (bfd_byte *) x_symp->st_value);
+ sym_info = bfd_h_get_8 (abfd, (bfd_byte *) x_symp->st_info);
+ sym_shndx = bfd_h_get_16 (abfd, (bfd_byte *) x_symp->st_shndx);
+ isglobal = (ELF_ST_BIND (sym_info) == STB_GLOBAL);
+
+ if (sym_shndx == SHN_UNDEF)
+ {
+ /* Handle undefined functions which are defined in a shared
+ library. */
+ if (ELF_ST_TYPE (sym_info) != STT_FUNC
+ || ELF_ST_BIND (sym_info) != STB_GLOBAL)
+ continue;
+
+ ms_type = mst_solib_trampoline;
+
+ /* If sym_value is nonzero, it points to the shared library
+ trampoline entry, which is what we are looking for.
+
+ If sym_value is zero, then we have to get the GOT entry
+ for the symbol.
+ If the GOT entry is nonzero, it represents the quickstart
+ address of the function and we use that as the symbol value.
+
+ If the GOT entry is zero, the function address has to be resolved
+ by the runtime loader before the executable is started.
+ We are unable to find any meaningful address for these
+ functions in the executable file, so we skip them. */
+ if (sym_value == 0)
+ {
+ int got_entry_offset =
+ (i - dt_mips_gotsym + dt_mips_local_gotno) * got_entry_size;
+
+ if (got_entry_offset < 0 || got_entry_offset >= got_secsize)
+ continue;
+ sym_value =
+ bfd_h_get_64 (abfd,
+ (bfd_byte *) (got_secptr + got_entry_offset));
+ if (sym_value == 0)
+ continue;
+ }
+ }
+ else
+ {
+ /* Symbols defined in the executable itself. We only care about
+ them if this is a stripped executable, otherwise they have
+ been retrieved from the normal symbol table already. */
+ if (!stripped)
+ continue;
+
+ if (sym_shndx == SHN_MIPS_TEXT)
+ {
+ if (isglobal)
+ ms_type = mst_text;
+ else
+ ms_type = mst_file_text;
+ sym_value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ }
+ else if (sym_shndx == SHN_MIPS_DATA)
+ {
+ if (isglobal)
+ ms_type = mst_data;
+ else
+ ms_type = mst_file_data;
+ sym_value += ANOFFSET (section_offsets, SECT_OFF_DATA);
+ }
+ else if (sym_shndx == SHN_MIPS_ACOMMON)
+ {
+ if (isglobal)
+ ms_type = mst_bss;
+ else
+ ms_type = mst_file_bss;
+ sym_value += ANOFFSET (section_offsets, SECT_OFF_BSS);
+ }
+ else if (sym_shndx == SHN_ABS)
+ {
+ ms_type = mst_abs;
+ }
+ else
+ {
+ continue;
+ }
+ }
+
+ prim_record_minimal_symbol (obsavestring (name,
+ strlen (name),
+ &objfile -> symbol_obstack),
+ sym_value,
+ ms_type,
+ objfile);
+ }
}
-\f
/* Initialization */
-static struct sym_fns ecoff_sym_fns = {"ecoff", 5,
- mipscoff_new_init, mipscoff_symfile_init,
- mipscoff_symfile_read, mipscoff_symfile_discard};
+static struct sym_fns ecoff_sym_fns =
+{
+ bfd_target_ecoff_flavour,
+ mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
+ mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
+ mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */
+ mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */
+ default_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */
+ NULL /* next: pointer to next struct sym_fns */
+};
+void
_initialize_mipsread ()
{
- add_symtab_fns (&ecoff_sym_fns);
-
- bzero (&global_psymbols, sizeof (global_psymbols));
- bzero (&static_psymbols, sizeof (static_psymbols));
-
- /* Missing basic types */
- builtin_type_string = make_type(TYPE_CODE_PASCAL_ARRAY,
- 1, 0, "string");
- builtin_type_complex = make_type(TYPE_CODE_FLT,
- 2 * sizeof(float), 0, "complex");
- builtin_type_double_complex = make_type(TYPE_CODE_FLT,
- 2 * sizeof(double), 0, "double_complex");
- builtin_type_fixed_dec = make_type(TYPE_CODE_INT, sizeof(int),
- 0, "fixed_decimal");
- builtin_type_float_dec = make_type(TYPE_CODE_FLT, sizeof(double),
- 0, "floating_decimal");
-
- /* Templates types */
- builtin_type_ptr = lookup_pointer_type (builtin_type_void);
- builtin_type_struct = make_type(TYPE_CODE_STRUCT, 0, 0, 0);
- builtin_type_union = make_type(TYPE_CODE_UNION, 0, 0, 0);
- builtin_type_enum = make_type(TYPE_CODE_ENUM, 0, 0, 0);
- builtin_type_range = make_type(TYPE_CODE_RANGE, 0, 0, 0);
- builtin_type_set = make_type(TYPE_CODE_SET, 0, 0, 0);
+ add_symtab_fns (&ecoff_sym_fns);
}
projects / binutils.git / blobdiff