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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/coffread.c
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
Diffstat (limited to 'gdb/coffread.c')
-rw-r--r--gdb/coffread.c2255
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diff --git a/gdb/coffread.c b/gdb/coffread.c
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--- a/gdb/coffread.c
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@@ -1,2255 +0,0 @@
-/* Read coff symbol tables and convert to internal format, for GDB.
- Copyright 1987, 88, 89, 90, 91, 92, 93, 94, 96, 97, 1998
- Free Software Foundation, Inc.
- Contributed by David D. Johnson, Brown University (ddj@cs.brown.edu).
-
-This file is part of GDB.
-
-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 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include "symtab.h"
-#include "gdbtypes.h"
-#include "demangle.h"
-#include "breakpoint.h"
-
-#include "bfd.h"
-#include "obstack.h"
-
-#include "gdb_string.h"
-#include <ctype.h>
-
-#include "coff/internal.h" /* Internal format of COFF symbols in BFD */
-#include "libcoff.h" /* FIXME secret internal data from BFD */
-
-#include "symfile.h"
-#include "objfiles.h"
-#include "buildsym.h"
-#include "gdb-stabs.h"
-#include "stabsread.h"
-#include "complaints.h"
-#include "target.h"
-
-struct coff_symfile_info {
- file_ptr min_lineno_offset; /* Where in file lowest line#s are */
- file_ptr max_lineno_offset; /* 1+last byte of line#s in file */
-
- CORE_ADDR textaddr; /* Addr of .text section. */
- unsigned int textsize; /* Size of .text section. */
- struct stab_section_list *stabsects; /* .stab sections. */
- asection *stabstrsect; /* Section pointer for .stab section */
- char *stabstrdata;
-};
-
-/* Translate an external name string into a user-visible name. */
-#define EXTERNAL_NAME(string, abfd) \
- (string[0] == bfd_get_symbol_leading_char(abfd)? string+1: string)
-
-/* To be an sdb debug type, type must have at least a basic or primary
- derived type. Using this rather than checking against T_NULL is
- said to prevent core dumps if we try to operate on Michael Bloom
- dbx-in-coff file. */
-
-#define SDB_TYPE(type) (BTYPE(type) | (type & N_TMASK))
-
-/* Convert from an sdb register number to an internal gdb register number.
- This should be defined in tm.h, if REGISTER_NAMES is not set up
- to map one to one onto the sdb register numbers. */
-
-#ifndef SDB_REG_TO_REGNUM
-# define SDB_REG_TO_REGNUM(value) (value)
-#endif
-
-/* Core address of start and end of text of current source file.
- This comes from a ".text" symbol where x_nlinno > 0. */
-
-static CORE_ADDR current_source_start_addr;
-static CORE_ADDR current_source_end_addr;
-
-/* The addresses of the symbol table stream and number of symbols
- of the object file we are reading (as copied into core). */
-
-static bfd *nlist_bfd_global;
-static int nlist_nsyms_global;
-
-/* Vector of line number information. */
-
-static struct linetable *line_vector;
-
-/* Index of next entry to go in line_vector_index. */
-
-static int line_vector_index;
-
-/* Last line number recorded in the line vector. */
-
-static int prev_line_number;
-
-/* Number of elements allocated for line_vector currently. */
-
-static int line_vector_length;
-
-/* Pointers to scratch storage, used for reading raw symbols and auxents. */
-
-static char *temp_sym;
-static char *temp_aux;
-
-/* Local variables that hold the shift and mask values for the
- COFF file that we are currently reading. These come back to us
- from BFD, and are referenced by their macro names, as well as
- internally to the BTYPE, ISPTR, ISFCN, ISARY, ISTAG, and DECREF
- macros from include/coff/internal.h . */
-
-static unsigned local_n_btmask;
-static unsigned local_n_btshft;
-static unsigned local_n_tmask;
-static unsigned local_n_tshift;
-
-#define N_BTMASK local_n_btmask
-#define N_BTSHFT local_n_btshft
-#define N_TMASK local_n_tmask
-#define N_TSHIFT local_n_tshift
-
-/* Local variables that hold the sizes in the file of various COFF structures.
- (We only need to know this to read them from the file -- BFD will then
- translate the data in them, into `internal_xxx' structs in the right
- byte order, alignment, etc.) */
-
-static unsigned local_linesz;
-static unsigned local_symesz;
-static unsigned local_auxesz;
-
-/* This is set if this is a PE format file. */
-
-static int pe_file;
-
-/* Chain of typedefs of pointers to empty struct/union types.
- They are chained thru the SYMBOL_VALUE_CHAIN. */
-
-static struct symbol *opaque_type_chain[HASHSIZE];
-
-/* Complaints about various problems in the file being read */
-
-struct complaint ef_complaint =
- {"Unmatched .ef symbol(s) ignored starting at symnum %d", 0, 0};
-
-struct complaint ef_stack_complaint =
- {"`.ef' symbol without matching `.bf' symbol ignored starting at symnum %d", 0, 0};
-
-struct complaint eb_stack_complaint =
- {"`.eb' symbol without matching `.bb' symbol ignored starting at symnum %d", 0, 0};
-
-struct complaint bf_no_aux_complaint =
- {"`.bf' symbol %d has no aux entry", 0, 0};
-
-struct complaint ef_no_aux_complaint =
- {"`.ef' symbol %d has no aux entry", 0, 0};
-
-struct complaint lineno_complaint =
- {"Line number pointer %d lower than start of line numbers", 0, 0};
-
-struct complaint unexpected_type_complaint =
- {"Unexpected type for symbol %s", 0, 0};
-
-struct complaint bad_sclass_complaint =
- {"Bad n_sclass for symbol %s", 0, 0};
-
-struct complaint misordered_blocks_complaint =
- {"Blocks out of order at address %x", 0, 0};
-
-struct complaint tagndx_bad_complaint =
- {"Symbol table entry for %s has bad tagndx value", 0, 0};
-
-struct complaint eb_complaint =
- {"Mismatched .eb symbol ignored starting at symnum %d", 0, 0};
-
-/* Simplified internal version of coff symbol table information */
-
-struct coff_symbol {
- char *c_name;
- int c_symnum; /* symbol number of this entry */
- int c_naux; /* 0 if syment only, 1 if syment + auxent, etc */
- long c_value;
- int c_sclass;
- int c_secnum;
- unsigned int c_type;
-};
-
-static struct type *coff_read_struct_type PARAMS ((int, int, int));
-
-static struct type *decode_base_type PARAMS ((struct coff_symbol *,
- unsigned int,
- union internal_auxent *));
-
-static struct type *decode_type PARAMS ((struct coff_symbol *, unsigned int,
- union internal_auxent *));
-
-static struct type *decode_function_type PARAMS ((struct coff_symbol *,
- unsigned int,
- union internal_auxent *));
-
-static struct type *coff_read_enum_type PARAMS ((int, int, int));
-
-static struct symbol *process_coff_symbol PARAMS ((struct coff_symbol *,
- union internal_auxent *,
- struct section_offsets *,
- struct objfile *));
-
-static void patch_opaque_types PARAMS ((struct symtab *));
-
-static void patch_type PARAMS ((struct type *, struct type *));
-
-static void enter_linenos PARAMS ((long, int, int, struct section_offsets *));
-
-static void free_linetab PARAMS ((void));
-
-static int init_lineno PARAMS ((bfd *, long, int));
-
-static char *getsymname PARAMS ((struct internal_syment *));
-
-static char *coff_getfilename PARAMS ((union internal_auxent *));
-
-static void free_stringtab PARAMS ((void));
-
-static int init_stringtab PARAMS ((bfd *, long));
-
-static void read_one_sym PARAMS ((struct coff_symbol *,
- struct internal_syment *,
- union internal_auxent *));
-
-static void coff_symtab_read PARAMS ((long, int, struct section_offsets *,
- struct objfile *));
-
-static void find_linenos PARAMS ((bfd *, sec_ptr, PTR));
-
-static void coff_symfile_init PARAMS ((struct objfile *));
-
-static void coff_new_init PARAMS ((struct objfile *));
-
-static void coff_symfile_read PARAMS ((struct objfile *,
- struct section_offsets *, int));
-
-static void coff_symfile_finish PARAMS ((struct objfile *));
-
-static void record_minimal_symbol PARAMS ((char *, CORE_ADDR,
- enum minimal_symbol_type,
- struct objfile *));
-
-static void coff_end_symtab PARAMS ((struct objfile *));
-
-static void complete_symtab PARAMS ((char *, CORE_ADDR, unsigned int));
-
-static void coff_start_symtab PARAMS ((char *));
-
-static void coff_record_line PARAMS ((int, CORE_ADDR));
-
-static struct type *coff_alloc_type PARAMS ((int));
-
-static struct type **coff_lookup_type PARAMS ((int));
-
-static void coff_locate_sections PARAMS ((bfd *, asection *, PTR));
-
-/* We are called once per section from coff_symfile_read. 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.
-
- FIXME: The section names should not be hardwired strings (what
- should they be? I don't think most object file formats have enough
- section flags to specify what kind of debug section it is
- -kingdon). */
-
-static void
-coff_locate_sections (abfd, sectp, csip)
- bfd *abfd;
- asection *sectp;
- PTR csip;
-{
- register struct coff_symfile_info *csi;
- const char *name;
-
- csi = (struct coff_symfile_info *) csip;
- name = bfd_get_section_name (abfd, sectp);
- if (STREQ (name, ".text"))
- {
- csi->textaddr = bfd_section_vma (abfd, sectp);
- csi->textsize += bfd_section_size (abfd, sectp);
- }
- else if (strncmp (name, ".text", sizeof ".text" - 1) == 0)
- {
- csi->textsize += bfd_section_size (abfd, sectp);
- }
- else if (STREQ (name, ".stabstr"))
- {
- csi->stabstrsect = sectp;
- }
- else if (strncmp (name, ".stab", sizeof ".stab" - 1) == 0)
- {
- const char *s;
-
- /* We can have multiple .stab sections if linked with
- --split-by-reloc. */
- for (s = name + sizeof ".stab" - 1; *s != '\0'; s++)
- if (! isdigit (*s))
- break;
- if (*s == '\0')
- {
- struct stab_section_list *n, **pn;
-
- n = ((struct stab_section_list *)
- xmalloc (sizeof (struct stab_section_list)));
- n->section = sectp;
- n->next = NULL;
- for (pn = &csi->stabsects; *pn != NULL; pn = &(*pn)->next)
- ;
- *pn = n;
-
- /* This will be run after coffstab_build_psymtabs is called
- in coff_symfile_read, at which point we no longer need
- the information. */
- make_cleanup (free, n);
- }
- }
-}
-
-/* Return the section_offsets* that CS points to. */
-static int cs_to_section PARAMS ((struct coff_symbol *, struct objfile *));
-
-struct find_targ_sec_arg {
- int targ_index;
- asection **resultp;
-};
-
-static void find_targ_sec PARAMS ((bfd *, asection *, void *));
-
-static void find_targ_sec (abfd, sect, obj)
- bfd *abfd;
- asection *sect;
- PTR obj;
-{
- struct find_targ_sec_arg *args = (struct find_targ_sec_arg *)obj;
- if (sect->target_index == args->targ_index)
- *args->resultp = sect;
-}
-
-/* Return the section number (SECT_OFF_*) that CS points to. */
-static int
-cs_to_section (cs, objfile)
- struct coff_symbol *cs;
- struct objfile *objfile;
-{
- asection *sect = NULL;
- struct find_targ_sec_arg args;
- int off = SECT_OFF_TEXT;
-
- args.targ_index = cs->c_secnum;
- args.resultp = &sect;
- bfd_map_over_sections (objfile->obfd, find_targ_sec, &args);
- if (sect != NULL)
- {
- /* This is the section. Figure out what SECT_OFF_* code it is. */
- if (bfd_get_section_flags (abfd, sect) & SEC_CODE)
- off = SECT_OFF_TEXT;
- else if (bfd_get_section_flags (abfd, sect) & SEC_LOAD)
- off = SECT_OFF_DATA;
- else
- off = SECT_OFF_BSS;
- }
- return off;
-}
-
-/* Return the address of the section of a COFF symbol. */
-
-static CORE_ADDR cs_section_address PARAMS ((struct coff_symbol *, bfd *));
-
-static CORE_ADDR
-cs_section_address (cs, abfd)
- struct coff_symbol *cs;
- bfd *abfd;
-{
- asection *sect = NULL;
- struct find_targ_sec_arg args;
- CORE_ADDR addr = 0;
-
- args.targ_index = cs->c_secnum;
- args.resultp = &sect;
- bfd_map_over_sections (abfd, find_targ_sec, &args);
- if (sect != NULL)
- addr = bfd_get_section_vma (objfile->obfd, sect);
- return addr;
-}
-
-/* Look up a coff type-number index. Return the address of the slot
- where the type for that index is stored.
- The type-number is in INDEX.
-
- This can be used for finding the type associated with that index
- or for associating a new type with the index. */
-
-static struct type **
-coff_lookup_type (index)
- register int index;
-{
- if (index >= type_vector_length)
- {
- int old_vector_length = type_vector_length;
-
- type_vector_length *= 2;
- if (index /* is still */ >= type_vector_length)
- type_vector_length = index * 2;
-
- type_vector = (struct type **)
- xrealloc ((char *) type_vector,
- type_vector_length * sizeof (struct type *));
- memset (&type_vector[old_vector_length], 0,
- (type_vector_length - old_vector_length) * sizeof(struct type *));
- }
- return &type_vector[index];
-}
-
-/* Make sure there is a type allocated for type number index
- and return the type object.
- This can create an empty (zeroed) type object. */
-
-static struct type *
-coff_alloc_type (index)
- int index;
-{
- register struct type **type_addr = coff_lookup_type (index);
- register struct type *type = *type_addr;
-
- /* If we are referring to a type not known at all yet,
- allocate an empty type for it.
- We will fill it in later if we find out how. */
- if (type == NULL)
- {
- type = alloc_type (current_objfile);
- *type_addr = type;
- }
- return type;
-}
-
-/* Record a line number entry for line LINE at address PC.
- FIXME: Use record_line instead. */
-
-static void
-coff_record_line (line, pc)
- int line;
- CORE_ADDR pc;
-{
- struct linetable_entry *e;
- /* Make sure line vector is big enough. */
-
- if (line_vector_index + 2 >= line_vector_length)
- {
- line_vector_length *= 2;
- line_vector = (struct linetable *)
- xrealloc ((char *) line_vector, sizeof (struct linetable)
- + (line_vector_length
- * sizeof (struct linetable_entry)));
- }
-
- e = line_vector->item + line_vector_index++;
- e->line = line; e->pc = pc;
-}
-
-/* Start a new symtab for a new source file.
- This is called when a COFF ".file" symbol is seen;
- it indicates the start of data for one original source file. */
-
-static void
-coff_start_symtab (name)
- char *name;
-{
- start_symtab (
- /* We fill in the filename later. start_symtab puts
- this pointer into last_source_file and we put it in
- subfiles->name, which end_symtab frees; that's why
- it must be malloc'd. */
- savestring (name, strlen(name)),
- /* We never know the directory name for COFF. */
- NULL,
- /* The start address is irrelevant, since we set
- last_source_start_addr in coff_end_symtab. */
- 0);
- record_debugformat ("COFF");
-
- /* Initialize the source file line number information for this file. */
-
- if (line_vector) /* Unlikely, but maybe possible? */
- free ((PTR)line_vector);
- line_vector_index = 0;
- line_vector_length = 1000;
- prev_line_number = -2; /* Force first line number to be explicit */
- line_vector = (struct linetable *)
- xmalloc (sizeof (struct linetable)
- + line_vector_length * sizeof (struct linetable_entry));
-}
-
-/* Save the vital information from when starting to read a file,
- for use when closing off the current file.
- NAME is the file name the symbols came from, START_ADDR is the first
- text address for the file, and SIZE is the number of bytes of text. */
-
-static void
-complete_symtab (name, start_addr, size)
- char *name;
- CORE_ADDR start_addr;
- unsigned int size;
-{
- if (last_source_file != NULL)
- free (last_source_file);
- last_source_file = savestring (name, strlen (name));
- current_source_start_addr = start_addr;
- current_source_end_addr = start_addr + size;
-
- if (current_objfile -> ei.entry_point >= current_source_start_addr &&
- current_objfile -> ei.entry_point < current_source_end_addr)
- {
- current_objfile -> ei.entry_file_lowpc = current_source_start_addr;
- current_objfile -> ei.entry_file_highpc = current_source_end_addr;
- }
-}
-
-/* Finish the symbol definitions for one main source file,
- close off all the lexical contexts for that file
- (creating struct block's for them), then make the
- struct symtab for that file and put it in the list of all such. */
-
-static void
-coff_end_symtab (objfile)
- struct objfile *objfile;
-{
- struct symtab *symtab;
-
- last_source_start_addr = current_source_start_addr;
-
- /* For no good reason, this file stores the number of entries in a
- separate variable instead of in line_vector->nitems. Fix it. */
- if (line_vector)
- line_vector->nitems = line_vector_index;
-
- /* For COFF, we only have one subfile, so we can just look at
- subfiles and not worry about there being other elements in the
- chain. We fill in various fields now because we didn't know them
- before (or because doing it now is simply an artifact of how this
- file used to be written). */
- subfiles->line_vector = line_vector;
-
- symtab = end_symtab (current_source_end_addr, objfile, 0);
-
- if (symtab != NULL)
- free_named_symtabs (symtab->filename);
-
- /* Reinitialize for beginning of new file. */
- line_vector = 0;
- line_vector_length = -1;
- last_source_file = NULL;
-}
-
-static void
-record_minimal_symbol (name, address, type, objfile)
- char *name;
- CORE_ADDR address;
- enum minimal_symbol_type type;
- struct objfile *objfile;
-{
- /* We don't want TDESC entry points in the minimal symbol table */
- if (name[0] == '@') return;
-
- prim_record_minimal_symbol (name, address, type, objfile);
-}
-
-/* coff_symfile_init ()
- is the coff-specific initialization routine for reading symbols.
- It is passed a struct objfile which contains, among other things,
- the BFD for the file whose symbols are being read, and a slot for
- a pointer to "private data" which we fill with cookies and other
- treats for coff_symfile_read ().
-
- We will only be called if this is a COFF or COFF-like file.
- BFD handles figuring out the format of the file, and code in symtab.c
- uses BFD's determination to vector to us.
-
- The ultimate result is a new symtab (or, FIXME, eventually a psymtab). */
-
-static void
-coff_symfile_init (objfile)
- struct objfile *objfile;
-{
- /* Allocate struct to keep track of stab reading. */
- objfile->sym_stab_info = (struct dbx_symfile_info *)
- xmmalloc (objfile->md, sizeof (struct dbx_symfile_info));
-
- memset ((PTR) objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
-
- /* Allocate struct to keep track of the symfile */
- objfile->sym_private = xmmalloc (objfile->md,
- sizeof (struct coff_symfile_info));
-
- memset (objfile->sym_private, 0, sizeof (struct coff_symfile_info));
-
- /* COFF objects may be reordered, so set OBJF_REORDERED. If we
- find this causes a significant slowdown in gdb then we could
- set it in the debug symbol readers only when necessary. */
- objfile->flags |= OBJF_REORDERED;
-
- init_entry_point_info (objfile);
-}
-
-/* This function is called for every section; it finds the outer limits
- of the line table (minimum and maximum file offset) so that the
- mainline code can read the whole thing for efficiency. */
-
-/* ARGSUSED */
-static void
-find_linenos (abfd, asect, vpinfo)
- bfd *abfd;
- sec_ptr asect;
- PTR vpinfo;
-{
- struct coff_symfile_info *info;
- int size, count;
- file_ptr offset, maxoff;
-
-/* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */
- count = asect->lineno_count;
-/* End of warning */
-
- if (count == 0)
- return;
- size = count * local_linesz;
-
- info = (struct coff_symfile_info *)vpinfo;
-/* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */
- offset = asect->line_filepos;
-/* End of warning */
-
- if (offset < info->min_lineno_offset || info->min_lineno_offset == 0)
- info->min_lineno_offset = offset;
-
- maxoff = offset + size;
- if (maxoff > info->max_lineno_offset)
- info->max_lineno_offset = maxoff;
-}
-
-
-/* The BFD for this file -- only good while we're actively reading
- symbols into a psymtab or a symtab. */
-
-static bfd *symfile_bfd;
-
-/* Read a symbol file, after initialization by coff_symfile_init. */
-
-/* ARGSUSED */
-static void
-coff_symfile_read (objfile, section_offsets, mainline)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline;
-{
- struct coff_symfile_info *info;
- struct dbx_symfile_info *dbxinfo;
- bfd *abfd = objfile->obfd;
- coff_data_type *cdata = coff_data (abfd);
- char *name = bfd_get_filename (abfd);
- register int val;
- int num_symbols;
- int symtab_offset;
- int stringtab_offset;
- struct cleanup *back_to;
- int stabstrsize;
-
- info = (struct coff_symfile_info *) objfile -> sym_private;
- dbxinfo = objfile->sym_stab_info;
- symfile_bfd = abfd; /* Kludge for swap routines */
-
-/* WARNING WILL ROBINSON! ACCESSING BFD-PRIVATE DATA HERE! FIXME! */
- num_symbols = bfd_get_symcount (abfd); /* How many syms */
- symtab_offset = cdata->sym_filepos; /* Symbol table file offset */
- stringtab_offset = symtab_offset + /* String table file offset */
- num_symbols * cdata->local_symesz;
-
- /* Set a few file-statics that give us specific information about
- the particular COFF file format we're reading. */
- local_linesz = cdata->local_linesz;
- local_n_btmask = cdata->local_n_btmask;
- local_n_btshft = cdata->local_n_btshft;
- local_n_tmask = cdata->local_n_tmask;
- local_n_tshift = cdata->local_n_tshift;
- local_linesz = cdata->local_linesz;
- local_symesz = cdata->local_symesz;
- local_auxesz = cdata->local_auxesz;
-
- /* Allocate space for raw symbol and aux entries, based on their
- space requirements as reported by BFD. */
- temp_sym = (char *) xmalloc
- (cdata->local_symesz + cdata->local_auxesz);
- temp_aux = temp_sym + cdata->local_symesz;
- back_to = make_cleanup ((make_cleanup_func) free_current_contents, &temp_sym);
-
- /* We need to know whether this is a PE file, because in PE files,
- unlike standard COFF files, symbol values are stored as offsets
- from the section address, rather than as absolute addresses.
- FIXME: We should use BFD to read the symbol table, and thus avoid
- this problem. */
- pe_file = strncmp (bfd_get_target (objfile->obfd), "pe", 2) == 0;
-
-/* End of warning */
-
- /* 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, (PTR) info);
-
- make_cleanup ((make_cleanup_func) free_linetab, 0);
- val = init_lineno (abfd, 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. */
-
- make_cleanup ((make_cleanup_func) free_stringtab, 0);
- val = init_stringtab (abfd, stringtab_offset);
- if (val < 0)
- error ("\"%s\": can't get string table", name);
-
- init_minimal_symbol_collection ();
- make_cleanup ((make_cleanup_func) discard_minimal_symbols, 0);
-
- /* Now that the executable file is positioned at symbol table,
- process it and define symbols accordingly. */
-
- coff_symtab_read ((long) symtab_offset, num_symbols, section_offsets,
- objfile);
-
- /* Sort symbols alphabetically within each block. */
-
- {
- struct symtab *s;
-
- for (s = objfile -> symtabs; s != NULL; s = s -> next)
- sort_symtab_syms (s);
- }
-
- /* Install any minimal symbols that have been collected as the current
- minimal symbols for this objfile. */
-
- install_minimal_symbols (objfile);
-
- bfd_map_over_sections (abfd, coff_locate_sections, (PTR) info);
-
- if (info->stabsects)
- {
- /* FIXME: dubious. Why can't we use something normal like
- bfd_get_section_contents? */
- bfd_seek (abfd, abfd->where, 0);
-
- stabstrsize = bfd_section_size (abfd, info->stabstrsect);
-
- coffstab_build_psymtabs (objfile,
- section_offsets,
- mainline,
- info->textaddr, info->textsize,
- info->stabsects,
- info->stabstrsect->filepos, stabstrsize);
- }
-
- do_cleanups (back_to);
-}
-
-static void
-coff_new_init (ignore)
- struct objfile *ignore;
-{
-}
-
-/* Perform any local cleanups required when we are done with a particular
- objfile. I.E, we are in the process of discarding all symbol information
- for an objfile, freeing up all memory held for it, and unlinking the
- objfile struct from the global list of known objfiles. */
-
-static void
-coff_symfile_finish (objfile)
- struct objfile *objfile;
-{
- if (objfile -> sym_private != NULL)
- {
- mfree (objfile -> md, objfile -> sym_private);
- }
-}
-
-
-/* Given pointers to a symbol table in coff style exec file,
- analyze them and create struct symtab's describing the symbols.
- NSYMS is the number of symbols in the symbol table.
- We read them one at a time using read_one_sym (). */
-
-static void
-coff_symtab_read (symtab_offset, nsyms, section_offsets, objfile)
- long symtab_offset;
- int nsyms;
- struct section_offsets *section_offsets;
- struct objfile *objfile;
-{
- register struct context_stack *new;
- struct coff_symbol coff_symbol;
- register struct coff_symbol *cs = &coff_symbol;
- static struct internal_syment main_sym;
- static union internal_auxent main_aux;
- struct coff_symbol fcn_cs_saved;
- static struct internal_syment fcn_sym_saved;
- static union internal_auxent fcn_aux_saved;
- struct symtab *s;
- /* A .file is open. */
- int in_source_file = 0;
- int next_file_symnum = -1;
- /* Name of the current file. */
- char *filestring = "";
- int depth = 0;
- int fcn_first_line = 0;
- int fcn_last_line = 0;
- int fcn_start_addr = 0;
- long fcn_line_ptr = 0;
- int val;
- CORE_ADDR tmpaddr;
-
- /* Work around a stdio bug in SunOS4.1.1 (this makes me nervous....
- it's hard to know I've really worked around it. The fix should be
- harmless, anyway). The symptom of the bug is that the first
- fread (in read_one_sym), will (in my example) actually get data
- from file offset 268, when the fseek was to 264 (and ftell shows
- 264). This causes all hell to break loose. I was unable to
- reproduce this on a short test program which operated on the same
- file, performing (I think) the same sequence of operations.
-
- It stopped happening when I put in this (former) rewind().
-
- FIXME: Find out if this has been reported to Sun, whether it has
- been fixed in a later release, etc. */
-
- bfd_seek (objfile->obfd, 0, 0);
-
- /* Position to read the symbol table. */
- val = bfd_seek (objfile->obfd, (long) symtab_offset, 0);
- if (val < 0)
- perror_with_name (objfile->name);
-
- current_objfile = objfile;
- nlist_bfd_global = objfile->obfd;
- nlist_nsyms_global = nsyms;
- last_source_file = NULL;
- memset (opaque_type_chain, 0, sizeof opaque_type_chain);
-
- if (type_vector) /* Get rid of previous one */
- free ((PTR) type_vector);
- type_vector_length = 160;
- type_vector = (struct type **)
- xmalloc (type_vector_length * sizeof (struct type *));
- memset (type_vector, 0, type_vector_length * sizeof (struct type *));
-
- coff_start_symtab ("");
-
- symnum = 0;
- while (symnum < nsyms)
- {
- QUIT; /* Make this command interruptable. */
-
- read_one_sym (cs, &main_sym, &main_aux);
-
- if (cs->c_symnum == next_file_symnum && cs->c_sclass != C_FILE)
- {
- if (last_source_file)
- coff_end_symtab (objfile);
-
- coff_start_symtab ("_globals_");
- complete_symtab ("_globals_", 0, 0);
- /* done with all files, everything from here on out is globals */
- }
-
- /* Special case for file with type declarations only, no text. */
- if (!last_source_file && SDB_TYPE (cs->c_type)
- && cs->c_secnum == N_DEBUG)
- complete_symtab (filestring, 0, 0);
-
- /* Typedefs should not be treated as symbol definitions. */
- if (ISFCN (cs->c_type) && cs->c_sclass != C_TPDEF)
- {
- /* Record all functions -- external and static -- in minsyms. */
- tmpaddr = cs->c_value + ANOFFSET (section_offsets, SECT_OFF_TEXT);
- record_minimal_symbol (cs->c_name, tmpaddr, mst_text, objfile);
-
- fcn_line_ptr = main_aux.x_sym.x_fcnary.x_fcn.x_lnnoptr;
- fcn_start_addr = tmpaddr;
- fcn_cs_saved = *cs;
- fcn_sym_saved = main_sym;
- fcn_aux_saved = main_aux;
- continue;
- }
-
- switch (cs->c_sclass)
- {
- case C_EFCN:
- case C_EXTDEF:
- case C_ULABEL:
- case C_USTATIC:
- case C_LINE:
- case C_ALIAS:
- case C_HIDDEN:
- complain (&bad_sclass_complaint, cs->c_name);
- break;
-
- case C_FILE:
- /* c_value field contains symnum of next .file entry in table
- or symnum of first global after last .file. */
- next_file_symnum = cs->c_value;
- if (cs->c_naux > 0)
- filestring = coff_getfilename (&main_aux);
- else
- filestring = "";
-
- /* Complete symbol table for last object file
- containing debugging information. */
- if (last_source_file)
- {
- coff_end_symtab (objfile);
- coff_start_symtab (filestring);
- }
- in_source_file = 1;
- break;
-
- /* C_LABEL is used for labels and static functions. Including
- it here allows gdb to see static functions when no debug
- info is available. */
- case C_LABEL:
- /* However, labels within a function can make weird backtraces,
- so filter them out (from phdm@macquel.be). */
- if (within_function)
- break;
- case C_STAT:
- case C_THUMBLABEL:
- case C_THUMBSTAT:
- case C_THUMBSTATFUNC:
- if (cs->c_name[0] == '.')
- {
- if (STREQ (cs->c_name, ".text")) {
- /* FIXME: don't wire in ".text" as section name
- or symbol name! */
- /* Check for in_source_file deals with case of
- a file with debugging symbols
- followed by a later file with no symbols. */
- if (in_source_file)
- complete_symtab (filestring,
- cs->c_value + ANOFFSET (section_offsets, SECT_OFF_TEXT),
- main_aux.x_scn.x_scnlen);
- in_source_file = 0;
- }
- /* flush rest of '.' symbols */
- break;
- }
- else if (!SDB_TYPE (cs->c_type)
- && cs->c_name[0] == 'L'
- && (strncmp (cs->c_name, "LI%", 3) == 0
- || strncmp (cs->c_name, "LF%", 3) == 0
- || strncmp (cs->c_name,"LC%",3) == 0
- || strncmp (cs->c_name,"LP%",3) == 0
- || strncmp (cs->c_name,"LPB%",4) == 0
- || strncmp (cs->c_name,"LBB%",4) == 0
- || strncmp (cs->c_name,"LBE%",4) == 0
- || strncmp (cs->c_name,"LPBX%",5) == 0))
- /* At least on a 3b1, gcc generates swbeg and string labels
- that look like this. Ignore them. */
- break;
- /* fall in for static symbols that don't start with '.' */
- case C_THUMBEXT:
- case C_THUMBEXTFUNC:
- case C_EXT:
- {
- /* Record it in the minimal symbols regardless of
- SDB_TYPE. This parallels what we do for other debug
- formats, and probably is needed to make
- print_address_symbolic work right without the (now
- gone) "set fast-symbolic-addr off" kludge. */
-
- /* FIXME: should use mst_abs, and not relocate, if absolute. */
- enum minimal_symbol_type ms_type;
- int sec;
-
- if (cs->c_secnum == N_UNDEF)
- {
- /* This is a common symbol. See if the target
- environment knows where it has been relocated to. */
- CORE_ADDR reladdr;
- if (target_lookup_symbol (cs->c_name, &reladdr))
- {
- /* Error in lookup; ignore symbol. */
- break;
- }
- tmpaddr = reladdr;
- /* The address has already been relocated; make sure that
- objfile_relocate doesn't relocate it again. */
- sec = -2;
- ms_type = cs->c_sclass == C_EXT
- || cs->c_sclass == C_THUMBEXT ?
- mst_bss : mst_file_bss;
- }
- else
- {
- sec = cs_to_section (cs, objfile);
- tmpaddr = cs->c_value;
- if (cs->c_sclass == C_EXT || cs->c_sclass == C_THUMBEXTFUNC
- || cs->c_sclass == C_THUMBEXT)
- tmpaddr += ANOFFSET (section_offsets, sec);
-
- switch (sec)
- {
- case SECT_OFF_TEXT:
- case SECT_OFF_RODATA:
- ms_type =
- cs->c_sclass == C_EXT || cs->c_sclass == C_THUMBEXTFUNC
- || cs->c_sclass == C_THUMBEXT ?
- mst_text : mst_file_text;
-#ifdef SMASH_TEXT_ADDRESS
- if (tmpaddr & 1) /* FIXME: delete this line */
- SMASH_TEXT_ADDRESS (tmpaddr);
-#endif
- break;
- case SECT_OFF_DATA:
- ms_type =
- cs->c_sclass == C_EXT || cs->c_sclass == C_THUMBEXT ?
- mst_data : mst_file_data;
- break;
- case SECT_OFF_BSS:
- ms_type =
- cs->c_sclass == C_EXT || cs->c_sclass == C_THUMBEXT ?
- mst_data : mst_file_data;
- break;
- default:
- ms_type = mst_unknown;
- break;
- }
- }
-
- if (cs->c_name[0] != '@' /* Skip tdesc symbols */)
- {
- struct minimal_symbol *msym;
-
- msym = prim_record_minimal_symbol_and_info
- (cs->c_name, tmpaddr, ms_type, (char *)cs->c_sclass, sec,
- NULL, objfile);
-#ifdef COFF_MAKE_MSYMBOL_SPECIAL
- if(msym)
- COFF_MAKE_MSYMBOL_SPECIAL(cs->c_sclass, msym);
-#endif
- }
- if (SDB_TYPE (cs->c_type))
- {
- struct symbol *sym;
- sym = process_coff_symbol
- (cs, &main_aux, section_offsets, objfile);
- SYMBOL_VALUE (sym) = tmpaddr;
- SYMBOL_SECTION (sym) = sec;
- }
- }
- break;
-
- case C_FCN:
- if (STREQ (cs->c_name, ".bf"))
- {
- within_function = 1;
-
- /* value contains address of first non-init type code */
- /* main_aux.x_sym.x_misc.x_lnsz.x_lnno
- contains line number of '{' } */
- if (cs->c_naux != 1)
- complain (&bf_no_aux_complaint, cs->c_symnum);
- fcn_first_line = main_aux.x_sym.x_misc.x_lnsz.x_lnno;
-
- /* Might want to check that locals are 0 and
- context_stack_depth is zero, and complain if not. */
-
- depth = 0;
- new = push_context (depth, fcn_start_addr);
- fcn_cs_saved.c_name = getsymname (&fcn_sym_saved);
- new->name =
- process_coff_symbol (&fcn_cs_saved, &fcn_aux_saved,
- section_offsets, objfile);
- }
- else if (STREQ (cs->c_name, ".ef"))
- {
- /* the value of .ef is the address of epilogue code;
- not useful for gdb. */
- /* { main_aux.x_sym.x_misc.x_lnsz.x_lnno
- contains number of lines to '}' */
-
- if (context_stack_depth <= 0)
- { /* We attempted to pop an empty context stack */
- complain (&ef_stack_complaint, cs->c_symnum);
- within_function = 0;
- break;
- }
-
- new = pop_context ();
- /* Stack must be empty now. */
- if (context_stack_depth > 0 || new == NULL)
- {
- complain (&ef_complaint, cs->c_symnum);
- within_function = 0;
- break;
- }
- if (cs->c_naux != 1)
- {
- complain (&ef_no_aux_complaint, cs->c_symnum);
- fcn_last_line = 0x7FFFFFFF;
- }
- else
- {
- fcn_last_line = main_aux.x_sym.x_misc.x_lnsz.x_lnno;
- }
- enter_linenos (fcn_line_ptr, fcn_first_line, fcn_last_line,
- section_offsets);
-
- finish_block (new->name, &local_symbols, new->old_blocks,
- new->start_addr,
-#if defined (FUNCTION_EPILOGUE_SIZE)
- /* This macro should be defined only on
- machines where the
- fcn_aux_saved.x_sym.x_misc.x_fsize
- field is always zero.
- So use the .bf record information that
- points to the epilogue and add the size
- of the epilogue. */
- cs->c_value
- + FUNCTION_EPILOGUE_SIZE
- + ANOFFSET (section_offsets, SECT_OFF_TEXT),
-#else
- fcn_cs_saved.c_value
- + fcn_aux_saved.x_sym.x_misc.x_fsize
- + ANOFFSET (section_offsets, SECT_OFF_TEXT),
-#endif
- objfile
- );
- within_function = 0;
- }
- break;
-
- case C_BLOCK:
- if (STREQ (cs->c_name, ".bb"))
- {
- tmpaddr = cs->c_value;
- tmpaddr += ANOFFSET (section_offsets, SECT_OFF_TEXT);
- push_context (++depth, tmpaddr);
- }
- else if (STREQ (cs->c_name, ".eb"))
- {
- if (context_stack_depth <= 0)
- { /* We attempted to pop an empty context stack */
- complain (&eb_stack_complaint, cs->c_symnum);
- break;
- }
-
- new = pop_context ();
- if (depth-- != new->depth)
- {
- complain (&eb_complaint, symnum);
- break;
- }
- if (local_symbols && context_stack_depth > 0)
- {
- tmpaddr =
- cs->c_value + ANOFFSET (section_offsets, SECT_OFF_TEXT);
- /* Make a block for the local symbols within. */
- finish_block (0, &local_symbols, new->old_blocks,
- new->start_addr, tmpaddr, objfile);
- }
- /* Now pop locals of block just finished. */
- local_symbols = new->locals;
- }
- break;
-
- default:
- process_coff_symbol (cs, &main_aux, section_offsets, objfile);
- break;
- }
- }
-
- if (last_source_file)
- coff_end_symtab (objfile);
-
- /* Patch up any opaque types (references to types that are not defined
- in the file where they are referenced, e.g. "struct foo *bar"). */
- ALL_OBJFILE_SYMTABS (objfile, s)
- patch_opaque_types (s);
-
- current_objfile = NULL;
-}
-
-/* Routines for reading headers and symbols from executable. */
-
-/* Read the next symbol, swap it, and return it in both internal_syment
- form, and coff_symbol form. Also return its first auxent, if any,
- in internal_auxent form, and skip any other auxents. */
-
-static void
-read_one_sym (cs, sym, aux)
- register struct coff_symbol *cs;
- register struct internal_syment *sym;
- register union internal_auxent *aux;
-{
- int i;
-
- cs->c_symnum = symnum;
- bfd_read (temp_sym, local_symesz, 1, nlist_bfd_global);
- bfd_coff_swap_sym_in (symfile_bfd, temp_sym, (char *)sym);
- cs->c_naux = sym->n_numaux & 0xff;
- if (cs->c_naux >= 1)
- {
- bfd_read (temp_aux, local_auxesz, 1, nlist_bfd_global);
- bfd_coff_swap_aux_in (symfile_bfd, temp_aux, sym->n_type, sym->n_sclass,
- 0, cs->c_naux, (char *)aux);
- /* If more than one aux entry, read past it (only the first aux
- is important). */
- for (i = 1; i < cs->c_naux; i++)
- bfd_read (temp_aux, local_auxesz, 1, nlist_bfd_global);
- }
- cs->c_name = getsymname (sym);
- cs->c_value = sym->n_value;
- cs->c_sclass = (sym->n_sclass & 0xff);
- cs->c_secnum = sym->n_scnum;
- cs->c_type = (unsigned) sym->n_type;
- if (!SDB_TYPE (cs->c_type))
- cs->c_type = 0;
-
-#if 0
- if (cs->c_sclass & 128)
- printf("thumb symbol %s, class 0x%x\n", cs->c_name, cs->c_sclass);
-#endif
-
- symnum += 1 + cs->c_naux;
-
- /* The PE file format stores symbol values as offsets within the
- section, rather than as absolute addresses. We correct that
- here, if the symbol has an appropriate storage class. FIXME: We
- should use BFD to read the symbols, rather than duplicating the
- work here. */
- if (pe_file)
- {
- switch (cs->c_sclass)
- {
- case C_EXT:
- case C_THUMBEXT:
- case C_THUMBEXTFUNC:
- case C_SECTION:
- case C_NT_WEAK:
- case C_STAT:
- case C_THUMBSTAT:
- case C_THUMBSTATFUNC:
- case C_LABEL:
- case C_THUMBLABEL:
- case C_BLOCK:
- case C_FCN:
- case C_EFCN:
- if (cs->c_secnum != 0)
- cs->c_value += cs_section_address (cs, symfile_bfd);
- break;
- }
- }
-}
-
-/* Support for string table handling */
-
-static char *stringtab = NULL;
-
-static int
-init_stringtab (abfd, offset)
- bfd *abfd;
- long offset;
-{
- long length;
- int val;
- unsigned char lengthbuf[4];
-
- free_stringtab ();
-
- /* If the file is stripped, the offset might be zero, indicating no
- string table. Just return with `stringtab' set to null. */
- if (offset == 0)
- return 0;
-
- if (bfd_seek (abfd, offset, 0) < 0)
- return -1;
-
- val = bfd_read ((char *)lengthbuf, sizeof lengthbuf, 1, abfd);
- length = bfd_h_get_32 (symfile_bfd, lengthbuf);
-
- /* If no string table is needed, then the file may end immediately
- after the symbols. Just return with `stringtab' set to null. */
- if (val != sizeof lengthbuf || length < sizeof lengthbuf)
- return 0;
-
- stringtab = (char *) xmalloc (length);
- /* This is in target format (probably not very useful, and not currently
- used), not host format. */
- memcpy (stringtab, lengthbuf, sizeof lengthbuf);
- if (length == sizeof length) /* Empty table -- just the count */
- return 0;
-
- val = bfd_read (stringtab + sizeof lengthbuf, length - sizeof lengthbuf, 1, abfd);
- if (val != length - sizeof lengthbuf || stringtab[length - 1] != '\0')
- return -1;
-
- return 0;
-}
-
-static void
-free_stringtab ()
-{
- if (stringtab)
- free (stringtab);
- stringtab = NULL;
-}
-
-static char *
-getsymname (symbol_entry)
- struct internal_syment *symbol_entry;
-{
- static char buffer[SYMNMLEN+1];
- char *result;
-
- if (symbol_entry->_n._n_n._n_zeroes == 0)
- {
- /* FIXME: Probably should be detecting corrupt symbol files by
- seeing whether offset points to within the stringtab. */
- result = stringtab + symbol_entry->_n._n_n._n_offset;
- }
- else
- {
- strncpy (buffer, symbol_entry->_n._n_name, SYMNMLEN);
- buffer[SYMNMLEN] = '\0';
- result = buffer;
- }
- return result;
-}
-
-/* Extract the file name from the aux entry of a C_FILE symbol. Return
- only the last component of the name. Result is in static storage and
- is only good for temporary use. */
-
-static char *
-coff_getfilename (aux_entry)
- union internal_auxent *aux_entry;
-{
- static char buffer[BUFSIZ];
- register char *temp;
- char *result;
-
- if (aux_entry->x_file.x_n.x_zeroes == 0)
- strcpy (buffer, stringtab + aux_entry->x_file.x_n.x_offset);
- else
- {
- strncpy (buffer, aux_entry->x_file.x_fname, FILNMLEN);
- buffer[FILNMLEN] = '\0';
- }
- result = buffer;
-
- /* FIXME: We should not be throwing away the information about what
- directory. It should go into dirname of the symtab, or some such
- place. */
- if ((temp = strrchr (result, '/')) != NULL)
- result = temp + 1;
- return (result);
-}
-
-/* Support for line number handling. */
-
-static char *linetab = NULL;
-static long linetab_offset;
-static unsigned long linetab_size;
-
-/* Read in all the line numbers for fast lookups later. Leave them in
- external (unswapped) format in memory; we'll swap them as we enter
- them into GDB's data structures. */
-
-static int
-init_lineno (abfd, offset, size)
- bfd *abfd;
- long offset;
- int size;
-{
- int val;
-
- linetab_offset = offset;
- linetab_size = size;
-
- free_linetab();
-
- if (size == 0)
- return 0;
-
- if (bfd_seek (abfd, offset, 0) < 0)
- return -1;
-
- /* Allocate the desired table, plus a sentinel */
- linetab = (char *) xmalloc (size + local_linesz);
-
- val = bfd_read (linetab, size, 1, abfd);
- if (val != size)
- return -1;
-
- /* Terminate it with an all-zero sentinel record */
- memset (linetab + size, 0, local_linesz);
-
- return 0;
-}
-
-static void
-free_linetab ()
-{
- if (linetab)
- free (linetab);
- linetab = NULL;
-}
-
-#if !defined (L_LNNO32)
-#define L_LNNO32(lp) ((lp)->l_lnno)
-#endif
-
-static void
-enter_linenos (file_offset, first_line, last_line, section_offsets)
- long file_offset;
- register int first_line;
- register int last_line;
- struct section_offsets *section_offsets;
-{
- register char *rawptr;
- struct internal_lineno lptr;
-
- if (!linetab)
- return ;
- if (file_offset < linetab_offset)
- {
- complain (&lineno_complaint, file_offset);
- if (file_offset > linetab_size) /* Too big to be an offset? */
- return;
- file_offset += linetab_offset; /* Try reading at that linetab offset */
- }
-
- rawptr = &linetab[file_offset - linetab_offset];
-
- /* skip first line entry for each function */
- rawptr += local_linesz;
- /* line numbers start at one for the first line of the function */
- first_line--;
-
- for (;;) {
- bfd_coff_swap_lineno_in (symfile_bfd, rawptr, &lptr);
- rawptr += local_linesz;
- /* The next function, or the sentinel, will have L_LNNO32 zero; we exit. */
- if (L_LNNO32 (&lptr) && L_LNNO32 (&lptr) <= last_line)
- coff_record_line (first_line + L_LNNO32 (&lptr),
- lptr.l_addr.l_paddr
- + ANOFFSET (section_offsets, SECT_OFF_TEXT));
- else
- break;
- }
-}
-
-static void
-patch_type (type, real_type)
- struct type *type;
- struct type *real_type;
-{
- register struct type *target = TYPE_TARGET_TYPE (type);
- register struct type *real_target = TYPE_TARGET_TYPE (real_type);
- int field_size = TYPE_NFIELDS (real_target) * sizeof (struct field);
-
- TYPE_LENGTH (target) = TYPE_LENGTH (real_target);
- TYPE_NFIELDS (target) = TYPE_NFIELDS (real_target);
- TYPE_FIELDS (target) = (struct field *) TYPE_ALLOC (target, field_size);
-
- memcpy (TYPE_FIELDS (target), TYPE_FIELDS (real_target), field_size);
-
- if (TYPE_NAME (real_target))
- {
- if (TYPE_NAME (target))
- free (TYPE_NAME (target));
- TYPE_NAME (target) = concat (TYPE_NAME (real_target), NULL);
- }
-}
-
-/* Patch up all appropriate typedef symbols in the opaque_type_chains
- so that they can be used to print out opaque data structures properly. */
-
-static void
-patch_opaque_types (s)
- struct symtab *s;
-{
- register struct block *b;
- register int i;
- register struct symbol *real_sym;
-
- /* Go through the per-file symbols only */
- b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK);
- for (i = BLOCK_NSYMS (b) - 1; i >= 0; i--)
- {
- /* Find completed typedefs to use to fix opaque ones.
- Remove syms from the chain when their types are stored,
- but search the whole chain, as there may be several syms
- from different files with the same name. */
- real_sym = BLOCK_SYM (b, i);
- if (SYMBOL_CLASS (real_sym) == LOC_TYPEDEF &&
- SYMBOL_NAMESPACE (real_sym) == VAR_NAMESPACE &&
- TYPE_CODE (SYMBOL_TYPE (real_sym)) == TYPE_CODE_PTR &&
- TYPE_LENGTH (TYPE_TARGET_TYPE (SYMBOL_TYPE (real_sym))) != 0)
- {
- register char *name = SYMBOL_NAME (real_sym);
- register int hash = hashname (name);
- register struct symbol *sym, *prev;
-
- prev = 0;
- for (sym = opaque_type_chain[hash]; sym;)
- {
- if (name[0] == SYMBOL_NAME (sym)[0] &&
- STREQ (name + 1, SYMBOL_NAME (sym) + 1))
- {
- if (prev)
- {
- SYMBOL_VALUE_CHAIN (prev) = SYMBOL_VALUE_CHAIN (sym);
- }
- else
- {
- opaque_type_chain[hash] = SYMBOL_VALUE_CHAIN (sym);
- }
-
- patch_type (SYMBOL_TYPE (sym), SYMBOL_TYPE (real_sym));
-
- if (prev)
- {
- sym = SYMBOL_VALUE_CHAIN (prev);
- }
- else
- {
- sym = opaque_type_chain[hash];
- }
- }
- else
- {
- prev = sym;
- sym = SYMBOL_VALUE_CHAIN (sym);
- }
- }
- }
- }
-}
-
-static struct symbol *
-process_coff_symbol (cs, aux, section_offsets, objfile)
- register struct coff_symbol *cs;
- register union internal_auxent *aux;
- struct section_offsets *section_offsets;
- struct objfile *objfile;
-{
- register struct symbol *sym
- = (struct symbol *) obstack_alloc (&objfile->symbol_obstack,
- sizeof (struct symbol));
- char *name;
-
- memset (sym, 0, sizeof (struct symbol));
- name = cs->c_name;
- name = EXTERNAL_NAME (name, objfile->obfd);
- SYMBOL_NAME (sym) = obsavestring (name, strlen (name),
- &objfile->symbol_obstack);
- SYMBOL_LANGUAGE (sym) = language_auto;
- SYMBOL_INIT_DEMANGLED_NAME (sym, &objfile->symbol_obstack);
-
- /* default assumptions */
- SYMBOL_VALUE (sym) = cs->c_value;
- SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
- SYMBOL_SECTION (sym) = cs_to_section (cs, objfile);
-
- if (ISFCN (cs->c_type))
- {
- SYMBOL_VALUE (sym) += ANOFFSET (section_offsets, SECT_OFF_TEXT);
- SYMBOL_TYPE(sym) =
- lookup_function_type (decode_function_type (cs, cs->c_type, aux));
-
- SYMBOL_CLASS (sym) = LOC_BLOCK;
- if (cs->c_sclass == C_STAT || cs->c_sclass == C_THUMBSTAT
- || cs->c_sclass == C_THUMBSTATFUNC)
- add_symbol_to_list (sym, &file_symbols);
- else if (cs->c_sclass == C_EXT || cs->c_sclass == C_THUMBEXT
- || cs->c_sclass == C_THUMBEXTFUNC)
- add_symbol_to_list (sym, &global_symbols);
- }
- else
- {
- SYMBOL_TYPE (sym) = decode_type (cs, cs->c_type, aux);
- switch (cs->c_sclass)
- {
- case C_NULL:
- break;
-
- case C_AUTO:
- SYMBOL_CLASS (sym) = LOC_LOCAL;
- add_symbol_to_list (sym, &local_symbols);
- break;
-
- case C_THUMBEXT:
- case C_THUMBEXTFUNC:
- case C_EXT:
- SYMBOL_CLASS (sym) = LOC_STATIC;
- SYMBOL_VALUE_ADDRESS (sym) = (CORE_ADDR) cs->c_value;
- SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (section_offsets, SECT_OFF_TEXT);
- add_symbol_to_list (sym, &global_symbols);
- break;
-
- case C_THUMBSTAT:
- case C_THUMBSTATFUNC:
- case C_STAT:
- SYMBOL_CLASS (sym) = LOC_STATIC;
- SYMBOL_VALUE_ADDRESS (sym) = (CORE_ADDR) cs->c_value;
- SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (section_offsets, SECT_OFF_TEXT);
- if (within_function) {
- /* Static symbol of local scope */
- add_symbol_to_list (sym, &local_symbols);
- }
- else {
- /* Static symbol at top level of file */
- add_symbol_to_list (sym, &file_symbols);
- }
- break;
-
-#ifdef C_GLBLREG /* AMD coff */
- case C_GLBLREG:
-#endif
- case C_REG:
- SYMBOL_CLASS (sym) = LOC_REGISTER;
- SYMBOL_VALUE (sym) = SDB_REG_TO_REGNUM(cs->c_value);
- add_symbol_to_list (sym, &local_symbols);
- break;
-
- case C_THUMBLABEL:
- case C_LABEL:
- break;
-
- case C_ARG:
- SYMBOL_CLASS (sym) = LOC_ARG;
- add_symbol_to_list (sym, &local_symbols);
-#if !defined (BELIEVE_PCC_PROMOTION)
- if (TARGET_BYTE_ORDER == BIG_ENDIAN)
- {
- /* If PCC says a parameter is a short or a char,
- aligned on an int boundary, realign it to the
- "little end" of the int. */
- struct type *temptype;
- temptype = lookup_fundamental_type (current_objfile,
- FT_INTEGER);
- if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (temptype)
- && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT
- && 0 == SYMBOL_VALUE (sym) % TYPE_LENGTH (temptype))
- {
- SYMBOL_VALUE (sym) +=
- TYPE_LENGTH (temptype)
- - TYPE_LENGTH (SYMBOL_TYPE (sym));
- }
- }
-#endif
- break;
-
- case C_REGPARM:
- SYMBOL_CLASS (sym) = LOC_REGPARM;
- SYMBOL_VALUE (sym) = SDB_REG_TO_REGNUM(cs->c_value);
- add_symbol_to_list (sym, &local_symbols);
-#if !defined (BELIEVE_PCC_PROMOTION)
- /* FIXME: This should retain the current type, since it's just
- a register value. gnu@adobe, 26Feb93 */
- {
- /* If PCC says a parameter is a short or a char,
- it is really an int. */
- struct type *temptype;
- temptype =
- lookup_fundamental_type (current_objfile, FT_INTEGER);
- if (TYPE_LENGTH (SYMBOL_TYPE (sym)) < TYPE_LENGTH (temptype)
- && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_INT)
- {
- SYMBOL_TYPE (sym) =
- (TYPE_UNSIGNED (SYMBOL_TYPE (sym))
- ? lookup_fundamental_type (current_objfile,
- FT_UNSIGNED_INTEGER)
- : temptype);
- }
- }
-#endif
- break;
-
- case C_TPDEF:
- SYMBOL_CLASS (sym) = LOC_TYPEDEF;
- SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
-
- /* If type has no name, give it one */
- if (TYPE_NAME (SYMBOL_TYPE (sym)) == 0)
- {
- if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_PTR
- || TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FUNC)
- {
- /* If we are giving a name to a type such as "pointer to
- foo" or "function returning foo", we better not set
- the TYPE_NAME. If the program contains "typedef char
- *caddr_t;", we don't want all variables of type char
- * to print as caddr_t. This is not just a
- consequence of GDB's type management; CC and GCC (at
- least through version 2.4) both output variables of
- either type char * or caddr_t with the type
- refering to the C_TPDEF symbol for caddr_t. If a future
- compiler cleans this up it GDB is not ready for it
- yet, but if it becomes ready we somehow need to
- disable this check (without breaking the PCC/GCC2.4
- case).
-
- Sigh.
-
- Fortunately, this check seems not to be necessary
- for anything except pointers or functions. */
- ;
- }
- else
- TYPE_NAME (SYMBOL_TYPE (sym)) =
- concat (SYMBOL_NAME (sym), NULL);
- }
-#ifdef CXUX_TARGET
- /* Ignore vendor section for Harris CX/UX targets. */
- else if (cs->c_name[0] == '$')
- break;
-#endif /* CXUX_TARGET */
-
- /* Keep track of any type which points to empty structured type,
- so it can be filled from a definition from another file. A
- simple forward reference (TYPE_CODE_UNDEF) is not an
- empty structured type, though; the forward references
- work themselves out via the magic of coff_lookup_type. */
- if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_PTR &&
- TYPE_LENGTH (TYPE_TARGET_TYPE (SYMBOL_TYPE (sym))) == 0 &&
- TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (sym))) !=
- TYPE_CODE_UNDEF)
- {
- register int i = hashname (SYMBOL_NAME (sym));
-
- SYMBOL_VALUE_CHAIN (sym) = opaque_type_chain[i];
- opaque_type_chain[i] = sym;
- }
- add_symbol_to_list (sym, &file_symbols);
- break;
-
- case C_STRTAG:
- case C_UNTAG:
- case C_ENTAG:
- SYMBOL_CLASS (sym) = LOC_TYPEDEF;
- SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE;
-
- /* Some compilers try to be helpful by inventing "fake"
- names for anonymous enums, structures, and unions, like
- "~0fake" or ".0fake". Thanks, but no thanks... */
- if (TYPE_TAG_NAME (SYMBOL_TYPE (sym)) == 0)
- if (SYMBOL_NAME(sym) != NULL
- && *SYMBOL_NAME(sym) != '~'
- && *SYMBOL_NAME(sym) != '.')
- TYPE_TAG_NAME (SYMBOL_TYPE (sym)) =
- concat (SYMBOL_NAME (sym), NULL);
-
- add_symbol_to_list (sym, &file_symbols);
- break;
-
- default:
- break;
- }
- }
- return sym;
-}
-
-/* Decode a coff type specifier; return the type that is meant. */
-
-static struct type *
-decode_type (cs, c_type, aux)
- register struct coff_symbol *cs;
- unsigned int c_type;
- register union internal_auxent *aux;
-{
- register struct type *type = 0;
- unsigned int new_c_type;
-
- if (c_type & ~N_BTMASK)
- {
- new_c_type = DECREF (c_type);
- if (ISPTR (c_type))
- {
- type = decode_type (cs, new_c_type, aux);
- type = lookup_pointer_type (type);
- }
- else if (ISFCN (c_type))
- {
- type = decode_type (cs, new_c_type, aux);
- type = lookup_function_type (type);
- }
- else if (ISARY (c_type))
- {
- int i, n;
- register unsigned short *dim;
- struct type *base_type, *index_type, *range_type;
-
- /* Define an array type. */
- /* auxent refers to array, not base type */
- if (aux->x_sym.x_tagndx.l == 0)
- cs->c_naux = 0;
-
- /* shift the indices down */
- dim = &aux->x_sym.x_fcnary.x_ary.x_dimen[0];
- i = 1;
- n = dim[0];
- for (i = 0; *dim && i < DIMNUM - 1; i++, dim++)
- *dim = *(dim + 1);
- *dim = 0;
-
- base_type = decode_type (cs, new_c_type, aux);
- index_type = lookup_fundamental_type (current_objfile, FT_INTEGER);
- range_type =
- create_range_type ((struct type *) NULL, index_type, 0, n - 1);
- type =
- create_array_type ((struct type *) NULL, base_type, range_type);
- }
- return type;
- }
-
- /* Reference to existing type. This only occurs with the
- struct, union, and enum types. EPI a29k coff
- fakes us out by producing aux entries with a nonzero
- x_tagndx for definitions of structs, unions, and enums, so we
- have to check the c_sclass field. SCO 3.2v4 cc gets confused
- with pointers to pointers to defined structs, and generates
- negative x_tagndx fields. */
- if (cs->c_naux > 0 && aux->x_sym.x_tagndx.l != 0)
- {
- if (cs->c_sclass != C_STRTAG
- && cs->c_sclass != C_UNTAG
- && cs->c_sclass != C_ENTAG
- && aux->x_sym.x_tagndx.l >= 0)
- {
- type = coff_alloc_type (aux->x_sym.x_tagndx.l);
- return type;
- }
- else
- {
- complain (&tagndx_bad_complaint, cs->c_name);
- /* And fall through to decode_base_type... */
- }
- }
-
- return decode_base_type (cs, BTYPE (c_type), aux);
-}
-
-/* Decode a coff type specifier for function definition;
- return the type that the function returns. */
-
-static struct type *
-decode_function_type (cs, c_type, aux)
- register struct coff_symbol *cs;
- unsigned int c_type;
- register union internal_auxent *aux;
-{
- if (aux->x_sym.x_tagndx.l == 0)
- cs->c_naux = 0; /* auxent refers to function, not base type */
-
- return decode_type (cs, DECREF (c_type), aux);
-}
-
-/* basic C types */
-
-static struct type *
-decode_base_type (cs, c_type, aux)
- register struct coff_symbol *cs;
- unsigned int c_type;
- register union internal_auxent *aux;
-{
- struct type *type;
-
- switch (c_type)
- {
- case T_NULL:
- /* shows up with "void (*foo)();" structure members */
- return lookup_fundamental_type (current_objfile, FT_VOID);
-
-#if 0
-/* DGUX actually defines both T_ARG and T_VOID to the same value. */
-#ifdef T_ARG
- case T_ARG:
- /* Shows up in DGUX, I think. Not sure where. */
- return lookup_fundamental_type (current_objfile, FT_VOID); /* shouldn't show up here */
-#endif
-#endif /* 0 */
-
-#ifdef T_VOID
- case T_VOID:
- /* Intel 960 COFF has this symbol and meaning. */
- return lookup_fundamental_type (current_objfile, FT_VOID);
-#endif
-
- case T_CHAR:
- return lookup_fundamental_type (current_objfile, FT_CHAR);
-
- case T_SHORT:
- return lookup_fundamental_type (current_objfile, FT_SHORT);
-
- case T_INT:
- return lookup_fundamental_type (current_objfile, FT_INTEGER);
-
- case T_LONG:
- if (cs->c_sclass == C_FIELD
- && aux->x_sym.x_misc.x_lnsz.x_size > TARGET_LONG_BIT)
- return lookup_fundamental_type (current_objfile, FT_LONG_LONG);
- else
- return lookup_fundamental_type (current_objfile, FT_LONG);
-
- case T_FLOAT:
- return lookup_fundamental_type (current_objfile, FT_FLOAT);
-
- case T_DOUBLE:
- return lookup_fundamental_type (current_objfile, FT_DBL_PREC_FLOAT);
-
- case T_LNGDBL:
- return lookup_fundamental_type (current_objfile, FT_EXT_PREC_FLOAT);
-
- case T_STRUCT:
- if (cs->c_naux != 1)
- {
- /* anonymous structure type */
- type = coff_alloc_type (cs->c_symnum);
- TYPE_CODE (type) = TYPE_CODE_STRUCT;
- TYPE_NAME (type) = NULL;
- /* This used to set the tag to "<opaque>". But I think setting it
- to NULL is right, and the printing code can print it as
- "struct {...}". */
- TYPE_TAG_NAME (type) = NULL;
- INIT_CPLUS_SPECIFIC(type);
- TYPE_LENGTH (type) = 0;
- TYPE_FIELDS (type) = 0;
- TYPE_NFIELDS (type) = 0;
- }
- else
- {
- type = coff_read_struct_type (cs->c_symnum,
- aux->x_sym.x_misc.x_lnsz.x_size,
- aux->x_sym.x_fcnary.x_fcn.x_endndx.l);
- }
- return type;
-
- case T_UNION:
- if (cs->c_naux != 1)
- {
- /* anonymous union type */
- type = coff_alloc_type (cs->c_symnum);
- TYPE_NAME (type) = NULL;
- /* This used to set the tag to "<opaque>". But I think setting it
- to NULL is right, and the printing code can print it as
- "union {...}". */
- TYPE_TAG_NAME (type) = NULL;
- INIT_CPLUS_SPECIFIC(type);
- TYPE_LENGTH (type) = 0;
- TYPE_FIELDS (type) = 0;
- TYPE_NFIELDS (type) = 0;
- }
- else
- {
- type = coff_read_struct_type (cs->c_symnum,
- aux->x_sym.x_misc.x_lnsz.x_size,
- aux->x_sym.x_fcnary.x_fcn.x_endndx.l);
- }
- TYPE_CODE (type) = TYPE_CODE_UNION;
- return type;
-
- case T_ENUM:
- if (cs->c_naux != 1)
- {
- /* anonymous enum type */
- type = coff_alloc_type (cs->c_symnum);
- TYPE_CODE (type) = TYPE_CODE_ENUM;
- TYPE_NAME (type) = NULL;
- /* This used to set the tag to "<opaque>". But I think setting it
- to NULL is right, and the printing code can print it as
- "enum {...}". */
- TYPE_TAG_NAME (type) = NULL;
- TYPE_LENGTH (type) = 0;
- TYPE_FIELDS (type) = 0;
- TYPE_NFIELDS(type) = 0;
- }
- else
- {
- type = coff_read_enum_type (cs->c_symnum,
- aux->x_sym.x_misc.x_lnsz.x_size,
- aux->x_sym.x_fcnary.x_fcn.x_endndx.l);
- }
- return type;
-
- case T_MOE:
- /* shouldn't show up here */
- break;
-
- case T_UCHAR:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_CHAR);
-
- case T_USHORT:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_SHORT);
-
- case T_UINT:
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_INTEGER);
-
- case T_ULONG:
- if (cs->c_sclass == C_FIELD
- && aux->x_sym.x_misc.x_lnsz.x_size > TARGET_LONG_BIT)
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_LONG_LONG);
- else
- return lookup_fundamental_type (current_objfile, FT_UNSIGNED_LONG);
- }
- complain (&unexpected_type_complaint, cs->c_name);
- return lookup_fundamental_type (current_objfile, FT_VOID);
-}
-
-/* This page contains subroutines of read_type. */
-
-/* Read the description of a structure (or union type) and return an
- object describing the type. */
-
-static struct type *
-coff_read_struct_type (index, length, lastsym)
- int index;
- int length;
- int lastsym;
-{
- struct nextfield
- {
- struct nextfield *next;
- struct field field;
- };
-
- register struct type *type;
- register struct nextfield *list = 0;
- struct nextfield *new;
- int nfields = 0;
- register int n;
- char *name;
- struct coff_symbol member_sym;
- register struct coff_symbol *ms = &member_sym;
- struct internal_syment sub_sym;
- union internal_auxent sub_aux;
- int done = 0;
-
- type = coff_alloc_type (index);
- TYPE_CODE (type) = TYPE_CODE_STRUCT;
- INIT_CPLUS_SPECIFIC(type);
- TYPE_LENGTH (type) = length;
-
- while (!done && symnum < lastsym && symnum < nlist_nsyms_global)
- {
- read_one_sym (ms, &sub_sym, &sub_aux);
- name = ms->c_name;
- name = EXTERNAL_NAME (name, current_objfile->obfd);
-
- switch (ms->c_sclass)
- {
- case C_MOS:
- case C_MOU:
-
- /* Get space to record the next field's data. */
- new = (struct nextfield *) alloca (sizeof (struct nextfield));
- new->next = list;
- list = new;
-
- /* Save the data. */
- list->field.name =
- obsavestring (name,
- strlen (name),
- &current_objfile->symbol_obstack);
- FIELD_TYPE (list->field) = decode_type (ms, ms->c_type, &sub_aux);
- FIELD_BITPOS (list->field) = 8 * ms->c_value;
- FIELD_BITSIZE (list->field) = 0;
- nfields++;
- break;
-
- case C_FIELD:
-
- /* Get space to record the next field's data. */
- new = (struct nextfield *) alloca (sizeof (struct nextfield));
- new->next = list;
- list = new;
-
- /* Save the data. */
- list->field.name =
- obsavestring (name,
- strlen (name),
- &current_objfile->symbol_obstack);
- FIELD_TYPE (list->field) = decode_type (ms, ms->c_type, &sub_aux);
- FIELD_BITPOS (list->field) = ms->c_value;
- FIELD_BITSIZE (list->field) = sub_aux.x_sym.x_misc.x_lnsz.x_size;
- nfields++;
- break;
-
- case C_EOS:
- done = 1;
- break;
- }
- }
- /* Now create the vector of fields, and record how big it is. */
-
- TYPE_NFIELDS (type) = nfields;
- TYPE_FIELDS (type) = (struct field *)
- TYPE_ALLOC (type, sizeof (struct field) * nfields);
-
- /* Copy the saved-up fields into the field vector. */
-
- for (n = nfields; list; list = list->next)
- TYPE_FIELD (type, --n) = list->field;
-
- return type;
-}
-
-/* Read a definition of an enumeration type,
- and create and return a suitable type object.
- Also defines the symbols that represent the values of the type. */
-
-/* ARGSUSED */
-static struct type *
-coff_read_enum_type (index, length, lastsym)
- int index;
- int length;
- int lastsym;
-{
- register struct symbol *sym;
- register struct type *type;
- int nsyms = 0;
- int done = 0;
- struct pending **symlist;
- struct coff_symbol member_sym;
- register struct coff_symbol *ms = &member_sym;
- struct internal_syment sub_sym;
- union internal_auxent sub_aux;
- struct pending *osyms, *syms;
- int o_nsyms;
- register int n;
- char *name;
- int unsigned_enum = 1;
-
- type = coff_alloc_type (index);
- if (within_function)
- symlist = &local_symbols;
- else
- symlist = &file_symbols;
- osyms = *symlist;
- o_nsyms = osyms ? osyms->nsyms : 0;
-
- while (!done && symnum < lastsym && symnum < nlist_nsyms_global)
- {
- read_one_sym (ms, &sub_sym, &sub_aux);
- name = ms->c_name;
- name = EXTERNAL_NAME (name, current_objfile->obfd);
-
- switch (ms->c_sclass)
- {
- case C_MOE:
- sym = (struct symbol *) obstack_alloc
- (&current_objfile->symbol_obstack,
- sizeof (struct symbol));
- memset (sym, 0, sizeof (struct symbol));
-
- SYMBOL_NAME (sym) =
- obsavestring (name, strlen (name),
- &current_objfile->symbol_obstack);
- SYMBOL_CLASS (sym) = LOC_CONST;
- SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
- SYMBOL_VALUE (sym) = ms->c_value;
- add_symbol_to_list (sym, symlist);
- nsyms++;
- break;
-
- case C_EOS:
- /* Sometimes the linker (on 386/ix 2.0.2 at least) screws
- up the count of how many symbols to read. So stop
- on .eos. */
- done = 1;
- break;
- }
- }
-
- /* Now fill in the fields of the type-structure. */
-
- if (length > 0)
- TYPE_LENGTH (type) = length;
- else
- TYPE_LENGTH (type) = TARGET_INT_BIT / TARGET_CHAR_BIT; /* Assume ints */
- TYPE_CODE (type) = TYPE_CODE_ENUM;
- TYPE_NFIELDS (type) = nsyms;
- TYPE_FIELDS (type) = (struct field *)
- TYPE_ALLOC (type, sizeof (struct field) * nsyms);
-
- /* Find the symbols for the values and put them into the type.
- The symbols can be found in the symlist that we put them on
- to cause them to be defined. osyms contains the old value
- of that symlist; everything up to there was defined by us. */
- /* Note that we preserve the order of the enum constants, so
- that in something like "enum {FOO, LAST_THING=FOO}" we print
- FOO, not LAST_THING. */
-
- for (syms = *symlist, n = 0; syms; syms = syms->next)
- {
- int j = 0;
-
- if (syms == osyms)
- j = o_nsyms;
- for (; j < syms->nsyms; j++,n++)
- {
- struct symbol *xsym = syms->symbol[j];
- SYMBOL_TYPE (xsym) = type;
- TYPE_FIELD_NAME (type, n) = SYMBOL_NAME (xsym);
- TYPE_FIELD_BITPOS (type, n) = SYMBOL_VALUE (xsym);
- if (SYMBOL_VALUE (xsym) < 0)
- unsigned_enum = 0;
- TYPE_FIELD_BITSIZE (type, n) = 0;
- }
- if (syms == osyms)
- break;
- }
-
- if (unsigned_enum)
- TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED;
-
- return type;
-}
-
-/* Register our ability to parse symbols for coff BFD files. */
-
-static struct sym_fns coff_sym_fns =
-{
- bfd_target_coff_flavour,
- coff_new_init, /* sym_new_init: init anything gbl to entire symtab */
- coff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
- coff_symfile_read, /* sym_read: read a symbol file into symtab */
- coff_symfile_finish, /* sym_finish: finished with file, cleanup */
- default_symfile_offsets,
- /* sym_offsets: xlate external to internal form */
- NULL /* next: pointer to next struct sym_fns */
-};
-
-void
-_initialize_coffread ()
-{
- add_symtab_fns (&coff_sym_fns);
-}