/* Generic symbol file reading for the GNU debugger, GDB.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001 Free Software Foundation, Inc.
+
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+
Contributed by Cygnus Support, using pieces from other GDB modules.
This file is part of GDB.
Boston, MA 02111-1307, USA. */
#include "defs.h"
+#include "bfdlink.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "gdbcore.h"
#include "value.h"
#include "symfile.h"
#include "objfiles.h"
+#include "source.h"
#include "gdbcmd.h"
#include "breakpoint.h"
#include "language.h"
#include "complaints.h"
#include "demangle.h"
#include "inferior.h" /* for write_pc */
+#include "filenames.h" /* for DOSish file names */
#include "gdb-stabs.h"
-#include "obstack.h"
+#include "gdb_obstack.h"
#include "completer.h"
+#include "bcache.h"
+#include "hashtab.h"
+#include <readline/readline.h>
+#include "gdb_assert.h"
+#include "block.h"
#include <sys/types.h>
#include <fcntl.h>
/* Global variables owned by this file */
int readnow_symbol_files; /* Read full symbols immediately */
-struct complaint oldsyms_complaint =
-{
- "Replacing old symbols for `%s'", 0, 0
-};
-
-struct complaint empty_symtab_complaint =
-{
- "Empty symbol table found for `%s'", 0, 0
-};
-
-struct complaint unknown_option_complaint =
-{
- "Unknown option `%s' ignored", 0, 0
-};
-
/* External variables and functions referenced. */
extern void report_transfer_performance (unsigned long, time_t, time_t);
static void add_shared_symbol_files_command (char *, int);
+static void reread_separate_symbols (struct objfile *objfile);
+
static void cashier_psymtab (struct partial_symtab *);
bfd *symfile_bfd_open (char *);
+int get_section_index (struct objfile *, char *);
+
static void find_sym_fns (struct objfile *);
static void decrement_reading_symtab (void *);
static void info_ext_lang_command (char *args, int from_tty);
+static char *find_separate_debug_file (struct objfile *objfile);
+
static void init_filename_language_table (void);
void _initialize_symfile (void);
s1 = (struct symbol **) s1p;
s2 = (struct symbol **) s2p;
- return (strcmp (SYMBOL_SOURCE_NAME (*s1), SYMBOL_SOURCE_NAME (*s2)));
+ return (strcmp (SYMBOL_NATURAL_NAME (*s1), SYMBOL_NATURAL_NAME (*s2)));
}
-/*
-
- LOCAL FUNCTION
-
- compare_psymbols -- compare two partial symbols by name
-
- DESCRIPTION
-
- Given pointers to pointers to two partial symbol table entries,
- compare them by name and return -N, 0, or +N (ala strcmp).
- Typically used by sorting routines like qsort().
-
- NOTES
-
- Does direct compare of first two characters before punting
- and passing to strcmp for longer compares. Note that the
- original version had a bug whereby two null strings or two
- identically named one character strings would return the
- comparison of memory following the null byte.
-
- */
+/* This compares two partial symbols by names, using strcmp_iw_ordered
+ for the comparison. */
static int
compare_psymbols (const void *s1p, const void *s2p)
{
- register struct partial_symbol **s1, **s2;
- register char *st1, *st2;
+ struct partial_symbol *const *s1 = s1p;
+ struct partial_symbol *const *s2 = s2p;
- s1 = (struct partial_symbol **) s1p;
- s2 = (struct partial_symbol **) s2p;
- st1 = SYMBOL_SOURCE_NAME (*s1);
- st2 = SYMBOL_SOURCE_NAME (*s2);
-
-
- if ((st1[0] - st2[0]) || !st1[0])
- {
- return (st1[0] - st2[0]);
- }
- else if ((st1[1] - st2[1]) || !st1[1])
- {
- return (st1[1] - st2[1]);
- }
- else
- {
- return (strcmp (st1, st2));
- }
+ return strcmp_iw_ordered (SYMBOL_NATURAL_NAME (*s1),
+ SYMBOL_NATURAL_NAME (*s2));
}
void
may be part of a larger string and we are only saving a substring. */
char *
-obsavestring (char *ptr, int size, struct obstack *obstackp)
+obsavestring (const char *ptr, int size, struct obstack *obstackp)
{
register char *p = (char *) obstack_alloc (obstackp, size + 1);
/* Open-coded memcpy--saves function call time. These strings are usually
short. FIXME: Is this really still true with a compiler that can
inline memcpy? */
{
- register char *p1 = ptr;
+ register const char *p1 = ptr;
register char *p2 = p;
- char *end = ptr + size;
+ const char *end = ptr + size;
while (p1 != end)
*p2++ = *p1++;
}
lowest-addressed loadable section. */
void
-find_lowest_section (bfd *abfd, asection *sect, PTR obj)
+find_lowest_section (bfd *abfd, asection *sect, void *obj)
{
asection **lowest = (asection **) obj;
for (stp = start, oidx = 0; stp != end; stp++)
{
- if (stp->the_bfd_section->flags & (SEC_ALLOC | SEC_LOAD)
+ if (bfd_get_section_flags (stp->bfd,
+ stp->the_bfd_section) & (SEC_ALLOC | SEC_LOAD)
&& oidx < MAX_SECTIONS)
{
sap->other[oidx].addr = stp->addr;
- sap->other[oidx].name = xstrdup (stp->the_bfd_section->name);
+ sap->other[oidx].name
+ = xstrdup (bfd_section_name (stp->bfd, stp->the_bfd_section));
sap->other[oidx].sectindex = stp->the_bfd_section->index;
oidx++;
}
}
+/* Initialize OBJFILE's sect_index_* members. */
+static void
+init_objfile_sect_indices (struct objfile *objfile)
+{
+ asection *sect;
+ int i;
+
+ sect = bfd_get_section_by_name (objfile->obfd, ".text");
+ if (sect)
+ objfile->sect_index_text = sect->index;
+
+ sect = bfd_get_section_by_name (objfile->obfd, ".data");
+ if (sect)
+ objfile->sect_index_data = sect->index;
+
+ sect = bfd_get_section_by_name (objfile->obfd, ".bss");
+ if (sect)
+ objfile->sect_index_bss = sect->index;
+
+ sect = bfd_get_section_by_name (objfile->obfd, ".rodata");
+ if (sect)
+ objfile->sect_index_rodata = sect->index;
+
+ /* This is where things get really weird... We MUST have valid
+ indices for the various sect_index_* members or gdb will abort.
+ So if for example, there is no ".text" section, we have to
+ accomodate that. Except when explicitly adding symbol files at
+ some address, section_offsets contains nothing but zeros, so it
+ doesn't matter which slot in section_offsets the individual
+ sect_index_* members index into. So if they are all zero, it is
+ safe to just point all the currently uninitialized indices to the
+ first slot. */
+
+ for (i = 0; i < objfile->num_sections; i++)
+ {
+ if (ANOFFSET (objfile->section_offsets, i) != 0)
+ {
+ break;
+ }
+ }
+ if (i == objfile->num_sections)
+ {
+ if (objfile->sect_index_text == -1)
+ objfile->sect_index_text = 0;
+ if (objfile->sect_index_data == -1)
+ objfile->sect_index_data = 0;
+ if (objfile->sect_index_bss == -1)
+ objfile->sect_index_bss = 0;
+ if (objfile->sect_index_rodata == -1)
+ objfile->sect_index_rodata = 0;
+ }
+}
+
+
/* Parse the user's idea of an offset for dynamic linking, into our idea
of how to represent it for fast symbol reading. This is the default
version of the sym_fns.sym_offsets function for symbol readers that
struct section_addr_info *addrs)
{
int i;
- asection *sect = NULL;
objfile->num_sections = SECT_OFF_MAX;
objfile->section_offsets = (struct section_offsets *)
/* Remember the bfd indexes for the .text, .data, .bss and
.rodata sections. */
-
- sect = bfd_get_section_by_name (objfile->obfd, ".text");
- if (sect)
- objfile->sect_index_text = sect->index;
-
- sect = bfd_get_section_by_name (objfile->obfd, ".data");
- if (sect)
- objfile->sect_index_data = sect->index;
-
- sect = bfd_get_section_by_name (objfile->obfd, ".bss");
- if (sect)
- objfile->sect_index_bss = sect->index;
-
- sect = bfd_get_section_by_name (objfile->obfd, ".rodata");
- if (sect)
- objfile->sect_index_rodata = sect->index;
-
+ init_objfile_sect_indices (objfile);
}
+
/* Process a symbol file, as either the main file or as a dynamically
loaded file.
OBJFILE is where the symbols are to be read from.
- ADDR is the address where the text segment was loaded, unless the
- objfile is the main symbol file, in which case it is zero.
+ ADDRS is the list of section load addresses. If the user has given
+ an 'add-symbol-file' command, then this is the list of offsets and
+ addresses he or she provided as arguments to the command; or, if
+ we're handling a shared library, these are the actual addresses the
+ sections are loaded at, according to the inferior's dynamic linker
+ (as gleaned by GDB's shared library code). We convert each address
+ into an offset from the section VMA's as it appears in the object
+ file, and then call the file's sym_offsets function to convert this
+ into a format-specific offset table --- a `struct section_offsets'.
+ If ADDRS is non-zero, OFFSETS must be zero.
+
+ OFFSETS is a table of section offsets already in the right
+ format-specific representation. NUM_OFFSETS is the number of
+ elements present in OFFSETS->offsets. If OFFSETS is non-zero, we
+ assume this is the proper table the call to sym_offsets described
+ above would produce. Instead of calling sym_offsets, we just dump
+ it right into objfile->section_offsets. (When we're re-reading
+ symbols from an objfile, we don't have the original load address
+ list any more; all we have is the section offset table.) If
+ OFFSETS is non-zero, ADDRS must be zero.
MAINLINE is nonzero if this is the main symbol file, or zero if
it's an extra symbol file such as dynamically loaded code.
the symbol reading (and complaints can be more terse about it). */
void
-syms_from_objfile (struct objfile *objfile, struct section_addr_info *addrs,
- int mainline, int verbo)
+syms_from_objfile (struct objfile *objfile,
+ struct section_addr_info *addrs,
+ struct section_offsets *offsets,
+ int num_offsets,
+ int mainline,
+ int verbo)
{
asection *lower_sect;
asection *sect;
struct cleanup *old_chain;
int i;
- /* If ADDRS is NULL, initialize the local section_addr_info struct and
- point ADDRS to it. We now establish the convention that an addr of
- zero means no load address was specified. */
+ gdb_assert (! (addrs && offsets));
- if (addrs == NULL)
+ /* If ADDRS and OFFSETS are both NULL, put together a dummy address
+ list. We now establish the convention that an addr of zero means
+ no load address was specified. */
+ if (! addrs && ! offsets)
{
memset (&local_addr, 0, sizeof (local_addr));
addrs = &local_addr;
}
+ /* Now either addrs or offsets is non-zero. */
+
init_entry_point_info (objfile);
find_sym_fns (objfile);
+ if (objfile->sf == NULL)
+ return; /* No symbols. */
+
/* Make sure that partially constructed symbol tables will be cleaned up
if an error occurs during symbol reading. */
old_chain = make_cleanup_free_objfile (objfile);
lower_sect = bfd_get_section_by_name (objfile->obfd, ".text");
if (lower_sect == NULL)
bfd_map_over_sections (objfile->obfd, find_lowest_section,
- (PTR) &lower_sect);
+ &lower_sect);
if (lower_sect == NULL)
warning ("no loadable sections found in added symbol-file %s",
objfile->name);
else
lower_offset = 0;
- /* Calculate offsets for the loadable sections.
+ /* Calculate offsets for the loadable sections.
FIXME! Sections must be in order of increasing loadable section
so that contiguous sections can use the lower-offset!!!
- Adjust offsets if the segments are not contiguous.
- If the section is contiguous, its offset should be set to
+ Adjust offsets if the segments are not contiguous.
+ If the section is contiguous, its offset should be set to
the offset of the highest loadable section lower than it
(the loadable section directly below it in memory).
this_offset = lower_offset = lower_addr - lower_orig_addr */
- /* Calculate offsets for sections. */
- for (i=0 ; i < MAX_SECTIONS && addrs->other[i].name; i++)
- {
- if (addrs->other[i].addr != 0)
- {
- sect = bfd_get_section_by_name (objfile->obfd, addrs->other[i].name);
- if (sect)
- {
- addrs->other[i].addr -= bfd_section_vma (objfile->obfd, sect);
- lower_offset = addrs->other[i].addr;
- /* This is the index used by BFD. */
- addrs->other[i].sectindex = sect->index ;
- }
- else
- {
- warning ("section %s not found in %s", addrs->other[i].name,
- objfile->name);
- addrs->other[i].addr = 0;
- }
- }
- else
- addrs->other[i].addr = lower_offset;
- }
+ /* Calculate offsets for sections. */
+ if (addrs)
+ for (i=0 ; i < MAX_SECTIONS && addrs->other[i].name; i++)
+ {
+ if (addrs->other[i].addr != 0)
+ {
+ sect = bfd_get_section_by_name (objfile->obfd,
+ addrs->other[i].name);
+ if (sect)
+ {
+ addrs->other[i].addr
+ -= bfd_section_vma (objfile->obfd, sect);
+ lower_offset = addrs->other[i].addr;
+ /* This is the index used by BFD. */
+ addrs->other[i].sectindex = sect->index ;
+ }
+ else
+ {
+ warning ("section %s not found in %s",
+ addrs->other[i].name,
+ objfile->name);
+ addrs->other[i].addr = 0;
+ }
+ }
+ else
+ addrs->other[i].addr = lower_offset;
+ }
}
/* Initialize symbol reading routines for this objfile, allow complaints to
initial symbol reading for this file. */
(*objfile->sf->sym_init) (objfile);
- clear_complaints (1, verbo);
+ clear_complaints (&symfile_complaints, 1, verbo);
- (*objfile->sf->sym_offsets) (objfile, addrs);
+ if (addrs)
+ (*objfile->sf->sym_offsets) (objfile, addrs);
+ else
+ {
+ size_t size = SIZEOF_N_SECTION_OFFSETS (num_offsets);
+
+ /* Just copy in the offset table directly as given to us. */
+ objfile->num_sections = num_offsets;
+ objfile->section_offsets
+ = ((struct section_offsets *)
+ obstack_alloc (&objfile->psymbol_obstack, size));
+ memcpy (objfile->section_offsets, offsets, size);
+
+ init_objfile_sect_indices (objfile);
+ }
#ifndef IBM6000_TARGET
/* This is a SVR4/SunOS specific hack, I think. In any event, it
for (i = 0;
!s_addr && i < MAX_SECTIONS && addrs->other[i].name;
i++)
- if (strcmp (s->the_bfd_section->name, addrs->other[i].name) == 0)
+ if (strcmp (bfd_section_name (s->objfile->obfd,
+ s->the_bfd_section),
+ addrs->other[i].name) == 0)
s_addr = addrs->other[i].addr; /* end added for gdb/13815 */
s->addr -= s->offset;
(*objfile->sf->sym_read) (objfile, mainline);
- if (!have_partial_symbols () && !have_full_symbols ())
- {
- wrap_here ("");
- printf_filtered ("(no debugging symbols found)...");
- wrap_here ("");
- }
-
/* Don't allow char * to have a typename (else would get caddr_t).
Ditto void *. FIXME: Check whether this is now done by all the
symbol readers themselves (many of them now do), and if so remove
}
/* We're done reading the symbol file; finish off complaints. */
- clear_complaints (0, verbo);
+ clear_complaints (&symfile_complaints, 0, verbo);
}
/* Process a symbol file, as either the main file or as a dynamically
NAME is the file name (which will be tilde-expanded and made
absolute herein) (but we don't free or modify NAME itself).
- FROM_TTY says how verbose to be. MAINLINE specifies whether this
- is the main symbol file, or whether it's an extra symbol file such
- as dynamically loaded code. If !mainline, ADDR is the address
- where the text segment was loaded.
+
+ FROM_TTY says how verbose to be.
+
+ MAINLINE specifies whether this is the main symbol file, or whether
+ it's an extra symbol file such as dynamically loaded code.
+
+ ADDRS, OFFSETS, and NUM_OFFSETS are as described for
+ syms_from_objfile, above. ADDRS is ignored when MAINLINE is
+ non-zero.
Upon success, returns a pointer to the objfile that was added.
Upon failure, jumps back to command level (never returns). */
-
-struct objfile *
-symbol_file_add (char *name, int from_tty, struct section_addr_info *addrs,
- int mainline, int flags)
+static struct objfile *
+symbol_file_add_with_addrs_or_offsets (char *name, int from_tty,
+ struct section_addr_info *addrs,
+ struct section_offsets *offsets,
+ int num_offsets,
+ int mainline, int flags)
{
struct objfile *objfile;
struct partial_symtab *psymtab;
+ char *debugfile;
bfd *abfd;
+ struct section_addr_info orig_addrs;
+
+ if (addrs)
+ orig_addrs = *addrs;
/* Open a bfd for the file, and give user a chance to burp if we'd be
interactively wiping out any existing symbols. */
gdb_flush (gdb_stdout);
}
}
- syms_from_objfile (objfile, addrs, mainline, from_tty);
+ syms_from_objfile (objfile, addrs, offsets, num_offsets,
+ mainline, from_tty);
}
/* We now have at least a partial symbol table. Check to see if the
}
}
+ debugfile = find_separate_debug_file (objfile);
+ if (debugfile)
+ {
+ if (addrs != NULL)
+ {
+ objfile->separate_debug_objfile
+ = symbol_file_add (debugfile, from_tty, &orig_addrs, 0, flags);
+ }
+ else
+ {
+ objfile->separate_debug_objfile
+ = symbol_file_add (debugfile, from_tty, NULL, 0, flags);
+ }
+ objfile->separate_debug_objfile->separate_debug_objfile_backlink
+ = objfile;
+
+ /* Put the separate debug object before the normal one, this is so that
+ usage of the ALL_OBJFILES_SAFE macro will stay safe. */
+ put_objfile_before (objfile->separate_debug_objfile, objfile);
+
+ xfree (debugfile);
+ }
+
+ if (!have_partial_symbols () && !have_full_symbols ())
+ {
+ wrap_here ("");
+ printf_filtered ("(no debugging symbols found)...");
+ wrap_here ("");
+ }
+
if (from_tty || info_verbose)
{
if (post_add_symbol_hook)
else
{
printf_filtered ("done.\n");
- gdb_flush (gdb_stdout);
}
}
+ /* We print some messages regardless of whether 'from_tty ||
+ info_verbose' is true, so make sure they go out at the right
+ time. */
+ gdb_flush (gdb_stdout);
+
+ if (objfile->sf == NULL)
+ return objfile; /* No symbols. */
+
new_symfile_objfile (objfile, mainline, from_tty);
if (target_new_objfile_hook)
return (objfile);
}
+
+/* Process a symbol file, as either the main file or as a dynamically
+ loaded file. See symbol_file_add_with_addrs_or_offsets's comments
+ for details. */
+struct objfile *
+symbol_file_add (char *name, int from_tty, struct section_addr_info *addrs,
+ int mainline, int flags)
+{
+ return symbol_file_add_with_addrs_or_offsets (name, from_tty, addrs, 0, 0,
+ mainline, flags);
+}
+
+
/* Call symbol_file_add() with default values and update whatever is
affected by the loading of a new main().
Used when the file is supplied in the gdb command line
#endif
}
+static char *
+get_debug_link_info (struct objfile *objfile, unsigned long *crc32_out)
+{
+ asection *sect;
+ bfd_size_type debuglink_size;
+ unsigned long crc32;
+ char *contents;
+ int crc_offset;
+ unsigned char *p;
+
+ sect = bfd_get_section_by_name (objfile->obfd, ".gnu_debuglink");
+
+ if (sect == NULL)
+ return NULL;
+
+ debuglink_size = bfd_section_size (objfile->obfd, sect);
+
+ contents = xmalloc (debuglink_size);
+ bfd_get_section_contents (objfile->obfd, sect, contents,
+ (file_ptr)0, (bfd_size_type)debuglink_size);
+
+ /* Crc value is stored after the filename, aligned up to 4 bytes. */
+ crc_offset = strlen (contents) + 1;
+ crc_offset = (crc_offset + 3) & ~3;
+
+ crc32 = bfd_get_32 (objfile->obfd, (bfd_byte *) (contents + crc_offset));
+
+ *crc32_out = crc32;
+ return contents;
+}
+
+static int
+separate_debug_file_exists (const char *name, unsigned long crc)
+{
+ unsigned long file_crc = 0;
+ int fd;
+ char buffer[8*1024];
+ int count;
+
+ fd = open (name, O_RDONLY | O_BINARY);
+ if (fd < 0)
+ return 0;
+
+ while ((count = read (fd, buffer, sizeof (buffer))) > 0)
+ file_crc = gnu_debuglink_crc32 (file_crc, buffer, count);
+
+ close (fd);
+
+ return crc == file_crc;
+}
+
+static char *debug_file_directory = NULL;
+
+#if ! defined (DEBUG_SUBDIRECTORY)
+#define DEBUG_SUBDIRECTORY ".debug"
+#endif
+
+static char *
+find_separate_debug_file (struct objfile *objfile)
+{
+ asection *sect;
+ char *basename;
+ char *dir;
+ char *debugfile;
+ char *name_copy;
+ bfd_size_type debuglink_size;
+ unsigned long crc32;
+ int i;
+
+ basename = get_debug_link_info (objfile, &crc32);
+
+ if (basename == NULL)
+ return NULL;
+
+ dir = xstrdup (objfile->name);
+
+ /* Strip off the final filename part, leaving the directory name,
+ followed by a slash. Objfile names should always be absolute and
+ tilde-expanded, so there should always be a slash in there
+ somewhere. */
+ for (i = strlen(dir) - 1; i >= 0; i--)
+ {
+ if (IS_DIR_SEPARATOR (dir[i]))
+ break;
+ }
+ gdb_assert (i >= 0 && IS_DIR_SEPARATOR (dir[i]));
+ dir[i+1] = '\0';
+
+ debugfile = alloca (strlen (debug_file_directory) + 1
+ + strlen (dir)
+ + strlen (DEBUG_SUBDIRECTORY)
+ + strlen ("/")
+ + strlen (basename)
+ + 1);
+
+ /* First try in the same directory as the original file. */
+ strcpy (debugfile, dir);
+ strcat (debugfile, basename);
+
+ if (separate_debug_file_exists (debugfile, crc32))
+ {
+ xfree (basename);
+ xfree (dir);
+ return xstrdup (debugfile);
+ }
+
+ /* Then try in the subdirectory named DEBUG_SUBDIRECTORY. */
+ strcpy (debugfile, dir);
+ strcat (debugfile, DEBUG_SUBDIRECTORY);
+ strcat (debugfile, "/");
+ strcat (debugfile, basename);
+
+ if (separate_debug_file_exists (debugfile, crc32))
+ {
+ xfree (basename);
+ xfree (dir);
+ return xstrdup (debugfile);
+ }
+
+ /* Then try in the global debugfile directory. */
+ strcpy (debugfile, debug_file_directory);
+ strcat (debugfile, "/");
+ strcat (debugfile, dir);
+ strcat (debugfile, basename);
+
+ if (separate_debug_file_exists (debugfile, crc32))
+ {
+ xfree (basename);
+ xfree (dir);
+ return xstrdup (debugfile);
+ }
+
+ xfree (basename);
+ xfree (dir);
+ return NULL;
+}
+
+
/* This is the symbol-file command. Read the file, analyze its
symbols, and add a struct symtab to a symtab list. The syntax of
the command is rather bizarre--(1) buildargv implements various
error ("\"%s\": can't open to read symbols: %s.", name,
bfd_errmsg (bfd_get_error ()));
}
- sym_bfd->cacheable = true;
+ sym_bfd->cacheable = 1;
if (!bfd_check_format (sym_bfd, bfd_object))
{
return (sym_bfd);
}
+/* Return the section index for the given section name. Return -1 if
+ the section was not found. */
+int
+get_section_index (struct objfile *objfile, char *section_name)
+{
+ asection *sect = bfd_get_section_by_name (objfile->obfd, section_name);
+ if (sect)
+ return sect->index;
+ else
+ return -1;
+}
+
/* Link a new symtab_fns into the global symtab_fns list. Called on gdb
startup by the _initialize routine in each object file format reader,
to register information about each format the the reader is prepared
enum bfd_flavour our_flavour = bfd_get_flavour (objfile->obfd);
char *our_target = bfd_get_target (objfile->obfd);
+ if (our_flavour == bfd_target_srec_flavour
+ || our_flavour == bfd_target_ihex_flavour
+ || our_flavour == bfd_target_tekhex_flavour)
+ return; /* No symbols. */
+
/* Special kludge for apollo. See dstread.c. */
if (STREQN (our_target, "apollo", 6))
our_flavour = (enum bfd_flavour) -2;
static int download_write_size = 512;
static int validate_download = 0;
+/* Callback service function for generic_load (bfd_map_over_sections). */
+
+static void
+add_section_size_callback (bfd *abfd, asection *asec, void *data)
+{
+ bfd_size_type *sum = data;
+
+ *sum += bfd_get_section_size_before_reloc (asec);
+}
+
+/* Opaque data for load_section_callback. */
+struct load_section_data {
+ unsigned long load_offset;
+ unsigned long write_count;
+ unsigned long data_count;
+ bfd_size_type total_size;
+};
+
+/* Callback service function for generic_load (bfd_map_over_sections). */
+
+static void
+load_section_callback (bfd *abfd, asection *asec, void *data)
+{
+ struct load_section_data *args = data;
+
+ if (bfd_get_section_flags (abfd, asec) & SEC_LOAD)
+ {
+ bfd_size_type size = bfd_get_section_size_before_reloc (asec);
+ if (size > 0)
+ {
+ char *buffer;
+ struct cleanup *old_chain;
+ CORE_ADDR lma = bfd_section_lma (abfd, asec) + args->load_offset;
+ bfd_size_type block_size;
+ int err;
+ const char *sect_name = bfd_get_section_name (abfd, asec);
+ bfd_size_type sent;
+
+ if (download_write_size > 0 && size > download_write_size)
+ block_size = download_write_size;
+ else
+ block_size = size;
+
+ buffer = xmalloc (size);
+ old_chain = make_cleanup (xfree, buffer);
+
+ /* Is this really necessary? I guess it gives the user something
+ to look at during a long download. */
+ ui_out_message (uiout, 0, "Loading section %s, size 0x%s lma 0x%s\n",
+ sect_name, paddr_nz (size), paddr_nz (lma));
+
+ bfd_get_section_contents (abfd, asec, buffer, 0, size);
+
+ sent = 0;
+ do
+ {
+ int len;
+ bfd_size_type this_transfer = size - sent;
+
+ if (this_transfer >= block_size)
+ this_transfer = block_size;
+ len = target_write_memory_partial (lma, buffer,
+ this_transfer, &err);
+ if (err)
+ break;
+ if (validate_download)
+ {
+ /* Broken memories and broken monitors manifest
+ themselves here when bring new computers to
+ life. This doubles already slow downloads. */
+ /* NOTE: cagney/1999-10-18: A more efficient
+ implementation might add a verify_memory()
+ method to the target vector and then use
+ that. remote.c could implement that method
+ using the ``qCRC'' packet. */
+ char *check = xmalloc (len);
+ struct cleanup *verify_cleanups =
+ make_cleanup (xfree, check);
+
+ if (target_read_memory (lma, check, len) != 0)
+ error ("Download verify read failed at 0x%s",
+ paddr (lma));
+ if (memcmp (buffer, check, len) != 0)
+ error ("Download verify compare failed at 0x%s",
+ paddr (lma));
+ do_cleanups (verify_cleanups);
+ }
+ args->data_count += len;
+ lma += len;
+ buffer += len;
+ args->write_count += 1;
+ sent += len;
+ if (quit_flag
+ || (ui_load_progress_hook != NULL
+ && ui_load_progress_hook (sect_name, sent)))
+ error ("Canceled the download");
+
+ if (show_load_progress != NULL)
+ show_load_progress (sect_name, sent, size,
+ args->data_count, args->total_size);
+ }
+ while (sent < size);
+
+ if (err != 0)
+ error ("Memory access error while loading section %s.", sect_name);
+
+ do_cleanups (old_chain);
+ }
+ }
+}
+
void
generic_load (char *args, int from_tty)
{
asection *s;
bfd *loadfile_bfd;
time_t start_time, end_time; /* Start and end times of download */
- unsigned long data_count = 0; /* Number of bytes transferred to memory */
- unsigned long write_count = 0; /* Number of writes needed. */
- unsigned long load_offset; /* offset to add to vma for each section */
char *filename;
struct cleanup *old_cleanups;
char *offptr;
- CORE_ADDR total_size = 0;
- CORE_ADDR total_sent = 0;
+ struct load_section_data cbdata;
+ CORE_ADDR entry;
+
+ cbdata.load_offset = 0; /* Offset to add to vma for each section. */
+ cbdata.write_count = 0; /* Number of writes needed. */
+ cbdata.data_count = 0; /* Number of bytes written to target memory. */
+ cbdata.total_size = 0; /* Total size of all bfd sectors. */
/* Parse the input argument - the user can specify a load offset as
a second argument. */
if (offptr != NULL)
{
char *endptr;
- load_offset = strtoul (offptr, &endptr, 0);
+
+ cbdata.load_offset = strtoul (offptr, &endptr, 0);
if (offptr == endptr)
error ("Invalid download offset:%s\n", offptr);
*offptr = '\0';
}
else
- load_offset = 0;
+ cbdata.load_offset = 0;
/* Open the file for loading. */
loadfile_bfd = bfd_openr (filename, gnutarget);
bfd_errmsg (bfd_get_error ()));
}
- for (s = loadfile_bfd->sections; s; s = s->next)
- if (s->flags & SEC_LOAD)
- total_size += bfd_get_section_size_before_reloc (s);
+ bfd_map_over_sections (loadfile_bfd, add_section_size_callback,
+ (void *) &cbdata.total_size);
start_time = time (NULL);
- for (s = loadfile_bfd->sections; s; s = s->next)
- {
- if (s->flags & SEC_LOAD)
- {
- CORE_ADDR size = bfd_get_section_size_before_reloc (s);
- if (size > 0)
- {
- char *buffer;
- struct cleanup *old_chain;
- CORE_ADDR lma = s->lma + load_offset;
- CORE_ADDR block_size;
- int err;
- const char *sect_name = bfd_get_section_name (loadfile_bfd, s);
- CORE_ADDR sent;
-
- if (download_write_size > 0 && size > download_write_size)
- block_size = download_write_size;
- else
- block_size = size;
-
- buffer = xmalloc (size);
- old_chain = make_cleanup (xfree, buffer);
-
- /* Is this really necessary? I guess it gives the user something
- to look at during a long download. */
-#ifdef UI_OUT
- ui_out_message (uiout, 0, "Loading section %s, size 0x%s lma 0x%s\n",
- sect_name, paddr_nz (size), paddr_nz (lma));
-#else
- fprintf_unfiltered (gdb_stdout,
- "Loading section %s, size 0x%s lma 0x%s\n",
- sect_name, paddr_nz (size), paddr_nz (lma));
-#endif
-
- bfd_get_section_contents (loadfile_bfd, s, buffer, 0, size);
-
- sent = 0;
- do
- {
- CORE_ADDR len;
- CORE_ADDR this_transfer = size - sent;
- if (this_transfer >= block_size)
- this_transfer = block_size;
- len = target_write_memory_partial (lma, buffer,
- this_transfer, &err);
- if (err)
- break;
- if (validate_download)
- {
- /* Broken memories and broken monitors manifest
- themselves here when bring new computers to
- life. This doubles already slow downloads. */
- /* NOTE: cagney/1999-10-18: A more efficient
- implementation might add a verify_memory()
- method to the target vector and then use
- that. remote.c could implement that method
- using the ``qCRC'' packet. */
- char *check = xmalloc (len);
- struct cleanup *verify_cleanups = make_cleanup (xfree, check);
- if (target_read_memory (lma, check, len) != 0)
- error ("Download verify read failed at 0x%s",
- paddr (lma));
- if (memcmp (buffer, check, len) != 0)
- error ("Download verify compare failed at 0x%s",
- paddr (lma));
- do_cleanups (verify_cleanups);
- }
- data_count += len;
- lma += len;
- buffer += len;
- write_count += 1;
- sent += len;
- total_sent += len;
- if (quit_flag
- || (ui_load_progress_hook != NULL
- && ui_load_progress_hook (sect_name, sent)))
- error ("Canceled the download");
-
- if (show_load_progress != NULL)
- show_load_progress (sect_name, sent, size, total_sent, total_size);
- }
- while (sent < size);
-
- if (err != 0)
- error ("Memory access error while loading section %s.", sect_name);
-
- do_cleanups (old_chain);
- }
- }
- }
+ bfd_map_over_sections (loadfile_bfd, load_section_callback, &cbdata);
end_time = time (NULL);
- {
- CORE_ADDR entry;
- entry = bfd_get_start_address (loadfile_bfd);
-#ifdef UI_OUT
- ui_out_text (uiout, "Start address ");
- ui_out_field_fmt (uiout, "address", "0x%s" , paddr_nz (entry));
- ui_out_text (uiout, ", load size ");
- ui_out_field_fmt (uiout, "load-size", "%ld" , data_count);
- ui_out_text (uiout, "\n");
-#else
- fprintf_unfiltered (gdb_stdout,
- "Start address 0x%s , load size %ld\n",
- paddr_nz (entry), data_count);
-#endif
- /* We were doing this in remote-mips.c, I suspect it is right
- for other targets too. */
- write_pc (entry);
- }
-
- /* FIXME: are we supposed to call symbol_file_add or not? According to
- a comment from remote-mips.c (where a call to symbol_file_add was
- commented out), making the call confuses GDB if more than one file is
- loaded in. remote-nindy.c had no call to symbol_file_add, but remote-vx.c
- does. */
-
- print_transfer_performance (gdb_stdout, data_count, write_count,
- end_time - start_time);
+ entry = bfd_get_start_address (loadfile_bfd);
+ ui_out_text (uiout, "Start address ");
+ ui_out_field_fmt (uiout, "address", "0x%s", paddr_nz (entry));
+ ui_out_text (uiout, ", load size ");
+ ui_out_field_fmt (uiout, "load-size", "%lu", cbdata.data_count);
+ ui_out_text (uiout, "\n");
+ /* We were doing this in remote-mips.c, I suspect it is right
+ for other targets too. */
+ write_pc (entry);
+
+ /* FIXME: are we supposed to call symbol_file_add or not? According
+ to a comment from remote-mips.c (where a call to symbol_file_add
+ was commented out), making the call confuses GDB if more than one
+ file is loaded in. Some targets do (e.g., remote-vx.c) but
+ others don't (or didn't - perhaphs they have all been deleted). */
+
+ print_transfer_performance (gdb_stdout, cbdata.data_count,
+ cbdata.write_count, end_time - start_time);
do_cleanups (old_cleanups);
}
report_transfer_performance (unsigned long data_count, time_t start_time,
time_t end_time)
{
- print_transfer_performance (gdb_stdout, data_count, end_time - start_time, 0);
+ print_transfer_performance (gdb_stdout, data_count,
+ end_time - start_time, 0);
}
void
unsigned long write_count,
unsigned long time_count)
{
-#ifdef UI_OUT
ui_out_text (uiout, "Transfer rate: ");
if (time_count > 0)
{
- ui_out_field_fmt (uiout, "transfer-rate", "%ld",
+ ui_out_field_fmt (uiout, "transfer-rate", "%lu",
(data_count * 8) / time_count);
ui_out_text (uiout, " bits/sec");
}
else
{
- ui_out_field_fmt (uiout, "transferred-bits", "%ld", (data_count * 8));
+ ui_out_field_fmt (uiout, "transferred-bits", "%lu", (data_count * 8));
ui_out_text (uiout, " bits in <1 sec");
}
if (write_count > 0)
{
ui_out_text (uiout, ", ");
- ui_out_field_fmt (uiout, "write-rate", "%ld", data_count / write_count);
+ ui_out_field_fmt (uiout, "write-rate", "%lu", data_count / write_count);
ui_out_text (uiout, " bytes/write");
}
ui_out_text (uiout, ".\n");
-#else
- fprintf_unfiltered (stream, "Transfer rate: ");
- if (time_count > 0)
- fprintf_unfiltered (stream, "%ld bits/sec", (data_count * 8) / time_count);
- else
- fprintf_unfiltered (stream, "%ld bits in <1 sec", (data_count * 8));
- if (write_count > 0)
- fprintf_unfiltered (stream, ", %ld bytes/write", data_count / write_count);
- fprintf_unfiltered (stream, ".\n");
-#endif
}
/* This function allows the addition of incrementally linked object files.
/* FIXME: Do we have to free a whole linked list, or is this
enough? */
if (objfile->global_psymbols.list)
- mfree (objfile->md, objfile->global_psymbols.list);
+ xmfree (objfile->md, objfile->global_psymbols.list);
memset (&objfile->global_psymbols, 0,
sizeof (objfile->global_psymbols));
if (objfile->static_psymbols.list)
- mfree (objfile->md, objfile->static_psymbols.list);
+ xmfree (objfile->md, objfile->static_psymbols.list);
memset (&objfile->static_psymbols, 0,
sizeof (objfile->static_psymbols));
/* Free the obstacks for non-reusable objfiles */
- free_bcache (&objfile->psymbol_cache);
+ bcache_xfree (objfile->psymbol_cache);
+ objfile->psymbol_cache = bcache_xmalloc ();
+ bcache_xfree (objfile->macro_cache);
+ objfile->macro_cache = bcache_xmalloc ();
+ if (objfile->demangled_names_hash != NULL)
+ {
+ htab_delete (objfile->demangled_names_hash);
+ objfile->demangled_names_hash = NULL;
+ }
obstack_free (&objfile->psymbol_obstack, 0);
obstack_free (&objfile->symbol_obstack, 0);
obstack_free (&objfile->type_obstack, 0);
objfile->md = NULL;
/* obstack_specify_allocation also initializes the obstack so
it is empty. */
- obstack_specify_allocation (&objfile->psymbol_cache.cache, 0, 0,
- xmalloc, xfree);
+ objfile->psymbol_cache = bcache_xmalloc ();
+ objfile->macro_cache = bcache_xmalloc ();
obstack_specify_allocation (&objfile->psymbol_obstack, 0, 0,
xmalloc, xfree);
obstack_specify_allocation (&objfile->symbol_obstack, 0, 0,
error ("Can't find the file sections in `%s': %s",
objfile->name, bfd_errmsg (bfd_get_error ()));
}
+ terminate_minimal_symbol_table (objfile);
/* We use the same section offsets as from last time. I'm not
sure whether that is always correct for shared libraries. */
}
(*objfile->sf->sym_init) (objfile);
- clear_complaints (1, 1);
+ clear_complaints (&symfile_complaints, 1, 1);
/* The "mainline" parameter is a hideous hack; I think leaving it
zero is OK since dbxread.c also does what it needs to do if
objfile->global_psymbols.size is 0. */
objfile->flags |= OBJF_SYMS;
/* We're done reading the symbol file; finish off complaints. */
- clear_complaints (0, 1);
+ clear_complaints (&symfile_complaints, 0, 1);
/* Getting new symbols may change our opinion about what is
frameless. */
needs to keep track of (such as _sigtramp, or whatever). */
TARGET_SYMFILE_POSTREAD (objfile);
+
+ reread_separate_symbols (objfile);
}
}
}
if (reread_one)
clear_symtab_users ();
}
+
+
+/* Handle separate debug info for OBJFILE, which has just been
+ re-read:
+ - If we had separate debug info before, but now we don't, get rid
+ of the separated objfile.
+ - If we didn't have separated debug info before, but now we do,
+ read in the new separated debug info file.
+ - If the debug link points to a different file, toss the old one
+ and read the new one.
+ This function does *not* handle the case where objfile is still
+ using the same separate debug info file, but that file's timestamp
+ has changed. That case should be handled by the loop in
+ reread_symbols already. */
+static void
+reread_separate_symbols (struct objfile *objfile)
+{
+ char *debug_file;
+ unsigned long crc32;
+
+ /* Does the updated objfile's debug info live in a
+ separate file? */
+ debug_file = find_separate_debug_file (objfile);
+
+ if (objfile->separate_debug_objfile)
+ {
+ /* There are two cases where we need to get rid of
+ the old separated debug info objfile:
+ - if the new primary objfile doesn't have
+ separated debug info, or
+ - if the new primary objfile has separate debug
+ info, but it's under a different filename.
+
+ If the old and new objfiles both have separate
+ debug info, under the same filename, then we're
+ okay --- if the separated file's contents have
+ changed, we will have caught that when we
+ visited it in this function's outermost
+ loop. */
+ if (! debug_file
+ || strcmp (debug_file, objfile->separate_debug_objfile->name) != 0)
+ free_objfile (objfile->separate_debug_objfile);
+ }
+
+ /* If the new objfile has separate debug info, and we
+ haven't loaded it already, do so now. */
+ if (debug_file
+ && ! objfile->separate_debug_objfile)
+ {
+ /* Use the same section offset table as objfile itself.
+ Preserve the flags from objfile that make sense. */
+ objfile->separate_debug_objfile
+ = (symbol_file_add_with_addrs_or_offsets
+ (debug_file,
+ info_verbose, /* from_tty: Don't override the default. */
+ 0, /* No addr table. */
+ objfile->section_offsets, objfile->num_sections,
+ 0, /* Not mainline. See comments about this above. */
+ objfile->flags & (OBJF_MAPPED | OBJF_REORDERED
+ | OBJF_SHARED | OBJF_READNOW
+ | OBJF_USERLOADED)));
+ objfile->separate_debug_objfile->separate_debug_objfile_backlink
+ = objfile;
+ }
+}
+
+
\f
if (fl_table_next >= fl_table_size)
{
fl_table_size += 10;
- filename_language_table = xrealloc (filename_language_table,
- fl_table_size);
+ filename_language_table =
+ xrealloc (filename_language_table,
+ fl_table_size * sizeof (*filename_language_table));
}
filename_language_table[fl_table_next].ext = xstrdup (ext);
add_filename_language (".c++", language_cplus);
add_filename_language (".java", language_java);
add_filename_language (".class", language_java);
- add_filename_language (".ch", language_chill);
- add_filename_language (".c186", language_chill);
- add_filename_language (".c286", language_chill);
+ add_filename_language (".m", language_objc);
add_filename_language (".f", language_fortran);
add_filename_language (".F", language_fortran);
add_filename_language (".s", language_asm);
clear_internalvars ();
breakpoint_re_set ();
set_default_breakpoint (0, 0, 0, 0);
- current_source_symtab = 0;
- current_source_line = 0;
+ clear_current_source_symtab_and_line ();
clear_pc_function_cache ();
if (target_new_objfile_hook)
target_new_objfile_hook (NULL);
|| BLOCK_NSYMS (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK))
|| BLOCK_NSYMS (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)))
{
- complain (&oldsyms_complaint, name);
-
+ complaint (&symfile_complaints, "Replacing old symbols for `%s'",
+ name);
clear_symtab_users_queued++;
make_cleanup (clear_symtab_users_once, 0);
blewit = 1;
}
else
{
- complain (&empty_symtab_complaint, name);
+ complaint (&symfile_complaints, "Empty symbol table found for `%s'",
+ name);
}
free_symtab (s);
/* Create local copy of the partial symbol */
memcpy (buf, name, namelength);
buf[namelength] = '\0';
- SYMBOL_NAME (&psymbol) = bcache (buf, namelength + 1, &objfile->psymbol_cache);
/* val and coreaddr are mutually exclusive, one of them *will* be zero */
if (val != 0)
{
SYMBOL_LANGUAGE (&psymbol) = language;
PSYMBOL_NAMESPACE (&psymbol) = namespace;
PSYMBOL_CLASS (&psymbol) = class;
- SYMBOL_INIT_LANGUAGE_SPECIFIC (&psymbol, language);
+
+ SYMBOL_SET_NAMES (&psymbol, buf, namelength, objfile);
/* Stash the partial symbol away in the cache */
- psym = bcache (&psymbol, sizeof (struct partial_symbol), &objfile->psymbol_cache);
+ psym = bcache (&psymbol, sizeof (struct partial_symbol), objfile->psymbol_cache);
/* Save pointer to partial symbol in psymtab, growing symtab if needed. */
if (list->next >= list->list + list->size)
memcpy (buf, name, namelength);
buf[namelength] = '\0';
- SYMBOL_NAME (&psymbol) = bcache (buf, namelength + 1, &objfile->psymbol_cache);
+ DEPRECATED_SYMBOL_NAME (&psymbol) = bcache (buf, namelength + 1, objfile->psymbol_cache);
buf = alloca (dem_namelength + 1);
memcpy (buf, dem_name, dem_namelength);
case language_c:
case language_cplus:
SYMBOL_CPLUS_DEMANGLED_NAME (&psymbol) =
- bcache (buf, dem_namelength + 1, &objfile->psymbol_cache);
+ bcache (buf, dem_namelength + 1, objfile->psymbol_cache);
break;
- case language_chill:
- SYMBOL_CHILL_DEMANGLED_NAME (&psymbol) =
- bcache (buf, dem_namelength + 1, &objfile->psymbol_cache);
-
/* FIXME What should be done for the default case? Ignoring for now. */
}
SYMBOL_INIT_LANGUAGE_SPECIFIC (&psymbol, language);
/* Stash the partial symbol away in the cache */
- psym = bcache (&psymbol, sizeof (struct partial_symbol), &objfile->psymbol_cache);
+ psym = bcache (&psymbol, sizeof (struct partial_symbol), objfile->psymbol_cache);
/* Save pointer to partial symbol in psymtab, growing symtab if needed. */
if (list->next >= list->list + list->size)
if (objfile->global_psymbols.list)
{
- mfree (objfile->md, (PTR) objfile->global_psymbols.list);
+ xmfree (objfile->md, objfile->global_psymbols.list);
}
if (objfile->static_psymbols.list)
{
- mfree (objfile->md, (PTR) objfile->static_psymbols.list);
+ xmfree (objfile->md, objfile->static_psymbols.list);
}
/* Current best guess is that approximately a twentieth
/* Overlay debugging state: */
-int overlay_debugging = 0; /* 0 == off, 1 == manual, -1 == auto */
+enum overlay_debugging_state overlay_debugging = ovly_off;
int overlay_cache_invalid = 0; /* True if need to refresh mapped state */
/* Target vector for refreshing overlay mapped state */
int
section_is_overlay (asection *section)
{
+ /* FIXME: need bfd *, so we can use bfd_section_lma methods. */
+
if (overlay_debugging)
if (section && section->lma != 0 &&
section->vma != section->lma)
switch (overlay_debugging)
{
default:
- case 0:
+ case ovly_off:
return 0; /* overlay debugging off */
- case -1: /* overlay debugging automatic */
+ case ovly_auto: /* overlay debugging automatic */
/* Unles there is a target_overlay_update function,
there's really nothing useful to do here (can't really go auto) */
if (target_overlay_update)
(*target_overlay_update) (osect);
}
/* fall thru to manual case */
- case 1: /* overlay debugging manual */
+ case ovly_on: /* overlay debugging manual */
return osect->ovly_mapped == 1;
}
}
CORE_ADDR
pc_in_unmapped_range (CORE_ADDR pc, asection *section)
{
+ /* FIXME: need bfd *, so we can use bfd_section_lma methods. */
+
int size;
if (overlay_debugging)
CORE_ADDR
pc_in_mapped_range (CORE_ADDR pc, asection *section)
{
+ /* FIXME: need bfd *, so we can use bfd_section_vma methods. */
+
int size;
if (overlay_debugging)
int
sections_overlap (asection *a, asection *b)
{
+ /* FIXME: need bfd *, so we can use bfd_section_vma methods. */
+
CORE_ADDR a_start = a->vma;
CORE_ADDR a_end = a->vma + bfd_get_section_size_before_reloc (a);
CORE_ADDR b_start = b->vma;
CORE_ADDR
overlay_unmapped_address (CORE_ADDR pc, asection *section)
{
+ /* FIXME: need bfd *, so we can use bfd_section_lma methods. */
+
if (overlay_debugging)
if (section && section_is_overlay (section) &&
pc_in_mapped_range (pc, section))
CORE_ADDR
overlay_mapped_address (CORE_ADDR pc, asection *section)
{
+ /* FIXME: need bfd *, so we can use bfd_section_vma methods. */
+
if (overlay_debugging)
if (section && section_is_overlay (section) &&
pc_in_unmapped_range (pc, section))
static void
overlay_auto_command (char *args, int from_tty)
{
- overlay_debugging = -1;
+ overlay_debugging = ovly_auto;
+ enable_overlay_breakpoints ();
if (info_verbose)
printf_filtered ("Automatic overlay debugging enabled.");
}
static void
overlay_manual_command (char *args, int from_tty)
{
- overlay_debugging = 1;
+ overlay_debugging = ovly_on;
+ disable_overlay_breakpoints ();
if (info_verbose)
printf_filtered ("Overlay debugging enabled.");
}
static void
overlay_off_command (char *args, int from_tty)
{
- overlay_debugging = 0;
+ overlay_debugging = ovly_off;
+ disable_overlay_breakpoints ();
if (info_verbose)
printf_filtered ("Overlay debugging disabled.");
}
static void
read_target_long_array (CORE_ADDR memaddr, unsigned int *myaddr, int len)
{
+ /* FIXME (alloca): Not safe if array is very large. */
char *buf = alloca (len * TARGET_LONG_BYTES);
int i;
struct minimal_symbol *novlys_msym, *ovly_table_msym;
simple_free_overlay_table ();
- novlys_msym = lookup_minimal_symbol ("_novlys", 0, 0);
+ novlys_msym = lookup_minimal_symbol ("_novlys", NULL, NULL);
if (! novlys_msym)
{
error ("Error reading inferior's overlay table: "
return 0;
}
- ovly_table_msym = lookup_minimal_symbol ("_ovly_table", 0, 0);
+ ovly_table_msym = lookup_minimal_symbol ("_ovly_table", NULL, NULL);
if (! ovly_table_msym)
{
error ("Error reading inferior's overlay table: couldn't find "
struct minimal_symbol *msym;
simple_free_overlay_region_table ();
- msym = lookup_minimal_symbol ("_novly_regions", 0, 0);
+ msym = lookup_minimal_symbol ("_novly_regions", NULL, NULL);
if (msym != NULL)
cache_novly_regions = read_memory_integer (SYMBOL_VALUE_ADDRESS (msym), 4);
else
cache_ovly_region_table = (void *) xmalloc (cache_novly_regions * 12);
if (cache_ovly_region_table != NULL)
{
- msym = lookup_minimal_symbol ("_ovly_region_table", 0, 0);
+ msym = lookup_minimal_symbol ("_ovly_region_table", NULL, NULL);
if (msym != NULL)
{
cache_ovly_region_table_base = SYMBOL_VALUE_ADDRESS (msym);
simple_overlay_update_1 (struct obj_section *osect)
{
int i, size;
+ bfd *obfd = osect->objfile->obfd;
+ asection *bsect = osect->the_bfd_section;
size = bfd_get_section_size_before_reloc (osect->the_bfd_section);
for (i = 0; i < cache_novlys; i++)
- if (cache_ovly_table[i][VMA] == osect->the_bfd_section->vma &&
- cache_ovly_table[i][LMA] == osect->the_bfd_section->lma /* &&
- cache_ovly_table[i][SIZE] == size */ )
+ if (cache_ovly_table[i][VMA] == bfd_section_vma (obfd, bsect)
+ && cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect)
+ /* && cache_ovly_table[i][SIZE] == size */ )
{
read_target_long_array (cache_ovly_table_base + i * TARGET_LONG_BYTES,
(int *) cache_ovly_table[i], 4);
- if (cache_ovly_table[i][VMA] == osect->the_bfd_section->vma &&
- cache_ovly_table[i][LMA] == osect->the_bfd_section->lma /* &&
- cache_ovly_table[i][SIZE] == size */ )
+ if (cache_ovly_table[i][VMA] == bfd_section_vma (obfd, bsect)
+ && cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect)
+ /* && cache_ovly_table[i][SIZE] == size */ )
{
osect->ovly_mapped = cache_ovly_table[i][MAPPED];
return 1;
}
- else /* Warning! Warning! Target's ovly table has changed! */
+ else /* Warning! Warning! Target's ovly table has changed! */
return 0;
}
return 0;
if (cache_ovly_table != NULL)
/* Does its cached location match what's currently in the symtab? */
if (cache_ovly_table_base ==
- SYMBOL_VALUE_ADDRESS (lookup_minimal_symbol ("_ovly_table", 0, 0)))
+ SYMBOL_VALUE_ADDRESS (lookup_minimal_symbol ("_ovly_table", NULL, NULL)))
/* Then go ahead and try to look up this single section in the cache */
if (simple_overlay_update_1 (osect))
/* Found it! We're done. */
if (section_is_overlay (osect->the_bfd_section))
{
int i, size;
+ bfd *obfd = osect->objfile->obfd;
+ asection *bsect = osect->the_bfd_section;
size = bfd_get_section_size_before_reloc (osect->the_bfd_section);
for (i = 0; i < cache_novlys; i++)
- if (cache_ovly_table[i][VMA] == osect->the_bfd_section->vma &&
- cache_ovly_table[i][LMA] == osect->the_bfd_section->lma /* &&
- cache_ovly_table[i][SIZE] == size */ )
- { /* obj_section matches i'th entry in ovly_table */
+ if (cache_ovly_table[i][VMA] == bfd_section_vma (obfd, bsect)
+ && cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect)
+ /* && cache_ovly_table[i][SIZE] == size */ )
+ { /* obj_section matches i'th entry in ovly_table */
osect->ovly_mapped = cache_ovly_table[i][MAPPED];
break; /* finished with inner for loop: break out */
}
}
}
+/* Set the output sections and output offsets for section SECTP in
+ ABFD. The relocation code in BFD will read these offsets, so we
+ need to be sure they're initialized. We map each section to itself,
+ with no offset; this means that SECTP->vma will be honored. */
+
+static void
+symfile_dummy_outputs (bfd *abfd, asection *sectp, void *dummy)
+{
+ sectp->output_section = sectp;
+ sectp->output_offset = 0;
+}
+
+/* Relocate the contents of a debug section SECTP in ABFD. The
+ contents are stored in BUF if it is non-NULL, or returned in a
+ malloc'd buffer otherwise.
+
+ For some platforms and debug info formats, shared libraries contain
+ relocations against the debug sections (particularly for DWARF-2;
+ one affected platform is PowerPC GNU/Linux, although it depends on
+ the version of the linker in use). Also, ELF object files naturally
+ have unresolved relocations for their debug sections. We need to apply
+ the relocations in order to get the locations of symbols correct. */
+
+bfd_byte *
+symfile_relocate_debug_section (bfd *abfd, asection *sectp, bfd_byte *buf)
+{
+ /* We're only interested in debugging sections with relocation
+ information. */
+ if ((sectp->flags & SEC_RELOC) == 0)
+ return NULL;
+ if ((sectp->flags & SEC_DEBUGGING) == 0)
+ return NULL;
+
+ /* We will handle section offsets properly elsewhere, so relocate as if
+ all sections begin at 0. */
+ bfd_map_over_sections (abfd, symfile_dummy_outputs, NULL);
+
+ return bfd_simple_get_relocated_section_contents (abfd, sectp, buf, NULL);
+}
void
_initialize_symfile (void)
"Load symbol table from executable file FILE.\n\
The `file' command can also load symbol tables, as well as setting the file\n\
to execute.", &cmdlist);
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
c = add_cmd ("add-symbol-file", class_files, add_symbol_file_command,
"Usage: add-symbol-file FILE ADDR [-s <SECT> <SECT_ADDR> -s <SECT> <SECT_ADDR> ...]\n\
ADDR is the starting address of the file's text.\n\
The optional arguments are section-name section-address pairs and\n\
should be specified if the data and bss segments are not contiguous\n\
-with the text. SECT is a section name to be loaded at SECT_ADDR.",
+with the text. SECT is a section name to be loaded at SECT_ADDR.",
&cmdlist);
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
c = add_cmd ("add-shared-symbol-files", class_files,
add_shared_symbol_files_command,
c = add_cmd ("load", class_files, load_command,
"Dynamically load FILE into the running program, and record its symbols\n\
for access from GDB.", &cmdlist);
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
add_show_from_set
(add_set_cmd ("symbol-reloading", class_support, var_boolean,
"Set mapping between filename extension and source language.\n\
Usage: set extension-language .foo bar",
&setlist);
- c->function.cfunc = set_ext_lang_command;
+ set_cmd_cfunc (c, set_ext_lang_command);
add_info ("extensions", info_ext_lang_command,
"All filename extensions associated with a source language.");
"cache.\n",
&setlist),
&showlist);
+
+ debug_file_directory = xstrdup (DEBUGDIR);
+ c = (add_set_cmd
+ ("debug-file-directory", class_support, var_string,
+ (char *) &debug_file_directory,
+ "Set the directory where separate debug symbols are searched for.\n"
+ "Separate debug symbols are first searched for in the same\n"
+ "directory as the binary, then in the `" DEBUG_SUBDIRECTORY
+ "' subdirectory,\n"
+ "and lastly at the path of the directory of the binary with\n"
+ "the global debug-file directory prepended\n",
+ &setlist));
+ add_show_from_set (c, &showlist);
+ set_cmd_completer (c, filename_completer);
}
projects / deliverable / binutils-gdb.git / blobdiff