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* symfile.c (reread_symbols): When re-reading symbols, do all the
right operations ourself, rather than calling symbol_file_command. If we re-read something, call clear_symtab_users not just breakpoint_re_set. * objfiles.h, objfiles.c (build_objfile_section_table): No longer static. * symfile.c (clear_symtab_users): Call clear_pc_function_cache. * coffread.c, dbxread.c, elfread.c, mipsread.c, nlmread.c, paread.c (*_symfile_offsets): Set objfile->num_sections. * remote.c (remote_wait), symfile.c (syms_from_objfile): Don't muck with objfile->num_sections now that all the symbol readers set it. * elfread.c: Clean up obsolete comment about handling only DWARF. * paread.c: Remove comment about how we should use an "ordinary" file format with an hppa suffix. There is nothing ordinary about SOM.
This commit is contained in:
Jim Kingdon
parent
df0393e345
commit
4d57c5995e
@ -1,3 +1,25 @@
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Sat Oct 30 08:32:53 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
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* symfile.c (reread_symbols): When re-reading symbols, do all the
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right operations ourself, rather than calling symbol_file_command.
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If we re-read something, call clear_symtab_users not just
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breakpoint_re_set.
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* objfiles.h, objfiles.c (build_objfile_section_table): No longer
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static.
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* symfile.c (clear_symtab_users): Call clear_pc_function_cache.
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* coffread.c, dbxread.c, elfread.c, mipsread.c, nlmread.c, paread.c
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(*_symfile_offsets): Set objfile->num_sections.
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* remote.c (remote_wait), symfile.c (syms_from_objfile):
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Don't muck with objfile->num_sections now that all the symbol
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readers set it.
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* elfread.c: Clean up obsolete comment about handling only DWARF.
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* paread.c: Remove comment about how we should use an "ordinary"
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file format with an hppa suffix. There is nothing ordinary about SOM.
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* config/i386/{i386m3.mh,i386mk.mh}, config/mips/mipsm3.mh,
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config/ns32k/ns32km3.mh: Change MMALLOC_LIB to MMALLOC.
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* TODO: Update Mach stuff.
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Fri Oct 29 16:30:36 1993 Stan Shebs (shebs@rtl.cygnus.com)
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LynxOS support:
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@ -28,6 +28,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "objfiles.h"
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#include "buildsym.h"
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#include "gdb-stabs.h"
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#include "stabsread.h"
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#include "complaints.h"
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#include <obstack.h>
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@ -2044,11 +2045,12 @@ coff_symfile_offsets (objfile, addr)
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{
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struct section_offsets *section_offsets;
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int i;
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objfile->num_sections = SECT_OFF_MAX;
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section_offsets = (struct section_offsets *)
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obstack_alloc (&objfile -> psymbol_obstack,
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sizeof (struct section_offsets) +
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sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
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sizeof (struct section_offsets)
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+ sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
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for (i = 0; i < SECT_OFF_MAX; i++)
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ANOFFSET (section_offsets, i) = addr;
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109
gdb/dbxread.c
109
gdb/dbxread.c
@ -212,9 +212,6 @@ free_header_files PARAMS ((void));
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static void
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init_header_files PARAMS ((void));
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static struct pending *
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copy_pending PARAMS ((struct pending *, int, struct pending *));
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static void
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read_ofile_symtab PARAMS ((struct partial_symtab *));
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@ -1547,7 +1544,7 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
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/* If this is nonzero, we've seen a non-gcc N_OPT symbol for this source
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file. Used to detect the SunPRO solaris compiler. */
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int n_opt_found;
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static int n_opt_found;
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/* The stab type used for the definition of the last function.
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N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers. */
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@ -1763,52 +1760,12 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
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break;
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case N_BCOMM:
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if (common_block)
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{
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/* Note: this does not detect nesting if the previous N_BCOMM
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was at the beginning of a scope (and thus common_block was
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NULL). Not necessarily worth worrying about unless we run
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into a compiler which actually has this bug. */
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static struct complaint msg = {
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"Invalid symbol data: common within common at symtab pos %d",
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0, 0};
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complain (&msg, symnum);
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}
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common_block = local_symbols;
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common_block_i = local_symbols ? local_symbols->nsyms : 0;
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common_block_start (name, objfile);
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break;
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case N_ECOMM:
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/* Symbols declared since the BCOMM are to have the common block
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start address added in when we know it. common_block and
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common_block_i point to the first symbol after the BCOMM in
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the local_symbols list; copy the list and hang it off the
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symbol for the common block name for later fixup. */
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/* If there is a N_ECOMM unmatched by a N_BCOMM, we treat all
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the local_symbols as part of the common block. It might be
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better to just ignore the N_ECOMM, but then we'd need to
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distinguish between a N_BCOMM at the start of a scope, or no
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N_BCOMM at all (currently they both have common_block NULL).
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Not necessarily worth worrying about unless we run into a
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compiler which actually has this bug. */
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{
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int i;
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struct symbol *sym =
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(struct symbol *) xmmalloc (objfile -> md, sizeof (struct symbol));
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memset (sym, 0, sizeof *sym);
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SYMBOL_NAME (sym) = savestring (name, strlen (name));
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SYMBOL_CLASS (sym) = LOC_BLOCK;
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SYMBOL_NAMESPACE (sym) = (enum namespace)((long)
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copy_pending (local_symbols, common_block_i, common_block));
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i = hashname (SYMBOL_NAME (sym));
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SYMBOL_VALUE_CHAIN (sym) = global_sym_chain[i];
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global_sym_chain[i] = sym;
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common_block = 0;
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break;
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}
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common_block_end (objfile);
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break;
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/* The following symbol types need to have the appropriate offset added
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to their value; then we process symbol definitions in the name. */
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@ -1816,28 +1773,23 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
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case N_STSYM: /* Static symbol in data seg */
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case N_LCSYM: /* Static symbol in BSS seg */
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case N_ROSYM: /* Static symbol in Read-only data seg */
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/* HORRID HACK DEPT. However, it's Sun's furgin' fault. FIXME.
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Solaris2's stabs-in-coff makes *most* symbols relative
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but leaves a few absolute. N_STSYM and friends sit on the fence.
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/* HORRID HACK DEPT. However, it's Sun's furgin' fault.
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Solaris2's stabs-in-elf makes *most* symbols relative
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but leaves a few absolute (at least for Solaris 2.1 and version
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2.0.1 of the SunPRO compiler). N_STSYM and friends sit on the fence.
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.stab "foo:S...",N_STSYM is absolute (ld relocates it)
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.stab "foo:V...",N_STSYM is relative (section base subtracted).
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This leaves us no choice but to search for the 'S' or 'V'...
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(or pass the whole section_offsets stuff down ONE MORE function
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call level, which we really don't want to do).
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The above is indeed true for Solaris 2.1. I'm not sure what
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happens in Solaris 2.3, in which ld stops relocating stabs. */
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call level, which we really don't want to do). */
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{
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char *p;
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p = strchr (name, ':');
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if (p != 0 && p[1] == 'S')
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{
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/* FIXME! We relocate it by the TEXT offset, in case the
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whole module moved in memory. But this is wrong, since
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the sections can side around independently. (I suspect that
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the text offset is always zero anyway--elfread.c doesn't
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process (and Sun cc doesn't produce) Ttext.text symbols). */
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valu += ANOFFSET (section_offsets, SECT_OFF_TEXT);
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/* The linker relocated it. There used to be a kludge here
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to add the text offset, but that will break if we ever
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start using the text offset (currently it is always zero). */
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goto define_a_symbol;
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}
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/* Since it's not the kludge case, re-dispatch to the right handler. */
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@ -2026,36 +1978,6 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
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previous_stab_code = type;
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}
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/* Copy a pending list, used to record the contents of a common
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block for later fixup. We copy the symbols starting with all
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symbols in BEG, and ending with the symbols which are in
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END at index ENDI. */
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static struct pending *
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copy_pending (beg, endi, end)
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struct pending *beg;
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int endi;
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struct pending *end;
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{
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struct pending *new = 0;
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struct pending *next;
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int j;
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/* Copy all the struct pendings before end. */
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for (next = beg; next != NULL && next != end; next = next->next)
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{
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for (j = 0; j < next->nsyms; j++)
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add_symbol_to_list (next->symbol[j], &new);
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}
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/* Copy however much of END we need. If END is NULL, it means copy
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all the local symbols (which we already did above). */
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if (end != NULL)
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for (j = endi; j < end->nsyms; j++)
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add_symbol_to_list (end->symbol[j], &new);
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return new;
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}
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/* FIXME: The only difference between this and elfstab_build_psymtabs is
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the call to install_minimal_symbols for elf. If the differences are
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really that small, the code should be shared. */
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@ -2253,11 +2175,12 @@ dbx_symfile_offsets (objfile, addr)
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{
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struct section_offsets *section_offsets;
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int i;
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objfile->num_sections = SECT_OFF_MAX;
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section_offsets = (struct section_offsets *)
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obstack_alloc (&objfile -> psymbol_obstack,
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sizeof (struct section_offsets) +
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sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
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sizeof (struct section_offsets)
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+ sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
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for (i = 0; i < SECT_OFF_MAX; i++)
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ANOFFSET (section_offsets, i) = addr;
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@ -615,15 +615,16 @@ elf_symfile_offsets (objfile, addr)
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{
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struct section_offsets *section_offsets;
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int i;
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objfile->num_sections = SECT_OFF_MAX;
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section_offsets = (struct section_offsets *)
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obstack_alloc (&objfile -> psymbol_obstack,
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sizeof (struct section_offsets) +
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sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
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sizeof (struct section_offsets)
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+ sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
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for (i = 0; i < SECT_OFF_MAX; i++)
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ANOFFSET (section_offsets, i) = addr;
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return section_offsets;
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}
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@ -694,21 +695,7 @@ elfstab_offset_sections (objfile, pst)
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complain (&stab_info_mismatch_complaint, filename);
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}
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/* Register that we are able to handle ELF object file formats and DWARF
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debugging formats.
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Unlike other object file formats, where the debugging information format
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is implied by the object file format, the ELF object file format and the
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DWARF debugging information format are two distinct, and potentially
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separate entities. I.E. it is perfectly possible to have ELF objects
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with debugging formats other than DWARF. And it is conceivable that the
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DWARF debugging format might be used with another object file format,
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like COFF, by simply using COFF's custom section feature.
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GDB, and to a lesser extent BFD, should support the notion of separate
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object file formats and debugging information formats. For now, we just
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use "elf" in the same sense as "a.out" or "coff", to imply both the ELF
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object file format and the DWARF debugging format. */
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/* Register that we are able to handle ELF object file formats. */
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static struct sym_fns elf_sym_fns =
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{
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@ -183,9 +183,6 @@ struct complaint unknown_type_qual_complaint =
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struct complaint array_index_type_complaint =
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{"illegal array index type for %s, assuming int", 0, 0};
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struct complaint array_bitsize_complaint =
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{"size of array target type for %s not known, assuming %d bits", 0, 0};
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struct complaint bad_tag_guess_complaint =
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{"guessed tag type of %s incorrectly", 0, 0};
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@ -590,7 +587,15 @@ static struct parse_stack
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struct parse_stack *next, *prev;
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struct symtab *cur_st; /* Current symtab. */
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struct block *cur_block; /* Block in it. */
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int blocktype; /* What are we parsing. */
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/* What are we parsing. stFile, or stBlock are for files and
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blocks. stProc or stStaticProc means we have seen the start of a
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procedure, but not the start of the block within in. When we see
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the start of that block, we change it to stNil, without pushing a
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new block, i.e. stNil means both a procedure and a block. */
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int blocktype;
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int maxsyms; /* Max symbols in this block. */
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struct type *cur_type; /* Type we parse fields for. */
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int cur_field; /* Field number in cur_type. */
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@ -1134,6 +1139,17 @@ parse_symbol (sh, ax, ext_sh, bigend)
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/* beginnning of (code) block. Value of symbol
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is the displacement from procedure start */
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push_parse_stack ();
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/* Do not start a new block if this is the outermost block of a
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procedure. This allows the LOC_BLOCK symbol to point to the
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block with the local variables, so funcname::var works. */
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if (top_stack->blocktype == stProc
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|| top_stack->blocktype == stStaticProc)
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{
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top_stack->blocktype = stNil;
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break;
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}
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top_stack->blocktype = stBlock;
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b = new_block (top_stack->maxsyms);
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BLOCK_START (b) = sh->value + top_stack->procadr;
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@ -1197,6 +1213,12 @@ parse_symbol (sh, ax, ext_sh, bigend)
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BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr;
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shrink_block (top_stack->cur_block, top_stack->cur_st);
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}
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else if (sh->sc == scText && top_stack->blocktype == stNil)
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{
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/* End of outermost block. Pop parse stack and ignore. The
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following stEnd of stProc will take care of the block. */
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;
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}
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else if (sh->sc == scText && top_stack->blocktype == stFile)
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{
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/* End of file. Pop parse stack and ignore. Higher
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@ -1676,20 +1698,19 @@ upgrade_type (fd, tpp, tq, ax, bigend, sym_name)
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t = create_array_type ((struct type *) NULL, *tpp, range);
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/* Check whether supplied array element bit size matches
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the known size of the element type. If this complaint
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ends up not happening, we can remove this code. It's
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here because we aren't sure we understand this *&%&$
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symbol format. */
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id = TYPE_LENGTH (TYPE_TARGET_TYPE (t)) << 3; /* bitsize */
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if (id == 0)
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{
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/* Most likely an undefined type */
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id = rf;
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TYPE_LENGTH (TYPE_TARGET_TYPE (t)) = id >> 3;
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}
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if (id != rf)
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complain (&array_bitsize_complaint, sym_name, rf);
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/* We used to fill in the supplied array element bitsize
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here if the TYPE_LENGTH of the target type was zero.
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This happens for a `pointer to an array of anonymous structs',
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but in this case the array element bitsize is also zero,
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so nothing is gained.
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And we used to check the TYPE_LENGTH of the target type against
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the supplied array element bitsize.
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gcc causes a mismatch for `pointer to array of object',
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since the sdb directives it uses do not have a way of
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specifying the bitsize, but it does no harm (the
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TYPE_LENGTH should be correct) and we should be able to
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ignore the erroneous bitsize from the auxiliary entry safely.
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dbx seems to ignore it too. */
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*tpp = t;
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return 4 + off;
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@ -3595,6 +3616,7 @@ mipscoff_symfile_offsets (objfile, addr)
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struct section_offsets *section_offsets;
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int i;
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objfile->num_sections = SECT_OFF_MAX;
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section_offsets = ((struct section_offsets *)
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obstack_alloc (&objfile->psymbol_obstack,
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(sizeof (struct section_offsets)
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@ -266,7 +266,8 @@ nlm_symfile_offsets (objfile, addr)
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{
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struct section_offsets *section_offsets;
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int i;
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objfile->num_sections = SECT_OFF_MAX;
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section_offsets = (struct section_offsets *)
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obstack_alloc (&objfile -> psymbol_obstack,
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sizeof (struct section_offsets) +
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@ -281,7 +282,7 @@ nlm_symfile_offsets (objfile, addr)
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}
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/* Register that we are able to handle NLM file format. */
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/* Register that we are able to handle NLM file format. */
|
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static struct sym_fns nlm_sym_fns =
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{
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@ -92,9 +92,10 @@ add_to_objfile_sections (abfd, asect, objfile_p_char)
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}
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/* Builds a section table for OBJFILE.
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Returns 0 if OK, 1 on error. */
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Returns 0 if OK, 1 on error (in which case bfd_error contains the
|
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error). */
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static int
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int
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build_objfile_section_table (objfile)
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struct objfile *objfile;
|
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{
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@ -356,6 +357,8 @@ free_objfile (objfile)
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(t->to_detach) (NULL, 0);
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}
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#endif
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/* I *think* all our callers call clear_symtab_users. If so, no need
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to call this here. */
|
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clear_pc_function_cache ();
|
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|
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/* The last thing we do is free the objfile struct itself for the
|
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@ -357,14 +357,13 @@ extern struct objfile *object_files;
|
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|
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/* Declarations for functions defined in objfiles.c */
|
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extern struct objfile *
|
||||
allocate_objfile PARAMS ((bfd *, int));
|
||||
extern struct objfile *allocate_objfile PARAMS ((bfd *, int));
|
||||
|
||||
extern void
|
||||
unlink_objfile PARAMS ((struct objfile *));
|
||||
int build_objfile_section_table PARAMS ((struct objfile *));
|
||||
|
||||
extern void
|
||||
free_objfile PARAMS ((struct objfile *));
|
||||
extern void unlink_objfile PARAMS ((struct objfile *));
|
||||
|
||||
extern void free_objfile PARAMS ((struct objfile *));
|
||||
|
||||
extern void
|
||||
free_all_objfiles PARAMS ((void));
|
||||
|
||||
14
gdb/paread.c
14
gdb/paread.c
@ -487,22 +487,22 @@ pa_symfile_offsets (objfile, addr)
|
||||
{
|
||||
struct section_offsets *section_offsets;
|
||||
int i;
|
||||
|
||||
|
||||
objfile->num_sections = SECT_OFF_MAX;
|
||||
section_offsets = (struct section_offsets *)
|
||||
obstack_alloc (&objfile -> psymbol_obstack,
|
||||
sizeof (struct section_offsets) +
|
||||
sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
|
||||
sizeof (struct section_offsets)
|
||||
+ sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
|
||||
|
||||
for (i = 0; i < SECT_OFF_MAX; i++)
|
||||
ANOFFSET (section_offsets, i) = addr;
|
||||
|
||||
|
||||
return section_offsets;
|
||||
}
|
||||
|
||||
/* Register that we are able to handle PA object file formats. */
|
||||
/* Register that we are able to handle SOM object file formats (does this
|
||||
work for hp300, or just PA? I suspect the latter). */
|
||||
|
||||
/* This is probably a mistake. FIXME. Why can't the HP's use an ordinary
|
||||
file format name with an -hppa suffix? */
|
||||
static struct sym_fns pa_sym_fns =
|
||||
{
|
||||
"som", /* sym_name: name or name prefix of BFD target type */
|
||||
|
||||
16
gdb/remote.c
16
gdb/remote.c
@ -228,7 +228,12 @@ int icache;
|
||||
starts. */
|
||||
serial_t remote_desc = NULL;
|
||||
|
||||
#define PBUFSIZ 1024
|
||||
/* Having this larger than 400 causes us to be incompatible with m68k-stub.c
|
||||
and i386-stub.c. Normally, no one would notice because it only matters
|
||||
for writing large chunks of memory (e.g. in downloads). Also, this needs
|
||||
to be more than 400 if required to hold the registers (see below, where
|
||||
we round it up based on REGISTER_BYTES). */
|
||||
#define PBUFSIZ 400
|
||||
|
||||
/* Maximum number of bytes to read/write at once. The value here
|
||||
is chosen to fill up a packet (the headers account for the 32). */
|
||||
@ -560,12 +565,6 @@ remote_wait (pid, status)
|
||||
stuff. (Just what does "text" as seen by the stub
|
||||
mean, anyway?). */
|
||||
|
||||
/* FIXME: Why don't the various symfile_offsets routines
|
||||
in the sym_fns vectors set this?
|
||||
(no good reason -kingdon). */
|
||||
if (symfile_objfile->num_sections == 0)
|
||||
symfile_objfile->num_sections = SECT_OFF_MAX;
|
||||
|
||||
offs = ((struct section_offsets *)
|
||||
alloca (sizeof (struct section_offsets)
|
||||
+ (symfile_objfile->num_sections
|
||||
@ -798,9 +797,6 @@ remote_write_bytes (memaddr, myaddr, len)
|
||||
int i;
|
||||
char *p;
|
||||
|
||||
if (len > PBUFSIZ / 2 - 20)
|
||||
abort ();
|
||||
|
||||
sprintf (buf, "M%x,%x:", memaddr, len);
|
||||
|
||||
/* We send target system values byte by byte, in increasing byte addresses,
|
||||
|
||||
199
gdb/symfile.c
199
gdb/symfile.c
@ -32,6 +32,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
#include "language.h"
|
||||
#include "complaints.h"
|
||||
#include "demangle.h"
|
||||
#include "inferior.h" /* for write_pc */
|
||||
|
||||
#include <obstack.h>
|
||||
#include <assert.h>
|
||||
@ -214,21 +215,6 @@ sort_symtab_syms (s)
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
sort_all_symtab_syms ()
|
||||
{
|
||||
register struct symtab *s;
|
||||
register struct objfile *objfile;
|
||||
|
||||
for (objfile = object_files; objfile != NULL; objfile = objfile -> next)
|
||||
{
|
||||
for (s = objfile -> symtabs; s != NULL; s = s -> next)
|
||||
{
|
||||
sort_symtab_syms (s);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Make a copy of the string at PTR with SIZE characters in the symbol obstack
|
||||
(and add a null character at the end in the copy).
|
||||
Returns the address of the copy. */
|
||||
@ -317,6 +303,14 @@ init_entry_point_info (objfile)
|
||||
}
|
||||
}
|
||||
|
||||
/* Get current entry point address. */
|
||||
|
||||
CORE_ADDR
|
||||
entry_point_address()
|
||||
{
|
||||
return symfile_objfile ? symfile_objfile->ei.entry_point : 0;
|
||||
}
|
||||
|
||||
/* Remember the lowest-addressed loadable section we've seen.
|
||||
This function is called via bfd_map_over_sections. */
|
||||
|
||||
@ -410,10 +404,10 @@ syms_from_objfile (objfile, addr, mainline, verbo)
|
||||
else if (0 == bfd_get_section_name (objfile->obfd, lowest_sect)
|
||||
|| !STREQ (".text",
|
||||
bfd_get_section_name (objfile->obfd, lowest_sect)))
|
||||
warning ("Lowest section in %s is %s at 0x%x",
|
||||
warning ("Lowest section in %s is %s at 0x%lx",
|
||||
objfile->name,
|
||||
bfd_section_name (objfile->obfd, lowest_sect),
|
||||
bfd_section_vma (objfile->obfd, lowest_sect));
|
||||
(unsigned long) bfd_section_vma (objfile->obfd, lowest_sect));
|
||||
|
||||
if (lowest_sect)
|
||||
addr -= bfd_section_vma (objfile->obfd, lowest_sect);
|
||||
@ -426,9 +420,6 @@ syms_from_objfile (objfile, addr, mainline, verbo)
|
||||
(*objfile -> sf -> sym_init) (objfile);
|
||||
clear_complaints (1, verbo);
|
||||
|
||||
/* If objfile->sf->sym_offsets doesn't set this, we don't care
|
||||
(currently). */
|
||||
objfile->num_sections = 0; /* krp-FIXME: why zero? */
|
||||
section_offsets = (*objfile -> sf -> sym_offsets) (objfile, addr);
|
||||
objfile->section_offsets = section_offsets;
|
||||
|
||||
@ -468,8 +459,10 @@ syms_from_objfile (objfile, addr, mainline, verbo)
|
||||
|
||||
(*objfile -> sf -> sym_read) (objfile, section_offsets, mainline);
|
||||
|
||||
/* Don't allow char * to have a typename (else would get caddr_t.) */
|
||||
/* Ditto void *. FIXME should do this for all the builtin types. */
|
||||
/* 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
|
||||
it from here. */
|
||||
|
||||
TYPE_NAME (lookup_pointer_type (builtin_type_char)) = 0;
|
||||
TYPE_NAME (lookup_pointer_type (builtin_type_void)) = 0;
|
||||
@ -871,9 +864,9 @@ generic_load (filename, from_tty)
|
||||
|
||||
/* Is this really necessary? I guess it gives the user something
|
||||
to look at during a long download. */
|
||||
printf_filtered ("Loading section %s, size 0x%x vma 0x%x\n",
|
||||
printf_filtered ("Loading section %s, size 0x%lx vma 0x%lx\n",
|
||||
bfd_get_section_name (loadfile_bfd, s),
|
||||
size, vma);
|
||||
(unsigned long) size, (unsigned long) vma);
|
||||
|
||||
bfd_get_section_contents (loadfile_bfd, s, buffer, 0, size);
|
||||
|
||||
@ -967,7 +960,7 @@ add_symbol_file_command (args, from_tty)
|
||||
text_addr = parse_and_eval_address (args);
|
||||
|
||||
if (!query ("add symbol table from file \"%s\" at text_addr = %s?\n",
|
||||
name, local_hex_string (text_addr)))
|
||||
name, local_hex_string ((unsigned long)text_addr)))
|
||||
error ("Not confirmed.");
|
||||
|
||||
symbol_file_add (name, 0, text_addr, 0, mapped, readnow);
|
||||
@ -989,7 +982,6 @@ reread_symbols ()
|
||||
This routine should then walk down each partial symbol table
|
||||
and see if the symbol table that it originates from has been changed */
|
||||
|
||||
the_big_top:
|
||||
for (objfile = object_files; objfile; objfile = objfile->next) {
|
||||
if (objfile->obfd) {
|
||||
#ifdef IBM6000_TARGET
|
||||
@ -1008,24 +1000,142 @@ the_big_top:
|
||||
continue;
|
||||
}
|
||||
new_modtime = new_statbuf.st_mtime;
|
||||
if (new_modtime != objfile->mtime) {
|
||||
printf_filtered ("`%s' has changed; re-reading symbols.\n",
|
||||
objfile->name);
|
||||
/* FIXME, this should use a different command...that would only
|
||||
affect this objfile's symbols, and would reset objfile->mtime.
|
||||
(objfile->mtime = new_modtime;)
|
||||
HOWEVER, that command isn't written yet -- so call symbol_file_
|
||||
command, and restart the scan from the top, because it munges
|
||||
the object_files list. */
|
||||
symbol_file_command (objfile->name, 0);
|
||||
reread_one = 1;
|
||||
goto the_big_top; /* Start over. */
|
||||
}
|
||||
if (new_modtime != objfile->mtime)
|
||||
{
|
||||
struct cleanup *old_cleanups;
|
||||
struct section_offsets *offsets;
|
||||
int num_offsets;
|
||||
int section_offsets_size;
|
||||
|
||||
printf_filtered ("`%s' has changed; re-reading symbols.\n",
|
||||
objfile->name);
|
||||
|
||||
/* There are various functions like symbol_file_add,
|
||||
symfile_bfd_open, syms_from_objfile, etc., which might
|
||||
appear to do what we want. But they have various other
|
||||
effects which we *don't* want. So we just do stuff
|
||||
ourselves. We don't worry about mapped files (for one thing,
|
||||
any mapped file will be out of date). */
|
||||
|
||||
/* If we get an error, blow away this objfile (not sure if
|
||||
that is the correct response for things like shared
|
||||
libraries). */
|
||||
old_cleanups = make_cleanup (free_objfile, objfile);
|
||||
/* We need to do this whenever any symbols go away. */
|
||||
make_cleanup (clear_symtab_users, 0);
|
||||
|
||||
/* Clean up any state BFD has sitting around. We don't need
|
||||
to close the descriptor but BFD lacks a way of closing the
|
||||
BFD without closing the descriptor. */
|
||||
if (!bfd_close (objfile->obfd))
|
||||
error ("Can't close BFD for %s.", objfile->name);
|
||||
objfile->obfd = bfd_openr (objfile->name, gnutarget);
|
||||
if (objfile->obfd == NULL)
|
||||
error ("Can't open %s to read symbols.", objfile->name);
|
||||
/* bfd_openr sets cacheable to true, which is what we want. */
|
||||
if (!bfd_check_format (objfile->obfd, bfd_object))
|
||||
error ("Can't read symbols from %s: %s.", objfile->name,
|
||||
bfd_errmsg (bfd_error));
|
||||
|
||||
/* Save the offsets, we will nuke them with the rest of the
|
||||
psymbol_obstack. */
|
||||
num_offsets = objfile->num_sections;
|
||||
section_offsets_size =
|
||||
sizeof (struct section_offsets)
|
||||
+ sizeof (objfile->section_offsets->offsets) * num_offsets;
|
||||
offsets = (struct section_offsets *) alloca (section_offsets_size);
|
||||
memcpy (offsets, objfile->section_offsets, section_offsets_size);
|
||||
|
||||
/* Nuke all the state that we will re-read. Much of the following
|
||||
code which sets things to NULL really is necessary to tell
|
||||
other parts of GDB that there is nothing currently there. */
|
||||
|
||||
/* 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);
|
||||
objfile->global_psymbols.list = NULL;
|
||||
objfile->global_psymbols.size = 0;
|
||||
if (objfile->static_psymbols.list)
|
||||
mfree (objfile->md, objfile->static_psymbols.list);
|
||||
objfile->static_psymbols.list = NULL;
|
||||
objfile->static_psymbols.size = 0;
|
||||
|
||||
/* Free the obstacks for non-reusable objfiles */
|
||||
obstack_free (&objfile -> psymbol_obstack, 0);
|
||||
obstack_free (&objfile -> symbol_obstack, 0);
|
||||
obstack_free (&objfile -> type_obstack, 0);
|
||||
objfile->sections = NULL;
|
||||
objfile->symtabs = NULL;
|
||||
objfile->psymtabs = NULL;
|
||||
objfile->free_psymtabs = NULL;
|
||||
objfile->msymbols = NULL;
|
||||
objfile->minimal_symbol_count= 0;
|
||||
objfile->fundamental_types = NULL;
|
||||
if (objfile -> sf != NULL)
|
||||
{
|
||||
(*objfile -> sf -> sym_finish) (objfile);
|
||||
}
|
||||
|
||||
/* We never make this a mapped file. */
|
||||
objfile -> md = NULL;
|
||||
/* obstack_specify_allocation also initializes the obstack so
|
||||
it is empty. */
|
||||
obstack_specify_allocation (&objfile -> psymbol_obstack, 0, 0,
|
||||
xmalloc, free);
|
||||
obstack_specify_allocation (&objfile -> symbol_obstack, 0, 0,
|
||||
xmalloc, free);
|
||||
obstack_specify_allocation (&objfile -> type_obstack, 0, 0,
|
||||
xmalloc, free);
|
||||
if (build_objfile_section_table (objfile))
|
||||
{
|
||||
error ("Can't find the file sections in `%s': %s",
|
||||
objfile -> name, bfd_errmsg (bfd_error));
|
||||
}
|
||||
|
||||
/* We use the same section offsets as from last time. I'm not
|
||||
sure whether that is always correct for shared libraries. */
|
||||
objfile->section_offsets = (struct section_offsets *)
|
||||
obstack_alloc (&objfile -> psymbol_obstack, section_offsets_size);
|
||||
memcpy (objfile->section_offsets, offsets, section_offsets_size);
|
||||
objfile->num_sections = num_offsets;
|
||||
|
||||
/* What the hell is sym_new_init for, anyway? The concept of
|
||||
distinguishing between the main file and additional files
|
||||
in this way seems rather dubious. */
|
||||
if (objfile == symfile_objfile)
|
||||
(*objfile->sf->sym_new_init) (objfile);
|
||||
|
||||
(*objfile->sf->sym_init) (objfile);
|
||||
clear_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->sf->sym_read) (objfile, objfile->section_offsets, 0);
|
||||
objfile -> flags |= OBJF_SYMS;
|
||||
|
||||
/* We're done reading the symbol file; finish off complaints. */
|
||||
clear_complaints (0, 1);
|
||||
|
||||
/* Getting new symbols may change our opinion about what is
|
||||
frameless. */
|
||||
|
||||
reinit_frame_cache ();
|
||||
|
||||
/* Discard cleanups as symbol reading was successful. */
|
||||
discard_cleanups (old_cleanups);
|
||||
|
||||
/* If the mtime has changed between the time we set new_modtime
|
||||
and now, we *want* this to be out of date, so don't call stat
|
||||
again now. */
|
||||
objfile->mtime = new_modtime;
|
||||
reread_one = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (reread_one)
|
||||
breakpoint_re_set ();
|
||||
clear_symtab_users ();
|
||||
}
|
||||
|
||||
|
||||
@ -1039,13 +1149,13 @@ deduce_language_from_filename (filename)
|
||||
; /* Get default */
|
||||
else if (0 == (c = strrchr (filename, '.')))
|
||||
; /* Get default. */
|
||||
else if(STREQ(c,".mod"))
|
||||
else if (STREQ(c,".mod"))
|
||||
return language_m2;
|
||||
else if(STREQ(c,".c"))
|
||||
else if (STREQ(c,".c"))
|
||||
return language_c;
|
||||
else if(STREQ(c,".cc") || STREQ(c,".C"))
|
||||
else if (STREQ (c,".cc") || STREQ (c,".C") || STREQ (c, ".cxx"))
|
||||
return language_cplus;
|
||||
else if(STREQ(c,".ch") || STREQ(c,".c186") || STREQ(c,".c286"))
|
||||
else if (STREQ (c,".ch") || STREQ (c,".c186") || STREQ (c,".c286"))
|
||||
return language_chill;
|
||||
|
||||
return language_unknown; /* default */
|
||||
@ -1141,6 +1251,7 @@ clear_symtab_users ()
|
||||
set_default_breakpoint (0, 0, 0, 0);
|
||||
current_source_symtab = 0;
|
||||
current_source_line = 0;
|
||||
clear_pc_function_cache ();
|
||||
}
|
||||
|
||||
/* clear_symtab_users_once:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user