+++ /dev/null
-/* Shared code to pre-read a stab (dbx-style), when building a psymtab.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001
- Free Software Foundation, Inc.
-
- This file is part of GDB.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-/* The following need to be defined:
- SET_NAMESTRING() --Set namestring to name of symbol.
- CUR_SYMBOL_TYPE --Type code of current symbol.
- CUR_SYMBOL_VALUE --Value field of current symbol. May be adjusted here.
- namestring - variable pointing to the name of the stab.
- pst - the partial symbol table being built.
-
- psymtab_include_list, includes_used, includes_allocated - list of include
- file names (N_SOL) seen so far.
- dependency_list, dependencies_used, dependencies_allocated - list of
- N_EXCL stabs seen so far.
-
- END_PSYMTAB -- end a partial symbol table.
- START_PSYMTAB -- start a partial symbol table.
- */
-
-/* End of macro definitions, now let's handle them symbols! */
-
-switch (CUR_SYMBOL_TYPE)
- {
- static struct complaint function_outside_compilation_unit = {
- "function `%s' appears to be defined outside of all compilation units", 0, 0
- };
- char *p;
- /*
- * Standard, external, non-debugger, symbols
- */
-
- case N_TEXT | N_EXT:
- case N_NBTEXT | N_EXT:
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
- goto record_it;
-
- case N_DATA | N_EXT:
- case N_NBDATA | N_EXT:
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
- goto record_it;
-
- case N_BSS:
- case N_BSS | N_EXT:
- case N_NBBSS | N_EXT:
- case N_SETV | N_EXT: /* FIXME, is this in BSS? */
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
- goto record_it;
-
- case N_ABS | N_EXT:
- record_it:
-#ifdef DBXREAD_ONLY
- SET_NAMESTRING ();
-
- bss_ext_symbol:
- record_minimal_symbol (namestring, CUR_SYMBOL_VALUE,
- CUR_SYMBOL_TYPE, objfile); /* Always */
-#endif /* DBXREAD_ONLY */
- continue;
-
- /* Standard, local, non-debugger, symbols */
-
- case N_NBTEXT:
-
- /* We need to be able to deal with both N_FN or N_TEXT,
- because we have no way of knowing whether the sys-supplied ld
- or GNU ld was used to make the executable. Sequents throw
- in another wrinkle -- they renumbered N_FN. */
-
- case N_FN:
- case N_FN_SEQ:
- case N_TEXT:
-#ifdef DBXREAD_ONLY
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
- SET_NAMESTRING ();
- if ((namestring[0] == '-' && namestring[1] == 'l')
- || (namestring[(nsl = strlen (namestring)) - 1] == 'o'
- && namestring[nsl - 2] == '.'))
- {
- if (objfile->ei.entry_point < CUR_SYMBOL_VALUE &&
- objfile->ei.entry_point >= last_o_file_start)
- {
- objfile->ei.entry_file_lowpc = last_o_file_start;
- objfile->ei.entry_file_highpc = CUR_SYMBOL_VALUE;
- }
- if (past_first_source_file && pst
- /* The gould NP1 uses low values for .o and -l symbols
- which are not the address. */
- && CUR_SYMBOL_VALUE >= TEXTLOW (pst))
- {
- END_PSYMTAB (pst, psymtab_include_list, includes_used,
- symnum * symbol_size,
- CUR_SYMBOL_VALUE > TEXTHIGH (pst)
- ? CUR_SYMBOL_VALUE : TEXTHIGH (pst),
- dependency_list, dependencies_used, textlow_not_set);
- pst = (struct partial_symtab *) 0;
- includes_used = 0;
- dependencies_used = 0;
- }
- else
- past_first_source_file = 1;
- last_o_file_start = CUR_SYMBOL_VALUE;
- }
- else
- goto record_it;
-#endif /* DBXREAD_ONLY */
- continue;
-
- case N_DATA:
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
- goto record_it;
-
- case N_UNDF | N_EXT:
-#ifdef DBXREAD_ONLY
- if (CUR_SYMBOL_VALUE != 0)
- {
- /* This is a "Fortran COMMON" symbol. See if the target
- environment knows where it has been relocated to. */
-
- CORE_ADDR reladdr;
-
- SET_NAMESTRING ();
- if (target_lookup_symbol (namestring, &reladdr))
- {
- continue; /* Error in lookup; ignore symbol for now. */
- }
- CUR_SYMBOL_TYPE ^= (N_BSS ^ N_UNDF); /* Define it as a bss-symbol */
- CUR_SYMBOL_VALUE = reladdr;
- goto bss_ext_symbol;
- }
-#endif /* DBXREAD_ONLY */
- continue; /* Just undefined, not COMMON */
-
- case N_UNDF:
-#ifdef DBXREAD_ONLY
- if (processing_acc_compilation && CUR_SYMBOL_STRX == 1)
- {
- /* Deal with relative offsets in the string table
- used in ELF+STAB under Solaris. If we want to use the
- n_strx field, which contains the name of the file,
- we must adjust file_string_table_offset *before* calling
- SET_NAMESTRING(). */
- past_first_source_file = 1;
- file_string_table_offset = next_file_string_table_offset;
- next_file_string_table_offset =
- file_string_table_offset + CUR_SYMBOL_VALUE;
- if (next_file_string_table_offset < file_string_table_offset)
- error ("string table offset backs up at %d", symnum);
- /* FIXME -- replace error() with complaint. */
- continue;
- }
-#endif /* DBXREAD_ONLY */
- continue;
-
- /* Lots of symbol types we can just ignore. */
-
- case N_ABS:
- case N_NBDATA:
- case N_NBBSS:
- continue;
-
- /* Keep going . . . */
-
- /*
- * Special symbol types for GNU
- */
- case N_INDR:
- case N_INDR | N_EXT:
- case N_SETA:
- case N_SETA | N_EXT:
- case N_SETT:
- case N_SETT | N_EXT:
- case N_SETD:
- case N_SETD | N_EXT:
- case N_SETB:
- case N_SETB | N_EXT:
- case N_SETV:
- continue;
-
- /*
- * Debugger symbols
- */
-
- case N_SO:
- {
- CORE_ADDR valu;
- static int prev_so_symnum = -10;
- static int first_so_symnum;
- char *p;
- int prev_textlow_not_set;
-
- valu = CUR_SYMBOL_VALUE + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
-
- prev_textlow_not_set = textlow_not_set;
-
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
- /* A zero value is probably an indication for the SunPRO 3.0
- compiler. end_psymtab explicitly tests for zero, so
- don't relocate it. */
-
- if (CUR_SYMBOL_VALUE == 0)
- {
- textlow_not_set = 1;
- valu = 0;
- }
- else
- textlow_not_set = 0;
-#else
- textlow_not_set = 0;
-#endif
- past_first_source_file = 1;
-
- if (prev_so_symnum != symnum - 1)
- { /* Here if prev stab wasn't N_SO */
- first_so_symnum = symnum;
-
- if (pst)
- {
- END_PSYMTAB (pst, psymtab_include_list, includes_used,
- symnum * symbol_size,
- valu > TEXTHIGH (pst) ? valu : TEXTHIGH (pst),
- dependency_list, dependencies_used,
- prev_textlow_not_set);
- pst = (struct partial_symtab *) 0;
- includes_used = 0;
- dependencies_used = 0;
- }
- }
-
- prev_so_symnum = symnum;
-
- /* End the current partial symtab and start a new one */
-
- SET_NAMESTRING ();
-
- /* Null name means end of .o file. Don't start a new one. */
- if (*namestring == '\000')
- continue;
-
- /* Some compilers (including gcc) emit a pair of initial N_SOs.
- The first one is a directory name; the second the file name.
- If pst exists, is empty, and has a filename ending in '/',
- we assume the previous N_SO was a directory name. */
-
- p = strrchr (namestring, '/');
- if (p && *(p + 1) == '\000')
- continue; /* Simply ignore directory name SOs */
-
- /* Some other compilers (C++ ones in particular) emit useless
- SOs for non-existant .c files. We ignore all subsequent SOs that
- immediately follow the first. */
-
- if (!pst)
- pst = START_PSYMTAB (objfile,
- namestring, valu,
- first_so_symnum * symbol_size,
- objfile->global_psymbols.next,
- objfile->static_psymbols.next);
- continue;
- }
-
- case N_BINCL:
- {
-#ifdef DBXREAD_ONLY
- enum language tmp_language;
- /* Add this bincl to the bincl_list for future EXCLs. No
- need to save the string; it'll be around until
- read_dbx_symtab function returns */
-
- SET_NAMESTRING ();
-
- tmp_language = deduce_language_from_filename (namestring);
-
- /* Only change the psymtab's language if we've learned
- something useful (eg. tmp_language is not language_unknown).
- In addition, to match what start_subfile does, never change
- from C++ to C. */
- if (tmp_language != language_unknown
- && (tmp_language != language_c
- || psymtab_language != language_cplus))
- psymtab_language = tmp_language;
-
- if (pst == NULL)
- {
- /* FIXME: we should not get here without a PST to work on.
- Attempt to recover. */
- complain (&unclaimed_bincl_complaint, namestring, symnum);
- continue;
- }
- add_bincl_to_list (pst, namestring, CUR_SYMBOL_VALUE);
-
- /* Mark down an include file in the current psymtab */
-
- goto record_include_file;
-
-#else /* DBXREAD_ONLY */
- continue;
-#endif
- }
-
- case N_SOL:
- {
- enum language tmp_language;
- /* Mark down an include file in the current psymtab */
-
- SET_NAMESTRING ();
-
- tmp_language = deduce_language_from_filename (namestring);
-
- /* Only change the psymtab's language if we've learned
- something useful (eg. tmp_language is not language_unknown).
- In addition, to match what start_subfile does, never change
- from C++ to C. */
- if (tmp_language != language_unknown
- && (tmp_language != language_c
- || psymtab_language != language_cplus))
- psymtab_language = tmp_language;
-
- /* In C++, one may expect the same filename to come round many
- times, when code is coming alternately from the main file
- and from inline functions in other files. So I check to see
- if this is a file we've seen before -- either the main
- source file, or a previously included file.
-
- This seems to be a lot of time to be spending on N_SOL, but
- things like "break c-exp.y:435" need to work (I
- suppose the psymtab_include_list could be hashed or put
- in a binary tree, if profiling shows this is a major hog). */
- if (pst && STREQ (namestring, pst->filename))
- continue;
- {
- register int i;
- for (i = 0; i < includes_used; i++)
- if (STREQ (namestring, psymtab_include_list[i]))
- {
- i = -1;
- break;
- }
- if (i == -1)
- continue;
- }
-
-#ifdef DBXREAD_ONLY
- record_include_file:
-#endif
-
- psymtab_include_list[includes_used++] = namestring;
- if (includes_used >= includes_allocated)
- {
- char **orig = psymtab_include_list;
-
- psymtab_include_list = (char **)
- alloca ((includes_allocated *= 2) *
- sizeof (char *));
- memcpy ((PTR) psymtab_include_list, (PTR) orig,
- includes_used * sizeof (char *));
- }
- continue;
- }
- case N_LSYM: /* Typedef or automatic variable. */
- case N_STSYM: /* Data seg var -- static */
- case N_LCSYM: /* BSS " */
- case N_ROSYM: /* Read-only data seg var -- static. */
- case N_NBSTS: /* Gould nobase. */
- case N_NBLCS: /* symbols. */
- case N_FUN:
- case N_GSYM: /* Global (extern) variable; can be
- data or bss (sigh FIXME). */
-
- /* Following may probably be ignored; I'll leave them here
- for now (until I do Pascal and Modula 2 extensions). */
-
- case N_PC: /* I may or may not need this; I
- suspect not. */
- case N_M2C: /* I suspect that I can ignore this here. */
- case N_SCOPE: /* Same. */
-
- SET_NAMESTRING ();
-
-#ifdef DBXREAD_ONLY
- /* See if this is an end of function stab. */
- if (pst && CUR_SYMBOL_TYPE == N_FUN && *namestring == '\000')
- {
- CORE_ADDR valu;
-
- /* It's value is the size (in bytes) of the function for
- function relative stabs, or the address of the function's
- end for old style stabs. */
- valu = CUR_SYMBOL_VALUE + last_function_start;
- if (TEXTHIGH (pst) == 0 || valu > TEXTHIGH (pst))
- TEXTHIGH (pst) = valu;
- break;
- }
-#endif
-
- p = (char *) strchr (namestring, ':');
- if (!p)
- continue; /* Not a debugging symbol. */
-
-
-
- /* Main processing section for debugging symbols which
- the initial read through the symbol tables needs to worry
- about. If we reach this point, the symbol which we are
- considering is definitely one we are interested in.
- p must also contain the (valid) index into the namestring
- which indicates the debugging type symbol. */
-
- switch (p[1])
- {
- case 'S':
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
-#ifdef STATIC_TRANSFORM_NAME
- namestring = STATIC_TRANSFORM_NAME (namestring);
-#endif
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_STATIC,
- &objfile->static_psymbols,
- 0, CUR_SYMBOL_VALUE,
- psymtab_language, objfile);
- continue;
- case 'G':
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
- /* The addresses in these entries are reported to be
- wrong. See the code that reads 'G's for symtabs. */
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_STATIC,
- &objfile->global_psymbols,
- 0, CUR_SYMBOL_VALUE,
- psymtab_language, objfile);
- continue;
-
- case 'T':
- /* When a 'T' entry is defining an anonymous enum, it
- may have a name which is the empty string, or a
- single space. Since they're not really defining a
- symbol, those shouldn't go in the partial symbol
- table. We do pick up the elements of such enums at
- 'check_enum:', below. */
- if (p >= namestring + 2
- || (p == namestring + 1
- && namestring[0] != ' '))
- {
- add_psymbol_to_list (namestring, p - namestring,
- STRUCT_NAMESPACE, LOC_TYPEDEF,
- &objfile->static_psymbols,
- CUR_SYMBOL_VALUE, 0,
- psymtab_language, objfile);
- if (p[2] == 't')
- {
- /* Also a typedef with the same name. */
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_TYPEDEF,
- &objfile->static_psymbols,
- CUR_SYMBOL_VALUE, 0,
- psymtab_language, objfile);
- p += 1;
- }
- /* The semantics of C++ state that "struct foo { ... }"
- also defines a typedef for "foo". Unfortuantely, cfront
- never makes the typedef when translating from C++ to C.
- We make the typedef here so that "ptype foo" works as
- expected for cfront translated code. */
- else if (psymtab_language == language_cplus)
- {
- /* Also a typedef with the same name. */
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_TYPEDEF,
- &objfile->static_psymbols,
- CUR_SYMBOL_VALUE, 0,
- psymtab_language, objfile);
- }
- }
- goto check_enum;
- case 't':
- if (p != namestring) /* a name is there, not just :T... */
- {
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_TYPEDEF,
- &objfile->static_psymbols,
- CUR_SYMBOL_VALUE, 0,
- psymtab_language, objfile);
- }
- check_enum:
- /* If this is an enumerated type, we need to
- add all the enum constants to the partial symbol
- table. This does not cover enums without names, e.g.
- "enum {a, b} c;" in C, but fortunately those are
- rare. There is no way for GDB to find those from the
- enum type without spending too much time on it. Thus
- to solve this problem, the compiler needs to put out the
- enum in a nameless type. GCC2 does this. */
-
- /* We are looking for something of the form
- <name> ":" ("t" | "T") [<number> "="] "e"
- {<constant> ":" <value> ","} ";". */
-
- /* Skip over the colon and the 't' or 'T'. */
- p += 2;
- /* This type may be given a number. Also, numbers can come
- in pairs like (0,26). Skip over it. */
- while ((*p >= '0' && *p <= '9')
- || *p == '(' || *p == ',' || *p == ')'
- || *p == '=')
- p++;
-
- if (*p++ == 'e')
- {
- /* The aix4 compiler emits extra crud before the members. */
- if (*p == '-')
- {
- /* Skip over the type (?). */
- while (*p != ':')
- p++;
-
- /* Skip over the colon. */
- p++;
- }
-
- /* We have found an enumerated type. */
- /* According to comments in read_enum_type
- a comma could end it instead of a semicolon.
- I don't know where that happens.
- Accept either. */
- while (*p && *p != ';' && *p != ',')
- {
- char *q;
-
- /* Check for and handle cretinous dbx symbol name
- continuation! */
- if (*p == '\\' || (*p == '?' && p[1] == '\0'))
- p = next_symbol_text (objfile);
-
- /* Point to the character after the name
- of the enum constant. */
- for (q = p; *q && *q != ':'; q++)
- ;
- /* Note that the value doesn't matter for
- enum constants in psymtabs, just in symtabs. */
- add_psymbol_to_list (p, q - p,
- VAR_NAMESPACE, LOC_CONST,
- &objfile->static_psymbols, 0,
- 0, psymtab_language, objfile);
- /* Point past the name. */
- p = q;
- /* Skip over the value. */
- while (*p && *p != ',')
- p++;
- /* Advance past the comma. */
- if (*p)
- p++;
- }
- }
- continue;
- case 'c':
- /* Constant, e.g. from "const" in Pascal. */
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_CONST,
- &objfile->static_psymbols, CUR_SYMBOL_VALUE,
- 0, psymtab_language, objfile);
- continue;
-
- case 'f':
- if (! pst)
- {
- int name_len = p - namestring;
- char *name = xmalloc (name_len + 1);
- memcpy (name, namestring, name_len);
- name[name_len] = '\0';
- complain (&function_outside_compilation_unit, name);
- xfree (name);
- }
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
-#ifdef DBXREAD_ONLY
- /* Kludges for ELF/STABS with Sun ACC */
- last_function_name = namestring;
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
- /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
- value for the bottom of the text seg in those cases. */
- if (CUR_SYMBOL_VALUE == ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile)))
- {
- CORE_ADDR minsym_valu =
- find_stab_function_addr (namestring, pst->filename, objfile);
- /* find_stab_function_addr will return 0 if the minimal
- symbol wasn't found. (Unfortunately, this might also
- be a valid address.) Anyway, if it *does* return 0,
- it is likely that the value was set correctly to begin
- with... */
- if (minsym_valu != 0)
- CUR_SYMBOL_VALUE = minsym_valu;
- }
- if (pst && textlow_not_set)
- {
- TEXTLOW (pst) = CUR_SYMBOL_VALUE;
- textlow_not_set = 0;
- }
-#endif
- /* End kludge. */
-
- /* Keep track of the start of the last function so we
- can handle end of function symbols. */
- last_function_start = CUR_SYMBOL_VALUE;
-
- /* In reordered executables this function may lie outside
- the bounds created by N_SO symbols. If that's the case
- use the address of this function as the low bound for
- the partial symbol table. */
- if (pst
- && (textlow_not_set
- || (CUR_SYMBOL_VALUE < TEXTLOW (pst)
- && (CUR_SYMBOL_VALUE
- != ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile))))))
- {
- TEXTLOW (pst) = CUR_SYMBOL_VALUE;
- textlow_not_set = 0;
- }
-#endif /* DBXREAD_ONLY */
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_BLOCK,
- &objfile->static_psymbols,
- 0, CUR_SYMBOL_VALUE,
- psymtab_language, objfile);
- continue;
-
- /* Global functions were ignored here, but now they
- are put into the global psymtab like one would expect.
- They're also in the minimal symbol table. */
- case 'F':
- if (! pst)
- {
- int name_len = p - namestring;
- char *name = xmalloc (name_len + 1);
- memcpy (name, namestring, name_len);
- name[name_len] = '\0';
- complain (&function_outside_compilation_unit, name);
- xfree (name);
- }
- CUR_SYMBOL_VALUE += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
-#ifdef DBXREAD_ONLY
- /* Kludges for ELF/STABS with Sun ACC */
- last_function_name = namestring;
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
- /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
- value for the bottom of the text seg in those cases. */
- if (CUR_SYMBOL_VALUE == ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile)))
- {
- CORE_ADDR minsym_valu =
- find_stab_function_addr (namestring, pst->filename, objfile);
- /* find_stab_function_addr will return 0 if the minimal
- symbol wasn't found. (Unfortunately, this might also
- be a valid address.) Anyway, if it *does* return 0,
- it is likely that the value was set correctly to begin
- with... */
- if (minsym_valu != 0)
- CUR_SYMBOL_VALUE = minsym_valu;
- }
- if (pst && textlow_not_set)
- {
- TEXTLOW (pst) = CUR_SYMBOL_VALUE;
- textlow_not_set = 0;
- }
-#endif
- /* End kludge. */
-
- /* Keep track of the start of the last function so we
- can handle end of function symbols. */
- last_function_start = CUR_SYMBOL_VALUE;
-
- /* In reordered executables this function may lie outside
- the bounds created by N_SO symbols. If that's the case
- use the address of this function as the low bound for
- the partial symbol table. */
- if (pst
- && (textlow_not_set
- || (CUR_SYMBOL_VALUE < TEXTLOW (pst)
- && (CUR_SYMBOL_VALUE
- != ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile))))))
- {
- TEXTLOW (pst) = CUR_SYMBOL_VALUE;
- textlow_not_set = 0;
- }
-#endif /* DBXREAD_ONLY */
- add_psymbol_to_list (namestring, p - namestring,
- VAR_NAMESPACE, LOC_BLOCK,
- &objfile->global_psymbols,
- 0, CUR_SYMBOL_VALUE,
- psymtab_language, objfile);
- continue;
-
- /* Two things show up here (hopefully); static symbols of
- local scope (static used inside braces) or extensions
- of structure symbols. We can ignore both. */
- case 'V':
- case '(':
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- case '-':
- case '#': /* for symbol identification (used in live ranges) */
- /* added to support cfront stabs strings */
- case 'Z': /* for definition continuations */
- case 'P': /* for prototypes */
- continue;
-
- case ':':
- /* It is a C++ nested symbol. We don't need to record it
- (I don't think); if we try to look up foo::bar::baz,
- then symbols for the symtab containing foo should get
- read in, I think. */
- /* Someone says sun cc puts out symbols like
- /foo/baz/maclib::/usr/local/bin/maclib,
- which would get here with a symbol type of ':'. */
- continue;
-
- default:
- /* Unexpected symbol descriptor. The second and subsequent stabs
- of a continued stab can show up here. The question is
- whether they ever can mimic a normal stab--it would be
- nice if not, since we certainly don't want to spend the
- time searching to the end of every string looking for
- a backslash. */
-
- complain (&unknown_symchar_complaint, p[1]);
-
- /* Ignore it; perhaps it is an extension that we don't
- know about. */
- continue;
- }
-
- case N_EXCL:
-#ifdef DBXREAD_ONLY
-
- SET_NAMESTRING ();
-
- /* Find the corresponding bincl and mark that psymtab on the
- psymtab dependency list */
- {
- struct partial_symtab *needed_pst =
- find_corresponding_bincl_psymtab (namestring, CUR_SYMBOL_VALUE);
-
- /* If this include file was defined earlier in this file,
- leave it alone. */
- if (needed_pst == pst)
- continue;
-
- if (needed_pst)
- {
- int i;
- int found = 0;
-
- for (i = 0; i < dependencies_used; i++)
- if (dependency_list[i] == needed_pst)
- {
- found = 1;
- break;
- }
-
- /* If it's already in the list, skip the rest. */
- if (found)
- continue;
-
- dependency_list[dependencies_used++] = needed_pst;
- if (dependencies_used >= dependencies_allocated)
- {
- struct partial_symtab **orig = dependency_list;
- dependency_list =
- (struct partial_symtab **)
- alloca ((dependencies_allocated *= 2)
- * sizeof (struct partial_symtab *));
- memcpy ((PTR) dependency_list, (PTR) orig,
- (dependencies_used
- * sizeof (struct partial_symtab *)));
-#ifdef DEBUG_INFO
- fprintf_unfiltered (gdb_stderr, "Had to reallocate dependency list.\n");
- fprintf_unfiltered (gdb_stderr, "New dependencies allocated: %d\n",
- dependencies_allocated);
-#endif
- }
- }
- }
-#endif /* DBXREAD_ONLY */
- continue;
-
- case N_ENDM:
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
- /* Solaris 2 end of module, finish current partial symbol table.
- END_PSYMTAB will set TEXTHIGH (pst) to the proper value, which
- is necessary if a module compiled without debugging info
- follows this module. */
- if (pst)
- {
- END_PSYMTAB (pst, psymtab_include_list, includes_used,
- symnum * symbol_size,
- (CORE_ADDR) 0,
- dependency_list, dependencies_used, textlow_not_set);
- pst = (struct partial_symtab *) 0;
- includes_used = 0;
- dependencies_used = 0;
- }
-#endif
- continue;
-
- case N_RBRAC:
-#ifdef HANDLE_RBRAC
- HANDLE_RBRAC (CUR_SYMBOL_VALUE);
- continue;
-#endif
- case N_EINCL:
- case N_DSLINE:
- case N_BSLINE:
- case N_SSYM: /* Claim: Structure or union element.
- Hopefully, I can ignore this. */
- case N_ENTRY: /* Alternate entry point; can ignore. */
- case N_MAIN: /* Can definitely ignore this. */
- case N_CATCH: /* These are GNU C++ extensions */
- case N_EHDECL: /* that can safely be ignored here. */
- case N_LENG:
- case N_BCOMM:
- case N_ECOMM:
- case N_ECOML:
- case N_FNAME:
- case N_SLINE:
- case N_RSYM:
- case N_PSYM:
- case N_LBRAC:
- case N_NSYMS: /* Ultrix 4.0: symbol count */
- case N_DEFD: /* GNU Modula-2 */
- case N_ALIAS: /* SunPro F77: alias name, ignore for now. */
-
- case N_OBJ: /* useless types from Solaris */
- case N_OPT:
- /* These symbols aren't interesting; don't worry about them */
-
- continue;
-
- default:
- /* If we haven't found it yet, ignore it. It's probably some
- new type we don't know about yet. */
- complain (&unknown_symtype_complaint,
- local_hex_string (CUR_SYMBOL_TYPE));
- continue;
- }
projects / external / binutils.git / commitdiff