| /* 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) |
| { |
| 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 >= pst->textlow) |
| { |
| END_PSYMTAB (pst, psymtab_include_list, includes_used, |
| symnum * symbol_size, |
| CUR_SYMBOL_VALUE > pst->texthigh |
| ? CUR_SYMBOL_VALUE : pst->texthigh, |
| 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: |
| { |
| unsigned long 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 > pst->texthigh ? valu : pst->texthigh, |
| 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') |
| { |
| unsigned long 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 (pst->texthigh == 0 || valu > pst->texthigh) |
| pst->texthigh = 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': |
| 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 (pst && textlow_not_set) |
| { |
| pst->textlow = |
| find_stab_function_addr (namestring, pst->filename, objfile); |
| 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 (textlow_not_set |
| || (pst && CUR_SYMBOL_VALUE < pst->textlow |
| && CUR_SYMBOL_VALUE |
| != ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)))) |
| { |
| pst->textlow = 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': |
| 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))) |
| CUR_SYMBOL_VALUE = |
| find_stab_function_addr (namestring, pst->filename, objfile); |
| if (pst && textlow_not_set) |
| { |
| pst->textlow = 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 (textlow_not_set |
| || (pst && CUR_SYMBOL_VALUE < pst->textlow |
| && CUR_SYMBOL_VALUE |
| != ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)))) |
| { |
| pst->textlow = 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 pst->texthigh 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; |
| } |