813 lines
24 KiB
C
813 lines
24 KiB
C
/* Shared code to pre-read a stab (dbx-style), when building a psymtab.
|
|
Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
|
|
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.
|
|
section_offsets - variable pointing to the section offsets.
|
|
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 (section_offsets, SECT_OFF_TEXT);
|
|
goto record_it;
|
|
|
|
case N_DATA | N_EXT:
|
|
case N_NBDATA | N_EXT:
|
|
CUR_SYMBOL_VALUE += ANOFFSET (section_offsets, SECT_OFF_DATA);
|
|
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 (section_offsets, SECT_OFF_BSS);
|
|
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 (section_offsets, SECT_OFF_TEXT);
|
|
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 (section_offsets, SECT_OFF_DATA);
|
|
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 (section_offsets, SECT_OFF_TEXT);
|
|
|
|
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, section_offsets,
|
|
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 (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 (section_offsets, SECT_OFF_DATA);
|
|
#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 (section_offsets, SECT_OFF_DATA);
|
|
/* 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 (section_offsets, SECT_OFF_TEXT);
|
|
#ifdef DBXREAD_ONLY
|
|
/* Keep track of the start of the last function so we
|
|
can handle end of function symbols. */
|
|
last_function_start = CUR_SYMBOL_VALUE;
|
|
/* 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, objfile);
|
|
textlow_not_set = 0;
|
|
}
|
|
#endif
|
|
/* End kludge. */
|
|
|
|
/* 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
|
|
|| (CUR_SYMBOL_VALUE < pst->textlow
|
|
&& CUR_SYMBOL_VALUE
|
|
!= ANOFFSET (section_offsets, SECT_OFF_TEXT)))
|
|
{
|
|
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 (section_offsets, SECT_OFF_TEXT);
|
|
#ifdef DBXREAD_ONLY
|
|
/* Keep track of the start of the last function so we
|
|
can handle end of function symbols. */
|
|
last_function_start = CUR_SYMBOL_VALUE;
|
|
/* 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, objfile);
|
|
textlow_not_set = 0;
|
|
}
|
|
#endif
|
|
/* End kludge. */
|
|
/* 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
|
|
|| (CUR_SYMBOL_VALUE < pst->textlow
|
|
&& CUR_SYMBOL_VALUE
|
|
!= ANOFFSET (section_offsets, SECT_OFF_TEXT)))
|
|
{
|
|
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;
|
|
}
|