/* Symbol table lookup for the GNU debugger, GDB.
- Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
+ 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.
#include "language.h"
#include "demangle.h"
#include "inferior.h"
+#include "linespec.h"
#include "obstack.h"
#include "gdb_string.h"
#include "gdb_stat.h"
#include <ctype.h>
+#include "cp-abi.h"
/* Prototype for one function in parser-defs.h,
instead of including that entire file. */
/* Prototypes for local functions */
-static int find_methods (struct type *, char *, struct symbol **);
-
static void completion_list_add_name (char *, char *, int, char *, char *);
-static void build_canonical_line_spec (struct symtab_and_line *,
- char *, char ***);
-
-static struct symtabs_and_lines decode_line_2 (struct symbol *[],
- int, int, char ***);
-
static void rbreak_command (char *, int);
static void types_info (char *, int);
static void output_source_filename (char *, int *);
-char *operator_chars (char *, char **);
-
static int find_line_common (struct linetable *, int, int *);
+/* This one is used by linespec.c */
+
+char *operator_chars (char *p, char **end);
+
static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *,
const char *, int,
namespace_enum);
-static struct partial_symbol *fixup_psymbol_section (struct
- partial_symbol *,
- struct objfile *);
-
static struct symtab *lookup_symtab_1 (char *);
-static void cplusplus_hint (char *);
+static struct symbol *lookup_symbol_aux (const char *name, const
+ struct block *block, const
+ namespace_enum namespace, int
+ *is_a_field_of_this, struct
+ symtab **symtab);
+
static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr);
const struct block *block_found;
-char no_symtab_msg[] = "No symbol table is loaded. Use the \"file\" command.";
-
/* While the C++ support is still in flux, issue a possibly helpful hint on
using the new command completion feature on single quoted demangled C++
symbols. Remove when loose ends are cleaned up. FIXME -fnf */
static void
-cplusplus_hint (name)
- char *name;
+cplusplus_hint (char *name)
{
while (*name == '\'')
name++;
in the symtab filename will also work. */
static struct symtab *
-lookup_symtab_1 (name)
- char *name;
+lookup_symtab_1 (char *name)
{
register struct symtab *s;
register struct partial_symtab *ps;
of variations if the first lookup doesn't work. */
struct symtab *
-lookup_symtab (name)
- char *name;
+lookup_symtab (char *name)
{
register struct symtab *s;
#if 0
in the psymtab filename will also work. */
struct partial_symtab *
-lookup_partial_symtab (name)
- char *name;
+lookup_partial_symtab (char *name)
{
register struct partial_symtab *pst;
register struct objfile *objfile;
specified by SIGNATURE_ID. Note that this function is g++ specific. */
char *
-gdb_mangle_name (type, method_id, signature_id)
- struct type *type;
- int method_id, signature_id;
+gdb_mangle_name (struct type *type, int method_id, int signature_id)
{
int mangled_name_len;
char *mangled_name;
int is_full_physname_constructor;
int is_constructor;
- int is_destructor = DESTRUCTOR_PREFIX_P (physname);
+ int is_destructor = is_destructor_name (physname);
/* Need a new type prefix. */
char *const_prefix = method->is_const ? "C" : "";
char *volatile_prefix = method->is_volatile ? "V" : "";
char buf[20];
int len = (newname == NULL ? 0 : strlen (newname));
- is_full_physname_constructor =
- ((physname[0] == '_' && physname[1] == '_' &&
- (isdigit (physname[2]) || physname[2] == 'Q' || physname[2] == 't'))
- || (strncmp (physname, "__ct", 4) == 0));
+ if (is_operator_name (field_name))
+ return xstrdup (physname);
+
+ is_full_physname_constructor = is_constructor_name (physname);
is_constructor =
is_full_physname_constructor || (newname && STREQ (field_name, newname));
sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len);
}
mangled_name_len = ((is_constructor ? 0 : strlen (field_name))
- + strlen (buf) + len
- + strlen (physname)
- + 1);
-
- /* Only needed for GNU-mangled names. ANSI-mangled names
- work with the normal mechanisms. */
- if (OPNAME_PREFIX_P (field_name))
- {
- const char *opname = cplus_mangle_opname (field_name + 3, 0);
- if (opname == NULL)
- error ("No mangling for \"%s\"", field_name);
- mangled_name_len += strlen (opname);
- mangled_name = (char *) xmalloc (mangled_name_len);
+ + strlen (buf) + len + strlen (physname) + 1);
- strncpy (mangled_name, field_name, 3);
- mangled_name[3] = '\0';
- strcat (mangled_name, opname);
- }
- else
{
mangled_name = (char *) xmalloc (mangled_name_len);
if (is_constructor)
/* Find which partial symtab on contains PC and SECTION. Return 0 if none. */
struct partial_symtab *
-find_pc_sect_psymtab (pc, section)
- CORE_ADDR pc;
- asection *section;
+find_pc_sect_psymtab (CORE_ADDR pc, asection *section)
{
register struct partial_symtab *pst;
register struct objfile *objfile;
Backward compatibility, no section */
struct partial_symtab *
-find_pc_psymtab (pc)
- CORE_ADDR pc;
+find_pc_psymtab (CORE_ADDR pc)
{
return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc));
}
Return 0 if none. Check all psymtabs if PSYMTAB is 0. */
struct partial_symbol *
-find_pc_sect_psymbol (psymtab, pc, section)
- struct partial_symtab *psymtab;
- CORE_ADDR pc;
- asection *section;
+find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc,
+ asection *section)
{
struct partial_symbol *best = NULL, *p, **pp;
CORE_ADDR best_pc;
Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */
struct partial_symbol *
-find_pc_psymbol (psymtab, pc)
- struct partial_symtab *psymtab;
- CORE_ADDR pc;
+find_pc_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc)
{
return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc));
}
out of the minimal symbols and stash that in the debug symbol. */
static void
-fixup_section (ginfo, objfile)
- struct general_symbol_info *ginfo;
- struct objfile *objfile;
+fixup_section (struct general_symbol_info *ginfo, struct objfile *objfile)
{
struct minimal_symbol *msym;
msym = lookup_minimal_symbol (ginfo->name, NULL, objfile);
if (msym)
- ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
+ {
+ ginfo->bfd_section = SYMBOL_BFD_SECTION (msym);
+ ginfo->section = SYMBOL_SECTION (msym);
+ }
}
struct symbol *
-fixup_symbol_section (sym, objfile)
- struct symbol *sym;
- struct objfile *objfile;
+fixup_symbol_section (struct symbol *sym, struct objfile *objfile)
{
if (!sym)
return NULL;
return sym;
}
-static struct partial_symbol *
-fixup_psymbol_section (psym, objfile)
- struct partial_symbol *psym;
- struct objfile *objfile;
+struct partial_symbol *
+fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile)
{
if (!psym)
return NULL;
can probably assume it will never hit the C++ code). */
struct symbol *
-lookup_symbol (name, block, namespace, is_a_field_of_this, symtab)
- const char *name;
- register const struct block *block;
- const namespace_enum namespace;
- int *is_a_field_of_this;
- struct symtab **symtab;
+lookup_symbol (const char *name, const struct block *block,
+ const namespace_enum namespace, int *is_a_field_of_this,
+ struct symtab **symtab)
+{
+ char *modified_name = NULL;
+ char *modified_name2 = NULL;
+ int needtofreename = 0;
+ struct symbol *returnval;
+
+ if (case_sensitivity == case_sensitive_off)
+ {
+ char *copy;
+ int len, i;
+
+ len = strlen (name);
+ copy = (char *) alloca (len + 1);
+ for (i= 0; i < len; i++)
+ copy[i] = tolower (name[i]);
+ copy[len] = 0;
+ modified_name = copy;
+ }
+ else
+ modified_name = (char *) name;
+
+ /* If we are using C++ language, demangle the name before doing a lookup, so
+ we can always binary search. */
+ if (current_language->la_language == language_cplus)
+ {
+ modified_name2 = cplus_demangle (modified_name, DMGL_ANSI | DMGL_PARAMS);
+ if (modified_name2)
+ {
+ modified_name = modified_name2;
+ needtofreename = 1;
+ }
+ }
+
+ returnval = lookup_symbol_aux (modified_name, block, namespace,
+ is_a_field_of_this, symtab);
+ if (needtofreename)
+ xfree (modified_name2);
+
+ return returnval;
+}
+
+static struct symbol *
+lookup_symbol_aux (const char *name, const struct block *block,
+ const namespace_enum namespace, int *is_a_field_of_this,
+ struct symtab **symtab)
{
register struct symbol *sym;
register struct symtab *s = NULL;
register struct partial_symtab *ps;
- struct blockvector *bv;
+ register struct blockvector *bv;
register struct objfile *objfile = NULL;
register struct block *b;
register struct minimal_symbol *msymbol;
+
/* Search specified block and its superiors. */
while (block != 0)
{
/* This is a mangled variable, look it up by its
mangled name. */
- return lookup_symbol (SYMBOL_NAME (msymbol), block,
- namespace, is_a_field_of_this, symtab);
+ return lookup_symbol_aux (SYMBOL_NAME (msymbol), block,
+ namespace, is_a_field_of_this, symtab);
}
/* There are no debug symbols for this file, or we are looking
for an unmangled variable.
&& MSYMBOL_TYPE (msymbol) != mst_file_text
&& !STREQ (name, SYMBOL_NAME (msymbol)))
{
- return lookup_symbol (SYMBOL_NAME (msymbol), block,
- namespace, is_a_field_of_this, symtab);
+ return lookup_symbol_aux (SYMBOL_NAME (msymbol), block,
+ namespace, is_a_field_of_this, symtab);
}
}
}
symbols if GLOBAL, the static symbols if not */
static struct partial_symbol *
-lookup_partial_symbol (pst, name, global, namespace)
- struct partial_symtab *pst;
- const char *name;
- int global;
- namespace_enum namespace;
+lookup_partial_symbol (struct partial_symtab *pst, const char *name, int global,
+ namespace_enum namespace)
{
struct partial_symbol *temp;
struct partial_symbol **start, **psym;
{
center = bottom + (top - bottom) / 2;
if (!(center < top))
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
if (!do_linear_search
&& (SYMBOL_LANGUAGE (*center) == language_java))
{
do_linear_search = 1;
}
- if (STRCMP (SYMBOL_NAME (*center), name) >= 0)
+ if (strcmp (SYMBOL_SOURCE_NAME (*center), name) >= 0)
{
top = center;
}
}
}
if (!(top == bottom))
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
/* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so
we don't have to force a linear search on C++. Probably holds true
struct type *
-lookup_transparent_type (name)
- const char *name;
+lookup_transparent_type (const char *name)
{
register struct symbol *sym;
register struct symtab *s = NULL;
executables that have no main() ? */
struct partial_symtab *
-find_main_psymtab ()
+find_main_psymtab (void)
{
register struct partial_symtab *pst;
register struct objfile *objfile;
tested for a match. */
struct symbol *
-lookup_block_symbol (block, name, namespace)
- register const struct block *block;
- const char *name;
- const namespace_enum namespace;
+lookup_block_symbol (register const struct block *block, const char *name,
+ const namespace_enum namespace)
{
register int bot, top, inc;
register struct symbol *sym;
{
/* Reset the linear search flag so if the binary search fails, we
won't do the linear search once unless we find some reason to
- do so, such as finding a C++ symbol during the binary search.
- Note that for C++ modules, ALL the symbols in a block should
- end up marked as C++ symbols. */
+ do so */
do_linear_search = 0;
top = BLOCK_NSYMS (block);
}
inc = (inc >> 1) + bot;
sym = BLOCK_SYM (block, inc);
- if (!do_linear_search
- && (SYMBOL_LANGUAGE (sym) == language_cplus
- || SYMBOL_LANGUAGE (sym) == language_java
- ))
+ if (!do_linear_search && (SYMBOL_LANGUAGE (sym) == language_java))
{
do_linear_search = 1;
}
- if (SYMBOL_NAME (sym)[0] < name[0])
+ if (SYMBOL_SOURCE_NAME (sym)[0] < name[0])
{
bot = inc;
}
- else if (SYMBOL_NAME (sym)[0] > name[0])
+ else if (SYMBOL_SOURCE_NAME (sym)[0] > name[0])
{
top = inc;
}
- else if (STRCMP (SYMBOL_NAME (sym), name) < 0)
+ else if (strcmp (SYMBOL_SOURCE_NAME (sym), name) < 0)
{
bot = inc;
}
while (bot < top)
{
sym = BLOCK_SYM (block, bot);
- inc = SYMBOL_NAME (sym)[0] - name[0];
- if (inc == 0)
- {
- inc = STRCMP (SYMBOL_NAME (sym), name);
- }
- if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace)
- {
- return (sym);
- }
- if (inc > 0)
+ if (SYMBOL_NAMESPACE (sym) == namespace &&
+ SYMBOL_MATCHES_NAME (sym, name))
{
- break;
+ return sym;
}
bot++;
}
If no alias is active, then return SYM. */
static struct symbol *
-find_active_alias (sym, addr)
- struct symbol *sym;
- CORE_ADDR addr;
+find_active_alias (struct symbol *sym, CORE_ADDR addr)
{
struct range_list *r;
struct alias_list *aliases;
lexical block, described by a struct block BL. */
struct symbol *
-block_function (bl)
- struct block *bl;
+block_function (struct block *bl)
{
while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
bl = BLOCK_SUPERBLOCK (bl);
psymtabs and read in another symtab if necessary. */
struct symtab *
-find_pc_sect_symtab (pc, section)
- CORE_ADDR pc;
- asection *section;
+find_pc_sect_symtab (CORE_ADDR pc, asection *section)
{
register struct block *b;
struct blockvector *bv;
/* Might want to error() here (in case symtab is corrupt and
will cause a core dump), but maybe we can successfully
continue, so let's not. */
- /* FIXME-32x64: assumes pc fits in a long */
warning ("\
-(Internal error: pc 0x%lx in read in psymtab, but not in symtab.)\n",
- (unsigned long) pc);
+(Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n",
+ paddr_nz (pc));
s = PSYMTAB_TO_SYMTAB (ps);
}
return (s);
read in another symtab if necessary. Backward compatibility, no section */
struct symtab *
-find_pc_symtab (pc)
- CORE_ADDR pc;
+find_pc_symtab (CORE_ADDR pc)
{
return find_pc_sect_symtab (pc, find_pc_mapped_section (pc));
}
line *0x2345" cause psymtabs to be converted to symtabs). */
struct symbol *
-find_addr_symbol (addr, symtabp, symaddrp)
- CORE_ADDR addr;
- struct symtab **symtabp;
- CORE_ADDR *symaddrp;
+find_addr_symbol (CORE_ADDR addr, struct symtab **symtabp, CORE_ADDR *symaddrp)
{
struct symtab *symtab, *best_symtab;
struct objfile *objfile;
}
#endif /* 0 */
-/* Find the source file and line number for a given PC value and section.
+/* Find the source file and line number for a given PC value and SECTION.
Return a structure containing a symtab pointer, a line number,
and a pc range for the entire source line.
The value's .pc field is NOT the specified pc.
/* If it's worth the effort, we could be using a binary search. */
struct symtab_and_line
-find_pc_sect_line (pc, section, notcurrent)
- CORE_ADDR pc;
- struct sec *section;
- int notcurrent;
+find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent)
{
struct symtab *s;
register struct linetable *l;
{
best = prev;
best_symtab = s;
- /* If another line is in the linetable, and its PC is closer
- than the best_end we currently have, take it as best_end. */
- if (i < len && (best_end == 0 || best_end > item->pc))
- best_end = item->pc;
+
+ /* Discard BEST_END if it's before the PC of the current BEST. */
+ if (best_end <= best->pc)
+ best_end = 0;
}
+
+ /* If another line (denoted by ITEM) is in the linetable and its
+ PC is after BEST's PC, but before the current BEST_END, then
+ use ITEM's PC as the new best_end. */
+ if (best && i < len && item->pc > best->pc
+ && (best_end == 0 || best_end > item->pc))
+ best_end = item->pc;
}
if (!best_symtab)
/* Backward compatibility (no section) */
struct symtab_and_line
-find_pc_line (pc, notcurrent)
- CORE_ADDR pc;
- int notcurrent;
+find_pc_line (CORE_ADDR pc, int notcurrent)
{
asection *section;
return find_pc_sect_line (pc, section, notcurrent);
}
\f
-
-static struct symtab *find_line_symtab (struct symtab *, int, int *, int *);
-
/* Find line number LINE in any symtab whose name is the same as
SYMTAB.
If not found, return NULL. */
-static struct symtab *
-find_line_symtab (symtab, line, index, exact_match)
- struct symtab *symtab;
- int line;
- int *index;
- int *exact_match;
+struct symtab *
+find_line_symtab (struct symtab *symtab, int line, int *index, int *exact_match)
{
int exact;
The source file is specified with a struct symtab. */
int
-find_line_pc (symtab, line, pc)
- struct symtab *symtab;
- int line;
- CORE_ADDR *pc;
+find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc)
{
struct linetable *l;
int ind;
Returns 0 if could not find the specified line. */
int
-find_line_pc_range (sal, startptr, endptr)
- struct symtab_and_line sal;
- CORE_ADDR *startptr, *endptr;
+find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr,
+ CORE_ADDR *endptr)
{
CORE_ADDR startaddr;
struct symtab_and_line found_sal;
Set *EXACT_MATCH nonzero if the value returned is an exact match. */
static int
-find_line_common (l, lineno, exact_match)
- register struct linetable *l;
- register int lineno;
- int *exact_match;
+find_line_common (register struct linetable *l, register int lineno,
+ int *exact_match)
{
register int i;
register int len;
}
int
-find_pc_line_pc_range (pc, startptr, endptr)
- CORE_ADDR pc;
- CORE_ADDR *startptr, *endptr;
+find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr)
{
struct symtab_and_line sal;
sal = find_pc_line (pc, 0);
If the argument FUNFIRSTLINE is nonzero, we want the first line
of real code inside the function. */
-static struct symtab_and_line
-find_function_start_sal (struct symbol *sym, int);
-
-static struct symtab_and_line
-find_function_start_sal (sym, funfirstline)
- struct symbol *sym;
- int funfirstline;
+struct symtab_and_line
+find_function_start_sal (struct symbol *sym, int funfirstline)
{
CORE_ADDR pc;
struct symtab_and_line sal;
return sal;
}
-\f
+
/* If P is of the form "operator[ \t]+..." where `...' is
some legitimate operator text, return a pointer to the
beginning of the substring of the operator text.
Otherwise, return "". */
char *
-operator_chars (p, end)
- char *p;
- char **end;
+operator_chars (char *p, char **end)
{
*end = "";
if (strncmp (p, "operator", 8))
*end = "";
return *end;
}
-
-/* Return the number of methods described for TYPE, including the
- methods from types it derives from. This can't be done in the symbol
- reader because the type of the baseclass might still be stubbed
- when the definition of the derived class is parsed. */
-
-static int total_number_of_methods (struct type *type);
-
-static int
-total_number_of_methods (type)
- struct type *type;
-{
- int n;
- int count;
-
- CHECK_TYPEDEF (type);
- if (TYPE_CPLUS_SPECIFIC (type) == NULL)
- return 0;
- count = TYPE_NFN_FIELDS_TOTAL (type);
-
- for (n = 0; n < TYPE_N_BASECLASSES (type); n++)
- count += total_number_of_methods (TYPE_BASECLASS (type, n));
-
- return count;
-}
-
-/* Recursive helper function for decode_line_1.
- Look for methods named NAME in type T.
- Return number of matches.
- Put matches in SYM_ARR, which should have been allocated with
- a size of total_number_of_methods (T) * sizeof (struct symbol *).
- Note that this function is g++ specific. */
-
-static int
-find_methods (t, name, sym_arr)
- struct type *t;
- char *name;
- struct symbol **sym_arr;
-{
- int i1 = 0;
- int ibase;
- struct symbol *sym_class;
- char *class_name = type_name_no_tag (t);
-
- /* Ignore this class if it doesn't have a name. This is ugly, but
- unless we figure out how to get the physname without the name of
- the class, then the loop can't do any good. */
- if (class_name
- && (sym_class = lookup_symbol (class_name,
- (struct block *) NULL,
- STRUCT_NAMESPACE,
- (int *) NULL,
- (struct symtab **) NULL)))
- {
- int method_counter;
-
- /* FIXME: Shouldn't this just be CHECK_TYPEDEF (t)? */
- t = SYMBOL_TYPE (sym_class);
-
- /* Loop over each method name. At this level, all overloads of a name
- are counted as a single name. There is an inner loop which loops over
- each overload. */
-
- for (method_counter = TYPE_NFN_FIELDS (t) - 1;
- method_counter >= 0;
- --method_counter)
- {
- int field_counter;
- char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
- char dem_opname[64];
-
- if (strncmp (method_name, "__", 2) == 0 ||
- strncmp (method_name, "op", 2) == 0 ||
- strncmp (method_name, "type", 4) == 0)
- {
- if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
- method_name = dem_opname;
- else if (cplus_demangle_opname (method_name, dem_opname, 0))
- method_name = dem_opname;
- }
-
- if (STREQ (name, method_name))
- /* Find all the overloaded methods with that name. */
- for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
- field_counter >= 0;
- --field_counter)
- {
- struct fn_field *f;
- char *phys_name;
-
- f = TYPE_FN_FIELDLIST1 (t, method_counter);
-
- if (TYPE_FN_FIELD_STUB (f, field_counter))
- {
- char *tmp_name;
-
- tmp_name = gdb_mangle_name (t,
- method_counter,
- field_counter);
- phys_name = alloca (strlen (tmp_name) + 1);
- strcpy (phys_name, tmp_name);
- free (tmp_name);
- }
- else
- phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
-
- /* Destructor is handled by caller, dont add it to the list */
- if (DESTRUCTOR_PREFIX_P (phys_name))
- continue;
-
- sym_arr[i1] = lookup_symbol (phys_name,
- NULL, VAR_NAMESPACE,
- (int *) NULL,
- (struct symtab **) NULL);
- if (sym_arr[i1])
- i1++;
- else
- {
- /* This error message gets printed, but the method
- still seems to be found
- fputs_filtered("(Cannot find method ", gdb_stdout);
- fprintf_symbol_filtered (gdb_stdout, phys_name,
- language_cplus,
- DMGL_PARAMS | DMGL_ANSI);
- fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
- */
- }
- }
- }
- }
-
- /* Only search baseclasses if there is no match yet, since names in
- derived classes override those in baseclasses.
-
- FIXME: The above is not true; it is only true of member functions
- if they have the same number of arguments (??? - section 13.1 of the
- ARM says the function members are not in the same scope but doesn't
- really spell out the rules in a way I understand. In any case, if
- the number of arguments differ this is a case in which we can overload
- rather than hiding without any problem, and gcc 2.4.5 does overload
- rather than hiding in this case). */
-
- if (i1 == 0)
- for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
- i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1);
-
- return i1;
-}
-
-/* Helper function for decode_line_1.
- Build a canonical line spec in CANONICAL if it is non-NULL and if
- the SAL has a symtab.
- If SYMNAME is non-NULL the canonical line spec is `filename:symname'.
- If SYMNAME is NULL the line number from SAL is used and the canonical
- line spec is `filename:linenum'. */
-
-static void
-build_canonical_line_spec (sal, symname, canonical)
- struct symtab_and_line *sal;
- char *symname;
- char ***canonical;
-{
- char **canonical_arr;
- char *canonical_name;
- char *filename;
- struct symtab *s = sal->symtab;
-
- if (s == (struct symtab *) NULL
- || s->filename == (char *) NULL
- || canonical == (char ***) NULL)
- return;
-
- canonical_arr = (char **) xmalloc (sizeof (char *));
- *canonical = canonical_arr;
-
- filename = s->filename;
- if (symname != NULL)
- {
- canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2);
- sprintf (canonical_name, "%s:%s", filename, symname);
- }
- else
- {
- canonical_name = xmalloc (strlen (filename) + 30);
- sprintf (canonical_name, "%s:%d", filename, sal->line);
- }
- canonical_arr[0] = canonical_name;
-}
-
-
-
-/* Find an instance of the character C in the string S that is outside
- of all parenthesis pairs, single-quoted strings, and double-quoted
- strings. */
-static char *
-find_toplevel_char (char *s, char c)
-{
- int quoted = 0; /* zero if we're not in quotes;
- '"' if we're in a double-quoted string;
- '\'' if we're in a single-quoted string. */
- int depth = 0; /* number of unclosed parens we've seen */
- char *scan;
-
- for (scan = s; *scan; scan++)
- {
- if (quoted)
- {
- if (*scan == quoted)
- quoted = 0;
- else if (*scan == '\\' && *(scan + 1))
- scan++;
- }
- else if (*scan == c && ! quoted && depth == 0)
- return scan;
- else if (*scan == '"' || *scan == '\'')
- quoted = *scan;
- else if (*scan == '(')
- depth++;
- else if (*scan == ')' && depth > 0)
- depth--;
- }
-
- return 0;
-}
-
-
-/* Parse a string that specifies a line number.
- Pass the address of a char * variable; that variable will be
- advanced over the characters actually parsed.
-
- The string can be:
-
- LINENUM -- that line number in current file. PC returned is 0.
- FILE:LINENUM -- that line in that file. PC returned is 0.
- FUNCTION -- line number of openbrace of that function.
- PC returned is the start of the function.
- VARIABLE -- line number of definition of that variable.
- PC returned is 0.
- FILE:FUNCTION -- likewise, but prefer functions in that file.
- *EXPR -- line in which address EXPR appears.
-
- This may all be followed by an "if EXPR", which we ignore.
-
- FUNCTION may be an undebuggable function found in minimal symbol table.
-
- If the argument FUNFIRSTLINE is nonzero, we want the first line
- of real code inside a function when a function is specified, and it is
- not OK to specify a variable or type to get its line number.
-
- DEFAULT_SYMTAB specifies the file to use if none is specified.
- It defaults to current_source_symtab.
- DEFAULT_LINE specifies the line number to use for relative
- line numbers (that start with signs). Defaults to current_source_line.
- If CANONICAL is non-NULL, store an array of strings containing the canonical
- line specs there if necessary. Currently overloaded member functions and
- line numbers or static functions without a filename yield a canonical
- line spec. The array and the line spec strings are allocated on the heap,
- it is the callers responsibility to free them.
-
- Note that it is possible to return zero for the symtab
- if no file is validly specified. Callers must check that.
- Also, the line number returned may be invalid. */
-
-/* We allow single quotes in various places. This is a hideous
- kludge, which exists because the completer can't yet deal with the
- lack of single quotes. FIXME: write a linespec_completer which we
- can use as appropriate instead of make_symbol_completion_list. */
-
-struct symtabs_and_lines
-decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
- char **argptr;
- int funfirstline;
- struct symtab *default_symtab;
- int default_line;
- char ***canonical;
-{
- struct symtabs_and_lines values;
-#ifdef HPPA_COMPILER_BUG
- /* FIXME: The native HP 9000/700 compiler has a bug which appears
- when optimizing this file with target i960-vxworks. I haven't
- been able to construct a simple test case. The problem is that
- in the second call to SKIP_PROLOGUE below, the compiler somehow
- does not realize that the statement val = find_pc_line (...) will
- change the values of the fields of val. It extracts the elements
- into registers at the top of the block, and does not update the
- registers after the call to find_pc_line. You can check this by
- inserting a printf at the end of find_pc_line to show what values
- it is returning for val.pc and val.end and another printf after
- the call to see what values the function actually got (remember,
- this is compiling with cc -O, with this patch removed). You can
- also examine the assembly listing: search for the second call to
- skip_prologue; the LDO statement before the next call to
- find_pc_line loads the address of the structure which
- find_pc_line will return; if there is a LDW just before the LDO,
- which fetches an element of the structure, then the compiler
- still has the bug.
-
- Setting val to volatile avoids the problem. We must undef
- volatile, because the HPPA native compiler does not define
- __STDC__, although it does understand volatile, and so volatile
- will have been defined away in defs.h. */
-#undef volatile
- volatile struct symtab_and_line val;
-#define volatile /*nothing */
-#else
- struct symtab_and_line val;
-#endif
- register char *p, *p1;
- char *q, *pp, *ii, *p2;
-#if 0
- char *q1;
-#endif
- register struct symtab *s;
-
- register struct symbol *sym;
- /* The symtab that SYM was found in. */
- struct symtab *sym_symtab;
-
- register CORE_ADDR pc;
- register struct minimal_symbol *msymbol;
- char *copy;
- struct symbol *sym_class;
- int i1;
- int is_quoted;
- int is_quote_enclosed;
- int has_parens;
- int has_if = 0;
- int has_comma = 0;
- struct symbol **sym_arr;
- struct type *t;
- char *saved_arg = *argptr;
- extern char *gdb_completer_quote_characters;
-
- INIT_SAL (&val); /* initialize to zeroes */
-
- /* Defaults have defaults. */
-
- if (default_symtab == 0)
- {
- default_symtab = current_source_symtab;
- default_line = current_source_line;
- }
-
- /* See if arg is *PC */
-
- if (**argptr == '*')
- {
- (*argptr)++;
- pc = parse_and_eval_address_1 (argptr);
-
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
-
- values.nelts = 1;
- values.sals[0] = find_pc_line (pc, 0);
- values.sals[0].pc = pc;
- values.sals[0].section = find_pc_overlay (pc);
-
- return values;
- }
-
- /* 'has_if' is for the syntax:
- * (gdb) break foo if (a==b)
- */
- if ((ii = strstr (*argptr, " if ")) != NULL ||
- (ii = strstr (*argptr, "\tif ")) != NULL ||
- (ii = strstr (*argptr, " if\t")) != NULL ||
- (ii = strstr (*argptr, "\tif\t")) != NULL ||
- (ii = strstr (*argptr, " if(")) != NULL ||
- (ii = strstr (*argptr, "\tif( ")) != NULL)
- has_if = 1;
- /* Temporarily zap out "if (condition)" to not
- * confuse the parenthesis-checking code below.
- * This is undone below. Do not change ii!!
- */
- if (has_if)
- {
- *ii = '\0';
- }
-
- /* Set various flags.
- * 'has_parens' is important for overload checking, where
- * we allow things like:
- * (gdb) break c::f(int)
- */
-
- /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
-
- is_quoted = (**argptr
- && strchr (gdb_completer_quote_characters, **argptr) != NULL);
-
- has_parens = ((pp = strchr (*argptr, '(')) != NULL
- && (pp = strrchr (pp, ')')) != NULL);
-
- /* Now that we're safely past the has_parens check,
- * put back " if (condition)" so outer layers can see it
- */
- if (has_if)
- *ii = ' ';
-
- /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM
- and we must isolate the first half. Outer layers will call again later
- for the second half.
-
- Don't count commas that appear in argument lists of overloaded
- functions, or in quoted strings. It's stupid to go to this much
- trouble when the rest of the function is such an obvious roach hotel. */
- ii = find_toplevel_char (*argptr, ',');
- has_comma = (ii != 0);
-
- /* Temporarily zap out second half to not
- * confuse the code below.
- * This is undone below. Do not change ii!!
- */
- if (has_comma)
- {
- *ii = '\0';
- }
-
- /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
- /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
- /* Look for ':', but ignore inside of <> */
-
- s = NULL;
- p = *argptr;
- if (p[0] == '"')
- {
- is_quote_enclosed = 1;
- p++;
- }
- else
- is_quote_enclosed = 0;
- for (; *p; p++)
- {
- if (p[0] == '<')
- {
- char *temp_end = find_template_name_end (p);
- if (!temp_end)
- error ("malformed template specification in command");
- p = temp_end;
- }
- /* Check for the end of the first half of the linespec. End of line,
- a tab, a double colon or the last single colon, or a space. But
- if enclosed in double quotes we do not break on enclosed spaces */
- if (!*p
- || p[0] == '\t'
- || ((p[0] == ':')
- && ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
- || ((p[0] == ' ') && !is_quote_enclosed))
- break;
- if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
- {
- /* Find the *last* '.', since the others are package qualifiers. */
- for (p1 = p; *p1; p1++)
- {
- if (*p1 == '.')
- p = p1;
- }
- break;
- }
- }
- while (p[0] == ' ' || p[0] == '\t')
- p++;
-
- /* if the closing double quote was left at the end, remove it */
- if (is_quote_enclosed)
- {
- char *closing_quote = strchr (p, '"');
- if (closing_quote && closing_quote[1] == '\0')
- *closing_quote = '\0';
- }
-
- /* Now that we've safely parsed the first half,
- * put back ',' so outer layers can see it
- */
- if (has_comma)
- *ii = ',';
-
- if ((p[0] == ':' || p[0] == '.') && !has_parens)
- {
- /* C++ */
- /* ... or Java */
- if (is_quoted)
- *argptr = *argptr + 1;
- if (p[0] == '.' || p[1] == ':')
- {
- char *saved_arg2 = *argptr;
- char *temp_end;
- /* First check for "global" namespace specification,
- of the form "::foo". If found, skip over the colons
- and jump to normal symbol processing */
- if ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))
- saved_arg2 += 2;
-
- /* We have what looks like a class or namespace
- scope specification (A::B), possibly with many
- levels of namespaces or classes (A::B::C::D).
-
- Some versions of the HP ANSI C++ compiler (as also possibly
- other compilers) generate class/function/member names with
- embedded double-colons if they are inside namespaces. To
- handle this, we loop a few times, considering larger and
- larger prefixes of the string as though they were single
- symbols. So, if the initially supplied string is
- A::B::C::D::foo, we have to look up "A", then "A::B",
- then "A::B::C", then "A::B::C::D", and finally
- "A::B::C::D::foo" as single, monolithic symbols, because
- A, B, C or D may be namespaces.
-
- Note that namespaces can nest only inside other
- namespaces, and not inside classes. So we need only
- consider *prefixes* of the string; there is no need to look up
- "B::C" separately as a symbol in the previous example. */
-
- p2 = p; /* save for restart */
- while (1)
- {
- /* Extract the class name. */
- p1 = p;
- while (p != *argptr && p[-1] == ' ')
- --p;
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = 0;
-
- /* Discard the class name from the arg. */
- p = p1 + (p1[0] == ':' ? 2 : 1);
- while (*p == ' ' || *p == '\t')
- p++;
- *argptr = p;
-
- sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0,
- (struct symtab **) NULL);
-
- if (sym_class &&
- (t = check_typedef (SYMBOL_TYPE (sym_class)),
- (TYPE_CODE (t) == TYPE_CODE_STRUCT
- || TYPE_CODE (t) == TYPE_CODE_UNION)))
- {
- /* Arg token is not digits => try it as a function name
- Find the next token(everything up to end or next blank). */
- if (**argptr
- && strchr (gdb_completer_quote_characters, **argptr) != NULL)
- {
- p = skip_quoted (*argptr);
- *argptr = *argptr + 1;
- }
- else
- {
- p = *argptr;
- while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':')
- p++;
- }
-/*
- q = operator_chars (*argptr, &q1);
- if (q1 - q)
- {
- char *opname;
- char *tmp = alloca (q1 - q + 1);
- memcpy (tmp, q, q1 - q);
- tmp[q1 - q] = '\0';
- opname = cplus_mangle_opname (tmp, DMGL_ANSI);
- if (opname == NULL)
- {
- error_begin ();
- printf_filtered ("no mangling for \"%s\"\n", tmp);
- cplusplus_hint (saved_arg);
- return_to_top_level (RETURN_ERROR);
- }
- copy = (char*) alloca (3 + strlen(opname));
- sprintf (copy, "__%s", opname);
- p = q1;
- }
- else
- */
- {
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = '\0';
- if (p != *argptr
- && copy[p - *argptr - 1]
- && strchr (gdb_completer_quote_characters,
- copy[p - *argptr - 1]) != NULL)
- copy[p - *argptr - 1] = '\0';
- }
-
- /* no line number may be specified */
- while (*p == ' ' || *p == '\t')
- p++;
- *argptr = p;
-
- sym = 0;
- i1 = 0; /* counter for the symbol array */
- sym_arr = (struct symbol **) alloca (total_number_of_methods (t)
- * sizeof (struct symbol *));
-
- if (destructor_name_p (copy, t))
- {
- /* Destructors are a special case. */
- int m_index, f_index;
-
- if (get_destructor_fn_field (t, &m_index, &f_index))
- {
- struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);
-
- sym_arr[i1] =
- lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
- NULL, VAR_NAMESPACE, (int *) NULL,
- (struct symtab **) NULL);
- if (sym_arr[i1])
- i1++;
- }
- }
- else
- i1 = find_methods (t, copy, sym_arr);
- if (i1 == 1)
- {
- /* There is exactly one field with that name. */
- sym = sym_arr[0];
-
- if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
- {
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.nelts = 1;
- values.sals[0] = find_function_start_sal (sym,
- funfirstline);
- }
- else
- {
- values.nelts = 0;
- }
- return values;
- }
- if (i1 > 0)
- {
- /* There is more than one field with that name
- (overloaded). Ask the user which one to use. */
- return decode_line_2 (sym_arr, i1, funfirstline, canonical);
- }
- else
- {
- char *tmp;
-
- if (OPNAME_PREFIX_P (copy))
- {
- tmp = (char *) alloca (strlen (copy + 3) + 9);
- strcpy (tmp, "operator ");
- strcat (tmp, copy + 3);
- }
- else
- tmp = copy;
- error_begin ();
- if (tmp[0] == '~')
- printf_filtered
- ("the class `%s' does not have destructor defined\n",
- SYMBOL_SOURCE_NAME (sym_class));
- else
- printf_filtered
- ("the class %s does not have any method named %s\n",
- SYMBOL_SOURCE_NAME (sym_class), tmp);
- cplusplus_hint (saved_arg);
- return_to_top_level (RETURN_ERROR);
- }
- }
-
- /* Move pointer up to next possible class/namespace token */
- p = p2 + 1; /* restart with old value +1 */
- /* Move pointer ahead to next double-colon */
- while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\''))
- {
- if (p[0] == '<')
- {
- temp_end = find_template_name_end (p);
- if (!temp_end)
- error ("malformed template specification in command");
- p = temp_end;
- }
- else if ((p[0] == ':') && (p[1] == ':'))
- break; /* found double-colon */
- else
- p++;
- }
-
- if (*p != ':')
- break; /* out of the while (1) */
-
- p2 = p; /* save restart for next time around */
- *argptr = saved_arg2; /* restore argptr */
- } /* while (1) */
-
- /* Last chance attempt -- check entire name as a symbol */
- /* Use "copy" in preparation for jumping out of this block,
- to be consistent with usage following the jump target */
- copy = (char *) alloca (p - saved_arg2 + 1);
- memcpy (copy, saved_arg2, p - saved_arg2);
- /* Note: if is_quoted should be true, we snuff out quote here anyway */
- copy[p - saved_arg2] = '\000';
- /* Set argptr to skip over the name */
- *argptr = (*p == '\'') ? p + 1 : p;
- /* Look up entire name */
- sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
- s = (struct symtab *) 0;
- /* Prepare to jump: restore the " if (condition)" so outer layers see it */
- /* Symbol was found --> jump to normal symbol processing.
- Code following "symbol_found" expects "copy" to have the
- symbol name, "sym" to have the symbol pointer, "s" to be
- a specified file's symtab, and sym_symtab to be the symbol's
- symtab. */
- /* By jumping there we avoid falling through the FILE:LINE and
- FILE:FUNC processing stuff below */
- if (sym)
- goto symbol_found;
-
- /* Couldn't find any interpretation as classes/namespaces, so give up */
- error_begin ();
- /* The quotes are important if copy is empty. */
- printf_filtered
- ("Can't find member of namespace, class, struct, or union named \"%s\"\n", copy);
- cplusplus_hint (saved_arg);
- return_to_top_level (RETURN_ERROR);
- }
- /* end of C++ */
-
-
- /* Extract the file name. */
- p1 = p;
- while (p != *argptr && p[-1] == ' ')
- --p;
- if ((*p == '"') && is_quote_enclosed)
- --p;
- copy = (char *) alloca (p - *argptr + 1);
- if ((**argptr == '"') && is_quote_enclosed)
- {
- memcpy (copy, *argptr + 1, p - *argptr - 1);
- /* It may have the ending quote right after the file name */
- if (copy[p - *argptr - 2] == '"')
- copy[p - *argptr - 2] = 0;
- else
- copy[p - *argptr - 1] = 0;
- }
- else
- {
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = 0;
- }
-
- /* Find that file's data. */
- s = lookup_symtab (copy);
- if (s == 0)
- {
- if (!have_full_symbols () && !have_partial_symbols ())
- error (no_symtab_msg);
- error ("No source file named %s.", copy);
- }
-
- /* Discard the file name from the arg. */
- p = p1 + 1;
- while (*p == ' ' || *p == '\t')
- p++;
- *argptr = p;
- }
-#if 0
- /* No one really seems to know why this was added. It certainly
- breaks the command line, though, whenever the passed
- name is of the form ClassName::Method. This bit of code
- singles out the class name, and if funfirstline is set (for
- example, you are setting a breakpoint at this function),
- you get an error. This did not occur with earlier
- verions, so I am ifdef'ing this out. 3/29/99 */
- else
- {
- /* Check if what we have till now is a symbol name */
-
- /* We may be looking at a template instantiation such
- as "foo<int>". Check here whether we know about it,
- instead of falling through to the code below which
- handles ordinary function names, because that code
- doesn't like seeing '<' and '>' in a name -- the
- skip_quoted call doesn't go past them. So see if we
- can figure it out right now. */
-
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = '\000';
- sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
- if (sym)
- {
- /* Yes, we have a symbol; jump to symbol processing */
- /* Code after symbol_found expects S, SYM_SYMTAB, SYM,
- and COPY to be set correctly */
- *argptr = (*p == '\'') ? p + 1 : p;
- s = (struct symtab *) 0;
- goto symbol_found;
- }
- /* Otherwise fall out from here and go to file/line spec
- processing, etc. */
- }
-#endif
-
- /* S is specified file's symtab, or 0 if no file specified.
- arg no longer contains the file name. */
-
- /* Check whether arg is all digits (and sign) */
-
- q = *argptr;
- if (*q == '-' || *q == '+')
- q++;
- while (*q >= '0' && *q <= '9')
- q++;
-
- if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ','))
- {
- /* We found a token consisting of all digits -- at least one digit. */
- enum sign
- {
- none, plus, minus
- }
- sign = none;
-
- /* We might need a canonical line spec if no file was specified. */
- int need_canonical = (s == 0) ? 1 : 0;
-
- /* This is where we need to make sure that we have good defaults.
- We must guarantee that this section of code is never executed
- when we are called with just a function name, since
- select_source_symtab calls us with such an argument */
-
- if (s == 0 && default_symtab == 0)
- {
- select_source_symtab (0);
- default_symtab = current_source_symtab;
- default_line = current_source_line;
- }
-
- if (**argptr == '+')
- sign = plus, (*argptr)++;
- else if (**argptr == '-')
- sign = minus, (*argptr)++;
- val.line = atoi (*argptr);
- switch (sign)
- {
- case plus:
- if (q == *argptr)
- val.line = 5;
- if (s == 0)
- val.line = default_line + val.line;
- break;
- case minus:
- if (q == *argptr)
- val.line = 15;
- if (s == 0)
- val.line = default_line - val.line;
- else
- val.line = 1;
- break;
- case none:
- break; /* No need to adjust val.line. */
- }
-
- while (*q == ' ' || *q == '\t')
- q++;
- *argptr = q;
- if (s == 0)
- s = default_symtab;
-
- /* It is possible that this source file has more than one symtab,
- and that the new line number specification has moved us from the
- default (in s) to a new one. */
- val.symtab = find_line_symtab (s, val.line, NULL, NULL);
- if (val.symtab == 0)
- val.symtab = s;
-
- val.pc = 0;
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.sals[0] = val;
- values.nelts = 1;
- if (need_canonical)
- build_canonical_line_spec (values.sals, NULL, canonical);
- return values;
- }
-
- /* Arg token is not digits => try it as a variable name
- Find the next token (everything up to end or next whitespace). */
-
- if (**argptr == '$') /* May be a convenience variable */
- p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); /* One or two $ chars possible */
- else if (is_quoted)
- {
- p = skip_quoted (*argptr);
- if (p[-1] != '\'')
- error ("Unmatched single quote.");
- }
- else if (has_parens)
- {
- p = pp + 1;
- }
- else
- {
- p = skip_quoted (*argptr);
- }
-
- if (is_quote_enclosed && **argptr == '"')
- (*argptr)++;
-
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = '\0';
- if (p != *argptr
- && copy[0]
- && copy[0] == copy[p - *argptr - 1]
- && strchr (gdb_completer_quote_characters, copy[0]) != NULL)
- {
- copy[p - *argptr - 1] = '\0';
- copy++;
- }
- while (*p == ' ' || *p == '\t')
- p++;
- *argptr = p;
-
- /* If it starts with $: may be a legitimate variable or routine name
- (e.g. HP-UX millicode routines such as $$dyncall), or it may
- be history value, or it may be a convenience variable */
-
- if (*copy == '$')
- {
- value_ptr valx;
- int index = 0;
- int need_canonical = 0;
-
- p = (copy[1] == '$') ? copy + 2 : copy + 1;
- while (*p >= '0' && *p <= '9')
- p++;
- if (!*p) /* reached end of token without hitting non-digit */
- {
- /* We have a value history reference */
- sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
- valx = access_value_history ((copy[1] == '$') ? -index : index);
- if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
- error ("History values used in line specs must have integer values.");
- }
- else
- {
- /* Not all digits -- may be user variable/function or a
- convenience variable */
-
- /* Look up entire name as a symbol first */
- sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
- s = (struct symtab *) 0;
- need_canonical = 1;
- /* Symbol was found --> jump to normal symbol processing.
- Code following "symbol_found" expects "copy" to have the
- symbol name, "sym" to have the symbol pointer, "s" to be
- a specified file's symtab, and sym_symtab to be the symbol's
- symtab. */
- if (sym)
- goto symbol_found;
-
- /* If symbol was not found, look in minimal symbol tables */
- msymbol = lookup_minimal_symbol (copy, 0, 0);
- /* Min symbol was found --> jump to minsym processing. */
- if (msymbol)
- goto minimal_symbol_found;
-
- /* Not a user variable or function -- must be convenience variable */
- need_canonical = (s == 0) ? 1 : 0;
- valx = value_of_internalvar (lookup_internalvar (copy + 1));
- if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
- error ("Convenience variables used in line specs must have integer values.");
- }
-
- /* Either history value or convenience value from above, in valx */
- val.symtab = s ? s : default_symtab;
- val.line = value_as_long (valx);
- val.pc = 0;
-
- values.sals = (struct symtab_and_line *) xmalloc (sizeof val);
- values.sals[0] = val;
- values.nelts = 1;
-
- if (need_canonical)
- build_canonical_line_spec (values.sals, NULL, canonical);
-
- return values;
- }
-
-
- /* Look up that token as a variable.
- If file specified, use that file's per-file block to start with. */
-
- sym = lookup_symbol (copy,
- (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)
- : get_selected_block ()),
- VAR_NAMESPACE, 0, &sym_symtab);
-
-symbol_found: /* We also jump here from inside the C++ class/namespace
- code on finding a symbol of the form "A::B::C" */
-
- if (sym != NULL)
- {
- if (SYMBOL_CLASS (sym) == LOC_BLOCK)
- {
- /* Arg is the name of a function */
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.sals[0] = find_function_start_sal (sym, funfirstline);
- values.nelts = 1;
-
- /* Don't use the SYMBOL_LINE; if used at all it points to
- the line containing the parameters or thereabouts, not
- the first line of code. */
-
- /* We might need a canonical line spec if it is a static
- function. */
- if (s == 0)
- {
- struct blockvector *bv = BLOCKVECTOR (sym_symtab);
- struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
- if (lookup_block_symbol (b, copy, VAR_NAMESPACE) != NULL)
- build_canonical_line_spec (values.sals, copy, canonical);
- }
- return values;
- }
- else
- {
- if (funfirstline)
- error ("\"%s\" is not a function", copy);
- else if (SYMBOL_LINE (sym) != 0)
- {
- /* We know its line number. */
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.nelts = 1;
- memset (&values.sals[0], 0, sizeof (values.sals[0]));
- values.sals[0].symtab = sym_symtab;
- values.sals[0].line = SYMBOL_LINE (sym);
- return values;
- }
- else
- /* This can happen if it is compiled with a compiler which doesn't
- put out line numbers for variables. */
- /* FIXME: Shouldn't we just set .line and .symtab to zero
- and return? For example, "info line foo" could print
- the address. */
- error ("Line number not known for symbol \"%s\"", copy);
- }
- }
-
- msymbol = lookup_minimal_symbol (copy, NULL, NULL);
-
-minimal_symbol_found: /* We also jump here from the case for variables
- that begin with '$' */
-
- if (msymbol != NULL)
- {
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol),
- (struct sec *) 0, 0);
- values.sals[0].section = SYMBOL_BFD_SECTION (msymbol);
- if (funfirstline)
- {
- values.sals[0].pc += FUNCTION_START_OFFSET;
- values.sals[0].pc = SKIP_PROLOGUE (values.sals[0].pc);
- }
- values.nelts = 1;
- return values;
- }
-
- if (!have_full_symbols () &&
- !have_partial_symbols () && !have_minimal_symbols ())
- error (no_symtab_msg);
-
- error ("Function \"%s\" not defined.", copy);
- return values; /* for lint */
-}
-
-struct symtabs_and_lines
-decode_line_spec (string, funfirstline)
- char *string;
- int funfirstline;
-{
- struct symtabs_and_lines sals;
- if (string == 0)
- error ("Empty line specification.");
- sals = decode_line_1 (&string, funfirstline,
- current_source_symtab, current_source_line,
- (char ***) NULL);
- if (*string)
- error ("Junk at end of line specification: %s", string);
- return sals;
-}
-
-/* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
- operate on (ask user if necessary).
- If CANONICAL is non-NULL return a corresponding array of mangled names
- as canonical line specs there. */
-
-static struct symtabs_and_lines
-decode_line_2 (sym_arr, nelts, funfirstline, canonical)
- struct symbol *sym_arr[];
- int nelts;
- int funfirstline;
- char ***canonical;
-{
- struct symtabs_and_lines values, return_values;
- char *args, *arg1;
- int i;
- char *prompt;
- char *symname;
- struct cleanup *old_chain;
- char **canonical_arr = (char **) NULL;
-
- values.sals = (struct symtab_and_line *)
- alloca (nelts * sizeof (struct symtab_and_line));
- return_values.sals = (struct symtab_and_line *)
- xmalloc (nelts * sizeof (struct symtab_and_line));
- old_chain = make_cleanup (free, return_values.sals);
-
- if (canonical)
- {
- canonical_arr = (char **) xmalloc (nelts * sizeof (char *));
- make_cleanup (free, canonical_arr);
- memset (canonical_arr, 0, nelts * sizeof (char *));
- *canonical = canonical_arr;
- }
-
- i = 0;
- printf_unfiltered ("[0] cancel\n[1] all\n");
- while (i < nelts)
- {
- INIT_SAL (&return_values.sals[i]); /* initialize to zeroes */
- INIT_SAL (&values.sals[i]);
- if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
- {
- values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
- printf_unfiltered ("[%d] %s at %s:%d\n",
- (i + 2),
- SYMBOL_SOURCE_NAME (sym_arr[i]),
- values.sals[i].symtab->filename,
- values.sals[i].line);
- }
- else
- printf_unfiltered ("?HERE\n");
- i++;
- }
-
- if ((prompt = getenv ("PS2")) == NULL)
- {
- prompt = "> ";
- }
- args = command_line_input (prompt, 0, "overload-choice");
-
- if (args == 0 || *args == 0)
- error_no_arg ("one or more choice numbers");
-
- i = 0;
- while (*args)
- {
- int num;
-
- arg1 = args;
- while (*arg1 >= '0' && *arg1 <= '9')
- arg1++;
- if (*arg1 && *arg1 != ' ' && *arg1 != '\t')
- error ("Arguments must be choice numbers.");
-
- num = atoi (args);
-
- if (num == 0)
- error ("cancelled");
- else if (num == 1)
- {
- if (canonical_arr)
- {
- for (i = 0; i < nelts; i++)
- {
- if (canonical_arr[i] == NULL)
- {
- symname = SYMBOL_NAME (sym_arr[i]);
- canonical_arr[i] = savestring (symname, strlen (symname));
- }
- }
- }
- memcpy (return_values.sals, values.sals,
- (nelts * sizeof (struct symtab_and_line)));
- return_values.nelts = nelts;
- discard_cleanups (old_chain);
- return return_values;
- }
-
- if (num >= nelts + 2)
- {
- printf_unfiltered ("No choice number %d.\n", num);
- }
- else
- {
- num -= 2;
- if (values.sals[num].pc)
- {
- if (canonical_arr)
- {
- symname = SYMBOL_NAME (sym_arr[num]);
- make_cleanup (free, symname);
- canonical_arr[i] = savestring (symname, strlen (symname));
- }
- return_values.sals[i++] = values.sals[num];
- values.sals[num].pc = 0;
- }
- else
- {
- printf_unfiltered ("duplicate request for %d ignored.\n", num);
- }
- }
-
- args = arg1;
- while (*args == ' ' || *args == '\t')
- args++;
- }
- return_values.nelts = i;
- discard_cleanups (old_chain);
- return return_values;
-}
\f
/* Slave routine for sources_info. Force line breaks at ,'s.
NAME is the name to print and *FIRST is nonzero if this is the first
name printed. Set *FIRST to zero. */
static void
-output_source_filename (name, first)
- char *name;
- int *first;
+output_source_filename (char *name, int *first)
{
/* Table of files printed so far. Since a single source file can
result in several partial symbol tables, we need to avoid printing
}
static void
-sources_info (ignore, from_tty)
- char *ignore;
- int from_tty;
+sources_info (char *ignore, int from_tty)
{
register struct symtab *s;
register struct partial_symtab *ps;
if (!have_full_symbols () && !have_partial_symbols ())
{
- error (no_symtab_msg);
+ error ("No symbol table is loaded. Use the \"file\" command.");
}
printf_filtered ("Source files for which symbols have been read in:\n\n");
}
static int
-file_matches (file, files, nfiles)
- char *file;
- char *files[];
- int nfiles;
+file_matches (char *file, char *files[], int nfiles)
{
int i;
/* Free any memory associated with a search. */
void
-free_search_symbols (symbols)
- struct symbol_search *symbols;
+free_search_symbols (struct symbol_search *symbols)
{
struct symbol_search *p;
struct symbol_search *next;
for (p = symbols; p != NULL; p = next)
{
next = p->next;
- free (p);
+ xfree (p);
}
}
free_search_symbols should be called when *MATCHES is no longer needed.
*/
void
-search_symbols (regexp, kind, nfiles, files, matches)
- char *regexp;
- namespace_enum kind;
- int nfiles;
- char *files[];
- struct symbol_search **matches;
-
+search_symbols (char *regexp, namespace_enum kind, int nfiles, char *files[],
+ struct symbol_search **matches)
{
register struct symtab *s;
register struct partial_symtab *ps;
struct symbol_search *tail;
struct cleanup *old_chain = NULL;
- if (kind < LABEL_NAMESPACE)
+ if (kind < VARIABLES_NAMESPACE)
error ("must search on specific namespace");
- ourtype = types[(int) (kind - LABEL_NAMESPACE)];
- ourtype2 = types2[(int) (kind - LABEL_NAMESPACE)];
- ourtype3 = types3[(int) (kind - LABEL_NAMESPACE)];
- ourtype4 = types4[(int) (kind - LABEL_NAMESPACE)];
+ ourtype = types[(int) (kind - VARIABLES_NAMESPACE)];
+ ourtype2 = types2[(int) (kind - VARIABLES_NAMESPACE)];
+ ourtype3 = types3[(int) (kind - VARIABLES_NAMESPACE)];
+ ourtype4 = types4[(int) (kind - VARIABLES_NAMESPACE)];
sr = *matches = NULL;
tail = NULL;
regarding the match to gdb_stdout.
*/
static void
-print_symbol_info (kind, s, sym, block, last)
- namespace_enum kind;
- struct symtab *s;
- struct symbol *sym;
- int block;
- char *last;
+print_symbol_info (namespace_enum kind, struct symtab *s, struct symbol *sym,
+ int block, char *last)
{
if (last == NULL || strcmp (last, s->filename) != 0)
{
/* Typedef that is not a C++ class */
if (kind == TYPES_NAMESPACE
&& SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
- c_typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
+ typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
/* variable, func, or typedef-that-is-c++-class */
else if (kind < TYPES_NAMESPACE ||
(kind == TYPES_NAMESPACE &&
else
{
fputs_filtered (demangled_name, stream);
- free (demangled_name);
+ xfree (demangled_name);
}
#endif
}
for non-debugging symbols to gdb_stdout.
*/
static void
-print_msymbol_info (msymbol)
- struct minimal_symbol *msymbol;
+print_msymbol_info (struct minimal_symbol *msymbol)
{
printf_filtered (" %08lx %s\n",
(unsigned long) SYMBOL_VALUE_ADDRESS (msymbol),
matches.
*/
static void
-symtab_symbol_info (regexp, kind, from_tty)
- char *regexp;
- namespace_enum kind;
- int from_tty;
+symtab_symbol_info (char *regexp, namespace_enum kind, int from_tty)
{
static char *classnames[]
=
printf_filtered (regexp
? "All %ss matching regular expression \"%s\":\n"
: "All defined %ss:\n",
- classnames[(int) (kind - LABEL_NAMESPACE - 1)], regexp);
+ classnames[(int) (kind - VARIABLES_NAMESPACE)], regexp);
for (p = symbols; p != NULL; p = p->next)
{
}
static void
-variables_info (regexp, from_tty)
- char *regexp;
- int from_tty;
+variables_info (char *regexp, int from_tty)
{
symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty);
}
static void
-functions_info (regexp, from_tty)
- char *regexp;
- int from_tty;
+functions_info (char *regexp, int from_tty)
{
symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty);
}
static void
-types_info (regexp, from_tty)
- char *regexp;
- int from_tty;
+types_info (char *regexp, int from_tty)
{
symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty);
}
#if 0
/* Tiemann says: "info methods was never implemented." */
static void
-methods_info (regexp)
- char *regexp;
+methods_info (char *regexp)
{
symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty);
}
/* Breakpoint all functions matching regular expression. */
#ifdef UI_OUT
void
-rbreak_command_wrapper (regexp, from_tty)
- char *regexp;
- int from_tty;
+rbreak_command_wrapper (char *regexp, int from_tty)
{
rbreak_command (regexp, from_tty);
}
#endif
static void
-rbreak_command (regexp, from_tty)
- char *regexp;
- int from_tty;
+rbreak_command (char *regexp, int from_tty)
{
struct symbol_search *ss;
struct symbol_search *p;
or if a and b have the same pc range.
Return zero otherwise. */
int
-contained_in (a, b)
- struct block *a, *b;
+contained_in (struct block *a, struct block *b)
{
if (!a || !b)
return 0;
characters. If so, add it to the current completion list. */
static void
-completion_list_add_name (symname, sym_text, sym_text_len, text, word)
- char *symname;
- char *sym_text;
- int sym_text_len;
- char *text;
- char *word;
+completion_list_add_name (char *symname, char *sym_text, int sym_text_len,
+ char *text, char *word)
{
int newsize;
int i;
return;
}
- /* Clip any symbol names that we've already considered. (This is a
- time optimization) */
-
- for (i = 0; i < return_val_index; ++i)
- {
- if (STREQ (symname, return_val[i]))
- {
- return;
- }
- }
-
/* We have a match for a completion, so add SYMNAME to the current list
of matches. Note that the name is moved to freshly malloc'd space. */
strcat (new, symname);
}
- /* Recheck for duplicates if we intend to add a modified symbol. */
- if (word != sym_text)
- {
- for (i = 0; i < return_val_index; ++i)
- {
- if (STREQ (new, return_val[i]))
- {
- free (new);
- return;
- }
- }
- }
-
if (return_val_index + 3 > return_val_size)
{
newsize = (return_val_size *= 2) * sizeof (char *);
I'm not going to worry about this; hopefully there won't be that many. */
char **
-make_symbol_completion_list (text, word)
- char *text;
- char *word;
+make_symbol_completion_list (char *text, char *word)
{
register struct symbol *sym;
register struct symtab *s;
*/
int
-in_prologue (pc, func_start)
- CORE_ADDR pc;
- CORE_ADDR func_start;
+in_prologue (CORE_ADDR pc, CORE_ADDR func_start)
{
struct symtab_and_line sal;
CORE_ADDR func_addr, func_end;
characters. If so, add it to the current completion list. */
static void
-overload_list_add_symbol (sym, oload_name)
- struct symbol *sym;
- char *oload_name;
+overload_list_add_symbol (struct symbol *sym, char *oload_name)
{
int newsize;
int i;
/* skip symbols that cannot match */
if (strcmp (sym_name, oload_name) != 0)
{
- free (sym_name);
+ xfree (sym_name);
return;
}
sym_return_val[sym_return_val_index++] = sym;
sym_return_val[sym_return_val_index] = NULL;
- free (sym_name);
+ xfree (sym_name);
}
/* Return a null-terminated list of pointers to function symbols that
struct symbol **
-make_symbol_overload_list (fsym)
- struct symbol *fsym;
+make_symbol_overload_list (struct symbol *fsym)
{
register struct symbol *sym;
register struct symtab *s;
}
}
- free (oload_name);
+ xfree (oload_name);
return (sym_return_val);
}
/* End of overload resolution functions */
\f
+struct symtabs_and_lines
+decode_line_spec (char *string, int funfirstline)
+{
+ struct symtabs_and_lines sals;
+ if (string == 0)
+ error ("Empty line specification.");
+ sals = decode_line_1 (&string, funfirstline,
+ current_source_symtab, current_source_line,
+ (char ***) NULL);
+ if (*string)
+ error ("Junk at end of line specification: %s", string);
+ return sals;
+}
void
-_initialize_symtab ()
+_initialize_symtab (void)
{
add_info ("variables", variables_info,
"All global and static variable names, or those matching REGEXP.");
projects / binutils.git / blobdiff