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* mdebugread.c (handle_psymbol_enumerators, parse_symbol):

Browse source 
Recognize enums from alpha cc -migrate.
	(upgrade_type):  Pass correct fd to parse_symbol when parsing
	the index type of an array.
	(parse_procedure, parse_lines, psymtab_to_symtab_1):  Handle
	unsorted procedure descriptors from Irix 5.x and Alpha OSF/1-3.x
	shared libraries. Use CORE_ADDR instead of `unsigned long' in
	procedure descriptor address computations.

	* symtab.c (decode_line_1):  Prevent accidental strchr match
	of a null character with the terminating null character of
	gdb_completer_quote_characters.
	(cplusplus_hint):  Make sure that only a single quote is printed
	in the hint message.
This commit is contained in:
Peter Schauer 1995-11-25 11:32:18 +00:00
parent eade8e035c
commit 9b041f69fc
3 changed files with 112 additions and 44 deletions
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17
gdb/ChangeLog
View file

@ -1,3 +1,20 @@
Sat Nov 25 02:56:38 1995 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* mdebugread.c (handle_psymbol_enumerators, parse_symbol):
Recognize enums from alpha cc -migrate.
(upgrade_type): Pass correct fd to parse_symbol when parsing
the index type of an array.
(parse_procedure, parse_lines, psymtab_to_symtab_1): Handle
unsorted procedure descriptors from Irix 5.x and Alpha OSF/1-3.x
shared libraries. Use CORE_ADDR instead of `unsigned long' in
procedure descriptor address computations.
* symtab.c (decode_line_1): Prevent accidental strchr match
of a null character with the terminating null character of
gdb_completer_quote_characters.
(cplusplus_hint): Make sure that only a single quote is printed
in the hint message.
Fri Nov 24 16:17:01 1995 Jeffrey A Law (law@cygnus.com)
* top.c (recurse_read_control_structure): Don't make cleanups

107
gdb/mdebugread.c
View file

@ -380,7 +380,7 @@ static struct linetable *
shrink_linetable PARAMS ((struct linetable *));
static void
handle_psymbol_enumerators PARAMS ((struct objfile *, FDR *, int));
handle_psymbol_enumerators PARAMS ((struct objfile *, FDR *, int, CORE_ADDR));
static char *
mdebug_next_symbol_text PARAMS ((void));
@ -931,8 +931,11 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
if (nfields == 0 && type_code == TYPE_CODE_UNDEF)
/* If the type of the member is Nil (or Void),
without qualifiers, assume the tag is an
enumeration. */
if (tsym.index == indexNil)
enumeration.
Alpha cc -migrate enums are recognized by a zero
index and a zero symbol value. */
if (tsym.index == indexNil
|| (tsym.index == 0 && sh->value == 0))
type_code = TYPE_CODE_ENUM;
else
{
@ -1777,7 +1780,8 @@ upgrade_type (fd, tpp, tq, ax, bigend, sym_name)
}
fh = get_rfd (fd, rf);
indx = parse_type (fd, debug_info->external_aux + fh->iauxBase,
indx = parse_type (fh - debug_info->fdr,
debug_info->external_aux + fh->iauxBase,
id, (int *) NULL, bigend, sym_name);
/* The bounds type should be an integer type, but might be anything
@ -1851,14 +1855,14 @@ upgrade_type (fd, tpp, tq, ax, bigend, sym_name)
to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol
in question, or NULL to use top_stack->cur_block. */
static void parse_procedure PARAMS ((PDR *, struct symtab *, unsigned long,
static void parse_procedure PARAMS ((PDR *, struct symtab *, CORE_ADDR,
struct partial_symtab *));
static void
parse_procedure (pr, search_symtab, first_off, pst)
parse_procedure (pr, search_symtab, lowest_pdr_addr, pst)
PDR *pr;
struct symtab *search_symtab;
unsigned long first_off;
CORE_ADDR lowest_pdr_addr;
struct partial_symtab *pst;
{
struct symbol *s, *i;
@ -1964,7 +1968,7 @@ parse_procedure (pr, search_symtab, first_off, pst)
e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
e->pdr = *pr;
e->pdr.isym = (long) s;
e->pdr.adr += pst->textlow - first_off;
e->pdr.adr += pst->textlow - lowest_pdr_addr;
/* Correct incorrect setjmp procedure descriptor from the library
to make backtrace through setjmp work. */
@ -2113,20 +2117,20 @@ parse_external (es, bigend, section_offsets)
with that and do not need to reorder our linetables */
static void parse_lines PARAMS ((FDR *, PDR *, struct linetable *, int,
struct partial_symtab *));
struct partial_symtab *, CORE_ADDR));
static void
parse_lines (fh, pr, lt, maxlines, pst)
parse_lines (fh, pr, lt, maxlines, pst, lowest_pdr_addr)
FDR *fh;
PDR *pr;
struct linetable *lt;
int maxlines;
struct partial_symtab *pst;
CORE_ADDR lowest_pdr_addr;
{
unsigned char *base;
int j, k;
int delta, count, lineno = 0;
unsigned long first_off = pr->adr;
if (fh->cbLine == 0)
return;
@ -2135,8 +2139,8 @@ parse_lines (fh, pr, lt, maxlines, pst)
k = 0;
for (j = 0; j < fh->cpd; j++, pr++)
{
long l;
unsigned long adr;
CORE_ADDR l;
CORE_ADDR adr;
unsigned char *halt;
/* No code for this one */
@ -2153,7 +2157,7 @@ parse_lines (fh, pr, lt, maxlines, pst)
halt = base + fh->cbLine;
base += pr->cbLineOffset;
adr = pst->textlow + pr->adr - first_off;
adr = pst->textlow + pr->adr - lowest_pdr_addr;
l = adr >> 2; /* in words */
for (lineno = pr->lnLow; base < halt; )
@ -2794,7 +2798,7 @@ parse_partial_symbols (objfile, section_offsets)
sh.value,
psymtab_language, objfile);
}
handle_psymbol_enumerators (objfile, fh, sh.st);
handle_psymbol_enumerators (objfile, fh, sh.st, sh.value);
/* Skip over the block */
new_sdx = sh.index;
@ -3017,10 +3021,11 @@ parse_partial_symbols (objfile, section_offsets)
all the the enum constants to the partial symbol table. */
static void
handle_psymbol_enumerators (objfile, fh, stype)
handle_psymbol_enumerators (objfile, fh, stype, svalue)
struct objfile *objfile;
FDR *fh;
int stype;
CORE_ADDR svalue;
{
const bfd_size_type external_sym_size = debug_swap->external_sym_size;
void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *))
@ -3038,12 +3043,15 @@ handle_psymbol_enumerators (objfile, fh, stype)
case stBlock:
/* It is an enumerated type if the next symbol entry is a stMember
and its auxiliary index is indexNil or its auxiliary entry
is a plain btNil or btVoid. */
is a plain btNil or btVoid.
Alpha cc -migrate enums are recognized by a zero index and
a zero symbol value. */
(*swap_sym_in) (cur_bfd, ext_sym, &sh);
if (sh.st != stMember)
return;
if (sh.index == indexNil)
if (sh.index == indexNil
|| (sh.index == 0 && svalue == 0))
break;
(*debug_swap->swap_tir_in) (fh->fBigendian,
&(debug_info->external_aux
@ -3113,6 +3121,7 @@ psymtab_to_symtab_1 (pst, filename)
struct symtab *st;
FDR *fh;
struct linetable *lines;
CORE_ADDR lowest_pdr_addr = 0;
if (pst->readin)
return;
@ -3186,10 +3195,6 @@ psymtab_to_symtab_1 (pst, filename)
if (processing_gcc_compilation != 0)
{
char *pdr_ptr;
char *pdr_end;
int first_pdr;
unsigned long first_off = 0;
/* This symbol table contains stabs-in-ecoff entries. */
@ -3279,21 +3284,42 @@ psymtab_to_symtab_1 (pst, filename)
generated via asm statements. */
/* Fill in procedure info next. */
first_pdr = 1;
pdr_ptr = ((char *) debug_info->external_pdr
+ fh->ipdFirst * external_pdr_size);
pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
for (; pdr_ptr < pdr_end; pdr_ptr += external_pdr_size)
if (fh->cpd > 0)
{
PDR pr;
PDR *pr_block;
struct cleanup *old_chain;
char *pdr_ptr;
char *pdr_end;
PDR *pdr_in;
PDR *pdr_in_end;
(*swap_pdr_in) (cur_bfd, pdr_ptr, &pr);
if (first_pdr)
pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));
old_chain = make_cleanup (free, pr_block);
pdr_ptr = ((char *) debug_info->external_pdr
+ fh->ipdFirst * external_pdr_size);
pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
pdr_in = pr_block;
for (;
pdr_ptr < pdr_end;
pdr_ptr += external_pdr_size, pdr_in++)
{
first_off = pr.adr;
first_pdr = 0;
(*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
/* Determine lowest PDR address, the PDRs are not always
sorted. */
if (pdr_in == pr_block)
lowest_pdr_addr = pdr_in->adr;
else if (pdr_in->adr < lowest_pdr_addr)
lowest_pdr_addr = pdr_in->adr;
}
parse_procedure (&pr, st, first_off, pst);
pdr_in = pr_block;
pdr_in_end = pdr_in + fh->cpd;
for (; pdr_in < pdr_in_end; pdr_in++)
parse_procedure (pdr_in, st, lowest_pdr_addr, pst);
do_cleanups (old_chain);
}
}
else
@ -3386,9 +3412,18 @@ psymtab_to_symtab_1 (pst, filename)
for (;
pdr_ptr < pdr_end;
pdr_ptr += external_pdr_size, pdr_in++)
(*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
{
(*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
parse_lines (fh, pr_block, lines, maxlines, pst);
/* Determine lowest PDR address, the PDRs are not always
sorted. */
if (pdr_in == pr_block)
lowest_pdr_addr = pdr_in->adr;
else if (pdr_in->adr < lowest_pdr_addr)
lowest_pdr_addr = pdr_in->adr;
}
parse_lines (fh, pr_block, lines, maxlines, pst, lowest_pdr_addr);
if (lines->nitems < fh->cline)
lines = shrink_linetable (lines);
@ -3396,7 +3431,7 @@ psymtab_to_symtab_1 (pst, filename)
pdr_in = pr_block;
pdr_in_end = pdr_in + fh->cpd;
for (; pdr_in < pdr_in_end; pdr_in++)
parse_procedure (pdr_in, 0, pr_block->adr, pst);
parse_procedure (pdr_in, 0, lowest_pdr_addr, pst);
do_cleanups (old_chain);
}

32
gdb/symtab.c
View file

@ -1,5 +1,5 @@
/* Symbol table lookup for the GNU debugger, GDB.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
Free Software Foundation, Inc.
This file is part of GDB.
@ -110,6 +110,8 @@ void
cplusplus_hint (name)
char *name;
{
while (*name == '\'')
name++;
printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name);
printf_filtered ("(Note leading single quote.)\n");
}
@ -1915,9 +1917,10 @@ decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
/* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
s = NULL;
is_quoted = (strchr(gdb_completer_quote_characters, **argptr) != NULL);
has_parens = (( pp = strchr(*argptr, '(')) != NULL &&
(pp = strchr(pp, ')')) != NULL);
is_quoted = (**argptr
&& strchr (gdb_completer_quote_characters, **argptr) != NULL);
has_parens = ((pp = strchr (*argptr, '(')) != NULL
&& (pp = strchr (pp, ')')) != NULL);
for (p = *argptr; *p; p++)
{
@ -1962,7 +1965,8 @@ decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
{
/* Arg token is not digits => try it as a function name
Find the next token(everything up to end or next blank). */
if (strchr(gdb_completer_quote_characters, **argptr) != NULL)
if (**argptr
&& strchr (gdb_completer_quote_characters, **argptr) != NULL)
{
p = skip_quoted(*argptr);
*argptr = *argptr + 1;
@ -1998,8 +2002,11 @@ decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
copy = (char *) alloca (p - *argptr + 1 );
memcpy (copy, *argptr, p - *argptr);
copy[p - *argptr] = '\0';
if (strchr(gdb_completer_quote_characters, copy[p-*argptr-1]) != NULL)
copy[p - *argptr -1] = '\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 */
@ -2211,7 +2218,8 @@ decode_line_1 (argptr, funfirstline, default_symtab, default_line, canonical)
memcpy (copy, *argptr, p - *argptr);
copy[p - *argptr] = '\0';
if (p != *argptr
&& (copy[0] == copy [p - *argptr - 1])
&& copy[0]
&& copy[0] == copy [p - *argptr - 1]
&& strchr (gdb_completer_quote_characters, copy[0]) != NULL)
{
copy [p - *argptr - 1] = '\0';
@ -3243,6 +3251,9 @@ make_symbol_completion_list (text, word)
/* Determine if PC is in the prologue of a function. The prologue is the area
between the first instruction of a function, and the first executable line.
Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue.
If non-zero, func_start is where we thing the prologue starts, possibly
by previous examination of symbol table information.
*/
int
@ -3276,6 +3287,11 @@ in_prologue (pc, func_start)
nosyms:
/* If func_start is zero (meaning unknown) then we don't know whether pc is
in the prologue or not. I.E. it might be. */
if (!func_start) return 1;
/* We need to call the target-specific prologue skipping functions with the
function's start address because PC may be pointing at an instruction that
could be mistakenly considered part of the prologue. */