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Cope with demangling function names that include a double underscore.

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This commit is contained in:
Nick Clifton 2002-08-16 11:44:03 +00:00
parent 2ec3c90a77
commit 4b73ca9289
2 changed files with 42 additions and 25 deletions
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10
binutils/ChangeLog
View File

@ -1,3 +1,13 @@
2002-08-16 Sivaguru Sankaridurg <siva@eternal-systems.com>
* stabs.c (parse_stab_argtype): Pass length of physname to
stab_demangle_argtypes.
(stab_demangle_argtypes): Add new parameter - length of physname.
Pass length of physname on to stab_demangle_prefix.
(stab_demangle_prefix): Add new parameter - length of physname.
Use length of physname (if supplied) to compute end of function
name.
2002-08-15 Alan Modra <amodra@bigpond.net.au>
* readelf.c: Include elf/i370.h.

57
binutils/stabs.c
View File

@ -1,5 +1,5 @@
/* stabs.c -- Parse stabs debugging information
Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001
Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@cygnus.com>.
@ -213,7 +213,7 @@ static debug_type stab_find_tagged_type
PARAMS ((PTR, struct stab_handle *, const char *, int,
enum debug_type_kind));
static debug_type *stab_demangle_argtypes
PARAMS ((PTR, struct stab_handle *, const char *, boolean *));
PARAMS ((PTR, struct stab_handle *, const char *, boolean *, unsigned int));
/* Save a string in memory. */
@ -2908,6 +2908,7 @@ parse_stab_argtypes (dhandle, info, class_type, fieldname, tagname,
boolean is_destructor;
debug_type *args;
boolean varargs;
unsigned int physname_len = 0;
/* Constructors are sometimes handled specially. */
is_full_physname_constructor = ((argtypes[0] == '_'
@ -2984,6 +2985,7 @@ parse_stab_argtypes (dhandle, info, class_type, fieldname, tagname,
strcpy (physname, fieldname);
}
physname_len = strlen (physname);
strcat (physname, buf);
if (tagname != NULL)
strcat (physname, tagname);
@ -3000,7 +3002,7 @@ parse_stab_argtypes (dhandle, info, class_type, fieldname, tagname,
false);
}
args = stab_demangle_argtypes (dhandle, info, *pphysname, &varargs);
args = stab_demangle_argtypes (dhandle, info, *pphysname, &varargs, physname_len);
if (args == NULL)
return DEBUG_TYPE_NULL;
@ -3729,7 +3731,7 @@ static unsigned int stab_demangle_count PARAMS ((const char **));
static boolean stab_demangle_get_count
PARAMS ((const char **, unsigned int *));
static boolean stab_demangle_prefix
PARAMS ((struct stab_demangle_info *, const char **));
PARAMS ((struct stab_demangle_info *, const char **, unsigned int));
static boolean stab_demangle_function_name
PARAMS ((struct stab_demangle_info *, const char **, const char *));
static boolean stab_demangle_signature
@ -3821,11 +3823,12 @@ stab_demangle_get_count (pp, pi)
terminated array of argument types. */
static debug_type *
stab_demangle_argtypes (dhandle, info, physname, pvarargs)
stab_demangle_argtypes (dhandle, info, physname, pvarargs, physname_len)
PTR dhandle;
struct stab_handle *info;
const char *physname;
boolean *pvarargs;
unsigned int physname_len;
{
struct stab_demangle_info minfo;
@ -3842,7 +3845,7 @@ stab_demangle_argtypes (dhandle, info, physname, pvarargs)
/* cplus_demangle checks for special GNU mangled forms, but we can't
see any of them in mangled method argument types. */
if (! stab_demangle_prefix (&minfo, &physname))
if (! stab_demangle_prefix (&minfo, &physname, physname_len))
goto error_return;
if (*physname != '\0')
@ -3869,9 +3872,10 @@ stab_demangle_argtypes (dhandle, info, physname, pvarargs)
/* Demangle the prefix of the mangled name. */
static boolean
stab_demangle_prefix (minfo, pp)
stab_demangle_prefix (minfo, pp, physname_len)
struct stab_demangle_info *minfo;
const char **pp;
unsigned int physname_len;
{
const char *scan;
unsigned int i;
@ -3879,26 +3883,29 @@ stab_demangle_prefix (minfo, pp)
/* cplus_demangle checks for global constructors and destructors,
but we can't see them in mangled argument types. */
/* Look for `__'. */
scan = *pp;
do
if (physname_len)
scan = *pp + physname_len;
else
{
scan = strchr (scan, '_');
/* Look for `__'. */
scan = *pp;
do
scan = strchr (scan, '_');
while (scan != NULL && *++scan != '_');
if (scan == NULL)
{
stab_bad_demangle (*pp);
return false;
}
--scan;
/* We found `__'; move ahead to the last contiguous `__' pair. */
i = strspn (scan, "_");
if (i > 2)
scan += i - 2;
}
while (scan != NULL && *++scan != '_');
if (scan == NULL)
{
stab_bad_demangle (*pp);
return false;
}
--scan;
/* We found `__'; move ahead to the last contiguous `__' pair. */
i = strspn (scan, "_");
if (i > 2)
scan += i - 2;
if (scan == *pp
&& (ISDIGIT (scan[2])