FreeChainXenon/binutils-gdb
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Changes from metin@ibmpa.awdpa.ibm.com (Metin G. Ozisik).

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* buildsym.c  (#ifdef RS6000_TARGET):  Don't create unnecessary
	symbols for nameless types.  And, handle `R' (register parameter
	type) for AIX.  (an extension to existing stabstring grammar).
	* rs6000-xdep.c:  Fix typo (= should have been ==).
This commit is contained in:
Per Bothner 1992-04-09 07:57:10 +00:00
parent cf9838aff0
commit 095db7ce45
2 changed files with 40 additions and 1 deletions
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39
gdb/buildsym.c
View file

@ -1082,6 +1082,15 @@ define_symbol (valu, string, desc, type, objfile)
register int i; register int i;
struct type *temptype; struct type *temptype;
#ifdef IBM6000_TARGET
/* We would like to eliminate nameless symbols, but keep their types.
E.g. stab entry ":t10=*2" should produce a type 10, which is a pointer
to type 2, but, should not creat a symbol to address that type. Since
the symbol will be nameless, there is no way any user can refer to it. */
int nameless;
#endif
/* Ignore syms with empty names. */ /* Ignore syms with empty names. */
if (string[0] == 0) if (string[0] == 0)
return 0; return 0;
@ -1090,6 +1099,12 @@ define_symbol (valu, string, desc, type, objfile)
if (p == 0) if (p == 0)
return 0; return 0;
#ifdef IBM6000_TARGET
/* If a nameless stab entry, all we need is the type, not the symbol.
e.g. ":t10=*2" */
nameless = (p == string);
#endif
sym = (struct symbol *)obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol)); sym = (struct symbol *)obstack_alloc (&objfile -> symbol_obstack, sizeof (struct symbol));
if (processing_gcc_compilation) { if (processing_gcc_compilation) {
@ -1148,7 +1163,16 @@ define_symbol (valu, string, desc, type, objfile)
Handle Sun-style local fortran array types 'ar...' . Handle Sun-style local fortran array types 'ar...' .
(gnu@cygnus.com) -- this strchr() handles them properly? (gnu@cygnus.com) -- this strchr() handles them properly?
(tiemann@cygnus.com) -- 'C' is for catch. */ (tiemann@cygnus.com) -- 'C' is for catch. */
#ifdef IBM6000_TARGET
/* 'R' is for register parameters. */
if (!strchr ("cfFGpPrStTvVXCR", *p))
#else
if (!strchr ("cfFGpPrStTvVXC", *p)) if (!strchr ("cfFGpPrStTvVXC", *p))
#endif
deftype = 'l'; deftype = 'l';
else else
deftype = *p++; deftype = *p++;
@ -1226,6 +1250,12 @@ define_symbol (valu, string, desc, type, objfile)
SYMBOL_TYPE (sym) SYMBOL_TYPE (sym)
= lookup_pointer_type (lookup_function_type (read_type (&p, objfile))); = lookup_pointer_type (lookup_function_type (read_type (&p, objfile)));
} }
#ifdef IBM6000_TARGET
else if (deftype == 'R')
SYMBOL_TYPE (sym) = read_type (&p);
#endif
else else
{ {
struct type *type_read; struct type *type_read;
@ -1408,6 +1438,9 @@ define_symbol (valu, string, desc, type, objfile)
add_symbol_to_list (sym, &local_symbols); add_symbol_to_list (sym, &local_symbols);
break; break;
#ifdef IBM6000_TARGET
case 'R':
#endif
case 'r': case 'r':
/* Register variable (either global or local). */ /* Register variable (either global or local). */
SYMBOL_CLASS (sym) = LOC_REGISTER; SYMBOL_CLASS (sym) = LOC_REGISTER;
@ -1433,6 +1466,12 @@ define_symbol (valu, string, desc, type, objfile)
break; break;
case 't': case 't':
#ifdef IBM6000_TARGET
/* For a nameless type, we don't want a create a symbol, thus we
did not use `sym'. Return without further processing. */
if (nameless) return NULL;
#endif
SYMBOL_CLASS (sym) = LOC_TYPEDEF; SYMBOL_CLASS (sym) = LOC_TYPEDEF;
SYMBOL_VALUE (sym) = valu; SYMBOL_VALUE (sym) = valu;
SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE; SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;

2
gdb/rs6000-xdep.c
View file

@ -258,7 +258,7 @@ frame_get_cache_fsr (fi, fdatap)
if (fi->cache_fsr) if (fi->cache_fsr)
return; return;
if (fdatap = NULL) { if (fdatap == NULL) {
fdatap = &work_fdata; fdatap = &work_fdata;
function_frame_info (get_pc_function_start (fi->pc), fdatap); function_frame_info (get_pc_function_start (fi->pc), fdatap);
} }