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* ch-exp.y (decode_integer_value, match_character_literal,

Browse Source 
match_bitstring_literal):  Guard tolower calls with isupper,
	tolower on old BSD systems blindly subtracts a constant.
	* dbxread.c (read_ofile_symtab):  Check for __gnu_compiled_* as
	well when determining the producer of the object file.
	* mdebugread.c (has_opaque_xref):  New function to check for
	cross reference to an opaque aggregate.
	* mdebugread.c (parse_symbol, parse_partial_symbols):  Do not
	enter typedefs to opaque aggregates into the symbol tables.
	* mdebugread.c (parse_external):  Remove skip_procedures argument,
	it has always been 1.  Remove code that handled stProc symbols,
	it was never executed and was wrong, as the index of a
	stProc symbol points to the local symbol table and not to the
	auxiliary symbol info. Update caller.
	* mdebugread.c (parse_partial_symbols):  Do not enter external
	stProc symbols into the partial symbol table, they are already
	entered into the minimal symbol table.
	* config/i386/tm-symmetry.h:  Clean up, it is now only used for Dynix.
	Remove all conditionals and definitions for ptx.
	I386_REGNO_TO_SYMMETRY moved to here from symm-tdep.c.
	Fix addresses of floating point registers in REGISTER_U_ADDR.
	STORE_STRUCT_RETURN now handles cc and gcc conventions.
	FRAME_CHAIN, FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC,
	IN_SIGTRAMP, SIGCONTEXT_PC_OFFSET defined to make backtracing through
	signal trampoline code work.
	* config/i386/xm-symmetry.h:  Clean up, it is now only used for Dynix.
	Remove all conditionals and definitions for ptx.
	Remove KDB definitions.
	* symm-nat.c (store_inferior_registers):  Fetch registers before
	storing them to obtain valid floating point control registers.
	Store fpu registers.
	* symm-nat.c (print_1167_control_word):  Dynix 3.1.1 defines
	FPA_PCR_CC_C0 and FPA_PCR_CC_C1, avoid duplicate case value.
	* symm-nat.c (fetch_inferior_registers, child_xfer_memory):
	Fix typos.
	* symm-nat.c (child_resume):  Update type of `signal' parameter.
	* symm-tdep.c (I386_REGNO_TO_SYMMETRY):  Moved to tm-symmetry.h.
This commit is contained in:
Peter Schauer
1994-03-30 09:57:08 +00:00
parent 1f655b81a6
commit db2302cb93
6 changed files with 144 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

87
gdb/mdebugread.c
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@@ -292,6 +292,9 @@ parse_partial_symbols PARAMS ((struct objfile *,
static FDR
*get_rfd PARAMS ((int, int));
static int
has_opaque_xref PARAMS ((FDR *, SYMR *));
static int
cross_ref PARAMS ((int, union aux_ext *, struct type **, enum type_code,
char **, int, char *));
@@ -1235,6 +1238,11 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
to struct foo sometimes is given as `foo *' instead of `struct foo *'.
The problem is fixed with alpha cc. */
/* However if the typedef cross references to an opaque aggregate, it
is safe to omit it from the symbol table. */
if (has_opaque_xref (cur_fdr, sh))
break;
s = new_symbol (name);
SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
SYMBOL_CLASS (s) = LOC_TYPEDEF;
@@ -1856,18 +1864,16 @@ ecoff_relocate_efi (sym, delta)
}
/* Parse the external symbol ES. Just call parse_symbol() after
making sure we know where the aux are for it. For procedures,
parsing of the PDRs has already provided all the needed
information, we only parse them if SKIP_PROCEDURES is false,
and only if this causes no symbol duplication.
making sure we know where the aux are for it.
BIGEND says whether aux entries are big-endian or little-endian.
This routine clobbers top_stack->cur_block and ->cur_st. */
static void parse_external PARAMS ((EXTR *, int, struct section_offsets *));
static void
parse_external (es, skip_procedures, bigend, section_offsets)
parse_external (es, bigend, section_offsets)
EXTR *es;
int skip_procedures;
int bigend;
struct section_offsets *section_offsets;
{
@@ -1924,14 +1930,17 @@ parse_external (es, skip_procedures, bigend, section_offsets)
switch (es->asym.st)
{
case stProc:
/* If we have full symbols we do not need more */
if (skip_procedures)
return;
if (mylookup_symbol (debug_info->ssext + es->asym.iss,
top_stack->cur_block,
VAR_NAMESPACE, LOC_BLOCK))
break;
/* fall through */
case stStaticProc:
/* There is no need to parse the external procedure symbols.
If they are from objects compiled without -g, their index will
be indexNil, and the symbol definition from the minimal symbol
is preferrable (yielding a function returning int instead of int).
If the index points to a local procedure symbol, the local
symbol already provides the correct type.
Note that the index of the external procedure symbol points
to the local procedure symbol in the local symbol table, and
_not_ to the auxiliary symbol info. */
break;
case stGlobal:
case stLabel:
/* Note that the case of a symbol with indexNil must be handled
@@ -2477,8 +2486,8 @@ parse_partial_symbols (objfile, section_offsets)
case stTypedef:/* Typedef */
/* Skip typedefs for forward declarations and opaque
structs from alpha cc. */
if (sh.iss == 0)
structs from alpha and mips cc. */
if (sh.iss == 0 || has_opaque_xref (fh, &sh))
goto skip;
class = LOC_TYPEDEF;
break;
@@ -2571,14 +2580,10 @@ parse_partial_symbols (objfile, section_offsets)
continue;
case stProc:
case stStaticProc:
/* If the index of the global symbol is not indexNil,
it points to the local stProc symbol with the same
name, which has already been entered into the
partial symbol table above. */
if (psh->index != indexNil)
continue;
class = LOC_BLOCK;
break;
/* External procedure symbols have been entered
into the minimal symbol table in pass 2 above.
Ignore them, as parse_external will ignore them too. */
continue;
case stLabel:
class = LOC_LABEL;
break;
@@ -3067,7 +3072,7 @@ psymtab_to_symtab_1 (pst, filename)
ext_ptr = PST_PRIVATE (pst)->extern_tab;
for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++)
parse_external (ext_ptr, 1, fh->fBigendian, pst->section_offsets);
parse_external (ext_ptr, fh->fBigendian, pst->section_offsets);
/* If there are undefined symbols, tell the user.
The alpha has an undefined symbol for every symbol that is
@@ -3099,6 +3104,38 @@ psymtab_to_symtab_1 (pst, filename)
/* Ancillary parsing procedures. */
/* Return 1 if the symbol pointed to by SH has a cross reference
to an opaque aggregate type, else 0. */
static int
has_opaque_xref (fh, sh)
FDR *fh;
SYMR *sh;
{
TIR tir;
union aux_ext *ax;
RNDXR rn[1];
unsigned int rf;
if (sh->index == indexNil)
return 0;
ax = debug_info->external_aux + fh->iauxBase + sh->index;
ecoff_swap_tir_in (fh->fBigendian, &ax->a_ti, &tir);
if (tir.bt != btStruct && tir.bt != btUnion && tir.bt != btEnum)
return 0;
ax++;
ecoff_swap_rndx_in (fh->fBigendian, &ax->a_rndx, rn);
if (rn->rfd == 0xfff)
rf = AUX_GET_ISYM (fh->fBigendian, ax + 1);
else
rf = rn->rfd;
if (rf != -1)
return 0;
return 1;
}
/* Lookup the type at relative index RN. Return it in TPP
if found and in any event come up with its name PNAME.
BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).