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From-SVN: r924
This commit is contained in:
Richard Stallman 1992-05-06 23:00:15 +00:00
parent 95949d0ccc
commit dad0145a31
1 changed files with 47 additions and 1 deletions
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48
gcc/dbxout.c
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@ -853,7 +853,13 @@ dbxout_type (type, full, show_arg_types)
case TYPE_UNSEEN:
break;
case TYPE_XREF:
if (! full)
/* If we have already had a cross reference,
and either that's all we want or that's the best we could do,
don't repeat the cross reference.
Sun dbx crashes if we do. */
if (! full || TYPE_SIZE (type) == 0
/* No way in DBX fmt to describe a variable size. */
|| TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
return;
break;
case TYPE_DEFINED:
@ -1846,6 +1852,46 @@ dbxout_parms (parms)
dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
dbxout_finish_symbol (parms);
}
else if (GET_CODE (DECL_RTL (parms)) == MEM
&& GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
&& rtx_equal_p (XEXP (DECL_RTL (parms), 0),
DECL_INCOMING_RTL (parms)))
{
/* Parm was passed via invisible reference.
That is, its address was passed in a register.
Output it as if it lived in that register.
The debugger will know from the type
that it was actually passed by invisible reference. */
char regparm_letter;
/* Parm passed in registers and lives in registers or nowhere. */
current_sym_code = DBX_REGPARM_STABS_CODE;
regparm_letter = DBX_REGPARM_STABS_LETTER;
/* DECL_RTL looks like (MEM (REG...). Get the register number. */
current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
current_sym_addr = 0;
FORCE_TEXT;
if (DECL_NAME (parms))
{
current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
IDENTIFIER_POINTER (DECL_NAME (parms)),
DBX_REGPARM_STABS_LETTER);
}
else
{
current_sym_nchars = 8;
fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
DBX_REGPARM_STABS_LETTER);
}
dbxout_type (TREE_TYPE (parms), 0, 0);
dbxout_finish_symbol (parms);
}
else if (GET_CODE (DECL_RTL (parms)) == MEM
&& XEXP (DECL_RTL (parms), 0) != const0_rtx)
{