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* config/sparc/tm-sparc.h: Define USE_REGISTER_NOT_ARG.

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* stabsread (define_symbol): If USE_REGISTER_NOT_ARG, go back to
	combining all 'p' and 'r' pairs into a LOC_REGPARM.
This commit is contained in:
Jim Kingdon
1994-03-26 16:00:02 +00:00
parent 72e35288c7
commit 649694ea87
3 changed files with 20 additions and 4 deletions
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14
gdb/stabsread.c
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@ -977,9 +977,11 @@ define_symbol (valu, string, desc, type, objfile)
/* Sun cc uses a pair of symbols, one 'p' and one 'r' with the same
name to represent an argument passed in a register.
GCC uses 'P' for the same case. So if we find such a symbol pair
we combine it into one 'P' symbol.
we combine it into one 'P' symbol. For Sun cc we need to do this
regardless of REG_STRUCT_HAS_ADDR, because the compiler puts out
the 'p' symbol even if it never saves the argument onto the stack.
But we only do this in the REG_STRUCT_HAS_ADDR case, so that
On most machines, we want to preserve both symbols, so that
we can still get information about what is going on with the
stack (VAX for computing args_printed, using stack slots instead
of saved registers in backtraces, etc.).
@ -991,14 +993,18 @@ define_symbol (valu, string, desc, type, objfile)
if (local_symbols
&& local_symbols->nsyms > 0
#ifndef USE_REGISTER_NOT_ARG
&& REG_STRUCT_HAS_ADDR (processing_gcc_compilation,
SYMBOL_TYPE (sym))
&& (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT
|| TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION))
|| TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_UNION)
#endif
)
{
struct symbol *prev_sym;
prev_sym = local_symbols->symbol[local_symbols->nsyms - 1];
if (SYMBOL_CLASS (prev_sym) == LOC_REF_ARG
if ((SYMBOL_CLASS (prev_sym) == LOC_REF_ARG
|| SYMBOL_CLASS (prev_sym) == LOC_ARG)
&& STREQ (SYMBOL_NAME (prev_sym), SYMBOL_NAME(sym)))
{
SYMBOL_CLASS (prev_sym) = LOC_REGPARM;