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Convert REG_STRUCT_HAS_ADDR to multi-arch. Use REG_STRUCT_HAS_ADDR_P

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in conversion.
This commit is contained in:
Andrew Cagney 2000-04-22 06:44:39 +00:00
parent 19be430370
commit d03e67c95f
6 changed files with 132 additions and 71 deletions
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15
gdb/ChangeLog
View file

@ -1,3 +1,18 @@
Fri Apr 21 15:23:13 2000 Andrew Cagney <cagney@b1.cygnus.com>
* stabsread.c (REG_STRUCT_HAS_ADDR): Delete default.
(define_symbol): Check REG_STRUCT_HAS_ADDR_P before using
REG_STRUCT_HAS_ADDR.
(define_symbol): Ditto.
* valops.c (hand_function_call): Replace #ifdef
REG_STRUCT_HAS_ADDR with if REG_STRUCT_HAS_ADDR_P. Re-indent
affected code.
* gdbarch.sh (REG_STRUCT_HAS_ADDR): Add along with the predicate
function REG_STRUCT_HAS_ADDR_P.
* gdbarch.h, gdbarch.c: Re-generate.
2000-04-21 Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* gdb-stabs.h (SECT_OFF_MAX): Increase to 40.

30
gdb/gdbarch.c
View file

@ -214,6 +214,7 @@ struct gdbarch
gdbarch_saved_pc_after_call_ftype *saved_pc_after_call;
gdbarch_frame_num_args_ftype *frame_num_args;
gdbarch_stack_align_ftype *stack_align;
gdbarch_reg_struct_has_addr_ftype *reg_struct_has_addr;
};
@ -319,6 +320,7 @@ struct gdbarch startup_gdbarch = {
0,
0,
0,
0,
/* startup_gdbarch() */
};
struct gdbarch *current_gdbarch = &startup_gdbarch;
@ -623,6 +625,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
&& (gdbarch->frame_num_args == 0))
internal_error ("gdbarch: verify_gdbarch: frame_num_args invalid");
/* Skip verify of stack_align, has predicate */
/* Skip verify of reg_struct_has_addr, has predicate */
}
@ -962,6 +965,10 @@ gdbarch_dump (void)
"gdbarch_update: STACK_ALIGN = 0x%08lx\n",
(long) current_gdbarch->stack_align
/*STACK_ALIGN ()*/);
fprintf_unfiltered (gdb_stdlog,
"gdbarch_update: REG_STRUCT_HAS_ADDR = 0x%08lx\n",
(long) current_gdbarch->reg_struct_has_addr
/*REG_STRUCT_HAS_ADDR ()*/);
}
struct gdbarch_tdep *
@ -2517,6 +2524,29 @@ set_gdbarch_stack_align (struct gdbarch *gdbarch,
gdbarch->stack_align = stack_align;
}
int
gdbarch_reg_struct_has_addr_p (struct gdbarch *gdbarch)
{
return gdbarch->reg_struct_has_addr != 0;
}
int
gdbarch_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type)
{
if (gdbarch->reg_struct_has_addr == 0)
internal_error ("gdbarch: gdbarch_reg_struct_has_addr invalid");
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_reg_struct_has_addr called\n");
return gdbarch->reg_struct_has_addr (gcc_p, type);
}
void
set_gdbarch_reg_struct_has_addr (struct gdbarch *gdbarch,
gdbarch_reg_struct_has_addr_ftype reg_struct_has_addr)
{
gdbarch->reg_struct_has_addr = reg_struct_has_addr;
}
/* Keep a registrary of per-architecture data-pointers required by GDB
modules. */

17
gdb/gdbarch.h
View file

@ -815,6 +815,23 @@ extern void set_gdbarch_stack_align (struct gdbarch *gdbarch, gdbarch_stack_alig
#define STACK_ALIGN(sp) (gdbarch_stack_align (current_gdbarch, sp))
#endif
#if defined (REG_STRUCT_HAS_ADDR)
/* Legacy for systems yet to multi-arch REG_STRUCT_HAS_ADDR */
#define REG_STRUCT_HAS_ADDR_P() (1)
#endif
extern int gdbarch_reg_struct_has_addr_p (struct gdbarch *gdbarch);
#if (GDB_MULTI_ARCH > 1) || !defined (REG_STRUCT_HAS_ADDR_P)
#define REG_STRUCT_HAS_ADDR_P() (gdbarch_reg_struct_has_addr_p (current_gdbarch))
#endif
typedef int (gdbarch_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
extern int gdbarch_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
extern void set_gdbarch_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_reg_struct_has_addr_ftype *reg_struct_has_addr);
#if (GDB_MULTI_ARCH > 1) || !defined (REG_STRUCT_HAS_ADDR)
#define REG_STRUCT_HAS_ADDR(gcc_p, type) (gdbarch_reg_struct_has_addr (current_gdbarch, gcc_p, type))
#endif
extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);

1
gdb/gdbarch.sh
View file

@ -322,6 +322,7 @@ f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:f
f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
#
F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
EOF
grep -v '^#'
}

10
gdb/stabsread.c
View file

@ -559,10 +559,6 @@ read_type_number (pp, typenums)
}
#if !defined (REG_STRUCT_HAS_ADDR)
#define REG_STRUCT_HAS_ADDR(gcc_p,type) 0
#endif
#define VISIBILITY_PRIVATE '0' /* Stabs character for private field */
#define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */
#define VISIBILITY_PUBLIC '2' /* Stabs character for public field */
@ -1899,6 +1895,7 @@ define_symbol (valu, string, desc, type, objfile)
if (local_symbols
&& local_symbols->nsyms > 0
#ifndef USE_REGISTER_NOT_ARG
&& REG_STRUCT_HAS_ADDR_P ()
&& REG_STRUCT_HAS_ADDR (processing_gcc_compilation,
SYMBOL_TYPE (sym))
&& (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT
@ -2156,8 +2153,9 @@ define_symbol (valu, string, desc, type, objfile)
/* When passing structures to a function, some systems sometimes pass
the address in a register, not the structure itself. */
if (REG_STRUCT_HAS_ADDR (processing_gcc_compilation, SYMBOL_TYPE (sym))
&& (SYMBOL_CLASS (sym) == LOC_REGPARM || SYMBOL_CLASS (sym) == LOC_ARG))
if (REG_STRUCT_HAS_ADDR_P ()
&& REG_STRUCT_HAS_ADDR (processing_gcc_compilation, SYMBOL_TYPE (sym))
&& (SYMBOL_CLASS (sym) == LOC_REGPARM || SYMBOL_CLASS (sym) == LOC_ARG))
{
struct type *symbol_type = check_typedef (SYMBOL_TYPE (sym));

130
gdb/valops.c
View file

@ -1510,72 +1510,72 @@ You must use a pointer to function type variable. Command ignored.", arg_name);
}
}
#if defined (REG_STRUCT_HAS_ADDR)
{
/* This is a machine like the sparc, where we may need to pass a pointer
to the structure, not the structure itself. */
for (i = nargs - 1; i >= 0; i--)
{
struct type *arg_type = check_typedef (VALUE_TYPE (args[i]));
if ((TYPE_CODE (arg_type) == TYPE_CODE_STRUCT
|| TYPE_CODE (arg_type) == TYPE_CODE_UNION
|| TYPE_CODE (arg_type) == TYPE_CODE_ARRAY
|| TYPE_CODE (arg_type) == TYPE_CODE_STRING
|| TYPE_CODE (arg_type) == TYPE_CODE_BITSTRING
|| TYPE_CODE (arg_type) == TYPE_CODE_SET
|| (TYPE_CODE (arg_type) == TYPE_CODE_FLT
&& TYPE_LENGTH (arg_type) > 8)
)
&& REG_STRUCT_HAS_ADDR (using_gcc, arg_type))
{
CORE_ADDR addr;
int len; /* = TYPE_LENGTH (arg_type); */
int aligned_len;
arg_type = check_typedef (VALUE_ENCLOSING_TYPE (args[i]));
len = TYPE_LENGTH (arg_type);
if (REG_STRUCT_HAS_ADDR_P ())
{
/* This is a machine like the sparc, where we may need to pass a
pointer to the structure, not the structure itself. */
for (i = nargs - 1; i >= 0; i--)
{
struct type *arg_type = check_typedef (VALUE_TYPE (args[i]));
if ((TYPE_CODE (arg_type) == TYPE_CODE_STRUCT
|| TYPE_CODE (arg_type) == TYPE_CODE_UNION
|| TYPE_CODE (arg_type) == TYPE_CODE_ARRAY
|| TYPE_CODE (arg_type) == TYPE_CODE_STRING
|| TYPE_CODE (arg_type) == TYPE_CODE_BITSTRING
|| TYPE_CODE (arg_type) == TYPE_CODE_SET
|| (TYPE_CODE (arg_type) == TYPE_CODE_FLT
&& TYPE_LENGTH (arg_type) > 8)
)
&& REG_STRUCT_HAS_ADDR (using_gcc, arg_type))
{
CORE_ADDR addr;
int len; /* = TYPE_LENGTH (arg_type); */
int aligned_len;
arg_type = check_typedef (VALUE_ENCLOSING_TYPE (args[i]));
len = TYPE_LENGTH (arg_type);
if (STACK_ALIGN_P ())
/* MVS 11/22/96: I think at least some of this
stack_align code is really broken. Better to let
PUSH_ARGUMENTS adjust the stack in a target-defined
manner. */
aligned_len = STACK_ALIGN (len);
else
aligned_len = len;
if (INNER_THAN (1, 2))
{
/* stack grows downward */
sp -= aligned_len;
}
else
{
/* The stack grows up, so the address of the thing
we push is the stack pointer before we push it. */
addr = sp;
}
/* Push the structure. */
write_memory (sp, VALUE_CONTENTS_ALL (args[i]), len);
if (INNER_THAN (1, 2))
{
/* The stack grows down, so the address of the thing
we push is the stack pointer after we push it. */
addr = sp;
}
else
{
/* stack grows upward */
sp += aligned_len;
}
/* The value we're going to pass is the address of the
thing we just pushed. */
/*args[i] = value_from_longest (lookup_pointer_type (value_type),
(LONGEST) addr); */
args[i] = value_from_pointer (lookup_pointer_type (arg_type),
addr);
}
}
}
if (STACK_ALIGN_P ())
/* MVS 11/22/96: I think at least some of this
stack_align code is really broken. Better to let
PUSH_ARGUMENTS adjust the stack in a target-defined
manner. */
aligned_len = STACK_ALIGN (len);
else
aligned_len = len;
if (INNER_THAN (1, 2))
{
/* stack grows downward */
sp -= aligned_len;
}
else
{
/* The stack grows up, so the address of the thing we push
is the stack pointer before we push it. */
addr = sp;
}
/* Push the structure. */
write_memory (sp, VALUE_CONTENTS_ALL (args[i]), len);
if (INNER_THAN (1, 2))
{
/* The stack grows down, so the address of the thing we push
is the stack pointer after we push it. */
addr = sp;
}
else
{
/* stack grows upward */
sp += aligned_len;
}
/* The value we're going to pass is the address of the thing
we just pushed. */
/*args[i] = value_from_longest (lookup_pointer_type (value_type),
(LONGEST) addr); */
args[i] = value_from_pointer (lookup_pointer_type (arg_type),
addr);
}
}
}
#endif /* REG_STRUCT_HAS_ADDR. */
/* Reserve space for the return structure to be written on the
stack, if necessary */