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2003-10-20 Andrew Cagney <cagney@redhat.com>

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* values.c (register_value_being_returned): Update comments.  Use
	"gdbarch_return_value" when available.
	(using_struct_return): Ditto.
	(set_return_value): Ditto.  Use "gdbarch_return_value" when
	available..  Print a warning, and not an error, when an unhandled
	return type is encountered.
	* infcmd.c: Include "gdb_assert.h".
	(print_return_value): When gdbarch_return_value_p, and using
	struct return, assume that the value is not available.
	* defs.h (return_value_convention): Define.
	* gdbarch.sh (gdbarch_return_value): New predicate method.
	* gdbarch.h, gdbarch.c: Re-generate
	* ppc-sysv-tdep.c (return_value_convention): Delete definition.

Index: doc/ChangeLog
2003-10-20  Andrew Cagney  <cagney@redhat.com>

	* gdbint.texinfo (Target Architecture Definition): Document
	gdbarch_return_value.  Add cross references from
	USE_STRUCT_CONVENTION, EXTRACT_RETURN_VALUE, and
	STORE_RETURN_VALUE, and from/to EXTRACT_STRUCT_VALUE_ADDRESS.
This commit is contained in:
Andrew Cagney
2003-10-20 15:38:02 +00:00
parent 198beae2cf
commit 92ad9cd90f
10 changed files with 329 additions and 113 deletions
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58
gdb/gdbarch.h
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@@ -1392,16 +1392,6 @@ extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_int
#define INTEGER_TO_ADDRESS(type, buf) (gdbarch_integer_to_address (current_gdbarch, type, buf))
#endif
typedef int (gdbarch_return_value_on_stack_ftype) (struct type *type);
extern int gdbarch_return_value_on_stack (struct gdbarch *gdbarch, struct type *type);
extern void set_gdbarch_return_value_on_stack (struct gdbarch *gdbarch, gdbarch_return_value_on_stack_ftype *return_value_on_stack);
#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (RETURN_VALUE_ON_STACK)
#error "Non multi-arch definition of RETURN_VALUE_ON_STACK"
#endif
#if !defined (RETURN_VALUE_ON_STACK)
#define RETURN_VALUE_ON_STACK(type) (gdbarch_return_value_on_stack (current_gdbarch, type))
#endif
#if defined (DEPRECATED_POP_FRAME)
/* Legacy for systems yet to multi-arch DEPRECATED_POP_FRAME */
#if !defined (DEPRECATED_POP_FRAME_P)
@@ -1454,6 +1444,34 @@ extern void set_gdbarch_deprecated_store_struct_return (struct gdbarch *gdbarch,
#define DEPRECATED_STORE_STRUCT_RETURN(addr, sp) (gdbarch_deprecated_store_struct_return (current_gdbarch, addr, sp))
#endif
/* It has been suggested that this, well actually its predecessor,
should take the type/value of the function to be called and not the
return type. This is left as an exercise for the reader. */
extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, const void *inval, void *outval);
extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, const void *inval, void *outval);
extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
/* The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
into RETURN_VALUE. For the moment do not try to fold in
EXTRACT_STRUCT_VALUE_ADDRESS as, dependant on the ABI, the debug
info, and the level of effort, it may well be possible to find the
address of a structure being return on the stack. Someone else can
make that change. */
typedef int (gdbarch_return_value_on_stack_ftype) (struct type *type);
extern int gdbarch_return_value_on_stack (struct gdbarch *gdbarch, struct type *type);
extern void set_gdbarch_return_value_on_stack (struct gdbarch *gdbarch, gdbarch_return_value_on_stack_ftype *return_value_on_stack);
#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (RETURN_VALUE_ON_STACK)
#error "Non multi-arch definition of RETURN_VALUE_ON_STACK"
#endif
#if !defined (RETURN_VALUE_ON_STACK)
#define RETURN_VALUE_ON_STACK(type) (gdbarch_return_value_on_stack (current_gdbarch, type))
#endif
typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, void *valbuf);
extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, void *valbuf);
extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
@@ -1494,6 +1512,16 @@ extern void set_gdbarch_deprecated_store_return_value (struct gdbarch *gdbarch,
#define DEPRECATED_STORE_RETURN_VALUE(type, valbuf) (gdbarch_deprecated_store_return_value (current_gdbarch, type, valbuf))
#endif
typedef int (gdbarch_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
extern int gdbarch_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
extern void set_gdbarch_use_struct_convention (struct gdbarch *gdbarch, gdbarch_use_struct_convention_ftype *use_struct_convention);
#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (USE_STRUCT_CONVENTION)
#error "Non multi-arch definition of USE_STRUCT_CONVENTION"
#endif
#if !defined (USE_STRUCT_CONVENTION)
#define USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_use_struct_convention (current_gdbarch, gcc_p, value_type))
#endif
#if defined (EXTRACT_STRUCT_VALUE_ADDRESS)
/* Legacy for systems yet to multi-arch EXTRACT_STRUCT_VALUE_ADDRESS */
#if !defined (EXTRACT_STRUCT_VALUE_ADDRESS_P)
@@ -1544,16 +1572,6 @@ extern void set_gdbarch_deprecated_extract_struct_value_address (struct gdbarch
#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regbuf) (gdbarch_deprecated_extract_struct_value_address (current_gdbarch, regbuf))
#endif
typedef int (gdbarch_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
extern int gdbarch_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
extern void set_gdbarch_use_struct_convention (struct gdbarch *gdbarch, gdbarch_use_struct_convention_ftype *use_struct_convention);
#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (USE_STRUCT_CONVENTION)
#error "Non multi-arch definition of USE_STRUCT_CONVENTION"
#endif
#if !defined (USE_STRUCT_CONVENTION)
#define USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_use_struct_convention (current_gdbarch, gcc_p, value_type))
#endif
#if defined (DEPRECATED_FRAME_INIT_SAVED_REGS)
/* Legacy for systems yet to multi-arch DEPRECATED_FRAME_INIT_SAVED_REGS */
#if !defined (DEPRECATED_FRAME_INIT_SAVED_REGS_P)