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Clean up the D10V port so that GDB and the target program no

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longer disagree on how big pointers are.
* findvar.c (value_from_register): Remove special case code for D10V.
* printcmd.c (print_frame_args): Same.
* valops.c (value_at, value_fetch_lazy): Same.
* values.c (unpack_long): Same.
* gdbarch.sh: Changes to effect the following:
* gdbarch.h (GDB_TARGET_IS_D10V, D10V_MAKE_DADDR,
gdbarch_d10v_make_daddr_ftype, gdbarch_d10v_make_daddr,
set_gdbarch_d10v_make_daddr, D10V_MAKE_IADDR,
gdbarch_d10v_make_iaddr_ftype, gdbarch_d10v_make_iaddr,
set_gdbarch_d10v_make_iaddr, D10V_DADDR_P,
gdbarch_d10v_daddr_p_ftype, gdbarch_d10v_daddr_p,
set_gdbarch_d10v_daddr_p, D10V_IADDR_P,
gdbarch_d10v_iaddr_p_ftype, gdbarch_d10v_iaddr_p,
set_gdbarch_d10v_iaddr_p, D10V_CONVERT_DADDR_TO_RAW,
gdbarch_d10v_convert_daddr_to_raw_ftype,
gdbarch_d10v_convert_daddr_to_raw,
set_gdbarch_d10v_convert_daddr_to_raw, D10V_CONVERT_IADDR_TO_RAW,
gdbarch_d10v_convert_iaddr_to_raw_ftype,
gdbarch_d10v_convert_iaddr_to_raw,
set_gdbarch_d10v_convert_iaddr_to_raw): Delete declarations.
* gdbarch.c: Delete the corresponding definitions.
(struct gdbarch): Delete members d10v_make_daddr,
d10v_make_iaddr, d10v_daddr_p, d10v_iaddr_p,
d10v_convert_daddr_to_raw, and d10v_convert_iaddr_to_raw.
(startup_gdbarch): Remove initializers for the above.
(verify_gdbarch, gdbarch_dump): Don't verify or dump them any
more.
* d10v-tdep.c (d10v_register_virtual_type): Rather that
claiming the stack pointer and PC are 32 bits long (which they
aren't), say that the stack pointer is an int16_t, and the
program counter is a function pointer.  This allows the rest
of GDB to make the appropriate conversions between the code
pointer format and real addresses.
(d10v_register_convertible, d10v_register_convert_to_virtual,
d10v_register_convert_to_raw): Delete function; no registers
are convertible now, so we use
generic_register_convertible_not instead.
(d10v_address_to_pointer, d10v_pointer_to_address): New gdbarch
methods.
(d10v_push_arguments, d10v_extract_return_value): Remove special
cases for code and data pointers.
(d10v_gdbarch_init): Set gdbarch_ptr_bit to 16, so that GDB and
the target agree on how large pointers are.  Say that addresses
are 32 bits long.  Register the address_to_pointer and
pointer_to_address conversion functions.  Since no registers are
convertible now, register generic_register_convertible_not as the
gdbarch_register_convertible method instead of
d10v_register_convertible.  Remove registrations for
d10v_register_convert_to_virtual,
d10v_register_convert_to_raw, gdbarch_d10v_make_daddr,
gdbarch_d10v_make_iaddr, gdbarch_d10v_daddr_p,
gdbarch_d10v_iaddr_p, gdbarch_d10v_convert_daddr_to_raw, and
gdbarch_d10v_convert_iaddr_to_raw.
This commit is contained in:
Jim Blandy
2001-07-10 21:24:48 +00:00
parent ef166cf46a
commit 75af7f6801
9 changed files with 107 additions and 503 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
gdb/valops.c
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@@ -474,30 +474,7 @@ value_at (struct type *type, CORE_ADDR addr, asection *sect)
val = allocate_value (type);
if (GDB_TARGET_IS_D10V
&& TYPE_CODE (type) == TYPE_CODE_PTR
&& TYPE_TARGET_TYPE (type)
&& (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
{
/* pointer to function */
unsigned long num;
unsigned short snum;
snum = read_memory_unsigned_integer (addr, 2);
num = D10V_MAKE_IADDR (snum);
store_address (VALUE_CONTENTS_RAW (val), 4, num);
}
else if (GDB_TARGET_IS_D10V
&& TYPE_CODE (type) == TYPE_CODE_PTR)
{
/* pointer to data */
unsigned long num;
unsigned short snum;
snum = read_memory_unsigned_integer (addr, 2);
num = D10V_MAKE_DADDR (snum);
store_address (VALUE_CONTENTS_RAW (val), 4, num);
}
else
read_memory (addr, VALUE_CONTENTS_ALL_RAW (val), TYPE_LENGTH (type));
read_memory (addr, VALUE_CONTENTS_ALL_RAW (val), TYPE_LENGTH (type));
VALUE_LVAL (val) = lval_memory;
VALUE_ADDRESS (val) = addr;
@@ -545,29 +522,7 @@ value_fetch_lazy (register value_ptr val)
int length = TYPE_LENGTH (VALUE_ENCLOSING_TYPE (val));
struct type *type = VALUE_TYPE (val);
if (GDB_TARGET_IS_D10V
&& TYPE_CODE (type) == TYPE_CODE_PTR
&& TYPE_TARGET_TYPE (type)
&& (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
{
/* pointer to function */
unsigned long num;
unsigned short snum;
snum = read_memory_unsigned_integer (addr, 2);
num = D10V_MAKE_IADDR (snum);
store_address (VALUE_CONTENTS_RAW (val), 4, num);
}
else if (GDB_TARGET_IS_D10V
&& TYPE_CODE (type) == TYPE_CODE_PTR)
{
/* pointer to data */
unsigned long num;
unsigned short snum;
snum = read_memory_unsigned_integer (addr, 2);
num = D10V_MAKE_DADDR (snum);
store_address (VALUE_CONTENTS_RAW (val), 4, num);
}
else if (length)
if (length)
read_memory (addr, VALUE_CONTENTS_ALL_RAW (val), length);
VALUE_LAZY (val) = 0;