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* dwarf2-frame.c (struct dwarf2_cie): Add ptr_size member.

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Throughout, call read_encoded_value with ptr_size rather than addr_size.
	(decode_frame_entry_1): Remove redundant setting of
	addr_size.  Call gdbarch_dwarf2_addr_size rather than gdbarch_ptr_bit
	to determine addr_size in Dwarf versions < 4.  Set ptr_size dependent
	on examined frame section.  Add comment to explain why.
	* gdbarch.sh (dwarf2_addr_size): Define as variable.  Add lengthy
	comment to explain usage.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Regenerate.

	* xstormy16-tdep.c (xstormy16_gdbarch_init): Set dwarf2_addr_size to 4.
This commit is contained in:
Corinna Vinschen
2010-08-06 19:02:15 +00:00
parent 2210942396
commit 8da614df64
6 changed files with 93 additions and 16 deletions
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25
gdb/gdbarch.c
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@@ -155,6 +155,7 @@ struct gdbarch
const struct floatformat ** long_double_format;
int ptr_bit;
int addr_bit;
int dwarf2_addr_size;
int char_signed;
gdbarch_read_pc_ftype *read_pc;
gdbarch_write_pc_ftype *write_pc;
@@ -305,6 +306,7 @@ struct gdbarch startup_gdbarch =
0, /* long_double_format */
8 * sizeof (void*), /* ptr_bit */
8 * sizeof (void*), /* addr_bit */
sizeof (void*), /* dwarf2_addr_size */
1, /* char_signed */
0, /* read_pc */
0, /* write_pc */
@@ -582,6 +584,8 @@ verify_gdbarch (struct gdbarch *gdbarch)
/* Skip verify of ptr_bit, invalid_p == 0 */
if (gdbarch->addr_bit == 0)
gdbarch->addr_bit = gdbarch_ptr_bit (gdbarch);
if (gdbarch->dwarf2_addr_size == 0)
gdbarch->dwarf2_addr_size = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
if (gdbarch->char_signed == -1)
gdbarch->char_signed = 1;
/* Skip verify of read_pc, has predicate */
@@ -867,6 +871,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
fprintf_unfiltered (file,
"gdbarch_dump: dummy_id = <%s>\n",
host_address_to_string (gdbarch->dummy_id));
fprintf_unfiltered (file,
"gdbarch_dump: dwarf2_addr_size = %s\n",
plongest (gdbarch->dwarf2_addr_size));
fprintf_unfiltered (file,
"gdbarch_dump: dwarf2_reg_to_regnum = <%s>\n",
host_address_to_string (gdbarch->dwarf2_reg_to_regnum));
@@ -1555,6 +1562,24 @@ set_gdbarch_addr_bit (struct gdbarch *gdbarch,
gdbarch->addr_bit = addr_bit;
}
int
gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch)
{
gdb_assert (gdbarch != NULL);
/* Check variable changed from pre-default. */
gdb_assert (gdbarch->dwarf2_addr_size != 0);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_dwarf2_addr_size called\n");
return gdbarch->dwarf2_addr_size;
}
void
set_gdbarch_dwarf2_addr_size (struct gdbarch *gdbarch,
int dwarf2_addr_size)
{
gdbarch->dwarf2_addr_size = dwarf2_addr_size;
}
int
gdbarch_char_signed (struct gdbarch *gdbarch)
{