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-rw-r--r--gdb/ChangeLog11
-rw-r--r--gdb/doublest.c5
-rw-r--r--gdb/gdbarch.c47
-rw-r--r--gdb/gdbarch.h12
-rwxr-xr-xgdb/gdbarch.sh8
-rw-r--r--gdb/gdbtypes.c4
-rw-r--r--gdb/gdbtypes.h1
-rw-r--r--include/ChangeLog5
-rw-r--r--include/floatformat.h2
-rw-r--r--libiberty/ChangeLog5
-rw-r--r--libiberty/floatformat.c18
11 files changed, 110 insertions, 8 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 061bf55..375f055 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,14 @@
+2010-07-06 Ken Werner <ken.werner@de.ibm.com>
+
+ * gdbtypes.h (floatformats_ieee_half): Add declaration.
+ * gdbtypes.c (floatformats_ieee_half): New variable.
+ * doublest.c (floatformat_from_length): Set format to
+ gdbarch_half_format if length matches.
+ * gdbarch.sh (half_bit): New architecture method.
+ (half_format): Likewise.
+ * gdbarch.h: Regenerate.
+ * gdbarch.c: Likewise.
+
2010-07-05 Jan Kratochvil <jan.kratochvil@redhat.com>
Joel Brobecker <brobecker@adacore.com>
diff --git a/gdb/doublest.c b/gdb/doublest.c
index 0dc09ab..7e8b343 100644
--- a/gdb/doublest.c
+++ b/gdb/doublest.c
@@ -777,7 +777,10 @@ floatformat_from_length (struct gdbarch *gdbarch, int len)
{
const struct floatformat *format;
- if (len * TARGET_CHAR_BIT == gdbarch_float_bit (gdbarch))
+ if (len * TARGET_CHAR_BIT == gdbarch_half_bit (gdbarch))
+ format = gdbarch_half_format (gdbarch)
+ [gdbarch_byte_order (gdbarch)];
+ else if (len * TARGET_CHAR_BIT == gdbarch_float_bit (gdbarch))
format = gdbarch_float_format (gdbarch)
[gdbarch_byte_order (gdbarch)];
else if (len * TARGET_CHAR_BIT == gdbarch_double_bit (gdbarch))
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index bf41ab3..103abcb 100644
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -145,6 +145,8 @@ struct gdbarch
int int_bit;
int long_bit;
int long_long_bit;
+ int half_bit;
+ const struct floatformat ** half_format;
int float_bit;
const struct floatformat ** float_format;
int double_bit;
@@ -293,6 +295,8 @@ struct gdbarch startup_gdbarch =
8 * sizeof (int), /* int_bit */
8 * sizeof (long), /* long_bit */
8 * sizeof (LONGEST), /* long_long_bit */
+ 16, /* half_bit */
+ 0, /* half_format */
8 * sizeof (float), /* float_bit */
0, /* float_format */
8 * sizeof (double), /* double_bit */
@@ -451,6 +455,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
gdbarch->int_bit = 4*TARGET_CHAR_BIT;
gdbarch->long_bit = 4*TARGET_CHAR_BIT;
gdbarch->long_long_bit = 2*gdbarch->long_bit;
+ gdbarch->half_bit = 2*TARGET_CHAR_BIT;
gdbarch->float_bit = 4*TARGET_CHAR_BIT;
gdbarch->double_bit = 8*TARGET_CHAR_BIT;
gdbarch->long_double_bit = 8*TARGET_CHAR_BIT;
@@ -562,6 +567,9 @@ verify_gdbarch (struct gdbarch *gdbarch)
/* Skip verify of int_bit, invalid_p == 0 */
/* Skip verify of long_bit, invalid_p == 0 */
/* Skip verify of long_long_bit, invalid_p == 0 */
+ /* Skip verify of half_bit, invalid_p == 0 */
+ if (gdbarch->half_format == 0)
+ gdbarch->half_format = floatformats_ieee_half;
/* Skip verify of float_bit, invalid_p == 0 */
if (gdbarch->float_format == 0)
gdbarch->float_format = floatformats_ieee_single;
@@ -935,6 +943,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
"gdbarch_dump: get_syscall_number = <%s>\n",
host_address_to_string (gdbarch->get_syscall_number));
fprintf_unfiltered (file,
+ "gdbarch_dump: half_bit = %s\n",
+ plongest (gdbarch->half_bit));
+ fprintf_unfiltered (file,
+ "gdbarch_dump: half_format = %s\n",
+ pformat (gdbarch->half_format));
+ fprintf_unfiltered (file,
"gdbarch_dump: has_dos_based_file_system = %s\n",
plongest (gdbarch->has_dos_based_file_system));
fprintf_unfiltered (file,
@@ -1375,6 +1389,39 @@ set_gdbarch_long_long_bit (struct gdbarch *gdbarch,
}
int
+gdbarch_half_bit (struct gdbarch *gdbarch)
+{
+ gdb_assert (gdbarch != NULL);
+ /* Skip verify of half_bit, invalid_p == 0 */
+ if (gdbarch_debug >= 2)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_half_bit called\n");
+ return gdbarch->half_bit;
+}
+
+void
+set_gdbarch_half_bit (struct gdbarch *gdbarch,
+ int half_bit)
+{
+ gdbarch->half_bit = half_bit;
+}
+
+const struct floatformat **
+gdbarch_half_format (struct gdbarch *gdbarch)
+{
+ gdb_assert (gdbarch != NULL);
+ if (gdbarch_debug >= 2)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_half_format called\n");
+ return gdbarch->half_format;
+}
+
+void
+set_gdbarch_half_format (struct gdbarch *gdbarch,
+ const struct floatformat ** half_format)
+{
+ gdbarch->half_format = half_format;
+}
+
+int
gdbarch_float_bit (struct gdbarch *gdbarch)
{
gdb_assert (gdbarch != NULL);
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index e0c933c..cfc777e 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -118,12 +118,18 @@ extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
-/* The ABI default bit-size and format for "float", "double", and "long
- double". These bit/format pairs should eventually be combined into
- a single object. For the moment, just initialize them as a pair.
+/* The ABI default bit-size and format for "half", "float", "double", and
+ "long double". These bit/format pairs should eventually be combined
+ into a single object. For the moment, just initialize them as a pair.
Each format describes both the big and little endian layouts (if
useful). */
+extern int gdbarch_half_bit (struct gdbarch *gdbarch);
+extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit);
+
+extern const struct floatformat ** gdbarch_half_format (struct gdbarch *gdbarch);
+extern void set_gdbarch_half_format (struct gdbarch *gdbarch, const struct floatformat ** half_format);
+
extern int gdbarch_float_bit (struct gdbarch *gdbarch);
extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index 1e9a489..eece393 100755
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -363,12 +363,14 @@ v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
# machine.
v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
-# The ABI default bit-size and format for "float", "double", and "long
-# double". These bit/format pairs should eventually be combined into
-# a single object. For the moment, just initialize them as a pair.
+# The ABI default bit-size and format for "half", "float", "double", and
+# "long double". These bit/format pairs should eventually be combined
+# into a single object. For the moment, just initialize them as a pair.
# Each format describes both the big and little endian layouts (if
# useful).
+v:int:half_bit:::16:2*TARGET_CHAR_BIT::0
+v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index ba8c7e4..443f6f7 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -42,6 +42,10 @@
/* Floatformat pairs. */
+const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = {
+ &floatformat_ieee_half_big,
+ &floatformat_ieee_half_little
+};
const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = {
&floatformat_ieee_single_big,
&floatformat_ieee_single_little
diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
index 2a9bc9b..085270e 100644
--- a/gdb/gdbtypes.h
+++ b/gdb/gdbtypes.h
@@ -1191,6 +1191,7 @@ extern const struct objfile_type *objfile_type (struct objfile *objfile);
/* Explicit floating-point formats. See "floatformat.h". */
+extern const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN];
extern const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN];
extern const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN];
extern const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN];
diff --git a/include/ChangeLog b/include/ChangeLog
index 4fb2a44..91b2edb 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-06 Ken Werner <ken.werner@de.ibm.com>
+
+ * floatformat.h (floatformat_ieee_half_big): Add declaration.
+ (floatformat_ieee_half_little): Likewise.
+
2010-06-29 Alan Modra <amodra@gmail.com>
* dis-asm.h: Remove references to maxq.
diff --git a/include/floatformat.h b/include/floatformat.h
index c5f60a3..0fc8e75 100644
--- a/include/floatformat.h
+++ b/include/floatformat.h
@@ -96,6 +96,8 @@ struct floatformat
/* floatformats for IEEE single and double, big and little endian. */
+extern const struct floatformat floatformat_ieee_half_big;
+extern const struct floatformat floatformat_ieee_half_little;
extern const struct floatformat floatformat_ieee_single_big;
extern const struct floatformat floatformat_ieee_single_little;
extern const struct floatformat floatformat_ieee_double_big;
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index a16e393..1b1610b 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-06 Ken Werner <ken.werner@de.ibm.com>
+
+ * floatformat.c (floatformat_ieee_half_big): New variable.
+ (floatformat_ieee_half_little): Likewise.
+
2010-06-14 Gerald Pfeifer <gerald@pfeifer.com>
* libiberty.texi: Remove reference to GCC 3 and 2001 (thrice).
diff --git a/libiberty/floatformat.c b/libiberty/floatformat.c
index cbf13ea..4819507 100644
--- a/libiberty/floatformat.c
+++ b/libiberty/floatformat.c
@@ -77,7 +77,23 @@ floatformat_always_valid (const struct floatformat *fmt ATTRIBUTE_UNUSED,
a system header, what we do if not, etc. */
#define FLOATFORMAT_CHAR_BIT 8
-/* floatformats for IEEE single and double, big and little endian. */
+/* floatformats for IEEE half, single and double, big and little endian. */
+const struct floatformat floatformat_ieee_half_big =
+{
+ floatformat_big, 16, 0, 1, 5, 15, 31, 6, 10,
+ floatformat_intbit_no,
+ "floatformat_ieee_half_big",
+ floatformat_always_valid,
+ NULL
+};
+const struct floatformat floatformat_ieee_half_little =
+{
+ floatformat_little, 16, 0, 1, 5, 15, 31, 6, 10,
+ floatformat_intbit_no,
+ "floatformat_ieee_half_little",
+ floatformat_always_valid,
+ NULL
+};
const struct floatformat floatformat_ieee_single_big =
{
floatformat_big, 32, 0, 1, 8, 127, 255, 9, 23,
generated by cgit v1.1 at 2024-11-16 16:11:37 +0000