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authorMark Kettenis <kettenis@gnu.org>2000-04-12 00:22:56 +0000
committerMark Kettenis <kettenis@gnu.org>2000-04-12 00:22:56 +0000
commit1d77867f997863c81debc79e048b0abffe2fe646 (patch)
tree14b14b5d612fcb84d376d9856516ed4d29c0f9ca /gdb
parent7df5277ad68206c9102d43427639ae6328d033f9 (diff)
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2000-04-12 Mark Kettenis <kettenis@gnu.org>
* i387-tdep.c (print_i387_value): Avoid call to floatformat_to_doublest if long double type is the same on host and target.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/i387-tdep.c17
2 files changed, 21 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index fe7f09a..8a4824d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2000-04-12 Mark Kettenis <kettenis@gnu.org>
+
+ * i387-tdep.c (print_i387_value): Avoid call to
+ floatformat_to_doublest if long double type is the same on host
+ and target.
+
2000-04-11 Fernando Nasser <fnasser@cygnus.com>
* wrapper.h: Remove definitions of internal functions.
diff --git a/gdb/i387-tdep.c b/gdb/i387-tdep.c
index 20e446d..f887da9 100644
--- a/gdb/i387-tdep.c
+++ b/gdb/i387-tdep.c
@@ -166,8 +166,21 @@ static void
print_i387_value (char *raw)
{
DOUBLEST value;
-
- floatformat_to_doublest (&floatformat_i387_ext, raw, &value);
+
+ /* Avoid call to floatformat_to_doublest if possible to preserve as
+ much information as possible. */
+
+#ifdef HAVE_LONG_DOUBLE
+ if (sizeof (value) == sizeof (long double)
+ && HOST_LONG_DOUBLE_FORMAT == &floatformat_i387_ext)
+ {
+ /* Copy straight over, but take care of the padding. */
+ memcpy (&value, raw, FPU_REG_RAW_SIZE);
+ memset (&value + FPU_REG_RAW_SIZE, 0, sizeof (value) - FPU_REG_RAW_SIZE);
+ }
+ else
+#endif
+ floatformat_to_doublest (&floatformat_i387_ext, raw, &value);
/* We try to print 19 digits. The last digit may or may not contain
garbage, but we'd better print one too many. We need enough room