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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
commit85fe8b8ad9bf4fed7aa952c7f358dd25b072924e (patch)
tree1aa70b0b95986f0d402cbe89748d1c1764549b19 /gdb/i387-tdep.c
parenta15678e2da0d6cf2d92bac1ddaba70459026bb9e (diff)
downloadgdb-85fe8b8ad9bf4fed7aa952c7f358dd25b072924e.tar.gz
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/i387-tdep.c')
-rw-r--r--gdb/i387-tdep.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/gdb/i387-tdep.c b/gdb/i387-tdep.c
index 20e446d2ff4..f887da95b26 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