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-rw-r--r--gdb/i386-tdep.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 421a7a0..39990db 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -761,6 +761,32 @@ i386_extract_return_value (struct type *type, char *regbuf, char *valbuf)
}
}
+/* Convert data from raw format for register REGNUM in buffer FROM to
+ virtual format with type TYPE in buffer TO. In principle both
+ formats are identical except that the virtual format has two extra
+ bytes appended that aren't used. We set these to zero. */
+
+void
+i386_register_convert_to_virtual (int regnum, struct type *type,
+ char *from, char *to)
+{
+ /* Copy straight over, but take care of the padding. */
+ memcpy (to, from, FPU_REG_RAW_SIZE);
+ memset (to + FPU_REG_RAW_SIZE, 0, TYPE_LENGTH (type) - FPU_REG_RAW_SIZE);
+}
+
+/* Convert data from virtual format with type TYPE in buffer FROM to
+ raw format for register REGNUM in buffer TO. Simply omit the two
+ unused bytes. */
+
+void
+i386_register_convert_to_raw (struct type *type, int regnum,
+ char *from, char *to)
+{
+ memcpy (to, from, FPU_REG_RAW_SIZE);
+}
+
+
#ifdef I386V4_SIGTRAMP_SAVED_PC
/* Get saved user PC for sigtramp from the pushed ucontext on the stack
for all three variants of SVR4 sigtramps. */