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authorJason Thorpe <thorpej@netbsd.org>2002-05-26 22:27:01 +0000
committerJason Thorpe <thorpej@netbsd.org>2002-05-26 22:27:01 +0000
commit7bcc927b94b3131adaa192e6d4cfe4d49ae78bf8 (patch)
tree317ae3f4ce731c1fbda38bd0f2a6d051352307b3 /gdb/ns32k-tdep.c
parent78f9d7654ada5b567f031f3f3463fac834b9259f (diff)
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* ns32k-tdep.c (ns32k_call_dummy_words, sizeof_ns32k_call_dummy_words,
ns32k_fix_call_dummy): New. * config/ns32k/tm-umax.h (CALL_DUMMY_WORDS): Define as ns32k_call_dummy_words. (SIZEOF_CALL_DUMMY_WORDS): Define as sizeof_ns32k_call_dummy_words. (CALL_DUMMY, CALL_DUMMY_LENGTH, CALL_DUMMY_ADDR, CALL_DUMMY_NARGS): Remove. (FIX_CALL_DUMMY): Define as ns32k_fix_call_dummy.
Diffstat (limited to 'gdb/ns32k-tdep.c')
-rw-r--r--gdb/ns32k-tdep.c39
1 files changed, 38 insertions, 1 deletions
diff --git a/gdb/ns32k-tdep.c b/gdb/ns32k-tdep.c
index 42c6456..66bce73 100644
--- a/gdb/ns32k-tdep.c
+++ b/gdb/ns32k-tdep.c
@@ -26,6 +26,7 @@
static int sign_extend (int value, int bits);
static CORE_ADDR ns32k_get_enter_addr (CORE_ADDR);
static int ns32k_localcount (CORE_ADDR enter_pc);
+static void flip_bytes (void *, int);
char *
ns32k_register_name_32082 (int regno)
@@ -203,7 +204,7 @@ sign_extend (int value, int bits)
: value);
}
-void
+static void
flip_bytes (void *p, int count)
{
char tmp;
@@ -395,8 +396,44 @@ ns32k_pop_frame (void)
write_register (SP_REGNUM, fp + 8);
flush_cached_frames ();
}
+
+/* The NS32000 call dummy sequence:
+
+ enter 0xff,0 82 ff 00
+ jsr @0x00010203 7f ae c0 01 02 03
+ adjspd 0x69696969 7f a5 01 02 03 04
+ bpt f2
+
+ It is 16 bytes long. */
+
+LONGEST ns32k_call_dummy_words[] =
+{
+ 0x7f00ff82,
+ 0x0201c0ae,
+ 0x01a57f03,
+ 0xf2040302
+};
+int sizeof_ns32k_call_dummy_words = sizeof (ns32k_call_dummy_words);
+
+#define NS32K_CALL_DUMMY_ADDR 5
+#define NS32K_CALL_DUMMY_NARGS 11
void
+ns32k_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
+ struct value **args, struct type *type, int gcc_p)
+{
+ int flipped;
+
+ flipped = fun | 0xc0000000;
+ flip_bytes (&flipped, 4);
+ store_unsigned_integer (dummy + NS32K_CALL_DUMMY_ADDR, 4, flipped);
+
+ flipped = - nargs * 4;
+ flip_bytes (&flipped, 4);
+ store_unsigned_integer (dummy + NS32K_CALL_DUMMY_NARGS, 4, flipped);
+}
+
+void
_initialize_ns32k_tdep (void)
{
tm_print_insn = print_insn_ns32k;