+ write_register (lrnum++, read_register (NPC_REGNUM));
+ write_register (lrnum++, read_register (PC2_REGNUM));
+
+ /* Why are we saving LR0? What would clobber it? (the dummy frame should
+ be below it on the register stack, no?). */
+ write_register (lrnum++, original_lr0);
+}
+
+
+
+/*
+ This routine takes three arguments and makes the cached frames look
+ as if these arguments defined a frame on the cache. This allows the
+ rest of `info frame' to extract the important arguments without much
+ difficulty. Since an individual frame on the 29K is determined by
+ three values (FP, PC, and MSP), we really need all three to do a
+ good job. */
+
+struct frame_info *
+setup_arbitrary_frame (argc, argv)
+ int argc;
+ CORE_ADDR *argv;
+{
+ struct frame_info *frame;
+
+ if (argc != 3)
+ error ("AMD 29k frame specifications require three arguments: rsp pc msp");
+
+ frame = create_new_frame (argv[0], argv[1]);
+
+ if (!frame)
+ fatal ("internal: create_new_frame returned invalid frame id");
+
+ /* Creating a new frame munges the `frame' value from the current
+ GR1, so we restore it again here. FIXME, untangle all this
+ 29K frame stuff... */
+ frame->frame = argv[0];
+
+ /* Our MSP is in argv[2]. It'd be intelligent if we could just
+ save this value in the FRAME. But the way it's set up (FIXME),
+ we must save our caller's MSP. We compute that by adding our
+ memory stack frame size to our MSP. */
+ frame->saved_msp = argv[2] + frame->msize;
+
+ return frame;
+}
+
+int
+gdb_print_insn_a29k (memaddr, info)
+ bfd_vma memaddr;
+ disassemble_info *info;
+{
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ return print_insn_big_a29k (memaddr, info);
+ else
+ return print_insn_little_a29k (memaddr, info);
+}
+
+enum a29k_processor_types processor_type = a29k_unknown;
+
+void
+a29k_get_processor_type ()
+{
+ unsigned int cfg_reg = (unsigned int) read_register (CFG_REGNUM);
+
+ /* Most of these don't have freeze mode. */
+ processor_type = a29k_no_freeze_mode;
+
+ switch ((cfg_reg >> 28) & 0xf)
+ {
+ case 0:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am29000");
+ break;
+ case 1:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am29005");
+ break;
+ case 2:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am29050");
+ processor_type = a29k_freeze_mode;
+ break;
+ case 3:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am29035");
+ break;
+ case 4:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am29030");
+ break;
+ case 5:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am2920*");
+ break;
+ case 6:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am2924*");
+ break;
+ case 7:
+ fprintf_filtered (gdb_stderr, "Remote debugging an Am29040");
+ break;
+ default:
+ fprintf_filtered (gdb_stderr, "Remote debugging an unknown Am29k\n");
+ /* Don't bother to print the revision. */
+ return;
+ }
+ fprintf_filtered (gdb_stderr, " revision %c\n", 'A' + ((cfg_reg >> 24) & 0x0f));
projects / binutils.git / blobdiff