| // OBSOLETE /* Parameters for execution on an HP PA-RISC machine running OSF1, for GDB. |
| // OBSOLETE Contributed by the Center for Software Science at the |
| // OBSOLETE University of Utah (pa-gdb-bugs@cs.utah.edu). */ |
| // OBSOLETE |
| // OBSOLETE #include "regcache.h" |
| // OBSOLETE |
| // OBSOLETE /* Define offsets to access CPROC stack when it does not have |
| // OBSOLETE * a kernel thread. |
| // OBSOLETE */ |
| // OBSOLETE #define MACHINE_CPROC_SP_OFFSET 20 |
| // OBSOLETE #define MACHINE_CPROC_PC_OFFSET 16 |
| // OBSOLETE #define MACHINE_CPROC_FP_OFFSET 12 |
| // OBSOLETE |
| // OBSOLETE /* |
| // OBSOLETE * Software defined PSW masks. |
| // OBSOLETE */ |
| // OBSOLETE #define PSW_SS 0x10000000 /* Kernel managed single step */ |
| // OBSOLETE |
| // OBSOLETE /* Thread flavors used in re-setting the T bit. |
| // OBSOLETE * @@ this is also bad for cross debugging. |
| // OBSOLETE */ |
| // OBSOLETE #define TRACE_FLAVOR HP800_THREAD_STATE |
| // OBSOLETE #define TRACE_FLAVOR_SIZE HP800_THREAD_STATE_COUNT |
| // OBSOLETE #define TRACE_SET(x,state) \ |
| // OBSOLETE ((struct hp800_thread_state *)state)->cr22 |= PSW_SS |
| // OBSOLETE #define TRACE_CLEAR(x,state) \ |
| // OBSOLETE ((((struct hp800_thread_state *)state)->cr22 &= ~PSW_SS), 1) |
| // OBSOLETE |
| // OBSOLETE /* For OSF1 (Should be close if not identical to BSD, but I haven't |
| // OBSOLETE tested it yet): |
| // OBSOLETE |
| // OBSOLETE The signal context structure pointer is always saved at the base |
| // OBSOLETE of the frame + 0x4. |
| // OBSOLETE |
| // OBSOLETE We get the PC & SP directly from the sigcontext structure itself. |
| // OBSOLETE For other registers we have to dive in a little deeper: |
| // OBSOLETE |
| // OBSOLETE The hardware save state pointer is at offset 0x10 within the |
| // OBSOLETE signal context structure. |
| // OBSOLETE |
| // OBSOLETE Within the hardware save state, registers are found in the same order |
| // OBSOLETE as the register numbers in GDB. */ |
| // OBSOLETE |
| // OBSOLETE #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \ |
| // OBSOLETE { \ |
| // OBSOLETE *(TMP) = read_memory_integer ((FRAME)->frame + 0x4, 4); \ |
| // OBSOLETE *(TMP) = read_memory_integer (*(TMP) + 0x18, 4); \ |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \ |
| // OBSOLETE { \ |
| // OBSOLETE *(TMP) = read_memory_integer ((FRAME)->frame + 0x4, 4); \ |
| // OBSOLETE *(TMP) = read_memory_integer (*(TMP) + 0x8, 4); \ |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \ |
| // OBSOLETE { \ |
| // OBSOLETE int i; \ |
| // OBSOLETE CORE_ADDR TMP; \ |
| // OBSOLETE TMP = read_memory_integer ((FRAME)->frame + 0x4, 4); \ |
| // OBSOLETE TMP = read_memory_integer (TMP + 0x10, 4); \ |
| // OBSOLETE for (i = 0; i < NUM_REGS; i++) \ |
| // OBSOLETE { \ |
| // OBSOLETE if (i == SP_REGNUM) \ |
| // OBSOLETE (FSR)->regs[SP_REGNUM] = read_memory_integer (TMP + SP_REGNUM * 4, 4); \ |
| // OBSOLETE else \ |
| // OBSOLETE (FSR)->regs[i] = TMP + i * 4; \ |
| // OBSOLETE } \ |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE /* OSF1 does not need the pc space queue restored. */ |
| // OBSOLETE #define NO_PC_SPACE_QUEUE_RESTORE |
| // OBSOLETE |
| // OBSOLETE /* The mach kernel uses the recovery counter to implement single |
| // OBSOLETE stepping. While this greatly simplifies the kernel support |
| // OBSOLETE necessary for single stepping, it unfortunately does the wrong |
| // OBSOLETE thing in the presense of a nullified instruction (gives control |
| // OBSOLETE back two insns after the nullifed insn). This is an artifact |
| // OBSOLETE of the HP architecture (recovery counter doesn't tick for |
| // OBSOLETE nullified insns). |
| // OBSOLETE |
| // OBSOLETE Do our best to avoid losing in such situations. */ |
| // OBSOLETE #define INSTRUCTION_NULLIFIED \ |
| // OBSOLETE (({ \ |
| // OBSOLETE int ipsw = (int)read_register(IPSW_REGNUM); \ |
| // OBSOLETE if (ipsw & PSW_N) \ |
| // OBSOLETE { \ |
| // OBSOLETE int pcoqt = (int)read_register(PCOQ_TAIL_REGNUM); \ |
| // OBSOLETE write_register(PCOQ_HEAD_REGNUM, pcoqt); \ |
| // OBSOLETE write_register(PCOQ_TAIL_REGNUM, pcoqt + 0x4); \ |
| // OBSOLETE write_register(IPSW_REGNUM, ipsw & ~(PSW_N | PSW_B | PSW_X)); \ |
| // OBSOLETE stop_pc = pcoqt; \ |
| // OBSOLETE } \ |
| // OBSOLETE }), 0) |
| // OBSOLETE |
| // OBSOLETE /* It's mostly just the common stuff. */ |
| // OBSOLETE |
| // OBSOLETE #include "pa/tm-hppa.h" |
