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Diffstat (limited to 'gdb/xm-pyr.h')
| -rw-r--r-- | gdb/xm-pyr.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/gdb/xm-pyr.h b/gdb/xm-pyr.h new file mode 100644 index 0000000..8a01569 --- /dev/null +++ b/gdb/xm-pyr.h @@ -0,0 +1,105 @@ +/* Definitions to make GDB run on a Pyramidax under OSx 4.0 (4.2bsd). + Copyright (C) 1988, 1989 Free Software Foundation, Inc. + +This file is part of GDB. + +GDB is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 1, or (at your option) +any later version. + +GDB is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GDB; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#define HOST_BYTE_ORDER BIG_ENDIAN + +/* Define PYRAMID_CONTROL_FRAME_DEBUGGING to get copious messages + about reading the control stack on standard output. This + makes gdb unusable as a debugger. */ + +/* #define PYRAMID_CONTROL_FRAME_DEBUGGING */ + +/* Define PYRAMID_FRAME_DEBUGGING for ? */ + +/* use Pyramid's slightly strange ptrace */ +#define PYRAMID_PTRACE + +/* Traditional Unix virtual address spaces have thre regions: text, + data and stack. The text, initialised data, and uninitialised data + are represented in separate segments of the a.out file. + When a process dumps core, the data and stack regions are written + to a core file. This gives a debugger enough information to + reconstruct (and debug) the virtual address space at the time of + the coredump. + Pyramids have an distinct fourth region of the virtual address + space, in which the contents of the windowed registers are stacked + in fixed-size frames. Pyramid refer to this region as the control + stack. Each call (or trap) automatically allocates a new register + frame; each return deallocates the current frame and restores the + windowed registers to their values before the call. + + When dumping core, the control stack is written to a core files as + a third segment. The core-handling functions need to know to deal + with it. */ + +/* Tell dep.c what the extra segment is. */ +#define PYRAMID_CORE + +#define NO_SIGINTERRUPT + +#define HAVE_WAIT_STRUCT + +/* Get rid of any system-imposed stack limit if possible. */ + +#define SET_STACK_LIMIT_HUGE + +/* This is the amount to subtract from u.u_ar0 + to get the offset in the core file of the register values. */ + +#define KERNEL_U_ADDR (0x80000000 - (UPAGES * NBPG)) + +/* Define offsets of registers in the core file (or maybe u area) */ +#define REGISTER_U_ADDR(addr, blockend, regno) \ +{ struct user __u; \ + addr = blockend + (regno - 16 ) * 4; \ + if (regno == 67) { \ + printf("\\geting reg 67\\"); \ + addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ + } else if (regno == KSP_REGNUM) { \ + printf("\\geting KSP (reg %d)\\", KSP_REGNUM); \ + addr = (int)(&__u.u_pcb.pcb_ksp) - (int) &__u; \ + } else if (regno == CSP_REGNUM) { \ + printf("\\geting CSP (reg %d\\",CSP_REGNUM); \ + addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ + } else if (regno == 64) { \ + printf("\\geting reg 64\\"); \ + addr = (int)(&__u.u_pcb.pcb_csp) - (int) &__u; \ + } else if (regno == PS_REGNUM) \ + addr = blockend - 4; \ + else if (1 && ((16 > regno) && (regno > 11))) \ + addr = last_frame_offset + (4 *(regno+32)); \ + else if (0 && (12 > regno)) \ + addr = global_reg_offset + (4 *regno); \ + else if (16 > regno) \ + addr = global_reg_offset + (4 *regno); \ + else \ + addr = blockend + (regno - 16 ) * 4; \ +} + +/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */ +#define FETCH_INFERIOR_REGISTERS + +/* Compensate for lack of `vprintf' function. */ +#define MISSING_VPRINTF + + +/* Interface definitions for kernel debugger KDB. */ + +/* I have *no idea* how to debug OSx kernels, so this + is flushed, possible forever. */ |