projects / deliverable / binutils-gdb.git / blame
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|---|---|---|
| 5076de82 FF |
1 | /* Parameters for Hewlett-Packard 9000/300 native support under bsd. |
| 2 | Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GDB. | |
| 5 | ||
| 6 | This program is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | This program is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with this program; if not, write to the Free Software | |
| 6c9638b4 | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 5076de82 | 19 | |
| 0ca9bd12 | 20 | /* Detect whether this is 4.3 or 4.4. */ |
| 5076de82 FF |
21 | |
| 22 | #include <errno.h> | |
| 27405a28 JL |
23 | #include <sys/param.h> |
| 24 | #ifdef BSD4_4 | |
| 5076de82 | 25 | |
| 0ca9bd12 JK |
26 | /* BSD 4.4 alpha or better */ |
| 27 | ||
| 28 | /* We can attach to processes using ptrace. */ | |
| 5076de82 FF |
29 | |
| 30 | #define ATTACH_DETACH | |
| 31 | #define PTRACE_ATTACH 10 | |
| 32 | #define PTRACE_DETACH 11 | |
| 33 | ||
| 0ca9bd12 | 34 | /* The third argument of ptrace is declared as this type. */ |
| 5076de82 FF |
35 | |
| 36 | #define PTRACE_ARG3_TYPE caddr_t | |
| 37 | ||
| 38 | /* U_REGS_OFFSET is the offset of the registers within the u area for | |
| 39 | ptrace purposes. */ | |
| 40 | #define U_REGS_OFFSET \ | |
| 41 | ptrace (PT_READ_U, inferior_pid, \ | |
| 42 | (PTRACE_ARG3_TYPE) \ | |
| 43 | (offsetof (struct user, u_kproc.kp_proc.p_md.md_regs)), 0) \ | |
| 44 | - USRSTACK | |
| 45 | ||
| 0ca9bd12 JK |
46 | /* No user structure in 4.4, registers are relative to kernel stack |
| 47 | which is fixed. */ | |
| 48 | #define KERNEL_U_ADDR 0xFFF00000 | |
| 49 | ||
| 50 | /* FIXME: Is ONE_PROCESS_WRITETEXT still true now that the kernel has | |
| 51 | copy-on-write? It not, move it to the 4.3-specific section below | |
| 52 | (now it is in xm-hp300bsd.h). */ | |
| 5076de82 | 53 | |
| 5076de82 FF |
54 | #else |
| 55 | ||
| 0ca9bd12 JK |
56 | /* This is BSD 4.3 or something like it. */ |
| 57 | ||
| 58 | /* Get kernel u area address at run-time using BSD style nlist (). */ | |
| 59 | #define KERNEL_U_ADDR_BSD | |
| 60 | ||
| 61 | #endif | |
| 62 | ||
| 63 | /* This was once broken for 4.4, but probably because we had the wrong | |
| 64 | KERNEL_U_ADDR. */ | |
| 5076de82 FF |
65 | |
| 66 | /* This is a piece of magic that is given a register number REGNO | |
| 67 | and as BLOCKEND the address in the system of the end of the user structure | |
| 68 | and stores in ADDR the address in the kernel or core dump | |
| 69 | of that register. */ | |
| 70 | ||
| 71 | #define REGISTER_U_ADDR(addr, blockend, regno) \ | |
| 72 | { \ | |
| 73 | if (regno < PS_REGNUM) \ | |
| 74 | addr = (int) &((struct frame *)(blockend))->f_regs[regno]; \ | |
| 75 | else if (regno == PS_REGNUM) \ | |
| 76 | addr = (int) &((struct frame *)(blockend))->f_stackadj; \ | |
| 77 | else if (regno == PC_REGNUM) \ | |
| 78 | addr = (int) &((struct frame *)(blockend))->f_pc; \ | |
| 79 | else if (regno < FPC_REGNUM) \ | |
| 80 | addr = (int) \ | |
| 81 | &((struct user *)0)->u_pcb.pcb_fpregs.fpf_regs[((regno)-FP0_REGNUM)*3];\ | |
| 82 | else if (regno == FPC_REGNUM) \ | |
| 83 | addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpcr; \ | |
| 84 | else if (regno == FPS_REGNUM) \ | |
| 85 | addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpsr; \ | |
| 86 | else \ | |
| 87 | addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \ | |
| 88 | } |