projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| c906108c | 1 | /* Target machine description for VxWorks m68k's, for GDB, the GNU debugger. |
| 51603483 DJ |
2 | Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, |
| 3 | 2002, 2003 | |
| b6ba6518 | 4 | Free Software Foundation, Inc. |
| c906108c SS |
5 | Contributed by Cygnus Support. |
| 6 | ||
| c5aa993b | 7 | This file is part of GDB. |
| c906108c | 8 | |
| c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by | |
| 11 | the Free Software Foundation; either version 2 of the License, or | |
| 12 | (at your option) any later version. | |
| c906108c | 13 | |
| c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | GNU General Public License for more details. | |
| c906108c | 18 | |
| c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software | |
| 21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
| 22 | Boston, MA 02111-1307, USA. */ | |
| c906108c | 23 | |
| c906108c SS |
24 | /* GCC is probably the only compiler used on this configuration. So |
| 25 | get this right even if the code which detects gcc2_compiled. is | |
| 26 | still broken. */ | |
| 27 | ||
| 28 | #define BELIEVE_PCC_PROMOTION 1 | |
| 29 | ||
| 30 | /* We have more complex, useful breakpoints on the target. */ | |
| 31 | #define DECR_PC_AFTER_BREAK 0 | |
| 32 | ||
| 33 | #include "m68k/tm-m68k.h" | |
| 4f2e4a4f | 34 | #include "config/tm-vxworks.h" |
| c906108c SS |
35 | |
| 36 | /* Takes the current frame-struct pointer and returns the chain-pointer | |
| 37 | to get to the calling frame. | |
| 38 | ||
| 39 | If our current frame pointer is zero, we're at the top; else read out | |
| 40 | the saved FP from memory pointed to by the current FP. */ | |
| 41 | ||
| 618ce49f AC |
42 | #undef DEPRECATED_FRAME_CHAIN |
| 43 | #define DEPRECATED_FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0) | |
| c906108c | 44 | |
| c906108c SS |
45 | /* FIXME, Longjmp information stolen from Sun-3 config. Dunno if right. */ |
| 46 | /* Offsets (in target ints) into jmp_buf. Not defined by Sun, but at least | |
| 47 | documented in a comment in <machine/setjmp.h>! */ | |
| 48 | ||
| 49 | #define JB_ELEMENT_SIZE 4 | |
| 50 | ||
| 51 | #define JB_ONSSTACK 0 | |
| 52 | #define JB_SIGMASK 1 | |
| 53 | #define JB_SP 2 | |
| 54 | #define JB_PC 3 | |
| 55 | #define JB_PSL 4 | |
| 56 | #define JB_D2 5 | |
| 57 | #define JB_D3 6 | |
| 58 | #define JB_D4 7 | |
| 59 | #define JB_D5 8 | |
| 60 | #define JB_D6 9 | |
| 61 | #define JB_D7 10 | |
| 62 | #define JB_A2 11 | |
| 63 | #define JB_A3 12 | |
| 64 | #define JB_A4 13 | |
| 65 | #define JB_A5 14 | |
| 66 | #define JB_A6 15 | |
| 67 | ||
| 68 | /* Figure out where the longjmp will land. Slurp the args out of the stack. | |
| 69 | We expect the first arg to be a pointer to the jmp_buf structure from which | |
| 70 | we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. | |
| 71 | This routine returns true on success */ | |
| 72 | ||
| f4281f55 | 73 | #define GET_LONGJMP_TARGET(ADDR) m68k_get_longjmp_target(ADDR) |
| c906108c | 74 | |
| c906108c SS |
75 | /* Number of registers in a ptrace_getfpregs call. */ |
| 76 | ||
| 12c266ea | 77 | #define VX_SIZE_FPREGS (8 * DEPRECATED_REGISTER_RAW_SIZE (FP0_REGNUM) \ |
| b1e29e33 | 78 | + (3 * DEPRECATED_REGISTER_SIZE)) |