projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 35f5886e FF |
1 | /* Macro definitions for GDB on a Commodore Amiga running SVR4 (amix). |
| 2 | Copyright (C) 1991, Free Software Foundation, Inc. | |
| 3 | Written by Fred Fish at Cygnus Support (fnf@cygint) | |
| 4 | ||
| 5 | This file is part of GDB. | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 2 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 18 | along with this program; if not, write to the Free Software | |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 20 | ||
| 21 | /* All Amiga's (so far) running UNIX have come standard with the floating | |
| 22 | point coprocessor. */ | |
| 23 | ||
| 84d82b1c | 24 | #define HAVE_68881 |
| 35f5886e | 25 | |
| 84d82b1c FF |
26 | /* Define BPT_VECTOR if it is different than the default. |
| 27 | This is the vector number used by traps to indicate a breakpoint. */ | |
| 35f5886e | 28 | |
| 84d82b1c | 29 | #define BPT_VECTOR 0x1 |
| 35f5886e FF |
30 | |
| 31 | /* How much to decrement the PC after a trap. Depends on kernel. */ | |
| 32 | ||
| 33 | #define DECR_PC_AFTER_BREAK 0 /* No decrement required */ | |
| 34 | ||
| 84d82b1c | 35 | /* Address of end of stack space. Actually one byte past it. |
| 35f5886e FF |
36 | This value is typically very OS dependent. |
| 37 | FIXME: Check to see if SVR4 offers some machine independent way | |
| 38 | of discovering this value and use it if so, and if we need it. */ | |
| 39 | ||
| 40 | /* #define STACK_END_ADDR 0xc0800000 */ | |
| 41 | ||
| 84d82b1c | 42 | /* Use the alternate method of determining valid frame chains. */ |
| 35f5886e | 43 | |
| 84d82b1c FF |
44 | #define FRAME_CHAIN_VALID_ALTERNATE |
| 45 | ||
| ee1ad69c | 46 | #include "tm-sysv4.h" |
| 84d82b1c | 47 | #include "tm-68k.h" |
| d7eddc51 FF |
48 | |
| 49 | /* Offsets (in target ints) into jmp_buf. Not defined in any system header | |
| 50 | file, so we have to step through setjmp/longjmp with a debugger and figure | |
| 51 | them out. As a double check, note that <setjmp> defines _JBLEN as 13, | |
| 52 | which matches the number of elements we see saved by setjmp(). */ | |
| 53 | ||
| 54 | #define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */ | |
| 55 | ||
| 56 | #define JB_D2 0 | |
| 57 | #define JB_D3 1 | |
| 58 | #define JB_D4 2 | |
| 59 | #define JB_D5 3 | |
| 60 | #define JB_D6 4 | |
| 61 | #define JB_D7 5 | |
| 62 | #define JB_A1 6 | |
| 63 | #define JB_A2 7 | |
| 64 | #define JB_A3 8 | |
| 65 | #define JB_A4 9 | |
| 66 | #define JB_A5 10 | |
| 67 | #define JB_A6 11 | |
| 68 | #define JB_A7 12 | |
| 69 | ||
| 70 | #define JB_PC JB_A1 /* Setjmp()'s return PC saved in A1 */ | |
| 71 | ||
| 72 | /* Figure out where the longjmp will land. Slurp the args out of the stack. | |
| 73 | We expect the first arg to be a pointer to the jmp_buf structure from which | |
| 74 | we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. | |
| 75 | This routine returns true on success */ | |
| 76 | ||
| 77 | #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR) |