projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 6bfd168c JL |
1 | /* Parameters for execution on an HP PA-RISC machine running OSF1, for GDB. |
| 2 | Contributed by the Center for Software Science at the | |
| 3 | University of Utah (pa-gdb-bugs@cs.utah.edu). */ | |
| 4 | ||
| 70e43abe JL |
5 | /* For OSF1 (Should be close if not identical to BSD, but I haven't |
| 6 | tested it yet): | |
| 7 | ||
| 8 | The signal context structure pointer is always saved at the base | |
| 9 | of the frame + 0x4. | |
| 10 | ||
| 11 | We get the PC & SP directly from the sigcontext structure itself. | |
| 12 | For other registers we have to dive in a little deeper: | |
| 13 | ||
| 14 | The hardware save state pointer is at offset 0x10 within the | |
| 15 | signal context structure. | |
| 16 | ||
| 17 | Within the hardware save state, registers are found in the same order | |
| 18 | as the register numbers in GDB. */ | |
| 19 | ||
| 20 | #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \ | |
| 21 | { \ | |
| 22 | *(TMP) = read_memory_integer ((FRAME)->frame + 0x4, 4); \ | |
| 23 | *(TMP) = read_memory_integer (*(TMP) + 0x18, 4); \ | |
| 24 | } | |
| 25 | ||
| 26 | #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \ | |
| 27 | { \ | |
| 28 | *(TMP) = read_memory_integer ((FRAME)->frame + 0x4, 4); \ | |
| 29 | *(TMP) = read_memory_integer (*(TMP) + 0x8, 4); \ | |
| 30 | } | |
| 31 | ||
| 32 | #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \ | |
| 33 | { \ | |
| 34 | int i; \ | |
| 35 | CORE_ADDR TMP; \ | |
| 36 | TMP = read_memory_integer ((FRAME)->frame + 0x4, 4); \ | |
| 37 | TMP = read_memory_integer (TMP + 0x10, 4); \ | |
| 38 | for (i = 0; i < NUM_REGS; i++) \ | |
| 39 | { \ | |
| 40 | if (i == SP_REGNUM) \ | |
| 41 | (FSR)->regs[SP_REGNUM] = read_memory_integer (TMP + SP_REGNUM * 4, 4); \ | |
| 42 | else \ | |
| 43 | (FSR)->regs[i] = TMP + i * 4; \ | |
| 44 | } \ | |
| 45 | } | |
| 6bfd168c JL |
46 | |
| 47 | /* OSF1 needs an extra trap. I assume for the emulator startup (?!?) */ | |
| 48 | #define START_INFERIOR_TRAPS_EXPECTED 3 | |
| 70e43abe | 49 | |
| 0a64709e JL |
50 | /* OSF1 does not need the pc space queue restored. */ |
| 51 | #define NO_PC_SPACE_QUEUE_RESTORE | |
| 52 | ||
| 70e43abe JL |
53 | /* It's mostly just the common stuff. */ |
| 54 | #include "pa/tm-hppa.h" |