| /* Parameters for execution on any Hewlett-Packard PA-RISC machine. |
| Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1995, 1999, 2000 |
| Free Software Foundation, Inc. |
| |
| Contributed by the Center for Software Science at the |
| University of Utah (pa-gdb-bugs@cs.utah.edu). |
| |
| This file is part of GDB. |
| |
| This program 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 2 of the License, or |
| (at your option) any later version. |
| |
| This program 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 this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| /* PA 64-bit specific definitions. Override those which are in |
| tm-hppa.h */ |
| |
| /* jimb: this must go. I'm just using it to disable code I haven't |
| gotten working yet. */ |
| #define GDB_TARGET_IS_HPPA_20W |
| |
| #include "pa/tm-hppah.h" |
| |
| #define HPUX_1100 1 |
| |
| /* The low two bits of the IA are the privilege level of the instruction. */ |
| #define ADDR_BITS_REMOVE(addr) ((CORE_ADDR)addr & (CORE_ADDR)~3) |
| |
| /* Say how long (ordinary) registers are. This is used in |
| push_word and a few other places, but REGISTER_RAW_SIZE is |
| the real way to know how big a register is. */ |
| |
| #undef REGISTER_SIZE |
| #define REGISTER_SIZE 8 |
| |
| /* Number of bytes of storage in the actual machine representation |
| for register N. On the PA-RISC 2.0, all regs are 8 bytes, including |
| the FP registers (they're accessed as two 4 byte halves). */ |
| |
| #undef REGISTER_RAW_SIZE |
| #define REGISTER_RAW_SIZE(N) 8 |
| |
| /* Largest value REGISTER_RAW_SIZE can have. */ |
| |
| #undef DEPRECATED_MAX_REGISTER_RAW_SIZE |
| #define DEPRECATED_MAX_REGISTER_RAW_SIZE 8 |
| |
| /* Total amount of space needed to store our copies of the machine's |
| register state, the array `registers'. */ |
| |
| #undef REGISTER_BYTES |
| #define REGISTER_BYTES (NUM_REGS * 8) |
| |
| /* Index within `registers' of the first byte of the space for |
| register N. */ |
| |
| #undef REGISTER_BYTE |
| #define REGISTER_BYTE(N) ((N) * 8) |
| |
| #undef REGISTER_VIRTUAL_TYPE |
| #define REGISTER_VIRTUAL_TYPE(N) \ |
| ((N) < FP4_REGNUM ? builtin_type_unsigned_long_long : builtin_type_double) |
| |
| |
| /* Number of machine registers */ |
| #undef NUM_REGS |
| #define NUM_REGS 96 |
| |
| /* Initializer for an array of names of registers. |
| There should be NUM_REGS strings in this initializer. |
| They are in rows of eight entries */ |
| #undef REGISTER_NAMES |
| #define REGISTER_NAMES \ |
| {"flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", \ |
| "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ |
| "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ |
| "r24", "r25", "r26", "dp", "ret0", "ret1", "sp", "r31", \ |
| "sar", "pcoqh", "pcsqh", "pcoqt", "pcsqt", "eiem", "iir", "isr", \ |
| "ior", "ipsw", "goto", "sr4", "sr0", "sr1", "sr2", "sr3", \ |
| "sr5", "sr6", "sr7", "cr0", "cr8", "cr9", "ccr", "cr12", \ |
| "cr13", "cr24", "cr25", "cr26", "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",\ |
| "fpsr", "fpe1", "fpe2", "fpe3", "fr4", "fr5", "fr6", "fr7", \ |
| "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15", \ |
| "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23", \ |
| "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31"} |
| |
| #undef FP0_REGNUM |
| #undef FP4_REGNUM |
| #define FP0_REGNUM 64 /* floating point reg. 0 (fspr)*/ |
| #define FP4_REGNUM 68 |
| |
| /* Redefine some target bit sizes from the default. */ |
| |
| /* Number of bits in a long or unsigned long for the target machine. */ |
| |
| #define TARGET_LONG_BIT 64 |
| |
| /* Number of bits in a long long or unsigned long long for the |
| target machine. */ |
| |
| #define TARGET_LONG_LONG_BIT 64 |
| |
| /* Number of bits in a pointer for the target machine */ |
| |
| #define TARGET_PTR_BIT 64 |
| |
| /* Argument Pointer Register */ |
| #define AP_REGNUM 29 |
| |
| #define DP_REGNUM 27 |
| |
| #define FP5_REGNUM 70 |
| |
| #define SR5_REGNUM 48 |
| |
| /* We access locals from SP. This may not work for frames which call |
| alloca; for those, we may need to consult unwind tables. |
| jimb: FIXME. */ |
| #undef FRAME_LOCALS_ADDRESS |
| #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) |
| |
| /* For a number of horrible reasons we may have to adjust the location |
| of variables on the stack. Ugh. jimb: why? */ |
| #define HPREAD_ADJUST_STACK_ADDRESS(ADDR) hpread_adjust_stack_address(ADDR) |
| |
| extern int hpread_adjust_stack_address (CORE_ADDR); |
| |
| |
| /* jimb: omitted dynamic linking stuff here */ |
| |
| /* This sequence of words is the instructions |
| |
| ; Call stack frame has already been built by gdb. Since we could be calling |
| ; a varargs function, and we do not have the benefit of a stub to put things in |
| ; the right place, we load the first 8 word of arguments into both the general |
| ; and fp registers. |
| call_dummy |
| nop |
| copy %r4,%r29 |
| copy %r5,%r22 |
| copy %r6,%r27 |
| fldd -64(0,%r29),%fr4 |
| fldd -56(0,%r29),%fr5 |
| fldd -48(0,%r29),%fr6 |
| fldd -40(0,%r29),%fr7 |
| fldd -32(0,%r29),%fr8 |
| fldd -24(0,%r29),%fr9 |
| fldd -16(0,%r29),%fr10 |
| fldd -8(0,%r29),%fr11 |
| copy %r22,%r1 |
| ldd -64(%r29), %r26 |
| ldd -56(%r29), %r25 |
| ldd -48(%r29), %r24 |
| ldd -40(%r29), %r23 |
| ldd -32(%r29), %r22 |
| ldd -24(%r29), %r21 |
| ldd -16(%r29), %r20 |
| bve,l (%r1),%r2 |
| ldd -8(%r29), %r19 |
| break 4, 8 |
| mtsp %r21, %sr0 |
| ble 0(%sr0, %r22) |
| nop |
| */ |
| |
| /* Call dummys are sized and written out in word sized hunks. So we have |
| to pack the instructions into words. Ugh. */ |
| #undef CALL_DUMMY |
| #define CALL_DUMMY {0x08000240349d0000LL, 0x34b6000034db0000LL, \ |
| 0x53a43f8353a53f93LL, 0x53a63fa353a73fb3LL,\ |
| 0x53a83fc353a93fd3LL, 0x2fa1100a2fb1100bLL,\ |
| 0x36c1000053ba3f81LL, 0x53b93f9153b83fa1LL,\ |
| 0x53b73fb153b63fc1LL, 0x53b53fd10fa110d4LL,\ |
| 0xe820f0000fb110d3LL, 0x0001000400151820LL,\ |
| 0xe6c0000008000240LL} |
| |
| #define CALL_DUMMY_BREAKPOINT_OFFSET 22 * 4 |
| |
| /* CALL_DUMMY_LENGTH is computed based on the size of a word on the target |
| machine, not the size of an instruction. Since a word on this target |
| holds two instructions we have to divide the instruction size by two to |
| get the word size of the dummy. */ |
| #undef CALL_DUMMY_LENGTH |
| #define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 26 / 2) |
| |
| /* The PA64 ABI mandates a 16 byte stack alignment. */ |
| #undef STACK_ALIGN |
| #define STACK_ALIGN(arg) ( ((arg)%16) ? (((arg)+15)&-16) : (arg)) |
| |
| /* The PA64 ABI reserves 64 bytes of stack space for outgoing register |
| parameters. */ |
| #undef REG_PARM_STACK_SPACE |
| #define REG_PARM_STACK_SPACE 64 |
| |
| /* Use the 64-bit calling conventions designed for the PA2.0 in wide mode. */ |
| #define PA20W_CALLING_CONVENTIONS |
| |
| #undef FUNC_LDIL_OFFSET |
| #undef FUNC_LDO_OFFSET |
| #undef SR4EXPORT_LDIL_OFFSET |
| #undef SR4EXPORT_LDO_OFFSET |
| |
| #undef REG_STRUCT_HAS_ADDR |
| |
| #undef DEPRECATED_EXTRACT_RETURN_VALUE |
| /* RM: floats are returned in FR4R, doubles in FR4 |
| * integral values are in r28, padded on the left |
| * aggregates less that 65 bits are in r28, right padded |
| * aggregates upto 128 bits are in r28 and r29, right padded |
| */ |
| #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ |
| { \ |
| if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \ |
| memcpy ((VALBUF), \ |
| ((char *)(REGBUF)) + REGISTER_BYTE (FP4_REGNUM) + \ |
| (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ |
| TYPE_LENGTH (TYPE)); \ |
| else if (is_integral_type(TYPE) || SOFT_FLOAT) \ |
| memcpy ((VALBUF), \ |
| (char *)(REGBUF) + REGISTER_BYTE (28) + \ |
| (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ |
| TYPE_LENGTH (TYPE)); \ |
| else if (TYPE_LENGTH (TYPE) <= 8) \ |
| memcpy ((VALBUF), \ |
| (char *)(REGBUF) + REGISTER_BYTE (28), \ |
| TYPE_LENGTH (TYPE)); \ |
| else if (TYPE_LENGTH (TYPE) <= 16) \ |
| { \ |
| memcpy ((VALBUF), \ |
| (char *)(REGBUF) + REGISTER_BYTE (28), \ |
| 8); \ |
| memcpy (((char *) VALBUF + 8), \ |
| (char *)(REGBUF) + REGISTER_BYTE (29), \ |
| TYPE_LENGTH (TYPE) - 8); \ |
| } \ |
| } |
| |
| /* RM: struct upto 128 bits are returned in registers */ |
| #undef USE_STRUCT_CONVENTION |
| #define USE_STRUCT_CONVENTION(gcc_p, value_type)\ |
| (TYPE_LENGTH (value_type) > 16) |
| |
| /* RM: for return command */ |
| #undef DEPRECATED_STORE_RETURN_VALUE |
| #define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \ |
| { \ |
| if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \ |
| deprecated_write_register_bytes \ |
| (REGISTER_BYTE (FP4_REGNUM) + \ |
| (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ |
| (VALBUF), \ |
| TYPE_LENGTH (TYPE)); \ |
| else if (is_integral_type(TYPE) || SOFT_FLOAT) \ |
| deprecated_write_register_bytes \ |
| (REGISTER_BYTE (28) + \ |
| (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ |
| (VALBUF), \ |
| TYPE_LENGTH (TYPE)); \ |
| else if (TYPE_LENGTH (TYPE) <= 8) \ |
| deprecated_write_register_bytes \ |
| ( REGISTER_BYTE (28), \ |
| (VALBUF), \ |
| TYPE_LENGTH (TYPE)); \ |
| else if (TYPE_LENGTH (TYPE) <= 16) \ |
| { \ |
| deprecated_write_register_bytes \ |
| (REGISTER_BYTE (28), \ |
| (VALBUF), \ |
| 8); \ |
| deprecated_write_register_bytes \ |
| (REGISTER_BYTE (29), \ |
| ((char *) VALBUF + 8), \ |
| TYPE_LENGTH (TYPE) - 8); \ |
| } \ |
| } |
| |
| /* RM: these are the PA64 equivalents of the macros in tm-hppah.h -- |
| * see comments there. For PA64, the save_state structure is at an |
| * offset of 24 32-bit words from the sigcontext structure. The 64 bit |
| * general registers are at an offset of 640 bytes from the beginning of the |
| * save_state structure, and the floating pointer register are at an offset |
| * of 256 bytes from the beginning of the save_state structure. |
| */ |
| #undef FRAME_SAVED_PC_IN_SIGTRAMP |
| #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \ |
| { \ |
| *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (33 * 8), 8); \ |
| } |
| |
| #undef FRAME_BASE_BEFORE_SIGTRAMP |
| #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \ |
| { \ |
| *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (30 * 8), 8); \ |
| } |
| |
| #undef FRAME_FIND_SAVED_REGS_IN_SIGTRAMP |
| #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \ |
| { \ |
| int i; \ |
| CORE_ADDR TMP1, TMP2; \ |
| TMP1 = (FRAME)->frame + (24 * 4) + 640; \ |
| TMP2 = (FRAME)->frame + (24 * 4) + 256; \ |
| for (i = 0; i < NUM_REGS; i++) \ |
| { \ |
| if (i == SP_REGNUM) \ |
| (FSR)[SP_REGNUM] = read_memory_integer (TMP1 + SP_REGNUM * 8, 8); \ |
| else if (i >= FP0_REGNUM) \ |
| (FSR)[i] = TMP2 + (i - FP0_REGNUM) * 8; \ |
| else \ |
| (FSR)[i] = TMP1 + i * 8; \ |
| } \ |
| } |
| |
| /* jimb: omitted purify call support */ |
