/* Parameters for execution on any Hewlett-Packard PA-RISC machine. Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1995 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 MAX_REGISTER_RAW_SIZE #define 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 #undef FRAME_ARGS_ADDRESS #define FRAME_ARGS_ADDRESS(fi) ((fi)->ap) /* 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) #define INIT_FRAME_AP init_frame_ap #define EXTRA_FRAME_INFO \ CORE_ADDR ap; /* 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_P 1 #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 CALL_DUMMY_LOCATION #undef REG_STRUCT_HAS_ADDR #undef 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 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 STORE_RETURN_VALUE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ { \ if (TYPE_CODE (TYPE) == TYPE_CODE_FLT && !SOFT_FLOAT) \ write_register_bytes \ (REGISTER_BYTE (FP4_REGNUM) + \ (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ (VALBUF), \ TYPE_LENGTH (TYPE)); \ else if (is_integral_type(TYPE) || SOFT_FLOAT) \ write_register_bytes \ (REGISTER_BYTE (28) + \ (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \ (VALBUF), \ TYPE_LENGTH (TYPE)); \ else if (TYPE_LENGTH (TYPE) <= 8) \ write_register_bytes \ ( REGISTER_BYTE (28), \ (VALBUF), \ TYPE_LENGTH (TYPE)); \ else if (TYPE_LENGTH (TYPE) <= 16) \ { \ write_register_bytes \ (REGISTER_BYTE (28), \ (VALBUF), \ 8); \ 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)->regs[SP_REGNUM] = read_memory_integer (TMP1 + SP_REGNUM * 8, 8); \ else if (i >= FP0_REGNUM) \ (FSR)->regs[i] = TMP2 + (i - FP0_REGNUM) * 8; \ else \ (FSR)->regs[i] = TMP1 + i * 8; \ } \ } /* jimb: omitted purify call support */