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Diffstat (limited to 'gdb/config/pa/tm-hppa.h')
| -rw-r--r-- | gdb/config/pa/tm-hppa.h | 766 |
1 files changed, 0 insertions, 766 deletions
diff --git a/gdb/config/pa/tm-hppa.h b/gdb/config/pa/tm-hppa.h deleted file mode 100644 index 6fd8c03..0000000 --- a/gdb/config/pa/tm-hppa.h +++ /dev/null @@ -1,766 +0,0 @@ -/* Parameters for execution on any Hewlett-Packard PA-RISC machine. - Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, - 1998, 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. */ - -#include "regcache.h" - -/* Forward declarations of some types we use in prototypes */ - -struct frame_info; -struct frame_saved_regs; -struct value; -struct type; -struct inferior_status; - -/* By default assume we don't have to worry about software floating point. */ -#ifndef SOFT_FLOAT -#define SOFT_FLOAT 0 -#endif - -/* Get at various relevent fields of an instruction word. */ - -#define MASK_5 0x1f -#define MASK_11 0x7ff -#define MASK_14 0x3fff -#define MASK_21 0x1fffff - -/* This macro gets bit fields using HP's numbering (MSB = 0) */ -#ifndef GET_FIELD -#define GET_FIELD(X, FROM, TO) \ - ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1)) -#endif - -/* On the PA, any pass-by-value structure > 8 bytes is actually - passed via a pointer regardless of its type or the compiler - used. */ - -#define REG_STRUCT_HAS_ADDR(gcc_p,type) \ - (TYPE_LENGTH (type) > 8) - -/* Offset from address of function to start of its code. - Zero on most machines. */ - -#define FUNCTION_START_OFFSET 0 - -/* Advance PC across any function entry prologue instructions - to reach some "real" code. */ - -extern CORE_ADDR hppa_skip_prologue (CORE_ADDR); -#define SKIP_PROLOGUE(pc) (hppa_skip_prologue (pc)) - -/* If PC is in some function-call trampoline code, return the PC - where the function itself actually starts. If not, return NULL. */ - -#define SKIP_TRAMPOLINE_CODE(pc) skip_trampoline_code (pc, NULL) -extern CORE_ADDR skip_trampoline_code (CORE_ADDR, char *); - -/* Return non-zero if we are in an appropriate trampoline. */ - -#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \ - in_solib_call_trampoline (pc, name) -extern int in_solib_call_trampoline (CORE_ADDR, char *); - -#define IN_SOLIB_RETURN_TRAMPOLINE(pc, name) \ - in_solib_return_trampoline (pc, name) -extern int in_solib_return_trampoline (CORE_ADDR, char *); - -/* Immediately after a function call, return the saved pc. - Can't go through the frames for this because on some machines - the new frame is not set up until the new function executes - some instructions. */ - -#undef SAVED_PC_AFTER_CALL -#define SAVED_PC_AFTER_CALL(frame) saved_pc_after_call (frame) -extern CORE_ADDR saved_pc_after_call (struct frame_info *); - -/* Stack grows upward */ -#define INNER_THAN(lhs,rhs) ((lhs) > (rhs)) - -/* elz: adjust the quantity to the next highest value which is 64-bit aligned. - This is used in valops.c, when the sp is adjusted. - On hppa the sp must always be kept 64-bit aligned */ - -#define STACK_ALIGN(arg) ( ((arg)%8) ? (((arg)+7)&-8) : (arg)) -#define EXTRA_STACK_ALIGNMENT_NEEDED 0 - -/* Sequence of bytes for breakpoint instruction. */ - -#define BREAKPOINT {0x00, 0x01, 0x00, 0x04} -#define BREAKPOINT32 0x10004 - -/* Amount PC must be decremented by after a breakpoint. - This is often the number of bytes in BREAKPOINT - but not always. - - Not on the PA-RISC */ - -#define DECR_PC_AFTER_BREAK 0 - -/* Sometimes we may pluck out a minimal symbol that has a negative - address. - - An example of this occurs when an a.out is linked against a foo.sl. - The foo.sl defines a global bar(), and the a.out declares a signature - for bar(). However, the a.out doesn't directly call bar(), but passes - its address in another call. - - If you have this scenario and attempt to "break bar" before running, - gdb will find a minimal symbol for bar() in the a.out. But that - symbol's address will be negative. What this appears to denote is - an index backwards from the base of the procedure linkage table (PLT) - into the data linkage table (DLT), the end of which is contiguous - with the start of the PLT. This is clearly not a valid address for - us to set a breakpoint on. - - Note that one must be careful in how one checks for a negative address. - 0xc0000000 is a legitimate address of something in a shared text - segment, for example. Since I don't know what the possible range - is of these "really, truly negative" addresses that come from the - minimal symbols, I'm resorting to the gross hack of checking the - top byte of the address for all 1's. Sigh. - */ -#define PC_REQUIRES_RUN_BEFORE_USE(pc) \ - (! target_has_stack && (pc & 0xFF000000)) - -/* return instruction is bv r0(rp) or bv,n r0(rp) */ - -#define ABOUT_TO_RETURN(pc) ((read_memory_integer (pc, 4) | 0x2) == 0xE840C002) - -/* Say how long (ordinary) registers are. This is a piece of bogosity - used in push_word and a few other places; REGISTER_RAW_SIZE is the - real way to know how big a register is. */ - -#define REGISTER_SIZE 4 - -/* Number of machine registers */ - -#define NUM_REGS 128 - -/* Initializer for an array of names of registers. - There should be NUM_REGS strings in this initializer. - They are in rows of eight entries */ - -#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", "fpe4", "fpe5", "fpe6", "fpe7", \ - "fr4", "fr4R", "fr5", "fr5R", "fr6", "fr6R", "fr7", "fr7R", \ - "fr8", "fr8R", "fr9", "fr9R", "fr10", "fr10R", "fr11", "fr11R", \ - "fr12", "fr12R", "fr13", "fr13R", "fr14", "fr14R", "fr15", "fr15R", \ - "fr16", "fr16R", "fr17", "fr17R", "fr18", "fr18R", "fr19", "fr19R", \ - "fr20", "fr20R", "fr21", "fr21R", "fr22", "fr22R", "fr23", "fr23R", \ - "fr24", "fr24R", "fr25", "fr25R", "fr26", "fr26R", "fr27", "fr27R", \ - "fr28", "fr28R", "fr29", "fr29R", "fr30", "fr30R", "fr31", "fr31R"} - -/* Register numbers of various important registers. - Note that some of these values are "real" register numbers, - and correspond to the general registers of the machine, - and some are "phony" register numbers which are too large - to be actual register numbers as far as the user is concerned - but do serve to get the desired values when passed to read_register. */ - -#define R0_REGNUM 0 /* Doesn't actually exist, used as base for - other r registers. */ -#define FLAGS_REGNUM 0 /* Various status flags */ -#define RP_REGNUM 2 /* return pointer */ -#define FP_REGNUM 3 /* Contains address of executing stack */ - /* frame */ -#define SP_REGNUM 30 /* Contains address of top of stack */ -#define SAR_REGNUM 32 /* Shift Amount Register */ -#define IPSW_REGNUM 41 /* Interrupt Processor Status Word */ -#define PCOQ_HEAD_REGNUM 33 /* instruction offset queue head */ -#define PCSQ_HEAD_REGNUM 34 /* instruction space queue head */ -#define PCOQ_TAIL_REGNUM 35 /* instruction offset queue tail */ -#define PCSQ_TAIL_REGNUM 36 /* instruction space queue tail */ -#define EIEM_REGNUM 37 /* External Interrupt Enable Mask */ -#define IIR_REGNUM 38 /* Interrupt Instruction Register */ -#define IOR_REGNUM 40 /* Interrupt Offset Register */ -#define SR4_REGNUM 43 /* space register 4 */ -#define RCR_REGNUM 51 /* Recover Counter (also known as cr0) */ -#define CCR_REGNUM 54 /* Coprocessor Configuration Register */ -#define TR0_REGNUM 57 /* Temporary Registers (cr24 -> cr31) */ -#define CR27_REGNUM 60 /* Base register for thread-local storage, cr27 */ -#define FP0_REGNUM 64 /* floating point reg. 0 (fspr) */ -#define FP4_REGNUM 72 - -#define ARG0_REGNUM 26 /* The first argument of a callee. */ -#define ARG1_REGNUM 25 /* The second argument of a callee. */ -#define ARG2_REGNUM 24 /* The third argument of a callee. */ -#define ARG3_REGNUM 23 /* The fourth argument of a callee. */ - -/* compatibility with the rest of gdb. */ -#define PC_REGNUM PCOQ_HEAD_REGNUM -#define NPC_REGNUM PCOQ_TAIL_REGNUM - -/* - * Processor Status Word Masks - */ - -#define PSW_T 0x01000000 /* Taken Branch Trap Enable */ -#define PSW_H 0x00800000 /* Higher-Privilege Transfer Trap Enable */ -#define PSW_L 0x00400000 /* Lower-Privilege Transfer Trap Enable */ -#define PSW_N 0x00200000 /* PC Queue Front Instruction Nullified */ -#define PSW_X 0x00100000 /* Data Memory Break Disable */ -#define PSW_B 0x00080000 /* Taken Branch in Previous Cycle */ -#define PSW_C 0x00040000 /* Code Address Translation Enable */ -#define PSW_V 0x00020000 /* Divide Step Correction */ -#define PSW_M 0x00010000 /* High-Priority Machine Check Disable */ -#define PSW_CB 0x0000ff00 /* Carry/Borrow Bits */ -#define PSW_R 0x00000010 /* Recovery Counter Enable */ -#define PSW_Q 0x00000008 /* Interruption State Collection Enable */ -#define PSW_P 0x00000004 /* Protection ID Validation Enable */ -#define PSW_D 0x00000002 /* Data Address Translation Enable */ -#define PSW_I 0x00000001 /* External, Power Failure, Low-Priority */ - /* Machine Check Interruption Enable */ - -/* When fetching register values from an inferior or a core file, - clean them up using this macro. BUF is a char pointer to - the raw value of the register in the registers[] array. */ - -#define DEPRECATED_CLEAN_UP_REGISTER_VALUE(regno, buf) \ - do { \ - if ((regno) == PCOQ_HEAD_REGNUM || (regno) == PCOQ_TAIL_REGNUM) \ - (buf)[sizeof(CORE_ADDR) -1] &= ~0x3; \ - } while (0) - -/* Define DO_REGISTERS_INFO() to do machine-specific formatting - of register dumps. */ - -#define DO_REGISTERS_INFO(_regnum, fp) pa_do_registers_info (_regnum, fp) -extern void pa_do_registers_info (int, int); - -#if 0 -#define STRCAT_REGISTER(regnum, fpregs, stream, precision) pa_do_strcat_registers_info (regnum, fpregs, stream, precision) -extern void pa_do_strcat_registers_info (int, int, struct ui_file *, enum precision_type); -#endif - -/* PA specific macro to see if the current instruction is nullified. */ -#ifndef INSTRUCTION_NULLIFIED -#define INSTRUCTION_NULLIFIED \ - (((int)read_register (IPSW_REGNUM) & 0x00200000) && \ - !((int)read_register (FLAGS_REGNUM) & 0x2)) -#endif - -/* Number of bytes of storage in the actual machine representation - for register N. On the PA-RISC, all regs are 4 bytes, including - the FP registers (they're accessed as two 4 byte halves). */ - -#define REGISTER_RAW_SIZE(N) 4 - -/* Total amount of space needed to store our copies of the machine's - register state, the array `registers'. */ -#define REGISTER_BYTES (NUM_REGS * 4) - -/* Index within `registers' of the first byte of the space for - register N. */ - -#define REGISTER_BYTE(N) (N) * 4 - -/* Number of bytes of storage in the program's representation - for register N. */ - -#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N) - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE 4 - -/* Largest value REGISTER_VIRTUAL_SIZE can have. */ - -#define MAX_REGISTER_VIRTUAL_SIZE 8 - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -#define REGISTER_VIRTUAL_TYPE(N) \ - ((N) < FP4_REGNUM ? builtin_type_int : builtin_type_float) - -/* Store the address of the place in which to copy the structure the - subroutine will return. This is called from call_function. */ - -#define STORE_STRUCT_RETURN(ADDR, SP) {write_register (28, (ADDR)); } - -/* Extract from an array REGBUF containing the (raw) register state - a function return value of type TYPE, and copy that, in virtual format, - into VALBUF. */ - -void hppa_extract_return_value (struct type *type, char *regbuf, char *valbuf); -#define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - hppa_extract_return_value (TYPE, REGBUF, VALBUF); - - /* elz: decide whether the function returning a value of type type - will put it on the stack or in the registers. - The pa calling convention says that: - register 28 (called ret0 by gdb) contains any ASCII char, - and any non_floating point value up to 32-bits. - reg 28 and 29 contain non-floating point up tp 64 bits and larger - than 32 bits. (higer order word in reg 28). - fr4: floating point up to 64 bits - sr1: space identifier (32-bit) - stack: any lager than 64-bit, with the address in r28 - */ -extern use_struct_convention_fn hppa_use_struct_convention; -#define USE_STRUCT_CONVENTION(gcc_p,type) hppa_use_struct_convention (gcc_p,type) - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format. */ - - -extern void hppa_store_return_value (struct type *type, char *valbuf); -#define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \ - hppa_store_return_value (TYPE, VALBUF); - -/* Extract from an array REGBUF containing the (raw) register state - the address in which a function should return its structure value, - as a CORE_ADDR (or an expression that can be used as one). */ - -#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \ - (*(int *)((REGBUF) + REGISTER_BYTE (28))) - -/* elz: Return a large value, which is stored on the stack at addr. - This is defined only for the hppa, at this moment. The above macro - DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS is not called anymore, - because it assumes that on exit from a called function which - returns a large structure on the stack, the address of the ret - structure is still in register 28. Unfortunately this register is - usually overwritten by the called function itself, on hppa. This is - specified in the calling convention doc. As far as I know, the only - way to get the return value is to have the caller tell us where it - told the callee to put it, rather than have the callee tell us. */ -struct value *hppa_value_returned_from_stack (register struct type *valtype, - CORE_ADDR addr); -#define VALUE_RETURNED_FROM_STACK(valtype,addr) \ - hppa_value_returned_from_stack (valtype, addr) - -/* - * This macro defines the register numbers (from REGISTER_NAMES) that - * are effectively unavailable to the user through ptrace(). It allows - * us to include the whole register set in REGISTER_NAMES (inorder to - * better support remote debugging). If it is used in - * fetch/store_inferior_registers() gdb will not complain about I/O errors - * on fetching these registers. If all registers in REGISTER_NAMES - * are available, then return false (0). - */ - -#define CANNOT_STORE_REGISTER(regno) \ - ((regno) == 0) || \ - ((regno) == PCSQ_HEAD_REGNUM) || \ - ((regno) >= PCSQ_TAIL_REGNUM && (regno) < IPSW_REGNUM) || \ - ((regno) > IPSW_REGNUM && (regno) < FP4_REGNUM) - -#define INIT_EXTRA_FRAME_INFO(fromleaf, frame) init_extra_frame_info (fromleaf, frame) -extern void init_extra_frame_info (int, struct frame_info *); - -/* Describe the pointer in each stack frame to the previous stack frame - (its caller). */ - -/* FRAME_CHAIN takes a frame's nominal address and produces the - frame's chain-pointer. */ - -/* In the case of the PA-RISC, the frame's nominal address - is the address of a 4-byte word containing the calling frame's - address (previous FP). */ - -#define FRAME_CHAIN(thisframe) frame_chain (thisframe) -extern CORE_ADDR frame_chain (struct frame_info *); - -extern int hppa_frame_chain_valid (CORE_ADDR, struct frame_info *); -#define FRAME_CHAIN_VALID(chain, thisframe) hppa_frame_chain_valid (chain, thisframe) - -/* Define other aspects of the stack frame. */ - -/* A macro that tells us whether the function invocation represented - by FI does not have a frame on the stack associated with it. If it - does not, FRAMELESS is set to 1, else 0. */ -#define FRAMELESS_FUNCTION_INVOCATION(FI) \ - (frameless_function_invocation (FI)) -extern int frameless_function_invocation (struct frame_info *); - -extern CORE_ADDR hppa_frame_saved_pc (struct frame_info *frame); -#define FRAME_SAVED_PC(FRAME) hppa_frame_saved_pc (FRAME) - -#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) - -#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) -/* Set VAL to the number of args passed to frame described by FI. - Can set VAL to -1, meaning no way to tell. */ - -/* We can't tell how many args there are - now that the C compiler delays popping them. */ -#define FRAME_NUM_ARGS(fi) (-1) - -/* Return number of bytes at start of arglist that are not really args. */ - -#define FRAME_ARGS_SKIP 0 - -#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ - hppa_frame_find_saved_regs (frame_info, &frame_saved_regs) -extern void -hppa_frame_find_saved_regs (struct frame_info *, struct frame_saved_regs *); - - -/* Things needed for making the inferior call functions. */ - -/* Push an empty stack frame, to record the current PC, etc. */ - -#define PUSH_DUMMY_FRAME push_dummy_frame (inf_status) -extern void push_dummy_frame (struct inferior_status *); - -/* Discard from the stack the innermost frame, - restoring all saved registers. */ -#define POP_FRAME hppa_pop_frame () -extern void hppa_pop_frame (void); - -#define INSTRUCTION_SIZE 4 - -#ifndef PA_LEVEL_0 - -/* Non-level zero PA's have space registers (but they don't always have - floating-point, do they???? */ - -/* 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 4 word of arguments into both the general - ; and fp registers. - call_dummy - ldw -36(sp), arg0 - ldw -40(sp), arg1 - ldw -44(sp), arg2 - ldw -48(sp), arg3 - ldo -36(sp), r1 - fldws 0(0, r1), fr4 - fldds -4(0, r1), fr5 - fldws -8(0, r1), fr6 - fldds -12(0, r1), fr7 - ldil 0, r22 ; FUNC_LDIL_OFFSET must point here - ldo 0(r22), r22 ; FUNC_LDO_OFFSET must point here - ldsid (0,r22), r4 - ldil 0, r1 ; SR4EXPORT_LDIL_OFFSET must point here - ldo 0(r1), r1 ; SR4EXPORT_LDO_OFFSET must point here - ldsid (0,r1), r20 - combt,=,n r4, r20, text_space ; If target is in data space, do a - ble 0(sr5, r22) ; "normal" procedure call - copy r31, r2 - break 4, 8 - mtsp r21, sr0 - ble,n 0(sr0, r22) - text_space ; Otherwise, go through _sr4export, - ble (sr4, r1) ; which will return back here. - stw r31,-24(r30) - break 4, 8 - mtsp r21, sr0 - ble,n 0(sr0, r22) - nop ; To avoid kernel bugs - nop ; and keep the dummy 8 byte aligned - - The dummy decides if the target is in text space or data space. If - it's in data space, there's no problem because the target can - return back to the dummy. However, if the target is in text space, - the dummy calls the secret, undocumented routine _sr4export, which - calls a function in text space and can return to any space. Instead - of including fake instructions to represent saved registers, we - know that the frame is associated with the call dummy and treat it - specially. - - The trailing NOPs are needed to avoid a bug in HPUX, BSD and OSF1 - kernels. If the memory at the location pointed to by the PC is - 0xffffffff then a ptrace step call will fail (even if the instruction - is nullified). - - The code to pop a dummy frame single steps three instructions - starting with the last mtsp. This includes the nullified "instruction" - following the ble (which is uninitialized junk). If the - "instruction" following the last BLE is 0xffffffff, then the ptrace - will fail and the dummy frame is not correctly popped. - - By placing a NOP in the delay slot of the BLE instruction we can be - sure that we never try to execute a 0xffffffff instruction and - avoid the kernel bug. The second NOP is needed to keep the call - dummy 8 byte aligned. */ - -/* Define offsets into the call dummy for the target function address */ -#define FUNC_LDIL_OFFSET (INSTRUCTION_SIZE * 9) -#define FUNC_LDO_OFFSET (INSTRUCTION_SIZE * 10) - -/* Define offsets into the call dummy for the _sr4export address */ -#define SR4EXPORT_LDIL_OFFSET (INSTRUCTION_SIZE * 12) -#define SR4EXPORT_LDO_OFFSET (INSTRUCTION_SIZE * 13) - -#define CALL_DUMMY {0x4BDA3FB9, 0x4BD93FB1, 0x4BD83FA9, 0x4BD73FA1,\ - 0x37C13FB9, 0x24201004, 0x2C391005, 0x24311006,\ - 0x2C291007, 0x22C00000, 0x36D60000, 0x02C010A4,\ - 0x20200000, 0x34210000, 0x002010b4, 0x82842022,\ - 0xe6c06000, 0x081f0242, 0x00010004, 0x00151820,\ - 0xe6c00002, 0xe4202000, 0x6bdf3fd1, 0x00010004,\ - 0x00151820, 0xe6c00002, 0x08000240, 0x08000240} - -#define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 28) -#define REG_PARM_STACK_SPACE 16 - -#else /* defined PA_LEVEL_0 */ - -/* This is the call dummy for a level 0 PA. Level 0's don't have space - registers (or floating point?), so we skip all that inter-space call stuff, - and avoid touching the fp regs. - - call_dummy - - ldw -36(%sp), %arg0 - ldw -40(%sp), %arg1 - ldw -44(%sp), %arg2 - ldw -48(%sp), %arg3 - ldil 0, %r31 ; FUNC_LDIL_OFFSET must point here - ldo 0(%r31), %r31 ; FUNC_LDO_OFFSET must point here - ble 0(%sr0, %r31) - copy %r31, %r2 - break 4, 8 - nop ; restore_pc_queue expects these - bv,n 0(%r22) ; instructions to be here... - nop - */ - -/* Define offsets into the call dummy for the target function address */ -#define FUNC_LDIL_OFFSET (INSTRUCTION_SIZE * 4) -#define FUNC_LDO_OFFSET (INSTRUCTION_SIZE * 5) - -#define CALL_DUMMY {0x4bda3fb9, 0x4bd93fb1, 0x4bd83fa9, 0x4bd73fa1,\ - 0x23e00000, 0x37ff0000, 0xe7e00000, 0x081f0242,\ - 0x00010004, 0x08000240, 0xeac0c002, 0x08000240} - -#define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 12) - -#endif - -#define CALL_DUMMY_START_OFFSET 0 - -/* If we've reached a trap instruction within the call dummy, then - we'll consider that to mean that we've reached the call dummy's - end after its successful completion. */ -#define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \ - (PC_IN_CALL_DUMMY((pc), (sp), (frame_address)) && \ - (read_memory_integer((pc), 4) == BREAKPOINT32)) - -/* - * Insert the specified number of args and function address - * into a call sequence of the above form stored at DUMMYNAME. - * - * On the hppa we need to call the stack dummy through $$dyncall. - * Therefore our version of FIX_CALL_DUMMY takes an extra argument, - * real_pc, which is the location where gdb should start up the - * inferior to do the function call. - */ - -#define FIX_CALL_DUMMY hppa_fix_call_dummy - -extern CORE_ADDR -hppa_fix_call_dummy (char *, CORE_ADDR, CORE_ADDR, int, - struct value **, struct type *, int); - -#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \ - (hppa_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))) -extern CORE_ADDR -hppa_push_arguments (int, struct value **, CORE_ADDR, int, CORE_ADDR); - -/* The low two bits of the PC on the PA contain the privilege level. Some - genius implementing a (non-GCC) compiler apparently decided this means - that "addresses" in a text section therefore include a privilege level, - and thus symbol tables should contain these bits. This seems like a - bonehead thing to do--anyway, it seems to work for our purposes to just - ignore those bits. */ -#define SMASH_TEXT_ADDRESS(addr) ((addr) &= ~0x3) - -#define GDB_TARGET_IS_HPPA - -#define BELIEVE_PCC_PROMOTION 1 - -/* - * Unwind table and descriptor. - */ - -struct unwind_table_entry - { - CORE_ADDR region_start; - CORE_ADDR region_end; - - unsigned int Cannot_unwind:1; /* 0 */ - unsigned int Millicode:1; /* 1 */ - unsigned int Millicode_save_sr0:1; /* 2 */ - unsigned int Region_description:2; /* 3..4 */ - unsigned int reserved1:1; /* 5 */ - unsigned int Entry_SR:1; /* 6 */ - unsigned int Entry_FR:4; /* number saved *//* 7..10 */ - unsigned int Entry_GR:5; /* number saved *//* 11..15 */ - unsigned int Args_stored:1; /* 16 */ - unsigned int Variable_Frame:1; /* 17 */ - unsigned int Separate_Package_Body:1; /* 18 */ - unsigned int Frame_Extension_Millicode:1; /* 19 */ - unsigned int Stack_Overflow_Check:1; /* 20 */ - unsigned int Two_Instruction_SP_Increment:1; /* 21 */ - unsigned int Ada_Region:1; /* 22 */ - unsigned int cxx_info:1; /* 23 */ - unsigned int cxx_try_catch:1; /* 24 */ - unsigned int sched_entry_seq:1; /* 25 */ - unsigned int reserved2:1; /* 26 */ - unsigned int Save_SP:1; /* 27 */ - unsigned int Save_RP:1; /* 28 */ - unsigned int Save_MRP_in_frame:1; /* 29 */ - unsigned int extn_ptr_defined:1; /* 30 */ - unsigned int Cleanup_defined:1; /* 31 */ - - unsigned int MPE_XL_interrupt_marker:1; /* 0 */ - unsigned int HP_UX_interrupt_marker:1; /* 1 */ - unsigned int Large_frame:1; /* 2 */ - unsigned int Pseudo_SP_Set:1; /* 3 */ - unsigned int reserved4:1; /* 4 */ - unsigned int Total_frame_size:27; /* 5..31 */ - - /* This is *NOT* part of an actual unwind_descriptor in an object - file. It is *ONLY* part of the "internalized" descriptors that - we create from those in a file. - */ - struct - { - unsigned int stub_type:4; /* 0..3 */ - unsigned int padding:28; /* 4..31 */ - } - stub_unwind; - }; - -/* HP linkers also generate unwinds for various linker-generated stubs. - GDB reads in the stubs from the $UNWIND_END$ subspace, then - "converts" them into normal unwind entries using some of the reserved - fields to store the stub type. */ - -struct stub_unwind_entry - { - /* The offset within the executable for the associated stub. */ - unsigned stub_offset; - - /* The type of stub this unwind entry describes. */ - char type; - - /* Unknown. Not needed by GDB at this time. */ - char prs_info; - - /* Length (in instructions) of the associated stub. */ - short stub_length; - }; - -/* Sizes (in bytes) of the native unwind entries. */ -#define UNWIND_ENTRY_SIZE 16 -#define STUB_UNWIND_ENTRY_SIZE 8 - -/* The gaps represent linker stubs used in MPE and space for future - expansion. */ -enum unwind_stub_types - { - LONG_BRANCH = 1, - PARAMETER_RELOCATION = 2, - EXPORT = 10, - IMPORT = 11, - IMPORT_SHLIB = 12, - }; - -/* We use the objfile->obj_private pointer for two things: - - * 1. An unwind table; - * - * 2. A pointer to any associated shared library object. - * - * #defines are used to help refer to these objects. - */ - -/* Info about the unwind table associated with an object file. - - * This is hung off of the "objfile->obj_private" pointer, and - * is allocated in the objfile's psymbol obstack. This allows - * us to have unique unwind info for each executable and shared - * library that we are debugging. - */ -struct obj_unwind_info - { - struct unwind_table_entry *table; /* Pointer to unwind info */ - struct unwind_table_entry *cache; /* Pointer to last entry we found */ - int last; /* Index of last entry */ - }; - -typedef struct obj_private_struct - { - struct obj_unwind_info *unwind_info; /* a pointer */ - struct so_list *so_info; /* a pointer */ - CORE_ADDR dp; - } -obj_private_data_t; - -#if 0 -extern void target_write_pc (CORE_ADDR, int); -extern CORE_ADDR target_read_pc (int); -extern CORE_ADDR skip_trampoline_code (CORE_ADDR, char *); -#endif - -#define TARGET_READ_PC(pid) target_read_pc (pid) -extern CORE_ADDR target_read_pc (ptid_t); - -#define TARGET_WRITE_PC(v,pid) target_write_pc (v,pid) -extern void target_write_pc (CORE_ADDR, ptid_t); - -#define TARGET_READ_FP() target_read_fp (PIDGET (inferior_ptid)) -extern CORE_ADDR target_read_fp (int); - -/* For a number of horrible reasons we may have to adjust the location - of variables on the stack. Ugh. */ -#define HPREAD_ADJUST_STACK_ADDRESS(ADDR) hpread_adjust_stack_address(ADDR) - -extern int hpread_adjust_stack_address (CORE_ADDR); - -/* If the current gcc for for this target does not produce correct debugging - information for float parameters, both prototyped and unprototyped, then - define this macro. This forces gdb to always assume that floats are - passed as doubles and then converted in the callee. - - For the pa, it appears that the debug info marks the parameters as - floats regardless of whether the function is prototyped, but the actual - values are passed as doubles for the non-prototyped case and floats for - the prototyped case. Thus we choose to make the non-prototyped case work - for C and break the prototyped case, since the non-prototyped case is - probably much more common. (FIXME). */ - -#define COERCE_FLOAT_TO_DOUBLE(formal, actual) (current_language -> la_language == language_c) - -/* Here's how to step off a permanent breakpoint. */ -#define SKIP_PERMANENT_BREAKPOINT (hppa_skip_permanent_breakpoint) -extern void hppa_skip_permanent_breakpoint (void); - -/* On HP-UX, certain system routines (millicode) have names beginning - with $ or $$, e.g. $$dyncall, which handles inter-space procedure - calls on PA-RISC. Tell the expression parser to check for those - when parsing tokens that begin with "$". */ -#define SYMBOLS_CAN_START_WITH_DOLLAR (1) |