| /* Parameters for execution on any Hewlett-Packard PA-RISC machine. |
| |
| Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
| 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004 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" |
| |
| #define GDB_MULTI_ARCH 1 |
| |
| /* Hack, get around problem with including "arch-utils.h". */ |
| struct frame_info; |
| |
| /* Forward declarations of some types we use in prototypes */ |
| |
| struct frame_info; |
| struct frame_saved_regs; |
| struct value; |
| struct type; |
| struct inferior_status; |
| |
| /* Sequence of bytes for breakpoint instruction. */ |
| |
| const unsigned char *hppa_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr); |
| #define BREAKPOINT_FROM_PC(PCPTR,LENPTR) hppa_breakpoint_from_pc ((PCPTR), (LENPTR)) |
| #define BREAKPOINT32 0x10004 |
| |
| extern int hppa_pc_requires_run_before_use (CORE_ADDR pc); |
| #define PC_REQUIRES_RUN_BEFORE_USE(pc) hppa_pc_requires_run_before_use (pc) |
| |
| /* 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 HPPA_FP_REGNUM 3 /* The ABI's frame pointer, when used */ |
| #define HPPA_SP_REGNUM 30 /* Stack pointer. */ |
| #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 HPPA_FP0_REGNUM 64 /* First floating-point. */ |
| #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. */ |
| |
| /* 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) |
| |
| /* PA specific macro to see if the current instruction is nullified. */ |
| #ifndef INSTRUCTION_NULLIFIED |
| extern int hppa_instruction_nullified (void); |
| #define INSTRUCTION_NULLIFIED hppa_instruction_nullified () |
| #endif |
| |
| #define INSTRUCTION_SIZE 4 |
| |
| #define REG_PARM_STACK_SPACE 16 |
| |
| #define GDB_TARGET_IS_HPPA |
| |
| /* |
| * 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. */ |
| |
| /* 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; |
| |
| /* 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); |
| |
| /* 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) |