/* 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 Free Software Foundation, Inc.
+
+ Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
Contributed by the Center for Software Science at the
University of Utah (pa-gdb-bugs@cs.utah.edu).
#include "regcache.h"
-/* Wonder if this is correct? Should be using push_dummy_call(). */
-#define DEPRECATED_DUMMY_WRITE_SP(SP) deprecated_write_sp (SP)
-
-#ifndef GDB_MULTI_ARCH
-#define GDB_MULTI_ARCH 1
-#endif
-
-/* NOTE: cagney/2002-11-24: This is a guess. */
-#define DEPRECATED_USE_GENERIC_DUMMY_FRAMES 0
-#define CALL_DUMMY_LOCATION ON_STACK
-#define DEPRECATED_PC_IN_CALL_DUMMY(pc, sp, frame_address) deprecated_pc_in_call_dummy_on_stack (pc, sp, frame_address)
-#define DEPRECATED_INIT_FRAME_PC(l,f) (init_frame_pc_default (l, f))
-
-/* 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)
-
-/* 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 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 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)
-
-/* Define DEPRECATED_DO_REGISTERS_INFO() to do machine-specific
- formatting of register dumps. */
-
-#define DEPRECATED_DO_REGISTERS_INFO(_regnum, fp) pa_do_registers_info (_regnum, fp)
-extern void pa_do_registers_info (int, int);
-
-/* 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
-
-/* 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)
-
-extern void hppa_frame_init_saved_regs (struct frame_info *);
-#define DEPRECATED_FRAME_INIT_SAVED_REGS(FI) \
- hppa_frame_init_saved_regs (FI)
-
-#define INSTRUCTION_SIZE 4
-
-/* 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 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 REG_PARM_STACK_SPACE 16
-
-/* 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) \
- (DEPRECATED_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 DEPRECATED_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. */
-
-/* FIXME: brobecker 2002-12-26. This macro is going to cause us some
- problems before we can go to multiarch partial as it has been
- diverted on HPUX to return the value of the PC! */
-/* NOTE: cagney/2003-05-03: This has been replaced by push_dummy_code.
- Hopefully that has all the parameters HP/UX needs. */
-#define DEPRECATED_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 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)
+#define DEPRECATED_PC_REQUIRES_RUN_BEFORE_USE(pc) hppa_pc_requires_run_before_use (pc)
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