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old-cross-binutils/gdb/config/pa/tm-hppa.h
Joel Brobecker 14604c6bf7 Ongoing multi-arch conversion effort for HP/UX: 
* config/pa/tm-hppa.h: Move all macro that are no longer
       defined now that GDB_MULTI_ARCH is now set to 1 from here...
       * config/pa/tm-hppa64.h: ... to here (hppa64 is not multiarch'ed yet).
2003-04-22 02:44:27 +00:00

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/* 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.
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"
/* Wonder if this is correct? Should be using push_dummy_call(). */
#define DEPRECATED_DUMMY_WRITE_SP(SP) generic_target_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;
/* 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
/* Sequence of bytes for breakpoint instruction. */
#define BREAKPOINT {0x00, 0x01, 0x00, 0x04}
#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. */
/*
* 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 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
//OBSOLETE #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 REG_PARM_STACK_SPACE 16
//OBSOLETE #else /* defined PA_LEVEL_0 */
//OBSOLETE
//OBSOLETE /* FIXME: brobecker 2002-12-26. PA_LEVEL_0 is only defined for the
//OBSOLETE hppa-pro target, which should be obsoleted soon. The following
//OBSOLETE section will therefore not be included in the multiarch conversion. */
//OBSOLETE /* This is the call dummy for a level 0 PA. Level 0's don't have space
//OBSOLETE registers (or floating point?), so we skip all that inter-space call stuff,
//OBSOLETE and avoid touching the fp regs.
//OBSOLETE
//OBSOLETE call_dummy
//OBSOLETE
//OBSOLETE ldw -36(%sp), %arg0
//OBSOLETE ldw -40(%sp), %arg1
//OBSOLETE ldw -44(%sp), %arg2
//OBSOLETE ldw -48(%sp), %arg3
//OBSOLETE ldil 0, %r31 ; FUNC_LDIL_OFFSET must point here
//OBSOLETE ldo 0(%r31), %r31 ; FUNC_LDO_OFFSET must point here
//OBSOLETE ble 0(%sr0, %r31)
//OBSOLETE copy %r31, %r2
//OBSOLETE break 4, 8
//OBSOLETE nop ; restore_pc_queue expects these
//OBSOLETE bv,n 0(%r22) ; instructions to be here...
//OBSOLETE nop
//OBSOLETE */
//OBSOLETE
//OBSOLETE /* Define offsets into the call dummy for the target function address */
//OBSOLETE #define FUNC_LDIL_OFFSET (INSTRUCTION_SIZE * 4)
//OBSOLETE #define FUNC_LDO_OFFSET (INSTRUCTION_SIZE * 5)
//OBSOLETE
//OBSOLETE #define CALL_DUMMY {0x4bda3fb9, 0x4bd93fb1, 0x4bd83fa9, 0x4bd73fa1,\
//OBSOLETE 0x23e00000, 0x37ff0000, 0xe7e00000, 0x081f0242,\
//OBSOLETE 0x00010004, 0x08000240, 0xeac0c002, 0x08000240}
//OBSOLETE
//OBSOLETE #define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 12)
//OBSOLETE
//OBSOLETE #endif /* defined PA_LEVEL_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) \
(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 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! */
#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 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. */
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;
/* 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)
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