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binutils-gdb/gdb/config/pa/tm-hppa64.h

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/* Parameters for execution on any Hewlett-Packard PA-RISC machine.
Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1995, 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. */
/* 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 */
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