/* Target machine sub-parameters for SPARC, for GDB, the GNU debugger.
This is included by other tm-*.h files to define SPARC cpu-related info.
- Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994
+ Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
Contributed by Michael Tiemann (tiemann@mcc.com)
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-struct frame_info;
+#include "regcache.h"
+
struct type;
struct value;
+struct frame_info;
-#define TARGET_BYTE_ORDER BIG_ENDIAN
-
-/* Floating point is IEEE compatible. */
-#define IEEE_FLOAT
-
-/* If an argument is declared "register", Sun cc will keep it in a register,
- never saving it onto the stack. So we better not believe the "p" symbol
- descriptor stab. */
-
-#define USE_REGISTER_NOT_ARG
-
-/* When passing a structure to a function, Sun cc passes the address
- not the structure itself. It (under SunOS4) creates two symbols,
- which we need to combine to a LOC_REGPARM. Gcc version two (as of
- 1.92) behaves like sun cc. REG_STRUCT_HAS_ADDR is smart enough to
- distinguish between Sun cc, gcc version 1 and gcc version 2. */
-
-#define REG_STRUCT_HAS_ADDR(gcc_p,type) (gcc_p != 1)
-
-/* Sun /bin/cc gets this right as of SunOS 4.1.x. We need to define
- BELIEVE_PCC_PROMOTION to get this right now that the code which
- detects gcc2_compiled. is broken. This loses for SunOS 4.0.x and
- earlier. */
-
-#define BELIEVE_PCC_PROMOTION 1
+/*
+ * The following enums are purely for the convenience of the GDB
+ * developer, when debugging GDB.
+ */
-/* For acc, there's no need to correct LBRAC entries by guessing how
- they should work. In fact, this is harmful because the LBRAC
- entries now all appear at the end of the function, not intermixed
- with the SLINE entries. n_opt_found detects acc for Solaris binaries;
- function_stab_type detects acc for SunOS4 binaries.
+enum { /* Sparc general registers, for all sparc versions. */
+ G0_REGNUM, G1_REGNUM, G2_REGNUM, G3_REGNUM,
+ G4_REGNUM, G5_REGNUM, G6_REGNUM, G7_REGNUM,
+ O0_REGNUM, O1_REGNUM, O2_REGNUM, O3_REGNUM,
+ O4_REGNUM, O5_REGNUM, O6_REGNUM, O7_REGNUM,
+ L0_REGNUM, L1_REGNUM, L2_REGNUM, L3_REGNUM,
+ L4_REGNUM, L5_REGNUM, L6_REGNUM, L7_REGNUM,
+ I0_REGNUM, I1_REGNUM, I2_REGNUM, I3_REGNUM,
+ I4_REGNUM, I5_REGNUM, I6_REGNUM, I7_REGNUM,
+ FP0_REGNUM /* Floating point register 0 */
+};
+
+enum { /* Sparc general registers, alternate names. */
+ R0_REGNUM, R1_REGNUM, R2_REGNUM, R3_REGNUM,
+ R4_REGNUM, R5_REGNUM, R6_REGNUM, R7_REGNUM,
+ R8_REGNUM, R9_REGNUM, R10_REGNUM, R11_REGNUM,
+ R12_REGNUM, R13_REGNUM, R14_REGNUM, R15_REGNUM,
+ R16_REGNUM, R17_REGNUM, R18_REGNUM, R19_REGNUM,
+ R20_REGNUM, R21_REGNUM, R22_REGNUM, R23_REGNUM,
+ R24_REGNUM, R25_REGNUM, R26_REGNUM, R27_REGNUM,
+ R28_REGNUM, R29_REGNUM, R30_REGNUM, R31_REGNUM
+};
+
+enum { /* Sparc32 control registers. */
+ PS_REGNUM = 65, /* PC, NPC, and Y are omitted because */
+ WIM_REGNUM = 66, /* they have different values depending on */
+ TBR_REGNUM = 67, /* 32-bit / 64-bit mode. */
+ FPS_REGNUM = 70,
+ CPS_REGNUM = 71
+};
+
+/* v9 misc. and priv. regs */
+
+/* Note: specifying values explicitly for documentation purposes. */
+enum { /* Sparc64 control registers, excluding Y, PC, and NPC. */
+ CCR_REGNUM = 82, /* Condition Code Register (%xcc,%icc) */
+ FSR_REGNUM = 83, /* Floating Point State */
+ FPRS_REGNUM = 84, /* Floating Point Registers State */
+ ASI_REGNUM = 86, /* Alternate Space Identifier */
+ VER_REGNUM = 87, /* Version register */
+ TICK_REGNUM = 88, /* Tick register */
+ PIL_REGNUM = 89, /* Processor Interrupt Level */
+ PSTATE_REGNUM = 90, /* Processor State */
+ TSTATE_REGNUM = 91, /* Trap State */
+ TBA_REGNUM = 92, /* Trap Base Address */
+ TL_REGNUM = 93, /* Trap Level */
+ TT_REGNUM = 94, /* Trap Type */
+ TPC_REGNUM = 95, /* Trap pc */
+ TNPC_REGNUM = 96, /* Trap npc */
+ WSTATE_REGNUM = 97, /* Window State */
+ CWP_REGNUM = 98, /* Current Window Pointer */
+ CANSAVE_REGNUM = 99, /* Savable Windows */
+ CANRESTORE_REGNUM = 100, /* Restorable Windows */
+ CLEANWIN_REGNUM = 101, /* Clean Windows */
+ OTHERWIN_REGNUM = 102, /* Other Windows */
+ ASR16_REGNUM = 103, /* Ancillary State Registers */
+ ASR17_REGNUM = 104,
+ ASR18_REGNUM = 105,
+ ASR19_REGNUM = 106,
+ ASR20_REGNUM = 107,
+ ASR21_REGNUM = 108,
+ ASR22_REGNUM = 109,
+ ASR23_REGNUM = 110,
+ ASR24_REGNUM = 111,
+ ASR25_REGNUM = 112,
+ ASR26_REGNUM = 113,
+ ASR27_REGNUM = 114,
+ ASR28_REGNUM = 115,
+ ASR29_REGNUM = 116,
+ ASR30_REGNUM = 117,
+ ASR31_REGNUM = 118,
+ ICC_REGNUM = 119, /* 32 bit condition codes */
+ XCC_REGNUM = 120, /* 64 bit condition codes */
+ FCC0_REGNUM = 121, /* fp cc reg 0 */
+ FCC1_REGNUM = 122, /* fp cc reg 1 */
+ FCC2_REGNUM = 123, /* fp cc reg 2 */
+ FCC3_REGNUM = 124 /* fp cc reg 3 */
+};
- For binary from SunOS4 /bin/cc, need to correct LBRAC's.
+/*
+ * Make sparc target multi-archable: April 2000
+ */
- For gcc, like acc, don't correct. */
+#if defined (GDB_MULTI_ARCH) && (GDB_MULTI_ARCH > 0)
+
+/* Multi-arch definition of TARGET_IS_SPARC64, TARGET_ELF64 */
+#undef GDB_TARGET_IS_SPARC64
+#define GDB_TARGET_IS_SPARC64 \
+ (sparc_intreg_size () == 8)
+#undef TARGET_ELF64
+#define TARGET_ELF64 \
+ (sparc_intreg_size () == 8)
+extern int sparc_intreg_size (void);
+#else
+
+/* Non-multi-arch: if it isn't defined, define it to zero. */
+#ifndef GDB_TARGET_IS_SPARC64
+#define GDB_TARGET_IS_SPARC64 0
+#endif
+#ifndef TARGET_ELF64
+#define TARGET_ELF64 0
+#endif
+#endif
-#define SUN_FIXED_LBRAC_BUG \
- (n_opt_found \
- || function_stab_type == N_STSYM \
- || function_stab_type == N_GSYM \
- || processing_gcc_compilation)
+#if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
+/*
+ * The following defines must go away for MULTI_ARCH
+ */
-/* Do variables in the debug stabs occur after the N_LBRAC or before it?
- acc: after, gcc: before, SunOS4 /bin/cc: before. */
+/* Initializer for an array of names of registers.
+ There should be NUM_REGS strings in this initializer. */
-#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) \
- (!(gcc_p) \
- && (n_opt_found \
- || function_stab_type == N_STSYM \
- || function_stab_type == N_GSYM))
+#define REGISTER_NAMES \
+{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
+ "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", \
+ "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \
+ "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", \
+ \
+ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
+ "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
+ "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
+ "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
+ \
+ "y", "psr", "wim", "tbr", "pc", "npc", "fpsr", "cpsr" \
+}
/* 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. SKIP_PROLOGUE_FRAMELESS_P advances
- the PC past some of the prologue, but stops as soon as it
- knows that the function has a frame. Its result is equal
- to its input PC if the function is frameless, unequal otherwise. */
-
-#define SKIP_PROLOGUE(pc) (sparc_skip_prologue (pc, 0))
-#define SKIP_PROLOGUE_FRAMELESS_P(pc) (sparc_skip_prologue (pc, 1))
-extern CORE_ADDR sparc_skip_prologue PARAMS ((CORE_ADDR, int));
-
-/* 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. */
-
-/* On the Sun 4 under SunOS, the compile will leave a fake insn which
- encodes the structure size being returned. If we detect such
- a fake insn, step past it. */
-
-#define PC_ADJUST(pc) sparc_pc_adjust(pc)
-extern CORE_ADDR sparc_pc_adjust PARAMS ((CORE_ADDR));
-
-#define SAVED_PC_AFTER_CALL(frame) PC_ADJUST (read_register (RP_REGNUM))
-
-/* Stack grows downward. */
-
-#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
-
-/* Stack must be aligned on 64-bit boundaries when synthesizing
- function calls. */
-
-#define STACK_ALIGN(ADDR) (((ADDR) + 7) & -8)
-
-/* Sequence of bytes for breakpoint instruction (ta 1). */
-
-#define BREAKPOINT {0x91, 0xd0, 0x20, 0x01}
-
/* Amount PC must be decremented by after a breakpoint.
This is often the number of bytes in BREAKPOINT
but not always. */
#define NUM_REGS 72
-/* Initializer for an array of names of registers.
- There should be NUM_REGS strings in this initializer. */
-
-#define REGISTER_NAMES \
-{ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
- "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", \
- "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \
- "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", \
- \
- "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
- "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
- "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
- "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
- \
- "y", "psr", "wim", "tbr", "pc", "npc", "fpsr", "cpsr" }
-
-/* 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 G0_REGNUM 0 /* %g0 */
-#define G1_REGNUM 1 /* %g1 */
-#define O0_REGNUM 8 /* %o0 */
#define SP_REGNUM 14 /* Contains address of top of stack, \
which is also the bottom of the frame. */
-#define RP_REGNUM 15 /* Contains return address value, *before* \
- any windows get switched. */
-#define O7_REGNUM 15 /* Last local reg not saved on stack frame */
-#define L0_REGNUM 16 /* First local reg that's saved on stack frame
- rather than in machine registers */
-#define I0_REGNUM 24 /* %i0 */
-#define FP_REGNUM 30 /* Contains address of executing stack frame */
-#define I7_REGNUM 31 /* Last local reg saved on stack frame */
+#define DEPRECATED_FP_REGNUM 30 /* Contains address of executing stack frame */
+
#define FP0_REGNUM 32 /* Floating point register 0 */
+
#define Y_REGNUM 64 /* Temp register for multiplication, etc. */
-#define PS_REGNUM 65 /* Contains processor status */
-#define PS_FLAG_CARRY 0x100000 /* Carry bit in PS */
-#define WIM_REGNUM 66 /* Window Invalid Mask (not really supported) */
-#define TBR_REGNUM 67 /* Trap Base Register (not really supported) */
+
#define PC_REGNUM 68 /* Contains program counter */
+
#define NPC_REGNUM 69 /* Contains next PC */
-#define FPS_REGNUM 70 /* Floating point status register */
-#define CPS_REGNUM 71 /* Coprocessor status register */
+
/* Total amount of space needed to store our copies of the machine's
register state, the array `registers'. On the sparc, `registers'
contains the ins and locals, even though they are saved on the
stack rather than with the other registers, and this causes hair
- and confusion in places like pop_frame. It might be
- better to remove the ins and locals from `registers', make sure
- that get_saved_register can get them from the stack (even in the
- innermost frame), and make this the way to access them. For the
- frame pointer we would do that via TARGET_READ_FP. On the other hand,
- that is likely to be confusing or worse for flat frames. */
+ and confusion in places like pop_frame. It might be better to
+ remove the ins and locals from `registers', make sure that
+ frame_register() can get them from the stack (even in the innermost
+ frame), and make this the way to access them. For the frame
+ pointer we would do that via DEPRECATED_TARGET_READ_FP. On the
+ other hand, that is likely to be confusing or worse for flat
+ frames. */
#define REGISTER_BYTES (32*4+32*4+8*4)
/* Index within `registers' of the first byte of the space for
register N. */
-/* ?? */
-#define REGISTER_BYTE(N) ((N)*4)
-
-/* We need to override GET_SAVED_REGISTER so that we can deal with the way
- outs change into ins in different frames. HAVE_REGISTER_WINDOWS can't
- deal with this case and also handle flat frames at the same time. */
-struct frame_info;
-void sparc_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADDR * addrp, struct frame_info * frame, int regnum, enum lval_type * lvalp));
-#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
- sparc_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
+#define REGISTER_BYTE(N) ((N)*4)
-/* Number of bytes of storage in the actual machine representation
- for register N. */
+/* Number of bytes of storage in the actual machine representation for
+ register N. */
-/* On the SPARC, all regs are 4 bytes. */
+/* On the SPARC, all regs are 4 bytes (except Sparc64, where they're 8). */
#define REGISTER_RAW_SIZE(N) (4)
/* Number of bytes of storage in the program's representation
for register N. */
-/* On the SPARC, all regs are 4 bytes. */
+/* On the SPARC, all regs are 4 bytes (except Sparc64, where they're 8). */
#define REGISTER_VIRTUAL_SIZE(N) (4)
/* Largest value REGISTER_RAW_SIZE can have. */
-#define MAX_REGISTER_RAW_SIZE 8
+#define DEPRECATED_MAX_REGISTER_RAW_SIZE 8
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
-#define MAX_REGISTER_VIRTUAL_SIZE 8
+#define DEPRECATED_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) < 32 ? builtin_type_int : (N) < 64 ? builtin_type_float : \
- builtin_type_int)
+ ((N) < 32 ? builtin_type_int : (N) < 64 ? builtin_type_float : \
+ builtin_type_int)
-/* Writing to %g0 is a noop (not an error or exception or anything like
- that, however). */
+/* Sun /bin/cc gets this right as of SunOS 4.1.x. We need to define
+ BELIEVE_PCC_PROMOTION to get this right now that the code which
+ detects gcc2_compiled. is broken. This loses for SunOS 4.0.x and
+ earlier. */
-#define CANNOT_STORE_REGISTER(regno) ((regno) == G0_REGNUM)
+#define BELIEVE_PCC_PROMOTION 1
-/* Store the address of the place in which to copy the structure the
- subroutine will return. This is called from call_function_by_hand.
- The ultimate mystery is, tho, what is the value "16"? */
+/* Advance PC across any function entry prologue instructions
+ to reach some "real" code. */
-#define STORE_STRUCT_RETURN(ADDR, SP) \
- { char val[4]; \
- store_unsigned_integer (val, 4, (ADDR)); \
- write_memory ((SP)+(16*4), val, 4); }
+extern CORE_ADDR sparc_skip_prologue (CORE_ADDR);
+#define SKIP_PROLOGUE(PC) sparc_skip_prologue (PC)
-/* 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. */
+/* 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. */
-#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
- sparc_extract_return_value(TYPE, REGBUF, VALBUF)
-extern void
-sparc_extract_return_value PARAMS ((struct type *, char[], char *));
+#define DEPRECATED_SAVED_PC_AFTER_CALL(FRAME) PC_ADJUST (read_register (RP_REGNUM))
-/* Write into appropriate registers a function return value
- of type TYPE, given in virtual format. */
-#define STORE_RETURN_VALUE(TYPE,VALBUF) \
- sparc_store_return_value(TYPE, VALBUF)
-extern void sparc_store_return_value PARAMS ((struct type *, char *));
+/* Stack grows downward. */
+
+#define INNER_THAN(LHS,RHS) ((LHS) < (RHS))
+
+/* Write into appropriate registers a function return value of type
+ TYPE, given in virtual format. */
+
+#define DEPRECATED_STORE_RETURN_VALUE(TYPE, VALBUF) \
+ sparc_store_return_value (TYPE, VALBUF)
+extern void sparc_store_return_value (struct type *, char *);
/* 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 EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
- (sparc_extract_struct_value_address (REGBUF))
+#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+ sparc_extract_struct_value_address (REGBUF)
-extern CORE_ADDR
- sparc_extract_struct_value_address PARAMS ((char[REGISTER_BYTES]));
-\f
+extern CORE_ADDR sparc_extract_struct_value_address (char *);
-/* Describe the pointer in each stack frame to the previous stack frame
- (its caller). */
+/* Stack must be aligned on 64-bit boundaries when synthesizing
+ function calls (128-bit for sparc64). */
+
+#define STACK_ALIGN(ADDR) sparc32_stack_align (ADDR)
+extern CORE_ADDR sparc32_stack_align (CORE_ADDR addr);
-/* FRAME_CHAIN takes a frame's nominal address
- and produces the frame's chain-pointer. */
+/* The Sparc returns long doubles on the stack. */
-/* In the case of the Sun 4, the frame-chain's nominal address
- is held in the frame pointer register.
+#define RETURN_VALUE_ON_STACK(TYPE) \
+ (TYPE_CODE(TYPE) == TYPE_CODE_FLT \
+ && TYPE_LENGTH(TYPE) > 8)
- On the Sun4, the frame (in %fp) is %sp for the previous frame.
- From the previous frame's %sp, we can find the previous frame's
- %fp: it is in the save area just above the previous frame's %sp.
+/* When passing a structure to a function, Sun cc passes the address
+ not the structure itself. It (under SunOS4) creates two symbols,
+ which we need to combine to a LOC_REGPARM. Gcc version two (as of
+ 1.92) behaves like sun cc. REG_STRUCT_HAS_ADDR is smart enough to
+ distinguish between Sun cc, gcc version 1 and gcc version 2. */
- If we are setting up an arbitrary frame, we'll need to know where
- it ends. Hence the following. This part of the frame cache
- structure should be checked before it is assumed that this frame's
- bottom is in the stack pointer.
+#define REG_STRUCT_HAS_ADDR(GCC_P, TYPE) \
+ sparc_reg_struct_has_addr (GCC_P, TYPE)
+extern int sparc_reg_struct_has_addr (int, struct type *);
- If there isn't a frame below this one, the bottom of this frame is
- in the stack pointer.
+/* Is the prologue at PC frameless? */
+#define PROLOGUE_FRAMELESS_P(PC) sparc_prologue_frameless_p (PC)
+extern int sparc_prologue_frameless_p (CORE_ADDR);
- If there is a frame below this one, and the frame pointers are
- identical, it's a leaf frame and the bottoms are the same also.
+#endif /* GDB_MULTI_ARCH */
- Otherwise the bottom of this frame is the top of the next frame.
+#if defined (GDB_MULTI_ARCH) && (GDB_MULTI_ARCH > 0)
+/*
+ * The following defines should ONLY appear for MULTI_ARCH.
+ */
- The bottom field is misnamed, since it might imply that memory from
- bottom to frame contains this frame. That need not be true if
- stack frames are allocated in different segments (e.g. some on a
- stack, some on a heap in the data segment).
+/* Multi-arch the nPC and Y registers. */
+#define Y_REGNUM (sparc_y_regnum ())
+extern int sparc_npc_regnum (void);
+extern int sparc_y_regnum (void);
- GCC 2.6 and later can generate ``flat register window'' code that
- makes frames by explicitly saving those registers that need to be
- saved. %i7 is used as the frame pointer, and the frame is laid out so
- that flat and non-flat calls can be intermixed freely within a
- program. Unfortunately for GDB, this means it must detect and record
- the flatness of frames.
+#endif /* GDB_MULTI_ARCH */
- Since the prologue in a flat frame also tells us where fp and pc
- have been stashed (the frame is of variable size, so their location
- is not fixed), it's convenient to record them in the frame info. */
+/* On the Sun 4 under SunOS, the compile will leave a fake insn which
+ encodes the structure size being returned. If we detect such
+ a fake insn, step past it. */
-#define EXTRA_FRAME_INFO \
- CORE_ADDR bottom; \
- int in_prologue; \
- int flat; \
- /* Following fields only relevant for flat frames. */ \
- CORE_ADDR pc_addr; \
- CORE_ADDR fp_addr; \
- /* Add this to ->frame to get the value of the stack pointer at the */ \
- /* time of the register saves. */ \
- int sp_offset;
+#define PC_ADJUST(PC) sparc_pc_adjust (PC)
+extern CORE_ADDR sparc_pc_adjust (CORE_ADDR);
-#define FRAME_INIT_SAVED_REGS(fp) /*no-op */
+/* If an argument is declared "register", Sun cc will keep it in a register,
+ never saving it onto the stack. So we better not believe the "p" symbol
+ descriptor stab. */
-#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \
- sparc_init_extra_frame_info (fromleaf, fci)
-extern void sparc_init_extra_frame_info PARAMS ((int, struct frame_info *));
+#define USE_REGISTER_NOT_ARG
-#define PRINT_EXTRA_FRAME_INFO(fi) \
- { \
- if ((fi) && (fi)->flat) \
- printf_filtered (" flat, pc saved at 0x%s, fp saved at 0x%s\n", \
- paddr_nz ((fi)->pc_addr), paddr_nz ((fi)->fp_addr)); \
- }
+/* For acc, there's no need to correct LBRAC entries by guessing how
+ they should work. In fact, this is harmful because the LBRAC
+ entries now all appear at the end of the function, not intermixed
+ with the SLINE entries. n_opt_found detects acc for Solaris binaries;
+ function_stab_type detects acc for SunOS4 binaries.
-#define FRAME_CHAIN(thisframe) (sparc_frame_chain (thisframe))
-extern CORE_ADDR sparc_frame_chain PARAMS ((struct frame_info *));
+ For binary from SunOS4 /bin/cc, need to correct LBRAC's.
-/* INIT_EXTRA_FRAME_INFO needs the PC to detect flat frames. */
+ For gcc, like acc, don't correct. */
-#define INIT_FRAME_PC(fromleaf, prev) /* nothing */
-#define INIT_FRAME_PC_FIRST(fromleaf, prev) \
- (prev)->pc = ((fromleaf) ? SAVED_PC_AFTER_CALL ((prev)->next) : \
- (prev)->next ? FRAME_SAVED_PC ((prev)->next) : read_pc ());
+#define SUN_FIXED_LBRAC_BUG \
+ (n_opt_found \
+ || function_stab_type == N_STSYM \
+ || function_stab_type == N_GSYM \
+ || processing_gcc_compilation)
-/* Define other aspects of the stack frame. */
+/* Do variables in the debug stabs occur after the N_LBRAC or before it?
+ acc: after, gcc: before, SunOS4 /bin/cc: before. */
+
+#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) \
+ (!(gcc_p) \
+ && (n_opt_found \
+ || function_stab_type == N_STSYM \
+ || function_stab_type == N_GSYM))
+
+/* Sequence of bytes for breakpoint instruction (ta 1). */
+
+#define BREAKPOINT {0x91, 0xd0, 0x20, 0x01}
+
+/* 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 G0_REGNUM 0 /* %g0 */
+#define G1_REGNUM 1 /* %g1 */
+#define O0_REGNUM 8 /* %o0 */
+#define RP_REGNUM 15 /* Contains return address value, *before* \
+ any windows get switched. */
+#define O7_REGNUM 15 /* Last local reg not saved on stack frame */
+#define L0_REGNUM 16 /* First local reg that's saved on stack frame
+ rather than in machine registers */
+#define I0_REGNUM 24 /* %i0 */
+#define I7_REGNUM 31 /* Last local reg saved on stack frame */
+#define PS_REGNUM 65 /* Contains processor status */
+#define PS_FLAG_CARRY 0x100000 /* Carry bit in PS */
+#define WIM_REGNUM 66 /* Window Invalid Mask (not really supported) */
+#define TBR_REGNUM 67 /* Trap Base Register (not really supported) */
+#define FPS_REGNUM 70 /* Floating point status register */
+#define CPS_REGNUM 71 /* Coprocessor status register */
+
+/* Writing to %g0 is a noop (not an error or exception or anything like
+ that, however). */
+
+#define CANNOT_STORE_REGISTER(regno) ((regno) == G0_REGNUM)
+
+/*
+ * DEPRECATED_FRAME_CHAIN and FRAME_INFO definitions, collected here
+ * for convenience. */
+
+#if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
+/*
+ * The following defines must go away for MULTI_ARCH.
+ */
+
+/* Describe the pointer in each stack frame to the previous stack frame
+ (its caller). */
+
+/* DEPRECATED_FRAME_CHAIN takes a frame's nominal address and produces
+ the frame's chain-pointer. */
+
+/* We need to override DEPRECATED_GET_SAVED_REGISTER so that we can
+ deal with the way outs change into ins in different frames. */
+
+void sparc_get_saved_register (char *raw_buffer,
+ int *optimized,
+ CORE_ADDR * addrp,
+ struct frame_info *frame,
+ int regnum, enum lval_type *lvalp);
+
+#define DEPRECATED_GET_SAVED_REGISTER(RAW_BUFFER, OPTIMIZED, ADDRP, FRAME, REGNUM, LVAL) \
+ sparc_get_saved_register (RAW_BUFFER, OPTIMIZED, ADDRP, \
+ FRAME, REGNUM, LVAL)
+
+#define DEPRECATED_FRAME_INIT_SAVED_REGS(FP) /*no-op */
+
+#define DEPRECATED_INIT_EXTRA_FRAME_INFO(FROMLEAF, FCI) \
+ sparc_init_extra_frame_info (FROMLEAF, FCI)
+extern void sparc_init_extra_frame_info (int, struct frame_info *);
+
+#define DEPRECATED_FRAME_CHAIN(THISFRAME) (sparc_frame_chain (THISFRAME))
+extern CORE_ADDR sparc_frame_chain (struct frame_info *);
/* 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_look_for_prologue(FI))
-/* The location of I0 w.r.t SP. This is actually dependent on how the system's
- window overflow/underflow routines are written. Most vendors save the L regs
- followed by the I regs (at the higher address). Some vendors get it wrong.
- */
-
-#define FRAME_SAVED_L0 0
-#define FRAME_SAVED_I0 (8 * REGISTER_RAW_SIZE (L0_REGNUM))
+#define FRAMELESS_FUNCTION_INVOCATION(FI) \
+ frameless_look_for_prologue (FI)
/* Where is the PC for a specific frame */
-#define FRAME_SAVED_PC(FRAME) sparc_frame_saved_pc (FRAME)
-extern CORE_ADDR sparc_frame_saved_pc PARAMS ((struct frame_info *));
+#define DEPRECATED_FRAME_SAVED_PC(FRAME) sparc_frame_saved_pc (FRAME)
+extern CORE_ADDR sparc_frame_saved_pc (struct frame_info *);
/* If the argument is on the stack, it will be here. */
-#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
+#define FRAME_ARGS_ADDRESS(FI) (get_frame_base (FI))
-#define FRAME_STRUCT_ARGS_ADDRESS(fi) ((fi)->frame)
-
-#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+#define FRAME_LOCALS_ADDRESS(FI) (get_frame_base (FI))
/* 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)
+#define FRAME_NUM_ARGS(FI) (-1)
/* Return number of bytes at start of arglist that are not really args. */
#define FRAME_ARGS_SKIP 68
-\f
+
+#endif /* GDB_MULTI_ARCH */
+
+#define PRINT_EXTRA_FRAME_INFO(FI) \
+ sparc_print_extra_frame_info (FI)
+extern void sparc_print_extra_frame_info (struct frame_info *);
+
+/* DEPRECATED_INIT_EXTRA_FRAME_INFO needs the PC to detect flat
+ frames. */
+
+/* NOTE: cagney/2002-12-08: Add local declaration of
+ init_frame_pc_noop() because it isn't possible to include
+ "arch-utils.h" here. */
+extern CORE_ADDR init_frame_pc_noop (int fromleaf, struct frame_info *prev);
+#define DEPRECATED_INIT_FRAME_PC(FROMLEAF, PREV) (init_frame_pc_noop (FROMLEAF, PREV))
+#define DEPRECATED_INIT_FRAME_PC_FIRST(FROMLEAF, PREV) \
+ ((FROMLEAF) ? DEPRECATED_SAVED_PC_AFTER_CALL ((PREV)->next) : \
+ (PREV)->next ? DEPRECATED_FRAME_SAVED_PC ((PREV)->next) : read_pc ())
+
+/* Define other aspects of the stack frame. */
+
+/* The location of I0 w.r.t SP. This is actually dependent on how the
+ system's window overflow/underflow routines are written. Most
+ vendors save the L regs followed by the I regs (at the higher
+ address). Some vendors get it wrong. */
+
+#define FRAME_SAVED_L0 0
+#define FRAME_SAVED_I0 (8 * REGISTER_RAW_SIZE (L0_REGNUM))
+
+#define FRAME_STRUCT_ARGS_ADDRESS(FI) (get_frame_base (FI))
+
/* Things needed for making the inferior call functions. */
/*
* First of all, let me give my opinion of what the DUMMY_FRAME
* I understand everything in this picture except what the space
* between fp - 0xe0 and fp - 0x140 is used for. Oh, and I don't
* understand why there's a large chunk of CALL_DUMMY that never gets
- * executed (its function is superceeded by PUSH_DUMMY_FRAME; they
- * are designed to do the same thing).
+ * executed (its function is superceeded by
+ * DEPRECATED_PUSH_DUMMY_FRAME; they are designed to do the same
+ * thing).
*
- * PUSH_DUMMY_FRAME saves the registers above sp' and pushes the
- * register file stack down one.
+ * DEPRECATED_PUSH_DUMMY_FRAME saves the registers above sp' and
+ * pushes the * register file stack down one.
*
* call_function then writes CALL_DUMMY, pushes the args onto the
* stack, and adjusts the stack pointer.
- *
- * run_stack_dummy then starts execution (in the middle of
- * CALL_DUMMY, as directed by call_function).
- */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-#define PUSH_DUMMY_FRAME sparc_push_dummy_frame ()
-#define POP_FRAME sparc_pop_frame ()
-
-void sparc_push_dummy_frame PARAMS ((void)), sparc_pop_frame PARAMS ((void));
+
+ call_function_by_hand then starts execution (in the middle of
+ CALL_DUMMY, as directed by call_function). */
#ifndef CALL_DUMMY
/* This sequence of words is the instructions
- 0: bc 10 00 01 mov %g1, %fp
- 4: 9d e3 80 00 save %sp, %g0, %sp
- 8: bc 10 00 02 mov %g2, %fp
- c: be 10 00 03 mov %g3, %i7
+ 00: bc 10 00 01 mov %g1, %fp
+ 04: 9d e3 80 00 save %sp, %g0, %sp
+ 08: bc 10 00 02 mov %g2, %fp
+ 0c: be 10 00 03 mov %g3, %i7
10: da 03 a0 58 ld [ %sp + 0x58 ], %o5
14: d8 03 a0 54 ld [ %sp + 0x54 ], %o4
18: d6 03 a0 50 ld [ %sp + 0x50 ], %o3
* this is a multiple of 8 (not only 4) bytes.
* the `call' insn is a relative, not an absolute call.
* the `nop' at the end is needed to keep the trap from
- clobbering things (if NPC pointed to garbage instead).
+ clobbering things (if NPC pointed to garbage instead).
+ */
+
+#if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
+/*
+ * The following defines must go away for MULTI_ARCH.
*/
#define CALL_DUMMY { 0xbc100001, 0x9de38000, 0xbc100002, 0xbe100003, \
#define CALL_DUMMY_CALL_OFFSET (CALL_DUMMY_START_OFFSET + 0x24)
-/* Offset within CALL_DUMMY of the 'ta 1' instruction. */
+/* Offset within CALL_DUMMY of the 'ta 1' trap instruction. */
#define CALL_DUMMY_BREAKPOINT_OFFSET (CALL_DUMMY_START_OFFSET + 0x30)
-#define CALL_DUMMY_STACK_ADJUST 68
+#define DEPRECATED_CALL_DUMMY_STACK_ADJUST 68
+
+/* Call dummy method (eg. on stack, at entry point, etc.) */
+
+#define CALL_DUMMY_LOCATION ON_STACK
+
+/* Method for detecting dummy frames. */
+
+#define DEPRECATED_PC_IN_CALL_DUMMY(PC, SP, FRAME_ADDRESS) \
+ deprecated_pc_in_call_dummy_on_stack (PC, SP, FRAME_ADDRESS)
+
+#endif /* GDB_MULTI_ARCH */
+
+#endif /* CALL_DUMMY */
+
+#if !defined (GDB_MULTI_ARCH) || (GDB_MULTI_ARCH == 0)
+/*
+ * The following defines must go away for MULTI_ARCH.
+ */
-#endif
/* Insert the specified number of args and function address
into a call sequence of the above form stored at DUMMYNAME. */
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
- sparc_fix_call_dummy (dummyname, pc, fun, type, gcc_p)
-void sparc_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun,
- struct type * value_type, int using_gcc));
+#define FIX_CALL_DUMMY(DUMMYNAME, PC, FUN, NARGS, ARGS, TYPE, GCC_P) \
+ sparc_fix_call_dummy (DUMMYNAME, PC, FUN, TYPE, GCC_P)
+void sparc_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun,
+ struct type *value_type, int using_gcc);
-/* The Sparc returns long doubles on the stack. */
+/* Arguments smaller than an int must be promoted to ints when
+ synthesizing function calls. */
+
+/* Push an empty stack frame, to record the current PC, etc. */
+
+#define DEPRECATED_PUSH_DUMMY_FRAME sparc_push_dummy_frame ()
+#define DEPRECATED_POP_FRAME sparc_pop_frame ()
+
+void sparc_push_dummy_frame (void);
+void sparc_pop_frame (void);
+
+#define DEPRECATED_PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
+ sparc32_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
+
+extern CORE_ADDR sparc32_push_arguments (int, struct value **, CORE_ADDR, int,
+ CORE_ADDR);
+
+/* Store the address of the place in which to copy the structure the
+ subroutine will return. This is called from call_function_by_hand.
+ The ultimate mystery is, tho, what is the value "16"? */
+
+#define STORE_STRUCT_RETURN(ADDR, SP) \
+ { char val[4]; \
+ store_unsigned_integer (val, 4, (ADDR)); \
+ write_memory ((SP)+(16*4), val, 4); }
+
+/* Default definition of USE_STRUCT_CONVENTION. */
+
+#ifndef USE_STRUCT_CONVENTION
+#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
+ generic_use_struct_convention (GCC_P, TYPE)
+#endif
+
+/* 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. */
+
+#define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
+ sparc32_extract_return_value (TYPE, REGBUF, VALBUF)
+extern void sparc32_extract_return_value (struct type *, char[], char *);
+
+#endif /* GDB_MULTI_ARCH */
-#define RETURN_VALUE_ON_STACK(TYPE) \
- (TYPE_CODE(TYPE) == TYPE_CODE_FLT \
- && TYPE_LENGTH(TYPE) > 8)
\f
/* Sparc has no reliable single step ptrace call */
-#define SOFTWARE_SINGLE_STEP_P 1
-extern void sparc_software_single_step PARAMS ((unsigned int, int));
+#define SOFTWARE_SINGLE_STEP_P() 1
+extern void sparc_software_single_step (enum target_signal, int);
#define SOFTWARE_SINGLE_STEP(sig,bp_p) sparc_software_single_step (sig,bp_p)
/* We need more arguments in a frame specification for the
"frame" or "info frame" command. */
#define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
-extern struct frame_info *setup_arbitrary_frame PARAMS ((int, CORE_ADDR *));
-
-/* To print every pair of float registers as a double, we use this hook.
- We also print the condition code registers in a readable format
- (FIXME: can expand this to all control regs). */
-
-#undef PRINT_REGISTER_HOOK
-#define PRINT_REGISTER_HOOK(regno) \
- sparc_print_register_hook (regno)
-extern void sparc_print_register_hook PARAMS ((int regno));
+extern struct frame_info *setup_arbitrary_frame (int, CORE_ADDR *);
+extern void sparc_do_registers_info (int regnum, int all);
+#undef DEPRECATED_DO_REGISTERS_INFO
+#define DEPRECATED_DO_REGISTERS_INFO(REGNUM,ALL) sparc_do_registers_info (REGNUM, ALL)
/* Optimization for storing registers to the inferior. The hook
DO_DEFERRED_STORES
#define CLEAR_DEFERRED_STORES \
deferred_stores = 0;
-/* 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. */
-
-#define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1)
-
/* Select the sparc disassembler */
#define TM_PRINT_INSN_MACH bfd_mach_sparc
-/* Arguments smaller than an int must promoted to ints when synthesizing
- function calls. */
-
-#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
- (sparc_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr)))
-extern CORE_ADDR
- sparc_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
+#define DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED 1
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