/* Target-dependent code for the SPARC for GDB, the GNU debugger.
- Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997
- Free Software Foundation, Inc.
+
+ Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
+ Inc.
This file is part of GDB.
/* ??? Support for calling functions from gdb in sparc64 is unfinished. */
#include "defs.h"
+#include "arch-utils.h"
#include "frame.h"
#include "inferior.h"
-#include "obstack.h"
#include "target.h"
#include "value.h"
#include "bfd.h"
#include "gdb_string.h"
+#include "regcache.h"
+#include "osabi.h"
#ifdef USE_PROC_FS
#include <sys/procfs.h>
+/* Prototypes for supply_gregset etc. */
+#include "gregset.h"
#endif
#include "gdbcore.h"
+#include "symfile.h" /* for 'entry_point_address' */
+
+/*
+ * Some local macros that have multi-arch and non-multi-arch versions:
+ */
+
+#if (GDB_MULTI_ARCH > 0)
+
+/* Does the target have Floating Point registers? */
+#define SPARC_HAS_FPU (gdbarch_tdep (current_gdbarch)->has_fpu)
+/* Number of bytes devoted to Floating Point registers: */
+#define FP_REGISTER_BYTES (gdbarch_tdep (current_gdbarch)->fp_register_bytes)
+/* Highest numbered Floating Point register. */
+#define FP_MAX_REGNUM (gdbarch_tdep (current_gdbarch)->fp_max_regnum)
+/* Size of a general (integer) register: */
+#define SPARC_INTREG_SIZE (gdbarch_tdep (current_gdbarch)->intreg_size)
+/* Offset within the call dummy stack of the saved registers. */
+#define DUMMY_REG_SAVE_OFFSET (gdbarch_tdep (current_gdbarch)->reg_save_offset)
+
+#else /* non-multi-arch */
+
+
+/* Does the target have Floating Point registers? */
#if defined(TARGET_SPARCLET) || defined(TARGET_SPARCLITE)
#define SPARC_HAS_FPU 0
#else
#define SPARC_HAS_FPU 1
#endif
-#ifdef GDB_TARGET_IS_SPARC64
+/* Number of bytes devoted to Floating Point registers: */
+#if (GDB_TARGET_IS_SPARC64)
#define FP_REGISTER_BYTES (64 * 4)
-#else
+#else
#if (SPARC_HAS_FPU)
#define FP_REGISTER_BYTES (32 * 4)
#else
#endif
#endif
-/* If not defined, assume 32 bit sparc. */
-#ifndef FP_MAX_REGNUM
+/* Highest numbered Floating Point register. */
+#if (GDB_TARGET_IS_SPARC64)
+#define FP_MAX_REGNUM (FP0_REGNUM + 48)
+#else
#define FP_MAX_REGNUM (FP0_REGNUM + 32)
#endif
+/* Size of a general (integer) register: */
#define SPARC_INTREG_SIZE (REGISTER_RAW_SIZE (G0_REGNUM))
+/* Offset within the call dummy stack of the saved registers. */
+#if (GDB_TARGET_IS_SPARC64)
+#define DUMMY_REG_SAVE_OFFSET (128 + 16)
+#else
+#define DUMMY_REG_SAVE_OFFSET 0x60
+#endif
+
+#endif /* GDB_MULTI_ARCH */
+
+struct gdbarch_tdep
+ {
+ int has_fpu;
+ int fp_register_bytes;
+ int y_regnum;
+ int fp_max_regnum;
+ int intreg_size;
+ int reg_save_offset;
+ int call_dummy_call_offset;
+ int print_insn_mach;
+ };
+
+/* Now make GDB_TARGET_IS_SPARC64 a runtime test. */
+/* FIXME MVS: or try testing bfd_arch_info.arch and bfd_arch_info.mach ...
+ * define GDB_TARGET_IS_SPARC64 \
+ * (TARGET_ARCHITECTURE->arch == bfd_arch_sparc && \
+ * (TARGET_ARCHITECTURE->mach == bfd_mach_sparc_v9 || \
+ * TARGET_ARCHITECTURE->mach == bfd_mach_sparc_v9a))
+ */
+
/* From infrun.c */
extern int stop_after_trap;
track of which sets of registers we have locally-changed copies of,
so we only need send the groups that have changed. */
-int deferred_stores = 0; /* Cumulates stores we want to do eventually. */
+int deferred_stores = 0; /* Accumulated stores we want to do eventually. */
/* Some machines, such as Fujitsu SPARClite 86x, have a bi-endian mode
such as sparc86x, instructions are always big-endian. */
static unsigned long
-fetch_instruction (pc)
- CORE_ADDR pc;
+fetch_instruction (CORE_ADDR pc)
{
unsigned long retval;
int i;
typedef enum
{
- Error, not_branch, bicc, bicca, ba, baa, ticc, ta,
-#ifdef GDB_TARGET_IS_SPARC64
- done_retry
-#endif
-}
-branch_type;
+ Error, not_branch, bicc, bicca, ba, baa, ticc, ta, done_retry
+} branch_type;
/* Simulate single-step ptrace call for sun4. Code written by Gary
Beihl (beihl@mcc.com). */
typedef char binsn_quantum[BREAKPOINT_MAX];
static binsn_quantum break_mem[3];
-static branch_type isbranch PARAMS ((long, CORE_ADDR, CORE_ADDR *));
+static branch_type isbranch (long, CORE_ADDR, CORE_ADDR *);
/* single_step() is called just before we want to resume the inferior,
if we want to single-step it but there is no hardware or kernel single-step
set up a simulated single-step, we undo our damage. */
void
-sparc_software_single_step (ignore, insert_breakpoints_p)
- enum target_signal ignore; /* pid, but we don't need it */
- int insert_breakpoints_p;
+sparc_software_single_step (enum target_signal ignore, /* pid, but we don't need it */
+ int insert_breakpoints_p)
{
branch_type br;
CORE_ADDR pc;
brktrg = 1;
target_insert_breakpoint (target, break_mem[2]);
}
-#ifdef GDB_TARGET_IS_SPARC64
- else if (br == done_retry)
+ else if (GDB_TARGET_IS_SPARC64 && br == done_retry)
{
brktrg = 1;
target_insert_breakpoint (target, break_mem[2]);
}
-#endif
}
else
{
}
}
\f
-/* Call this for each newly created frame. For SPARC, we need to calculate
- the bottom of the frame, and do some extra work if the prologue
- has been generated via the -mflat option to GCC. In particular,
- we need to know where the previous fp and the pc have been stashed,
- since their exact position within the frame may vary. */
+struct frame_extra_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;
+};
+
+/* Call this for each newly created frame. For SPARC, we need to
+ calculate the bottom of the frame, and do some extra work if the
+ prologue has been generated via the -mflat option to GCC. In
+ particular, we need to know where the previous fp and the pc have
+ been stashed, since their exact position within the frame may vary. */
void
-sparc_init_extra_frame_info (fromleaf, fi)
- int fromleaf;
- struct frame_info *fi;
+sparc_init_extra_frame_info (int fromleaf, struct frame_info *fi)
{
char *name;
CORE_ADDR prologue_start, prologue_end;
int insn;
- fi->bottom =
- (fi->next ?
- (fi->frame == fi->next->frame ? fi->next->bottom : fi->next->frame) :
- read_sp ());
+ frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
+ frame_saved_regs_zalloc (fi);
+
+ get_frame_extra_info (fi)->bottom =
+ (get_next_frame (fi)
+ ? (get_frame_base (fi) == get_frame_base (get_next_frame (fi))
+ ? get_frame_extra_info (get_next_frame (fi))->bottom
+ : get_frame_base (get_next_frame (fi)))
+ : read_sp ());
/* If fi->next is NULL, then we already set ->frame by passing read_fp()
to create_new_frame. */
- if (fi->next)
+ if (get_next_frame (fi))
{
- char buf[MAX_REGISTER_RAW_SIZE];
+ char *buf;
+
+ buf = alloca (MAX_REGISTER_RAW_SIZE);
/* Compute ->frame as if not flat. If it is flat, we'll change
it later. */
- if (fi->next->next != NULL
- && (fi->next->next->signal_handler_caller
- || frame_in_dummy (fi->next->next))
- && frameless_look_for_prologue (fi->next))
+ if (get_next_frame (get_next_frame (fi)) != NULL
+ && ((get_frame_type (get_next_frame (get_next_frame (fi))) == SIGTRAMP_FRAME)
+ || deprecated_frame_in_dummy (get_next_frame (get_next_frame (fi))))
+ && frameless_look_for_prologue (get_next_frame (fi)))
{
/* A frameless function interrupted by a signal did not change
the frame pointer, fix up frame pointer accordingly. */
- fi->frame = FRAME_FP (fi->next);
- fi->bottom = fi->next->bottom;
+ deprecated_update_frame_base_hack (fi, get_frame_base (get_next_frame (fi)));
+ get_frame_extra_info (fi)->bottom =
+ get_frame_extra_info (get_next_frame (fi))->bottom;
}
else
{
/* Should we adjust for stack bias here? */
get_saved_register (buf, 0, 0, fi, FP_REGNUM, 0);
- fi->frame = extract_address (buf, REGISTER_RAW_SIZE (FP_REGNUM));
-#ifdef GDB_TARGET_IS_SPARC64
- if (fi->frame & 1)
- fi->frame += 2047;
-#endif
+ deprecated_update_frame_base_hack (fi, extract_address (buf, REGISTER_RAW_SIZE (FP_REGNUM)));
+ if (GDB_TARGET_IS_SPARC64 && (get_frame_base (fi) & 1))
+ deprecated_update_frame_base_hack (fi, get_frame_base (fi) + 2047);
}
}
/* Decide whether this is a function with a ``flat register window''
frame. For such functions, the frame pointer is actually in %i7. */
- fi->flat = 0;
- fi->in_prologue = 0;
- if (find_pc_partial_function (fi->pc, &name, &prologue_start, &prologue_end))
+ get_frame_extra_info (fi)->flat = 0;
+ get_frame_extra_info (fi)->in_prologue = 0;
+ if (find_pc_partial_function (get_frame_pc (fi), &name, &prologue_start, &prologue_end))
{
/* See if the function starts with an add (which will be of a
negative number if a flat frame) to the sp. FIXME: Does not
handle large frames which will need more than one instruction
to adjust the sp. */
- insn = fetch_instruction (prologue_start, 4);
+ insn = fetch_instruction (prologue_start);
if (X_OP (insn) == 2 && X_RD (insn) == 14 && X_OP3 (insn) == 0
&& X_I (insn) && X_SIMM13 (insn) < 0)
{
&& X_OP3 (insn) == 4
&& X_RS1 (insn) == 14)
{
- char buf[MAX_REGISTER_RAW_SIZE];
+ char *buf;
+
+ buf = alloca (MAX_REGISTER_RAW_SIZE);
/* We definitely have a flat frame now. */
- fi->flat = 1;
+ get_frame_extra_info (fi)->flat = 1;
- fi->sp_offset = offset;
+ get_frame_extra_info (fi)->sp_offset = offset;
/* Overwrite the frame's address with the value in %i7. */
get_saved_register (buf, 0, 0, fi, I7_REGNUM, 0);
- fi->frame = extract_address (buf, REGISTER_RAW_SIZE (I7_REGNUM));
-#ifdef GDB_TARGET_IS_SPARC64
- if (fi->frame & 1)
- fi->frame += 2047;
-#endif
+ deprecated_update_frame_base_hack (fi, extract_address (buf, REGISTER_RAW_SIZE (I7_REGNUM)));
+
+ if (GDB_TARGET_IS_SPARC64 && (get_frame_base (fi) & 1))
+ deprecated_update_frame_base_hack (fi, get_frame_base (fi) + 2047);
+
/* Record where the fp got saved. */
- fi->fp_addr = fi->frame + fi->sp_offset + X_SIMM13 (insn);
+ get_frame_extra_info (fi)->fp_addr =
+ get_frame_base (fi) + get_frame_extra_info (fi)->sp_offset + X_SIMM13 (insn);
/* Also try to collect where the pc got saved to. */
- fi->pc_addr = 0;
+ get_frame_extra_info (fi)->pc_addr = 0;
insn = fetch_instruction (prologue_start + 12);
if (X_OP (insn) == 3
&& X_RD (insn) == 15
&& X_OP3 (insn) == 4
&& X_RS1 (insn) == 14)
- fi->pc_addr = fi->frame + fi->sp_offset + X_SIMM13 (insn);
+ get_frame_extra_info (fi)->pc_addr =
+ get_frame_base (fi) + get_frame_extra_info (fi)->sp_offset + X_SIMM13 (insn);
}
}
else
sal = find_pc_line (prologue_start, 0);
if (sal.line == 0) /* no line info, use PC */
- prologue_end = fi->pc;
+ prologue_end = get_frame_pc (fi);
else if (sal.end < prologue_end)
prologue_end = sal.end;
- if (fi->pc < prologue_end)
+ if (get_frame_pc (fi) < prologue_end)
{
- for (addr = prologue_start; addr < fi->pc; addr += 4)
+ for (addr = prologue_start; addr < get_frame_pc (fi); addr += 4)
{
insn = read_memory_integer (addr, 4);
if (X_OP (insn) == 2 && X_OP3 (insn) == 0x3c)
break; /* SAVE seen, stop searching */
}
- if (addr >= fi->pc)
+ if (addr >= get_frame_pc (fi))
{
- fi->in_prologue = 1;
- fi->frame = read_register (SP_REGNUM);
+ get_frame_extra_info (fi)->in_prologue = 1;
+ deprecated_update_frame_base_hack (fi, read_register (SP_REGNUM));
}
}
}
}
- if (fi->next && fi->frame == 0)
+ if (get_next_frame (fi) && get_frame_base (fi) == 0)
{
/* Kludge to cause init_prev_frame_info to destroy the new frame. */
- fi->frame = fi->next->frame;
- fi->pc = fi->next->pc;
+ deprecated_update_frame_base_hack (fi, get_frame_base (get_next_frame (fi)));
+ deprecated_update_frame_pc_hack (fi, get_frame_pc (get_next_frame (fi)));
}
}
CORE_ADDR
-sparc_frame_chain (frame)
- struct frame_info *frame;
+sparc_frame_chain (struct frame_info *frame)
{
/* Value that will cause FRAME_CHAIN_VALID to not worry about the chain
- value. If it realy is zero, we detect it later in
+ value. If it really is zero, we detect it later in
sparc_init_prev_frame. */
return (CORE_ADDR) 1;
}
CORE_ADDR
-sparc_extract_struct_value_address (regbuf)
- char regbuf[REGISTER_BYTES];
+sparc_extract_struct_value_address (char *regbuf)
{
return extract_address (regbuf + REGISTER_BYTE (O0_REGNUM),
REGISTER_RAW_SIZE (O0_REGNUM));
/* Find the pc saved in frame FRAME. */
CORE_ADDR
-sparc_frame_saved_pc (frame)
- struct frame_info *frame;
+sparc_frame_saved_pc (struct frame_info *frame)
{
- char buf[MAX_REGISTER_RAW_SIZE];
+ char *buf;
CORE_ADDR addr;
- if (frame->signal_handler_caller)
+ buf = alloca (MAX_REGISTER_RAW_SIZE);
+ if ((get_frame_type (frame) == SIGTRAMP_FRAME))
{
/* This is the signal trampoline frame.
Get the saved PC from the sigcontext structure. */
#endif
CORE_ADDR sigcontext_addr;
- char scbuf[TARGET_PTR_BIT / HOST_CHAR_BIT];
+ char *scbuf;
int saved_pc_offset = SIGCONTEXT_PC_OFFSET;
char *name = NULL;
+ scbuf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT);
+
/* Solaris2 ucbsigvechandler passes a pointer to a sigcontext
as the third parameter. The offset to the saved pc is 12. */
- find_pc_partial_function (frame->pc, &name,
+ find_pc_partial_function (get_frame_pc (frame), &name,
(CORE_ADDR *) NULL, (CORE_ADDR *) NULL);
if (name && STREQ (name, "ucbsigvechandler"))
saved_pc_offset = 12;
scbuf, sizeof (scbuf));
return extract_address (scbuf, sizeof (scbuf));
}
- else if (frame->in_prologue ||
- (frame->next != NULL
- && (frame->next->signal_handler_caller
- || frame_in_dummy (frame->next))
- && frameless_look_for_prologue (frame)))
+ else if (get_frame_extra_info (frame)->in_prologue ||
+ (get_next_frame (frame) != NULL &&
+ ((get_frame_type (get_next_frame (frame)) == SIGTRAMP_FRAME) ||
+ deprecated_frame_in_dummy (get_next_frame (frame))) &&
+ frameless_look_for_prologue (frame)))
{
/* A frameless function interrupted by a signal did not save
the PC, it is still in %o7. */
frame, O7_REGNUM, (enum lval_type *) NULL);
return PC_ADJUST (extract_address (buf, SPARC_INTREG_SIZE));
}
- if (frame->flat)
- addr = frame->pc_addr;
+ if (get_frame_extra_info (frame)->flat)
+ addr = get_frame_extra_info (frame)->pc_addr;
else
- addr = frame->bottom + FRAME_SAVED_I0 +
+ addr = get_frame_extra_info (frame)->bottom + FRAME_SAVED_I0 +
SPARC_INTREG_SIZE * (I7_REGNUM - I0_REGNUM);
if (addr == 0)
difficulty. */
struct frame_info *
-setup_arbitrary_frame (argc, argv)
- int argc;
- CORE_ADDR *argv;
+setup_arbitrary_frame (int argc, CORE_ADDR *argv)
{
struct frame_info *frame;
frame = create_new_frame (argv[0], 0);
if (!frame)
- internal_error ("create_new_frame returned invalid frame");
+ internal_error (__FILE__, __LINE__,
+ "create_new_frame returned invalid frame");
- frame->bottom = argv[1];
- frame->pc = FRAME_SAVED_PC (frame);
+ get_frame_extra_info (frame)->bottom = argv[1];
+ deprecated_update_frame_pc_hack (frame, FRAME_SAVED_PC (frame));
return frame;
}
This routine should be more specific in its actions; making sure
that it uses the same register in the initial prologue section. */
-static CORE_ADDR examine_prologue PARAMS ((CORE_ADDR, int, struct frame_info *,
- struct frame_saved_regs *));
+static CORE_ADDR examine_prologue (CORE_ADDR, int, struct frame_info *,
+ CORE_ADDR *);
static CORE_ADDR
-examine_prologue (start_pc, frameless_p, fi, saved_regs)
- CORE_ADDR start_pc;
- int frameless_p;
- struct frame_info *fi;
- struct frame_saved_regs *saved_regs;
+examine_prologue (CORE_ADDR start_pc, int frameless_p, struct frame_info *fi,
+ CORE_ADDR *saved_regs)
{
int insn;
int dest = -1;
while (1)
{
/* Recognize stores into the frame from the input registers.
- This recognizes all non alternate stores of input register,
- into a location offset from the frame pointer. */
- if ((X_OP (insn) == 3
- && (X_OP3 (insn) & 0x3c) == 4 /* Store, non-alternate. */
- && (X_RD (insn) & 0x18) == 0x18 /* Input register. */
- && X_I (insn) /* Immediate mode. */
- && X_RS1 (insn) == 30 /* Off of frame pointer. */
- /* Into reserved stack space. */
- && X_SIMM13 (insn) >= 0x44
- && X_SIMM13 (insn) < 0x5b))
- ;
+ This recognizes all non alternate stores of an input register,
+ into a location offset from the frame pointer between
+ +68 and +92. */
+
+ /* The above will fail for arguments that are promoted
+ (eg. shorts to ints or floats to doubles), because the compiler
+ will pass them in positive-offset frame space, but the prologue
+ will save them (after conversion) in negative frame space at an
+ unpredictable offset. Therefore I am going to remove the
+ restriction on the target-address of the save, on the theory
+ that any unbroken sequence of saves from input registers must
+ be part of the prologue. In un-optimized code (at least), I'm
+ fairly sure that the compiler would emit SOME other instruction
+ (eg. a move or add) before emitting another save that is actually
+ a part of the function body.
+
+ Besides, the reserved stack space is different for SPARC64 anyway.
+
+ MVS 4/23/2000 */
+
+ if (X_OP (insn) == 3
+ && (X_OP3 (insn) & 0x3c) == 4 /* Store, non-alternate. */
+ && (X_RD (insn) & 0x18) == 0x18 /* Input register. */
+ && X_I (insn) /* Immediate mode. */
+ && X_RS1 (insn) == 30) /* Off of frame pointer. */
+ ; /* empty statement -- fall thru to end of loop */
+ else if (GDB_TARGET_IS_SPARC64
+ && X_OP (insn) == 3
+ && (X_OP3 (insn) & 0x3c) == 12 /* store, extended (64-bit) */
+ && (X_RD (insn) & 0x18) == 0x18 /* input register */
+ && X_I (insn) /* immediate mode */
+ && X_RS1 (insn) == 30) /* off of frame pointer */
+ ; /* empty statement -- fall thru to end of loop */
+ else if (X_OP (insn) == 3
+ && (X_OP3 (insn) & 0x3c) == 36 /* store, floating-point */
+ && X_I (insn) /* immediate mode */
+ && X_RS1 (insn) == 30) /* off of frame pointer */
+ ; /* empty statement -- fall thru to end of loop */
else if (is_flat
&& X_OP (insn) == 3
- && X_OP3 (insn) == 4
- && X_RS1 (insn) == 14
- )
+ && X_OP3 (insn) == 4 /* store? */
+ && X_RS1 (insn) == 14) /* off of frame pointer */
{
if (saved_regs && X_I (insn))
- saved_regs->regs[X_RD (insn)] =
- fi->frame + fi->sp_offset + X_SIMM13 (insn);
+ saved_regs[X_RD (insn)] =
+ get_frame_base (fi) + get_frame_extra_info (fi)->sp_offset + X_SIMM13 (insn);
}
else
break;
return pc;
}
+/* Advance PC across any function entry prologue instructions to reach
+ some "real" code. */
+
CORE_ADDR
-sparc_skip_prologue (start_pc, frameless_p)
- CORE_ADDR start_pc;
- int frameless_p;
+sparc_skip_prologue (CORE_ADDR start_pc)
{
- return examine_prologue (start_pc, frameless_p, NULL, NULL);
+ struct symtab_and_line sal;
+ CORE_ADDR func_start, func_end;
+
+ /* This is the preferred method, find the end of the prologue by
+ using the debugging information. */
+ if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end))
+ {
+ sal = find_pc_line (func_start, 0);
+
+ if (sal.end < func_end
+ && start_pc <= sal.end)
+ return sal.end;
+ }
+
+ /* Oh well, examine the code by hand. */
+ return examine_prologue (start_pc, 0, NULL, NULL);
+}
+
+/* Is the prologue at IP frameless? */
+
+int
+sparc_prologue_frameless_p (CORE_ADDR ip)
+{
+ return ip == examine_prologue (ip, 1, NULL, NULL);
}
/* Check instruction at ADDR to see if it is a branch.
This isn't static as it's used by remote-sa.sparc.c. */
static branch_type
-isbranch (instruction, addr, target)
- long instruction;
- CORE_ADDR addr, *target;
+isbranch (long instruction, CORE_ADDR addr, CORE_ADDR *target)
{
branch_type val = not_branch;
long int offset = 0; /* Must be signed for sign-extend. */
|| X_OP2 (instruction) == 1
|| X_OP2 (instruction) == 3
|| X_OP2 (instruction) == 5
-#ifndef GDB_TARGET_IS_SPARC64
- || X_OP2 (instruction) == 7
-#endif
- ))
+ || (GDB_TARGET_IS_SPARC64 && X_OP2 (instruction) == 7)))
{
if (X_COND (instruction) == 8)
val = X_A (instruction) ? baa : ba;
val = X_A (instruction) ? bicca : bicc;
switch (X_OP2 (instruction))
{
+ case 7:
+ if (!GDB_TARGET_IS_SPARC64)
+ break;
+ /* else fall thru */
case 2:
case 6:
-#ifndef GDB_TARGET_IS_SPARC64
- case 7:
-#endif
offset = 4 * X_DISP22 (instruction);
break;
case 1:
}
*target = addr + offset;
}
-#ifdef GDB_TARGET_IS_SPARC64
- else if (X_OP (instruction) == 2
+ else if (GDB_TARGET_IS_SPARC64
+ && X_OP (instruction) == 2
&& X_OP3 (instruction) == 62)
{
if (X_FCN (instruction) == 0)
val = done_retry;
}
}
-#endif
return val;
}
The argument RAW_BUFFER must point to aligned memory. */
void
-sparc_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
- char *raw_buffer;
- int *optimized;
- CORE_ADDR *addrp;
- struct frame_info *frame;
- int regnum;
- enum lval_type *lval;
+sparc_get_saved_register (char *raw_buffer, int *optimized, CORE_ADDR *addrp,
+ struct frame_info *frame, int regnum,
+ enum lval_type *lval)
{
struct frame_info *frame1;
CORE_ADDR addr;
/* error ("No selected frame."); */
if (!target_has_registers)
error ("The program has no registers now.");
- if (selected_frame == NULL)
+ if (deprecated_selected_frame == NULL)
error ("No selected frame.");
/* Try to use selected frame */
- frame = get_prev_frame (selected_frame);
+ frame = get_prev_frame (deprecated_selected_frame);
if (frame == 0)
error ("Cmd not meaningful in the outermost frame.");
}
- frame1 = frame->next;
+ frame1 = get_next_frame (frame);
/* Get saved PC from the frame info if not in innermost frame. */
if (regnum == PC_REGNUM && frame1 != NULL)
if (raw_buffer != NULL)
{
/* Put it back in target format. */
- store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), frame->pc);
+ store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), get_frame_pc (frame));
}
if (addrp != NULL)
*addrp = 0;
while (frame1 != NULL)
{
- if (frame1->pc >= (frame1->bottom ? frame1->bottom :
- read_sp ())
- && frame1->pc <= FRAME_FP (frame1))
+ /* FIXME MVS: wrong test for dummy frame at entry. */
+
+ if (get_frame_pc (frame1) >= (get_frame_extra_info (frame1)->bottom
+ ? get_frame_extra_info (frame1)->bottom
+ : read_sp ())
+ && get_frame_pc (frame1) <= get_frame_base (frame1))
{
/* Dummy frame. All but the window regs are in there somewhere.
The window registers are saved on the stack, just like in a
normal frame. */
if (regnum >= G1_REGNUM && regnum < G1_REGNUM + 7)
- addr = frame1->frame + (regnum - G0_REGNUM) * SPARC_INTREG_SIZE
+ addr = get_frame_base (frame1) + (regnum - G0_REGNUM) * SPARC_INTREG_SIZE
- (FP_REGISTER_BYTES + 8 * SPARC_INTREG_SIZE);
else if (regnum >= I0_REGNUM && regnum < I0_REGNUM + 8)
- addr = (frame1->prev->bottom
+ /* NOTE: cagney/2002-05-04: The call to get_prev_frame()
+ is safe/cheap - there will always be a prev frame.
+ This is because frame1 is initialized to frame->next
+ (frame1->prev == frame) and is then advanced towards
+ the innermost (next) frame. */
+ addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
else if (regnum >= L0_REGNUM && regnum < L0_REGNUM + 8)
- addr = (frame1->prev->bottom
+ /* NOTE: cagney/2002-05-04: The call to get_prev_frame()
+ is safe/cheap - there will always be a prev frame.
+ This is because frame1 is initialized to frame->next
+ (frame1->prev == frame) and is then advanced towards
+ the innermost (next) frame. */
+ addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_L0);
else if (regnum >= O0_REGNUM && regnum < O0_REGNUM + 8)
- addr = frame1->frame + (regnum - O0_REGNUM) * SPARC_INTREG_SIZE
+ addr = get_frame_base (frame1) + (regnum - O0_REGNUM) * SPARC_INTREG_SIZE
- (FP_REGISTER_BYTES + 16 * SPARC_INTREG_SIZE);
- else if (FP0_REGNUM >= 0 &&
+ else if (SPARC_HAS_FPU &&
regnum >= FP0_REGNUM && regnum < FP0_REGNUM + 32)
- addr = frame1->frame + (regnum - FP0_REGNUM) * 4
+ addr = get_frame_base (frame1) + (regnum - FP0_REGNUM) * 4
- (FP_REGISTER_BYTES);
-#ifdef GDB_TARGET_IS_SPARC64
- else if (FP0_REGNUM >= 0 &&
+ else if (GDB_TARGET_IS_SPARC64 && SPARC_HAS_FPU &&
regnum >= FP0_REGNUM + 32 && regnum < FP_MAX_REGNUM)
- addr = frame1->frame + 32 * 4 + (regnum - FP0_REGNUM - 32) * 8
+ addr = get_frame_base (frame1) + 32 * 4 + (regnum - FP0_REGNUM - 32) * 8
- (FP_REGISTER_BYTES);
-#endif
else if (regnum >= Y_REGNUM && regnum < NUM_REGS)
- addr = frame1->frame + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
+ addr = get_frame_base (frame1) + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
- (FP_REGISTER_BYTES + 24 * SPARC_INTREG_SIZE);
}
- else if (frame1->flat)
+ else if (get_frame_extra_info (frame1)->flat)
{
if (regnum == RP_REGNUM)
- addr = frame1->pc_addr;
+ addr = get_frame_extra_info (frame1)->pc_addr;
else if (regnum == I7_REGNUM)
- addr = frame1->fp_addr;
+ addr = get_frame_extra_info (frame1)->fp_addr;
else
{
CORE_ADDR func_start;
- struct frame_saved_regs regs;
- memset (®s, 0, sizeof (regs));
+ CORE_ADDR *regs;
- find_pc_partial_function (frame1->pc, NULL, &func_start, NULL);
- examine_prologue (func_start, 0, frame1, ®s);
- addr = regs.regs[regnum];
+ regs = alloca (NUM_REGS * sizeof (CORE_ADDR));
+ memset (regs, 0, NUM_REGS * sizeof (CORE_ADDR));
+
+ find_pc_partial_function (get_frame_pc (frame1), NULL, &func_start, NULL);
+ examine_prologue (func_start, 0, frame1, regs);
+ addr = regs[regnum];
}
}
else
{
/* Normal frame. Local and In registers are saved on stack. */
if (regnum >= I0_REGNUM && regnum < I0_REGNUM + 8)
- addr = (frame1->prev->bottom
+ addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
else if (regnum >= L0_REGNUM && regnum < L0_REGNUM + 8)
- addr = (frame1->prev->bottom
+ addr = (get_frame_extra_info (get_prev_frame (frame1))->bottom
+ (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_L0);
else if (regnum >= O0_REGNUM && regnum < O0_REGNUM + 8)
}
if (addr != 0)
break;
- frame1 = frame1->next;
+ frame1 = get_next_frame (frame1);
}
if (addr != 0)
{
*lval = lval_register;
addr = REGISTER_BYTE (regnum);
if (raw_buffer != NULL)
- read_register_gen (regnum, raw_buffer);
+ deprecated_read_register_gen (regnum, raw_buffer);
}
if (addrp != NULL)
*addrp = addr;
/* Definitely see tm-sparc.h for more doc of the frame format here. */
-#ifdef GDB_TARGET_IS_SPARC64
-#define DUMMY_REG_SAVE_OFFSET (128 + 16)
-#else
-#define DUMMY_REG_SAVE_OFFSET 0x60
-#endif
-
/* See tm-sparc.h for how this is calculated. */
+
#define DUMMY_STACK_REG_BUF_SIZE \
(((8+8+8) * SPARC_INTREG_SIZE) + FP_REGISTER_BYTES)
-#define DUMMY_STACK_SIZE (DUMMY_STACK_REG_BUF_SIZE + DUMMY_REG_SAVE_OFFSET)
+#define DUMMY_STACK_SIZE \
+ (DUMMY_STACK_REG_BUF_SIZE + DUMMY_REG_SAVE_OFFSET)
void
-sparc_push_dummy_frame ()
+sparc_push_dummy_frame (void)
{
CORE_ADDR sp, old_sp;
- char register_temp[DUMMY_STACK_SIZE];
+ char *register_temp;
+
+ register_temp = alloca (DUMMY_STACK_SIZE);
old_sp = sp = read_sp ();
-#ifdef GDB_TARGET_IS_SPARC64
- /* PC, NPC, CCR, FSR, FPRS, Y, ASI */
- read_register_bytes (REGISTER_BYTE (PC_REGNUM), ®ister_temp[0],
- REGISTER_RAW_SIZE (PC_REGNUM) * 7);
- read_register_bytes (REGISTER_BYTE (PSTATE_REGNUM), ®ister_temp[8],
- REGISTER_RAW_SIZE (PSTATE_REGNUM));
- /* FIXME: not sure what needs to be saved here. */
-#else
- /* Y, PS, WIM, TBR, PC, NPC, FPS, CPS regs */
- read_register_bytes (REGISTER_BYTE (Y_REGNUM), ®ister_temp[0],
- REGISTER_RAW_SIZE (Y_REGNUM) * 8);
-#endif
+ if (GDB_TARGET_IS_SPARC64)
+ {
+ /* PC, NPC, CCR, FSR, FPRS, Y, ASI */
+ deprecated_read_register_bytes (REGISTER_BYTE (PC_REGNUM),
+ ®ister_temp[0],
+ REGISTER_RAW_SIZE (PC_REGNUM) * 7);
+ deprecated_read_register_bytes (REGISTER_BYTE (PSTATE_REGNUM),
+ ®ister_temp[7 * SPARC_INTREG_SIZE],
+ REGISTER_RAW_SIZE (PSTATE_REGNUM));
+ /* FIXME: not sure what needs to be saved here. */
+ }
+ else
+ {
+ /* Y, PS, WIM, TBR, PC, NPC, FPS, CPS regs */
+ deprecated_read_register_bytes (REGISTER_BYTE (Y_REGNUM),
+ ®ister_temp[0],
+ REGISTER_RAW_SIZE (Y_REGNUM) * 8);
+ }
- read_register_bytes (REGISTER_BYTE (O0_REGNUM),
- ®ister_temp[8 * SPARC_INTREG_SIZE],
- SPARC_INTREG_SIZE * 8);
+ deprecated_read_register_bytes (REGISTER_BYTE (O0_REGNUM),
+ ®ister_temp[8 * SPARC_INTREG_SIZE],
+ SPARC_INTREG_SIZE * 8);
- read_register_bytes (REGISTER_BYTE (G0_REGNUM),
- ®ister_temp[16 * SPARC_INTREG_SIZE],
- SPARC_INTREG_SIZE * 8);
+ deprecated_read_register_bytes (REGISTER_BYTE (G0_REGNUM),
+ ®ister_temp[16 * SPARC_INTREG_SIZE],
+ SPARC_INTREG_SIZE * 8);
- if (FP0_REGNUM >= 0)
- read_register_bytes (REGISTER_BYTE (FP0_REGNUM),
- ®ister_temp[24 * SPARC_INTREG_SIZE],
- FP_REGISTER_BYTES);
+ if (SPARC_HAS_FPU)
+ deprecated_read_register_bytes (REGISTER_BYTE (FP0_REGNUM),
+ ®ister_temp[24 * SPARC_INTREG_SIZE],
+ FP_REGISTER_BYTES);
sp -= DUMMY_STACK_SIZE;
if (strcmp (target_shortname, "sim") != 0)
{
- write_fp (old_sp);
-
+ /* NOTE: cagney/2002-04-04: The code below originally contained
+ GDB's _only_ call to write_fp(). That call was eliminated by
+ inlining the corresponding code. For the 64 bit case, the
+ old function (sparc64_write_fp) did the below although I'm
+ not clear why. The same goes for why this is only done when
+ the underlying target is a simulator. */
+ if (GDB_TARGET_IS_SPARC64)
+ {
+ /* Target is a 64 bit SPARC. */
+ CORE_ADDR oldfp = read_register (FP_REGNUM);
+ if (oldfp & 1)
+ write_register (FP_REGNUM, old_sp - 2047);
+ else
+ write_register (FP_REGNUM, old_sp);
+ }
+ else
+ {
+ /* Target is a 32 bit SPARC. */
+ write_register (FP_REGNUM, old_sp);
+ }
/* Set return address register for the call dummy to the current PC. */
write_register (I7_REGNUM, read_pc () - 8);
}
ugly duplication between sparc_frame_find_saved_regs and
get_saved_register.
- Stores, into a struct frame_saved_regs,
+ Stores, into an array of CORE_ADDR,
the addresses of the saved registers of frame described by FRAME_INFO.
This includes special registers such as pc and fp saved in special
ways in the stack frame. sp is even more special:
See tm-sparc.h (PUSH_DUMMY_FRAME and friends) for CRITICAL information
about how this works. */
-static void sparc_frame_find_saved_regs PARAMS ((struct frame_info *,
- struct frame_saved_regs *));
+static void sparc_frame_find_saved_regs (struct frame_info *, CORE_ADDR *);
static void
-sparc_frame_find_saved_regs (fi, saved_regs_addr)
- struct frame_info *fi;
- struct frame_saved_regs *saved_regs_addr;
+sparc_frame_find_saved_regs (struct frame_info *fi, CORE_ADDR *saved_regs_addr)
{
register int regnum;
- CORE_ADDR frame_addr = FRAME_FP (fi);
+ CORE_ADDR frame_addr = get_frame_base (fi);
if (!fi)
- internal_error ("Bad frame info struct in FRAME_FIND_SAVED_REGS");
+ internal_error (__FILE__, __LINE__,
+ "Bad frame info struct in FRAME_FIND_SAVED_REGS");
- memset (saved_regs_addr, 0, sizeof (*saved_regs_addr));
+ memset (saved_regs_addr, 0, NUM_REGS * sizeof (CORE_ADDR));
- if (fi->pc >= (fi->bottom ? fi->bottom :
- read_sp ())
- && fi->pc <= FRAME_FP (fi))
+ if (get_frame_pc (fi) >= (get_frame_extra_info (fi)->bottom
+ ? get_frame_extra_info (fi)->bottom
+ : read_sp ())
+ && get_frame_pc (fi) <= get_frame_base (fi))
{
/* Dummy frame. All but the window regs are in there somewhere. */
for (regnum = G1_REGNUM; regnum < G1_REGNUM + 7; regnum++)
- saved_regs_addr->regs[regnum] =
+ saved_regs_addr[regnum] =
frame_addr + (regnum - G0_REGNUM) * SPARC_INTREG_SIZE
- DUMMY_STACK_REG_BUF_SIZE + 16 * SPARC_INTREG_SIZE;
+
for (regnum = I0_REGNUM; regnum < I0_REGNUM + 8; regnum++)
- saved_regs_addr->regs[regnum] =
+ saved_regs_addr[regnum] =
frame_addr + (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
- DUMMY_STACK_REG_BUF_SIZE + 8 * SPARC_INTREG_SIZE;
- if (FP0_REGNUM >= 0)
- {
- for (regnum = FP0_REGNUM; regnum < FP0_REGNUM + 32; regnum++)
- saved_regs_addr->regs[regnum] =
- frame_addr + (regnum - FP0_REGNUM) * 4
- - DUMMY_STACK_REG_BUF_SIZE + 24 * SPARC_INTREG_SIZE;
-#ifdef GDB_TARGET_IS_SPARC64
- for (regnum = FP0_REGNUM + 32; regnum < FP_MAX_REGNUM; regnum++)
- saved_regs_addr->regs[regnum] =
- frame_addr + 32 * 4 + (regnum - FP0_REGNUM - 32) * 4
- - DUMMY_STACK_REG_BUF_SIZE + 24 * SPARC_INTREG_SIZE;
-#endif
- }
-#ifdef GDB_TARGET_IS_SPARC64
- for (regnum = PC_REGNUM; regnum < PC_REGNUM + 7; regnum++)
+ if (SPARC_HAS_FPU)
+ for (regnum = FP0_REGNUM; regnum < FP_MAX_REGNUM; regnum++)
+ saved_regs_addr[regnum] = frame_addr + (regnum - FP0_REGNUM) * 4
+ - DUMMY_STACK_REG_BUF_SIZE + 24 * SPARC_INTREG_SIZE;
+
+ if (GDB_TARGET_IS_SPARC64)
{
- saved_regs_addr->regs[regnum] =
- frame_addr + (regnum - PC_REGNUM) * SPARC_INTREG_SIZE
- - DUMMY_STACK_REG_BUF_SIZE;
+ for (regnum = PC_REGNUM; regnum < PC_REGNUM + 7; regnum++)
+ {
+ saved_regs_addr[regnum] =
+ frame_addr + (regnum - PC_REGNUM) * SPARC_INTREG_SIZE
+ - DUMMY_STACK_REG_BUF_SIZE;
+ }
+ saved_regs_addr[PSTATE_REGNUM] =
+ frame_addr + 8 * SPARC_INTREG_SIZE - DUMMY_STACK_REG_BUF_SIZE;
}
- saved_regs_addr->regs[PSTATE_REGNUM] =
- frame_addr + 8 * SPARC_INTREG_SIZE - DUMMY_STACK_REG_BUF_SIZE;
-#else
- for (regnum = Y_REGNUM; regnum < NUM_REGS; regnum++)
- saved_regs_addr->regs[regnum] =
- frame_addr + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
- - DUMMY_STACK_REG_BUF_SIZE;
-#endif
- frame_addr = fi->bottom ?
- fi->bottom : read_sp ();
+ else
+ for (regnum = Y_REGNUM; regnum < NUM_REGS; regnum++)
+ saved_regs_addr[regnum] =
+ frame_addr + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
+ - DUMMY_STACK_REG_BUF_SIZE;
+
+ frame_addr = (get_frame_extra_info (fi)->bottom
+ ? get_frame_extra_info (fi)->bottom
+ : read_sp ());
}
- else if (fi->flat)
+ else if (get_frame_extra_info (fi)->flat)
{
CORE_ADDR func_start;
- find_pc_partial_function (fi->pc, NULL, &func_start, NULL);
+ find_pc_partial_function (get_frame_pc (fi), NULL, &func_start, NULL);
examine_prologue (func_start, 0, fi, saved_regs_addr);
/* Flat register window frame. */
- saved_regs_addr->regs[RP_REGNUM] = fi->pc_addr;
- saved_regs_addr->regs[I7_REGNUM] = fi->fp_addr;
+ saved_regs_addr[RP_REGNUM] = get_frame_extra_info (fi)->pc_addr;
+ saved_regs_addr[I7_REGNUM] = get_frame_extra_info (fi)->fp_addr;
}
else
{
/* Normal frame. Just Local and In registers */
- frame_addr = fi->bottom ?
- fi->bottom : read_sp ();
+ frame_addr = (get_frame_extra_info (fi)->bottom
+ ? get_frame_extra_info (fi)->bottom
+ : read_sp ());
for (regnum = L0_REGNUM; regnum < L0_REGNUM + 8; regnum++)
- saved_regs_addr->regs[regnum] =
+ saved_regs_addr[regnum] =
(frame_addr + (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_L0);
for (regnum = I0_REGNUM; regnum < I0_REGNUM + 8; regnum++)
- saved_regs_addr->regs[regnum] =
+ saved_regs_addr[regnum] =
(frame_addr + (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
}
- if (fi->next)
+ if (get_next_frame (fi))
{
- if (fi->flat)
+ if (get_frame_extra_info (fi)->flat)
{
- saved_regs_addr->regs[O7_REGNUM] = fi->pc_addr;
+ saved_regs_addr[O7_REGNUM] = get_frame_extra_info (fi)->pc_addr;
}
else
{
/* Pull off either the next frame pointer or the stack pointer */
CORE_ADDR next_next_frame_addr =
- (fi->next->bottom ?
- fi->next->bottom :
- read_sp ());
+ (get_frame_extra_info (get_next_frame (fi))->bottom
+ ? get_frame_extra_info (get_next_frame (fi))->bottom
+ : read_sp ());
for (regnum = O0_REGNUM; regnum < O0_REGNUM + 8; regnum++)
- saved_regs_addr->regs[regnum] =
+ saved_regs_addr[regnum] =
(next_next_frame_addr
+ (regnum - O0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
}
/* Otherwise, whatever we would get from ptrace(GETREGS) is accurate */
/* FIXME -- should this adjust for the sparc64 offset? */
- saved_regs_addr->regs[SP_REGNUM] = FRAME_FP (fi);
+ saved_regs_addr[SP_REGNUM] = get_frame_base (fi);
}
/* Discard from the stack the innermost frame, restoring all saved registers.
- Note that the values stored in fsr by get_frame_saved_regs are *in
- the context of the called frame*. What this means is that the i
- regs of fsr must be restored into the o regs of the (calling) frame that
- we pop into. We don't care about the output regs of the calling frame,
- since unless it's a dummy frame, it won't have any output regs in it.
+ Note that the values stored in fsr by
+ deprecated_get_frame_saved_regs are *in the context of the called
+ frame*. What this means is that the i regs of fsr must be restored
+ into the o regs of the (calling) frame that we pop into. We don't
+ care about the output regs of the calling frame, since unless it's
+ a dummy frame, it won't have any output regs in it.
We never have to bother with %l (local) regs, since the called routine's
locals get tossed, and the calling routine's locals are already saved
/* Definitely see tm-sparc.h for more doc of the frame format here. */
void
-sparc_pop_frame ()
+sparc_pop_frame (void)
{
register struct frame_info *frame = get_current_frame ();
register CORE_ADDR pc;
- struct frame_saved_regs fsr;
- char raw_buffer[REGISTER_BYTES];
+ CORE_ADDR *fsr;
+ char *raw_buffer;
int regnum;
- sparc_frame_find_saved_regs (frame, &fsr);
- if (FP0_REGNUM >= 0)
+ fsr = alloca (NUM_REGS * sizeof (CORE_ADDR));
+ raw_buffer = alloca (REGISTER_BYTES);
+ sparc_frame_find_saved_regs (frame, &fsr[0]);
+ if (SPARC_HAS_FPU)
{
- if (fsr.regs[FP0_REGNUM])
- {
- read_memory (fsr.regs[FP0_REGNUM], raw_buffer, FP_REGISTER_BYTES);
- write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
- raw_buffer, FP_REGISTER_BYTES);
- }
-#ifndef GDB_TARGET_IS_SPARC64
- if (fsr.regs[FPS_REGNUM])
+ if (fsr[FP0_REGNUM])
{
- read_memory (fsr.regs[FPS_REGNUM], raw_buffer, 4);
- write_register_bytes (REGISTER_BYTE (FPS_REGNUM), raw_buffer, 4);
+ read_memory (fsr[FP0_REGNUM], raw_buffer, FP_REGISTER_BYTES);
+ deprecated_write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
+ raw_buffer, FP_REGISTER_BYTES);
}
- if (fsr.regs[CPS_REGNUM])
+ if (!(GDB_TARGET_IS_SPARC64))
{
- read_memory (fsr.regs[CPS_REGNUM], raw_buffer, 4);
- write_register_bytes (REGISTER_BYTE (CPS_REGNUM), raw_buffer, 4);
+ if (fsr[FPS_REGNUM])
+ {
+ read_memory (fsr[FPS_REGNUM], raw_buffer, SPARC_INTREG_SIZE);
+ deprecated_write_register_gen (FPS_REGNUM, raw_buffer);
+ }
+ if (fsr[CPS_REGNUM])
+ {
+ read_memory (fsr[CPS_REGNUM], raw_buffer, SPARC_INTREG_SIZE);
+ deprecated_write_register_gen (CPS_REGNUM, raw_buffer);
+ }
}
-#endif
}
- if (fsr.regs[G1_REGNUM])
+ if (fsr[G1_REGNUM])
{
- read_memory (fsr.regs[G1_REGNUM], raw_buffer, 7 * SPARC_INTREG_SIZE);
- write_register_bytes (REGISTER_BYTE (G1_REGNUM), raw_buffer,
- 7 * SPARC_INTREG_SIZE);
+ read_memory (fsr[G1_REGNUM], raw_buffer, 7 * SPARC_INTREG_SIZE);
+ deprecated_write_register_bytes (REGISTER_BYTE (G1_REGNUM), raw_buffer,
+ 7 * SPARC_INTREG_SIZE);
}
- if (frame->flat)
+ if (get_frame_extra_info (frame)->flat)
{
/* Each register might or might not have been saved, need to test
individually. */
for (regnum = L0_REGNUM; regnum < L0_REGNUM + 8; ++regnum)
- if (fsr.regs[regnum])
- write_register (regnum, read_memory_integer (fsr.regs[regnum],
+ if (fsr[regnum])
+ write_register (regnum, read_memory_integer (fsr[regnum],
SPARC_INTREG_SIZE));
for (regnum = I0_REGNUM; regnum < I0_REGNUM + 8; ++regnum)
- if (fsr.regs[regnum])
- write_register (regnum, read_memory_integer (fsr.regs[regnum],
+ if (fsr[regnum])
+ write_register (regnum, read_memory_integer (fsr[regnum],
SPARC_INTREG_SIZE));
/* Handle all outs except stack pointer (o0-o5; o7). */
for (regnum = O0_REGNUM; regnum < O0_REGNUM + 6; ++regnum)
- if (fsr.regs[regnum])
- write_register (regnum, read_memory_integer (fsr.regs[regnum],
+ if (fsr[regnum])
+ write_register (regnum, read_memory_integer (fsr[regnum],
SPARC_INTREG_SIZE));
- if (fsr.regs[O0_REGNUM + 7])
+ if (fsr[O0_REGNUM + 7])
write_register (O0_REGNUM + 7,
- read_memory_integer (fsr.regs[O0_REGNUM + 7],
+ read_memory_integer (fsr[O0_REGNUM + 7],
SPARC_INTREG_SIZE));
- write_sp (frame->frame);
+ write_sp (get_frame_base (frame));
}
- else if (fsr.regs[I0_REGNUM])
+ else if (fsr[I0_REGNUM])
{
CORE_ADDR sp;
- char reg_temp[REGISTER_BYTES];
+ char *reg_temp;
- read_memory (fsr.regs[I0_REGNUM], raw_buffer, 8 * SPARC_INTREG_SIZE);
+ reg_temp = alloca (SPARC_INTREG_SIZE * 16);
+
+ read_memory (fsr[I0_REGNUM], raw_buffer, 8 * SPARC_INTREG_SIZE);
/* Get the ins and locals which we are about to restore. Just
moving the stack pointer is all that is really needed, except
store_inferior_registers is then going to write the ins and
locals from the registers array, so we need to muck with the
registers array. */
- sp = fsr.regs[SP_REGNUM];
-#ifdef GDB_TARGET_IS_SPARC64
- if (sp & 1)
+ sp = fsr[SP_REGNUM];
+
+ if (GDB_TARGET_IS_SPARC64 && (sp & 1))
sp += 2047;
-#endif
+
read_memory (sp, reg_temp, SPARC_INTREG_SIZE * 16);
/* Restore the out registers.
Among other things this writes the new stack pointer. */
- write_register_bytes (REGISTER_BYTE (O0_REGNUM), raw_buffer,
- SPARC_INTREG_SIZE * 8);
+ deprecated_write_register_bytes (REGISTER_BYTE (O0_REGNUM), raw_buffer,
+ SPARC_INTREG_SIZE * 8);
- write_register_bytes (REGISTER_BYTE (L0_REGNUM), reg_temp,
- SPARC_INTREG_SIZE * 16);
+ deprecated_write_register_bytes (REGISTER_BYTE (L0_REGNUM), reg_temp,
+ SPARC_INTREG_SIZE * 16);
}
-#ifndef GDB_TARGET_IS_SPARC64
- if (fsr.regs[PS_REGNUM])
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4));
-#endif
- if (fsr.regs[Y_REGNUM])
- write_register (Y_REGNUM, read_memory_integer (fsr.regs[Y_REGNUM], REGISTER_RAW_SIZE (Y_REGNUM)));
- if (fsr.regs[PC_REGNUM])
+
+ if (!(GDB_TARGET_IS_SPARC64))
+ if (fsr[PS_REGNUM])
+ write_register (PS_REGNUM,
+ read_memory_integer (fsr[PS_REGNUM],
+ REGISTER_RAW_SIZE (PS_REGNUM)));
+
+ if (fsr[Y_REGNUM])
+ write_register (Y_REGNUM,
+ read_memory_integer (fsr[Y_REGNUM],
+ REGISTER_RAW_SIZE (Y_REGNUM)));
+ if (fsr[PC_REGNUM])
{
/* Explicitly specified PC (and maybe NPC) -- just restore them. */
- write_register (PC_REGNUM, read_memory_integer (fsr.regs[PC_REGNUM],
- REGISTER_RAW_SIZE (PC_REGNUM)));
- if (fsr.regs[NPC_REGNUM])
+ write_register (PC_REGNUM,
+ read_memory_integer (fsr[PC_REGNUM],
+ REGISTER_RAW_SIZE (PC_REGNUM)));
+ if (fsr[NPC_REGNUM])
write_register (NPC_REGNUM,
- read_memory_integer (fsr.regs[NPC_REGNUM],
- REGISTER_RAW_SIZE (NPC_REGNUM)));
+ read_memory_integer (fsr[NPC_REGNUM],
+ REGISTER_RAW_SIZE (NPC_REGNUM)));
}
- else if (frame->flat)
+ else if (get_frame_extra_info (frame)->flat)
{
- if (frame->pc_addr)
+ if (get_frame_extra_info (frame)->pc_addr)
pc = PC_ADJUST ((CORE_ADDR)
- read_memory_integer (frame->pc_addr,
+ read_memory_integer (get_frame_extra_info (frame)->pc_addr,
REGISTER_RAW_SIZE (PC_REGNUM)));
else
{
/* I think this happens only in the innermost frame, if so then
it is a complicated way of saying
"pc = read_register (O7_REGNUM);". */
- char buf[MAX_REGISTER_RAW_SIZE];
+ char *buf;
+
+ buf = alloca (MAX_REGISTER_RAW_SIZE);
get_saved_register (buf, 0, 0, frame, O7_REGNUM, 0);
pc = PC_ADJUST (extract_address
(buf, REGISTER_RAW_SIZE (O7_REGNUM)));
write_register (PC_REGNUM, pc);
write_register (NPC_REGNUM, pc + 4);
}
- else if (fsr.regs[I7_REGNUM])
+ else if (fsr[I7_REGNUM])
{
/* Return address in %i7 -- adjust it, then restore PC and NPC from it */
- pc = PC_ADJUST ((CORE_ADDR) read_memory_integer (fsr.regs[I7_REGNUM],
+ pc = PC_ADJUST ((CORE_ADDR) read_memory_integer (fsr[I7_REGNUM],
SPARC_INTREG_SIZE));
write_register (PC_REGNUM, pc);
write_register (NPC_REGNUM, pc + 4);
a fake insn, step past it. */
CORE_ADDR
-sparc_pc_adjust (pc)
- CORE_ADDR pc;
+sparc_pc_adjust (CORE_ADDR pc)
{
unsigned long insn;
char buf[4];
by hand. */
CORE_ADDR
-sunos4_skip_trampoline_code (pc)
- CORE_ADDR pc;
+sunos4_skip_trampoline_code (CORE_ADDR pc)
{
unsigned long insn1;
char buf[4];
*/
/* *INDENT-ON* */
-
-
/* Given a pointer to a general register set in /proc format (gregset_t *),
unpack the register contents and supply them as gdb's idea of the current
register values. */
void
-supply_gregset (gregsetp)
- prgregset_t *gregsetp;
+supply_gregset (gdb_gregset_t *gregsetp)
{
- register int regi;
- register prgreg_t *regp = (prgreg_t *) gregsetp;
- static char zerobuf[MAX_REGISTER_RAW_SIZE] =
- {0};
+ prgreg_t *regp = (prgreg_t *) gregsetp;
+ int regi, offset = 0;
+
+ /* If the host is 64-bit sparc, but the target is 32-bit sparc,
+ then the gregset may contain 64-bit ints while supply_register
+ is expecting 32-bit ints. Compensate. */
+ if (sizeof (regp[0]) == 8 && SPARC_INTREG_SIZE == 4)
+ offset = 4;
/* GDB register numbers for Gn, On, Ln, In all match /proc reg numbers. */
+ /* FIXME MVS: assumes the order of the first 32 elements... */
for (regi = G0_REGNUM; regi <= I7_REGNUM; regi++)
{
- supply_register (regi, (char *) (regp + regi));
+ supply_register (regi, ((char *) (regp + regi)) + offset);
}
/* These require a bit more care. */
- supply_register (PS_REGNUM, (char *) (regp + R_PS));
- supply_register (PC_REGNUM, (char *) (regp + R_PC));
- supply_register (NPC_REGNUM, (char *) (regp + R_nPC));
- supply_register (Y_REGNUM, (char *) (regp + R_Y));
+ supply_register (PC_REGNUM, ((char *) (regp + R_PC)) + offset);
+ supply_register (NPC_REGNUM, ((char *) (regp + R_nPC)) + offset);
+ supply_register (Y_REGNUM, ((char *) (regp + R_Y)) + offset);
+
+ if (GDB_TARGET_IS_SPARC64)
+ {
+#ifdef R_CCR
+ supply_register (CCR_REGNUM, ((char *) (regp + R_CCR)) + offset);
+#else
+ supply_register (CCR_REGNUM, NULL);
+#endif
+#ifdef R_FPRS
+ supply_register (FPRS_REGNUM, ((char *) (regp + R_FPRS)) + offset);
+#else
+ supply_register (FPRS_REGNUM, NULL);
+#endif
+#ifdef R_ASI
+ supply_register (ASI_REGNUM, ((char *) (regp + R_ASI)) + offset);
+#else
+ supply_register (ASI_REGNUM, NULL);
+#endif
+ }
+ else /* sparc32 */
+ {
+#ifdef R_PS
+ supply_register (PS_REGNUM, ((char *) (regp + R_PS)) + offset);
+#else
+ supply_register (PS_REGNUM, NULL);
+#endif
+
+ /* For 64-bit hosts, R_WIM and R_TBR may not be defined.
+ Steal R_ASI and R_FPRS, and hope for the best! */
+
+#if !defined (R_WIM) && defined (R_ASI)
+#define R_WIM R_ASI
+#endif
+
+#if !defined (R_TBR) && defined (R_FPRS)
+#define R_TBR R_FPRS
+#endif
+
+#if defined (R_WIM)
+ supply_register (WIM_REGNUM, ((char *) (regp + R_WIM)) + offset);
+#else
+ supply_register (WIM_REGNUM, NULL);
+#endif
+
+#if defined (R_TBR)
+ supply_register (TBR_REGNUM, ((char *) (regp + R_TBR)) + offset);
+#else
+ supply_register (TBR_REGNUM, NULL);
+#endif
+ }
/* Fill inaccessible registers with zero. */
- supply_register (WIM_REGNUM, zerobuf);
- supply_register (TBR_REGNUM, zerobuf);
- supply_register (CPS_REGNUM, zerobuf);
+ if (GDB_TARGET_IS_SPARC64)
+ {
+ /*
+ * don't know how to get value of any of the following:
+ */
+ supply_register (VER_REGNUM, NULL);
+ supply_register (TICK_REGNUM, NULL);
+ supply_register (PIL_REGNUM, NULL);
+ supply_register (PSTATE_REGNUM, NULL);
+ supply_register (TSTATE_REGNUM, NULL);
+ supply_register (TBA_REGNUM, NULL);
+ supply_register (TL_REGNUM, NULL);
+ supply_register (TT_REGNUM, NULL);
+ supply_register (TPC_REGNUM, NULL);
+ supply_register (TNPC_REGNUM, NULL);
+ supply_register (WSTATE_REGNUM, NULL);
+ supply_register (CWP_REGNUM, NULL);
+ supply_register (CANSAVE_REGNUM, NULL);
+ supply_register (CANRESTORE_REGNUM, NULL);
+ supply_register (CLEANWIN_REGNUM, NULL);
+ supply_register (OTHERWIN_REGNUM, NULL);
+ supply_register (ASR16_REGNUM, NULL);
+ supply_register (ASR17_REGNUM, NULL);
+ supply_register (ASR18_REGNUM, NULL);
+ supply_register (ASR19_REGNUM, NULL);
+ supply_register (ASR20_REGNUM, NULL);
+ supply_register (ASR21_REGNUM, NULL);
+ supply_register (ASR22_REGNUM, NULL);
+ supply_register (ASR23_REGNUM, NULL);
+ supply_register (ASR24_REGNUM, NULL);
+ supply_register (ASR25_REGNUM, NULL);
+ supply_register (ASR26_REGNUM, NULL);
+ supply_register (ASR27_REGNUM, NULL);
+ supply_register (ASR28_REGNUM, NULL);
+ supply_register (ASR29_REGNUM, NULL);
+ supply_register (ASR30_REGNUM, NULL);
+ supply_register (ASR31_REGNUM, NULL);
+ supply_register (ICC_REGNUM, NULL);
+ supply_register (XCC_REGNUM, NULL);
+ }
+ else
+ {
+ supply_register (CPS_REGNUM, NULL);
+ }
}
void
-fill_gregset (gregsetp, regno)
- prgregset_t *gregsetp;
- int regno;
+fill_gregset (gdb_gregset_t *gregsetp, int regno)
{
- int regi;
- register prgreg_t *regp = (prgreg_t *) gregsetp;
+ prgreg_t *regp = (prgreg_t *) gregsetp;
+ int regi, offset = 0;
+
+ /* If the host is 64-bit sparc, but the target is 32-bit sparc,
+ then the gregset may contain 64-bit ints while supply_register
+ is expecting 32-bit ints. Compensate. */
+ if (sizeof (regp[0]) == 8 && SPARC_INTREG_SIZE == 4)
+ offset = 4;
for (regi = 0; regi <= R_I7; regi++)
- {
- if ((regno == -1) || (regno == regi))
- {
- *(regp + regi) = *(int *) ®isters[REGISTER_BYTE (regi)];
- }
- }
- if ((regno == -1) || (regno == PS_REGNUM))
- {
- *(regp + R_PS) = *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)];
- }
+ if ((regno == -1) || (regno == regi))
+ deprecated_read_register_gen (regi, (char *) (regp + regi) + offset);
+
if ((regno == -1) || (regno == PC_REGNUM))
- {
- *(regp + R_PC) = *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
- }
+ deprecated_read_register_gen (PC_REGNUM, (char *) (regp + R_PC) + offset);
+
if ((regno == -1) || (regno == NPC_REGNUM))
+ deprecated_read_register_gen (NPC_REGNUM, (char *) (regp + R_nPC) + offset);
+
+ if ((regno == -1) || (regno == Y_REGNUM))
+ deprecated_read_register_gen (Y_REGNUM, (char *) (regp + R_Y) + offset);
+
+ if (GDB_TARGET_IS_SPARC64)
{
- *(regp + R_nPC) = *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)];
+#ifdef R_CCR
+ if (regno == -1 || regno == CCR_REGNUM)
+ deprecated_read_register_gen (CCR_REGNUM, ((char *) (regp + R_CCR)) + offset);
+#endif
+#ifdef R_FPRS
+ if (regno == -1 || regno == FPRS_REGNUM)
+ deprecated_read_register_gen (FPRS_REGNUM, ((char *) (regp + R_FPRS)) + offset);
+#endif
+#ifdef R_ASI
+ if (regno == -1 || regno == ASI_REGNUM)
+ deprecated_read_register_gen (ASI_REGNUM, ((char *) (regp + R_ASI)) + offset);
+#endif
}
- if ((regno == -1) || (regno == Y_REGNUM))
+ else /* sparc32 */
{
- *(regp + R_Y) = *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)];
+#ifdef R_PS
+ if (regno == -1 || regno == PS_REGNUM)
+ deprecated_read_register_gen (PS_REGNUM, ((char *) (regp + R_PS)) + offset);
+#endif
+
+ /* For 64-bit hosts, R_WIM and R_TBR may not be defined.
+ Steal R_ASI and R_FPRS, and hope for the best! */
+
+#if !defined (R_WIM) && defined (R_ASI)
+#define R_WIM R_ASI
+#endif
+
+#if !defined (R_TBR) && defined (R_FPRS)
+#define R_TBR R_FPRS
+#endif
+
+#if defined (R_WIM)
+ if (regno == -1 || regno == WIM_REGNUM)
+ deprecated_read_register_gen (WIM_REGNUM, ((char *) (regp + R_WIM)) + offset);
+#else
+ if (regno == -1 || regno == WIM_REGNUM)
+ deprecated_read_register_gen (WIM_REGNUM, NULL);
+#endif
+
+#if defined (R_TBR)
+ if (regno == -1 || regno == TBR_REGNUM)
+ deprecated_read_register_gen (TBR_REGNUM, ((char *) (regp + R_TBR)) + offset);
+#else
+ if (regno == -1 || regno == TBR_REGNUM)
+ deprecated_read_register_gen (TBR_REGNUM, NULL);
+#endif
}
}
idea of the current floating point register values. */
void
-supply_fpregset (fpregsetp)
- prfpregset_t *fpregsetp;
+supply_fpregset (gdb_fpregset_t *fpregsetp)
{
register int regi;
char *from;
- if (FP0_REGNUM < 0)
+ if (!SPARC_HAS_FPU)
return;
for (regi = FP0_REGNUM; regi < FP_MAX_REGNUM; regi++)
from = (char *) &fpregsetp->pr_fr.pr_regs[regi - FP0_REGNUM];
supply_register (regi, from);
}
- supply_register (FPS_REGNUM, (char *) &(fpregsetp->pr_fsr));
+
+ if (GDB_TARGET_IS_SPARC64)
+ {
+ /*
+ * don't know how to get value of the following.
+ */
+ supply_register (FSR_REGNUM, NULL); /* zero it out for now */
+ supply_register (FCC0_REGNUM, NULL);
+ supply_register (FCC1_REGNUM, NULL); /* don't know how to get value */
+ supply_register (FCC2_REGNUM, NULL); /* don't know how to get value */
+ supply_register (FCC3_REGNUM, NULL); /* don't know how to get value */
+ }
+ else
+ {
+ supply_register (FPS_REGNUM, (char *) &(fpregsetp->pr_fsr));
+ }
}
/* Given a pointer to a floating point register set in /proc format
(fpregset_t *), update the register specified by REGNO from gdb's idea
of the current floating point register set. If REGNO is -1, update
them all. */
-/* ??? This will probably need some changes for sparc64. */
+/* This will probably need some changes for sparc64. */
void
-fill_fpregset (fpregsetp, regno)
- prfpregset_t *fpregsetp;
- int regno;
+fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
{
int regi;
char *to;
char *from;
- if (FP0_REGNUM < 0)
+ if (!SPARC_HAS_FPU)
return;
for (regi = FP0_REGNUM; regi < FP_MAX_REGNUM; regi++)
{
if ((regno == -1) || (regno == regi))
{
- from = (char *) ®isters[REGISTER_BYTE (regi)];
+ from = (char *) &deprecated_registers[REGISTER_BYTE (regi)];
to = (char *) &fpregsetp->pr_fr.pr_regs[regi - FP0_REGNUM];
memcpy (to, from, REGISTER_RAW_SIZE (regi));
}
}
- if ((regno == -1) || (regno == FPS_REGNUM))
- {
- fpregsetp->pr_fsr = *(int *) ®isters[REGISTER_BYTE (FPS_REGNUM)];
- }
+
+ if (!(GDB_TARGET_IS_SPARC64)) /* FIXME: does Sparc64 have this register? */
+ if ((regno == -1) || (regno == FPS_REGNUM))
+ {
+ from = (char *)&deprecated_registers[REGISTER_BYTE (FPS_REGNUM)];
+ to = (char *) &fpregsetp->pr_fsr;
+ memcpy (to, from, REGISTER_RAW_SIZE (FPS_REGNUM));
+ }
}
#endif /* USE_PROC_FS */
-
-#ifdef GET_LONGJMP_TARGET
+/* Because of Multi-arch, GET_LONGJMP_TARGET is always defined. So test
+ for a definition of JB_PC. */
+#ifdef JB_PC
/* Figure out where the longjmp will land. We expect that we have just entered
longjmp and haven't yet setup the stack frame, so the args are still in the
This routine returns true on success */
int
-get_longjmp_target (pc)
- CORE_ADDR *pc;
+get_longjmp_target (CORE_ADDR *pc)
{
CORE_ADDR jb_addr;
#define LONGJMP_TARGET_SIZE 4
related to C++ mangling, it is done for C too. */
char *
-sunpro_static_transform_name (name)
- char *name;
+sunpro_static_transform_name (char *name)
{
char *p;
if (name[0] == '$')
/* Utilities for printing registers.
Page numbers refer to the SPARC Architecture Manual. */
-static void dump_ccreg PARAMS ((char *, int));
+static void dump_ccreg (char *, int);
static void
-dump_ccreg (reg, val)
- char *reg;
- int val;
+dump_ccreg (char *reg, int val)
{
/* page 41 */
printf_unfiltered ("%s:%s,%s,%s,%s", reg,
val & 8 ? "N" : "NN",
val & 4 ? "Z" : "NZ",
val & 2 ? "O" : "NO",
- val & 1 ? "C" : "NC"
- );
+ val & 1 ? "C" : "NC");
}
static char *
-decode_asi (val)
- int val;
+decode_asi (int val)
{
/* page 72 */
switch (val)
}
}
-/* PRINT_REGISTER_HOOK routine.
- Pretty print various registers. */
+/* Pretty print various registers. */
/* FIXME: Would be nice if this did some fancy things for 32 bit sparc. */
-void
-sparc_print_register_hook (regno)
- int regno;
+static void
+sparc_print_register_hook (int regno)
{
ULONGEST val;
{
char value[16];
- if (!read_relative_register_raw_bytes (regno, value)
- && !read_relative_register_raw_bytes (regno + 1, value + 4))
+ if (frame_register_read (deprecated_selected_frame, regno, value)
+ && frame_register_read (deprecated_selected_frame, regno + 1, value + 4))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_double, gdb_stdout);
#if 0 /* FIXME: gdb doesn't handle long doubles */
if ((regno & 3) == 0)
{
- if (!read_relative_register_raw_bytes (regno + 2, value + 8)
- && !read_relative_register_raw_bytes (regno + 3, value + 12))
+ if (frame_register_read (deprecated_selected_frame, regno + 2, value + 8)
+ && frame_register_read (deprecated_selected_frame, regno + 3, value + 12))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_long_double, gdb_stdout);
{
char value[16];
- if (!read_relative_register_raw_bytes (regno, value)
- && !read_relative_register_raw_bytes (regno + 1, value + 8))
+ if (frame_register_read (deprecated_selected_frame, regno, value)
+ && frame_register_read (deprecated_selected_frame, regno + 1, value + 8))
{
printf_unfiltered ("\t");
print_floating (value, builtin_type_long_double, gdb_stdout);
val = read_register (regno);
/* pages 40 - 60 */
- switch (regno)
- {
-#ifdef GDB_TARGET_IS_SPARC64
- case CCR_REGNUM:
- printf_unfiltered ("\t");
- dump_ccreg ("xcc", val >> 4);
- printf_unfiltered (", ");
- dump_ccreg ("icc", val & 15);
- break;
- case FPRS_REGNUM:
- printf ("\tfef:%d, du:%d, dl:%d",
- BITS (2, 1), BITS (1, 1), BITS (0, 1));
- break;
- case FSR_REGNUM:
+ if (GDB_TARGET_IS_SPARC64)
+ switch (regno)
{
- static char *fcc[4] =
- {"=", "<", ">", "?"};
- static char *rd[4] =
- {"N", "0", "+", "-"};
- /* Long, yes, but I'd rather leave it as is and use a wide screen. */
- printf ("\t0:%s, 1:%s, 2:%s, 3:%s, rd:%s, tem:%d, ns:%d, ver:%d, ftt:%d, qne:%d, aexc:%d, cexc:%d",
- fcc[BITS (10, 3)], fcc[BITS (32, 3)],
- fcc[BITS (34, 3)], fcc[BITS (36, 3)],
- rd[BITS (30, 3)], BITS (23, 31), BITS (22, 1), BITS (17, 7),
- BITS (14, 7), BITS (13, 1), BITS (5, 31), BITS (0, 31));
+ case CCR_REGNUM:
+ printf_unfiltered ("\t");
+ dump_ccreg ("xcc", val >> 4);
+ printf_unfiltered (", ");
+ dump_ccreg ("icc", val & 15);
break;
- }
- case ASI_REGNUM:
- {
- char *asi = decode_asi (val);
- if (asi != NULL)
- printf ("\t%s", asi);
+ case FPRS_REGNUM:
+ printf ("\tfef:%d, du:%d, dl:%d",
+ BITS (2, 1), BITS (1, 1), BITS (0, 1));
break;
- }
- case VER_REGNUM:
- printf ("\tmanuf:%d, impl:%d, mask:%d, maxtl:%d, maxwin:%d",
- BITS (48, 0xffff), BITS (32, 0xffff),
- BITS (24, 0xff), BITS (8, 0xff), BITS (0, 31));
- break;
- case PSTATE_REGNUM:
- {
- static char *mm[4] =
- {"tso", "pso", "rso", "?"};
- printf ("\tcle:%d, tle:%d, mm:%s, red:%d, pef:%d, am:%d, priv:%d, ie:%d, ag:%d",
- BITS (9, 1), BITS (8, 1), mm[BITS (6, 3)], BITS (5, 1),
- BITS (4, 1), BITS (3, 1), BITS (2, 1), BITS (1, 1),
- BITS (0, 1));
+ case FSR_REGNUM:
+ {
+ static char *fcc[4] =
+ {"=", "<", ">", "?"};
+ static char *rd[4] =
+ {"N", "0", "+", "-"};
+ /* Long, but I'd rather leave it as is and use a wide screen. */
+ printf_filtered ("\t0:%s, 1:%s, 2:%s, 3:%s, rd:%s, tem:%d, ",
+ fcc[BITS (10, 3)], fcc[BITS (32, 3)],
+ fcc[BITS (34, 3)], fcc[BITS (36, 3)],
+ rd[BITS (30, 3)], BITS (23, 31));
+ printf_filtered ("ns:%d, ver:%d, ftt:%d, qne:%d, aexc:%d, cexc:%d",
+ BITS (22, 1), BITS (17, 7), BITS (14, 7),
+ BITS (13, 1), BITS (5, 31), BITS (0, 31));
+ break;
+ }
+ case ASI_REGNUM:
+ {
+ char *asi = decode_asi (val);
+ if (asi != NULL)
+ printf ("\t%s", asi);
+ break;
+ }
+ case VER_REGNUM:
+ printf ("\tmanuf:%d, impl:%d, mask:%d, maxtl:%d, maxwin:%d",
+ BITS (48, 0xffff), BITS (32, 0xffff),
+ BITS (24, 0xff), BITS (8, 0xff), BITS (0, 31));
+ break;
+ case PSTATE_REGNUM:
+ {
+ static char *mm[4] =
+ {"tso", "pso", "rso", "?"};
+ printf_filtered ("\tcle:%d, tle:%d, mm:%s, red:%d, ",
+ BITS (9, 1), BITS (8, 1),
+ mm[BITS (6, 3)], BITS (5, 1));
+ printf_filtered ("pef:%d, am:%d, priv:%d, ie:%d, ag:%d",
+ BITS (4, 1), BITS (3, 1), BITS (2, 1),
+ BITS (1, 1), BITS (0, 1));
+ break;
+ }
+ case TSTATE_REGNUM:
+ /* FIXME: print all 4? */
+ break;
+ case TT_REGNUM:
+ /* FIXME: print all 4? */
+ break;
+ case TPC_REGNUM:
+ /* FIXME: print all 4? */
+ break;
+ case TNPC_REGNUM:
+ /* FIXME: print all 4? */
+ break;
+ case WSTATE_REGNUM:
+ printf ("\tother:%d, normal:%d", BITS (3, 7), BITS (0, 7));
+ break;
+ case CWP_REGNUM:
+ printf ("\t%d", BITS (0, 31));
+ break;
+ case CANSAVE_REGNUM:
+ printf ("\t%-2d before spill", BITS (0, 31));
+ break;
+ case CANRESTORE_REGNUM:
+ printf ("\t%-2d before fill", BITS (0, 31));
+ break;
+ case CLEANWIN_REGNUM:
+ printf ("\t%-2d before clean", BITS (0, 31));
+ break;
+ case OTHERWIN_REGNUM:
+ printf ("\t%d", BITS (0, 31));
break;
}
- case TSTATE_REGNUM:
- /* FIXME: print all 4? */
- break;
- case TT_REGNUM:
- /* FIXME: print all 4? */
- break;
- case TPC_REGNUM:
- /* FIXME: print all 4? */
- break;
- case TNPC_REGNUM:
- /* FIXME: print all 4? */
- break;
- case WSTATE_REGNUM:
- printf ("\tother:%d, normal:%d", BITS (3, 7), BITS (0, 7));
- break;
- case CWP_REGNUM:
- printf ("\t%d", BITS (0, 31));
- break;
- case CANSAVE_REGNUM:
- printf ("\t%-2d before spill", BITS (0, 31));
- break;
- case CANRESTORE_REGNUM:
- printf ("\t%-2d before fill", BITS (0, 31));
- break;
- case CLEANWIN_REGNUM:
- printf ("\t%-2d before clean", BITS (0, 31));
- break;
- case OTHERWIN_REGNUM:
- printf ("\t%d", BITS (0, 31));
- break;
-#else
- case PS_REGNUM:
- printf ("\ticc:%c%c%c%c, pil:%d, s:%d, ps:%d, et:%d, cwp:%d",
- BITS (23, 1) ? 'N' : '-', BITS (22, 1) ? 'Z' : '-',
- BITS (21, 1) ? 'V' : '-', BITS (20, 1) ? 'C' : '-',
- BITS (8, 15), BITS (7, 1), BITS (6, 1), BITS (5, 1),
- BITS (0, 31));
- break;
- case FPS_REGNUM:
+ else /* Sparc32 */
+ switch (regno)
{
- static char *fcc[4] =
- {"=", "<", ">", "?"};
- static char *rd[4] =
- {"N", "0", "+", "-"};
- /* Long, yes, but I'd rather leave it as is and use a wide screen. */
- printf ("\trd:%s, tem:%d, ns:%d, ver:%d, ftt:%d, qne:%d, "
- "fcc:%s, aexc:%d, cexc:%d",
- rd[BITS (30, 3)], BITS (23, 31), BITS (22, 1), BITS (17, 7),
- BITS (14, 7), BITS (13, 1), fcc[BITS (10, 3)], BITS (5, 31),
+ case PS_REGNUM:
+ printf ("\ticc:%c%c%c%c, pil:%d, s:%d, ps:%d, et:%d, cwp:%d",
+ BITS (23, 1) ? 'N' : '-', BITS (22, 1) ? 'Z' : '-',
+ BITS (21, 1) ? 'V' : '-', BITS (20, 1) ? 'C' : '-',
+ BITS (8, 15), BITS (7, 1), BITS (6, 1), BITS (5, 1),
BITS (0, 31));
break;
+ case FPS_REGNUM:
+ {
+ static char *fcc[4] =
+ {"=", "<", ">", "?"};
+ static char *rd[4] =
+ {"N", "0", "+", "-"};
+ /* Long, but I'd rather leave it as is and use a wide screen. */
+ printf ("\trd:%s, tem:%d, ns:%d, ver:%d, ftt:%d, qne:%d, "
+ "fcc:%s, aexc:%d, cexc:%d",
+ rd[BITS (30, 3)], BITS (23, 31), BITS (22, 1), BITS (17, 7),
+ BITS (14, 7), BITS (13, 1), fcc[BITS (10, 3)], BITS (5, 31),
+ BITS (0, 31));
+ break;
+ }
}
-#endif /* GDB_TARGET_IS_SPARC64 */
+#undef BITS
+}
+
+static void
+sparc_print_registers (struct gdbarch *gdbarch,
+ struct ui_file *file,
+ struct frame_info *frame,
+ int regnum, int print_all,
+ void (*print_register_hook) (int))
+{
+ int i;
+ const int numregs = NUM_REGS + NUM_PSEUDO_REGS;
+ char *raw_buffer = alloca (MAX_REGISTER_RAW_SIZE);
+ char *virtual_buffer = alloca (MAX_REGISTER_VIRTUAL_SIZE);
+
+ for (i = 0; i < numregs; i++)
+ {
+ /* Decide between printing all regs, non-float / vector regs, or
+ specific reg. */
+ if (regnum == -1)
+ {
+ if (!print_all)
+ {
+ if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT)
+ continue;
+ if (TYPE_VECTOR (REGISTER_VIRTUAL_TYPE (i)))
+ continue;
+ }
+ }
+ else
+ {
+ if (i != regnum)
+ continue;
+ }
+
+ /* If the register name is empty, it is undefined for this
+ processor, so don't display anything. */
+ if (REGISTER_NAME (i) == NULL || *(REGISTER_NAME (i)) == '\0')
+ continue;
+
+ fputs_filtered (REGISTER_NAME (i), file);
+ print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), file);
+
+ /* Get the data in raw format. */
+ if (! frame_register_read (frame, i, raw_buffer))
+ {
+ fprintf_filtered (file, "*value not available*\n");
+ continue;
+ }
+
+ /* FIXME: cagney/2002-08-03: This code shouldn't be necessary.
+ The function frame_register_read() should have returned the
+ pre-cooked register so no conversion is necessary. */
+ /* Convert raw data to virtual format if necessary. */
+ if (REGISTER_CONVERTIBLE (i))
+ {
+ REGISTER_CONVERT_TO_VIRTUAL (i, REGISTER_VIRTUAL_TYPE (i),
+ raw_buffer, virtual_buffer);
+ }
+ else
+ {
+ memcpy (virtual_buffer, raw_buffer,
+ REGISTER_VIRTUAL_SIZE (i));
+ }
+
+ /* If virtual format is floating, print it that way, and in raw
+ hex. */
+ if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT)
+ {
+ int j;
+
+ val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
+ file, 0, 1, 0, Val_pretty_default);
+
+ fprintf_filtered (file, "\t(raw 0x");
+ for (j = 0; j < REGISTER_RAW_SIZE (i); j++)
+ {
+ int idx;
+ if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
+ idx = j;
+ else
+ idx = REGISTER_RAW_SIZE (i) - 1 - j;
+ fprintf_filtered (file, "%02x", (unsigned char) raw_buffer[idx]);
+ }
+ fprintf_filtered (file, ")");
+ }
+ else
+ {
+ /* Print the register in hex. */
+ val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
+ file, 'x', 1, 0, Val_pretty_default);
+ /* If not a vector register, print it also according to its
+ natural format. */
+ if (TYPE_VECTOR (REGISTER_VIRTUAL_TYPE (i)) == 0)
+ {
+ fprintf_filtered (file, "\t");
+ val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
+ file, 0, 1, 0, Val_pretty_default);
+ }
+ }
+
+ /* Some sparc specific info. */
+ if (print_register_hook != NULL)
+ print_register_hook (i);
+
+ fprintf_filtered (file, "\n");
}
+}
-#undef BITS
+static void
+sparc_print_registers_info (struct gdbarch *gdbarch,
+ struct ui_file *file,
+ struct frame_info *frame,
+ int regnum, int print_all)
+{
+ sparc_print_registers (gdbarch, file, frame, regnum, print_all,
+ sparc_print_register_hook);
+}
+
+void
+sparc_do_registers_info (int regnum, int all)
+{
+ sparc_print_registers_info (current_gdbarch, gdb_stdout, deprecated_selected_frame,
+ regnum, all);
+}
+
+static void
+sparclet_print_registers_info (struct gdbarch *gdbarch,
+ struct ui_file *file,
+ struct frame_info *frame,
+ int regnum, int print_all)
+{
+ sparc_print_registers (gdbarch, file, frame, regnum, print_all, NULL);
}
+
+void
+sparclet_do_registers_info (int regnum, int all)
+{
+ sparclet_print_registers_info (current_gdbarch, gdb_stdout,
+ deprecated_selected_frame, regnum, all);
+}
+
\f
int
-gdb_print_insn_sparc (memaddr, info)
- bfd_vma memaddr;
- disassemble_info *info;
+gdb_print_insn_sparc (bfd_vma memaddr, disassemble_info *info)
{
/* It's necessary to override mach again because print_insn messes it up. */
info->mach = TARGET_ARCHITECTURE->mach;
}
\f
/* The SPARC passes the arguments on the stack; arguments smaller
- than an int are promoted to an int. */
+ than an int are promoted to an int. The first 6 words worth of
+ args are also passed in registers o0 - o5. */
CORE_ADDR
-sparc_push_arguments (nargs, args, sp, struct_return, struct_addr)
- int nargs;
- value_ptr *args;
- CORE_ADDR sp;
- int struct_return;
- CORE_ADDR struct_addr;
+sparc32_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
+ int struct_return, CORE_ADDR struct_addr)
{
- int i;
+ int i, j, oregnum;
int accumulate_size = 0;
struct sparc_arg
{
int offset;
};
struct sparc_arg *sparc_args =
- (struct sparc_arg *) alloca (nargs * sizeof (struct sparc_arg));
+ (struct sparc_arg *) alloca (nargs * sizeof (struct sparc_arg));
struct sparc_arg *m_arg;
/* Promote arguments if necessary, and calculate their stack offsets
and sizes. */
for (i = 0, m_arg = sparc_args; i < nargs; i++, m_arg++)
{
- value_ptr arg = args[i];
+ struct value *arg = args[i];
struct type *arg_type = check_typedef (VALUE_TYPE (arg));
/* Cast argument to long if necessary as the compiler does it too. */
switch (TYPE_CODE (arg_type))
sp = ((sp - accumulate_size) & ~7) + CALL_DUMMY_STACK_ADJUST;
/* `Push' arguments on the stack. */
- for (i = nargs; m_arg--, --i >= 0;)
- write_memory (sp + m_arg->offset, m_arg->contents, m_arg->len);
+ for (i = 0, oregnum = 0, m_arg = sparc_args;
+ i < nargs;
+ i++, m_arg++)
+ {
+ write_memory (sp + m_arg->offset, m_arg->contents, m_arg->len);
+ for (j = 0;
+ j < m_arg->len && oregnum < 6;
+ j += SPARC_INTREG_SIZE, oregnum++)
+ deprecated_write_register_gen (O0_REGNUM + oregnum, m_arg->contents + j);
+ }
return sp;
}
into VALBUF. */
void
-sparc_extract_return_value (type, regbuf, valbuf)
- struct type *type;
- char *regbuf;
- char *valbuf;
+sparc32_extract_return_value (struct type *type, char *regbuf, char *valbuf)
{
int typelen = TYPE_LENGTH (type);
int regsize = REGISTER_RAW_SIZE (O0_REGNUM);
memcpy (valbuf,
®buf[O0_REGNUM * regsize +
(typelen >= regsize
- || TARGET_BYTE_ORDER == LITTLE_ENDIAN ? 0
+ || TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE ? 0
: regsize - typelen)],
typelen);
}
values are returned in register %o0. */
void
-sparc_store_return_value (type, valbuf)
- struct type *type;
- char *valbuf;
+sparc_store_return_value (struct type *type, char *valbuf)
{
int regno;
- char buffer[MAX_REGISTER_RAW_SIZE];
+ char *buffer;
+
+ buffer = alloca (MAX_REGISTER_RAW_SIZE);
if (TYPE_CODE (type) == TYPE_CODE_FLT && SPARC_HAS_FPU)
/* Floating-point values are returned in the register pair */
/* Add leading zeros to the value. */
if (TYPE_LENGTH (type) < REGISTER_RAW_SIZE (regno))
{
- bzero (buffer, REGISTER_RAW_SIZE (regno));
+ memset (buffer, 0, REGISTER_RAW_SIZE (regno));
memcpy (buffer + REGISTER_RAW_SIZE (regno) - TYPE_LENGTH (type), valbuf,
TYPE_LENGTH (type));
- write_register_bytes (REGISTER_BYTE (regno), buffer,
- REGISTER_RAW_SIZE (regno));
+ deprecated_write_register_gen (regno, buffer);
}
else
- write_register_bytes (REGISTER_BYTE (regno), valbuf, TYPE_LENGTH (type));
+ deprecated_write_register_bytes (REGISTER_BYTE (regno), valbuf,
+ TYPE_LENGTH (type));
+}
+
+extern void
+sparclet_store_return_value (struct type *type, char *valbuf)
+{
+ /* Other values are returned in register %o0. */
+ deprecated_write_register_bytes (REGISTER_BYTE (O0_REGNUM), valbuf,
+ TYPE_LENGTH (type));
}
+#ifndef CALL_DUMMY_CALL_OFFSET
+#define CALL_DUMMY_CALL_OFFSET \
+ (gdbarch_tdep (current_gdbarch)->call_dummy_call_offset)
+#endif /* CALL_DUMMY_CALL_OFFSET */
+
/* Insert the function address into a call dummy instruction sequence
stored at DUMMY.
has already been customized for a different function). */
void
-sparc_fix_call_dummy (dummy, pc, fun, value_type, using_gcc)
- char *dummy;
- CORE_ADDR pc;
- CORE_ADDR fun;
- struct type *value_type;
- int using_gcc;
+sparc_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun,
+ struct type *value_type, int using_gcc)
{
int i;
| (((fun - (pc + CALL_DUMMY_CALL_OFFSET)) >> 2)
& 0x3fffffff)));
- /* Comply with strange Sun cc calling convention for struct-returning
- functions. */
- if (!using_gcc
- && (TYPE_CODE (value_type) == TYPE_CODE_STRUCT
- || TYPE_CODE (value_type) == TYPE_CODE_UNION))
- store_unsigned_integer (dummy + CALL_DUMMY_CALL_OFFSET + 8, 4,
- TYPE_LENGTH (value_type) & 0x1fff);
-
-#ifndef GDB_TARGET_IS_SPARC64
- /* If this is not a simulator target, change the first four instructions
- of the call dummy to NOPs. Those instructions include a 'save'
- instruction and are designed to work around problems with register
- window flushing in the simulator. */
- if (strcmp (target_shortname, "sim") != 0)
+ /* If the called function returns an aggregate value, fill in the UNIMP
+ instruction containing the size of the returned aggregate return value,
+ which follows the call instruction.
+ For details see the SPARC Architecture Manual Version 8, Appendix D.3.
+
+ Adjust the call_dummy_breakpoint_offset for the bp_call_dummy breakpoint
+ to the proper address in the call dummy, so that `finish' after a stop
+ in a call dummy works.
+ Tweeking current_gdbarch is not an optimal solution, but the call to
+ sparc_fix_call_dummy is immediately followed by a call to run_stack_dummy,
+ which is the only function where dummy_breakpoint_offset is actually
+ used, if it is non-zero. */
+ if (TYPE_CODE (value_type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (value_type) == TYPE_CODE_UNION)
{
- for (i = 0; i < 4; i++)
- store_unsigned_integer (dummy + (i * 4), 4, 0x01000000);
+ store_unsigned_integer (dummy + CALL_DUMMY_CALL_OFFSET + 8, 4,
+ TYPE_LENGTH (value_type) & 0x1fff);
+ set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 0x30);
+ }
+ else
+ set_gdbarch_call_dummy_breakpoint_offset (current_gdbarch, 0x2c);
+
+ if (!(GDB_TARGET_IS_SPARC64))
+ {
+ /* If this is not a simulator target, change the first four
+ instructions of the call dummy to NOPs. Those instructions
+ include a 'save' instruction and are designed to work around
+ problems with register window flushing in the simulator. */
+
+ if (strcmp (target_shortname, "sim") != 0)
+ {
+ for (i = 0; i < 4; i++)
+ store_unsigned_integer (dummy + (i * 4), 4, 0x01000000);
+ }
}
-#endif
/* If this is a bi-endian target, GDB has written the call dummy
in little-endian order. We must byte-swap it back to big-endian. */
/* Set target byte order based on machine type. */
static int
-sparc_target_architecture_hook (ap)
- const bfd_arch_info_type *ap;
+sparc_target_architecture_hook (const bfd_arch_info_type *ap)
{
int i, j;
if (ap->mach == bfd_mach_sparc_sparclite_le)
{
- if (TARGET_BYTE_ORDER_SELECTABLE_P)
- {
- target_byte_order = LITTLE_ENDIAN;
- bi_endian = 1;
- }
- else
- {
- warning ("This GDB does not support little endian sparclite.");
- }
+ target_byte_order = BFD_ENDIAN_LITTLE;
+ bi_endian = 1;
}
else
bi_endian = 0;
}
\f
+/*
+ * Module "constructor" function.
+ */
+
+static struct gdbarch * sparc_gdbarch_init (struct gdbarch_info info,
+ struct gdbarch_list *arches);
+static void sparc_dump_tdep (struct gdbarch *, struct ui_file *);
+
void
-_initialize_sparc_tdep ()
+_initialize_sparc_tdep (void)
{
+ /* Hook us into the gdbarch mechanism. */
+ gdbarch_register (bfd_arch_sparc, sparc_gdbarch_init, sparc_dump_tdep);
+
tm_print_insn = gdb_print_insn_sparc;
tm_print_insn_info.mach = TM_PRINT_INSN_MACH; /* Selects sparc/sparclite */
target_architecture_hook = sparc_target_architecture_hook;
}
+/* Compensate for stack bias. Note that we currently don't handle
+ mixed 32/64 bit code. */
-#ifdef GDB_TARGET_IS_SPARC64
-
-/* Compensate for stack bias. Note that we currently don't handle mixed
- 32/64 bit code. */
CORE_ADDR
-sparc64_read_sp ()
+sparc64_read_sp (void)
{
CORE_ADDR sp = read_register (SP_REGNUM);
}
CORE_ADDR
-sparc64_read_fp ()
+sparc64_read_fp (void)
{
CORE_ADDR fp = read_register (FP_REGNUM);
}
void
-sparc64_write_sp (val)
- CORE_ADDR val;
+sparc64_write_sp (CORE_ADDR val)
{
CORE_ADDR oldsp = read_register (SP_REGNUM);
if (oldsp & 1)
write_register (SP_REGNUM, val);
}
-void
-sparc64_write_fp (val)
- CORE_ADDR val;
-{
- CORE_ADDR oldfp = read_register (FP_REGNUM);
- if (oldfp & 1)
- write_register (FP_REGNUM, val - 2047);
- else
- write_register (FP_REGNUM, val);
-}
+/* The SPARC 64 ABI passes floating-point arguments in FP0 to FP31,
+ and all other arguments in O0 to O5. They are also copied onto
+ the stack in the correct places. Apparently (empirically),
+ structs of less than 16 bytes are passed member-by-member in
+ separate registers, but I am unable to figure out the algorithm.
+ Some members go in floating point regs, but I don't know which.
+
+ FIXME: Handle small structs (less than 16 bytes containing floats).
-/* The SPARC 64 ABI passes floating-point arguments in FP0-31. They are
- also copied onto the stack in the correct places. */
+ The counting regimen for using both integer and FP registers
+ for argument passing is rather odd -- a single counter is used
+ for both; this means that if the arguments alternate between
+ int and float, we will waste every other register of both types. */
CORE_ADDR
-sp64_push_arguments (nargs, args, sp, struct_return, struct_retaddr)
- int nargs;
- value_ptr *args;
- CORE_ADDR sp;
- unsigned char struct_return;
- CORE_ADDR struct_retaddr;
-{
- int x;
- int regnum = 0;
+sparc64_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
+ int struct_return, CORE_ADDR struct_retaddr)
+{
+ int i, j, register_counter = 0;
CORE_ADDR tempsp;
+ struct type *sparc_intreg_type =
+ TYPE_LENGTH (builtin_type_long) == SPARC_INTREG_SIZE ?
+ builtin_type_long : builtin_type_long_long;
- sp = (sp & ~(((unsigned long) TYPE_LENGTH (builtin_type_long)) - 1UL));
+ sp = (sp & ~(((unsigned long) SPARC_INTREG_SIZE) - 1UL));
/* Figure out how much space we'll need. */
- for (x = nargs - 1; x >= 0; x--)
+ for (i = nargs - 1; i >= 0; i--)
{
- int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[x])));
- value_ptr copyarg = args[x];
+ int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[i])));
+ struct value *copyarg = args[i];
int copylen = len;
- /* This code is, of course, no longer correct. */
- if (copylen < TYPE_LENGTH (builtin_type_long))
+ if (copylen < SPARC_INTREG_SIZE)
{
- copyarg = value_cast (builtin_type_long, copyarg);
- copylen = TYPE_LENGTH (builtin_type_long);
+ copyarg = value_cast (sparc_intreg_type, copyarg);
+ copylen = SPARC_INTREG_SIZE;
}
sp -= copylen;
}
sp = sp & ~7;
tempsp = sp;
- /* Now write the arguments onto the stack, while writing FP arguments
- into the FP registers. */
- for (x = 0; x < nargs; x++)
+ /* if STRUCT_RETURN, then first argument is the struct return location. */
+ if (struct_return)
+ write_register (O0_REGNUM + register_counter++, struct_retaddr);
+
+ /* Now write the arguments onto the stack, while writing FP
+ arguments into the FP registers, and other arguments into the
+ first six 'O' registers. */
+
+ for (i = 0; i < nargs; i++)
{
- int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[x])));
- value_ptr copyarg = args[x];
+ int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[i])));
+ struct value *copyarg = args[i];
+ enum type_code typecode = TYPE_CODE (VALUE_TYPE (args[i]));
int copylen = len;
- /* This code is, of course, no longer correct. */
- if (copylen < TYPE_LENGTH (builtin_type_long))
- {
- copyarg = value_cast (builtin_type_long, copyarg);
- copylen = TYPE_LENGTH (builtin_type_long);
- }
+ if (typecode == TYPE_CODE_INT ||
+ typecode == TYPE_CODE_BOOL ||
+ typecode == TYPE_CODE_CHAR ||
+ typecode == TYPE_CODE_RANGE ||
+ typecode == TYPE_CODE_ENUM)
+ if (len < SPARC_INTREG_SIZE)
+ {
+ /* Small ints will all take up the size of one intreg on
+ the stack. */
+ copyarg = value_cast (sparc_intreg_type, copyarg);
+ copylen = SPARC_INTREG_SIZE;
+ }
+
write_memory (tempsp, VALUE_CONTENTS (copyarg), copylen);
tempsp += copylen;
- if (TYPE_CODE (VALUE_TYPE (args[x])) == TYPE_CODE_FLT && regnum < 32)
+
+ /* Corner case: Structs consisting of a single float member are floats.
+ * FIXME! I don't know about structs containing multiple floats!
+ * Structs containing mixed floats and ints are even more weird.
+ */
+
+
+
+ /* Separate float args from all other args. */
+ if (typecode == TYPE_CODE_FLT && SPARC_HAS_FPU)
{
- /* This gets copied into a FP register. */
- int nextreg = regnum + 2;
- char *data = VALUE_CONTENTS (args[x]);
- /* Floats go into the lower half of a FP register pair; quads
- use 2 pairs. */
-
- if (len == 16)
- nextreg += 2;
- else if (len == 4)
- regnum++;
-
- write_register_bytes (REGISTER_BYTE (FP0_REGNUM + regnum),
- data,
- len);
- regnum = nextreg;
+ if (register_counter < 16)
+ {
+ /* This arg gets copied into a FP register. */
+ int fpreg;
+
+ switch (len) {
+ case 4: /* Single-precision (float) */
+ fpreg = FP0_REGNUM + 2 * register_counter + 1;
+ register_counter += 1;
+ break;
+ case 8: /* Double-precision (double) */
+ fpreg = FP0_REGNUM + 2 * register_counter;
+ register_counter += 1;
+ break;
+ case 16: /* Quad-precision (long double) */
+ fpreg = FP0_REGNUM + 2 * register_counter;
+ register_counter += 2;
+ break;
+ default:
+ internal_error (__FILE__, __LINE__, "bad switch");
+ }
+ deprecated_write_register_bytes (REGISTER_BYTE (fpreg),
+ VALUE_CONTENTS (args[i]),
+ len);
+ }
}
+ else /* all other args go into the first six 'o' registers */
+ {
+ for (j = 0;
+ j < len && register_counter < 6;
+ j += SPARC_INTREG_SIZE)
+ {
+ int oreg = O0_REGNUM + register_counter;
+
+ deprecated_write_register_gen (oreg, VALUE_CONTENTS (copyarg) + j);
+ register_counter += 1;
+ }
+ }
}
return sp;
}
/* Values <= 32 bytes are returned in o0-o3 (floating-point values are
returned in f0-f3). */
+
void
-sparc64_extract_return_value (type, regbuf, valbuf, bitoffset)
- struct type *type;
- char *regbuf;
- char *valbuf;
- int bitoffset;
+sp64_extract_return_value (struct type *type, char *regbuf, char *valbuf,
+ int bitoffset)
{
int typelen = TYPE_LENGTH (type);
int regsize = REGISTER_RAW_SIZE (O0_REGNUM);
if (typecode == TYPE_CODE_STRUCT)
{
- sparc64_extract_return_value (f->type,
- regbuf,
- valbuf,
- bitoffset + f->loc.bitpos);
+ sp64_extract_return_value (f->type,
+ regbuf,
+ valbuf,
+ bitoffset + f->loc.bitpos);
}
- else if (typecode == TYPE_CODE_FLT)
+ else if (typecode == TYPE_CODE_FLT && SPARC_HAS_FPU)
{
memcpy (valbuf + where, &f0[whichreg * 4] + remainder, size);
}
}
}
+extern void
+sparc64_extract_return_value (struct type *type, char *regbuf, char *valbuf)
+{
+ sp64_extract_return_value (type, regbuf, valbuf, 0);
+}
+
+extern void
+sparclet_extract_return_value (struct type *type,
+ char *regbuf,
+ char *valbuf)
+{
+ regbuf += REGISTER_RAW_SIZE (O0_REGNUM) * 8;
+ if (TYPE_LENGTH (type) < REGISTER_RAW_SIZE (O0_REGNUM))
+ regbuf += REGISTER_RAW_SIZE (O0_REGNUM) - TYPE_LENGTH (type);
+
+ memcpy ((void *) valbuf, regbuf, TYPE_LENGTH (type));
+}
+
+
+extern CORE_ADDR
+sparc32_stack_align (CORE_ADDR addr)
+{
+ return ((addr + 7) & -8);
+}
+
+extern CORE_ADDR
+sparc64_stack_align (CORE_ADDR addr)
+{
+ return ((addr + 15) & -16);
+}
+
+extern void
+sparc_print_extra_frame_info (struct frame_info *fi)
+{
+ if (fi && get_frame_extra_info (fi) && get_frame_extra_info (fi)->flat)
+ printf_filtered (" flat, pc saved at 0x%s, fp saved at 0x%s\n",
+ paddr_nz (get_frame_extra_info (fi)->pc_addr),
+ paddr_nz (get_frame_extra_info (fi)->fp_addr));
+}
+
+/* MULTI_ARCH support */
+
+static const char *
+sparc32_register_name (int regno)
+{
+ static char *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"
+ };
+
+ if (regno < 0 ||
+ regno >= (sizeof (register_names) / sizeof (register_names[0])))
+ return NULL;
+ else
+ return register_names[regno];
+}
+
+static const char *
+sparc64_register_name (int regno)
+{
+ static char *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",
+ "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46",
+ "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62",
+
+ "pc", "npc", "ccr", "fsr", "fprs", "y", "asi", "ver",
+ "tick", "pil", "pstate", "tstate", "tba", "tl", "tt", "tpc",
+ "tnpc", "wstate", "cwp", "cansave", "canrestore", "cleanwin", "otherwin",
+ "asr16", "asr17", "asr18", "asr19", "asr20", "asr21", "asr22", "asr23",
+ "asr24", "asr25", "asr26", "asr27", "asr28", "asr29", "asr30", "asr31",
+ /* These are here at the end to simplify removing them if we have to. */
+ "icc", "xcc", "fcc0", "fcc1", "fcc2", "fcc3"
+ };
+
+ if (regno < 0 ||
+ regno >= (sizeof (register_names) / sizeof (register_names[0])))
+ return NULL;
+ else
+ return register_names[regno];
+}
+
+static const char *
+sparclite_register_name (int regno)
+{
+ static char *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",
+ "dia1", "dia2", "dda1", "dda2", "ddv1", "ddv2", "dcr", "dsr"
+ };
+
+ if (regno < 0 ||
+ regno >= (sizeof (register_names) / sizeof (register_names[0])))
+ return NULL;
+ else
+ return register_names[regno];
+}
+
+static const char *
+sparclet_register_name (int regno)
+{
+ static char *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",
+
+ "", "", "", "", "", "", "", "", /* no floating point registers */
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "",
+
+ "y", "psr", "wim", "tbr", "pc", "npc", "", "", /* no FPSR or CPSR */
+ "ccsr", "ccpr", "cccrcr", "ccor", "ccobr", "ccibr", "ccir", "",
+
+ /* ASR15 ASR19 (don't display them) */
+ "asr1", "", "asr17", "asr18", "", "asr20", "asr21", "asr22"
+ /* None of the rest get displayed */
+#if 0
+ "awr0", "awr1", "awr2", "awr3", "awr4", "awr5", "awr6", "awr7",
+ "awr8", "awr9", "awr10", "awr11", "awr12", "awr13", "awr14", "awr15",
+ "awr16", "awr17", "awr18", "awr19", "awr20", "awr21", "awr22", "awr23",
+ "awr24", "awr25", "awr26", "awr27", "awr28", "awr29", "awr30", "awr31",
+ "apsr"
+#endif /* 0 */
+ };
+
+ if (regno < 0 ||
+ regno >= (sizeof (register_names) / sizeof (register_names[0])))
+ return NULL;
+ else
+ return register_names[regno];
+}
+
+CORE_ADDR
+sparc_push_return_address (CORE_ADDR pc_unused, CORE_ADDR sp)
+{
+ if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
+ {
+ /* The return PC of the dummy_frame is the former 'current' PC
+ (where we were before we made the target function call).
+ This is saved in %i7 by push_dummy_frame.
+
+ We will save the 'call dummy location' (ie. the address
+ to which the target function will return) in %o7.
+ This address will actually be the program's entry point.
+ There will be a special call_dummy breakpoint there. */
+
+ write_register (O7_REGNUM,
+ CALL_DUMMY_ADDRESS () - 8);
+ }
+
+ return sp;
+}
+
+/* Should call_function allocate stack space for a struct return? */
+
+static int
+sparc64_use_struct_convention (int gcc_p, struct type *type)
+{
+ return (TYPE_LENGTH (type) > 32);
+}
+
+/* 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"?
+
+ MVS: That's the offset from where the sp is now, to where the
+ subroutine is gonna expect to find the struct return address. */
+
+static void
+sparc32_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
+{
+ char *val;
+ CORE_ADDR o7;
+
+ val = alloca (SPARC_INTREG_SIZE);
+ store_unsigned_integer (val, SPARC_INTREG_SIZE, addr);
+ write_memory (sp + (16 * SPARC_INTREG_SIZE), val, SPARC_INTREG_SIZE);
+
+ if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
+ {
+ /* Now adjust the value of the link register, which was previously
+ stored by push_return_address. Functions that return structs are
+ peculiar in that they return to link register + 12, rather than
+ link register + 8. */
+
+ o7 = read_register (O7_REGNUM);
+ write_register (O7_REGNUM, o7 - 4);
+ }
+}
+
+static void
+sparc64_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
+{
+ /* FIXME: V9 uses %o0 for this. */
+ /* FIXME MVS: Only for small enough structs!!! */
+
+ target_write_memory (sp + (16 * SPARC_INTREG_SIZE),
+ (char *) &addr, SPARC_INTREG_SIZE);
+#if 0
+ if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
+ {
+ /* Now adjust the value of the link register, which was previously
+ stored by push_return_address. Functions that return structs are
+ peculiar in that they return to link register + 12, rather than
+ link register + 8. */
+ write_register (O7_REGNUM, read_register (O7_REGNUM) - 4);
+ }
#endif
+}
+
+/* Default target data type for register REGNO. */
+
+static struct type *
+sparc32_register_virtual_type (int regno)
+{
+ if (regno == PC_REGNUM ||
+ regno == FP_REGNUM ||
+ regno == SP_REGNUM)
+ return builtin_type_unsigned_int;
+ if (regno < 32)
+ return builtin_type_int;
+ if (regno < 64)
+ return builtin_type_float;
+ return builtin_type_int;
+}
+
+static struct type *
+sparc64_register_virtual_type (int regno)
+{
+ if (regno == PC_REGNUM ||
+ regno == FP_REGNUM ||
+ regno == SP_REGNUM)
+ return builtin_type_unsigned_long_long;
+ if (regno < 32)
+ return builtin_type_long_long;
+ if (regno < 64)
+ return builtin_type_float;
+ if (regno < 80)
+ return builtin_type_double;
+ return builtin_type_long_long;
+}
+
+/* Number of bytes of storage in the actual machine representation for
+ register REGNO. */
+
+static int
+sparc32_register_size (int regno)
+{
+ return 4;
+}
+
+static int
+sparc64_register_size (int regno)
+{
+ return (regno < 32 ? 8 : regno < 64 ? 4 : 8);
+}
+
+/* Index within the `registers' buffer of the first byte of the space
+ for register REGNO. */
+
+static int
+sparc32_register_byte (int regno)
+{
+ return (regno * 4);
+}
+
+static int
+sparc64_register_byte (int regno)
+{
+ if (regno < 32)
+ return regno * 8;
+ else if (regno < 64)
+ return 32 * 8 + (regno - 32) * 4;
+ else if (regno < 80)
+ return 32 * 8 + 32 * 4 + (regno - 64) * 8;
+ else
+ return 64 * 8 + (regno - 80) * 8;
+}
+
+/* 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. */
+
+static CORE_ADDR
+sparc_saved_pc_after_call (struct frame_info *fi)
+{
+ return sparc_pc_adjust (read_register (RP_REGNUM));
+}
+
+/* Convert registers between 'raw' and 'virtual' formats.
+ They are the same on sparc, so there's nothing to do. */
+
+static void
+sparc_convert_to_virtual (int regnum, struct type *type, char *from, char *to)
+{ /* do nothing (should never be called) */
+}
+
+static void
+sparc_convert_to_raw (struct type *type, int regnum, char *from, char *to)
+{ /* do nothing (should never be called) */
+}
+
+/* Init saved regs: nothing to do, just a place-holder function. */
+
+static void
+sparc_frame_init_saved_regs (struct frame_info *fi_ignored)
+{ /* no-op */
+}
+
+/* gdbarch fix call dummy:
+ All this function does is rearrange the arguments before calling
+ sparc_fix_call_dummy (which does the real work). */
+
+static void
+sparc_gdbarch_fix_call_dummy (char *dummy,
+ CORE_ADDR pc,
+ CORE_ADDR fun,
+ int nargs,
+ struct value **args,
+ struct type *type,
+ int gcc_p)
+{
+ if (CALL_DUMMY_LOCATION == ON_STACK)
+ sparc_fix_call_dummy (dummy, pc, fun, type, gcc_p);
+}
+
+/* CALL_DUMMY_ADDRESS: fetch the breakpoint address for a call dummy. */
+
+static CORE_ADDR
+sparc_call_dummy_address (void)
+{
+ return (CALL_DUMMY_START_OFFSET) + CALL_DUMMY_BREAKPOINT_OFFSET;
+}
+
+/* Supply the Y register number to those that need it. */
+
+int
+sparc_y_regnum (void)
+{
+ return gdbarch_tdep (current_gdbarch)->y_regnum;
+}
+
+int
+sparc_reg_struct_has_addr (int gcc_p, struct type *type)
+{
+ if (GDB_TARGET_IS_SPARC64)
+ return (TYPE_LENGTH (type) > 32);
+ else
+ return (gcc_p != 1);
+}
+
+int
+sparc_intreg_size (void)
+{
+ return SPARC_INTREG_SIZE;
+}
+
+static int
+sparc_return_value_on_stack (struct type *type)
+{
+ if (TYPE_CODE (type) == TYPE_CODE_FLT &&
+ TYPE_LENGTH (type) > 8)
+ return 1;
+ else
+ return 0;
+}
+
+/*
+ * Gdbarch "constructor" function.
+ */
+
+#define SPARC32_CALL_DUMMY_ON_STACK
+
+#define SPARC_SP_REGNUM 14
+#define SPARC_FP_REGNUM 30
+#define SPARC_FP0_REGNUM 32
+#define SPARC32_NPC_REGNUM 69
+#define SPARC32_PC_REGNUM 68
+#define SPARC32_Y_REGNUM 64
+#define SPARC64_PC_REGNUM 80
+#define SPARC64_NPC_REGNUM 81
+#define SPARC64_Y_REGNUM 85
+
+static struct gdbarch *
+sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+{
+ struct gdbarch *gdbarch;
+ struct gdbarch_tdep *tdep;
+
+ static LONGEST call_dummy_32[] =
+ { 0xbc100001, 0x9de38000, 0xbc100002, 0xbe100003,
+ 0xda03a058, 0xd803a054, 0xd603a050, 0xd403a04c,
+ 0xd203a048, 0x40000000, 0xd003a044, 0x01000000,
+ 0x91d02001, 0x01000000
+ };
+ static LONGEST call_dummy_64[] =
+ { 0x9de3bec0fd3fa7f7LL, 0xf93fa7eff53fa7e7LL,
+ 0xf13fa7dfed3fa7d7LL, 0xe93fa7cfe53fa7c7LL,
+ 0xe13fa7bfdd3fa7b7LL, 0xd93fa7afd53fa7a7LL,
+ 0xd13fa79fcd3fa797LL, 0xc93fa78fc53fa787LL,
+ 0xc13fa77fcc3fa777LL, 0xc83fa76fc43fa767LL,
+ 0xc03fa75ffc3fa757LL, 0xf83fa74ff43fa747LL,
+ 0xf03fa73f01000000LL, 0x0100000001000000LL,
+ 0x0100000091580000LL, 0xd027a72b93500000LL,
+ 0xd027a72791480000LL, 0xd027a72391400000LL,
+ 0xd027a71fda5ba8a7LL, 0xd85ba89fd65ba897LL,
+ 0xd45ba88fd25ba887LL, 0x9fc02000d05ba87fLL,
+ 0x0100000091d02001LL, 0x0100000001000000LL
+ };
+ static LONGEST call_dummy_nil[] = {0};
+
+ /* Try to determine the OS ABI of the object we are loading. */
+
+ if (info.abfd != NULL
+ && info.osabi == GDB_OSABI_UNKNOWN)
+ {
+ /* If it's an ELF file, assume it's Solaris. */
+ if (bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
+ info.osabi = GDB_OSABI_SOLARIS;
+ }
+
+ /* First see if there is already a gdbarch that can satisfy the request. */
+ arches = gdbarch_list_lookup_by_info (arches, &info);
+ if (arches != NULL)
+ return arches->gdbarch;
+
+ /* None found: is the request for a sparc architecture? */
+ if (info.bfd_arch_info->arch != bfd_arch_sparc)
+ return NULL; /* No; then it's not for us. */
+
+ /* Yes: create a new gdbarch for the specified machine type. */
+ tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep));
+ gdbarch = gdbarch_alloc (&info, tdep);
+
+ /* First set settings that are common for all sparc architectures. */
+ set_gdbarch_believe_pcc_promotion (gdbarch, 1);
+ set_gdbarch_breakpoint_from_pc (gdbarch, memory_breakpoint_from_pc);
+ set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
+ set_gdbarch_call_dummy_p (gdbarch, 1);
+ set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 1);
+ set_gdbarch_decr_pc_after_break (gdbarch, 0);
+ set_gdbarch_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
+ set_gdbarch_deprecated_extract_struct_value_address (gdbarch, sparc_extract_struct_value_address);
+ set_gdbarch_fix_call_dummy (gdbarch, sparc_gdbarch_fix_call_dummy);
+ set_gdbarch_float_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_fp_regnum (gdbarch, SPARC_FP_REGNUM);
+ set_gdbarch_fp0_regnum (gdbarch, SPARC_FP0_REGNUM);
+ set_gdbarch_frame_chain (gdbarch, sparc_frame_chain);
+ set_gdbarch_frame_init_saved_regs (gdbarch, sparc_frame_init_saved_regs);
+ set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
+ set_gdbarch_frame_saved_pc (gdbarch, sparc_frame_saved_pc);
+ set_gdbarch_frameless_function_invocation (gdbarch,
+ frameless_look_for_prologue);
+ set_gdbarch_get_saved_register (gdbarch, sparc_get_saved_register);
+ set_gdbarch_init_extra_frame_info (gdbarch, sparc_init_extra_frame_info);
+ set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+ set_gdbarch_int_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_long_double_bit (gdbarch, 16 * TARGET_CHAR_BIT);
+ set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
+ set_gdbarch_max_register_raw_size (gdbarch, 8);
+ set_gdbarch_max_register_virtual_size (gdbarch, 8);
+ set_gdbarch_pop_frame (gdbarch, sparc_pop_frame);
+ set_gdbarch_push_return_address (gdbarch, sparc_push_return_address);
+ set_gdbarch_push_dummy_frame (gdbarch, sparc_push_dummy_frame);
+ set_gdbarch_read_pc (gdbarch, generic_target_read_pc);
+ set_gdbarch_register_convert_to_raw (gdbarch, sparc_convert_to_raw);
+ set_gdbarch_register_convert_to_virtual (gdbarch,
+ sparc_convert_to_virtual);
+ set_gdbarch_register_convertible (gdbarch,
+ generic_register_convertible_not);
+ set_gdbarch_reg_struct_has_addr (gdbarch, sparc_reg_struct_has_addr);
+ set_gdbarch_return_value_on_stack (gdbarch, sparc_return_value_on_stack);
+ set_gdbarch_saved_pc_after_call (gdbarch, sparc_saved_pc_after_call);
+ set_gdbarch_prologue_frameless_p (gdbarch, sparc_prologue_frameless_p);
+ set_gdbarch_short_bit (gdbarch, 2 * TARGET_CHAR_BIT);
+ set_gdbarch_skip_prologue (gdbarch, sparc_skip_prologue);
+ set_gdbarch_sp_regnum (gdbarch, SPARC_SP_REGNUM);
+ set_gdbarch_deprecated_use_generic_dummy_frames (gdbarch, 0);
+ set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
+
+ /*
+ * Settings that depend only on 32/64 bit word size
+ */
+
+ switch (info.bfd_arch_info->mach)
+ {
+ case bfd_mach_sparc:
+ case bfd_mach_sparc_sparclet:
+ case bfd_mach_sparc_sparclite:
+ case bfd_mach_sparc_v8plus:
+ case bfd_mach_sparc_v8plusa:
+ case bfd_mach_sparc_sparclite_le:
+ /* 32-bit machine types: */
+
+#ifdef SPARC32_CALL_DUMMY_ON_STACK
+ set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_on_stack);
+ set_gdbarch_call_dummy_address (gdbarch, sparc_call_dummy_address);
+ set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0x30);
+ set_gdbarch_call_dummy_length (gdbarch, 0x38);
+
+ /* NOTE: cagney/2002-04-26: Based from info posted by Peter
+ Schauer around Oct '99. Briefly, due to aspects of the SPARC
+ ABI, it isn't possible to use ON_STACK with a strictly
+ compliant compiler.
+
+ Peter Schauer writes ...
+
+ No, any call from GDB to a user function returning a
+ struct/union will fail miserably. Try this:
+
+ *NOINDENT*
+ struct x
+ {
+ int a[4];
+ };
+
+ struct x gx;
+
+ struct x
+ sret ()
+ {
+ return gx;
+ }
+
+ main ()
+ {
+ int i;
+ for (i = 0; i < 4; i++)
+ gx.a[i] = i + 1;
+ gx = sret ();
+ }
+ *INDENT*
+
+ Set a breakpoint at the gx = sret () statement, run to it and
+ issue a `print sret()'. It will not succed with your
+ approach, and I doubt that continuing the program will work
+ as well.
+
+ For details of the ABI see the Sparc Architecture Manual. I
+ have Version 8 (Prentice Hall ISBN 0-13-825001-4) and the
+ calling conventions for functions returning aggregate values
+ are explained in Appendix D.3. */
+
+ set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
+ set_gdbarch_call_dummy_words (gdbarch, call_dummy_32);
+#else
+ set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_at_entry_point);
+ set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
+ set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
+ set_gdbarch_call_dummy_length (gdbarch, 0);
+ set_gdbarch_call_dummy_words (gdbarch, call_dummy_nil);
+#endif
+ set_gdbarch_call_dummy_stack_adjust (gdbarch, 68);
+ set_gdbarch_call_dummy_start_offset (gdbarch, 0);
+ set_gdbarch_frame_args_skip (gdbarch, 68);
+ set_gdbarch_function_start_offset (gdbarch, 0);
+ set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_npc_regnum (gdbarch, SPARC32_NPC_REGNUM);
+ set_gdbarch_pc_regnum (gdbarch, SPARC32_PC_REGNUM);
+ set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
+ set_gdbarch_push_arguments (gdbarch, sparc32_push_arguments);
+ set_gdbarch_read_fp (gdbarch, generic_target_read_fp);
+ set_gdbarch_read_sp (gdbarch, generic_target_read_sp);
+
+ set_gdbarch_register_byte (gdbarch, sparc32_register_byte);
+ set_gdbarch_register_raw_size (gdbarch, sparc32_register_size);
+ set_gdbarch_register_size (gdbarch, 4);
+ set_gdbarch_register_virtual_size (gdbarch, sparc32_register_size);
+ set_gdbarch_register_virtual_type (gdbarch,
+ sparc32_register_virtual_type);
+#ifdef SPARC32_CALL_DUMMY_ON_STACK
+ set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof (call_dummy_32));
+#else
+ set_gdbarch_sizeof_call_dummy_words (gdbarch, 0);
+#endif
+ set_gdbarch_stack_align (gdbarch, sparc32_stack_align);
+ set_gdbarch_store_struct_return (gdbarch, sparc32_store_struct_return);
+ set_gdbarch_use_struct_convention (gdbarch,
+ generic_use_struct_convention);
+ set_gdbarch_write_sp (gdbarch, generic_target_write_sp);
+ tdep->y_regnum = SPARC32_Y_REGNUM;
+ tdep->fp_max_regnum = SPARC_FP0_REGNUM + 32;
+ tdep->intreg_size = 4;
+ tdep->reg_save_offset = 0x60;
+ tdep->call_dummy_call_offset = 0x24;
+ break;
+
+ case bfd_mach_sparc_v9:
+ case bfd_mach_sparc_v9a:
+ /* 64-bit machine types: */
+ default: /* Any new machine type is likely to be 64-bit. */
+
+#ifdef SPARC64_CALL_DUMMY_ON_STACK
+ set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_on_stack);
+ set_gdbarch_call_dummy_address (gdbarch, sparc_call_dummy_address);
+ set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 8 * 4);
+ set_gdbarch_call_dummy_length (gdbarch, 192);
+ set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
+ set_gdbarch_call_dummy_start_offset (gdbarch, 148);
+ set_gdbarch_call_dummy_words (gdbarch, call_dummy_64);
+#else
+ set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_at_entry_point);
+ set_gdbarch_call_dummy_address (gdbarch, entry_point_address);
+ set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 0);
+ set_gdbarch_call_dummy_length (gdbarch, 0);
+ set_gdbarch_call_dummy_start_offset (gdbarch, 0);
+ set_gdbarch_call_dummy_words (gdbarch, call_dummy_nil);
+#endif
+ set_gdbarch_call_dummy_stack_adjust (gdbarch, 128);
+ set_gdbarch_frame_args_skip (gdbarch, 136);
+ set_gdbarch_function_start_offset (gdbarch, 0);
+ set_gdbarch_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
+ set_gdbarch_npc_regnum (gdbarch, SPARC64_NPC_REGNUM);
+ set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM);
+ set_gdbarch_ptr_bit (gdbarch, 8 * TARGET_CHAR_BIT);
+ set_gdbarch_push_arguments (gdbarch, sparc64_push_arguments);
+ /* NOTE different for at_entry */
+ set_gdbarch_read_fp (gdbarch, sparc64_read_fp);
+ set_gdbarch_read_sp (gdbarch, sparc64_read_sp);
+ /* Some of the registers aren't 64 bits, but it's a lot simpler just
+ to assume they all are (since most of them are). */
+ set_gdbarch_register_byte (gdbarch, sparc64_register_byte);
+ set_gdbarch_register_raw_size (gdbarch, sparc64_register_size);
+ set_gdbarch_register_size (gdbarch, 8);
+ set_gdbarch_register_virtual_size (gdbarch, sparc64_register_size);
+ set_gdbarch_register_virtual_type (gdbarch,
+ sparc64_register_virtual_type);
+#ifdef SPARC64_CALL_DUMMY_ON_STACK
+ set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof (call_dummy_64));
+#else
+ set_gdbarch_sizeof_call_dummy_words (gdbarch, 0);
+#endif
+ set_gdbarch_stack_align (gdbarch, sparc64_stack_align);
+ set_gdbarch_store_struct_return (gdbarch, sparc64_store_struct_return);
+ set_gdbarch_use_struct_convention (gdbarch,
+ sparc64_use_struct_convention);
+ set_gdbarch_write_sp (gdbarch, sparc64_write_sp);
+ tdep->y_regnum = SPARC64_Y_REGNUM;
+ tdep->fp_max_regnum = SPARC_FP0_REGNUM + 48;
+ tdep->intreg_size = 8;
+ tdep->reg_save_offset = 0x90;
+ tdep->call_dummy_call_offset = 148 + 4 * 5;
+ break;
+ }
+
+ /*
+ * Settings that vary per-architecture:
+ */
+
+ switch (info.bfd_arch_info->mach)
+ {
+ case bfd_mach_sparc:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 72);
+ set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
+ set_gdbarch_register_name (gdbarch, sparc32_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
+ tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
+ tdep->fp_register_bytes = 32 * 4;
+ tdep->print_insn_mach = bfd_mach_sparc;
+ break;
+ case bfd_mach_sparc_sparclet:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparclet_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 32 + 32 + 8 + 8 + 8);
+ set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4 + 8*4);
+ set_gdbarch_register_name (gdbarch, sparclet_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparclet_store_return_value);
+ tdep->has_fpu = 0; /* (all but sparclet and sparclite) */
+ tdep->fp_register_bytes = 0;
+ tdep->print_insn_mach = bfd_mach_sparc_sparclet;
+ break;
+ case bfd_mach_sparc_sparclite:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 80);
+ set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
+ set_gdbarch_register_name (gdbarch, sparclite_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
+ tdep->has_fpu = 0; /* (all but sparclet and sparclite) */
+ tdep->fp_register_bytes = 0;
+ tdep->print_insn_mach = bfd_mach_sparc_sparclite;
+ break;
+ case bfd_mach_sparc_v8plus:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 72);
+ set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
+ set_gdbarch_register_name (gdbarch, sparc32_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
+ tdep->print_insn_mach = bfd_mach_sparc;
+ tdep->fp_register_bytes = 32 * 4;
+ tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
+ break;
+ case bfd_mach_sparc_v8plusa:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 72);
+ set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
+ set_gdbarch_register_name (gdbarch, sparc32_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
+ tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
+ tdep->fp_register_bytes = 32 * 4;
+ tdep->print_insn_mach = bfd_mach_sparc;
+ break;
+ case bfd_mach_sparc_sparclite_le:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 80);
+ set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
+ set_gdbarch_register_name (gdbarch, sparclite_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
+ tdep->has_fpu = 0; /* (all but sparclet and sparclite) */
+ tdep->fp_register_bytes = 0;
+ tdep->print_insn_mach = bfd_mach_sparc_sparclite;
+ break;
+ case bfd_mach_sparc_v9:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 125);
+ set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
+ set_gdbarch_register_name (gdbarch, sparc64_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
+ tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
+ tdep->fp_register_bytes = 64 * 4;
+ tdep->print_insn_mach = bfd_mach_sparc_v9a;
+ break;
+ case bfd_mach_sparc_v9a:
+ set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
+ set_gdbarch_num_regs (gdbarch, 125);
+ set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
+ set_gdbarch_register_name (gdbarch, sparc64_register_name);
+ set_gdbarch_deprecated_store_return_value (gdbarch, sparc_store_return_value);
+ tdep->has_fpu = 1; /* (all but sparclet and sparclite) */
+ tdep->fp_register_bytes = 64 * 4;
+ tdep->print_insn_mach = bfd_mach_sparc_v9a;
+ break;
+ }
+
+ /* Hook in OS ABI-specific overrides, if they have been registered. */
+ gdbarch_init_osabi (info, gdbarch);
+
+ return gdbarch;
+}
+
+static void
+sparc_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+
+ if (tdep == NULL)
+ return;
+
+ fprintf_unfiltered (file, "sparc_dump_tdep: has_fpu = %d\n",
+ tdep->has_fpu);
+ fprintf_unfiltered (file, "sparc_dump_tdep: fp_register_bytes = %d\n",
+ tdep->fp_register_bytes);
+ fprintf_unfiltered (file, "sparc_dump_tdep: y_regnum = %d\n",
+ tdep->y_regnum);
+ fprintf_unfiltered (file, "sparc_dump_tdep: fp_max_regnum = %d\n",
+ tdep->fp_max_regnum);
+ fprintf_unfiltered (file, "sparc_dump_tdep: intreg_size = %d\n",
+ tdep->intreg_size);
+ fprintf_unfiltered (file, "sparc_dump_tdep: reg_save_offset = %d\n",
+ tdep->reg_save_offset);
+ fprintf_unfiltered (file, "sparc_dump_tdep: call_dummy_call_offset = %d\n",
+ tdep->call_dummy_call_offset);
+ fprintf_unfiltered (file, "sparc_dump_tdep: print_insn_match = %d\n",
+ tdep->print_insn_mach);
+}
projects / deliverable / binutils-gdb.git / blobdiff