/* 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.
#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>
CORE_ADDR prologue_start, prologue_end;
int insn;
- fi->extra_info = (struct frame_extra_info *)
- frame_obstack_alloc (sizeof (struct frame_extra_info));
+ frame_extra_info_zalloc (fi, sizeof (struct frame_extra_info));
frame_saved_regs_zalloc (fi);
- fi->extra_info->bottom =
- (fi->next ?
- (fi->frame == fi->next->frame ? fi->next->extra_info->bottom :
- fi->next->frame) : read_sp ());
+ 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;
/* 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->extra_info->bottom = fi->next->extra_info->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));
+ deprecated_update_frame_base_hack (fi, extract_address (buf, REGISTER_RAW_SIZE (FP_REGNUM)));
- if (GDB_TARGET_IS_SPARC64 && (fi->frame & 1))
- fi->frame += 2047;
+ 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->extra_info->flat = 0;
- fi->extra_info->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
buf = alloca (MAX_REGISTER_RAW_SIZE);
/* We definitely have a flat frame now. */
- fi->extra_info->flat = 1;
+ get_frame_extra_info (fi)->flat = 1;
- fi->extra_info->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));
+ deprecated_update_frame_base_hack (fi, extract_address (buf, REGISTER_RAW_SIZE (I7_REGNUM)));
- if (GDB_TARGET_IS_SPARC64 && (fi->frame & 1))
- fi->frame += 2047;
+ 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->extra_info->fp_addr =
- fi->frame + fi->extra_info->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->extra_info->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->extra_info->pc_addr =
- fi->frame + fi->extra_info->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->extra_info->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)));
}
}
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
- sparc_init_prev_frame. */
- return (CORE_ADDR) 1;
+ value. If it really is zero, we detect it later in
+ sparc_init_prev_frame.
+
+ Note: kevinb/2003-02-18: The constant 1 used to be returned
+ here, but, after some recent changes to frame_chain_valid(),
+ this value is no longer suitable for causing frame_chain_valid()
+ to "not worry about the chain value." The constant ~0 (i.e,
+ 0xfff...) causes the failing test in frame_chain_valid() to
+ succeed thus preserving the "not worry" property. I had considered
+ using something like ``get_frame_base (frame) + 1''. However, I think
+ a constant value is better, because when debugging this problem,
+ I knew that something funny was going on as soon as I saw the
+ constant 1 being used as the frame chain elsewhere in GDB. */
+
+ return ~ (CORE_ADDR) 0;
}
CORE_ADDR
CORE_ADDR addr;
buf = alloca (MAX_REGISTER_RAW_SIZE);
- if (frame->signal_handler_caller)
+ if ((get_frame_type (frame) == SIGTRAMP_FRAME))
{
/* This is the signal trampoline frame.
Get the saved PC from the sigcontext structure. */
/* 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->extra_info->in_prologue ||
- (frame->next != NULL &&
- (frame->next->signal_handler_caller ||
- frame_in_dummy (frame->next)) &&
+ 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
frame, O7_REGNUM, (enum lval_type *) NULL);
return PC_ADJUST (extract_address (buf, SPARC_INTREG_SIZE));
}
- if (frame->extra_info->flat)
- addr = frame->extra_info->pc_addr;
+ if (get_frame_extra_info (frame)->flat)
+ addr = get_frame_extra_info (frame)->pc_addr;
else
- addr = frame->extra_info->bottom + FRAME_SAVED_I0 +
+ addr = get_frame_extra_info (frame)->bottom + FRAME_SAVED_I0 +
SPARC_INTREG_SIZE * (I7_REGNUM - I0_REGNUM);
if (addr == 0)
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->extra_info->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;
}
{
if (saved_regs && X_I (insn))
saved_regs[X_RD (insn)] =
- fi->frame + fi->extra_info->sp_offset + X_SIMM13 (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 (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.
/* 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;
{
/* FIXME MVS: wrong test for dummy frame at entry. */
- if (frame1->pc >= (frame1->extra_info->bottom ?
- frame1->extra_info->bottom : read_sp ())
- && frame1->pc <= FRAME_FP (frame1))
+ 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->extra_info->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->extra_info->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 (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);
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);
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->extra_info->flat)
+ else if (get_frame_extra_info (frame1)->flat)
{
if (regnum == RP_REGNUM)
- addr = frame1->extra_info->pc_addr;
+ addr = get_frame_extra_info (frame1)->pc_addr;
else if (regnum == I7_REGNUM)
- addr = frame1->extra_info->fp_addr;
+ addr = get_frame_extra_info (frame1)->fp_addr;
else
{
CORE_ADDR func_start;
regs = alloca (NUM_REGS * sizeof (CORE_ADDR));
memset (regs, 0, NUM_REGS * sizeof (CORE_ADDR));
- find_pc_partial_function (frame1->pc, NULL, &func_start, NULL);
+ find_pc_partial_function (get_frame_pc (frame1), NULL, &func_start, NULL);
examine_prologue (func_start, 0, frame1, regs);
addr = regs[regnum];
}
{
/* Normal frame. Local and In registers are saved on stack. */
if (regnum >= I0_REGNUM && regnum < I0_REGNUM + 8)
- addr = (frame1->prev->extra_info->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->extra_info->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;
if (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[7 * SPARC_INTREG_SIZE],
- REGISTER_RAW_SIZE (PSTATE_REGNUM));
+ 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 */
- read_register_bytes (REGISTER_BYTE (Y_REGNUM), ®ister_temp[0],
- REGISTER_RAW_SIZE (Y_REGNUM) * 8);
+ 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 (SPARC_HAS_FPU)
- read_register_bytes (REGISTER_BYTE (FP0_REGNUM),
- ®ister_temp[24 * SPARC_INTREG_SIZE],
- FP_REGISTER_BYTES);
+ 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);
}
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, NUM_REGS * sizeof (CORE_ADDR));
- if (fi->pc >= (fi->extra_info->bottom ?
- fi->extra_info->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++)
frame_addr + (regnum - Y_REGNUM) * SPARC_INTREG_SIZE
- DUMMY_STACK_REG_BUF_SIZE;
- frame_addr = fi->extra_info->bottom ?
- fi->extra_info->bottom : read_sp ();
+ frame_addr = (get_frame_extra_info (fi)->bottom
+ ? get_frame_extra_info (fi)->bottom
+ : read_sp ());
}
- else if (fi->extra_info->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[RP_REGNUM] = fi->extra_info->pc_addr;
- saved_regs_addr[I7_REGNUM] = fi->extra_info->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->extra_info->bottom ?
- fi->extra_info->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[regnum] =
(frame_addr + (regnum - L0_REGNUM) * SPARC_INTREG_SIZE
(frame_addr + (regnum - I0_REGNUM) * SPARC_INTREG_SIZE
+ FRAME_SAVED_I0);
}
- if (fi->next)
+ if (get_next_frame (fi))
{
- if (fi->extra_info->flat)
+ if (get_frame_extra_info (fi)->flat)
{
- saved_regs_addr[O7_REGNUM] = fi->extra_info->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->extra_info->bottom ?
- fi->next->extra_info->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[regnum] =
(next_next_frame_addr
}
/* Otherwise, whatever we would get from ptrace(GETREGS) is accurate */
/* FIXME -- should this adjust for the sparc64 offset? */
- saved_regs_addr[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
if (fsr[FP0_REGNUM])
{
read_memory (fsr[FP0_REGNUM], raw_buffer, FP_REGISTER_BYTES);
- write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
- raw_buffer, FP_REGISTER_BYTES);
+ deprecated_write_register_bytes (REGISTER_BYTE (FP0_REGNUM),
+ raw_buffer, FP_REGISTER_BYTES);
}
if (!(GDB_TARGET_IS_SPARC64))
{
if (fsr[FPS_REGNUM])
{
read_memory (fsr[FPS_REGNUM], raw_buffer, SPARC_INTREG_SIZE);
- write_register_gen (FPS_REGNUM, raw_buffer);
+ deprecated_write_register_gen (FPS_REGNUM, raw_buffer);
}
if (fsr[CPS_REGNUM])
{
read_memory (fsr[CPS_REGNUM], raw_buffer, SPARC_INTREG_SIZE);
- write_register_gen (CPS_REGNUM, raw_buffer);
+ deprecated_write_register_gen (CPS_REGNUM, raw_buffer);
}
}
}
if (fsr[G1_REGNUM])
{
read_memory (fsr[G1_REGNUM], raw_buffer, 7 * SPARC_INTREG_SIZE);
- write_register_bytes (REGISTER_BYTE (G1_REGNUM), raw_buffer,
- 7 * SPARC_INTREG_SIZE);
+ deprecated_write_register_bytes (REGISTER_BYTE (G1_REGNUM), raw_buffer,
+ 7 * SPARC_INTREG_SIZE);
}
- if (frame->extra_info->flat)
+ if (get_frame_extra_info (frame)->flat)
{
/* Each register might or might not have been saved, need to test
individually. */
read_memory_integer (fsr[O0_REGNUM + 7],
SPARC_INTREG_SIZE));
- write_sp (frame->frame);
+ write_sp (get_frame_base (frame));
}
else if (fsr[I0_REGNUM])
{
char *reg_temp;
- reg_temp = alloca (REGISTER_BYTES);
+ reg_temp = alloca (SPARC_INTREG_SIZE * 16);
read_memory (fsr[I0_REGNUM], raw_buffer, 8 * SPARC_INTREG_SIZE);
/* 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);
}
if (!(GDB_TARGET_IS_SPARC64))
read_memory_integer (fsr[NPC_REGNUM],
REGISTER_RAW_SIZE (NPC_REGNUM)));
}
- else if (frame->extra_info->flat)
+ else if (get_frame_extra_info (frame)->flat)
{
- if (frame->extra_info->pc_addr)
+ if (get_frame_extra_info (frame)->pc_addr)
pc = PC_ADJUST ((CORE_ADDR)
- read_memory_integer (frame->extra_info->pc_addr,
+ read_memory_integer (get_frame_extra_info (frame)->pc_addr,
REGISTER_RAW_SIZE (PC_REGNUM)));
else
{
for (regi = 0; regi <= R_I7; regi++)
if ((regno == -1) || (regno == regi))
- read_register_gen (regi, (char *) (regp + regi) + offset);
+ deprecated_read_register_gen (regi, (char *) (regp + regi) + offset);
if ((regno == -1) || (regno == PC_REGNUM))
- read_register_gen (PC_REGNUM, (char *) (regp + R_PC) + offset);
+ deprecated_read_register_gen (PC_REGNUM, (char *) (regp + R_PC) + offset);
if ((regno == -1) || (regno == NPC_REGNUM))
- read_register_gen (NPC_REGNUM, (char *) (regp + R_nPC) + offset);
+ deprecated_read_register_gen (NPC_REGNUM, (char *) (regp + R_nPC) + offset);
if ((regno == -1) || (regno == Y_REGNUM))
- read_register_gen (Y_REGNUM, (char *) (regp + R_Y) + offset);
+ deprecated_read_register_gen (Y_REGNUM, (char *) (regp + R_Y) + offset);
if (GDB_TARGET_IS_SPARC64)
{
#ifdef R_CCR
if (regno == -1 || regno == CCR_REGNUM)
- read_register_gen (CCR_REGNUM, ((char *) (regp + R_CCR)) + offset);
+ deprecated_read_register_gen (CCR_REGNUM, ((char *) (regp + R_CCR)) + offset);
#endif
#ifdef R_FPRS
if (regno == -1 || regno == FPRS_REGNUM)
- read_register_gen (FPRS_REGNUM, ((char *) (regp + R_FPRS)) + offset);
+ deprecated_read_register_gen (FPRS_REGNUM, ((char *) (regp + R_FPRS)) + offset);
#endif
#ifdef R_ASI
if (regno == -1 || regno == ASI_REGNUM)
- read_register_gen (ASI_REGNUM, ((char *) (regp + R_ASI)) + offset);
+ deprecated_read_register_gen (ASI_REGNUM, ((char *) (regp + R_ASI)) + offset);
#endif
}
else /* sparc32 */
{
#ifdef R_PS
if (regno == -1 || regno == PS_REGNUM)
- read_register_gen (PS_REGNUM, ((char *) (regp + R_PS)) + offset);
+ 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.
#if defined (R_WIM)
if (regno == -1 || regno == WIM_REGNUM)
- read_register_gen (WIM_REGNUM, ((char *) (regp + R_WIM)) + offset);
+ deprecated_read_register_gen (WIM_REGNUM, ((char *) (regp + R_WIM)) + offset);
#else
if (regno == -1 || regno == WIM_REGNUM)
- read_register_gen (WIM_REGNUM, NULL);
+ deprecated_read_register_gen (WIM_REGNUM, NULL);
#endif
#if defined (R_TBR)
if (regno == -1 || regno == TBR_REGNUM)
- read_register_gen (TBR_REGNUM, ((char *) (regp + R_TBR)) + offset);
+ deprecated_read_register_gen (TBR_REGNUM, ((char *) (regp + R_TBR)) + offset);
#else
if (regno == -1 || regno == TBR_REGNUM)
- read_register_gen (TBR_REGNUM, NULL);
+ deprecated_read_register_gen (TBR_REGNUM, NULL);
#endif
}
}
{
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 (!(GDB_TARGET_IS_SPARC64)) /* FIXME: does Sparc64 have this register? */
if ((regno == -1) || (regno == FPS_REGNUM))
{
- from = (char *)®isters[REGISTER_BYTE (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
}
}
-/* 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
+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);
#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");
+ }
+}
+
+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 (bfd_vma memaddr, disassemble_info *info)
args are also passed in registers o0 - o5. */
CORE_ADDR
-sparc32_push_arguments (int nargs, value_ptr *args, CORE_ADDR sp,
+sparc32_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_addr)
{
int i, j, oregnum;
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))
for (j = 0;
j < m_arg->len && oregnum < 6;
j += SPARC_INTREG_SIZE, oregnum++)
- write_register_gen (O0_REGNUM + oregnum, m_arg->contents + j);
+ deprecated_write_register_gen (O0_REGNUM + oregnum, m_arg->contents + j);
}
return sp;
memcpy (valbuf,
®buf[O0_REGNUM * regsize +
(typelen >= regsize
- || TARGET_BYTE_ORDER == LITTLE_ENDIAN ? 0
+ || TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE ? 0
: regsize - typelen)],
typelen);
}
int regno;
char *buffer;
- buffer = alloca(MAX_REGISTER_RAW_SIZE);
+ 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 */
memset (buffer, 0, REGISTER_RAW_SIZE (regno));
memcpy (buffer + REGISTER_RAW_SIZE (regno) - TYPE_LENGTH (type), valbuf,
TYPE_LENGTH (type));
- write_register_gen (regno, buffer);
+ 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. */
- write_register_bytes (REGISTER_BYTE (O0_REGNUM), valbuf,
- TYPE_LENGTH (type));
+ deprecated_write_register_bytes (REGISTER_BYTE (O0_REGNUM), valbuf,
+ TYPE_LENGTH (type));
}
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;
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 (void)
{
/* Hook us into the gdbarch mechanism. */
- register_gdbarch_init (bfd_arch_sparc, sparc_gdbarch_init);
+ 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 */
write_register (SP_REGNUM, val);
}
-void
-sparc64_write_fp (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),
int and float, we will waste every other register of both types. */
CORE_ADDR
-sparc64_push_arguments (int nargs, value_ptr *args, CORE_ADDR sp,
+sparc64_push_arguments (int nargs, struct value **args, CORE_ADDR sp,
int struct_return, CORE_ADDR struct_retaddr)
{
int i, j, register_counter = 0;
for (i = nargs - 1; i >= 0; i--)
{
int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[i])));
- value_ptr copyarg = args[i];
+ struct value *copyarg = args[i];
int copylen = len;
if (copylen < SPARC_INTREG_SIZE)
for (i = 0; i < nargs; i++)
{
int len = TYPE_LENGTH (check_typedef (VALUE_TYPE (args[i])));
- value_ptr copyarg = args[i];
+ struct value *copyarg = args[i];
enum type_code typecode = TYPE_CODE (VALUE_TYPE (args[i]));
int copylen = len;
fpreg = FP0_REGNUM + 2 * register_counter;
register_counter += 2;
break;
+ default:
+ internal_error (__FILE__, __LINE__, "bad switch");
}
- write_register_bytes (REGISTER_BYTE (fpreg),
- VALUE_CONTENTS (args[i]),
- len);
+ deprecated_write_register_bytes (REGISTER_BYTE (fpreg),
+ VALUE_CONTENTS (args[i]),
+ len);
}
}
else /* all other args go into the first six 'o' registers */
{
int oreg = O0_REGNUM + register_counter;
- write_register_gen (oreg, VALUE_CONTENTS (copyarg) + j);
+ deprecated_write_register_gen (oreg, VALUE_CONTENTS (copyarg) + j);
register_counter += 1;
}
}
extern void
sparc_print_extra_frame_info (struct frame_info *fi)
{
- if (fi && fi->extra_info && fi->extra_info->flat)
+ 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 (fi->extra_info->pc_addr),
- paddr_nz (fi->extra_info->fp_addr));
+ paddr_nz (get_frame_extra_info (fi)->pc_addr),
+ paddr_nz (get_frame_extra_info (fi)->fp_addr));
}
/* MULTI_ARCH support */
-static char *
+static const char *
sparc32_register_name (int regno)
{
static char *register_names[] =
return register_names[regno];
}
-static char *
+static const char *
sparc64_register_name (int regno)
{
static char *register_names[] =
return register_names[regno];
}
-static char *
+static const char *
sparclite_register_name (int regno)
{
static char *register_names[] =
return register_names[regno];
}
-static char *
+static const char *
sparclet_register_name (int regno)
{
static char *register_names[] =
return 64 * 8 + (regno - 80) * 8;
}
-/* Advance PC across any function entry prologue instructions to reach
- some "real" code. SKIP_PROLOGUE_FRAMELESS_P advances the PC past
- some of the prologue, but stops as soon as it knows that the
- function has a frame. Its result is equal to its input PC if the
- function is frameless, unequal otherwise. */
-
-static CORE_ADDR
-sparc_gdbarch_skip_prologue (CORE_ADDR ip)
-{
- return examine_prologue (ip, 0, NULL, NULL);
-}
-
/* 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
sparc_fix_call_dummy (dummy, pc, fun, type, gcc_p);
}
-/* Coerce float to double: a no-op. */
-
-static int
-sparc_coerce_float_to_double (struct type *formal, struct type *actual)
-{
- return 1;
-}
-
/* CALL_DUMMY_ADDRESS: fetch the breakpoint address for a call dummy. */
static CORE_ADDR
};
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_architecture != bfd_arch_sparc)
+ 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. */
/* 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_coerce_float_to_double (gdbarch,
- sparc_coerce_float_to_double);
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_extract_struct_value_address (gdbarch,
- sparc_extract_struct_value_address);
+ 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_args_address (gdbarch, default_frame_address);
set_gdbarch_frame_chain (gdbarch, sparc_frame_chain);
set_gdbarch_frame_init_saved_regs (gdbarch, sparc_frame_init_saved_regs);
- set_gdbarch_frame_locals_address (gdbarch, default_frame_address);
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_ieee_float (gdbarch, 1);
- set_gdbarch_init_extra_frame_info (gdbarch, sparc_init_extra_frame_info);
+ set_gdbarch_deprecated_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_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_deprecated_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,
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_gdbarch_skip_prologue);
+ set_gdbarch_skip_prologue (gdbarch, sparc_skip_prologue);
set_gdbarch_sp_regnum (gdbarch, SPARC_SP_REGNUM);
- set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
+ set_gdbarch_deprecated_use_generic_dummy_frames (gdbarch, 0);
set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
/*
/* 32-bit machine types: */
#ifdef SPARC32_CALL_DUMMY_ON_STACK
- set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_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_pc_in_call_dummy (gdbarch, pc_in_call_dummy_at_entry_point);
+ 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_location (gdbarch, AT_ENTRY_POINT);
set_gdbarch_call_dummy_words (gdbarch, call_dummy_nil);
#endif
set_gdbarch_call_dummy_stack_adjust (gdbarch, 68);
set_gdbarch_store_struct_return (gdbarch, sparc32_store_struct_return);
set_gdbarch_use_struct_convention (gdbarch,
generic_use_struct_convention);
- set_gdbarch_write_fp (gdbarch, generic_target_write_fp);
set_gdbarch_write_sp (gdbarch, generic_target_write_sp);
tdep->y_regnum = SPARC32_Y_REGNUM;
tdep->fp_max_regnum = SPARC_FP0_REGNUM + 32;
default: /* Any new machine type is likely to be 64-bit. */
#ifdef SPARC64_CALL_DUMMY_ON_STACK
- set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_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_start_offset (gdbarch, 148);
set_gdbarch_call_dummy_words (gdbarch, call_dummy_64);
#else
- set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_at_entry_point);
+ 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_location (gdbarch, AT_ENTRY_POINT);
set_gdbarch_call_dummy_start_offset (gdbarch, 0);
set_gdbarch_call_dummy_words (gdbarch, call_dummy_nil);
#endif
set_gdbarch_store_struct_return (gdbarch, sparc64_store_struct_return);
set_gdbarch_use_struct_convention (gdbarch,
sparc64_use_struct_convention);
- set_gdbarch_write_fp (gdbarch, sparc64_write_fp);
set_gdbarch_write_sp (gdbarch, sparc64_write_sp);
tdep->y_regnum = SPARC64_Y_REGNUM;
tdep->fp_max_regnum = SPARC_FP0_REGNUM + 48;
switch (info.bfd_arch_info->mach)
{
case bfd_mach_sparc:
- set_gdbarch_extract_return_value (gdbarch, sparc32_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparc_store_return_value);
+ 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_extract_return_value (gdbarch,
- sparclet_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparclet_store_return_value);
+ 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_extract_return_value (gdbarch, sparc32_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparc_store_return_value);
+ 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_extract_return_value (gdbarch, sparc32_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparc_store_return_value);
+ 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_extract_return_value (gdbarch, sparc32_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparc_store_return_value);
+ 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_extract_return_value (gdbarch, sparc32_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparc_store_return_value);
+ 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_extract_return_value (gdbarch, sparc64_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparc_store_return_value);
+ 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_extract_return_value (gdbarch, sparc64_extract_return_value);
- set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
+ 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_store_return_value (gdbarch, sparc_store_return_value);
+ 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