/* Target-dependent code for the NEC V850 for GDB, the GNU debugger.
Copyright 1996, Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "frame.h"
char **v850_register_names = v850_generic_reg_names;
struct
+ {
+ char **regnames;
+ int mach;
+ }
+v850_processor_type_table[] =
{
- char **regnames;
- int mach;
-} v850_processor_type_table[] =
-{
- { v850_generic_reg_names, bfd_mach_v850 },
- { v850e_reg_names, bfd_mach_v850e },
- { v850e_reg_names, bfd_mach_v850ea },
- { NULL, 0 }
+ {
+ v850_generic_reg_names, bfd_mach_v850
+ }
+ ,
+ {
+ v850e_reg_names, bfd_mach_v850e
+ }
+ ,
+ {
+ v850e_reg_names, bfd_mach_v850ea
+ }
+ ,
+ {
+ NULL, 0
+ }
};
/* Info gleaned from scanning a function's prologue. */
struct pifsr /* Info about one saved reg */
-{
- int framereg; /* Frame reg (SP or FP) */
- int offset; /* Offset from framereg */
- int cur_frameoffset; /* Current frameoffset */
- int reg; /* Saved register number */
-};
+ {
+ int framereg; /* Frame reg (SP or FP) */
+ int offset; /* Offset from framereg */
+ int cur_frameoffset; /* Current frameoffset */
+ int reg; /* Saved register number */
+ };
struct prologue_info
-{
- int framereg;
- int frameoffset;
- int start_function;
- struct pifsr *pifsrs;
-};
+ {
+ int framereg;
+ int frameoffset;
+ int start_function;
+ struct pifsr *pifsrs;
+ };
-static CORE_ADDR v850_scan_prologue PARAMS ((CORE_ADDR pc,
- struct prologue_info *fs));
+static CORE_ADDR v850_scan_prologue PARAMS ((CORE_ADDR pc,
+ struct prologue_info * fs));
/* Should call_function allocate stack space for a struct return? */
{
return (TYPE_NFIELDS (type) > 1 || TYPE_LENGTH (type) > 4);
}
-
\f
+
/* Structure for mapping bits in register lists to register numbers. */
-struct reg_list
+struct reg_list
{
long mask;
int regno;
/* Helper function for v850_scan_prologue to handle prepare instruction. */
static void
-handle_prepare (int insn, int insn2, CORE_ADDR *current_pc_ptr,
+handle_prepare (int insn, int insn2, CORE_ADDR * current_pc_ptr,
struct prologue_info *pi, struct pifsr **pifsr_ptr)
{
long next = insn2 & 0xffff;
long list12 = ((insn & 1) << 16) + (next & 0xffe0);
long offset = (insn & 0x3e) << 1;
- static struct reg_list reg_table [] =
+ static struct reg_list reg_table[] =
{
- { 0x00800, 20 }, /* r20 */
- { 0x00400, 21 }, /* r21 */
- { 0x00200, 22 }, /* r22 */
- { 0x00100, 23 }, /* r23 */
- { 0x08000, 24 }, /* r24 */
- { 0x04000, 25 }, /* r25 */
- { 0x02000, 26 }, /* r26 */
- { 0x01000, 27 }, /* r27 */
- { 0x00080, 28 }, /* r28 */
- { 0x00040, 29 }, /* r29 */
- { 0x10000, 30 }, /* ep */
- { 0x00020, 31 }, /* lp */
- { 0, 0 } /* end of table */
+ {0x00800, 20}, /* r20 */
+ {0x00400, 21}, /* r21 */
+ {0x00200, 22}, /* r22 */
+ {0x00100, 23}, /* r23 */
+ {0x08000, 24}, /* r24 */
+ {0x04000, 25}, /* r25 */
+ {0x02000, 26}, /* r26 */
+ {0x01000, 27}, /* r27 */
+ {0x00080, 28}, /* r28 */
+ {0x00040, 29}, /* r29 */
+ {0x10000, 30}, /* ep */
+ {0x00020, 31}, /* lp */
+ {0, 0} /* end of table */
};
int i;
- if ((next & 0x1f) == 0x0b) /* skip imm16 argument */
+ if ((next & 0x1f) == 0x0b) /* skip imm16 argument */
current_pc += 2;
else if ((next & 0x1f) == 0x13) /* skip imm16 argument */
current_pc += 2;
pifsr->reg = reg;
pifsr->offset = offset;
pifsr->cur_frameoffset = pi->frameoffset;
- #ifdef DEBUG
+#ifdef DEBUG
printf_filtered ("\tSaved register r%d, offset %d", reg, pifsr->offset);
- #endif
+#endif
pifsr++;
}
}
static void
handle_pushm (int insn, int insn2, struct prologue_info *pi,
- struct pifsr **pifsr_ptr)
+ struct pifsr **pifsr_ptr)
{
struct pifsr *pifsr = *pifsr_ptr;
long list12 = ((insn & 0x0f) << 16) + (insn2 & 0xfff0);
long offset = 0;
- static struct reg_list pushml_reg_table [] =
+ static struct reg_list pushml_reg_table[] =
{
- { 0x80000, PS_REGNUM }, /* PSW */
- { 0x40000, 1 }, /* r1 */
- { 0x20000, 2 }, /* r2 */
- { 0x10000, 3 }, /* r3 */
- { 0x00800, 4 }, /* r4 */
- { 0x00400, 5 }, /* r5 */
- { 0x00200, 6 }, /* r6 */
- { 0x00100, 7 }, /* r7 */
- { 0x08000, 8 }, /* r8 */
- { 0x04000, 9 }, /* r9 */
- { 0x02000, 10 }, /* r10 */
- { 0x01000, 11 }, /* r11 */
- { 0x00080, 12 }, /* r12 */
- { 0x00040, 13 }, /* r13 */
- { 0x00020, 14 }, /* r14 */
- { 0x00010, 15 }, /* r15 */
- { 0, 0 } /* end of table */
+ {0x80000, PS_REGNUM}, /* PSW */
+ {0x40000, 1}, /* r1 */
+ {0x20000, 2}, /* r2 */
+ {0x10000, 3}, /* r3 */
+ {0x00800, 4}, /* r4 */
+ {0x00400, 5}, /* r5 */
+ {0x00200, 6}, /* r6 */
+ {0x00100, 7}, /* r7 */
+ {0x08000, 8}, /* r8 */
+ {0x04000, 9}, /* r9 */
+ {0x02000, 10}, /* r10 */
+ {0x01000, 11}, /* r11 */
+ {0x00080, 12}, /* r12 */
+ {0x00040, 13}, /* r13 */
+ {0x00020, 14}, /* r14 */
+ {0x00010, 15}, /* r15 */
+ {0, 0} /* end of table */
};
- static struct reg_list pushmh_reg_table [] =
+ static struct reg_list pushmh_reg_table[] =
{
- { 0x80000, 16 }, /* r16 */
- { 0x40000, 17 }, /* r17 */
- { 0x20000, 18 }, /* r18 */
- { 0x10000, 19 }, /* r19 */
- { 0x00800, 20 }, /* r20 */
- { 0x00400, 21 }, /* r21 */
- { 0x00200, 22 }, /* r22 */
- { 0x00100, 23 }, /* r23 */
- { 0x08000, 24 }, /* r24 */
- { 0x04000, 25 }, /* r25 */
- { 0x02000, 26 }, /* r26 */
- { 0x01000, 27 }, /* r27 */
- { 0x00080, 28 }, /* r28 */
- { 0x00040, 29 }, /* r29 */
- { 0x00010, 30 }, /* r30 */
- { 0x00020, 31 }, /* r31 */
- { 0, 0 } /* end of table */
+ {0x80000, 16}, /* r16 */
+ {0x40000, 17}, /* r17 */
+ {0x20000, 18}, /* r18 */
+ {0x10000, 19}, /* r19 */
+ {0x00800, 20}, /* r20 */
+ {0x00400, 21}, /* r21 */
+ {0x00200, 22}, /* r22 */
+ {0x00100, 23}, /* r23 */
+ {0x08000, 24}, /* r24 */
+ {0x04000, 25}, /* r25 */
+ {0x02000, 26}, /* r26 */
+ {0x01000, 27}, /* r27 */
+ {0x00080, 28}, /* r28 */
+ {0x00040, 29}, /* r29 */
+ {0x00010, 30}, /* r30 */
+ {0x00020, 31}, /* r31 */
+ {0, 0} /* end of table */
};
struct reg_list *reg_table;
int i;
pifsr->reg = reg;
pifsr->offset = offset;
pifsr->cur_frameoffset = pi->frameoffset;
- #ifdef DEBUG
+#ifdef DEBUG
printf_filtered ("\tSaved register r%d, offset %d", reg, pifsr->offset);
- #endif
+#endif
pifsr++;
}
}
/* Set result parameters. */
*pifsr_ptr = pifsr;
}
+\f
-\f
/* Function: scan_prologue
Scan the prologue of the function that contains PC, and record what
we find in PI. PI->fsr must be zeroed by the called. Returns the
/* Now, search the prologue looking for instructions that setup fp, save
rp, adjust sp and such. We also record the frame offset of any saved
- registers. */
+ registers. */
pi->frameoffset = 0;
pi->framereg = SP_REGNUM;
#ifdef DEBUG
printf_filtered ("Current_pc = 0x%.8lx, prologue_end = 0x%.8lx\n",
- (long)func_addr, (long)prologue_end);
+ (long) func_addr, (long) prologue_end);
#endif
- for (current_pc = func_addr; current_pc < prologue_end; )
+ for (current_pc = func_addr; current_pc < prologue_end;)
{
int insn, insn2;
#ifdef DEBUG
- printf_filtered ("0x%.8lx ", (long)current_pc);
+ printf_filtered ("0x%.8lx ", (long) current_pc);
(*tm_print_insn) (current_pc, &tm_print_insn_info);
#endif
insn = read_memory_unsigned_integer (current_pc, 2);
current_pc += 2;
- if ((insn & 0x0780) >= 0x0600) /* Four byte instruction? */
+ if ((insn & 0x0780) >= 0x0600) /* Four byte instruction? */
{
insn2 = read_memory_unsigned_integer (current_pc, 2);
current_pc += 2;
if ((insn & 0xffc0) == ((10 << 11) | 0x0780) && !regsave_func_p)
{ /* jarl <func>,10 */
- long low_disp = insn2 & ~ (long) 1;
+ long low_disp = insn2 & ~(long) 1;
long disp = (((((insn & 0x3f) << 16) + low_disp)
- & ~ (long) 1) ^ 0x00200000) - 0x00200000;
+ & ~(long) 1) ^ 0x00200000) - 0x00200000;
save_pc = current_pc;
save_end = prologue_end;
current_pc += disp - 4;
prologue_end = (current_pc
+ (2 * 3) /* moves to/from ep */
- + 4 /* addi <const>,sp,sp */
- + 2 /* jmp [r10] */
+ + 4 /* addi <const>,sp,sp */
+ + 2 /* jmp [r10] */
+ (2 * 12) /* sst.w to save r2, r20-r29, r31 */
+ 20); /* slop area */
#ifdef DEBUG
printf_filtered ("\tfound jarl <func>,r10, disp = %ld, low_disp = %ld, new pc = 0x%.8lx\n",
- disp, low_disp, (long)current_pc + 2);
+ disp, low_disp, (long) current_pc + 2);
#endif
continue;
}
current_pc = ctbp + (read_memory_unsigned_integer (adr, 2) & 0xffff);
prologue_end = (current_pc
+ (2 * 3) /* prepare list2,imm5,sp/imm */
- + 4 /* ctret */
+ + 4 /* ctret */
+ 20); /* slop area */
#ifdef DEBUG
printf_filtered ("\tfound callt, ctbp = 0x%.8lx, adr = %.8lx, new pc = 0x%.8lx\n",
- ctbp, adr, (long)current_pc);
+ ctbp, adr, (long) current_pc);
#endif
continue;
}
#ifdef DEBUG
printf_filtered ("\n");
#endif
- break; /* Ran into end of prologue */
+ break; /* Ran into end of prologue */
}
else if ((insn & 0xffe0) == ((SP_REGNUM << 11) | 0x0240)) /* add <imm>,sp */
r12_tmp = insn2 << 16;
else if (insn == ((R12_REGNUM << 11) | 0x0620 | R12_REGNUM)) /* movea lo(const),r12,r12 */
r12_tmp += insn2;
- else if (insn == ((SP_REGNUM << 11) | 0x01c0 | R12_REGNUM) && r12_tmp) /* add r12,sp */
+ else if (insn == ((SP_REGNUM << 11) | 0x01c0 | R12_REGNUM) && r12_tmp) /* add r12,sp */
pi->frameoffset = r12_tmp;
else if (insn == ((EP_REGNUM << 11) | 0x0000 | SP_REGNUM)) /* mov sp,ep */
ep_used = 1;
else if (insn == ((EP_REGNUM << 11) | 0x0000 | R1_REGNUM)) /* mov r1,ep */
ep_used = 0;
- else if (((insn & 0x07ff) == (0x0760 | SP_REGNUM) /* st.w <reg>,<offset>[sp] */
+ else if (((insn & 0x07ff) == (0x0760 | SP_REGNUM) /* st.w <reg>,<offset>[sp] */
|| (fp_used
&& (insn & 0x07ff) == (0x0760 | FP_RAW_REGNUM))) /* st.w <reg>,<offset>[fp] */
&& pifsr
&& (((reg = (insn >> 11) & 0x1f) >= SAVE1_START_REGNUM && reg <= SAVE1_END_REGNUM)
|| (reg >= SAVE2_START_REGNUM && reg <= SAVE2_END_REGNUM)
- || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM)))
+ || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM)))
{
pifsr->reg = reg;
pifsr->offset = insn2 & ~1;
pifsr++;
}
- else if (ep_used /* sst.w <reg>,<offset>[ep] */
+ else if (ep_used /* sst.w <reg>,<offset>[ep] */
&& ((insn & 0x0781) == 0x0501)
&& pifsr
&& (((reg = (insn >> 11) & 0x1f) >= SAVE1_START_REGNUM && reg <= SAVE1_END_REGNUM)
|| (reg >= SAVE2_START_REGNUM && reg <= SAVE2_END_REGNUM)
- || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM)))
+ || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM)))
{
pifsr->reg = reg;
pifsr->offset = (insn & 0x007e) << 1;
#ifdef DEBUG
printf_filtered ("Saved register r%d, offset = %d, framereg = r%d\n",
- pifsr_tmp->reg, pifsr_tmp->offset, pifsr_tmp->framereg);
+ pifsr_tmp->reg, pifsr_tmp->offset, pifsr_tmp->framereg);
#endif
}
/* The call dummy doesn't save any registers on the stack, so we can return
now. */
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
- return;
+ return;
pi.pifsrs = pifsrs;
callers_pc = FRAME_SAVED_PC (fi);
/* If caller is a call-dummy, then our FP bears no relation to his FP! */
fp = v850_find_callers_reg (fi, FP_RAW_REGNUM);
- if (PC_IN_CALL_DUMMY(callers_pc, fp, fp))
- return fp; /* caller is call-dummy: return oldest value of FP */
+ if (PC_IN_CALL_DUMMY (callers_pc, fp, fp))
+ return fp; /* caller is call-dummy: return oldest value of FP */
/* Caller is NOT a call-dummy, so everything else should just work.
Even if THIS frame is a call-dummy! */
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
return generic_read_register_dummy (fi->pc, fi->frame, regnum);
else if (fi->fsr.regs[regnum] != 0)
- return read_memory_unsigned_integer (fi->fsr.regs[regnum],
- REGISTER_RAW_SIZE(regnum));
+ return read_memory_unsigned_integer (fi->fsr.regs[regnum],
+ REGISTER_RAW_SIZE (regnum));
return read_register (regnum);
}
{
int regnum;
- if (PC_IN_CALL_DUMMY(frame->pc, frame->frame, frame->frame))
+ if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
generic_pop_dummy_frame ();
else
{
for (regnum = 0; regnum < NUM_REGS; regnum++)
if (frame->fsr.regs[regnum] != 0)
write_register (regnum,
- read_memory_unsigned_integer (frame->fsr.regs[regnum],
- REGISTER_RAW_SIZE(regnum)));
+ read_memory_unsigned_integer (frame->fsr.regs[regnum],
+ REGISTER_RAW_SIZE (regnum)));
write_register (SP_REGNUM, FRAME_FP (frame));
}
in as a secret first argument (always in R6).
Stack space for the args has NOT been allocated: that job is up to us.
- */
+ */
CORE_ADDR
v850_push_arguments (nargs, args, sp, struct_return, struct_addr)
/* Now make space on the stack for the args. */
for (argnum = 0; argnum < nargs; argnum++)
- len += ((TYPE_LENGTH(VALUE_TYPE(args[argnum])) + 3) & ~3);
- sp -= len; /* possibly over-allocating, but it works... */
- /* (you might think we could allocate 16 bytes */
- /* less, but the ABI seems to use it all! ) */
+ len += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3);
+ sp -= len; /* possibly over-allocating, but it works... */
+ /* (you might think we could allocate 16 bytes */
+ /* less, but the ABI seems to use it all! ) */
argreg = ARG0_REGNUM;
/* the struct_return pointer occupies the first parameter-passing reg */
if (struct_return)
- write_register (argreg++, struct_addr);
+ write_register (argreg++, struct_addr);
stack_offset = 16;
/* The offset onto the stack at which we will start copying parameters
{
int len;
char *val;
- char valbuf[REGISTER_RAW_SIZE(ARG0_REGNUM)];
+ char valbuf[REGISTER_RAW_SIZE (ARG0_REGNUM)];
if (TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_STRUCT
&& TYPE_LENGTH (VALUE_TYPE (*args)) > 8)
else
{
len = TYPE_LENGTH (VALUE_TYPE (*args));
- val = (char *)VALUE_CONTENTS (*args);
+ val = (char *) VALUE_CONTENTS (*args);
}
while (len > 0)
- if (argreg <= ARGLAST_REGNUM)
+ if (argreg <= ARGLAST_REGNUM)
{
CORE_ADDR regval;
/* Function: push_return_address (pc)
Set up the return address for the inferior function call.
Needed for targets where we don't actually execute a JSR/BSR instruction */
-
+
CORE_ADDR
v850_push_return_address (pc, sp)
CORE_ADDR pc;
write_register (RP_REGNUM, CALL_DUMMY_ADDRESS ());
return sp;
}
-
+
/* Function: frame_saved_pc
Find the caller of this frame. We do this by seeing if RP_REGNUM
is saved in the stack anywhere, otherwise we get it from the
v850_frame_saved_pc (fi)
struct frame_info *fi;
{
- if (PC_IN_CALL_DUMMY(fi->pc, fi->frame, fi->frame))
- return generic_read_register_dummy(fi->pc, fi->frame, PC_REGNUM);
+ if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
+ return generic_read_register_dummy (fi->pc, fi->frame, PC_REGNUM);
else
return v850_find_callers_reg (fi, RP_REGNUM);
}
/* Function: fix_call_dummy
Pokes the callee function's address into the CALL_DUMMY assembly stub.
Assumes that the CALL_DUMMY looks like this:
- jarl <offset24>, r31
- trap
- */
+ jarl <offset24>, r31
+ trap
+ */
int
v850_fix_call_dummy (dummy, sp, fun, nargs, args, type, gcc_p)
offset24 &= 0x3fffff;
offset24 |= 0xff800000; /* jarl <offset24>, r31 */
- store_unsigned_integer ((unsigned int *)&dummy[2], 2, offset24 & 0xffff);
- store_unsigned_integer ((unsigned int *)&dummy[0], 2, offset24 >> 16);
+ store_unsigned_integer ((unsigned int *) &dummy[2], 2, offset24 & 0xffff);
+ store_unsigned_integer ((unsigned int *) &dummy[0], 2, offset24 >> 16);
return 0;
}
projects / thirdparty / binutils-gdb.git / blobdiff