/* Target-dependent code for the IQ2000 architecture, for GDB, the GNU
Debugger.
- Copyright (C) 2000, 2004, 2005, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2014 Free Software Foundation, Inc.
Contributed by Red Hat.
#include "gdbtypes.h"
#include "value.h"
#include "dis-asm.h"
-#include "gdb_string.h"
#include "arch-utils.h"
#include "regcache.h"
#include "osabi.h"
}
/* Function: pointer_to_address
- Convert a target pointer to an address in host (CORE_ADDR) format. */
+ Convert a target pointer to an address in host (CORE_ADDR) format. */
static CORE_ADDR
iq2000_pointer_to_address (struct gdbarch *gdbarch,
only later do we compute its actual address. Since the
offset can be zero, we must first initialize all the
saved regs to minus one (so we can later distinguish
- between one that's not saved, and one that's saved at zero). */
+ between one that's not saved, and one that's saved at zero). */
for (srcreg = 0; srcreg < E_NUM_REGS; srcreg ++)
cache->saved_regs[srcreg] = -1;
cache->using_fp = 0;
{
LONGEST insn = read_memory_unsigned_integer (pc, 4, byte_order);
/* Skip any instructions writing to (sp) or decrementing the
- SP. */
+ SP. */
if ((insn & 0xffe00000) == 0xac200000)
{
/* sw using SP/%1 as base. */
if ((insn & 0xffff8000) == 0x20218000)
{
/* addi %1, %1, -N == addi %sp, %sp, -N */
- /* LEGACY -- from assembly-only port */
+ /* LEGACY -- from assembly-only port. */
found_decr_sp = 1;
cache->framesize = -((signed short) (insn & 0xffff));
continue;
if (tgtreg == E_SP_REGNUM || tgtreg == E_FP_REGNUM)
{
- /* "push" to stack (via SP or FP reg) */
+ /* "push" to stack (via SP or FP reg). */
if (cache->saved_regs[srcreg] == -1) /* Don't save twice. */
cache->saved_regs[srcreg] = offset;
continue;
iq2000_frame_prev_register (struct frame_info *this_frame, void **this_cache,
int regnum)
{
- struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame, this_cache);
+ struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame,
+ this_cache);
if (regnum == E_SP_REGNUM && cache->saved_sp)
return frame_unwind_got_constant (this_frame, regnum, cache->saved_sp);
iq2000_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
- struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame, this_cache);
+ struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame,
+ this_cache);
/* This marks the outermost frame. */
if (cache->base == 0)
static const struct frame_unwind iq2000_frame_unwind = {
NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
iq2000_frame_this_id,
iq2000_frame_prev_register,
NULL,
static CORE_ADDR
iq2000_frame_base_address (struct frame_info *this_frame, void **this_cache)
{
- struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame, this_cache);
+ struct iq2000_frame_cache *cache = iq2000_frame_cache (this_frame,
+ this_cache);
return cache->base;
}
static const unsigned char little_breakpoint[] = { 0x0d, 0x00, 0x00, 0x00 };
if ((*pcptr & 3) != 0)
- error ("breakpoint_from_pc: invalid breakpoint address 0x%lx",
+ error (_("breakpoint_from_pc: invalid breakpoint address 0x%lx"),
(long) *pcptr);
*lenptr = 4;
while (len > 0)
{
- char buf[4];
+ gdb_byte buf[4];
int size = len % 4 ?: 4;
memset (buf, 0, 4);
}
static enum return_value_convention
-iq2000_return_value (struct gdbarch *gdbarch, struct type *func_type,
+iq2000_return_value (struct gdbarch *gdbarch, struct value *function,
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
}
/* Convenience function to check 8-byte types for being a scalar type
- or a struct with only one long long or double member. */
+ or a struct with only one long long or double member. */
static int
iq2000_pass_8bytetype_by_address (struct type *type)
{
if (TYPE_CODE (ftype) == TYPE_CODE_FLT
|| TYPE_CODE (ftype) == TYPE_CODE_INT)
return 0;
- /* Everything else, pass by address. */
+ /* Everything else, pass by address. */
return 1;
}
struct type *type;
int i, argreg, typelen, slacklen;
int stackspace = 0;
- /* Used to copy struct arguments into the stack. */
+ /* Used to copy struct arguments into the stack. */
CORE_ADDR struct_ptr;
- /* First determine how much stack space we will need. */
+ /* First determine how much stack space we will need. */
for (i = 0, argreg = E_1ST_ARGREG + (struct_return != 0); i < nargs; i++)
{
type = value_type (args[i]);
{
/* long long,
double, and possibly
- structs with a single field of long long or double. */
+ structs with a single field of long long or double. */
if (argreg <= E_LAST_ARGREG - 1)
{
/* 8-byte arg goes into a register pair
- (must start with an even-numbered reg) */
+ (must start with an even-numbered reg). */
if (((argreg - E_1ST_ARGREG) % 2) != 0)
argreg ++;
argreg += 2;
}
else
{
- argreg = E_LAST_ARGREG + 1; /* no more argregs. */
- /* 8-byte arg goes on stack, must be 8-byte aligned. */
+ argreg = E_LAST_ARGREG + 1; /* no more argregs. */
+ /* 8-byte arg goes on stack, must be 8-byte aligned. */
stackspace = ((stackspace + 7) & ~7);
stackspace += 8;
}
{
/* Structs are passed as pointer to a copy of the struct.
So we need room on the stack for a copy of the struct
- plus for the argument pointer. */
+ plus for the argument pointer. */
if (argreg <= E_LAST_ARGREG)
argreg++;
else
}
/* Now copy params, in ascending order, into their assigned location
- (either in a register or on the stack). */
+ (either in a register or on the stack). */
sp -= (sp % 8); /* align */
struct_ptr = sp;
argreg = E_1ST_ARGREG;
if (struct_return)
{
- /* A function that returns a struct will consume one argreg to do so.
+ /* A function that returns a struct will consume one argreg to do so.
*/
regcache_cooked_write_unsigned (regcache, argreg++, struct_addr);
}
val = value_contents (args[i]);
if (typelen <= 4)
{
- /* Char, short, int, float, pointer, and structs <= four bytes. */
+ /* Char, short, int, float, pointer, and structs <= four bytes. */
slacklen = (4 - (typelen % 4)) % 4;
memset (buf, 0, sizeof (buf));
memcpy (buf + slacklen, val, typelen);
if (argreg <= E_LAST_ARGREG)
{
- /* Passed in a register. */
+ /* Passed in a register. */
regcache_raw_write (regcache, argreg++, buf);
}
else
{
- /* Passed on the stack. */
+ /* Passed on the stack. */
write_memory (sp + stackspace, buf, 4);
stackspace += 4;
}
else if (typelen == 8 && !iq2000_pass_8bytetype_by_address (type))
{
/* (long long), (double), or struct consisting of
- a single (long long) or (double). */
+ a single (long long) or (double). */
if (argreg <= E_LAST_ARGREG - 1)
{
/* 8-byte arg goes into a register pair
- (must start with an even-numbered reg) */
+ (must start with an even-numbered reg). */
if (((argreg - E_1ST_ARGREG) % 2) != 0)
argreg++;
regcache_raw_write (regcache, argreg++, val);
}
else
{
- /* 8-byte arg goes on stack, must be 8-byte aligned. */
- argreg = E_LAST_ARGREG + 1; /* no more argregs. */
+ /* 8-byte arg goes on stack, must be 8-byte aligned. */
+ argreg = E_LAST_ARGREG + 1; /* no more argregs. */
stackspace = ((stackspace + 7) & ~7);
write_memory (sp + stackspace, val, typelen);
stackspace += 8;
}
}
- /* Store return address. */
+ /* Store return address. */
regcache_cooked_write_unsigned (regcache, E_LR_REGNUM, bp_addr);
/* Update stack pointer. */
regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp);
- /* And that should do it. Return the new stack pointer. */
+ /* And that should do it. Return the new stack pointer. */
return sp;
}
/* Function: _initialize_iq2000_tdep
Initializer function for the iq2000 module.
- Called by gdb at start-up. */
+ Called by gdb at start-up. */
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_iq2000_tdep;
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