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2011-01-08 Michael Snyder <msnyder@vmware.com>

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* m2-exp.y: Comment cleanup, mostly periods and spaces.
	* m2-lang.c: Ditto.
	* m2-typeprint.c: Ditto.
	* m2-valprint.c: Ditto.
	* m32c-tdep.c: Ditto.
	* m32r-linux-nat.c: Ditto.
	* m32r-rom.c: Ditto.
	* m32r-tdep.c: Ditto.
	* m32r-tdep.h: Ditto.
	* m68hc11-tdep.c: Ditto.
	* m58klinux-nat.c: Ditto.
	* m68k-tdep.c: Ditto.
	* m88k-tdep.c: Ditto.
	* m88k-tdep.h: Ditto.
	* machoread.c: Ditto.
	* macrocmd.c: Ditto.
	* macroexp.c: Ditto.
	* macrotab.c: Ditto.
	* main.c: Ditto.
	* maint.c: Ditto.
	* mdebugread.c: Ditto.
	* mdebugread.h: Ditto.
	* memattr.c: Ditto.
	* memattr.h: Ditto.
	* memory-map.h: Ditto.
	* mep-tdep.c: Ditto.
	* microblaze-rom.c: Ditto.
	* microblaze-tdep.c: Ditto.
	* minsyms.c: Ditto.
	* mips-irix-tdep.c: Ditto.
	* mips-linux-nat.c: Ditto.
	* mips-linux-tdep.c: Ditto.
	* mips-linux-tdep.h: Ditto.
	* mipsnbsd-nat.c: Ditto.
	* mipsnbsd-tdep.c: Ditto.
	* mipsread.c: Ditto.
	* mips-tdep.c: Ditto.
	* mips-tdep.h: Ditto.
	* mn10300-linux-tdep.c: Ditto.
	* mn10300-tdep.c: Ditto.
	* mn10300-tdep.h: Ditto.
	* monitor.c: Ditto.
	* monitor.h: Ditto.
	* moxie-tdep.c: Ditto.
	* moxie-tdep.h: Ditto.
	* mt-tdep.c: Ditto.
This commit is contained in:
Michael Snyder 2011-01-09 03:20:33 +00:00
parent 1777feb0fe
commit 025bb325db
47 changed files with 948 additions and 815 deletions
Download patch file Download diff file Expand all files Collapse all files

86
gdb/m32r-tdep.c
View file

@ -57,7 +57,7 @@ m32r_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
/* Breakpoints
The little endian mode of M32R is unique. In most of architectures,
The little endian mode of M32R is unique. In most of architectures,
two 16-bit instructions, A and B, are placed as the following:
Big endian:
@ -76,7 +76,7 @@ m32r_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
This is because M32R always fetches instructions in 32-bit.
The following functions take care of this behavior. */
The following functions take care of this behavior. */
static int
m32r_memory_insert_breakpoint (struct gdbarch *gdbarch,
@ -168,10 +168,15 @@ m32r_memory_remove_breakpoint (struct gdbarch *gdbarch,
}
static const gdb_byte *
m32r_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr)
m32r_breakpoint_from_pc (struct gdbarch *gdbarch,
CORE_ADDR *pcptr, int *lenptr)
{
static gdb_byte be_bp_entry[] = { 0x10, 0xf1, 0x70, 0x00 }; /* dpt -> nop */
static gdb_byte le_bp_entry[] = { 0x00, 0x70, 0xf1, 0x10 }; /* dpt -> nop */
static gdb_byte be_bp_entry[] = {
0x10, 0xf1, 0x70, 0x00
}; /* dpt -> nop */
static gdb_byte le_bp_entry[] = {
0x00, 0x70, 0xf1, 0x10
}; /* dpt -> nop */
gdb_byte *bp;
/* Determine appropriate breakpoint. */
@ -240,9 +245,9 @@ m32r_register_type (struct gdbarch *gdbarch, int reg_nr)
/* Write into appropriate registers a function return value
of type TYPE, given in virtual format.
of type TYPE, given in virtual format.
Things always get returned in RET1_REGNUM, RET2_REGNUM. */
Things always get returned in RET1_REGNUM, RET2_REGNUM. */
static void
m32r_store_return_value (struct type *type, struct regcache *regcache,
@ -264,7 +269,7 @@ m32r_store_return_value (struct type *type, struct regcache *regcache,
}
}
/* This is required by skip_prologue. The results of decoding a prologue
/* This is required by skip_prologue. The results of decoding a prologue
should be cached because this thrashing is getting nuts. */
static int
@ -287,7 +292,7 @@ decode_prologue (struct gdbarch *gdbarch,
for (current_pc = start_pc; current_pc < scan_limit; current_pc += 2)
{
/* Check if current pc's location is readable. */
/* Check if current pc's location is readable. */
if (!safe_read_memory_integer (current_pc, 2, byte_order, &return_value))
return -1;
@ -297,10 +302,10 @@ decode_prologue (struct gdbarch *gdbarch,
break;
/* If this is a 32 bit instruction, we dont want to examine its
immediate data as though it were an instruction */
immediate data as though it were an instruction. */
if (current_pc & 0x02)
{
/* decode this instruction further */
/* Decode this instruction further. */
insn &= 0x7fff;
}
else
@ -312,7 +317,7 @@ decode_prologue (struct gdbarch *gdbarch,
current_pc += 2; /* skip the immediate data */
/* Check if current pc's location is readable. */
/* Check if current pc's location is readable. */
if (!safe_read_memory_integer (current_pc, 2, byte_order,
&return_value))
return -1;
@ -326,15 +331,15 @@ decode_prologue (struct gdbarch *gdbarch,
}
else
{
if (((insn >> 8) == 0xe4) /* ld24 r4, xxxxxx; sub sp, r4 */
if (((insn >> 8) == 0xe4) /* ld24 r4, xxxxxx; sub sp, r4 */
&& safe_read_memory_integer (current_pc + 2,
2, byte_order,
&return_value)
&& read_memory_unsigned_integer (current_pc + 2,
2, byte_order)
== 0x0f24)
/* subtract 24 bit sign-extended negative-offset */
{
/* Subtract 24 bit sign-extended negative-offset. */
insn = read_memory_unsigned_integer (current_pc - 2,
4, byte_order);
if (insn & 0x00800000) /* sign extend */
@ -348,7 +353,7 @@ decode_prologue (struct gdbarch *gdbarch,
continue;
}
}
op1 = insn & 0xf000; /* isolate just the first nibble */
op1 = insn & 0xf000; /* Isolate just the first nibble. */
if ((insn & 0xf0ff) == 0x207f)
{ /* st reg, @-sp */
@ -359,7 +364,7 @@ decode_prologue (struct gdbarch *gdbarch,
continue;
}
if ((insn >> 8) == 0x4f) /* addi sp, xx */
/* add 8 bit sign-extended offset */
/* Add 8 bit sign-extended offset. */
{
int stack_adjust = (signed char) (insn & 0xff);
@ -384,25 +389,25 @@ decode_prologue (struct gdbarch *gdbarch,
break; /* end of stack adjustments */
}
/* Nop looks like a branch, continue explicitly */
/* Nop looks like a branch, continue explicitly. */
if (insn == 0x7000)
{
after_prologue = current_pc + 2;
continue; /* nop occurs between pushes */
continue; /* nop occurs between pushes. */
}
/* End of prolog if any of these are trap instructions */
/* End of prolog if any of these are trap instructions. */
if ((insn & 0xfff0) == 0x10f0)
{
after_prologue = current_pc;
break;
}
/* End of prolog if any of these are branch instructions */
/* End of prolog if any of these are branch instructions. */
if ((op1 == 0x7000) || (op1 == 0xb000) || (op1 == 0xf000))
{
after_prologue = current_pc;
continue;
}
/* Some of the branch instructions are mixed with other types */
/* Some of the branch instructions are mixed with other types. */
if (op1 == 0x1000)
{
int subop = insn & 0x0ff0;
@ -424,22 +429,23 @@ decode_prologue (struct gdbarch *gdbarch,
if (after_stack_adjust != 0)
/* We did not find a "mv fp,sp", but we DID find
a stack_adjust. Is it safe to use that as the
end of the prologue? I just don't know. */
end of the prologue? I just don't know. */
{
*pl_endptr = after_stack_adjust;
}
else if (after_push != 0)
/* We did not find a "mv fp,sp", but we DID find
a push. Is it safe to use that as the
end of the prologue? I just don't know. */
end of the prologue? I just don't know. */
{
*pl_endptr = after_push;
}
else
/* We reached the end of the loop without finding the end
of the prologue. No way to win -- we should report failure.
The way we do that is to return the original start_pc.
GDB will set a breakpoint at the start of the function (etc.) */
of the prologue. No way to win -- we should report
failure. The way we do that is to return the original
start_pc. GDB will set a breakpoint at the start of
the function (etc.) */
*pl_endptr = start_pc;
}
return 0;
@ -455,7 +461,7 @@ decode_prologue (struct gdbarch *gdbarch,
} /* decode_prologue */
/* Function: skip_prologue
Find end of function prologue */
Find end of function prologue. */
#define DEFAULT_SEARCH_LIMIT 128
@ -467,7 +473,7 @@ m32r_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
struct symtab_and_line sal;
LONGEST return_value;
/* See what the symbol table says */
/* See what the symbol table says. */
if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
{
@ -488,7 +494,7 @@ m32r_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
else
func_end = pc + DEFAULT_SEARCH_LIMIT;
/* If pc's location is not readable, just quit. */
/* If pc's location is not readable, just quit. */
if (!safe_read_memory_integer (pc, 4, byte_order, &return_value))
return pc;
@ -521,7 +527,7 @@ struct m32r_unwind_cache
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: the address we return
for it IS the sp for the next frame. */
for it IS the sp for the next frame. */
static struct m32r_unwind_cache *
m32r_frame_unwind_cache (struct frame_info *this_frame,
@ -603,8 +609,8 @@ m32r_frame_unwind_cache (struct frame_info *this_frame,
}
else if ((op & 0xfff0) == 0x10f0)
{
/* end of prologue if this is a trap instruction */
break; /* end of stack adjustments */
/* End of prologue if this is a trap instruction. */
break; /* End of stack adjustments. */
}
}
@ -692,7 +698,7 @@ m32r_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
int len;
int odd_sized_struct;
/* first force sp to a 4-byte alignment */
/* First force sp to a 4-byte alignment. */
sp = sp & ~3;
/* Set the return address. For the m32r, the return breakpoint is
@ -708,10 +714,10 @@ m32r_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
argreg++;
}
/* Now make sure there's space on the stack */
/* Now make sure there's space on the stack. */
for (argnum = 0, stack_alloc = 0; argnum < nargs; argnum++)
stack_alloc += ((TYPE_LENGTH (value_type (args[argnum])) + 3) & ~3);
sp -= stack_alloc; /* make room on stack for args */
sp -= stack_alloc; /* Make room on stack for args. */
for (argnum = 0, stack_offset = 0; argnum < nargs; argnum++)
{
@ -733,7 +739,7 @@ m32r_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
}
else if (len < 4)
{
/* value gets right-justified in the register or stack word */
/* Value gets right-justified in the register or stack word. */
memcpy (valbuf + (register_size (gdbarch, argreg) - len),
(gdb_byte *) value_contents (args[argnum]), len);
val = valbuf;
@ -745,13 +751,13 @@ m32r_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
{
if (argreg > ARGN_REGNUM)
{
/* must go on the stack */
/* Must go on the stack. */
write_memory (sp + stack_offset, val, 4);
stack_offset += 4;
}
else if (argreg <= ARGN_REGNUM)
{
/* there's room in a register */
/* There's room in a register. */
regval =
extract_unsigned_integer (val,
register_size (gdbarch, argreg),
@ -793,7 +799,7 @@ m32r_extract_return_value (struct type *type, struct regcache *regcache,
store_unsigned_integer (valbuf, (len > 4 ? len - 4 : len), byte_order, tmp);
/* Ignore return values more than 8 bytes in size because the m32r
returns anything more than 8 bytes in the stack. */
returns anything more than 8 bytes in the stack. */
if (len > 4)
{
regcache_cooked_read_unsigned (regcache, RET1_REGNUM + 1, &tmp);
@ -924,7 +930,7 @@ m32r_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_write_pc (gdbarch, m32r_write_pc);
set_gdbarch_unwind_sp (gdbarch, m32r_unwind_sp);
set_gdbarch_num_regs (gdbarch, M32R_NUM_REGS);
set_gdbarch_sp_regnum (gdbarch, M32R_SP_REGNUM);
set_gdbarch_register_name (gdbarch, m32r_register_name);
set_gdbarch_register_type (gdbarch, m32r_register_type);