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2011-01-10 Michael Snyder <msnyder@vmware.com>

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* nto-procfs.c: Comment cleanup, mostly periods and spaces.
	* nto-tdep.c: Ditto.
	* nto-tdep.h: Ditto.
	* objc-exp.y: Ditto.
	* objc-lang.c: Ditto.
	* objfiles.c: Ditto.
	* objfiles.h: Ditto.
	* observer.c: Ditto.
	* opencl-lang.c: Ditto.
	* osabi.c: Ditto.
	* parse.c: Ditto.
	* parser-defs.h: Ditto.
	* p-exp.y: Ditto.
	* p-lang.c: Ditto.
	* posix-hdep.c: Ditto.
	* ppcbug-rom.c: Ditto.
	* ppc-linux-nat.c: Ditto.
	* ppc-linux-tdep.c: Ditto.
	* ppc-linux-tdep.h: Ditto.
	* ppcnbsd-tdep.c: Ditto.
	* ppcobsd-tdep.c: Ditto.
	* ppcobsd-tdep.h: Ditto.
	* ppc-sysv-tdep.c: Ditto.
	* ppc-tdep.h: Ditto.
	* printcmd.c: Ditto.
	* proc-abi.c: Ditto.
	* proc-flags.c: Ditto.
	* procfs.c: Ditto.
	* proc-utils.h: Ditto.
	* progspace.h: Ditto.
	* prologue-value.c: Ditto.
	* prologue-value.h: Ditto.
	* psympriv.h: Ditto.
	* psymtab.c: Ditto.
	* p-typeprint.c: Ditto.
	* p-valprint.c: Ditto.
	* ravenscar-sparc-thread.c: Ditto.
	* ravenscar-thread.c: Ditto.
	* ravenscar-thread.h: Ditto.
	* record.c: Ditto.
	* regcache.c: Ditto.
	* regcache.h: Ditto.
	* remote.c: Ditto.
	* remote-fileio.c: Ditto.
	* remote-fileio.h: Ditto.
	* remote.h: Ditto.
	* remote-m32r-sdi.c: Ditto.
	* remote-mips.c: Ditto.
	* remote-sim.c: Ditto.
	* rs6000-aix-tdep.c: Ditto.
	* rs6000-nat.c: Ditto.
	* rs6000-tdep.c: Ditto.
This commit is contained in:
Michael Snyder
2011-01-10 20:38:51 +00:00
parent a73c6dcdd4
commit 0df8b4180a
53 changed files with 1096 additions and 936 deletions
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81
gdb/rs6000-tdep.c
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@@ -122,7 +122,7 @@ static const char *powerpc_vector_strings[] =
static enum powerpc_vector_abi powerpc_vector_abi_global = POWERPC_VEC_AUTO;
static const char *powerpc_vector_abi_string = "auto";
/* To be used by skip_prologue. */
/* To be used by skip_prologue. */
struct rs6000_framedata
{
@@ -135,8 +135,8 @@ struct rs6000_framedata
int saved_vr; /* smallest # of saved vr */
int saved_ev; /* smallest # of saved ev */
int alloca_reg; /* alloca register number (frame ptr) */
char frameless; /* true if frameless functions. */
char nosavedpc; /* true if pc not saved. */
char frameless; /* true if frameless functions. */
char nosavedpc; /* true if pc not saved. */
char used_bl; /* true if link register clobbered */
int gpr_offset; /* offset of saved gprs from prev sp */
int fpr_offset; /* offset of saved fprs from prev sp */
@@ -1017,7 +1017,8 @@ ppc_displaced_step_fixup (struct gdbarch *gdbarch,
paddress (gdbarch, insn), paddress (gdbarch, current_pc),
paddress (gdbarch, from + offset));
regcache_cooked_write_unsigned (regs, gdbarch_pc_regnum (gdbarch),
regcache_cooked_write_unsigned (regs,
gdbarch_pc_regnum (gdbarch),
from + offset);
}
}
@@ -1275,7 +1276,7 @@ bl_to_blrl_insn_p (CORE_ADDR pc, int insn, enum bfd_endian byte_order)
return 0;
}
/* Masks for decoding a branch-and-link (bl) instruction.
/* Masks for decoding a branch-and-link (bl) instruction.
BL_MASK and BL_INSTRUCTION are used in combination with each other.
The former is anded with the opcode in question; if the result of
@@ -1317,8 +1318,7 @@ rs6000_skip_stack_check (struct gdbarch *gdbarch, const CORE_ADDR start_pc)
/* First possible sequence: A small number of probes.
stw 0, -<some immediate>(1)
[repeat this instruction any (small) number of times]
*/
[repeat this instruction any (small) number of times]. */
if ((op & 0xffff0000) == 0x90010000)
{
@@ -1340,8 +1340,7 @@ rs6000_skip_stack_check (struct gdbarch *gdbarch, const CORE_ADDR start_pc)
addi 12,12,-<some immediate>
stw 0,0(12)
b <disp>
[possibly one last probe: stw 0,<some immediate>(12)]
*/
[possibly one last probe: stw 0,<some immediate>(12)]. */
while (1)
{
@@ -1397,7 +1396,7 @@ rs6000_skip_stack_check (struct gdbarch *gdbarch, const CORE_ADDR start_pc)
if ((op & 0xfc000001) != 0x48000000)
break;
/* [possibly one last probe: stw 0,<some immediate>(12)] */
/* [possibly one last probe: stw 0,<some immediate>(12)]. */
pc = pc + 4;
op = rs6000_fetch_instruction (gdbarch, pc);
if ((op & 0xffff0000) == 0x900c0000)
@@ -1491,8 +1490,7 @@ rs6000_skip_stack_check (struct gdbarch *gdbarch, const CORE_ADDR start_pc)
- ev_offset is the offset of the first saved ev from the previous frame.
- lr_offset is the offset of the saved lr
- cr_offset is the offset of the saved cr
- vrsave_offset is the offset of the saved vrsave register
*/
- vrsave_offset is the offset of the saved vrsave register. */
static CORE_ADDR
skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
@@ -1540,7 +1538,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
/* Sometimes it isn't clear if an instruction is a prologue
instruction or not. When we encounter one of these ambiguous
cases, we'll set prev_insn_was_prologue_insn to 0 (false).
Otherwise, we'll assume that it really is a prologue instruction. */
Otherwise, we'll assume that it really is a prologue instruction. */
if (prev_insn_was_prologue_insn)
last_prologue_pc = pc;
@@ -1625,7 +1623,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
/* nop */
/* Allow nops in the prologue, but do not consider them to
be part of the prologue unless followed by other prologue
instructions. */
instructions. */
prev_insn_was_prologue_insn = 0;
continue;
@@ -1719,7 +1717,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
}
else if ((op & 0xfc000001) == 0x48000001)
{ /* bl foo,
to save fprs??? */
to save fprs??? */
fdata->frameless = 0;
@@ -1741,7 +1739,8 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
struct symtab_and_line prologue_sal = find_pc_line (orig_pc, 0);
struct symtab_and_line this_sal = find_pc_line (pc, 0);
if ((prologue_sal.line == 0) || (prologue_sal.line != this_sal.line))
if ((prologue_sal.line == 0)
|| (prologue_sal.line != this_sal.line))
break;
}
@@ -1750,11 +1749,11 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
/* At this point, make sure this is not a trampoline
function (a function that simply calls another functions,
and nothing else). If the next is not a nop, this branch
was part of the function prologue. */
was part of the function prologue. */
if (op == 0x4def7b82 || op == 0) /* crorc 15, 15, 15 */
break; /* don't skip over
this branch */
break; /* Don't skip over
this branch. */
fdata->used_bl = 1;
continue;
@@ -1769,7 +1768,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
}
else if ((op & 0xfc1f016a) == 0x7c01016e)
{ /* stwux rX,r1,rY */
/* no way to figure out what r1 is going to be */
/* No way to figure out what r1 is going to be. */
fdata->frameless = 0;
offset = fdata->offset;
continue;
@@ -1783,7 +1782,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
}
else if ((op & 0xfc1f016a) == 0x7c01016a)
{ /* stdux rX,r1,rY */
/* no way to figure out what r1 is going to be */
/* No way to figure out what r1 is going to be. */
fdata->frameless = 0;
offset = fdata->offset;
continue;
@@ -1797,8 +1796,8 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
}
/* Load up minimal toc pointer. Do not treat an epilogue restore
of r31 as a minimal TOC load. */
else if (((op >> 22) == 0x20f || /* l r31,... or l r30,... */
(op >> 22) == 0x3af) /* ld r31,... or ld r30,... */
else if (((op >> 22) == 0x20f || /* l r31,... or l r30,... */
(op >> 22) == 0x3af) /* ld r31,... or ld r30,... */
&& !framep
&& !minimal_toc_loaded)
{
@@ -1811,7 +1810,8 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
else if ((op & 0xfc0007fe) == 0x7c000378 && /* mr(.) Rx,Ry */
(((op >> 21) & 31) >= 3) && /* R3 >= Ry >= R10 */
(((op >> 21) & 31) <= 10) &&
((long) ((op >> 16) & 31) >= fdata->saved_gpr)) /* Rx: local var reg */
((long) ((op >> 16) & 31)
>= fdata->saved_gpr)) /* Rx: local var reg */
{
continue;
@@ -1893,7 +1893,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
vr_saved_offset = SIGNED_SHORT (op);
/* This insn by itself is not part of the prologue, unless
if part of the pair of insns mentioned above. So do not
if part of the pair of insns mentioned above. So do not
record this insn as part of the prologue yet. */
prev_insn_was_prologue_insn = 0;
}
@@ -2051,7 +2051,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
#if 0
/* I have problems with skipping over __main() that I need to address
* sometime. Previously, I used to use misc_function_vector which
* sometime. Previously, I used to use misc_function_vector which
* didn't work as well as I wanted to be. -MGO */
/* If the first thing after skipping a prolog is a branch to a function,
@@ -2062,7 +2062,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
if ((op & 0xfc000001) == 0x48000001)
{ /* bl foo, an initializer function? */
{ /* bl foo, an initializer function? */
op = read_memory_integer (pc + 4, 4, byte_order);
if (op == 0x4def7b82)
@@ -2256,7 +2256,8 @@ rs6000_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
if (op != trampoline_code[ii])
return 0;
}
ii = get_frame_register_unsigned (frame, 11); /* r11 holds destination addr */
ii = get_frame_register_unsigned (frame, 11); /* r11 holds destination
addr. */
pc = read_memory_unsigned_integer (ii, tdep->wordsize, byte_order);
return pc;
}
@@ -2734,7 +2735,8 @@ efpr_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache,
}
static void
rs6000_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
rs6000_pseudo_register_read (struct gdbarch *gdbarch,
struct regcache *regcache,
int reg_nr, gdb_byte *buffer)
{
struct gdbarch *regcache_arch = get_regcache_arch (regcache);
@@ -3194,7 +3196,7 @@ rs6000_frame_cache (struct frame_info *this_frame, void **this_cache)
}
/* if != -1, fdata.saved_ev is the smallest number of saved_ev.
All vr's from saved_ev to ev31 are saved. ????? */
All vr's from saved_ev to ev31 are saved. ????? */
if (tdep->ppc_ev0_regnum != -1)
{
if (fdata.saved_ev >= 0)
@@ -3213,12 +3215,14 @@ rs6000_frame_cache (struct frame_info *this_frame, void **this_cache)
/* If != 0, fdata.cr_offset is the offset from the frame that
holds the CR. */
if (fdata.cr_offset != 0)
cache->saved_regs[tdep->ppc_cr_regnum].addr = cache->base + fdata.cr_offset;
cache->saved_regs[tdep->ppc_cr_regnum].addr
= cache->base + fdata.cr_offset;
/* If != 0, fdata.lr_offset is the offset from the frame that
holds the LR. */
if (fdata.lr_offset != 0)
cache->saved_regs[tdep->ppc_lr_regnum].addr = cache->base + fdata.lr_offset;
cache->saved_regs[tdep->ppc_lr_regnum].addr
= cache->base + fdata.lr_offset;
else if (fdata.lr_register != -1)
cache->saved_regs[tdep->ppc_lr_regnum].realreg = fdata.lr_register;
/* The PC is found in the link register. */
@@ -3228,7 +3232,8 @@ rs6000_frame_cache (struct frame_info *this_frame, void **this_cache)
/* If != 0, fdata.vrsave_offset is the offset from the frame that
holds the VRSAVE. */
if (fdata.vrsave_offset != 0)
cache->saved_regs[tdep->ppc_vrsave_regnum].addr = cache->base + fdata.vrsave_offset;
cache->saved_regs[tdep->ppc_vrsave_regnum].addr
= cache->base + fdata.vrsave_offset;
if (fdata.alloca_reg < 0)
/* If no alloca register used, then fi->frame is the value of the
@@ -3950,7 +3955,8 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
if (have_spe || have_dfp || have_vsx)
{
set_gdbarch_pseudo_register_read (gdbarch, rs6000_pseudo_register_read);
set_gdbarch_pseudo_register_write (gdbarch, rs6000_pseudo_register_write);
set_gdbarch_pseudo_register_write (gdbarch,
rs6000_pseudo_register_write);
}
set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1);
@@ -4008,13 +4014,13 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_breakpoint_from_pc (gdbarch, rs6000_breakpoint_from_pc);
/* The value of symbols of type N_SO and N_FUN maybe null when
it shouldn't be. */
it shouldn't be. */
set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
/* Handles single stepping of atomic sequences. */
set_gdbarch_software_single_step (gdbarch, ppc_deal_with_atomic_sequence);
/* Not sure on this. FIXMEmgo */
/* Not sure on this. FIXMEmgo */
set_gdbarch_frame_args_skip (gdbarch, 8);
/* Helpers for function argument information. */
@@ -4179,7 +4185,8 @@ powerpc_set_vector_abi (char *args, int from_tty,
/* Initialization code. */
extern initialize_file_ftype _initialize_rs6000_tdep; /* -Wmissing-prototypes */
/* -Wmissing-prototypes */
extern initialize_file_ftype _initialize_rs6000_tdep;
void
_initialize_rs6000_tdep (void)