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* doc/gdb.texinfo (PowerPC): Mention Extended FPR's for POWER7.

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(PowerPC features): Mention feature set for VSX registers.

	* gdbserver/Makefile.in: Add required vsx dependencies.

	* gdbserver/linux-ppc-low: Define PPC_FEATURE_HAS_VSX.
	Declare init_registers_powerpc_vsx32l.
	Declare init_registers_powerpc_vsx64l.
	Define PTRACE_GETVSXREGS and PTRACE_SETVSXREGS.
	(ppc_arch_setup): Check for VSX in hwcap.
	(ppc_fill_vsxregset): New function.
	(ppc_store_vsxregset): New function.
	Add new VSX entry in regset_info target_regsets.

	* gdbserver/configure.srv: Add new VSX dependencies.
This commit is contained in:
Luis Machado
2008-08-18 15:46:08 +00:00
parent 46a9b8ed1b
commit 677c5bb1ab
6 changed files with 92 additions and 5 deletions
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52
gdb/gdbserver/linux-ppc-low.c
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@@ -25,6 +25,7 @@
#include <asm/ptrace.h>
/* These are in <asm/cputable.h> in current kernels. */
#define PPC_FEATURE_HAS_VSX 0x00000080
#define PPC_FEATURE_HAS_ALTIVEC 0x10000000
#define PPC_FEATURE_HAS_SPE 0x00800000
@@ -35,12 +36,16 @@ static unsigned long ppc_hwcap;
void init_registers_powerpc_32l (void);
/* Defined in auto-generated file powerpc-altivec32l.c. */
void init_registers_powerpc_altivec32l (void);
/* Defined in auto-generated file powerpc-vsx32l.c. */
void init_registers_powerpc_vsx32l (void);
/* Defined in auto-generated file powerpc-e500l.c. */
void init_registers_powerpc_e500l (void);
/* Defined in auto-generated file powerpc-64l.c. */
void init_registers_powerpc_64l (void);
/* Defined in auto-generated file powerpc-altivec64l.c. */
void init_registers_powerpc_altivec64l (void);
/* Defined in auto-generated file powerpc-vsx64l.c. */
void init_registers_powerpc_vsx64l (void);
#define ppc_num_regs 73
@@ -254,9 +259,10 @@ ppc_arch_setup (void)
if (msr < 0)
{
ppc_get_hwcap (&ppc_hwcap);
if (ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)
if (ppc_hwcap & PPC_FEATURE_HAS_VSX)
init_registers_powerpc_vsx64l ();
else if (ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)
init_registers_powerpc_altivec64l ();
return;
}
#endif
@@ -265,9 +271,12 @@ ppc_arch_setup (void)
init_registers_powerpc_32l ();
ppc_get_hwcap (&ppc_hwcap);
if (ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)
if (ppc_hwcap & PPC_FEATURE_HAS_VSX)
init_registers_powerpc_vsx32l ();
else if (ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)
init_registers_powerpc_altivec32l ();
/* On 32-bit machines, check for SPE registers.
Set the low target's regmap field as appropriately. */
#ifndef __powerpc64__
@@ -316,6 +325,41 @@ static void ppc_fill_gregset (void *buf)
ppc_collect_ptrace_register (i, (char *) buf + ppc_regmap[i]);
}
#ifndef PTRACE_GETVSXREGS
#define PTRACE_GETVSXREGS 27
#define PTRACE_SETVSXREGS 28
#endif
#define SIZEOF_VSXREGS 32*8
static void
ppc_fill_vsxregset (void *buf)
{
int i, base;
char *regset = buf;
if (!(ppc_hwcap & PPC_FEATURE_HAS_VSX))
return;
base = find_regno ("vs0h");
for (i = 0; i < 32; i++)
collect_register (base + i, &regset[i * 8]);
}
static void
ppc_store_vsxregset (const void *buf)
{
int i, base;
const char *regset = buf;
if (!(ppc_hwcap & PPC_FEATURE_HAS_VSX))
return;
base = find_regno ("vs0h");
for (i = 0; i < 32; i++)
supply_register (base + i, &regset[i * 8]);
}
#ifndef PTRACE_GETVRREGS
#define PTRACE_GETVRREGS 18
#define PTRACE_SETVRREGS 19
@@ -408,6 +452,8 @@ struct regset_info target_regsets[] = {
fetch them every time, but still fall back to PTRACE_PEEKUSER for the
general registers. Some kernels support these, but not the newer
PPC_PTRACE_GETREGS. */
{ PTRACE_GETVSXREGS, PTRACE_SETVSXREGS, SIZEOF_VSXREGS, EXTENDED_REGS,
ppc_fill_vsxregset, ppc_store_vsxregset },
{ PTRACE_GETVRREGS, PTRACE_SETVRREGS, SIZEOF_VRREGS, EXTENDED_REGS,
ppc_fill_vrregset, ppc_store_vrregset },
{ PTRACE_GETEVRREGS, PTRACE_SETEVRREGS, 32 * 4 + 8 + 4, EXTENDED_REGS,