/* GNU/Linux/PowerPC specific low level interface, for the remote server for
GDB.
- Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright (C) 1995-2015 Free Software Foundation, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "server.h"
#include "linux-low.h"
+#include <elf.h>
#include <asm/ptrace.h>
-#define ppc_num_regs 71
+#include "nat/ppc-linux.h"
+static unsigned long ppc_hwcap;
+
+
+/* Defined in auto-generated file powerpc-32l.c. */
+void init_registers_powerpc_32l (void);
+extern const struct target_desc *tdesc_powerpc_32l;
+
+/* Defined in auto-generated file powerpc-altivec32l.c. */
+void init_registers_powerpc_altivec32l (void);
+extern const struct target_desc *tdesc_powerpc_altivec32l;
+
+/* Defined in auto-generated file powerpc-cell32l.c. */
+void init_registers_powerpc_cell32l (void);
+extern const struct target_desc *tdesc_powerpc_cell32l;
+
+/* Defined in auto-generated file powerpc-vsx32l.c. */
+void init_registers_powerpc_vsx32l (void);
+extern const struct target_desc *tdesc_powerpc_vsx32l;
+
+/* Defined in auto-generated file powerpc-isa205-32l.c. */
+void init_registers_powerpc_isa205_32l (void);
+extern const struct target_desc *tdesc_powerpc_isa205_32l;
+
+/* Defined in auto-generated file powerpc-isa205-altivec32l.c. */
+void init_registers_powerpc_isa205_altivec32l (void);
+extern const struct target_desc *tdesc_powerpc_isa205_altivec32l;
+
+/* Defined in auto-generated file powerpc-isa205-vsx32l.c. */
+void init_registers_powerpc_isa205_vsx32l (void);
+extern const struct target_desc *tdesc_powerpc_isa205_vsx32l;
+
+/* Defined in auto-generated file powerpc-e500l.c. */
+void init_registers_powerpc_e500l (void);
+extern const struct target_desc *tdesc_powerpc_e500l;
+
+/* Defined in auto-generated file powerpc-64l.c. */
+void init_registers_powerpc_64l (void);
+extern const struct target_desc *tdesc_powerpc_64l;
+
+/* Defined in auto-generated file powerpc-altivec64l.c. */
+void init_registers_powerpc_altivec64l (void);
+extern const struct target_desc *tdesc_powerpc_altivec64l;
+
+/* Defined in auto-generated file powerpc-cell64l.c. */
+void init_registers_powerpc_cell64l (void);
+extern const struct target_desc *tdesc_powerpc_cell64l;
+
+/* Defined in auto-generated file powerpc-vsx64l.c. */
+void init_registers_powerpc_vsx64l (void);
+extern const struct target_desc *tdesc_powerpc_vsx64l;
+
+/* Defined in auto-generated file powerpc-isa205-64l.c. */
+void init_registers_powerpc_isa205_64l (void);
+extern const struct target_desc *tdesc_powerpc_isa205_64l;
+
+/* Defined in auto-generated file powerpc-isa205-altivec64l.c. */
+void init_registers_powerpc_isa205_altivec64l (void);
+extern const struct target_desc *tdesc_powerpc_isa205_altivec64l;
+
+/* Defined in auto-generated file powerpc-isa205-vsx64l.c. */
+void init_registers_powerpc_isa205_vsx64l (void);
+extern const struct target_desc *tdesc_powerpc_isa205_vsx64l;
+
+#define ppc_num_regs 73
+
+#ifdef __powerpc64__
+/* We use a constant for FPSCR instead of PT_FPSCR, because
+ many shipped PPC64 kernels had the wrong value in ptrace.h. */
+static int ppc_regmap[] =
+ {PT_R0 * 8, PT_R1 * 8, PT_R2 * 8, PT_R3 * 8,
+ PT_R4 * 8, PT_R5 * 8, PT_R6 * 8, PT_R7 * 8,
+ PT_R8 * 8, PT_R9 * 8, PT_R10 * 8, PT_R11 * 8,
+ PT_R12 * 8, PT_R13 * 8, PT_R14 * 8, PT_R15 * 8,
+ PT_R16 * 8, PT_R17 * 8, PT_R18 * 8, PT_R19 * 8,
+ PT_R20 * 8, PT_R21 * 8, PT_R22 * 8, PT_R23 * 8,
+ PT_R24 * 8, PT_R25 * 8, PT_R26 * 8, PT_R27 * 8,
+ PT_R28 * 8, PT_R29 * 8, PT_R30 * 8, PT_R31 * 8,
+ PT_FPR0*8, PT_FPR0*8 + 8, PT_FPR0*8+16, PT_FPR0*8+24,
+ PT_FPR0*8+32, PT_FPR0*8+40, PT_FPR0*8+48, PT_FPR0*8+56,
+ PT_FPR0*8+64, PT_FPR0*8+72, PT_FPR0*8+80, PT_FPR0*8+88,
+ PT_FPR0*8+96, PT_FPR0*8+104, PT_FPR0*8+112, PT_FPR0*8+120,
+ PT_FPR0*8+128, PT_FPR0*8+136, PT_FPR0*8+144, PT_FPR0*8+152,
+ PT_FPR0*8+160, PT_FPR0*8+168, PT_FPR0*8+176, PT_FPR0*8+184,
+ PT_FPR0*8+192, PT_FPR0*8+200, PT_FPR0*8+208, PT_FPR0*8+216,
+ PT_FPR0*8+224, PT_FPR0*8+232, PT_FPR0*8+240, PT_FPR0*8+248,
+ PT_NIP * 8, PT_MSR * 8, PT_CCR * 8, PT_LNK * 8,
+ PT_CTR * 8, PT_XER * 8, PT_FPR0*8 + 256,
+ PT_ORIG_R3 * 8, PT_TRAP * 8 };
+#else
/* Currently, don't check/send MQ. */
static int ppc_regmap[] =
{PT_R0 * 4, PT_R1 * 4, PT_R2 * 4, PT_R3 * 4,
PT_FPR0*4+192, PT_FPR0*4+200, PT_FPR0*4+208, PT_FPR0*4+216,
PT_FPR0*4+224, PT_FPR0*4+232, PT_FPR0*4+240, PT_FPR0*4+248,
PT_NIP * 4, PT_MSR * 4, PT_CCR * 4, PT_LNK * 4,
- PT_CTR * 4, PT_XER * 4, PT_FPSCR * 4, };
+ PT_CTR * 4, PT_XER * 4, PT_FPSCR * 4,
+ PT_ORIG_R3 * 4, PT_TRAP * 4
+ };
+
+static int ppc_regmap_e500[] =
+ {PT_R0 * 4, PT_R1 * 4, PT_R2 * 4, PT_R3 * 4,
+ PT_R4 * 4, PT_R5 * 4, PT_R6 * 4, PT_R7 * 4,
+ PT_R8 * 4, PT_R9 * 4, PT_R10 * 4, PT_R11 * 4,
+ PT_R12 * 4, PT_R13 * 4, PT_R14 * 4, PT_R15 * 4,
+ PT_R16 * 4, PT_R17 * 4, PT_R18 * 4, PT_R19 * 4,
+ PT_R20 * 4, PT_R21 * 4, PT_R22 * 4, PT_R23 * 4,
+ PT_R24 * 4, PT_R25 * 4, PT_R26 * 4, PT_R27 * 4,
+ PT_R28 * 4, PT_R29 * 4, PT_R30 * 4, PT_R31 * 4,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ PT_NIP * 4, PT_MSR * 4, PT_CCR * 4, PT_LNK * 4,
+ PT_CTR * 4, PT_XER * 4, -1,
+ PT_ORIG_R3 * 4, PT_TRAP * 4
+ };
+#endif
static int
ppc_cannot_store_register (int regno)
{
+ const struct target_desc *tdesc = current_process ()->tdesc;
+
+#ifndef __powerpc64__
/* Some kernels do not allow us to store fpscr. */
- if (regno == find_regno ("fpscr"))
+ if (!(ppc_hwcap & PPC_FEATURE_HAS_SPE)
+ && regno == find_regno (tdesc, "fpscr"))
+ return 2;
+#endif
+
+ /* Some kernels do not allow us to store orig_r3 or trap. */
+ if (regno == find_regno (tdesc, "orig_r3")
+ || regno == find_regno (tdesc, "trap"))
return 2;
return 0;
return 0;
}
+static void
+ppc_collect_ptrace_register (struct regcache *regcache, int regno, char *buf)
+{
+ memset (buf, 0, sizeof (long));
+
+ if (__BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ /* Little-endian values always sit at the left end of the buffer. */
+ collect_register (regcache, regno, buf);
+ }
+ else if (__BYTE_ORDER == __BIG_ENDIAN)
+ {
+ /* Big-endian values sit at the right end of the buffer. In case of
+ registers whose sizes are smaller than sizeof (long), we must use a
+ padding to access them correctly. */
+ int size = register_size (regcache->tdesc, regno);
+
+ if (size < sizeof (long))
+ collect_register (regcache, regno, buf + sizeof (long) - size);
+ else
+ collect_register (regcache, regno, buf);
+ }
+ else
+ perror_with_name ("Unexpected byte order");
+}
+
+static void
+ppc_supply_ptrace_register (struct regcache *regcache,
+ int regno, const char *buf)
+{
+ if (__BYTE_ORDER == __LITTLE_ENDIAN)
+ {
+ /* Little-endian values always sit at the left end of the buffer. */
+ supply_register (regcache, regno, buf);
+ }
+ else if (__BYTE_ORDER == __BIG_ENDIAN)
+ {
+ /* Big-endian values sit at the right end of the buffer. In case of
+ registers whose sizes are smaller than sizeof (long), we must use a
+ padding to access them correctly. */
+ int size = register_size (regcache->tdesc, regno);
+
+ if (size < sizeof (long))
+ supply_register (regcache, regno, buf + sizeof (long) - size);
+ else
+ supply_register (regcache, regno, buf);
+ }
+ else
+ perror_with_name ("Unexpected byte order");
+}
+
+
+#define INSTR_SC 0x44000002
+#define NR_spu_run 0x0116
+
+/* If the PPU thread is currently stopped on a spu_run system call,
+ return to FD and ADDR the file handle and NPC parameter address
+ used with the system call. Return non-zero if successful. */
+static int
+parse_spufs_run (struct regcache *regcache, int *fd, CORE_ADDR *addr)
+{
+ CORE_ADDR curr_pc;
+ int curr_insn;
+ int curr_r0;
+
+ if (register_size (regcache->tdesc, 0) == 4)
+ {
+ unsigned int pc, r0, r3, r4;
+ collect_register_by_name (regcache, "pc", &pc);
+ collect_register_by_name (regcache, "r0", &r0);
+ collect_register_by_name (regcache, "orig_r3", &r3);
+ collect_register_by_name (regcache, "r4", &r4);
+ curr_pc = (CORE_ADDR) pc;
+ curr_r0 = (int) r0;
+ *fd = (int) r3;
+ *addr = (CORE_ADDR) r4;
+ }
+ else
+ {
+ unsigned long pc, r0, r3, r4;
+ collect_register_by_name (regcache, "pc", &pc);
+ collect_register_by_name (regcache, "r0", &r0);
+ collect_register_by_name (regcache, "orig_r3", &r3);
+ collect_register_by_name (regcache, "r4", &r4);
+ curr_pc = (CORE_ADDR) pc;
+ curr_r0 = (int) r0;
+ *fd = (int) r3;
+ *addr = (CORE_ADDR) r4;
+ }
+
+ /* Fetch instruction preceding current NIP. */
+ if ((*the_target->read_memory) (curr_pc - 4,
+ (unsigned char *) &curr_insn, 4) != 0)
+ return 0;
+ /* It should be a "sc" instruction. */
+ if (curr_insn != INSTR_SC)
+ return 0;
+ /* System call number should be NR_spu_run. */
+ if (curr_r0 != NR_spu_run)
+ return 0;
+
+ return 1;
+}
+
static CORE_ADDR
-ppc_get_pc (void)
+ppc_get_pc (struct regcache *regcache)
{
- unsigned long pc;
+ CORE_ADDR addr;
+ int fd;
- collect_register_by_name ("pc", &pc);
- return (CORE_ADDR) pc;
+ if (parse_spufs_run (regcache, &fd, &addr))
+ {
+ unsigned int pc;
+ (*the_target->read_memory) (addr, (unsigned char *) &pc, 4);
+ return ((CORE_ADDR)1 << 63)
+ | ((CORE_ADDR)fd << 32) | (CORE_ADDR) (pc - 4);
+ }
+ else if (register_size (regcache->tdesc, 0) == 4)
+ {
+ unsigned int pc;
+ collect_register_by_name (regcache, "pc", &pc);
+ return (CORE_ADDR) pc;
+ }
+ else
+ {
+ unsigned long pc;
+ collect_register_by_name (regcache, "pc", &pc);
+ return (CORE_ADDR) pc;
+ }
}
static void
-ppc_set_pc (CORE_ADDR pc)
+ppc_set_pc (struct regcache *regcache, CORE_ADDR pc)
{
- unsigned long newpc = pc;
+ CORE_ADDR addr;
+ int fd;
- supply_register_by_name ("pc", &newpc);
+ if (parse_spufs_run (regcache, &fd, &addr))
+ {
+ unsigned int newpc = pc;
+ (*the_target->write_memory) (addr, (unsigned char *) &newpc, 4);
+ }
+ else if (register_size (regcache->tdesc, 0) == 4)
+ {
+ unsigned int newpc = pc;
+ supply_register_by_name (regcache, "pc", &newpc);
+ }
+ else
+ {
+ unsigned long newpc = pc;
+ supply_register_by_name (regcache, "pc", &newpc);
+ }
}
-/* Correct in either endianness. Note that this file is
- for PowerPC only, not PowerPC64.
+
+static int
+ppc_get_hwcap (unsigned long *valp)
+{
+ const struct target_desc *tdesc = current_process ()->tdesc;
+ int wordsize = register_size (tdesc, 0);
+ unsigned char *data = (unsigned char *) alloca (2 * wordsize);
+ int offset = 0;
+
+ while ((*the_target->read_auxv) (offset, data, 2 * wordsize) == 2 * wordsize)
+ {
+ if (wordsize == 4)
+ {
+ unsigned int *data_p = (unsigned int *)data;
+ if (data_p[0] == AT_HWCAP)
+ {
+ *valp = data_p[1];
+ return 1;
+ }
+ }
+ else
+ {
+ unsigned long *data_p = (unsigned long *)data;
+ if (data_p[0] == AT_HWCAP)
+ {
+ *valp = data_p[1];
+ return 1;
+ }
+ }
+
+ offset += 2 * wordsize;
+ }
+
+ *valp = 0;
+ return 0;
+}
+
+#ifndef __powerpc64__
+static int ppc_regmap_adjusted;
+#endif
+
+
+/* Correct in either endianness.
This instruction is "twge r2, r2", which GDB uses as a software
breakpoint. */
-static const unsigned long ppc_breakpoint = 0x7d821008;
+static const unsigned int ppc_breakpoint = 0x7d821008;
#define ppc_breakpoint_len 4
+/* Implementation of linux_target_ops method "sw_breakpoint_from_kind". */
+
+static const gdb_byte *
+ppc_sw_breakpoint_from_kind (int kind, int *size)
+{
+ *size = ppc_breakpoint_len;
+ return (const gdb_byte *) &ppc_breakpoint;
+}
+
static int
ppc_breakpoint_at (CORE_ADDR where)
{
- unsigned long insn;
+ unsigned int insn;
+
+ if (where & ((CORE_ADDR)1 << 63))
+ {
+ char mem_annex[32];
+ sprintf (mem_annex, "%d/mem", (int)((where >> 32) & 0x7fffffff));
+ (*the_target->qxfer_spu) (mem_annex, (unsigned char *) &insn,
+ NULL, where & 0xffffffff, 4);
+ if (insn == 0x3fff)
+ return 1;
+ }
+ else
+ {
+ (*the_target->read_memory) (where, (unsigned char *) &insn, 4);
+ if (insn == ppc_breakpoint)
+ return 1;
+ /* If necessary, recognize more trap instructions here. GDB only uses
+ the one. */
+ }
- (*the_target->read_memory) (where, (char *) &insn, 4);
- if (insn == ppc_breakpoint)
- return 1;
- /* If necessary, recognize more trap instructions here. GDB only uses the
- one. */
return 0;
}
+/* Provide only a fill function for the general register set. ps_lgetregs
+ will use this for NPTL support. */
+
+static void ppc_fill_gregset (struct regcache *regcache, void *buf)
+{
+ int i;
+
+ for (i = 0; i < 32; i++)
+ ppc_collect_ptrace_register (regcache, i, (char *) buf + ppc_regmap[i]);
+
+ for (i = 64; i < 70; i++)
+ ppc_collect_ptrace_register (regcache, i, (char *) buf + ppc_regmap[i]);
+
+ for (i = 71; i < 73; i++)
+ ppc_collect_ptrace_register (regcache, i, (char *) buf + ppc_regmap[i]);
+}
+
+#define SIZEOF_VSXREGS 32*8
+
+static void
+ppc_fill_vsxregset (struct regcache *regcache, void *buf)
+{
+ int i, base;
+ char *regset = (char *) buf;
+
+ if (!(ppc_hwcap & PPC_FEATURE_HAS_VSX))
+ return;
+
+ base = find_regno (regcache->tdesc, "vs0h");
+ for (i = 0; i < 32; i++)
+ collect_register (regcache, base + i, ®set[i * 8]);
+}
+
+static void
+ppc_store_vsxregset (struct regcache *regcache, const void *buf)
+{
+ int i, base;
+ const char *regset = (const char *) buf;
+
+ if (!(ppc_hwcap & PPC_FEATURE_HAS_VSX))
+ return;
+
+ base = find_regno (regcache->tdesc, "vs0h");
+ for (i = 0; i < 32; i++)
+ supply_register (regcache, base + i, ®set[i * 8]);
+}
+
+#define SIZEOF_VRREGS 33*16+4
+
+static void
+ppc_fill_vrregset (struct regcache *regcache, void *buf)
+{
+ int i, base;
+ char *regset = (char *) buf;
+
+ if (!(ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC))
+ return;
+
+ base = find_regno (regcache->tdesc, "vr0");
+ for (i = 0; i < 32; i++)
+ collect_register (regcache, base + i, ®set[i * 16]);
+
+ collect_register_by_name (regcache, "vscr", ®set[32 * 16 + 12]);
+ collect_register_by_name (regcache, "vrsave", ®set[33 * 16]);
+}
+
+static void
+ppc_store_vrregset (struct regcache *regcache, const void *buf)
+{
+ int i, base;
+ const char *regset = (const char *) buf;
+
+ if (!(ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC))
+ return;
+
+ base = find_regno (regcache->tdesc, "vr0");
+ for (i = 0; i < 32; i++)
+ supply_register (regcache, base + i, ®set[i * 16]);
+
+ supply_register_by_name (regcache, "vscr", ®set[32 * 16 + 12]);
+ supply_register_by_name (regcache, "vrsave", ®set[33 * 16]);
+}
+
+struct gdb_evrregset_t
+{
+ unsigned long evr[32];
+ unsigned long long acc;
+ unsigned long spefscr;
+};
+
+static void
+ppc_fill_evrregset (struct regcache *regcache, void *buf)
+{
+ int i, ev0;
+ struct gdb_evrregset_t *regset = (struct gdb_evrregset_t *) buf;
+
+ if (!(ppc_hwcap & PPC_FEATURE_HAS_SPE))
+ return;
+
+ ev0 = find_regno (regcache->tdesc, "ev0h");
+ for (i = 0; i < 32; i++)
+ collect_register (regcache, ev0 + i, ®set->evr[i]);
+
+ collect_register_by_name (regcache, "acc", ®set->acc);
+ collect_register_by_name (regcache, "spefscr", ®set->spefscr);
+}
+
+static void
+ppc_store_evrregset (struct regcache *regcache, const void *buf)
+{
+ int i, ev0;
+ const struct gdb_evrregset_t *regset = (const struct gdb_evrregset_t *) buf;
+
+ if (!(ppc_hwcap & PPC_FEATURE_HAS_SPE))
+ return;
+
+ ev0 = find_regno (regcache->tdesc, "ev0h");
+ for (i = 0; i < 32; i++)
+ supply_register (regcache, ev0 + i, ®set->evr[i]);
+
+ supply_register_by_name (regcache, "acc", ®set->acc);
+ supply_register_by_name (regcache, "spefscr", ®set->spefscr);
+}
+
+static struct regset_info ppc_regsets[] = {
+ /* List the extra register sets before GENERAL_REGS. That way we will
+ 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, 0, SIZEOF_VSXREGS, EXTENDED_REGS,
+ ppc_fill_vsxregset, ppc_store_vsxregset },
+ { PTRACE_GETVRREGS, PTRACE_SETVRREGS, 0, SIZEOF_VRREGS, EXTENDED_REGS,
+ ppc_fill_vrregset, ppc_store_vrregset },
+ { PTRACE_GETEVRREGS, PTRACE_SETEVRREGS, 0, 32 * 4 + 8 + 4, EXTENDED_REGS,
+ ppc_fill_evrregset, ppc_store_evrregset },
+ { 0, 0, 0, 0, GENERAL_REGS, ppc_fill_gregset, NULL },
+ NULL_REGSET
+};
+
+static struct usrregs_info ppc_usrregs_info =
+ {
+ ppc_num_regs,
+ ppc_regmap,
+ };
+
+static struct regsets_info ppc_regsets_info =
+ {
+ ppc_regsets, /* regsets */
+ 0, /* num_regsets */
+ NULL, /* disabled_regsets */
+ };
+
+static struct regs_info regs_info =
+ {
+ NULL, /* regset_bitmap */
+ &ppc_usrregs_info,
+ &ppc_regsets_info
+ };
+
+static const struct regs_info *
+ppc_regs_info (void)
+{
+ return ®s_info;
+}
+
+static void
+ppc_arch_setup (void)
+{
+ const struct target_desc *tdesc;
+#ifdef __powerpc64__
+ long msr;
+ struct regcache *regcache;
+
+ /* On a 64-bit host, assume 64-bit inferior process with no
+ AltiVec registers. Reset ppc_hwcap to ensure that the
+ collect_register call below does not fail. */
+ tdesc = tdesc_powerpc_64l;
+ current_process ()->tdesc = tdesc;
+ ppc_hwcap = 0;
+
+ regcache = new_register_cache (tdesc);
+ fetch_inferior_registers (regcache, find_regno (tdesc, "msr"));
+ collect_register_by_name (regcache, "msr", &msr);
+ free_register_cache (regcache);
+ if (ppc64_64bit_inferior_p (msr))
+ {
+ ppc_get_hwcap (&ppc_hwcap);
+ if (ppc_hwcap & PPC_FEATURE_CELL)
+ tdesc = tdesc_powerpc_cell64l;
+ else if (ppc_hwcap & PPC_FEATURE_HAS_VSX)
+ {
+ /* Power ISA 2.05 (implemented by Power 6 and newer processors)
+ increases the FPSCR from 32 bits to 64 bits. Even though Power 7
+ supports this ISA version, it doesn't have PPC_FEATURE_ARCH_2_05
+ set, only PPC_FEATURE_ARCH_2_06. Since for now the only bits
+ used in the higher half of the register are for Decimal Floating
+ Point, we check if that feature is available to decide the size
+ of the FPSCR. */
+ if (ppc_hwcap & PPC_FEATURE_HAS_DFP)
+ tdesc = tdesc_powerpc_isa205_vsx64l;
+ else
+ tdesc = tdesc_powerpc_vsx64l;
+ }
+ else if (ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)
+ {
+ if (ppc_hwcap & PPC_FEATURE_HAS_DFP)
+ tdesc = tdesc_powerpc_isa205_altivec64l;
+ else
+ tdesc = tdesc_powerpc_altivec64l;
+ }
+
+ current_process ()->tdesc = tdesc;
+ return;
+ }
+#endif
+
+ /* OK, we have a 32-bit inferior. */
+ tdesc = tdesc_powerpc_32l;
+ current_process ()->tdesc = tdesc;
+
+ ppc_get_hwcap (&ppc_hwcap);
+ if (ppc_hwcap & PPC_FEATURE_CELL)
+ tdesc = tdesc_powerpc_cell32l;
+ else if (ppc_hwcap & PPC_FEATURE_HAS_VSX)
+ {
+ if (ppc_hwcap & PPC_FEATURE_HAS_DFP)
+ tdesc = tdesc_powerpc_isa205_vsx32l;
+ else
+ tdesc = tdesc_powerpc_vsx32l;
+ }
+ else if (ppc_hwcap & PPC_FEATURE_HAS_ALTIVEC)
+ {
+ if (ppc_hwcap & PPC_FEATURE_HAS_DFP)
+ tdesc = tdesc_powerpc_isa205_altivec32l;
+ else
+ tdesc = tdesc_powerpc_altivec32l;
+ }
+
+ /* On 32-bit machines, check for SPE registers.
+ Set the low target's regmap field as appropriately. */
+#ifndef __powerpc64__
+ if (ppc_hwcap & PPC_FEATURE_HAS_SPE)
+ tdesc = tdesc_powerpc_e500l;
+
+ if (!ppc_regmap_adjusted)
+ {
+ if (ppc_hwcap & PPC_FEATURE_HAS_SPE)
+ ppc_usrregs_info.regmap = ppc_regmap_e500;
+
+ /* If the FPSCR is 64-bit wide, we need to fetch the whole
+ 64-bit slot and not just its second word. The PT_FPSCR
+ supplied in a 32-bit GDB compilation doesn't reflect
+ this. */
+ if (register_size (tdesc, 70) == 8)
+ ppc_regmap[70] = (48 + 2*32) * sizeof (long);
+
+ ppc_regmap_adjusted = 1;
+ }
+#endif
+ current_process ()->tdesc = tdesc;
+}
+
struct linux_target_ops the_low_target = {
- ppc_num_regs,
- ppc_regmap,
+ ppc_arch_setup,
+ ppc_regs_info,
ppc_cannot_fetch_register,
ppc_cannot_store_register,
+ NULL, /* fetch_register */
ppc_get_pc,
ppc_set_pc,
- (const char *) &ppc_breakpoint,
- ppc_breakpoint_len,
+ NULL, /* breakpoint_kind_from_pc */
+ ppc_sw_breakpoint_from_kind,
NULL,
0,
ppc_breakpoint_at,
+ NULL, /* supports_z_point_type */
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ ppc_collect_ptrace_register,
+ ppc_supply_ptrace_register,
};
+
+void
+initialize_low_arch (void)
+{
+ /* Initialize the Linux target descriptions. */
+
+ init_registers_powerpc_32l ();
+ init_registers_powerpc_altivec32l ();
+ init_registers_powerpc_cell32l ();
+ init_registers_powerpc_vsx32l ();
+ init_registers_powerpc_isa205_32l ();
+ init_registers_powerpc_isa205_altivec32l ();
+ init_registers_powerpc_isa205_vsx32l ();
+ init_registers_powerpc_e500l ();
+ init_registers_powerpc_64l ();
+ init_registers_powerpc_altivec64l ();
+ init_registers_powerpc_cell64l ();
+ init_registers_powerpc_vsx64l ();
+ init_registers_powerpc_isa205_64l ();
+ init_registers_powerpc_isa205_altivec64l ();
+ init_registers_powerpc_isa205_vsx64l ();
+
+ initialize_regsets_info (&ppc_regsets_info);
+}