ChangeLog:

	* Makefile.in (ppc_linux_tdep_h): New macro.
	(powerpc_32l_c, powerpc_altivec32_c, powerpc_altivec32l_c): Likewise.
	(powerpc_64l_c, powerpc_altivec64_c, powerpc_altivec64l_c): Likewise.
	(powerpc_e500l_c): Likewise.
	(ppc-linux-nat.o): Update dependencies.
	(ppc-linux-tdep.o): Update dependencies.
	(rs6000-tdep.o): Update dependencies.

	* ppc-tdep.h (ppc_linux_memory_remove_breakpoint): Remove.
	(ppc_linux_svr4_fetch_link_map_offsets): Remove.
	(ppc_linux_gregset, ppc_linux_fpregset): Move to ppc-linux-tdep.h
	(ppc_supply_reg, ppc_collect_reg): Add prototypes.
	(tdesc_powerpc_e500): Remove.

	* rs6000.c: Include "features/rs6000/powerpc-altivec32.c"
	and "features/rs6000/powerpc-altivec64.c".
	(ppc_supply_reg, ppc_collect_reg): Make global.
	(variants): Use tdesc_powerpc_32 for "powerpc" and
	tdesc_powerpc_altivec64 for "powerpc64".
	(_initialize_rs6000_tdep): Initialize AltiVec descriptions.

	* ppc-linux-tdep.h: New file.

	* ppc-linux-tdep.c: Include "ppc-linux-tdep.c".
	Include "features/rs6000/powerpc-32l.c".
	Include "features/rs6000/powerpc-altivec32l.c".
	Include "features/rs6000/powerpc-64l.c".
	Include "features/rs6000/powerpc-altivec64l.c".
	Include "features/rs6000/powerpc-e500l.c".
	(ppc_linux_supply_gregset): New function.
	(ppc_linux_collect_gregset): Handle orig_r3 and trap registers.
	(ppc32_linux_gregset): Use ppc_linux_supply_gregset.
	(ppc64_linux_gregset): Likewise.
	(ppc_linux_sigtramp_cache): Handle orig_r3 and trap registers.
	(ppc_linux_trap_reg_p): New function.
	(ppc_linux_write_pc): New function.
	(ppc_linux_core_read_description): New function.
	(ppc_linux_init_abi): Install ppc_linux_write_pc and
	ppc_linux_core_read_description.  Install orig_r3 and trap
	registers if present in the target description.
	(_initialize_ppc_linux_tdep): Initialize Linux target descriptions.

	* ppc-linux-nat.c: Include "ppc-linux-tdep.h".
	(PT_ORIG_R3, PT_TRAP): Define if necessary.
	(ppc_register_u_addr): Handle orig_r3 and trap registers.
	(fetch_ppc_registers): Likewise.
	(store_ppc_registers): Likewise.
	(store_register): Likewise.
	(ppc_linux_read_description): Check whether AltiVec is supported.
	Check whether inferior is 32-bit or 64-bit.  Return the appropriate
	Linux target description.

	* features/Makefile (WHICH): Use rs6000/powerpc-32l and
	rs6000/powerpc-altivec32l instead of rs6000/powerpc-32.
	Use rs6000/powerpc-64l and rs6000/powerpc-altivec64l instead
	of rs6000/powerpc-64.  Use rs6000/powerpc-e500l instead of
	rs6000/powerpc-e500.  Update -expedite variables accordingly.

	* features/rs6000/power-spe.xml: Use regnum 73 for "acc".
	* features/rs6000/powerpc-32.xml: Do not include power-altivec.xml.
	* features/rs6000/powerpc-64.xml: Do not include power-altivec.xml.
	* features/rs6000/powerpc-e500.c: Regenerate.
	* features/rs6000/powerpc-32.c: Regenerate.
	* features/rs6000/powerpc-64.c: Regenerate.

	* features/rs6000/power-linux.xml: New file.
	* features/rs6000/power64-linux.xml: New file.
	* features/rs6000/powerpc-32l.xml: New file.
	* features/rs6000/powerpc-altivec32l.xml: New file.
	* features/rs6000/powerpc-64l.xml: New file.
	* features/rs6000/powerpc-altivec64l.xml: New file.
	* features/rs6000/powerpc-e500l.xml: New file.
	* features/rs6000/powerpc-32l.c: New (generated) file.
	* features/rs6000/powerpc-altivec32l.c: New (generated) file.
	* features/rs6000/powerpc-64l.c: New (generated) file.
	* features/rs6000/powerpc-altivec64l.c: New (generated) file.
	* features/rs6000/powerpc-e500l.xml: New (generated) file.

	* regformats/reg-ppc.dat: Remove.
	* regformats/reg-ppc64.dat: Remove.
	* regformats/rs6000/powerpc-32.dat: Remove.
	* regformats/rs6000/powerpc-64.dat: Remove.
	* regformats/rs6000/powerpc-e500.dat: Remove.
	* regformats/rs6000/powerpc-32l.dat: New (generated) file.
	* regformats/rs6000/powerpc-altivec32l.dat: New (generated) file.
	* regformats/rs6000/powerpc-64l.dat: New (generated) file.
	* regformats/rs6000/powerpc-altivec64l.dat: New (generated) file.
	* regformats/rs6000/powerpc-e500l.dat: New (generated) file.

gdbserver/ChangeLog:

	* configure.srv (powerpc*-*-linux*): Set srv_regobj to
	powerpc-32l.o, powerpc-altivec32l.o, powerpc-e500l.o,
	powerpc-64l.o, and powerpc-altivec64l.o.
	Remove rs6000/powerpc-32.xml, rs6000/powerpc-64.xml, and
	rs6000/powerpc-e500.xml; add rs6000/powerpc-32l.xml,
	rs6000/powerpc-altivec32l.xml, rs6000/powerpc-e500l.xml,
	rs6000/powerpc-64l.xml, rs6000/powerpc-altivec64l.xml,
	rs6000/power-linux.xml, and rs6000/power64-linux.xml
	to srv_xmlfiles.

	* Makefile.in (reg-ppc.o, reg-ppc.c): Remove, replace by ...
	(powerpc-32l.o, powerpc-32l.c): ... these new rules.
	(powerpc-32.o, powerpc-32.c): Remove, replace by ...
	(powerpc-altivec32l.o, powerpc-altivec32l.c): ... these new rules.
	(powerpc-e500.o, powerpc-e500.c): Remove, replace by ...
	(powerpc-e500l.o, powerpc-e500l.c): ... these new rules.
	(reg-ppc64.o, reg-ppc64.c): Remove, replace by ...
	(powerpc-64l.o, powerpc-64l.c): ... these new rules.
	(powerpc-64.o, powerpc-64.c): Remove, replace by ...
	(powerpc-altivec64l.o, powerpc-altivec64l.c): ... these new rules.
	(clean): Update.

	* linux-ppc-low.c (init_registers_ppc): Remove, replace by ...
	(init_registers_powerpc_32l): ... this new prototype.
	(init_registers_powerpc_32): Remove, replace by ...
	(init_registers_powerpc_altivec32l): ... this new prototype.
	(init_registers_powerpc_e500): Remove, replace by ...
	(init_registers_powerpc_e500l): ... this new prototype.
	(init_registers_ppc64): Remove, replace by ...
	(init_registers_powerpc_64l): ... this new prototype.
	(init_registers_powerpc_64): Remove, replace by ...
	(init_registers_powerpc_altivec64l): ... this new prototype.
	(ppc_num_regs): Set to 73.
	(PT_ORIG_R3, PT_TRAP): Define if necessary.
	(ppc_regmap, ppc_regmap_e500): Add values for orig_r3 and trap.
	(ppc_cannot_store_register): Handle orig_r3 and trap.
	(ppc_arch_setup): Update init_registers_... calls.
	(ppc_fill_gregset): Handle orig_r3 and trap.

	* inferiors.c (clear_inferiors): Reset current_inferior.

1 files changed, 66 insertions, 17 deletions

diff --git a/gdb/ppc-linux-nat.c b/gdb/ppc-linux-nat.c
index 548658822b8..f9ea8389614 100644
--- a/gdb/ppc-linux-nat.c
+++ b/gdb/ppc-linux-nat.c
@@ -42,6 +42,15 @@
 /* Prototypes for supply_gregset etc. */
 #include "gregset.h"
 #include "ppc-tdep.h"
+#include "ppc-linux-tdep.h"
+
+/* This sometimes isn't defined.  */
+#ifndef PT_ORIG_R3
+#define PT_ORIG_R3 34
+#endif
+#ifndef PT_TRAP
+#define PT_TRAP 40
+#endif
 
 /* Glibc's headers don't define PTRACE_GETVRREGS so we cannot use a
    configure time check.  Some older glibc's (for instance 2.2.1)
@@ -200,6 +209,10 @@ ppc_register_u_addr (struct gdbarch *gdbarch, int regno)
 #endif
   if (regno == tdep->ppc_ps_regnum)
     u_addr = PT_MSR * wordsize;
+  if (regno == PPC_ORIG_R3_REGNUM)
+    u_addr = PT_ORIG_R3 * wordsize;
+  if (regno == PPC_TRAP_REGNUM)
+    u_addr = PT_TRAP * wordsize;
   if (tdep->ppc_fpscr_regnum >= 0
       && regno == tdep->ppc_fpscr_regnum)
     {
@@ -476,6 +489,11 @@ fetch_ppc_registers (struct regcache *regcache, int tid)
     fetch_register (regcache, tid, tdep->ppc_xer_regnum);
   if (tdep->ppc_mq_regnum != -1)
     fetch_register (regcache, tid, tdep->ppc_mq_regnum);
+  if (ppc_linux_trap_reg_p (gdbarch))
+    {
+      fetch_register (regcache, tid, PPC_ORIG_R3_REGNUM);
+      fetch_register (regcache, tid, PPC_TRAP_REGNUM);
+    }
   if (tdep->ppc_fpscr_regnum != -1)
     fetch_register (regcache, tid, tdep->ppc_fpscr_regnum);
   if (have_ptrace_getvrregs)
@@ -676,9 +694,12 @@ store_register (const struct regcache *regcache, int tid, int regno)
       regaddr += sizeof (long);
 
       if (errno == EIO 
-          && regno == tdep->ppc_fpscr_regnum)
+          && (regno == tdep->ppc_fpscr_regnum
+	      || regno == PPC_ORIG_R3_REGNUM
+	      || regno == PPC_TRAP_REGNUM))
 	{
-	  /* Some older kernel versions don't allow fpscr to be written.  */
+	  /* Some older kernel versions don't allow fpscr, orig_r3
+	     or trap to be written.  */
 	  continue;
 	}
 
@@ -765,6 +786,11 @@ store_ppc_registers (const struct regcache *regcache, int tid)
     store_register (regcache, tid, tdep->ppc_mq_regnum);
   if (tdep->ppc_fpscr_regnum != -1)
     store_register (regcache, tid, tdep->ppc_fpscr_regnum);
+  if (ppc_linux_trap_reg_p (gdbarch))
+    {
+      store_register (regcache, tid, PPC_ORIG_R3_REGNUM);
+      store_register (regcache, tid, PPC_TRAP_REGNUM);
+    }
   if (have_ptrace_getvrregs)
     if (tdep->ppc_vr0_regnum != -1 && tdep->ppc_vrsave_regnum != -1)
       store_altivec_registers (regcache, tid);
@@ -962,28 +988,51 @@ fill_fpregset (const struct regcache *regcache,
 static const struct target_desc *
 ppc_linux_read_description (struct target_ops *ops)
 {
+  int altivec = 0;
+
+  int tid = TIDGET (inferior_ptid);
+  if (tid == 0)
+    tid = PIDGET (inferior_ptid);
+
   if (have_ptrace_getsetevrregs)
     {
       struct gdb_evrregset_t evrregset;
-      int tid = TIDGET (inferior_ptid);
-
-      if (tid == 0)
-	tid = PIDGET (inferior_ptid);
 
       if (ptrace (PTRACE_GETEVRREGS, tid, 0, &evrregset) >= 0)
-        return tdesc_powerpc_e500;
-      else
-        {
-          /* EIO means that the PTRACE_GETEVRREGS request isn't supported.  */
-          if (errno == EIO)
-	    return NULL;
-	  else
-            /* Anything else needs to be reported.  */
-            perror_with_name (_("Unable to fetch SPE registers"));
-	}
+        return tdesc_powerpc_e500l;
+
+      /* EIO means that the PTRACE_GETEVRREGS request isn't supported.
+	 Anything else needs to be reported.  */
+      else if (errno != EIO)
+	perror_with_name (_("Unable to fetch SPE registers"));
+    }
+
+  if (have_ptrace_getvrregs)
+    {
+      gdb_vrregset_t vrregset;
+
+      if (ptrace (PTRACE_GETVRREGS, tid, 0, &vrregset) >= 0)
+        altivec = 1;
+
+      /* EIO means that the PTRACE_GETVRREGS request isn't supported.
+	 Anything else needs to be reported.  */
+      else if (errno != EIO)
+	perror_with_name (_("Unable to fetch AltiVec registers"));
     }
 
-  return NULL;
+  /* Check for 64-bit inferior process.  This is the case when the host is
+     64-bit, and in addition the top bit of the MSR register is set.  */
+#ifdef __powerpc64__
+  {
+    long msr;
+    errno = 0;
+    msr = (long) ptrace (PTRACE_PEEKUSER, tid, PT_MSR * 8, 0);
+    if (errno == 0 && msr < 0)
+      return altivec? tdesc_powerpc_altivec64l : tdesc_powerpc_64l;
+  }
+#endif
+
+  return altivec? tdesc_powerpc_altivec32l : tdesc_powerpc_32l;
 }
 
 void _initialize_ppc_linux_nat (void);