[binutils-gdb] sim: v850: convert to sim-cpu

[Michael Frysinger <vapier at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=14c9ad2edb6e0bb0b560fa45699b83d85aa28b94

commit 14c9ad2edb6e0bb0b560fa45699b83d85aa28b94
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Mon Apr 13 02:11:24 2015 -0400

    sim: v850: convert to sim-cpu
    
    Make cpu allocation fully dynamic so we can leverage the common
    sim-cpu and its APIs.

Diff:
---
 sim/v850/ChangeLog   | 11 +++++++++++
 sim/v850/Makefile.in |  1 +
 sim/v850/interp.c    | 31 +++++++++++++++++++++++++------
 sim/v850/sim-main.h  |  8 +++++---
 4 files changed, 42 insertions(+), 9 deletions(-)

diff --git a/sim/v850/ChangeLog b/sim/v850/ChangeLog
index 21518e0..9a5e907 100644
--- a/sim/v850/ChangeLog
+++ b/sim/v850/ChangeLog
@@ -1,3 +1,14 @@
+2015-04-13  Mike Frysinger  <vapier@gentoo.org>
+
+	* Makefile.in (SIM_OBJS): Add sim-cpu.o.
+	* interp.c (v850_pc_get, v850_pc_set): New functions.
+	(sim_open): Declare new local var i.  Call sim_cpu_alloc_all.
+	Call CPU_PC_FETCH & CPU_PC_STORE for all cpus.
+	(sim_pc_get): Delete.
+	* sim-main.h (SIM_CPU): Define.
+	(struct sim_state): Change cpu to an array of pointers.
+	(STATE_CPU): Drop &.
+
 2015-04-06  Mike Frysinger  <vapier@gentoo.org>
 
 	* Makefile.in (SIM_OBJS): Delete sim-engine.o and sim-hrw.o.
diff --git a/sim/v850/Makefile.in b/sim/v850/Makefile.in
index 726ed5e..e78fda9 100644
--- a/sim/v850/Makefile.in
+++ b/sim/v850/Makefile.in
@@ -23,6 +23,7 @@ SIM_OBJS = \
 	$(SIM_NEW_COMMON_OBJS) \
 	simops.o interp.o \
 	itable.o semantics.o idecode.o icache.o engine.o irun.o support.o \
+	sim-cpu.o \
 	sim-hload.o \
 	sim-resume.o \
 	sim-reason.o \
diff --git a/sim/v850/interp.c b/sim/v850/interp.c
index 04f3f2f..36da132 100644
--- a/sim/v850/interp.c
+++ b/sim/v850/interp.c
@@ -184,6 +184,17 @@ get_insn_name (sim_cpu *cpu, int i)
 
 uint32 OP[4];
 
+static sim_cia
+v850_pc_get (sim_cpu *cpu)
+{
+  return PC;
+}
+
+static void
+v850_pc_set (sim_cpu *cpu, sim_cia pc)
+{
+  PC = pc;
+}
 
 SIM_DESC
 sim_open (SIM_OPEN_KIND    kind,
@@ -191,11 +202,16 @@ sim_open (SIM_OPEN_KIND    kind,
 	  struct bfd *     abfd,
 	  char **          argv)
 {
+  int i;
   SIM_DESC sd = sim_state_alloc (kind, cb);
   int mach;
 
   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 
+  /* The cpu data is kept in a separately allocated chunk of memory.  */
+  if (sim_cpu_alloc_all (sd, 1, /*cgen_cpu_max_extra_bytes ()*/0) != SIM_RC_OK)
+    return 0;
+
   /* for compatibility */
   simulator = sd;
 
@@ -283,6 +299,15 @@ sim_open (SIM_OPEN_KIND    kind,
       break;
     }
 
+  /* CPU specific initialization.  */
+  for (i = 0; i < MAX_NR_PROCESSORS; ++i)
+    {
+      SIM_CPU *cpu = STATE_CPU (sd, i);
+
+      CPU_PC_FETCH (cpu) = v850_pc_get;
+      CPU_PC_STORE (cpu) = v850_pc_set;
+    }
+
   return sd;
 }
 
@@ -324,9 +349,3 @@ sim_store_register (SIM_DESC        sd,
   State.regs[rn] = T2H_4 (*(unsigned32 *) memory);
   return length;
 }
-
-sim_cia
-sim_pc_get (sim_cpu *cpu)
-{
-  return PC;
-}
diff --git a/sim/v850/sim-main.h b/sim/v850/sim-main.h
index 505b19e..102c917 100644
--- a/sim/v850/sim-main.h
+++ b/sim/v850/sim-main.h
@@ -19,6 +19,8 @@
 
 typedef address_word sim_cia;
 
+typedef struct _sim_cpu SIM_CPU;
+
 #include "sim-base.h"
 
 #include "simops.h"
@@ -63,11 +65,11 @@ struct _sim_cpu
 #define CIA_SET(CPU,VAL) ((CPU)->reg.pc = (VAL))
 
 struct sim_state {
-  sim_cpu cpu[MAX_NR_PROCESSORS];
+  sim_cpu *cpu[MAX_NR_PROCESSORS];
 #if (WITH_SMP)
-#define STATE_CPU(sd,n) (&(sd)->cpu[n])
+#define STATE_CPU(sd,n) ((sd)->cpu[n])
 #else
-#define STATE_CPU(sd,n) (&(sd)->cpu[0])
+#define STATE_CPU(sd,n) ((sd)->cpu[0])
 #endif
 #if 0
   SIM_ADDR rom_size;