Merge "These changes are the raw update to qemu-2.6."

6 files changed, 59 insertions, 81 deletions

diff --git a/qemu/target-moxie/cpu.c b/qemu/target-moxie/cpu.c
index 6b035aaab..b4ee84e90 100644
--- a/qemu/target-moxie/cpu.c
+++ b/qemu/target-moxie/cpu.c
@@ -17,6 +17,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "qemu/osdep.h"
+#include "qapi/error.h"
 #include "cpu.h"
 #include "qemu-common.h"
 #include "migration/vmstate.h"
@@ -48,6 +50,12 @@ static void moxie_cpu_reset(CPUState *s)
     tlb_flush(s, 1);
 }
 
+static void moxie_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
+{
+    info->mach = bfd_arch_moxie;
+    info->print_insn = print_insn_moxie;
+}
+
 static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
 {
     CPUState *cs = CPU(dev);
@@ -114,6 +122,14 @@ static void moxie_cpu_class_init(ObjectClass *oc, void *data)
     cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
     cc->vmsd = &vmstate_moxie_cpu;
 #endif
+    cc->disas_set_info = moxie_cpu_disas_set_info;
+
+    /*
+     * Reason: moxie_cpu_initfn() calls cpu_exec_init(), which saves
+     * the object in cpus -> dangling pointer after final
+     * object_unref().
+     */
+    dc->cannot_destroy_with_object_finalize_yet = true;
 }
 
 static void moxielite_initfn(Object *obj)
diff --git a/qemu/target-moxie/cpu.h b/qemu/target-moxie/cpu.h
index 29572aaba..4ee207796 100644
--- a/qemu/target-moxie/cpu.h
+++ b/qemu/target-moxie/cpu.h
@@ -19,15 +19,12 @@
 #ifndef _CPU_MOXIE_H
 #define _CPU_MOXIE_H
 
-#include "config.h"
 #include "qemu-common.h"
 
 #define TARGET_LONG_BITS 32
 
 #define CPUArchState struct CPUMoxieState
 
-#define ELF_MACHINE     0xFEED /* EM_MOXIE */
-
 #define MOXIE_EX_DIV0        0
 #define MOXIE_EX_BAD         1
 #define MOXIE_EX_IRQ         2
@@ -124,10 +121,9 @@ int cpu_moxie_signal_handler(int host_signum, void *pinfo,
 #define cpu_init(cpu_model) CPU(cpu_moxie_init(cpu_model))
 
 #define cpu_exec cpu_moxie_exec
-#define cpu_gen_code cpu_moxie_gen_code
 #define cpu_signal_handler cpu_moxie_signal_handler
 
-static inline int cpu_mmu_index(CPUMoxieState *env)
+static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
 {
     return 0;
 }
diff --git a/qemu/target-moxie/helper.c b/qemu/target-moxie/helper.c
index 6c98965b9..d51e9b9cc 100644
--- a/qemu/target-moxie/helper.c
+++ b/qemu/target-moxie/helper.c
@@ -17,11 +17,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
+#include "qemu/osdep.h"
 
-#include "config.h"
 #include "cpu.h"
 #include "mmu.h"
 #include "exec/exec-all.h"
@@ -56,7 +53,7 @@ void helper_raise_exception(CPUMoxieState *env, int ex)
     /* Stash the address where the exception occurred.  */
     cpu_restore_state(cs, GETPC());
     env->sregs[5] = env->pc;
-    /* Jump the the exception handline routine.  */
+    /* Jump to the exception handline routine.  */
     env->pc = env->sregs[1];
     cpu_loop_exit(cs);
 }
diff --git a/qemu/target-moxie/machine.c b/qemu/target-moxie/machine.c
index b9316f0ec..912b79139 100644
--- a/qemu/target-moxie/machine.c
+++ b/qemu/target-moxie/machine.c
@@ -1,3 +1,4 @@
+#include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "hw/boards.h"
 #include "machine.h"
diff --git a/qemu/target-moxie/mmu.c b/qemu/target-moxie/mmu.c
index 5217eedac..9203330b3 100644
--- a/qemu/target-moxie/mmu.c
+++ b/qemu/target-moxie/mmu.c
@@ -17,11 +17,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
+#include "qemu/osdep.h"
 
-#include "config.h"
 #include "cpu.h"
 #include "mmu.h"
 #include "exec/exec-all.h"
diff --git a/qemu/target-moxie/translate.c b/qemu/target-moxie/translate.c
index e3e913906..a437e2ab6 100644
--- a/qemu/target-moxie/translate.c
+++ b/qemu/target-moxie/translate.c
@@ -21,12 +21,7 @@
  *    http://moxielogic.org/wiki
  */
 
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <inttypes.h>
-#include <assert.h>
+#include "qemu/osdep.h"
 
 #include "cpu.h"
 #include "exec/exec-all.h"
@@ -36,6 +31,7 @@
 
 #include "exec/helper-proto.h"
 #include "exec/helper-gen.h"
+#include "exec/log.h"
 
 /* This is the state at translation time.  */
 typedef struct DisasContext {
@@ -60,7 +56,7 @@ enum {
 
 static TCGv cpu_pc;
 static TCGv cpu_gregs[16];
-static TCGv_ptr cpu_env;
+static TCGv_env cpu_env;
 static TCGv cc_a, cc_b;
 
 #include "exec/gen-icount.h"
@@ -110,16 +106,16 @@ void moxie_translate_init(void)
         return;
     }
     cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
-    cpu_pc = tcg_global_mem_new_i32(TCG_AREG0,
+    cpu_pc = tcg_global_mem_new_i32(cpu_env,
                                     offsetof(CPUMoxieState, pc), "$pc");
     for (i = 0; i < 16; i++)
-        cpu_gregs[i] = tcg_global_mem_new_i32(TCG_AREG0,
+        cpu_gregs[i] = tcg_global_mem_new_i32(cpu_env,
                                               offsetof(CPUMoxieState, gregs[i]),
                                               gregnames[i]);
 
-    cc_a = tcg_global_mem_new_i32(TCG_AREG0,
+    cc_a = tcg_global_mem_new_i32(cpu_env,
                                   offsetof(CPUMoxieState, cc_a), "cc_a");
-    cc_b = tcg_global_mem_new_i32(TCG_AREG0,
+    cc_b = tcg_global_mem_new_i32(cpu_env,
                                   offsetof(CPUMoxieState, cc_b), "cc_b");
 
     done_init = 1;
@@ -154,10 +150,6 @@ static int decode_opc(MoxieCPU *cpu, DisasContext *ctx)
     /* Set the default instruction length.  */
     int length = 2;
 
-    if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
-        tcg_gen_debug_insn_start(ctx->pc);
-    }
-
     /* Examine the 16-bit opcode.  */
     opcode = ctx->opcode;
 
@@ -820,17 +812,13 @@ static int decode_opc(MoxieCPU *cpu, DisasContext *ctx)
 }
 
 /* generate intermediate code for basic block 'tb'.  */
-static inline void
-gen_intermediate_code_internal(MoxieCPU *cpu, TranslationBlock *tb,
-                               bool search_pc)
+void gen_intermediate_code(CPUMoxieState *env, struct TranslationBlock *tb)
 {
+    MoxieCPU *cpu = moxie_env_get_cpu(env);
     CPUState *cs = CPU(cpu);
     DisasContext ctx;
     target_ulong pc_start;
-    CPUBreakpoint *bp;
-    int j, lj = -1;
-    CPUMoxieState *env = &cpu->env;
-    int num_insns;
+    int num_insns, max_insns;
 
     pc_start = tb->pc;
     ctx.pc = pc_start;
@@ -840,40 +828,40 @@ gen_intermediate_code_internal(MoxieCPU *cpu, TranslationBlock *tb,
     ctx.singlestep_enabled = 0;
     ctx.bstate = BS_NONE;
     num_insns = 0;
+    max_insns = tb->cflags & CF_COUNT_MASK;
+    if (max_insns == 0) {
+        max_insns = CF_COUNT_MASK;
+    }
+    if (max_insns > TCG_MAX_INSNS) {
+        max_insns = TCG_MAX_INSNS;
+    }
 
     gen_tb_start(tb);
     do {
-        if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
-            QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
-                if (ctx.pc == bp->pc) {
-                    tcg_gen_movi_i32(cpu_pc, ctx.pc);
-                    gen_helper_debug(cpu_env);
-                    ctx.bstate = BS_EXCP;
-                    goto done_generating;
-                }
-            }
-        }
+        tcg_gen_insn_start(ctx.pc);
+        num_insns++;
 
-        if (search_pc) {
-            j = tcg_op_buf_count();
-            if (lj < j) {
-                lj++;
-                while (lj < j) {
-                    tcg_ctx.gen_opc_instr_start[lj++] = 0;
-                }
-            }
-            tcg_ctx.gen_opc_pc[lj] = ctx.pc;
-            tcg_ctx.gen_opc_instr_start[lj] = 1;
-            tcg_ctx.gen_opc_icount[lj] = num_insns;
+        if (unlikely(cpu_breakpoint_test(cs, ctx.pc, BP_ANY))) {
+            tcg_gen_movi_i32(cpu_pc, ctx.pc);
+            gen_helper_debug(cpu_env);
+            ctx.bstate = BS_EXCP;
+            /* The address covered by the breakpoint must be included in
+               [tb->pc, tb->pc + tb->size) in order to for it to be
+               properly cleared -- thus we increment the PC here so that
+               the logic setting tb->size below does the right thing.  */
+            ctx.pc += 2;
+            goto done_generating;
         }
+
         ctx.opcode = cpu_lduw_code(env, ctx.pc);
         ctx.pc += decode_opc(cpu, &ctx);
-        num_insns++;
 
+        if (num_insns >= max_insns) {
+            break;
+        }
         if (cs->singlestep_enabled) {
             break;
         }
-
         if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) {
             break;
         }
@@ -899,29 +887,12 @@ gen_intermediate_code_internal(MoxieCPU *cpu, TranslationBlock *tb,
  done_generating:
     gen_tb_end(tb, num_insns);
 
-    if (search_pc) {
-        j = tcg_op_buf_count();
-        lj++;
-        while (lj <= j) {
-            tcg_ctx.gen_opc_instr_start[lj++] = 0;
-        }
-    } else {
-        tb->size = ctx.pc - pc_start;
-        tb->icount = num_insns;
-    }
-}
-
-void gen_intermediate_code(CPUMoxieState *env, struct TranslationBlock *tb)
-{
-    gen_intermediate_code_internal(moxie_env_get_cpu(env), tb, false);
-}
-
-void gen_intermediate_code_pc(CPUMoxieState *env, struct TranslationBlock *tb)
-{
-    gen_intermediate_code_internal(moxie_env_get_cpu(env), tb, true);
+    tb->size = ctx.pc - pc_start;
+    tb->icount = num_insns;
 }
 
-void restore_state_to_opc(CPUMoxieState *env, TranslationBlock *tb, int pc_pos)
+void restore_state_to_opc(CPUMoxieState *env, TranslationBlock *tb,
+                          target_ulong *data)
 {
-    env->pc = tcg_ctx.gen_opc_pc[pc_pos];
+    env->pc = data[0];
 }