Merge remote-tracking branch 'remotes/rth/tags/cota-target-pull-request' into stagingHEADmaster

* Fix all next_page checks for overflow.
* Convert six targets to the translator loop.

# gpg: Signature made Wed 09 May 2018 18:20:43 BST
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/cota-target-pull-request: (28 commits)
  target/riscv: convert to TranslatorOps
  target/riscv: convert to DisasContextBase
  target/riscv: convert to DisasJumpType
  target/openrisc: convert to TranslatorOps
  target/openrisc: convert to DisasContextBase
  target/s390x: convert to TranslatorOps
  target/s390x: convert to DisasContextBase
  target/s390x: convert to DisasJumpType
  target/mips: convert to TranslatorOps
  target/mips: use *ctx for DisasContext
  target/mips: convert to DisasContextBase
  target/mips: convert to DisasJumpType
  target/mips: use lookup_and_goto_ptr on BS_STOP
  target/sparc: convert to TranslatorOps
  target/sparc: convert to DisasContextBase
  target/sparc: convert to DisasJumpType
  target/sh4: convert to TranslatorOps
  translator: merge max_insns into DisasContextBase
  target/mips: avoid integer overflow in next_page PC check
  target/s390x: avoid integer overflow in next_page PC check
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index 73a1b5e63e..15eca71d49 100644
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -2919,8 +2919,7 @@ static DisasJumpType translate_one(DisasContext *ctx, uint32_t insn)
     return ret;
 }
 
-static int alpha_tr_init_disas_context(DisasContextBase *dcbase,
-                                       CPUState *cpu, int max_insns)
+static void alpha_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu)
 {
     DisasContext *ctx = container_of(dcbase, DisasContext, base);
     CPUAlphaState *env = cpu->env_ptr;
@@ -2959,8 +2958,7 @@ static int alpha_tr_init_disas_context(DisasContextBase *dcbase,
         mask = TARGET_PAGE_MASK;
     }
     bound = -(ctx->base.pc_first | mask) / 4;
-
-    return MIN(max_insns, bound);
+    ctx->base.max_insns = MIN(ctx->base.max_insns, bound);
 }
 
 static void alpha_tr_tb_start(DisasContextBase *db, CPUState *cpu)