Merge remote-tracking branch 'remotes/rth/tags/pull-hppa-20170206' into staging

Misc hppa fixes.

# gpg: Signature made Tue 07 Feb 2017 02:28:40 GMT
# gpg:                using RSA key 0xAD1270CC4DD0279B
# gpg: Good signature from "Richard Henderson <rth7680@gmail.com>"
# gpg:                 aka "Richard Henderson <rth@redhat.com>"
# gpg:                 aka "Richard Henderson <rth@twiddle.net>"
# Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC  16A4 AD12 70CC 4DD0 279B

* remotes/rth/tags/pull-hppa-20170206:
  target/hppa: Fix gdb_write_register
  target/hppa: Tidy do_cbranch
  linux-user: define correct UTS machine name for hppa
  linux-user: fix "apt-get update" on linux-user hppa
  linux-user: add hppa magic numbers in qemu-binfmt-conf.sh

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

linux-user/hppa/target_syscall.h

@@ -19,7 +19,7 @@ struct target_pt_regs {
     target_ulong ipsw;
 };
 
-#define UNAME_MACHINE "hppa"
+#define UNAME_MACHINE "parisc"
 #define UNAME_MINIMUM_RELEASE "2.6.32"
 #define TARGET_CLONE_BACKWARDS
 #define TARGET_MINSIGSTKSZ       2048

linux-user/syscall.c

@@ -9343,7 +9343,6 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
 #ifdef TARGET_NR_socket
     case TARGET_NR_socket:
         ret = do_socket(arg1, arg2, arg3);
-        fd_trans_unregister(ret);
         break;
 #endif
 #ifdef TARGET_NR_socketpair

scripts/qemu-binfmt-conf.sh

@@ -1,9 +1,10 @@
 #!/bin/sh
-# enable automatic i386/ARM/M68K/MIPS/SPARC/PPC/s390 program execution by the kernel
+# enable automatic i386/ARM/M68K/MIPS/SPARC/PPC/s390/HPPA
+# program execution by the kernel
 
 qemu_target_list="i386 i486 alpha arm sparc32plus ppc ppc64 ppc64le m68k \
 mips mipsel mipsn32 mipsn32el mips64 mips64el \
-sh4 sh4eb s390x aarch64"
+sh4 sh4eb s390x aarch64 hppa"
 
 i386_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x03\x00'
 i386_mask='\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
@@ -91,6 +92,10 @@ aarch64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x
 aarch64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
 aarch64_family=arm
 
+hppa_magic='\x7f\x45\x4c\x46\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x0f'
+hppa_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+hppa_family=hppa
+
 qemu_get_family() {
     cpu=${HOST_ARCH:-$(uname -m)}
     case "$cpu" in

target/hppa/gdbstub.c

@@ -85,6 +85,7 @@ int hppa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
         break;
     case 35:
         env->iaoq_b = val;
+        break;
     case 59:
         env->cr26 = val;
         break;

target/hppa/translate.c

@@ -1433,7 +1433,6 @@ static ExitStatus do_cbranch(DisasContext *ctx, target_long disp, bool is_n,
     target_ulong dest = iaoq_dest(ctx, disp);
     TCGLabel *taken = NULL;
     TCGCond c = cond->c;
-    int which = 0;
     bool n;
 
     assert(ctx->null_cond.c == TCG_COND_NEVER);
@@ -1455,14 +1454,14 @@ static ExitStatus do_cbranch(DisasContext *ctx, target_long disp, bool is_n,
     n = is_n && disp < 0;
     if (n && use_nullify_skip(ctx)) {
         nullify_set(ctx, 0);
-        gen_goto_tb(ctx, which++, ctx->iaoq_n, ctx->iaoq_n + 4);
+        gen_goto_tb(ctx, 0, ctx->iaoq_n, ctx->iaoq_n + 4);
     } else {
         if (!n && ctx->null_lab) {
             gen_set_label(ctx->null_lab);
             ctx->null_lab = NULL;
         }
         nullify_set(ctx, n);
-        gen_goto_tb(ctx, which++, ctx->iaoq_b, ctx->iaoq_n);
+        gen_goto_tb(ctx, 0, ctx->iaoq_b, ctx->iaoq_n);
     }
 
     gen_set_label(taken);
@@ -1471,23 +1470,17 @@ static ExitStatus do_cbranch(DisasContext *ctx, target_long disp, bool is_n,
     n = is_n && disp >= 0;
     if (n && use_nullify_skip(ctx)) {
         nullify_set(ctx, 0);
-        gen_goto_tb(ctx, which++, dest, dest + 4);
+        gen_goto_tb(ctx, 1, dest, dest + 4);
     } else {
         nullify_set(ctx, n);
-        gen_goto_tb(ctx, which++, ctx->iaoq_b, dest);
+        gen_goto_tb(ctx, 1, ctx->iaoq_b, dest);
     }
 
     /* Not taken: the branch itself was nullified.  */
     if (ctx->null_lab) {
         gen_set_label(ctx->null_lab);
         ctx->null_lab = NULL;
-        if (which < 2) {
-            nullify_set(ctx, 0);
-            gen_goto_tb(ctx, which, ctx->iaoq_b, ctx->iaoq_n);
-            return EXIT_GOTO_TB;
-        } else {
-            return EXIT_IAQ_N_STALE;
-        }
+        return EXIT_IAQ_N_STALE;
     } else {
         return EXIT_GOTO_TB;
     }