[Qemu-devel] [PATCH 1/5] target-alpha: Add placeholders for missing userspace PALcalls.

[Richard Henderson]

Signed-off-by: Richard Henderson <address@hidden>
---
 hw/alpha_palcode.c |   32 ++++++++++++++++++++++++++++++--
 1 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/hw/alpha_palcode.c b/hw/alpha_palcode.c
index edec018..2a694dc 100644
--- a/hw/alpha_palcode.c
+++ b/hw/alpha_palcode.c
@@ -1061,6 +1061,16 @@ void call_pal (CPUState *env, int palcode)
     target_long ret;
 
     switch (palcode) {
+    case 0x80:
+        /* BPT */
+        qemu_log("BPT\n");
+        /* FIXME: Sends SIGTRAP, si_code=TRAP_BRKPT.  */
+        exit(1);
+    case 0x81:
+        /* BUGCHK */
+        qemu_log("BUGCHK\n");
+        /* FIXME: Sends SIGTRAP, si_code=SI_FAULT.  */
+        exit(1);
     case 0x83:
         /* CALLSYS */
         qemu_log("CALLSYS n " TARGET_FMT_ld "\n", env->ir[0]);
@@ -1075,6 +1085,14 @@ void call_pal (CPUState *env, int palcode)
             env->ir[IR_V0] = -ret;
         }
         break;
+    case 0x86:
+        /* IMB */
+        qemu_log("IMB\n");
+       /* ??? We can probably elide the code using page_unprotect that is
+          checking for self-modifying code.  Instead we could simply call
+          tb_flush here.  Until we work out the changes required to turn
+          off the extra write protection, this can be a no-op.  */
+        break;
     case 0x9E:
         /* RDUNIQUE */
         qemu_log("RDUNIQUE: " TARGET_FMT_lx "\n", env->unique);
@@ -1085,9 +1103,19 @@ void call_pal (CPUState *env, int palcode)
         qemu_log("WRUNIQUE: " TARGET_FMT_lx "\n", env->ir[IR_A0]);
         /* Handled in the translator for usermode.  */
         abort();
+    case 0xAA:
+        /* GENTRAP */
+        qemu_log("GENTRAP: " TARGET_FMT_lx "\n", env->ir[IR_A0]);
+        /* FIXME: This is supposed to send a signal:
+           SIGFPE:
+             GEN_INTOVF, GEN_INTDIV, GEN_FLTOVF, GEN_FLTDIV,
+             GEN_FLTUND, GEN_FLTINV, GEN_FLTINE, GEN_ROPRAND
+           SIGTRAP:
+             others
+           with various settings of si_code.  */
+        exit(1);
     default:
-        qemu_log("%s: unhandled palcode %02x\n",
-                    __func__, palcode);
+        qemu_log("%s: unhandled palcode %02x\n", __func__, palcode);
         exit(1);
     }
 }
-- 
1.6.5.2